HDPE co-layered drainage pipe convenient to bend

Abstract

This utility model belongs to the field of drainage pipe construction technology and discloses an easy-to-bend HDPE same-floor drainage pipe, including a drainage pipe body. One end of the drainage pipe body is fixedly provided with a universal shell, and the other side of the universal shell is provided with a bending component. The bending component includes a universal ball head rotatably disposed inside the universal shell. The universal ball head is rotatably disposed inside and connected to a connecting pipe on its outer side. The other end of the connecting pipe is connected to a connecting pipe, and an insert pipe is inserted into the connecting pipe. Through the universally adjustable universal ball head structure in the bending component, combined with the universal shell structure, a larger bending angle can be provided through the longer bending connection part when bending the same-floor drainage pipe. In addition, the design of the anti-detachment structure can be used to avoid the drainage pipe bending direction being too large, which would affect the normal installation operation of the drainage pipe.

Description

Technical Field

[0001] This utility model belongs to the field of drainage pipe construction technology, specifically a flexible HDPE same-floor drainage pipe. Background Technology

[0002] In modern architecture, the design and material selection of drainage systems directly affect the functionality of buildings and the quality of life for residents. Traditional building drainage systems often employ a floor-level drainage method, where horizontal drainage pipes penetrate the floor slab and are installed under the ceiling of the lower-level resident, connecting to the drainage riser. This method has several drawbacks: First, pipes penetrating the floor slab are prone to leakage problems. Over time, the waterproof sealant at the connection between the floor slab and the pipe ages, leading to sewage leakage to the lower-level resident and causing neighborhood disputes. Second, the pipes in the floor-level drainage system are exposed in the lower-level space, requiring access to the lower-level resident's home for maintenance, which not only inconveniences the lower-level resident but may also delay maintenance progress due to communication difficulties. Third, exposed pipes affect the aesthetics of the lower-level space, and the drainage noise generated can disturb residents' rest. High-density polyethylene (HDPE) is a highly crystalline, non-polar thermoplastic resin with excellent physicochemical properties. With its high density and strength, HDPE can withstand greater water flow pressure and external loads, and is not easily deformed or cracked. It has strong chemical stability, is resistant to acid and alkali corrosion, and can effectively resist the erosion of various chemical components in domestic sewage, extending the service life of pipes. At the same time, HDPE material also has good low-temperature resistance, maintaining good flexibility in cold environments and is not prone to brittleness.

[0003] A plastic drain pipe with an adjustable bending angle, disclosed in CN219300158U, includes a connecting pipe, both ends of which are provided with insert pipes. A connecting ball is fixedly connected to one end of the insert pipe near the connecting pipe. The connecting ball is rotatably inserted into the interior of the connecting pipe. A sealing ring is fitted on the outer wall of the insert pipe and is connected to the connecting pipe.

[0004] When the aforementioned adjustable bending angle plastic drain pipe is used, the universal joint can be quickly positioned and steered when it is directly inserted into the inside of the steering connection structure. However, the direction of steering is limited. When using it for a wide range of bends, it is easy to cause it to deviate from its original position. In addition, the limiting structure is simple and there are many steering directions, which can easily affect the bending direction of the drain pipe.

[0005] Therefore, a flexible HDPE in-floor drainage pipe is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides an easy-to-bend HDPE same-layer drainage pipe, which has the advantages of increasing deflection for structures with different angles in multiple directions and limiting the direction of the deflection angle, thereby avoiding angular deflection of the drainage pipe and large-amplitude rotational deflection of the drainage pipe.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-bend HDPE same-layer drainage pipe, including a drainage pipe body, one end of which is fixedly provided with a universal shell, and the other side of the universal shell is also provided with a bending component;

[0008] The bending assembly includes a universal ball head rotatably disposed inside the universal housing. The universal ball head has a connecting pipe rotatably disposed inside and connected to the outside of the universal ball head. The other end of the connecting pipe is connected to a connecting tube, and an insert tube is inserted into the inside of the connecting tube.

[0009] Preferably, the surface of the universal ball joint is provided with symmetrical guide grooves, and a guide block fixed to the inner wall of the universal housing is slidably disposed inside the guide groove.

[0010] By adopting the above technical solution, a rotation guide groove can be provided for the movement of the guide block, so as to rotate the universal ball head to different positions.

[0011] Preferably, a limiting ring is fitted to the outer side of the opening end of the universal housing, and the limiting ring is fitted to the surface of the universal ball head. A bolt that is spirally arranged with the universal housing is provided through the surface of the limiting ring.

[0012] By adopting the above technical solution, the limiting ring is installed on the outside of the universal ball joint and positioned outside the connecting pipe to securely position the universal ball joint. It is more convenient to use bolts to fix the limiting ring, and the bottom of the limiting ring has a notch.

[0013] Preferably, a buckle is fixedly provided on the outer surface of the connecting pipe, a limiting crossbar is inserted into the inside of the buckle, and a cross frame is fixedly provided on the outside of the limiting crossbar.

[0014] By adopting the above technical solution, a positioning structure is provided by a buckle, and the positioning is achieved by the crossbar and the limiting crossbar being inserted into the inside of the buckle.

[0015] Preferably, one end of the crossbeam is rotatably provided with an adjusting screw, and the adjusting screw passes through the crossbeam on the other side and is spirally arranged with it.

[0016] By adopting the above technical solution, the adjusting screw is inserted into the inside of the crossbeam, and the distance between the crossbeams is tightened by rotating the adjusting screw. The limiting distance can be adjusted according to the length of the inserted tube.

[0017] Preferably, a rotating head is fixedly provided on the outer side of the adjusting screw, and the rotating head is hexagonal.

[0018] By adopting the above technical solution, it is easier for staff to rotate the adjusting screw.

[0019] Preferably, the limiting ring is designed with an open structure and is locked to the outside of the connecting pipe.

[0020] By adopting the above technical solution, the limiting ring is positioned on the outside of the connecting pipe through an open design, resulting in more stable positioning.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. This utility model, through the universal ball joint structure that can be adjusted in all directions in the bending component, combined with the universal shell structure, can provide a larger bending angle when bending drainage pipes on the same floor through the longer bending connection part. In addition, it can be combined with the design of the anti-detachment structure to avoid the bending direction of the drainage pipe being too large, which would affect the normal installation and operation of the drainage pipe.

[0023] 2. This utility model uses a pipe insert, a crossbar, and an adjusting screw structure. During the installation of the drainage pipe, the limiting crossbar can be installed inside the buckle for positioning. When tightening, the adjusting screw can be rotated to tighten and align the pipe, assembling it into a stable whole structure, which facilitates subsequent construction and maintenance operations. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the installation structure of the bending component of this utility model;

[0026] Figure 3 This is a partial exploded view of the bending component of this utility model;

[0027] Figure 4 This is a schematic diagram of the installation structure of the limiting ring of this utility model;

[0028] Figure 5 This is a schematic diagram of the installation structure of the crossbar of this utility model.

[0029] In the diagram: 1. Drain pipe body; 2. Universal casing;

[0030] 3. Bending assembly; 31. Universal ball joint; 32. Guide groove; 33. Connecting pipe; 34. Connecting pipe; 35. Insert pipe; 36. Buckle; 37. Limiting crossbar; 38. Crossbar; 39. Adjusting screw; 310. Rotating head; 311. Guide block; 312. Limiting ring; 313. Bolt. Detailed Implementation

[0031] 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.

[0032] The following describes an embodiment of this utility model based on its overall structure.

[0033] like Figures 1 to 5 As shown, this utility model provides an HDPE same-layer drainage pipe that is easy to bend, including a drainage pipe body 1. One end of the drainage pipe body 1 is fixedly provided with a universal shell 2. The universal shell 2 is directly welded or integrally formed and fixed to one side of the drainage pipe body 1 to improve the overall pipe structure sealing strength. The other side of the universal shell 2 is also provided with a bending component 3.

[0034] The bending assembly 3 includes a universal ball head 31 rotatably disposed inside the universal housing 2. The universal ball head 31 is rotatably disposed inside the universal ball head 31 and connected to the outside of the universal ball head 31 via a connecting pipe 33. The universal bending assembly 3 is connected through the connecting pipe 33. The other end of the connecting pipe 33 is connected to a connecting tube 34. An insert tube 35 is inserted into the inside of the connecting tube 34. The insert tube 35 is inserted into the inside of the connecting tube 34 to form an overall connected structure and complete the connection.

[0035] In this embodiment, the surface of the universal ball head 31 is provided with symmetrical guide grooves 32, and a guide block 311 fixed to the inner wall of the universal housing 2 is slidably provided inside the guide groove 32. The structure of the guide groove 32 can provide a rotation guide groove for the movement of the guide block 311, so as to rotate the universal ball head 31 to different positions.

[0036] A limiting ring 312 is attached to the outer side of the opening end of the universal housing 2, and the limiting ring 312 is attached to the surface of the universal ball head 31. A bolt 313, which is spirally arranged with the universal housing 2, is passed through the surface of the limiting ring 312. The limiting ring 312 is installed on the outer side of the universal ball head 31 and positioned outside the connecting pipe 33 to securely position the universal ball head 31. It is more convenient to fix the limiting ring 312 with bolts 313, and a notch is opened at the bottom of the limiting ring 312.

[0037] A buckle 36 is fixedly provided on the outer surface of the connector 34. A limiting crossbar 37 is inserted into the inside of the buckle 36. A crossbar 38 is fixedly provided on the outside of the limiting crossbar 37. The buckle 36 provides a positioning structure, and the positioning is achieved by the crossbar 38 and the limiting crossbar 37 being engaged into the inside of the buckle 36.

[0038] One end of the cross frame 38 is rotatably provided with an adjusting screw 39, and the adjusting screw 39 passes through the other side of the cross frame 38 and is screwed to it. The adjusting screw 39 is inserted into the interior of the cross frame 38, and the distance between the cross frames 38 is tightened by rotating the adjusting screw 39. The limiting distance can be adjusted according to the length of the insertion tube 35.

[0039] A rotating head 310 is fixedly provided on the outside of the adjusting screw 39, and the rotating head 310 is hexagonal; the hexagonal rotating head 310 is designed so that the operator can rotate the adjusting screw 39 to perform the tightening operation.

[0040] The limiting ring 312 is designed with an open structure and is locked to the outside of the connecting pipe 33. The limiting ring 312 is positioned to the outside of the connecting pipe 33 through the open design, which makes the positioning more stable.

[0041] The working principle and process of an easy-to-bend HDPE in-floor drainage pipe:

[0042] During the installation of the drainage pipe, the construction workers first lay the drainage pipe body 1 in the corresponding position. Since one end of the drainage pipe body 1 is fixedly connected to the universal housing 2, the universal housing 2 can be used as a connecting component to assemble with the bending assembly 3. The universal ball head 31 is aligned with the inside of the universal housing 2 and inserted. At this time, the symmetrical guide groove 32 on the surface of the universal ball head 31 cooperates with the guide block 311 fixed on the inner wall of the universal housing 2. The guide block 311 is embedded in the guide groove 32, which not only restricts the axial disengagement of the universal ball head 31, but also provides guidance for its rotation, ensuring that the universal ball head 31 can rotate flexibly inside the universal housing 2.

[0043] The limiting ring 312 is attached to the outer side of the opening end of the universal housing 2. The construction personnel use bolts 313 to pass through the limiting ring 312 and connect it to the universal housing 2 by screw. After tightening the bolts 313, the limiting ring 312 presses and fixes the universal ball head 31 inside the universal housing 2, ensuring that the universal ball head 31 can rotate while preventing it from loosening and falling off.

[0044] When the drain pipe needs to be bent to accommodate a complex building drainage layout, the hexagonal rotating head 310 on the outside of the adjusting screw 39 is rotated. Since the adjusting screw 39 passes through and is helically connected to the two crossbars 38, rotating the adjusting screw 39 will cause the two crossbars 38 to move closer or further apart. The crossbars 38 are connected to the buckle 36 via the limiting crossbar 37, which in turn pulls or pushes the connecting pipe 34. The connecting pipe 34 drives the connecting pipe 33, causing the universal ball head 31 to rotate within the universal housing 2, thus achieving the bending of the drain pipe. Due to the structural characteristics of the universal ball head 31, the drain pipe can be bent in multiple directions to meet different installation requirements.

[0045] After bending to the appropriate angle, stop rotating the adjusting screw 39. Its spiral structure has a self-locking function, which can fix the crossbar 38, connecting pipe 34, and other components in the current position, keeping the drain pipe in a bent state. The insert pipe 35 is inserted into the connecting pipe 34, which can quickly connect with other drain pipe components to complete the connection of the entire drainage system. During the use of the entire drainage system, the HDPE drain pipe body 1 and the bending assembly 3, with their high strength and corrosion resistance, ensure the stable operation of the drainage system. If the angle of the drain pipe needs to be adjusted later, simply rotate the rotating head 310 to adjust the adjusting screw 39 again to re-bend the drain pipe.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible HDPE in-layer drainage pipe, comprising a drainage pipe body (1), characterized in that: One end of the drain pipe body (1) is fixedly provided with a universal housing (2), and the other side of the universal housing (2) is also provided with a bending component (3). The bending assembly (3) includes a universal ball head (31) rotatably disposed inside the universal housing (2). The universal ball head (31) is rotatably disposed inside the universal ball head (31), and a connecting pipe (33) is connected to the outside of the universal ball head (31). The other end of the connecting pipe (33) is connected to a connecting tube (34), and a plug tube (35) is inserted into the inside of the connecting tube (34).

2. The easily bendable HDPE in-floor drainage pipe according to claim 1, characterized in that: The surface of the universal ball head (31) is provided with symmetrical guide grooves (32), and the guide block (311) is slidably provided inside the guide groove (32) and fixed to the inner wall of the universal housing (2).

3. The easily bendable HDPE in-layer drainage pipe according to claim 1, characterized in that: A limiting ring (312) is attached to the outer side of the opening end of the universal housing (2), and the limiting ring (312) is attached to the surface of the universal ball head (31). A bolt (313) that is spirally arranged with the universal housing (2) is provided through the surface of the limiting ring (312).

4. The easily bendable HDPE in-floor drainage pipe according to claim 1, characterized in that: The outer surface of the connecting pipe (34) is fixedly provided with a buckle (36), and a limiting crossbar (37) is inserted into the inside of the buckle (36). A crossbar (38) is fixedly provided on the outside of the limiting crossbar (37).

5. The easily bendable HDPE in-floor drainage pipe according to claim 4, characterized in that: One end of the crossbar (38) is provided with an adjusting screw (39), and the adjusting screw (39) passes through the crossbar (38) on the other side and is spirally arranged with it.

6. The easily bendable HDPE in-floor drainage pipe according to claim 5, characterized in that: The adjusting screw (39) is fixedly provided with a rotating head (310) on the outside, and the rotating head (310) is hexagonal.

7. The easily bendable HDPE in-layer drainage pipe according to claim 3, characterized in that: The limiting ring (312) is designed with an open structure and is locked to the outside of the connecting pipe (33).

Images