Impact-resistant PVC pipe elbow

By installing reinforcing ribs and beveled joints on the inner and outer walls of PVC elbows, the problems of deformation and delamination caused by impact and vibration during fluid transportation are solved, achieving higher impact resistance and connection stability.

CN224315739UActive Publication Date: 2026-06-02HUBEI KINGBULL PIPE IND

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI KINGBULL PIPE IND
Filing Date
2025-07-09
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

PVC elbows are prone to deformation and delamination during fluid transportation due to impact and vibration, which can cause leakage at the joint. Existing technologies need to improve their impact resistance.

Method used

Inner and outer reinforcing ribs are installed on the inner and outer walls of the PVC elbow, respectively, and a beveled joint is designed to increase the support area and connection length, forming an integrated structure to enhance tensile strength.

Benefits of technology

It improves the impact resistance and connection fixation of PVC pipe bends, reduces the risk of deformation and delamination during fluid transportation, and enhances the stability of the joint.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224315739U_ABST
    Figure CN224315739U_ABST
Patent Text Reader

Abstract

The utility model discloses an anti-impact PVC pipe elbow, including elbow main part, the both ends of elbow main part all are provided with the bevel joint, and the length of bevel joint corresponding elbow main part arc inside is greater than the length of corresponding arc outside, the position of the inside of elbow main part is provided with the inner reinforcing rib board at corresponding arc outside, and the position of the outside of elbow main part is provided with the outer reinforcing rib board at corresponding arc inside. The utility model discloses be provided with bevel joint, through increasing the support area and the connecting length of bevel joint corresponding arc inside, fully improve the fixed effect at the end of pipeline, lay the foundation for improving the impact resistance, and be provided with the inner reinforcing rib board and the outer reinforcing rib board of one -piece structure with elbow main part on the inner wall and the outer wall of arc outside and arc inside of elbow main part respectively, provide additional support force and tensile force for the arc position of elbow main part, thereby improve the impact resistance to conveying fluid.
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Description

Technical Field

[0001] This utility model relates to the field of PVC pipe fittings technology, specifically to an impact-resistant PVC pipe elbow. Background Technology

[0002] PVC pipe bends are pipe fittings used to change the direction of PVC pipes. They are manufactured through one-piece molding of PVC, giving them many advantages such as corrosion resistance, high pressure resistance, light weight, convenient construction, and low cost. Common types include 45-degree and 90-degree bends, which are widely used in construction, chemical, agricultural, and power industries. They are a widely used and extremely important type of pipe fitting.

[0003] PVC elbows are used in fluid transport systems. They are fixed to the pipeline by applying adhesive to the joints at both ends of the PVC elbow. During the internal fluid transport process, the transport direction changes at the PVC elbow, which will generate impact force on the outer arc of the inner wall of the PVC elbow. Over long-term use, the impact force and vibration can easily cause deformation and delamination, leading to leakage problems at the joint and causing problems in use. Therefore, it is essential to improve the impact resistance. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an impact-resistant PVC pipe elbow, which is used to improve the impact resistance of PVC pipe elbows during fluid transportation.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An impact-resistant PVC pipe elbow includes a bend body, both ends of which are provided with beveled connectors. The bend body is connected to a pipe through the beveled connectors, and the length of the beveled connector on the inner side of the arc of the bend body is greater than the length on the outer side of the arc.

[0007] An inner reinforcing rib is provided on the inner wall of the bent pipe body at the position corresponding to the outer side of the arc, and an outer reinforcing rib is provided on the outer wall of the bent pipe body at the position corresponding to the inner side of the arc.

[0008] Preferably, the bent pipe body, the beveled joint, the inner reinforcing rib plate, and the outer reinforcing rib plate are an integral structure.

[0009] Preferably, the end face of the beveled connector has an inclination angle of 30° to 45°.

[0010] Preferably, both the inner and outer reinforcing ribs are arc-shaped plates, and both the inner and outer reinforcing ribs are parallel to the plane of the arc corresponding to the main body of the bent pipe.

[0011] Preferably, there are multiple inner and outer reinforcing ribs, and the overall width of the inner and outer reinforcing ribs along the horizontal radial direction of the bend body does not exceed half of the inner diameter of the bend body.

[0012] Preferably, both ends of the inner and outer reinforcing ribs are connected at the position where the beveled joint connects to the main body of the bent pipe.

[0013] Preferably, the width of the middle part of both the inner and outer reinforcing ribs does not exceed one-third of the inner diameter of the bend body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention improves the fixing effect at the pipe end by setting a beveled connector, increasing the support area and connection length on the inner side of the corresponding arc, and increasing the adhesive area on the inner wall to improve the bonding area and connection length, thus enhancing the connection and fixing effect and laying the foundation for improved impact resistance. Furthermore, inner and outer reinforcing ribs, integral with the bend body, are respectively set on the inner wall of the outer side of the corresponding arc and the outer wall of the inner side of the arc, providing additional support and tensile strength to the arc position of the bend body, thereby improving the impact resistance to the transported fluid. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 3 This is the left view of the present invention;

[0019] Figure 4 This is the right view of the present invention.

[0020] In the diagram: 1. Main body of the bend; 2. Angled connector; 3. Pipe; 4. Inner reinforcing rib; 5. Outer reinforcing rib. Detailed Implementation

[0021] 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.

[0022] like Figure 1-4As shown, this utility model provides a technical solution: an impact-resistant PVC pipe elbow, including a bend body 1, with bevel joints 2 at both ends of the bend body 1. The bend body 1 is connected to a pipe 3 through the bevel joints 2, and the length of the bevel joint 2 corresponding to the inner side of the arc of the bend body 1 is greater than the length corresponding to the outer side of the arc. The inclination angle of the end face of the bevel joint 2 is 30° to 45°. After being connected to the pipe 3, the bevel joint 2, through its extended design, can better support the surface of the pipe 3, improve the strength of the connection structure, and thus improve the impact force on the centrifugal flow of the internal conveyed fluid.

[0023] An inner reinforcing rib plate 4 is provided on the inner wall of the bend body 1 at the position corresponding to the outer side of the arc, and an outer reinforcing rib plate 5 is provided on the outer wall of the bend body 1 at the position corresponding to the inner side of the arc. The bend body 1, the oblique joint 2, the inner reinforcing rib plate 4 and the outer reinforcing rib plate 5 are an integral structure, and the structural materials and densities of each part are the same.

[0024] Both the inner reinforcing rib plate 4 and the outer reinforcing rib plate 5 are arc-shaped plates, and both the inner reinforcing rib plate 4 and the outer reinforcing rib plate 5 are parallel to the plane of the arc corresponding to the main body of the bend pipe 1, which increases the tensile strength and improves the impact resistance. Both ends of the inner reinforcing rib plate 4 and the outer reinforcing rib plate 5 are connected at the position where the bevel joint 2 connects to the main body of the bend pipe 1, which improves the overall effect. The width of the middle part of the inner reinforcing rib plate 4 and the outer reinforcing rib plate 5 does not exceed one-third of the inner diameter of the main body of the bend pipe 1. The inner reinforcing rib plate 4 and the outer reinforcing rib plate 5 do not need to be too wide to achieve the expected effect.

[0025] There are multiple inner reinforcing ribs 4 and outer reinforcing ribs 5, and the overall width of the inner reinforcing ribs 4 and outer reinforcing ribs 5 along the horizontal radial direction of the bend body 1 does not exceed half of the inner diameter of the bend body 1. When the fluid flows, the impact force on the middle is greater than the impact force on the sides. By setting the inner reinforcing ribs 4 and outer reinforcing ribs 5 in the middle, the impact resistance can be effectively improved.

Claims

1. An impact-resistant PVC pipe elbow, comprising a bend body (1), characterized in that: Both ends of the bent pipe body (1) are provided with oblique connectors (2). The bent pipe body (1) is connected to the pipe (3) through the oblique connectors (2). The length of the oblique connector (2) corresponding to the inner side of the arc of the bent pipe body (1) is greater than the length of the outer side of the arc. An inner reinforcing rib plate (4) is provided on the inner wall of the bent pipe body (1) at the position corresponding to the outer side of the arc, and an outer reinforcing rib plate (5) is provided on the outer wall of the bent pipe body (1) at the position corresponding to the inner side of the arc.

2. The impact-resistant PVC pipe elbow according to claim 1, characterized in that: The main body of the bent pipe (1), the oblique joint (2), the inner reinforcing rib plate (4) and the outer reinforcing rib plate (5) are an integral structure.

3. The impact-resistant PVC pipe elbow according to claim 1, characterized in that: The end face of the beveled connector (2) has an inclination angle of 30° to 45°.

4. The impact-resistant PVC pipe elbow according to claim 1, characterized in that: The inner reinforcing rib plate (4) and the outer reinforcing rib plate (5) are both arc-shaped plates, and the inner reinforcing rib plate (4) and the outer reinforcing rib plate (5) are parallel to the plane of the arc corresponding to the main body of the bent pipe (1).

5. The impact-resistant PVC pipe elbow according to claim 1, characterized in that: There are multiple inner reinforcing ribs (4) and outer reinforcing ribs (5), and the overall width of the inner reinforcing ribs (4) and outer reinforcing ribs (5) along the horizontal radial direction of the bent pipe body (1) does not exceed half of the inner diameter of the bent pipe body (1).

6. The impact-resistant PVC pipe elbow according to claim 1, characterized in that: Both ends of the inner reinforcing rib (4) and the outer reinforcing rib (5) are connected at the position where the oblique joint (2) connects to the bent pipe body (1).

7. The impact-resistant PVC pipe elbow according to claim 1, characterized in that: The width of the middle part of the inner reinforcing rib (4) and the outer reinforcing rib (5) does not exceed one-third of the inner diameter of the bent pipe body (1).