High density polyethylene electrofusion pipe fitting for building drainage

Abstract

This utility model discloses a high-density polyethylene electrofusion pipe fitting for building drainage, including a pipe body and branch pipes. The branch pipes are located at the center of the outer wall of the pipe body and are interconnected. The pipe body includes an outer layer, a reinforcing layer, and an inner layer. A reinforcing ring protrudes inward from the middle inner wall of the reinforcing layer and is embedded in an annular groove on the outer wall of the inner layer. Resistance wires are respectively provided at both ends of the inner wall of the inner layer, and a positioning structure is also provided in the middle of the inner wall of the inner layer. The positioning structure can be dislodged when the water pipe is inserted and touched. The reinforcing ring of this utility model can improve the strength of the pipe fitting, and the dislodable positioning structure facilitates the determination of consistent insertion depth and improves the overall strength.

Description

Technical Field

[0001] This utility model relates to building drainage pipe fittings, specifically a high-density polyethylene electrofusion pipe fitting for building drainage. Background Technology

[0002] Electrofusion fittings are commonly used for building drainage systems due to their ease of installation and reliable connection. However, these fittings are typically made from a single material, such as polyethylene pipes, which can still break under high drainage pressure. Furthermore, the consistency of the insertion depth of the drain pipe is difficult to ensure when connecting the pipe to the drain pipe using electrofusion, and inconsistencies can affect the overall strength. Utility Model Content

[0003] To address the shortcomings of the prior art, this utility model provides a high-density polyethylene electrofusion pipe fitting for building drainage. The reinforcing ring in this utility model can improve the strength of the pipe fitting, and the detachable positioning structure facilitates the determination of consistent insertion depth, thereby improving the overall strength.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution: a high-density polyethylene electrofusion pipe fitting for building drainage, comprising a pipe body and branch pipes, wherein the branch pipes are located at the center of the outer wall of the pipe body and are interconnected; the pipe body comprises an outer layer, a reinforcing layer, and an inner layer, wherein a reinforcing ring protrudes inwardly from the inner wall of the middle part of the reinforcing layer, and the reinforcing ring is embedded in the annular groove of the outer wall of the inner layer; resistance wires are respectively provided at both ends of the inner wall of the inner layer; and a positioning structure is also provided in the middle of the inner wall of the inner layer, wherein the positioning structure can be dislodged when the water pipe is inserted and touched.

[0005] The reinforcing ring is located at the center of the reinforcing layer, and the length of the reinforcing ring is less than one-third of the length of the reinforcing layer.

[0006] The two sides of the reinforcing ring are referred to as the bearing sections, and the resistance wire is located on the inner wall of the inner layer corresponding to the bearing section.

[0007] The number of positioning structures is at least one, and each positioning structure includes at least two positioning rods, which are evenly distributed around the circumference and fixed to the inner layer.

[0008] The first end of the positioning rod is fixed to the inner layer, and the second end faces the center.

[0009] The size of the first end is smaller than the size of the second end.

[0010] At least two positioning rods are connected by a flexible component.

[0011] The flexible components are made of rope or plastic.

[0012] It also includes terminals and wiring protection covers.

[0013] In summary, this utility model achieves the following technical effects:

[0014] This invention features a reinforcing ring at the center of the middle reinforcing layer, which improves the strength of the pipe fitting. The resistance wire is installed on the two sections without the reinforcing ring, increasing the installation space and further enhancing strength. The positioning structure ensures consistent insertion depth of the water pipes on both sides and allows for easy removal from the branch pipe. This invention offers superior strength and better electrofusion connection with the water pipes on both sides, improving overall strength. Attached Figure Description

[0015] Figure 1 It is a high-density polyethylene electrofusion pipe fitting for building drainage;

[0016] Figure 2 yes Figure 1 A cross-sectional schematic diagram;

[0017] Figure 3 This is a schematic diagram of adding a flexible component;

[0018] Figure 4 This is a schematic diagram of the installation of water pipes on both sides. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] Example:

[0026] Figure 1 It is a high-density polyethylene electrofusion pipe fitting for building drainage. Figure 2 yes Figure 1 A cross-sectional schematic diagram shows a pipe body 1 and branch pipes 8. The branch pipes 8 are located at the center of the outer wall of the pipe body 1 and are interconnected. The pipe body 1 includes an outer layer 101, a reinforcing layer 102, and an inner layer 103. The inner wall of the middle part of the reinforcing layer 102 has an inwardly protruding reinforcing ring 1021, and the reinforcing ring 1021 is embedded in the annular groove 1031 on the outer wall of the inner layer 103. The inner wall of the inner layer 103 is provided with resistance wires 4 at both ends. The inner wall of the inner layer 103 is also provided with a positioning structure in the middle part. The positioning structure can be dislodged when the water pipe 9 is inserted and touched.

[0027] This invention features a reinforcing ring at the center of the middle reinforcing layer, which improves the strength of the pipe fitting. The resistance wire is installed on the two sections without the reinforcing ring, increasing the installation space and further enhancing strength. The positioning structure ensures consistent insertion depth of the water pipes on both sides and allows for easy removal from the branch pipe 8. This invention offers superior strength and better electrofusion connection with the water pipes on both sides, improving overall strength.

[0028] The outer layer 101 and the inner layer 103 are made of high-density polyethylene (HDPE), and the reinforcing layer 102 is made of a high-strength polymer layer, such as glass fiber reinforced polyethylene, to enhance strength.

[0029] The reinforcing ring 1021 is located at the center of the reinforcing layer 102, and the length of the reinforcing ring 1021 is less than one-third of the length of the reinforcing layer 102.

[0030] The thicker middle layer of the reinforcing layer of this utility model results in better strength in the middle of the pipe fitting, especially after connecting the water pipes 9 on both sides, the strength in the middle is better, resulting in better overall strength after connection.

[0031] The two sides of the reinforcing ring 1021 are designated as bearing sections, and the resistance wire 4 is located on the inner wall of the inner layer 103 corresponding to the bearing section. The thicker sides of the inner layer allow for better installation of the resistance wire, resulting in better strength.

[0032] like Figure 2 As shown, the number of positioning structures is at least one, and each positioning structure includes at least two positioning rods, which are evenly distributed around the circumference and fixed to the inner layer 103.

[0033] Figure 2 Positioning structures 5 and 6 are shown. If a shallower insertion depth of the water pipe 9 is required, it can be inserted into positioning structure 5, or deeper into positioning structure 6. Of course, multiple positioning structures can be set up to more conveniently indicate the insertion depth, depending on the situation.

[0034] The first end of the positioning rod is fixed to the inner layer 103, and the second end faces the center.

[0035] The size of the first end is smaller than the size of the second end. When the water pipe 9 touches the positioning rod, it is assumed that it will continue to be inserted, breaking the connection between the thinner part of the first end and the inner layer. When it breaks, a sound can be heard as the positioning rod falls, or the resistance disappears when it is broken, indicating that the position has been reached. After the positioning rod is broken, it remains inside the pipe and can be removed from the opening of the branch pipe 8. The worker can simply reach in with their hand or use a hook to pull it out.

[0036] Figure 3 This is a schematic diagram of the addition of a flexible component, wherein the at least two positioning rods are connected by the flexible component 7.

[0037] The flexible component 7 is made of rope or plastic.

[0038] This invention incorporates a flexible component, which allows the broken positioning rod to become a single unit, making it easy to remove.

[0039] It also includes terminal block 3 and wiring protection cover 2.

[0040] Figure 4 This is a schematic diagram of the installation of the water pipes 9 on both sides. At this time, when the positioning structure 5 falls down, it means that it has been inserted into the designated position. Electrofusion connection can be achieved by connecting the electrode and the terminal.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A high-density polyethylene electrofusion pipe fitting for building drainage, characterized in that: The tube includes a body (1) and branch pipes (8), the branch pipes (8) being located at the center of the outer wall of the body (1) and interconnected; the body (1) includes an outer layer (101), a reinforcing layer (102), and an inner layer (103), the inner wall of the middle part of the reinforcing layer (102) has an inwardly protruding reinforcing ring (1021), and the reinforcing ring (1021) is embedded in the outer wall annular groove (1031) of the inner layer (103), the inner wall of the inner layer (103) is provided with resistance wires (4) at both ends, and the inner wall of the inner layer (103) is also provided with a positioning structure in the middle, the positioning structure being able to fall off when the water pipe (9) is inserted and touched.

2. The high-density polyethylene electrofusion pipe fitting for building drainage according to claim 1, characterized in that: The reinforcing ring (1021) is located at the center of the reinforcing layer (102), and the length of the reinforcing ring (1021) is less than one-third of the length of the reinforcing layer (102).

3. A high-density polyethylene electrofusion pipe fitting for building drainage according to claim 1, characterized in that: The two sides of the reinforcing ring (1021) are referred to as the bearing sections, and the resistance wire (4) is located on the inner wall of the inner layer (103) corresponding to the bearing section.

4. A high-density polyethylene electrofusion pipe fitting for building drainage according to claim 1, characterized in that: The number of the positioning structures is at least one, and each positioning structure includes at least two positioning rods, which are circumferentially distributed and fixed to the inner layer (103).

5. A high-density polyethylene electrofusion pipe fitting for building drainage according to claim 4, characterized in that: The first end of the positioning rod is fixed to the inner layer (103), and the second end faces the center.

6. A high-density polyethylene electrofusion pipe fitting for building drainage according to claim 5, characterized in that: The size of the first end is smaller than the size of the second end.

7. A high-density polyethylene electrofusion pipe fitting for building drainage according to claim 4, characterized in that: The at least two positioning rods are connected by a flexible element (7).

8. A high-density polyethylene electrofusion pipe fitting for building drainage according to claim 7, characterized in that: The flexible component (7) is made of rope or plastic.

9. A high-density polyethylene electrofusion pipe fitting for building drainage according to claim 1, characterized in that: It also includes a terminal block (3) and a wiring protection cover (2).

Images