PVC corrugated line pipe with flaring

By incorporating positioning wedges, sealing rings, reinforcing wires, and reinforcing rings into the PVC corrugated conduit, the problems of insufficient connection stability and sealing and waterproofing effects are solved, achieving higher structural strength and practicality.

CN224204704UActive Publication Date: 2026-05-05SHENZHEN BOXINMEI NANOMETER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN BOXINMEI NANOMETER TECH CO LTD
Filing Date
2025-05-24
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The existing PVC corrugated conduit has insufficient connection stability and its sealing and waterproofing effects need to be improved.

Method used

Positioning wedges and sealing rings are installed in the flared structure of PVC corrugated conduit, and reinforcing wires and reinforcing rings are installed inside the conduit to enhance structural strength and friction. Meanwhile, corrugated grooves are installed on the outside to improve smoothness.

Benefits of technology

It improves the stability of the connection and the sealing and waterproofing effect, enhances the compressive and tensile strength of the PVC corrugated conduit, and improves its practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a PVC corrugated line pipe with a flaring, and relates to the line pipe technical field, the PVC corrugated line pipe comprises a PVC line pipe, the PVC line pipe comprises a line pipe body and a flaring structure fixed on one end of the line pipe body and integrated with the line pipe body, the line pipe body can be adaptively inserted in the flaring structure, and the flaring structure is fixed on the line pipe body. A positioning wedge block is fixedly connected to the interior of the flaring structure; a plurality of reinforcing wires are arranged in the PVC line pipe in the axial direction of the PVC line pipe, and the reinforcing wires arranged in the axial direction are connected through annular reinforcing rings at certain intervals. According to the PVC corrugated line pipe, the positioning wedge block is arranged on the flaring structure, after the line pipe body is inserted into the flaring structure, the friction force between the line pipe body and the flaring structure can be increased through the positioning wedge block, and then the stability of connection between the line pipe body and the flaring structure is improved; the compression resistance and the tensile strength of the PVC corrugated line pipe are improved.
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Description

Technical Field

[0001] This utility model relates to the field of conduit technology, specifically a PVC corrugated conduit with a flared end. Background Technology

[0002] PVC corrugated conduit is a common type of conduit used for the protection of electrical wires and cables, possessing good flexibility and pressure resistance. The flared end design facilitates installation and connection; the flared section allows for easier insertion of another section of conduit or fittings, achieving a sealed connection and avoiding the need for numerous additional joints, thus simplifying the construction process.

[0003] This type of corrugated conduit is commonly used in building electrical engineering, home renovations, and underground cable wiring. It provides effective protection for electrical wires. An environmentally friendly PVC conduit was proposed in Chinese Patent Publication No. CN220652861U. Research on existing technologies and the aforementioned patent revealed that while existing PVC corrugated conduits are easy to connect, the stability of the connection between two conduits needs improvement. Therefore, this utility model proposes a PVC corrugated conduit with a flared end. Utility Model Content

[0004] Technical problems to be solved

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a PVC corrugated conduit with a flared end.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a PVC corrugated conduit with a flared end, comprising a PVC conduit, the PVC conduit comprising a conduit body and a flared structure fixed to one end of the conduit body and integrally formed therewith, the conduit body being adaptably inserted into the interior of the flared structure, and a positioning wedge being fixedly connected inside the flared structure; by setting the positioning wedge in the flared structure, after the conduit body is inserted into the interior of the flared structure, the friction between the two can be increased by the positioning wedge, thereby improving the stability of the connection between the two.

[0008] The PVC conduit has multiple reinforcing wires arranged inside and along its axial direction. These reinforcing wires are connected by annular reinforcing rings at regular intervals. The arrangement of the reinforcing wires and reinforcing rings can effectively improve the structural strength of the PVC corrugated conduit, thereby enhancing both its compressive and tensile strength.

[0009] The flared structure also has a snap-fit ​​groove inside, and a sealing ring is provided at the snap-fit ​​groove. The snap-fit ​​groove and the sealing ring greatly improve the sealing and waterproofing effect of both when the conduit body is inserted into the flared structure, effectively enhancing the practicality of the device.

[0010] Preferably, the PVC conduit has several equally spaced corrugated grooves on its outer surface along the axial direction of the PVC conduit.

[0011] Preferably, the reinforcing wire and the reinforcing ring are made of aluminum.

[0012] Preferably, the distance between the reinforcing rings is 100-500mm.

[0013] Preferably, the sealing ring is positioned corresponding to the conduit body inserted into the flared structure, and one end of the conduit body is inserted deep into the flared structure and abuts against one side of the sealing ring.

[0014] Preferably, the inner wall of the PVC conduit is provided with a silicone coating.

[0015] Beneficial effects:

[0016] Compared with existing technologies, this flared PVC corrugated conduit has the following advantages:

[0017] This invention, by setting a positioning wedge in the flared structure, increases the friction between the conduit body and the snap-fit ​​groove inside the flared structure after the conduit body is inserted, thereby improving the stability of the connection. The setting of reinforcing wire and reinforcing ring can effectively improve the structural strength of the PVC corrugated conduit, thereby improving the compressive and tensile strength of the PVC corrugated conduit. The setting of snap-fit ​​groove and sealing ring greatly improves the sealing and waterproof effect of the conduit body after it is inserted into the flared structure, effectively enhancing the practicality of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3This is a schematic diagram of the reinforcing wire and reinforcing ring of this utility model;

[0022] Figure 4 This is a side sectional view of the present invention.

[0023] In the picture:

[0024] 1. PVC conduit; 2. Reinforcing wire; 3. Reinforcing ring; 4. Sealing ring; 5. Silicone coating; 101. Conduit body; 102. Flared structure; 103. Corrugated groove; 104. Positioning wedge; 105. Snap-fit ​​groove. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-4 As shown, this utility model provides a technical solution: a PVC corrugated conduit with a flared end, including a PVC conduit 1, the PVC conduit 1 including a conduit body 101, and a flared structure 102 fixed to one end of the conduit body 101 and integrally formed therewith. The conduit body 101 can be adapted to be inserted into the inside of the flared structure 102, and a positioning wedge 104 is fixedly connected inside the flared structure 102. By setting the positioning wedge 104 in the flared structure 102, after the conduit body 101 is inserted into the snap-fit ​​groove 105 inside the flared structure 102, the friction between the two can be increased by the cooperation of the positioning wedge 104 and the snap-fit ​​groove 105, thereby improving the stability of the connection between the two.

[0027] The PVC conduit 1 of this invention has multiple reinforcing wires 2 arranged inside along the axial direction of the PVC conduit. The multiple reinforcing wires 2 arranged axially are connected by annular reinforcing rings 3 at certain intervals. The arrangement of reinforcing wires 2 and reinforcing rings 3 can effectively improve the structural strength of the PVC corrugated conduit, thereby improving the compressive and tensile strength of the PVC corrugated conduit.

[0028] The flared structure 102 of this utility model is also provided with a snap-fit ​​groove 105 inside, and a sealing ring 4 is provided at the position of the snap-fit ​​groove 105. The snap-fit ​​groove 105 and the sealing ring 4 greatly improve the sealing and waterproof effect of the conduit body 101 after it is inserted into the flared structure 102, effectively enhancing the practicality of the device.

[0029] Please refer to the following carefully. Figure 1 and Figure 2and Figure 3 The PVC conduit 1 has several equally spaced corrugated grooves 103 on its outer surface along its axial direction. The inner wall of the PVC conduit 1 of this invention is provided with a silicone coating 5. The silicone coating 5 improves the smoothness of the inner wall of the PVC conduit 1, thus facilitating the threading process.

[0030] The reinforcing wire 2 and reinforcing ring 3 in this application are made of aluminum. The distance between the two reinforcing rings 3 is 100-500mm. The smaller the distance, the higher the structural strength of the conduit.

[0031] Please refer to the following carefully. Figure 2 The position of the sealing ring 4 corresponds to the conduit body 101 inserted into the flared structure 102. One end of the conduit body 101 is inserted deep into the flared structure 102 and abuts against one side of the sealing ring 4.

[0032] Working principle: A positioning wedge 104 is provided in the flared structure 102. After the conduit body 101 is inserted into the snap-fit ​​groove 105 inside the flared structure 102, the friction between the positioning wedge 104 and the snap-fit ​​groove is increased through their cooperation, thereby improving the stability of the connection. The reinforcing wire 2 and reinforcing ring 3 can effectively improve the structural strength of the PVC corrugated conduit, thus improving the compressive and tensile strength of the PVC corrugated conduit. The snap-fit ​​groove 105 and sealing ring 4 greatly improve the sealing and waterproofing effect of the conduit body 101 after it is inserted into the flared structure 102, effectively enhancing the practicality of the device.

[0033] 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 a process, method, article, or apparatus.

[0034] 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 PVC corrugated conduit with a flared end, comprising a PVC conduit (1), characterized in that: The PVC conduit (1) includes a conduit body (101) and a flared structure (102) fixed to one end of the conduit body (101) and integrally formed therewith. The conduit body (101) can be adapted to be inserted into the inside of the flared structure (102), and a positioning wedge (104) is fixedly connected inside the flared structure (102). The inner ring surface of the PVC conduit (1) is uniformly provided with multiple reinforcing wires (2) along its axial direction, and the multiple reinforcing wires (2) are connected by annular reinforcing rings (3) that are spaced apart. The flared structure (102) is further provided with a snap-fit ​​groove (105) inside, and a sealing ring (4) is provided at the position of the snap-fit ​​groove (105).

2. The PVC corrugated conduit with flared end according to claim 1, characterized in that: The PVC conduit (1) has several equidistantly arranged corrugated grooves (103) on its exterior along the axial direction.

3. The PVC corrugated conduit with flared end according to claim 1, characterized in that: The reinforcing wire (2) and the reinforcing ring (3) are made of aluminum.

4. A PVC corrugated conduit with a flared end according to claim 1, characterized in that: The distance between two adjacent reinforcing rings (3) is 100-500mm.

5. A PVC corrugated conduit with a flared end according to claim 1, characterized in that: The position of the sealing ring (4) corresponds to the conduit body (101) inserted into the flared structure (102). One end of the conduit body (101) is inserted deep into the flared structure (102) and abuts against one side of the sealing ring (4).

6. A PVC corrugated conduit with a flared end according to claim 1, characterized in that: A silicone coating (5) is provided on the inner wall of the PVC conduit (1).

Citation Information

Patent Citations

  • Environment-friendly PVC (polyvinyl chloride) line pipe

    CN220652861U