Reducing straight-through PE pipe

Abstract

The utility model relates to the technical field of PE pipes, and discloses a reducing straight-through PE pipe which comprises a first pipe body and a second pipe body connected into a whole through a sleeve, and a sealing ring is installed at the communication position of the first pipe body and the second pipe body. By arranging the sealing ring with the double sealing lips, the sealing performance of the connector is improved through the closed space between the sealing lips, and the leakage problem can be effectively prevented; due to the arrangement of the hexagonal pipe body, a wrench can be conveniently used for rotating the straight-through PE pipe, connection and installation between the straight-through PE pipe and other structures can be completed without additional tools, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of PE pipe technology, and in particular to a reducing straight-through PE pipe. Background Technology

[0002] With the development of the PE pipe industry, various types of PE pipes have been widely used in water supply, drainage, gas, and chemical industries. However, these products still have some problems in practical use. For example, PE pipes on the market today typically adopt traditional designs, making their installation and connection processes relatively complex and requiring additional tools and accessories. This not only increases installation time and costs but also reduces the stability and reliability of the pipeline system to some extent. Furthermore, in some complex operating conditions, PE pipes often experience leaks due to poor joint sealing, affecting the normal operation of the system. Utility Model Content

[0003] The purpose of this invention is to provide a reducing diameter straight-through PE pipe, which aims to reduce the probability of leakage problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution for a reducing straight-through PE pipe:

[0005] It includes a first tube body and a second tube body connected as one unit by a sleeve, and a sealing ring is installed at the connection between the first tube body and the second tube body;

[0006] The inner wall of the sealing ring is provided with two raised sealing lips, the distance between the two sealing lips is 1mm, the height of the sealing lips is 2mm, and the outer wall of the sealing ring is provided with an annular flange.

[0007] Preferably, in the above-mentioned reducing straight-through PE pipe, the outer diameter and inner diameter of the first pipe body are both not less than the outer diameter of the second pipe body.

[0008] Preferably, in the above-mentioned reducing straight PE pipe, the lower end of the second pipe body is connected to a hexagonal pipe body, the inner walls of the first pipe body and the hexagonal pipe body are provided with internal thread sections, the outer wall of the sleeve is uniformly provided with several anti-slip grooves, and the inner wall of the sleeve is provided with an annular groove.

[0009] Preferably, in the above-mentioned reducing straight-through PE pipe, the outer diameter of the hexagonal pipe body is equal to the outer diameter of the second pipe body.

[0010] Preferably, in the above-mentioned reducing straight PE pipe, the annular flange is embedded in the annular groove of the inner wall of the sleeve.

[0011] Preferably, in the above-mentioned reducing straight PE pipe, the pitch of the internal thread section is 1.5mm and the thread angle of the internal thread section is 60°.

[0012] Preferably, in the above-mentioned reducing straight PE pipe, the sealing lip is made of EPDM rubber, the surface roughness of the sealing lip is Ra1.6, and the hardness of the sealing lip is Shore hardness 65.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] This invention improves the sealing performance of the interface by setting a sealing ring with double sealing lips and improving the sealing performance of the interface through the sealed space between the sealing lips, which can effectively reduce the probability of medium leakage. The hexagonal tube body makes it easy to rotate the straight PE pipe with a wrench, and the connection and installation between the straight PE pipe and other structures can be completed without additional tools, thus improving installation efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Legend:

[0018] 1. First tube body; 2. Sleeve; 3. Second tube body; 4. Sealing ring. Detailed Implementation

[0019] The technical solutions of this utility model application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described application is only a part of this utility model application, not all of it. Based on the application in this utility model, all other applications obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] Reference Figures 1-2 This utility model discloses a reducing straight-through PE pipe:

[0024] like Figures 1-2 As shown, this application discloses a reducing straight-through PE pipe, including a first pipe body 1 and a second pipe body 3 connected as one unit by a sleeve 2, and a sealing ring 4 is installed at the connection between the first pipe body 1 and the second pipe body 3;

[0025] The outer edge of the second pipe body 3 is tangent to the six sides of the hexagonal pipe body, ensuring the coaxiality and sealing of the straight PE pipe connection. The sealing ring 4 adopts a double sealing lip structure with a lip spacing of 1mm and a height of 2mm. It is made of EPDM rubber with a surface roughness of Ra1.6 and a Shore hardness of 65. The sealing ring 4 can improve the sealing reliability through the double sealing mechanism and can maintain the sealing performance under high pressure environment, which can effectively prevent media leakage.

[0026] Specifically, the first pipe body 1 and the second pipe body 3 are reliably integrated through the sleeve 2. The outer diameter of the first pipe body 1 is not less than the outer diameter of the second pipe body 3 to ensure a smooth transition of the fluid channel. The lower end of the second pipe body 3 is provided with a hexagonal pipe body. The inner walls of the first pipe body 1 and the hexagonal pipe body are both equipped with internal thread sections. This double thread design enhances the stability between the straight PE pipe and other structural connections, and facilitates quick assembly with external equipment. The outer wall of the sleeve 2 is evenly distributed with anti-slip grooves, and the inner wall is provided with an annular groove, which forms an embedded fit with the sealing ring 4, which can effectively prevent the straight PE pipe from axial displacement due to vibration or pressure fluctuations during use.

[0027] Furthermore, the anti-slip groove on the outer wall of sleeve 2 adopts a U-shaped structure, which is evenly distributed along the axial direction and has a groove depth of not less than 1mm. The internal thread section adopts a trapezoidal thread with a pitch of 1.5mm and a thread angle of 60°, which can improve the load-bearing capacity and self-locking performance of the threaded connection and ensure that the straight PE pipe can still maintain a stable connection under vibration or impact load.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reducing straight PE pipe, characterized by: It comprises a first pipe body (1) and a second pipe body (3) connected into one through a sleeve (2), and a sealing ring (4) is installed at the communication part of the first pipe body (1) and the second pipe body (3). Two protruding sealing lips are arranged on the inner wall of the sealing ring (4), the distance between the two sealing lips is 1mm, the height of the sealing lip is 2mm, and an annular flange is arranged on the outer wall of the sealing ring (4).

2. The reducing straight PE pipe according to claim 1, characterized in that: The outer diameter and the inner diameter of the first pipe body (1) are not less than the outer diameter of the second pipe body (3).

3. The reducing straight PE pipe according to claim 1, characterized in that: A hexagonal pipe body is communicated with the lower end of the second pipe body (3), the inner wall of the first pipe body (1) and the hexagonal pipe body are provided with an internal thread section, the outer wall of the sleeve (2) is uniformly provided with a plurality of anti-skid grooves, and the inner wall of the sleeve (2) is provided with an annular groove.

4. The reducing straight PE pipe according to claim 3, characterized in that: The outer edge of the second pipe body (3) is tangent to the six edges of the hexagonal pipe body.

5. The straight PE pipe of claim 1, wherein: The annular flange is embedded into the annular groove on the inner wall of the sleeve (2).

6. The straight PE pipe of varying diameter according to claim 3, characterized in that: The pitch of the internal thread section is 1.5mm, and the tooth type angle of the internal thread section is 60°.

7. The reducing straight PE pipe according to claim 5, characterized in that: The material of the sealing lip is ethylene-propylene-diene rubber, the surface roughness of the sealing lip is Ra1.6, and the hardness of the sealing lip is Shore hardness 65.

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