PVC drain pipe with high impact resistance

Abstract

The utility model discloses a PVC drain pipe with high impact resistance, which comprises a bent pipe, two ends of the bent pipe are integrally connected with joints, the joints of the joints and the bent pipe form step tables, sealing rings are arranged in the step tables and the joints, each sealing ring consists of a flat washer and a vertical washer, the flat washers are tightly attached to the surfaces of the step tables, and the vertical washers are tightly attached to the inner walls of the joints. A reinforcing pad is connected to the inner wall of the bent section of the bent pipe, the reinforcing pad is tightly attached to the large-bend side of the bent section of the bent pipe, and the reinforcing pad sequentially comprises a woven layer, a buffer layer and a wear-resistant layer from outside to inside. The strength of the pipe body on the large bend side of the bent section of the bent pipe is enhanced by arranging the reinforcing pad, the woven layer improves the strength and impact resistance of the pipe, the buffer layer is used for absorbing impact energy of a water body and reducing direct damage to the pipe body, the abrasion-resistant layer improves the abrasion resistance and the corrosion-resistant effect of the surface of the reinforcing pad, the service life is prolonged, and the service life is prolonged. And meanwhile, the sealing effect of connection between the pipeline and other pipelines is enhanced through the arranged sealing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a PVC drainage pipe with high impact resistance. Background Technique

[0002] The main component of the PVC drainage pipe is polyvinyl chloride resin. After processing and formula adjustment, it is formed by heating and pressurization, and then made through processes such as cooling and curing. It has the advantages of light weight, corrosion resistance, and simple processing, and is widely applicable to various drainage systems.

[0003] However, traditional PVC drainage pipes are easily damaged under high impact or harsh environments, affecting their service life and safety. Especially for elbow pipes, which are often used for pipe direction change connections between vertical and horizontal conveyances, the curved section of the pipe body is more vulnerable to the impact of water bodies and requires higher strength.

[0004] Therefore, we propose a PVC drainage pipe with high impact resistance to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a PVC drainage pipe with high impact resistance to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A PVC drainage pipe with high impact resistance includes an elbow pipe. Both ends of the elbow pipe are integrally connected with joints, and a stepped platform is formed at the connection between the joint and the elbow pipe. A sealing ring is provided in the stepped platform and the joint. The sealing ring is composed of a flat washer and a vertical washer. The flat washer is in close contact with the surface of the stepped platform, and the vertical washer is in close contact with the inner wall of the joint. A reinforcing pad is connected to the inner wall of the bent section of the elbow pipe, and the reinforcing pad is in close contact with the large bend side of the bent section of the elbow pipe. The reinforcing pad sequentially includes a woven layer, a buffer layer, and a wear-resistant layer from outside to inside.

[0008] In a further embodiment, a sunken annular groove is formed on the surface of the stepped platform, and a convex ring matching the annular groove is provided on the surface of the flat washer.

[0009] In a further embodiment, a number of protruding ridges are evenly provided on the inner side wall of the joint, and a number of grooves corresponding to the ridges one by one are evenly formed on the outer side wall of the vertical washer.

[0010] In a further embodiment, the thickness of one end of the vertical washer close to the joint port is less than the thickness of the other end.

[0011] In a further embodiment, the woven layer is woven from metal wires or high-strength plastic wires, and the woven layer is tightly connected to the inner wall of the pipe body of the elbow pipe to form a mesh structure.

[0012] In a further embodiment, the material of the buffer layer is elastic rubber or polyurethane foam.

[0013] In a further embodiment, the material of the wear-resistant layer is high-hardness and high-wear-resistant PVC material or polyurethane material, and the surface of the wear-resistant layer is coated with an anti-corrosion and antioxidant coating.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The present utility model strengthens the strength of the pipe body on the large-bend side of the bending section of the elbow by setting a reinforcing pad. Among them, the braided layer improves the strength and impact resistance of the pipe, the buffer layer is used to absorb the impact energy of the water body, reduce the direct damage to the pipe body, the wear-resistant layer improves the wear resistance and anti-corrosion effect of the surface of the reinforcing pad, extends the service life, and at the same time, the provided sealing ring facilitates the connection of the pipeline with other pipelines, effectively enhances the sealing effect after connection, and reduces the leakage at the connection. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic top view structure diagram inside the joint of the present utility model;

[0018] Figure 3 is a schematic half-sectional view structure diagram of the present utility model;

[0019] Figure 4 is the present utility model Figure 3 partial enlarged structure diagram at B in;

[0020] Figure 5 is a schematic installation cross-sectional structure diagram of the joint and the sealing ring of the present utility model;

[0021] Figure 6 is the present utility model Figure 2 partial enlarged structure diagram at A in.

[0022] In the figure: 1, elbow; 2, joint; 21, stepped platform; 211, annular groove; 22, convex rib; 3, sealing ring; 31, flat washer; 311, convex ring; 32, vertical washer; 321, strip groove; 4, reinforcing pad; 41, braided layer; 42, buffer layer; 43, wear-resistant layer. Detailed Embodiments

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-6 , a high-impact-resistant PVC drain pipe, including an elbow 1. The elbow 1 adopts a ninety-degree pipe body. Both ends of the elbow 1 are integrally connected with connectors 2, and the inner diameter of the connector 2 is larger than the inner diameter of the elbow 1, so that a stepped platform 21 is formed at the connection between the connector 2 and the elbow 1. A sealing ring 3 is provided in the stepped platform 21 and the connector 2. The sealing ring 3 is composed of a flat washer 31 and a vertical washer 32. The flat washer 31 is closely attached to the surface of the stepped platform 21, and the vertical washer 32 is closely attached to the inner wall of the connector 2, which is used to enhance the sealing effect when the pipe body is connected to other pipes.

[0027] The surface of the stepped platform 21 is provided with a sunken annular groove 211, and the surface of the flat washer 31 is provided with a convex ring 311 that matches the annular groove 211, so that the convex ring 311 can be embedded inside the annular groove 211, thereby preventing the flat washer 31 from being firmly installed on the stepped platform 21. At the same time, a number of protruding ridges 22 are evenly provided on the inner side wall of the joint 2, and a number of strip grooves 321 corresponding to the ridges 22 one by one are evenly opened on the outer side wall of the vertical washer 32. By embedding the ridges 22 in the strip grooves 321 to limit the vertical washer 32, the vertical washer 32 can be prevented from deflecting, thereby further improving the firmness of the installation of the sealing ring 3.

[0028] In order to facilitate connection with other pipelines, the thickness of one end of the vertical washer 32 close to the port of the joint 2 is set to be less than that of the other end, so that the inner diameter of one side of the outer port of the vertical washer 32 is greater than the inner diameter of the port of the vertical washer 32 close to the flat washer 31, making it more convenient for the connection end of other pipelines to be butted into the inside of the vertical washer 32. And as other pipelines are inserted deeper, the inner diameter of the vertical washer 32 gradually decreases, so that it fits more closely to the pipeline connection end and has a better sealing effect.

[0029] A reinforcing pad 4 is connected to the inner wall of the bent section of the elbow 1, and the reinforcing pad 4 is closely attached to the large-bend side of the bent section of the elbow 1, and the length of the reinforcing pad 4 extends to the straight pipe section, so that the water flowing down along the inner wall of the small-bend side of the bent section of the elbow 1 can also impact on the reinforcing pad 4, playing an effect of resisting impact on the pipe body of the elbow 1. The reinforcing pad 4 successively includes a woven layer 41, a buffer layer 42 and a wear-resistant layer 43 from the outside to the inside.

[0030] Among them, the woven layer 41 is woven from metal wires or high-strength plastic wires, and the woven layer 41 is closely connected to the inner wall of the pipe body of the elbow 1 to form a net structure, improving the strength and impact resistance of the pipe material.

[0031] The material of the buffer layer 42 is elastic rubber or polyurethane foam, which is used to absorb the impact energy of water and reduce the direct damage to the pipe body.

[0032] The material of the wear-resistant layer 43 is high-hardness and high-wear-resistant PVC material or polyurethane material, and an anti-corrosion and antioxidant coating is applied on the surface of the wear-resistant layer 43, improving the wear resistance and anti-corrosion effect of the surface of the reinforcing pad 4 and extending the service life.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0034] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A highly impact-resistant PVC drainage pipe, comprising a curved pipe (1), characterized in that: Both ends of the curved pipe (1) are integrally connected with joints (2), and a step platform (21) is formed at the connection between the joint (2) and the curved pipe (1). A sealing ring (3) is provided inside the step platform (21) and the joint (2), and the sealing ring (3) is composed of a flat washer (31) and a vertical washer (32). The flat washer (31) is in close contact with the surface of the step platform (21), and the vertical washer (32) is in close contact with the inner wall of the joint (2). A reinforcing pad (4) is connected to the inner wall of the bending section of the curved pipe (1), and the reinforcing pad (4) is in close contact with the large bend side of the bending section of the curved pipe (1). The reinforcing pad (4) comprises a braided layer (41), a buffer layer (42) and a wear-resistant layer (43) in sequence from the outside to the inside.

2. A high impact resistant PVC drainage pipe according to claim 1, characterized in that: The surface of the stepped platform (21) is provided with a recessed annular groove (211), and the surface of the flat washer (31) is provided with a convex ring (311) that matches the annular groove (211).

3. A high impact resistant PVC drainage pipe according to claim 1, characterized in that: A plurality of protruding ridges (22) are evenly arranged on the inner side wall of the joint (2), and grooves (321) corresponding to the ridges (22) are evenly arranged on the outer side wall of the vertical gasket (32).

4. A high impact resistant PVC drainage pipe according to claim 1, characterized in that: The thickness of one end of the vertical gasket (32) close to the port of the joint (2) is smaller than the thickness of the other end.

5. The high impact resistant PVC drainage pipe according to claim 1, characterized in that: The braided layer (41) is braided from metal wires or high-strength plastic wires, and the braided layer (41) is tightly connected to the inner wall of the curved pipe (1) to form a mesh structure.

6. The high impact resistant PVC drainage pipe according to claim 1, characterized in that: The material of the buffer layer (42) is elastic rubber or polyurethane foam.

7. The high impact resistant PVC drainage pipe according to claim 1, characterized in that: The wear-resistant layer (43) is made of a high-hardness, high-wear-resistant PVC material or a polyurethane material, and the surface of the wear-resistant layer (43) is coated with an anti-corrosion and anti-oxidation coating.

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