PP pipe capable of preventing joint from aging and deformation

Abstract

The utility model discloses a propene polymer (PP) pipe capable of preventing aging deformation at joint, which relates to the technical field of PP pipes, and comprises a PP pipe main body and a reinforcing mechanism, the reinforcing mechanism is arranged in the PP pipe main body, the reinforcing mechanism comprises a plurality of strip-shaped ribs, the plurality of strip-shaped ribs are fixedly connected to the inner wall of the PP pipe main body at intervals, and the strip-shaped ribs are arranged in the PP pipe main body. A plurality of annular ribs are fixedly connected between every two adjacent strip-shaped ribs at intervals, and the outer walls of the annular ribs are fixedly connected with the inner wall of the PP pipe body. The adjacent annular ribs are connected through the strip-shaped ribs, so that after the outer wall of the PP pipe body is extruded, extrusion force can be transmitted to the annular ribs, the annular ribs between the two strip-shaped ribs are short, the deformation space of the annular ribs is small, and the annular ribs are not prone to deformation; and therefore, the phenomenon that the PP pipe main body cannot be connected with an external pipe due to the fact that the joint position of the PP pipe main body deforms is avoided, and the use stability of the PP pipe main body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PP pipes, in particular to a PP pipe capable of preventing aging and deformation of joints. Background Art

[0002] PP pipe is a non-toxic, hygienic, high-temperature resistant and recyclable pipe type. It is mainly used in indoor hot and cold water supply systems in buildings and is also widely used in heating systems.

[0003] The joints of PP pipes are connected by threads, which makes it convenient to connect PP pipes with external pipes. However, most of the current PP pipes are made of polypropylene, which has average strength. As a result, the threaded joints of PP pipes are easily deformed after being squeezed, which causes the threads to deform. This can cause the threads of the external pipe to be unable to tightly engage with the threads of the PP pipe, reducing the stability of the PP pipe. For this reason, we need to propose a PP pipe that prevents aging and deformation at the joints. Utility Model Content

[0004] The purpose of the utility model is to provide a PP pipe that can prevent aging and deformation of the joints, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a PP pipe for preventing aging and deformation at the joint, comprising:

[0006] A PP pipe body, wherein the outer wall of the PP pipe body is provided with a connecting mechanism;

[0007] A reinforcing mechanism is arranged inside the PP pipe body, and includes a plurality of strip ribs, which are fixedly connected to the inner wall of the PP pipe body at intervals, and a plurality of annular ribs are fixedly connected between adjacent two strip ribs, and the outer walls of the annular ribs are fixedly connected to the inner wall of the PP pipe body.

[0008] Preferably, the connecting mechanism includes an external thread groove, and the external thread groove is opened at the end of the PP pipe body.

[0009] Preferably, the PP pipe body includes an inner layer, a middle layer and an outer layer, the middle layer is arranged on the outer wall of the inner layer, and the outer layer is arranged on the outer wall of the middle layer.

[0010] Preferably, the material of the inner layer is polypropylene, and the thickness of the inner layer is 0.5 mm-2 mm.

[0011] Preferably, the material of the middle layer is polyethylene, and the thickness of the middle layer is 1 mm to 3 mm.

[0012] Preferably, the material of the outer layer is polyolefin copolymer, and the thickness of the outer layer is 0.5 mm-2 mm.

[0013] Technical effects and advantages of this utility model:

[0014] The utility model utilizes the arrangement of annular ribs and strip ribs, and connects adjacent annular ribs through the strip ribs, so that after the outer wall of the PP tube body is squeezed, the squeezing force will be transmitted to the annular ribs. Since the annular rib between the two strip ribs is shorter, the deformation space of the annular ribs is smaller, which makes it difficult for the annular ribs to deform, so that the squeezed PP tube body will not be deformed, thereby avoiding the phenomenon that the joint position of the PP tube body is deformed and cannot be connected to the external tube, thereby improving the stability of the PP tube body in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the front structure of the strip rib of the utility model.

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the strip rib of the utility model.

[0018] Figure 4 This is a schematic diagram of the partial cross-sectional structure of the PP pipe main body of the utility model.

[0019] In the figure: 101, PP pipe body; 201, annular rib; 203, strip rib; 301, external thread groove; 401, inner layer; 402, middle layer; 403, outer layer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The utility model provides Figure 1-Figure 4The PP pipe shown here is a method of preventing aging and deformation at the joint, comprising a PP pipe body 101 and a reinforcement mechanism. The outer wall of the PP pipe body 101 is provided with a connection mechanism, which includes an external thread groove 301. The external thread groove 301 is provided at the end of the PP pipe body 101, and the inner wall of the external pipe is provided with an internal thread groove. The PP pipe body 101 is connected to the external pipe by inserting one end of the PP pipe body 101 with the external thread groove 301 into the position of the internal thread groove of the external pipe, and rotating the PP pipe body 101 so that the external thread groove 301 engages with the internal thread groove of the external pipe. A limiting ring can also be fixedly mounted on the outer wall of the PP tube body 101, so that after the external tube is connected to the PP tube body 101, the external tube will rest against the limiting ring, thereby limiting the position of the external tube. A rubber pad can also be set between the external tube and the limiting ring. When the external tube is connected to the PP tube body 101, the external tube and the limiting ring squeeze the rubber pad, thereby sealing the external tube and the PP tube body 101 through the rubber pad, making it less likely for water to leak between the PP tube body 101 and the external tube, further improving the stability of the PP tube body 101 during use.

[0022] In a preferred embodiment, the reinforcing mechanism is arranged inside the PP tube body 101, and the reinforcing mechanism includes a plurality of strip ribs 203, and the plurality of strip ribs 203 are fixedly connected to the inner wall of the PP tube body 101 at intervals. A plurality of annular ribs 201 are fixedly connected between two adjacent strip ribs 203. The outer wall of the annular rib 201 is fixedly connected to the inner wall of the PP tube body 101. The adjacent annular ribs 201 are connected by the strip ribs 203, so that when the outer wall of the PP tube body 101 is squeezed, the squeezing force will be transmitted to the annular rib 201. Since the annular rib 201 between the two strip ribs 203 is shorter, the annular rib 201 The deformation space of the rib 201 is small, so that the annular rib 201 is not easy to deform, so that the squeezed PP pipe body 101 will not be deformed, thereby avoiding the phenomenon that the joint position of the PP pipe body 101 is deformed and cannot be connected to the external pipe, thereby improving the stability of the PP pipe body 101. The position of the strip rib 203 corresponds to the position of the external thread groove 301, so that the strip rib 203 and the annular rib 201 can effectively strengthen the protection of the position of the PP pipe body 101 where the external thread groove 301 is opened, ensuring that the PP pipe body 101 can be stably connected to the external pipe.

[0023] Among them, the PP pipe body 101 includes an inner layer 401, a middle layer 402 and an outer layer 403. The middle layer 402 is arranged on the outer wall of the inner layer 401, and the outer layer 403 is arranged on the outer wall of the middle layer 402. The PP pipe body 101 is arranged into a composite layer structure consisting of the inner layer 401, the middle layer 402 and the outer layer 403, so that the PP pipe body 101 has higher strength and is less prone to deformation.

[0024] The inner layer 401 is made of polypropylene, and the thickness of the inner layer 401 is 0.5 mm to 2 mm. The interior of the inner layer 401 is in direct contact with the liquid in the PP pipe body 101. Polypropylene is a non-polar crystalline alkane polymer with good chemical corrosion resistance. At room temperature, it is insoluble in any solvent and exhibits strong chemical stability. This stability enables polypropylene to resist the erosion of a variety of chemicals, including acids, alkalis, solvents and various salts. At the same time, polypropylene can also resist most chemicals except strong oxidants, concentrated sulfuric acid and concentrated nitric acid, which further enhances its corrosion resistance. Polypropylene is very good in acid and alkali environments. It shows good stability in the environment. It has high stability to neutral and weak acid and alkali solutions and can withstand the erosion of many common acids and alkalis. Although strong acids and strong alkalis may cause certain corrosion to polypropylene, under normal pH conditions, polypropylene can maintain good corrosion resistance. Polypropylene also has excellent gas and moisture barrier properties and can effectively prevent the penetration of external gas and moisture. This barrier property helps to reduce the risk of corrosion and damage to internal objects, thereby extending the service life of polypropylene products, so that the PP pipe body 101 is not easily corroded by the liquid transported therein, thereby extending the service life of the PP pipe body 101.

[0025] Among them, the material of the middle layer 402 is polyethylene, and the thickness of the middle layer 402 is 1 mm to 3 mm. The molecular chain structure of polyethylene makes it chemically stable and not easily corroded by chemical substances in the environment. Some additives such as antioxidants, UV absorbers or stabilizers can be added to the polyethylene. These additives can effectively absorb ultraviolet rays and prevent photodegradation, thereby improving weather resistance. The molecular weight and crystallinity of the modified polymer can be adjusted to improve the strength and toughness of the material, which makes the material less prone to aging and deformation under various environmental conditions.

[0026] Among them, the material of the outer layer 403 is polyolefin copolymer, and the thickness of the outer layer 403 is 0.5 mm-2 mm. Polyolefin copolymers usually have a more complex molecular structure, which can improve the strength and toughness of the material and reduce the possibility of embrittlement, thereby extending the service life. High-temperature resistant polyolefin copolymers maintain good physical and chemical properties in high temperature environments and can resist aging caused by thermal oxidation, thereby reducing deformation caused by thermal stress. These copolymers usually add ultraviolet absorbers and antioxidants to effectively absorb and consume ultraviolet energy to prevent the material from degrading due to light and oxygen. The low moisture permeability of polyolefin copolymers can reduce the penetration of moisture and harmful substances, thereby reducing the impact of environmental factors on the material and slowing down the aging process. Copolymers usually have good resistance to a variety of chemical substances and can prevent material degradation caused by chemical reactions, thereby effectively avoiding the aging of the PP pipe body 101 and extending the service life of the PP pipe body 101.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PP pipe that prevents aging and deformation at the joint, characterized in that: include: A PP pipe body (101), wherein the outer wall of the PP pipe body (101) is provided with a connection mechanism; A reinforcing mechanism is provided inside a PP pipe body (101), comprising a plurality of strip ribs (203), the plurality of strip ribs (203) being fixedly connected to the inner wall of the PP pipe body (101) at intervals, a plurality of annular ribs (201) being fixedly connected at intervals between two adjacent strip ribs (203), and the outer wall of the annular rib (201) being fixedly connected to the inner wall of the PP pipe body (101).

2. A PP pipe for preventing aging and deformation of joints according to claim 1, characterized in that: The connection mechanism comprises an external thread groove (301), and the external thread groove (301) is opened at the end of the PP pipe body (101).

3. The PP pipe for preventing aging and deformation of joints according to claim 1, characterized in that: The PP pipe body (101) comprises an inner layer (401), a middle layer (402) and an outer layer (403), wherein the middle layer (402) is arranged on the outer wall of the inner layer (401), and the outer layer (403) is arranged on the outer wall of the middle layer (402).

4. A PP pipe for preventing aging and deformation of joints according to claim 3, characterized in that: The material of the inner layer (401) is polypropylene, and the thickness of the inner layer (401) is 0.5 mm to 2 mm.

5. The PP pipe for preventing aging and deformation of joints according to claim 3, characterized in that: The material of the middle layer (402) is polyethylene, and the thickness of the middle layer (402) is 1 mm to 3 mm.

6. The PP pipe for preventing aging and deformation of joints according to claim 3, characterized in that: The material of the outer layer (403) is polyolefin copolymer, and the thickness of the outer layer (403) is 0.5 mm to 2 mm.

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