A kind of anti-deformation recyclable PVC pipe fitting

Abstract

The utility model relates to the technical field of PVC pipe fittings. The application discloses an anti-deformation and recyclable PVC pipe fitting, comprising a PVC pipe body. The PVC pipe body comprises an anti-corrosion and heat-insulating layer, a rigid polyvinyl chloride pipe body layer, a polypropylene pipe body supporting layer, a soft polyvinyl chloride pipe body layer and an anti-oxidation and anti-corrosion coating. The inner surface of the rigid polyvinyl chloride pipe body layer is coated with an anti-corrosion and heat-insulating layer, and the outer surface of the rigid polyvinyl chloride pipe body layer is fixed with a polypropylene pipe body supporting layer. The utility model cooperates with the polypropylene pipe body supporting layer and the rigid polypropylene mesh supporting layer. When in normal use, the utility model can provide a stronger support to the PVC pipe body. With the soft buffer of the polypropylene pipe body supporting layer outside the polypropylene pipe body supporting layer, part of the pressure can be released first when squeezed to avoid direct deformation inside the PVC pipe body, thereby solving the problem that the existing PVC pipe fittings are easily deformed after being compressed and affect the circulation, and greatly improving the stability of the PVC pipe body when in use.

Description

Technical Field

[0001] The utility model application relates to the technical field of PVC pipe fittings, in particular to a deformation-resistant and recyclable PVC pipe fitting. Background Art

[0002] PVC pipe fittings are made of polyvinyl chloride resin, stabilizers, lubricants, etc., and are extruded by hot pressing. They are the earliest plastic pipes developed and applied. They have been well received by the engineering community for their light weight, corrosion resistance, high compressive strength, safety and convenience. They are widely used in the transportation of drainage, wastewater, chemicals, heating and cooling liquids, food, ultra-pure liquids, mud, gas, compressed air and vacuum systems.

[0003] Due to the limitations of the material and limited strength of PVC pipes, they are prone to deformation when subjected to high external pressure during use. After deformation, the flow of the internal solution will be affected, or even directly cause the flow to be unable to pass, resulting in limited stability of PVC pipes during use. Summary of the invention

[0004] In order to solve the problem that the existing PVC pipe fittings are easily deformed after being compressed and affect the circulation, the utility model provides an anti-deformation and recyclable PVC pipe fitting to solve the above problem.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A deformation-resistant and recyclable PVC pipe fitting comprises a PVC pipe body, wherein the PVC pipe body comprises an anti-corrosion and heat-insulating layer, a rigid polyvinyl chloride pipe body layer, a polypropylene pipe body supporting layer, a soft polyvinyl chloride pipe body layer and an anti-oxidation and anti-corrosion coating, wherein the inner surface of the rigid polyvinyl chloride pipe body layer is coated with an anti-corrosion and heat-insulating layer, the outer surface of the rigid polyvinyl chloride pipe body layer is fixed with a polypropylene pipe body supporting layer, the outer surface of the polypropylene pipe body supporting layer is wrapped and fixed with a soft polyvinyl chloride pipe body layer, and the outer surface of the soft polyvinyl chloride pipe body layer is coated with an anti-oxidation and anti-corrosion coating

[0007] Furthermore, the thickness of the anti-corrosion and thermal insulation layer is equal to the thickness of the anti-oxidation and anti-corrosion coating.

[0008] Furthermore, the thickness of the rigid polyvinyl chloride tube body layer is equal to the thickness of the soft polyvinyl chloride tube body layer.

[0009] Furthermore, a hard polypropylene mesh support layer is embedded and fixed inside the polypropylene tube body support layer.

[0010] Furthermore, the thickness of the rigid polypropylene grid support layer is smaller than the thickness of the polypropylene tube body support layer.

[0011] Furthermore, the thickness of the polypropylene tube body support layer is less than the thickness of the soft polyvinyl chloride tube body layer.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, the cooperation of the polypropylene tube body support layer and the hard polypropylene mesh support layer can provide a stronger support for the PVC tube body during normal use. The soft buffer of the polypropylene tube body support layer outside the polypropylene tube body support layer can release part of the pressure first when squeezed to avoid direct deformation of the inside of the PVC tube body, thus solving the problem that the existing PVC pipe fittings are easily deformed after being compressed and affect the circulation, and greatly improving the stability of the PVC tube body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a front view schematic diagram of a PVC pipe fitting structure according to an embodiment of the present application;

[0016] Figure 2 yes Figure 1 A schematic front cross-sectional view of the PVC pipe structure in the illustrated embodiment;

[0017] Figure 3 yes Figure 1 A schematic side cross-sectional view of the PVC pipe structure in the illustrated embodiment.

[0018] The meanings of the reference numerals in the figure are: 1. PVC pipe fitting body; 111. anti-corrosion and thermal insulation coating; 112. rigid polyvinyl chloride pipe body layer; 113. polypropylene pipe body support layer; 114. soft polyvinyl chloride pipe body layer; 115. antioxidant and anti-corrosion coating; 116. rigid polypropylene grid support layer. DETAILED DESCRIPTION

[0019] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] Reference Figure 1 , Figure 2 and Figure 3 A deformation-resistant and recyclable PVC pipe fitting comprises a PVC pipe body 1, wherein the PVC pipe body 1 comprises an anti-corrosion and heat-insulating layer 111, a rigid polyvinyl chloride pipe body layer 112, a polypropylene pipe body supporting layer 113, a soft polyvinyl chloride pipe body layer 114 and an anti-oxidation and anti-corrosion coating 115, wherein the inner surface of the rigid polyvinyl chloride pipe body layer 112 is coated with the anti-corrosion and heat-insulating layer 111, the outer surface of the rigid polyvinyl chloride pipe body layer 112 is fixed with a polypropylene pipe body supporting layer 113, a rigid polypropylene mesh supporting layer 116 is embedded and fixed inside the polypropylene pipe body supporting layer 113, and the polypropylene mesh supporting layer 116 is embedded and fixed inside the polypropylene pipe body supporting layer 113. The thickness of the polypropylene tube body support layer 113 is less than the thickness of the soft polyvinyl chloride tube body layer 114, the outer surface of the polypropylene tube body support layer 113 is wrapped and fixed with the soft polyvinyl chloride tube body layer 114, the thickness of the hard polyvinyl chloride tube body layer 112 is equal to the thickness of the soft polyvinyl chloride tube body layer 114, the outer surface of the soft polyvinyl chloride tube body layer 114 is coated with an antioxidant and anti-corrosion coating 115, the thickness of the anti-corrosion and thermal insulation layer 111 is equal to the thickness of the antioxidant and anti-corrosion coating 115, and the thickness of the hard polypropylene mesh support layer 116 is less than the thickness of the polypropylene tube body support layer 113.

[0021] Specifically, during normal use, the polypropylene tube body support layer 113 and the hard polypropylene grid support layer 116 cooperate to provide a stronger support force to the PVC tube body 1, so that the PVC tube body 1 is not easily deformed when under pressure. Furthermore, the melting temperature of the polypropylene tube body support layer 113 is 130-170°C, and the melting temperatures of the hard polyvinyl chloride tube body layer 112 and the soft polyvinyl chloride tube body layer 114 are 65-80°C. When the tube body is recycled, the tube body is heated to 65-80°C to melt the hard polyvinyl chloride tube body layer 112 and the polypropylene tube body support layer 113. After melting, the tube body can be recycled, and the polypropylene tube body support layer 113 and the hard polypropylene grid support layer 116 are separated. After separation, the polypropylene tube body support layer 113 and the hard polypropylene grid support layer 116 are heated to 130-170°C to recycle the polypropylene tube body support layer 113 and the hard polypropylene grid support layer 116.

[0022] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0023] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A deformation-resistant and recyclable PVC pipe fitting, comprising a PVC pipe body (1), characterized in that: The PVC pipe body (1) comprises an anti-corrosion and thermal insulation layer (111), a rigid polyvinyl chloride pipe body layer (112), a polypropylene pipe body support layer (113), a soft polyvinyl chloride pipe body layer (114) and an anti-oxidation and anti-corrosion coating (115); the inner surface of the rigid polyvinyl chloride pipe body layer (112) is coated with the anti-corrosion and thermal insulation layer (111); the outer surface of the rigid polyvinyl chloride pipe body layer (112) is fixed with the polypropylene pipe body support layer (113); the outer surface of the polypropylene pipe body support layer (113) is coated with the soft polyvinyl chloride pipe body layer (114); and the outer surface of the soft polyvinyl chloride pipe body layer (114) is coated with the anti-oxidation and anti-corrosion coating (115).

2. The anti-deformation recyclable PVC pipe fitting according to claim 1, characterized in that: The thickness of the anti-corrosion and thermal insulation layer (111) is equal to the thickness of the anti-oxidation and anti-corrosion coating (115).

3. The anti-deformation recyclable PVC pipe fitting according to claim 1, characterized in that: The thickness of the rigid polyvinyl chloride tube body layer (112) is equal to the thickness of the flexible polyvinyl chloride tube body layer (114).

4. The anti-deformation recyclable PVC pipe fitting according to claim 1, characterized in that: A hard polypropylene mesh support layer (116) is embedded and fixed inside the polypropylene tube body support layer (113).

5. The anti-deformation recyclable PVC pipe fitting according to claim 4, characterized in that: The thickness of the hard polypropylene mesh support layer (116) is smaller than the thickness of the polypropylene tube body support layer (113).

6. The anti-deformation recyclable PVC pipe fitting according to claim 1, characterized in that: The thickness of the polypropylene tube body support layer (113) is smaller than the thickness of the soft polyvinyl chloride tube body layer (114).

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