High-strength PE pipe

Abstract

The utility model discloses a high-strength PE (polyethylene) pipe, which belongs to the technical field of PE pipes and is characterized by comprising a first pipe body, a bent pipe is sleeved on the surface of the first pipe body, a second pipe body is arranged on the inner wall of the bent pipe, a first limit frame is clamped on the surface of the first pipe body, and an anti-bending component is arranged on the rear side of the first limit frame. The inner wall of the anti-bending assembly makes contact with the surface of the bent pipe, and the problems that an existing PE pipe is limited in overall strength, hard to bear high pressure and external impact force and prone to breakage, deformation and other damage conditions, so that normal operation and the service life of a pipeline system are affected, and when the pipeline needs to be turned or bent, the bent pipe cannot be bent easily are solved. The problems that in the prior art, due to the lack of effective limiting and anti-bending measures, the accuracy and stability of the bending angle are not convenient to guarantee, angle deviation is often caused, smooth conveying of fluid is affected, and the situation of insufficient strength caused by uneven stress at the bending position is caused are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of PE pipe, especially to a high-strength PE pipe. BACKGROUND

[0002] The high-strength PE pipe is a kind of pipe material with higher strength and good comprehensive performance, which is made of polyethylene as main raw material by special production process and formula, extrusion molding and other processing methods, can withstand higher internal pressure and external pressure, is not prone to rupture and deformation, and can be used to transport various fluid media, such as fuel gas, water, chemical raw materials and the like.

[0003] The strength of PE pipe is relative, and the strength is still not as good as steel, but in the existing mechanical assembly and the like, steel support is more common, but the weight of steel support is large, inconvenient to move, and the production cost is higher.

[0004] The existing patent (publication number: CN210510559U) discloses a high-strength PE pipe, which comprises an inner pipe, an outer pipe and a supporting rod; the supporting rod is connected with the outer surface of the outer pipe through a connecting assembly; the connecting assembly comprises at least two grooves opened on the outer surface of the outer pipe, a base arranged in the groove and a fixing rod for fixing the base in the groove, the utility model replaces the steel support with large weight, improves the stability of the high-strength PE pipe during installation, and reduces the overall mass.

[0005] In view of the above problems, the existing patent provides a solution, but the overall strength of the existing PE pipe is limited, and it is difficult to withstand higher pressure and external impact force, and is prone to damage such as rupture and deformation, thereby affecting the normal operation and service life of the pipeline system, when the pipeline needs to be turned or bent, there is lack of effective limiting and anti-bending measures, which is not convenient to ensure the accuracy and stability of the bending angle, which often leads to angle deviation, not only affects the smooth conveying of fluid, but also causes the bending part to have insufficient strength due to uneven stress.

[0006] Therefore, a high-strength PE pipe is provided. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a high-strength PE pipe, which can solve the problems that the overall strength of the existing PE pipe is limited, it is difficult to withstand higher pressure and external impact force, and it is prone to damage such as rupture and deformation, thereby affecting the normal operation and service life of the pipeline system, when the pipeline needs to be turned or bent, there is lack of effective limiting and anti-bending measures, which is not convenient to ensure the accuracy and stability of the bending angle, which often leads to angle deviation, not only affects the smooth conveying of fluid, but also causes the bending part to have insufficient strength due to uneven stress.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a high-strength PE pipe, comprising a first pipe body, a curved pipe sleeved on the surface of the first pipe body, a second pipe body disposed on the inner wall of the curved pipe, a first limiting frame clamped on the surface of the first pipe body, an anti-bending assembly disposed on the rear side of the first limiting frame, the inner wall of the anti-bending assembly in contact with the surface of the curved pipe;

[0009] The first tube body includes an inner lining layer, an inner reinforcement layer is provided on the surface of the inner lining layer, a buffer layer is provided on the surface of the inner reinforcement layer, an outer reinforcement layer is provided on the surface of the buffer layer, a protective layer is provided on the surface of the outer reinforcement layer, and an outer coating layer is provided on the surface of the protective layer.

[0010] Preferably, the material of the inner lining layer is high-density polyethylene, and the material of the inner reinforcement layer is glass fiber.

[0011] Preferably, the buffer layer is made of nitrile rubber, and the outer reinforcement layer is made of aramid fiber.

[0012] Preferably, the material of the protective layer is medium-density polyethylene, and the material of the outer coating is polyurethane.

[0013] Preferably, the surface of the second tube body is clamped with a second limit frame, the inner wall of the second limit frame is rotatably connected to a support frame, the surface of the support frame is rotatably connected to the inner wall of the first limit frame, and the surface of the anti-bending component is movably connected to the inner wall of the support frame.

[0014] Preferably, a knob is movably connected to the inner wall of the support frame, and the surface of the knob is threadedly connected to the inner wall of the anti-bending component.

[0015] Preferably, the anti-bending assembly includes a movable block and a support plate, the movable block is bolted to the support plate on one side close to the support plate, the inner wall of the support plate contacts the surface of the bent pipe, the surface of the movable block is movably connected to the inner wall of the support frame, and the surface of the knob is threadedly connected to the inner wall of the movable block.

[0016] Preferably, the inner wall of the support frame is provided with a movable groove for use with the movable block, and the inner wall of the support plate is provided with an anti-bending groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1、The application sets the first pipe body, the inner lining layer has good chemical stability, can resist the erosion of various media, ensures the corrosion resistance of the first pipe body, the inner reinforcing layer enhances the overall strength of the first pipe body, the buffer layer can absorb and disperse internal and external stress, prevents stress concentration from causing damage to the structure of the first pipe body, improves reliability and durability under complex stress conditions, the outer reinforcing layer further improves the axial and circumferential strength of the first pipe body, greatly enhances the tensile, bending and external extrusion resistance, the protective layer can prevent the first pipe body from aging, fading and performance degradation due to long-term outdoor exposure, ensures the performance stability and appearance integrity during long-term outdoor use, the outer coating has good wear resistance, provides additional protection for the first pipe body, reduces surface friction damage during transportation, installation and use, effectively reduces maintenance cost and risk, and prolongs service life;

[0019] 2、The application sets the anti-bending assembly, which is clamped on the surface of the elbow pipe to control the bending angle of the elbow pipe and prevent the first pipe body, the elbow pipe and the second pipe body from deviating during bending, ensuring smooth and sealed pipeline system, and the anti-bending assembly strengthens the connection strength at the bending part, effectively overcoming the strength deficiency caused by bending, eliminating safety hazards such as leakage, and improving the stability and reliability of the pipeline system at the bending part. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure diagram of the high-strength PE pipe of the utility model;

[0021] Figure 2 It is the structure diagram of the inner lining layer of the utility model;

[0022] Figure 3 It is the structure diagram of the first limiting frame of the utility model;

[0023] Figure 4 It is the structure diagram of the supporting frame of the utility model;

[0024] Figure 5 It is the structure diagram of the anti-bending assembly of the utility model.

[0025] In the drawing, 1 is the first pipe body; 101 is the inner lining layer; 102 is the inner reinforcing layer; 103 is the buffer layer; 104 is the outer reinforcing layer; 105 is the protective layer; 106 is the outer coating; 2 is the first limiting frame; 3 is the anti-bending assembly; 301 is the movable block; 302 is the supporting plate; 4 is the elbow pipe; 5 is the second pipe body; 6 is the second limiting frame; 7 is the supporting frame; 8 is the knob; 9 is the movable slot; and 10 is the anti-bending slot. DETAILED DESCRIPTION

[0026] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-5 The present application provides a technical scheme:

[0028] A high-strength PE pipe comprises a first pipe body 1, the surface of the first pipe body 1 is sleeved with an elbow 4, the inner wall of the elbow 4 is provided with a second pipe body 5, the surface of the first pipe body 1 is clamped with a first limiting frame 2, the rear side of the first limiting frame 2 is provided with a bending prevention assembly 3, and the inner wall of the bending prevention assembly 3 is in contact with the surface of the elbow 4.

[0029] The first pipe body 1 comprises an inner lining layer 101, the surface of the inner lining layer 101 is provided with an inner reinforcing layer 102, the surface of the inner reinforcing layer 102 is provided with a buffer layer 103, the surface of the buffer layer 103 is provided with an outer reinforcing layer 104, the surface of the outer reinforcing layer 104 is provided with a protective layer 105, and the surface of the protective layer 105 is provided with an outer coating layer 106.

[0030] In the embodiment: by setting the first pipe body 1, the inner lining layer 101 provides a smooth inner surface, effectively reducing the fluid conveying resistance and reducing energy loss, while its good chemical stability can resist the erosion of various media, ensuring the corrosion resistance of the pipe material, the inner reinforcing layer 102 enhances the overall strength of the first pipe body 1, especially the hoop strength, so that the first pipe body 1 can withstand higher internal pressure and prevent rupture or deformation in high-pressure environment, the existence of the buffer layer 103 effectively absorbs and disperses the stress from the inside and outside, avoiding the damage to the structure of the first pipe body 1 caused by stress concentration, and enhancing the reliability and durability of the first pipe body 1 under complex stress conditions, the outer reinforcing layer 104 further strengthens the axial and hoop strength of the first pipe body 1, greatly improving the tensile, bending and external extrusion resistance of the first pipe body 1, so that it can adapt to more severe external environment and working conditions, the protective layer 105 effectively resists ultraviolet radiation, oxidation and chemical corrosion in the atmosphere, preventing the first pipe body 1 from aging, fading and performance degradation due to long-term exposure to the natural environment, ensuring the performance stability and appearance integrity of the first pipe body 1 during long-term outdoor use, the wear-resistant performance of the outer coating 106 provides additional protection for the pipe, reducing surface damage due to friction during handling, installation and use, while also facilitating the identification and differentiation of the first pipe body 1, improving the management efficiency and aesthetics of the pipeline system, by setting the anti-bending assembly 3, the anti-bending assembly 3 is clamped on the surface of the elbow 4, which can effectively limit the excessive deformation of the elbow 4, avoid the angle deviation of the first pipe body 1, the elbow 4 and the second pipe body 5 during bending use, and ensure that the bending part is always at the appropriate bending angle, thereby ensuring the smoothness and sealing of the pipeline system, while enhancing the connection strength of the bending part, avoiding the problem of insufficient strength caused by bending, effectively preventing the occurrence of safety hazards such as leakage, and improving the stability and reliability of the pipeline system at the bending part.

[0031] Specifically, as shown in Figure 2 , the material of the inner lining layer 101 is high-density polyethylene, and the material of the inner reinforcing layer 102 is glass fiber.

[0032] Specifically, as shown in Figure 2 , the material of the buffer layer 103 is nitrile rubber, and the material of the outer reinforcing layer 104 is aramid fiber.

[0033] Specifically, as shown in Figure 2 , the material of the protective layer 105 is medium-density polyethylene, and the material of the outer coating 106 is polyurethane material.

[0034] In the embodiment, the inner liner 101 is made of high-density polyethylene, which reduces fluid friction resistance, reduces energy consumption during transportation, improves efficiency, and has good chemical stability to resist corrosion of various media, ensuring the corrosion resistance of the first pipe body 1. The glass fiber of the inner reinforcing layer 102 has high strength characteristics, enhancing the overall mechanical properties of the first pipe body 1, especially the hoop strength, effectively sharing the internal high pressure, preventing the first pipe body 1 from breaking or deforming excessively, and improving the safety and reliability of the pipeline system under high pressure conditions. The butyronitrile rubber of the buffer layer 103 has excellent elasticity and flexibility, effectively absorbing and dispersing internal and external stress, avoiding damage to the structure of the first pipe body 1 caused by stress concentration. The material of the outer reinforcing layer 104 is aramid fiber, which facilitates the improvement of the axial and hoop strength of the first pipe body 1, further enhancing the tensile, bending and external pressure resistance of the first pipe body 1. The material of the protective layer 105 is medium-density polyethylene, which facilitates the prevention of aging, brittleness, discoloration and other problems of the first pipe body 1 due to long-term exposure to the natural environment, prolonging the service life of the first pipe body 1. The material of the outer coating layer 106 is polyurethane material, which facilitates the provision of additional wear protection for the first pipe body 1, preventing surface damage caused by friction with external objects during transportation, installation and use.

[0035] Specifically, as shown in Figure 1 , Figure 3 The surface of the second pipe body 5 is connected with the second limiting frame 6, the inner wall of the second limiting frame 6 is rotatably connected with the supporting frame 7, the surface of the supporting frame 7 is rotatably connected with the inner wall of the first limiting frame 2, and the surface of the anti-bending assembly 3 is movably connected with the inner wall of the supporting frame 7.

[0036] Specifically, as shown in Figure 3 The inner wall of the supporting frame 7 is movably connected with the knob 8, and the surface of the knob 8 is threadedly connected with the inner wall of the anti-bending assembly 3.

[0037] In the embodiment, the second limiting frame 6 is connected to the inner wall of the second pipe body 5, which facilitates the stable limiting and supporting work of the first limiting frame 2 and the second limiting frame 6 through the supporting frame 7, forming a flexible and stable supporting system. When the pipeline is bent, the stress at the bending position is dispersed to avoid stress concentration and reduce the risk of pipe damage, ensuring the smoothness and sealing of fluid transportation, improving the reliability and safety of the bending operation, reducing the probability of leakage and failure, and facilitating the stable installation and limiting of the anti-bending assembly 3 through the threaded connection between the knob 8 and the anti-bending assembly 3, thereby improving the stability and reliability of the bending position and providing support for high-precision pipeline laying.

[0038] Specifically, as shown in Figure 5As shown, the anti-bending assembly 3 comprises a movable block 301 and a support plate 302, the movable block 301 is bolted to one side of the support plate 302, the inner wall of the support plate 302 is in contact with the surface of the elbow pipe 4, the surface of the movable block 301 is movably connected with the inner wall of the support frame 7, and the surface of the knob 8 is threadedly connected with the inner wall of the movable block 301.

[0039] Specifically, as shown in Figure 4 , Figure 5 The inner wall of the support frame 7 is provided with a movable groove 9 matched with the movable block 301, and the inner wall of the support plate 302 is provided with an anti-bending groove 10.

[0040] In this embodiment, the anti-bending assembly 3 is composed of the movable block 301 and the support plate 302, the movable block 301 is movably connected with the support frame 7 and is threadedly controlled by the knob 8, so that the elbow pipe 4 can be stably limited to prevent excessive deformation and angle deviation of the elbow pipe 4, the anti-bending groove 10 of the support plate 302 is closely combined with the elbow pipe 4 to increase the constraint area and the friction force and enhance the anti-bending effect, thereby ensuring the smoothness and sealing performance of the pipeline.

[0041] Working principle: in the first pipe body 1 using process, by setting the first pipe body 1, the inner lining layer 101 provides smooth inner surface, effectively reduces the fluid conveying resistance, reduces energy loss, and its good chemical stability can resist the erosion of various media, ensure the corrosion resistance of the pipe material, the inner reinforcing layer 102 enhances the overall strength of the first pipe body 1, especially the hoop strength, so that the first pipe body 1 can withstand higher internal pressure, prevent rupture or deformation in high pressure environment, the existence of buffer layer 103 effectively absorbs and disperses the stress from inside and outside, avoids the damage to the structure of the first pipe body 1 caused by stress concentration, enhances the reliability and durability of the first pipe body 1 under complex stress conditions, the outer reinforcing layer 104 further strengthens the axial and hoop strength of the first pipe body 1, greatly improves the tensile, bending and external extrusion resistance of the first pipe body 1, so that it can adapt to more severe external environment and working conditions, the protective layer 105 effectively resists ultraviolet radiation, oxidation and chemical corrosion in the atmosphere, prevents the first pipe body 1 from aging, fading and performance degradation due to long-term exposure to natural environment, ensures the performance stability and appearance integrity of the first pipe body 1 in outdoor long-term use, the wear resistance of the outer coating 106 provides additional protection for the pipe, reduces the surface damage caused by friction during handling, installation and use, and also facilitates the identification and differentiation of the first pipe body 1, improves the management efficiency and aesthetics of the pipeline system, by setting the anti-bending assembly 3, the anti-bending assembly 3 is clamped on the surface of the elbow 4, which can effectively limit the excessive deformation of the elbow 4, avoid the angle deviation of the first pipe body 1, the elbow 4 and the second pipe body 5 in the bending use, ensure that the bending part is always at the appropriate bending angle, so as to ensure the smoothness and sealing of the pipeline system, at the same time, enhance the connection strength of the bending part, avoid the problem of insufficient strength caused by bending, effectively prevent the occurrence of safety hazards such as leakage, improve the stability and reliability of the pipeline system at the bending part.

[0042] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high strength PE pipe comprising a first pipe body (1), characterized in that: The surface of the first pipe body (1) is sleeved with an elbow pipe (4), the inner wall of the elbow pipe (4) is provided with a second pipe body (5), the surface of the first pipe body (1) is clamped with a first limiting frame (2), the rear side of the first limiting frame (2) is provided with a bending prevention assembly (3), and the inner wall of the bending prevention assembly (3) is in contact with the surface of the elbow pipe (4). The first pipe body (1) comprises an inner lining layer (101), the surface of the inner lining layer (101) is provided with an inner reinforcing layer (102), the surface of the inner reinforcing layer (102) is provided with a buffer layer (103), the surface of the buffer layer (103) is provided with an outer reinforcing layer (104), the surface of the outer reinforcing layer (104) is provided with a protective layer (105), and the surface of the protective layer (105) is provided with an outer coating layer (106).

2. A high strength PE pipe according to claim 1, characterized in that: The material of the inner lining layer (101) is high-density polyethylene, and the material of the inner reinforcing layer (102) is glass fiber.

3. The high strength PE pipe according to claim 1, characterized in that: The material of the buffer layer (103) is nitrile rubber, and the material of the outer reinforcing layer (104) is aramid fiber.

4. The high strength PE pipe according to claim 1, characterized in that: The material of the protective layer (105) is medium-density polyethylene, and the material of the outer coating layer (106) is polyurethane material.

5. The high strength PE pipe according to claim 1, characterized in that: The surface of the second pipe body (5) is clamped with a second limiting frame (6), the inner wall of the second limiting frame (6) is rotationally connected with a support frame (7), the surface of the support frame (7) is rotationally connected with the inner wall of the first limiting frame (2), and the surface of the bending prevention assembly (3) is movably connected with the inner wall of the support frame (7).

6. A high strength PE pipe according to claim 5, characterized in that: The inner wall of the support frame (7) is movably connected with a knob (8), and the surface of the knob (8) is threadedly connected with the inner wall of the bending prevention assembly (3).

7. A high strength PE pipe according to claim 6, characterized in that: The bending prevention assembly (3) comprises a movable block (301) and a support plate (302), one side of the movable block (301) close to the support plate (302) is bolted with the support plate (302), the inner wall of the support plate (302) is in contact with the surface of the elbow pipe (4), the surface of the movable block (301) is movably connected with the inner wall of the support frame (7), and the surface of the knob (8) is threadedly connected with the inner wall of the movable block (301).

8. A high strength PE pipe according to claim 7, characterized in that: The inner wall of the support frame (7) is provided with a movable groove (9) matched with the movable block (301), and the inner wall of the support plate (302) is provided with a bending prevention groove (10).

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