PVC pipe with reinforcing rib structure

Abstract

The utility model relates to PVC pipe technical field discloses a PVC pipe with reinforcing rib structure, including inner tube, the inside fixedly connected with six groups of fixed seat of inner tube, six groups of inner groove are seted up in the inside of six groups of fixed seat, six groups of inner groove are provided with six groups of stainless steel bar in the inside, the outside of inner tube is provided with outer tube, the outside fixedly connected with multiple groups of convex rib of outer tube, when using, through setting up stainless steel bar in the inside of inner groove, the tensile strength of stainless steel bar is far higher than PVC pipe, and stainless steel bar sets up along the pipe length direction, equivalent to forming longitudinal reinforcing framework in the inside of PVC pipe, when the pipe material is bent, stainless steel bar will directly bear the tensile stress, thereby prevent PVC pipe from breaking due to excessive stretching, through the outside fixedly connected with multiple groups of convex rib of outer tube, when the pipe material is subjected to lateral pressure, convex rib will contact external force first, and the pressure is transmitted to the whole outer tube wall, and then avoid local stress concentration and lead to pipe wall indentation or rupture.

Description

Technical Field

[0001] This utility model relates to the field of PVC pipe technology, specifically a PVC pipe with a reinforcing rib structure. Background Technology

[0002] PVC pipe is a type of plastic pipe made from polyvinyl chloride resin as the main raw material, with the addition of appropriate amounts of stabilizers, lubricants, fillers and other additives, and processed through extrusion molding or injection molding.

[0003] In daily life, conventional PVC pipes are often used to transport pressurized fluids such as water and gas. The internal pressure will cause the pipe to expand and deform. Long-term high pressure will lead to pipe rupture. At the same time, PVC pipes are easily bent and sag due to their own weight or slight external force, which will affect fluid transportation or service life.

[0004] Now, a PVC pipe with a reinforced rib structure is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a PVC pipe with a reinforcing rib structure to solve the problems mentioned in the background art, such as pipe rupture caused by long-term high pressure and bending and sagging due to its own weight or slight external force.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a PVC pipe with a reinforcing rib structure, comprising an inner pipe, wherein six sets of fixing seats are fixedly connected inside the inner pipe, and six sets of inner grooves are opened inside the six sets of fixing seats. Six sets of stainless steel rods are arranged inside the six sets of inner grooves. An outer pipe is arranged outside the inner pipe, and multiple sets of protruding ribs are fixedly connected to the outside of the outer pipe.

[0007] As a further technical solution of this utility model, the six sets of fixed seats are arranged at equal angles, the dimensions of the six sets of inner grooves are matched with the stainless steel rods, and the multiple sets of convex ribs are evenly arranged.

[0008] As a further technical solution of this utility model, the outer side of the inner tube is fitted with a first steel wire armor layer, the inner side of the outer tube is provided with a second steel wire armor layer, and a heat insulation layer is filled between the first steel wire armor layer and the second steel wire armor layer.

[0009] As a further technical solution of this utility model, the inner diameter of the first steel wire armor layer matches the outer diameter of the inner tube, the outer diameter of the second steel wire armor layer matches the inner diameter of the fixing seat, and the insulation layer is made of PU foam material.

[0010] As a further technical solution of this utility model, a first connecting seat is fixedly connected to the front end of the inner tube, and a second connecting seat is fixedly connected to the rear end of the inner tube, with a limit ring threadedly connected to the outer side of the second connecting seat.

[0011] As a further technical solution of this utility model, the thread on the outer side of the first connecting seat matches the thread on the outer side of the second connecting seat, the thread inside the limiting ring matches the first connecting seat, and the limiting ring moves back and forth on the outer side of the second connecting seat.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the PVC pipe with the reinforcing rib structure not only prevents the PVC pipe from breaking due to excessive stretching, but also avoids bending and collapsing due to temperature, and also enables the rapid connection of two sets of PVC pipes.

[0013] (1) By setting an inner tube, a fixed seat, an inner groove, a stainless steel rod, an outer tube and ribs, when in use, a stainless steel rod is set inside the inner groove. The tensile strength of the stainless steel rod is much higher than that of the PVC pipe. The stainless steel rod is set along the length of the pipe, which is equivalent to forming a longitudinal reinforcing skeleton inside the PVC pipe. When the pipe is subjected to bending force, the stainless steel rod will directly bear the tensile stress, thereby preventing the PVC pipe from breaking due to excessive stretching. By fixing and connecting multiple sets of ribs on the outside of the outer tube, when the pipe is subjected to lateral pressure, the ribs will first contact the external force and transmit the pressure to the entire outer tube wall, thereby avoiding local stress concentration that could cause the pipe wall to dent or break.

[0014] (2) By setting a first steel wire armor layer, a second steel wire armor layer and an insulation layer, when in use, by setting an insulation layer between the first steel wire armor layer and the second steel wire armor layer, the insulation layer can form a rigid support structure with the first steel wire armor layer and the second steel wire armor layer, which can make up for the defect of the rigidity of the PVC pipe itself changing with temperature, prevent the pipe from bending or collapsing due to "thermal expansion and contraction" when transporting high temperature and low temperature fluids, and at the same time, avoid the PVC pipe from freezing and cracking due to the low temperature on the outside.

[0015] (3) By providing a first connecting seat, a second connecting seat and a limiting ring, when in use, the first connecting seat is fixedly connected to the front end of the inner tube and the second connecting seat is fixedly connected to the rear end of the inner tube. The threads on the outer sides of the first connecting seat and the second connecting seat match. The limiting ring is connected to the outer thread of the second connecting seat. The limiting ring is manually rotated, and the limiting ring rotates to the outer side of the second connecting seat. The limiting seat part rotates to the first connecting seat of the other PVC pipe, thereby realizing the quick connection of the two sets of PVC pipes. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a side sectional view of the present invention.

[0018] Figure 3 This is a side view of the structure of this utility model;

[0019] Figure 4 For the present utility model Figure 1 A magnified schematic diagram of a partial cross-section at point A in the middle.

[0020] In the diagram: 1. Inner tube; 2. Fixing seat; 3. Inner groove; 4. Stainless steel rod; 5. Outer tube; 6. Protruding rib; 7. First steel wire armor layer; 8. Second steel wire armor layer; 9. Insulation layer; 10. First connecting seat; 11. Second connecting seat; 12. Limiting ring. 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] Example: Please refer to Figure 1-4 A PVC pipe with a reinforcing rib structure includes an inner pipe 1, six sets of fixing seats 2 are fixedly connected inside the inner pipe 1, six sets of inner grooves 3 are opened inside the six sets of fixing seats 2, six sets of stainless steel rods 4 are arranged inside the six sets of inner grooves 3, and an outer pipe 5 is arranged outside the inner pipe 1, and multiple sets of protruding ribs 6 are fixedly connected to the outside of the outer pipe 5.

[0023] Six sets of fixed seats 2 are arranged at equal angles, the dimensions of six sets of inner grooves 3 are matched with stainless steel bars 4, and multiple sets of protruding ribs 6 are evenly arranged.

[0024] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, during use, stainless steel rods 4 are installed inside the inner groove 3. The tensile strength of stainless steel rods 4 is much higher than that of PVC pipes. Since stainless steel rods 4 are installed along the length of the pipe, they are equivalent to forming a longitudinal reinforcing skeleton inside the PVC pipe. When the pipe is subjected to bending force, stainless steel rods 4 will directly bear tensile stress, thereby preventing the PVC pipe from breaking due to excessive stretching. By fixing multiple sets of convex ribs 6 to the outside of the outer pipe 5, when the pipe is subjected to lateral pressure, the convex ribs 6 will first contact the external force and transmit the pressure to the entire wall of the outer pipe 5, thereby avoiding local stress concentration that could cause the pipe wall to dent or break.

[0025] The outer side of the inner tube 1 is fitted with a first steel wire armor layer 7, and the inner side of the outer tube 5 is provided with a second steel wire armor layer 8. The space between the first steel wire armor layer 7 and the second steel wire armor layer 8 is filled with an insulation layer 9. The inner diameter of the first steel wire armor layer 7 matches the outer diameter of the inner tube 1, and the outer diameter of the second steel wire armor layer 8 matches the inner diameter of the fixing seat 2. The insulation layer 9 is made of PU foam material.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, during use, an insulation layer 9 is set between the first steel wire armor layer 7 and the second steel wire armor layer 8. The insulation layer 9 can form a rigid support structure with the first steel wire armor layer 7 and the second steel wire armor layer 8, which makes up for the defect of the rigidity of the PVC pipe itself changing with temperature. This prevents the pipe from bending or collapsing due to "thermal expansion and contraction" when transporting high-temperature and low-temperature fluids. At the same time, it also avoids the phenomenon of freezing and cracking of the PVC pipe due to the low temperature on the outside.

[0027] The front end of the inner tube 1 is fixedly connected to a first connecting seat 10, and the rear end of the inner tube 1 is fixedly connected to a second connecting seat 11. A limit ring 12 is threadedly connected to the outer side of the second connecting seat 11. The thread on the outer side of the first connecting seat 10 matches the thread on the outer side of the second connecting seat 11. The thread inside the limit ring 12 matches the first connecting seat 10. The limit ring 12 moves back and forth on the outer side of the second connecting seat 11.

[0028] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, in use, a first connecting seat 10 is fixedly connected to the front end of the inner tube 1, and a second connecting seat 11 is fixedly connected to the rear end of the inner tube 1. The threads on the outer sides of the first connecting seat 10 and the second connecting seat 11 are matched. The outer thread of the second connecting seat 11 is connected to a limiting ring 12. By manually rotating the limiting ring 12, the limiting ring 12 rotates on the outer side of the second connecting seat 11, and the limiting seat part rotates to the first connecting seat 10 of the other PVC pipe, thereby realizing the quick connection of the two sets of PVC pipes.

[0029] Working Principle: In use, this invention firstly, by setting stainless steel rods 4 inside the inner groove 3, the tensile strength of which is much higher than that of PVC pipe, and by setting the stainless steel rods 4 along the length of the pipe, it effectively forms a longitudinal reinforcing skeleton inside the PVC pipe. When the pipe is subjected to bending force, the stainless steel rods 4 directly bear the tensile stress, thus preventing the PVC pipe from breaking due to excessive stretching. Secondly, by fixing multiple sets of protruding ribs 6 to the outside of the outer pipe 5, when the pipe is subjected to lateral pressure, the protruding ribs 6 will first contact the external force, transmitting the pressure to the entire wall of the outer pipe 5, thereby avoiding localized stress concentration that could lead to pipe wall depression or cracking. Thirdly, by setting an insulation layer 9 between the first steel wire armor layer 7 and the second steel wire armor layer 8, the insulation layer 9 can be connected to the first steel wire armor layer 7 and the second steel wire armor layer 8. The steel wire armor layer 8 forms a rigid support structure, which compensates for the defect of the rigidity of the PVC pipe itself changing with temperature. It prevents the pipe from bending or collapsing due to thermal expansion and contraction when transporting high-temperature and low-temperature fluids. At the same time, it also avoids the PVC pipe from freezing and cracking due to the low temperature on the outside. Meanwhile, by fixing the first connecting seat 10 to the front end of the inner pipe 1 and fixing the second connecting seat 11 to the rear end of the inner pipe 1, the threads on the outside of the first connecting seat 10 and the second connecting seat 11 are matched. The outer thread of the second connecting seat 11 is connected to the limiting ring 12. By manually rotating the limiting ring 12, the limiting ring 12 rotates to the outside of the second connecting seat 11, and the limiting seat part rotates to the first connecting seat 10 of the other PVC pipe, thereby realizing the quick connection of the two sets of PVC pipes.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A PVC pipe with a reinforcing rib structure, comprising an inner pipe (1), characterized in that: The inner tube (1) is fixedly connected to six sets of fixing seats (2), and the six sets of fixing seats (2) are provided with six sets of inner grooves (3). The six sets of inner grooves (3) are provided with six sets of stainless steel rods (4). The outer tube (5) is provided on the outside of the inner tube (1), and multiple sets of protruding ribs (6) are fixedly connected to the outside of the outer tube (5).

2. A PVC pipe with a reinforcing rib structure according to claim 1, characterized in that: The six sets of fixed seats (2) are arranged at equal angles, the dimensions of the six sets of inner grooves (3) are matched with the stainless steel rods (4), and the multiple sets of protruding ribs (6) are arranged evenly.

3. The PVC pipe with reinforcing structure according to claim 1, characterized in that: The inner tube (1) is fitted with a first steel wire armor layer (7) on the outside, and the outer tube (5) is provided with a second steel wire armor layer (8) inside. An insulation layer (9) is filled between the first steel wire armor layer (7) and the second steel wire armor layer (8).

4. A PVC pipe with a reinforcing rib structure according to claim 3, characterized in that: The inner diameter of the first steel wire armor layer (7) matches the outer diameter of the inner tube (1), the outer diameter of the second steel wire armor layer (8) matches the inner diameter of the fixing seat (2), and the insulation layer (9) is made of PU foam material.

5. A PVC pipe with a reinforcing rib structure according to claim 1, characterized in that: The front end of the inner tube (1) is fixedly connected to a first connecting seat (10), and the rear end of the inner tube (1) is fixedly connected to a second connecting seat (11). A limit ring (12) is threadedly connected to the outer side of the second connecting seat (11).

6. A PVC pipe with a reinforcing rib structure according to claim 5, characterized in that: The thread on the outside of the first connecting seat (10) matches the thread on the outside of the second connecting seat (11), the thread inside the limiting ring (12) matches the first connecting seat (10), and the limiting ring (12) moves back and forth on the outside of the second connecting seat (11).

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