Multipurpose composite pipe fitting

Abstract

The utility model discloses a multi-purpose composite pipe fitting which comprises an outer layer injection molding piece, an inner layer injection molding piece, a first connecting piece and a second connecting piece, and the inner-layer injection molding part is attached to the outer-layer injection molding part and arranged in the first channel, the inner-layer injection molding part is provided with a second channel, and fluid can flow in the second channel. The outer-layer injection-molded part and the inner-layer injection-molded part are formed through injection molding in different injection molding procedures, and base materials of the outer-layer injection-molded part and / or the inner-layer injection-molded part can be adjusted conveniently according to use requirements.

Description

Technical Field

[0001] This utility model relates to the field of pipe fittings, and further to a multi-purpose composite pipe fitting. Background Technology

[0002] Pipe fittings are widely used structural components in both daily life and industry, such as various conveying pipelines and connectors, providing great convenience to both.

[0003] Currently, most common pipe fittings are manufactured using a one-time injection molding process, with materials such as plastic and stainless steel being commonly used. Existing pipe fittings typically use only one type of base material. Different parts of the pipe fitting have different functional requirements, but using the same material makes it difficult to adjust according to usage needs, resulting in unmet requirements and even waste of base material. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide a multi-purpose composite pipe fitting in which the outer injection molded part and the inner injection molded part are injection molded in different injection molding processes, making it convenient to adjust the base material of the outer injection molded part and / or the inner injection molded part according to usage requirements.

[0005] To achieve the above objectives, the present invention aims to provide a multi-purpose composite pipe fitting, comprising:

[0006] An outer injection molded part, the outer injection molded part having a first channel;

[0007] An inner injection molded part is disposed within the first channel and attached to the inner wall of the outer injection molded part. The inner injection molded part has a second channel in which fluid can flow.

[0008] In some embodiments of this application, the outer injection molded part has an injection hole communicating with the first channel at a preset position, and a portion of the inner injection molded part is located within the injection hole.

[0009] In some embodiments of this application, the multipurpose composite pipe fitting has at least two open ends, each of which has an opening communicating with the second channel. The end of the outer injection molded part near the open end and connected to the inner injection molded part has an annular notch, and a portion of the inner injection molded part near the open end extends into the annular notch.

[0010] In some embodiments of this application, the outer injection molded part has an annular bottom wall and an annular side wall at the location where the annular notch is formed. The outer injection molded part also includes an annular arm extending from the annular bottom wall toward the opening end. An annular groove is formed between the annular arm and the annular side wall. The portion of the inner injection molded part near the opening end extends into the annular groove.

[0011] In some embodiments of this application, the outer injection molded part has an annular limiting protrusion extending away from the inner injection molded part near the opening end.

[0012] In some embodiments of this application, the inner layer injection molded part has an annular cross-section on the inner side of the end near the opening end, such that the diameter of the second channel is larger the closer it is to the opening end.

[0013] In some embodiments of this application, the multipurpose composite fitting further includes a reinforcing skeleton located within the outer injection molded part and / or the inner injection molded part.

[0014] In some embodiments of this application, the reinforcing skeleton is a perforated mesh skeleton.

[0015] In some embodiments of this application, the injection molding material of the outer injection molded part includes resin or plastic, wherein the resin includes at least one of polyethylene, polyvinyl chloride, polystyrene, polypropylene, and acrylonitrile-butadiene-styrene copolymer.

[0016] In some embodiments of this application, the injection molding material of the inner injection molded part includes at least one of antibacterial materials, wear-resistant materials, and high-temperature resistant materials;

[0017] The antibacterial material includes at least one of silicate soluble glass silver-loaded antibacterial agent, zirconium phosphate silver-loaded antibacterial agent, and zeolite silver / zinc composite antibacterial agent.

[0018] The wear-resistant material includes at least one of high manganese steel, wear-resistant alloy steel, alumina ceramic, silicon carbide ceramic, and zirconium oxide ceramic;

[0019] The high-temperature resistant material includes at least one of alumina, zirconium oxide, silicon carbide, silicon nitride, nickel-based alloys, and cobalt-based alloys.

[0020] Beneficial effects:

[0021] 1. In the multi-purpose composite pipe fitting provided in this application, the outer injection molded part and the inner injection molded part are injection molded in different injection molding processes, which makes it easy to adjust the base material of the outer injection molded part and / or the inner injection molded part according to the usage requirements;

[0022] 2. In the multi-purpose composite pipe fitting provided in this application, after the inner injection molded part is formed by injection molding through the injection hole, part of the substrate forming the inner injection molded part will enter the injection hole to form a limiting arm. The limiting arm is integrally connected with the inner injection molded part, which can increase the stability of the relative position between the inner injection molded part and the outer injection molded part.

[0023] 3. In the multi-purpose composite pipe fitting provided in this application, the end of the outer injection molded part near the open end and connected to the inner injection molded part has an annular notch, and a portion of the inner injection molded part near the open end extends into the annular notch, which can enhance the stability of the relative position between the outer injection molded part and the inner injection molded part.

[0024] 4. In the multi-purpose composite pipe fitting provided in this application, the injection molding material of the inner injection molded part includes at least one of antibacterial material, wear-resistant material, and high-temperature resistant material, so that the inner injection molded part has at least one of antibacterial function, wear-resistant function, and high-temperature resistant function. Attached Figure Description

[0025] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0026] Figure 1 This is a three-dimensional structural diagram of a multi-purpose composite pipe fitting according to a preferred embodiment of the present invention;

[0027] Figure 2 This is an exploded structural diagram of a preferred embodiment of the multipurpose composite pipe fitting of this utility model;

[0028] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure of line AA in the middle;

[0029] Figure 4 This is a manufacturing flow chart of a preferred embodiment of the multipurpose composite pipe fitting of this utility model;

[0030] Figure 5 This is a perspective view of a modified embodiment of the multipurpose composite pipe fitting, which is a preferred embodiment of the present invention.

[0031] Figure 6 yes Figure 5 An exploded view of the preferred embodiment of the multipurpose composite pipe fitting shown in the diagram.

[0032] Figure 7 This is a perspective view of another modified embodiment of the multipurpose composite pipe fitting, which is a preferred embodiment of the present invention.

[0033] Figure 8 yes Figure 7The diagram shows an exploded view of the multipurpose composite pipe fitting of the preferred embodiment.

[0034] Attached icon number

[0035] Multipurpose composite pipe fitting 100, outer injection molded part 10, first channel 11, injection hole 12, annular bottom wall 131, annular side wall 132, annular arm 14, annular groove 140, annular limiting protrusion 15, inner injection molded part 20, second channel 21, limiting arm 22, annular notch 13, annular cut surface 24, protrusion 25, open end 30, opening 31, connector 40, reinforcing skeleton 50. Detailed Implementation

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0037] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0038] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0039] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] Reference manual attached Figures 1 to 4This application provides a multi-purpose composite pipe fitting 100, which includes an outer injection molded part 10 and an inner injection molded part 20. The inner injection molded part 20 is disposed on the inner surface of the outer injection molded part 10, serving as its inner lining structure. In this application, the outer injection molded part 10 and the inner injection molded part 20 are injection molded in two injection molding processes, or they are injection molded sequentially in two separate injection molding processes, allowing the injection substrate to be adjusted according to different injection positions.

[0042] The outer injection molded part 10 has a first channel 11; the inner injection molded part 20 is disposed within the first channel 11 and attached to the inner wall of the outer injection molded part 10, and the inner injection molded part 20 has a second channel 21 in which fluid can flow. It should be noted that the multi-purpose composite pipe fitting 100 provided in this application is applicable to various application scenarios. For example, the fluid can be gas, water, oil, or a mixture of liquid and fine particulate matter. In other words, the multi-purpose composite pipe fitting 100 provided in this application is applicable to various scenarios and has various uses. Specific application scenarios should not constitute a limitation of this application.

[0043] Preferably, both the outer injection molded part 10 and the inner injection molded part 20 are tubular structures, the diameter of the inner injection molded part 20 is adapted to the diameter of the first channel 11 of the outer injection molded part 10, and the outer surface of the inner injection molded part 20 is closely attached to the inner wall of the outer injection molded part 10.

[0044] refer to Figure 3 The outer injection molded part 10 has an injection hole 12 communicating with the first channel 11 at a preset position, and a part of the inner injection molded part 20 is located in the injection hole 20.

[0045] In this application, the outer injection molded part 10 is first injection molded, and then the inner injection molded part 20 is formed by injection molding into the first channel 11 through the injection hole 12. It is understood that in some modified embodiments, the inner injection molded part 20 can be injection molded first, and then the outer injection molded part 10 can be formed by injection molding on the outside of the inner injection molded part 20.

[0046] Specifically, the process of first injection molding the outer injection molded part 10 and then injection molding the inner injection molded part 20 into the first channel 11 through the injection hole 12 is as follows: First, the outer injection molded part 10 is injection molded using a mold. After the outer injection molded part 10 cools and solidifies, the injection hole 12 is formed by perforating at a preset position on the outer injection molded part 10. Then, a suitable mold is placed into the first channel 11, and the inner injection molded part 20 is formed by injection molding into the first channel 11 through the injection hole 12.

[0047] It should be noted that after the inner injection molded part 20 is formed by injection molding through the injection hole 12, a portion of the substrate forming the inner injection molded part 20 enters the injection hole 12 to form a limiting arm 22. The limiting arm 22 is integrally connected to the inner injection molded part 20, which can increase the stability of the relative position between the inner injection molded part 20 and the outer injection molded part 10. It is understood that the number of injection holes 12 can be implemented as two or more according to injection molding needs, and they are distributed at different positions of the outer injection molded part 10 to improve injection molding efficiency. Correspondingly, as the number of injection holes 12 increases, the number of limiting arms 22 formed during the injection molding process of the inner injection molded part 20 also increases accordingly, which can further enhance the stability of the relative position between the inner injection molded part 20 and the outer injection molded part 10.

[0048] Understandably, during the injection molding process, the tip of the limiting arm 22 extends to the outside of the outer injection molded part 10. The operator can cut off the portion of the tip of the limiting arm 22 extending to the outside of the outer injection molded part 10 to give the outer injection molded part 10 a relatively flat outer surface. It should also be noted that during the injection molding process of the outer injection molded part 10, there is also an opening for injecting external substrate. The position of the injection hole 12 corresponds to the position of the injection opening for external substrate during the injection molding process of the outer injection molded part 10. In other words, the injection hole 12 is located at the position of the injection opening for external substrate during the injection molding process of the outer injection molded part 10.

[0049] refer to Figure 3 The multi-purpose composite pipe fitting 100 has at least two open ends 30, each of which has an opening 31 communicating with the second channel 21. The outer injection molded part 10 has an annular notch 13 at its end near the open end 20 and connected to the inner injection molded part 20. A portion of the inner injection molded part 20 near the open end 30 extends into the annular notch 13, enhancing the stability of the relative position between the outer injection molded part 10 and the inner injection molded part 20. Specifically, the end of the inner injection molded part 20 near the open end 30 has a protrusion 25 located within the annular notch 13.

[0050] Furthermore, the outer injection molded part 10 has an annular bottom wall 131 and an annular side wall 132 at the location where the annular notch 13 is formed. The outer injection molded part 10 also includes an annular arm 14 extending from the annular bottom wall 131 toward the opening end 30. An annular groove 140 is formed between the annular arm 14 and the annular side wall 132. A portion of the inner injection molded part 20 near the opening end 30 extends into the annular groove 140. It is understood that the portion of the inner injection molded part 20 entering the annular groove 140 can engage with the annular arm 14, improving the structural strength of the connection between the inner injection molded part 20 and the outer injection molded part 10.

[0051] refer to Figure 3 The outer injection-molded part 10 has an outwardly extending annular limiting protrusion 15 near the opening end 30, extending outwards in a direction away from the inner injection-molded part 20. The opening end 30 of the multi-purpose composite pipe fitting 100 is connected to a connector 40, which allows the multi-purpose composite pipe fitting 100 to be fixedly connected to other pipes or fittings. The annular limiting protrusion 15 provides a limit for the connector 40, improving the stability of the relative position between the connector 40 and the multi-purpose composite pipe fitting 100. Preferably, the connector 40 is a flange, for example, but not limited to, an open-loop slip flange, a flat flange, etc. It is understood that, depending on the connector 40, the surface of the annular limiting protrusion 15 that contacts the connector 40 can be either perpendicular to the outer surface of the outer injection-molded part 10 or inclined relative to the outer surface of the outer injection-molded part 10.

[0052] refer to Figure 3 The inner injection molded part 20 has an annular cut surface 24 on the inner side of the end near the opening end 30, so that the diameter of the second channel 21 is larger the closer to the opening end 30, thereby facilitating the connection of the multi-purpose composite pipe fitting 100 with the external pipe.

[0053] refer to Figures 1 to 4 In this application, the multi-purpose composite pipe fitting 100 has three open ends 30, meaning that the multi-purpose composite pipe fitting 100 is a tee connector. (Reference) Figure 5 and Figure 7 In a modified embodiment, the number of open ends 30 of the multipurpose composite pipe fitting 100 can also be two. In this case, the multipurpose composite pipe fitting 100 can be as follows: Figure 5 and Figure 6 The straight pipe shown can also be as follows: Figure 7 and Figure 8 The bend shown.

[0054] refer to Figure 2 and Figure 3 The multipurpose composite pipe fitting 100 further includes a reinforcing skeleton 50 located within the outer injection molded part 10 and / or the inner injection molded part 20. The reinforcing skeleton 50 improves the structural strength of the outer injection molded part 10 and / or the inner injection molded part 20, thereby increasing the structural strength of the multipurpose composite pipe fitting 100. In the specific manufacturing process, before injection molding the outer injection molded part 10 and / or the inner injection molded part 20, the reinforcing skeleton 50 is first placed within the molding space of the mold, and then the substrate is injected into the mold, causing the substrate to encapsulate the reinforcing skeleton 50. Preferably, the reinforcing skeleton 50 is a perforated mesh skeleton, the main body of which has a large number of mesh openings to facilitate the flow of the substrate during injection molding. The material of the reinforcing skeleton 50 is preferably stainless steel, but in some embodiments it can also be synthetic fiber. The specific material of the reinforcing skeleton 50 should not constitute a limitation of this application.

[0055] Preferably, the injection molding material of the outer injection molded part 10 includes resin or plastic, and the resin includes at least one of polyethylene, polyvinyl chloride, polystyrene, polypropylene, and acrylonitrile-butadiene-styrene copolymer.

[0056] Preferably, the injection molding material of the inner injection molded part 20 includes at least one of antibacterial material, wear-resistant material, and high-temperature resistant material; the antibacterial material includes at least one of silicate-soluble glass silver-loaded antibacterial agent, zirconium phosphate silver-loaded antibacterial agent, and zeolite silver / zinc composite antibacterial agent; the wear-resistant material includes at least one of high manganese steel, wear-resistant alloy steel, alumina ceramic, silicon carbide ceramic, and zirconium oxide ceramic; the high-temperature resistant material includes at least one of alumina, zirconium oxide, silicon carbide, silicon nitride, nickel-based alloy, and cobalt-based alloy. It is understood that because at least one of antibacterial material, wear-resistant material, and high-temperature resistant material is added to the inner injection molded part 20, the inner injection molded part 20 correspondingly possesses at least one of the following properties: antibacterial effect, wear-resistant effect, and high-temperature resistant effect.

[0057] refer to Figure 4 The specific manufacturing process of the multi-purpose composite pipe fitting 100 provided in this application is as follows: First, the reinforcing skeleton 50 is placed in the mold, and the substrate is injected into the mold to form the outer injection molded part 10; after the outer injection molded part 10 is formed, the mold is removed and a hole is punched in the preset position of the outer injection molded part 10 to form the injection hole 12; after a suitable mold is set in the first channel 11 of the outer injection molded part 10, the substrate is injected into the first channel 11 through the injection hole 12 to form the inner injection molded part 20; after the inner injection molded part 20 is cooled and formed, the corresponding mold is removed.

[0058] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A multi-purpose composite pipe fitting, characterized in that, include: An outer injection molded part, the outer injection molded part having a first channel; An inner injection molded part is disposed within the first channel and attached to the inner wall of the outer injection molded part. The inner injection molded part has a second channel in which fluid can flow.

2. The multi-purpose composite pipe fitting according to claim 1, characterized in that, The outer injection molded part has an injection hole at a preset position that communicates with the first channel, and a portion of the inner injection molded part is located inside the injection hole.

3. The multi-purpose composite pipe fitting according to claim 2, characterized in that, The multipurpose composite pipe fitting has at least two open ends, each of which has an opening communicating with the second channel. The end of the outer injection molded part near the open end and connected to the inner injection molded part has an annular notch, and the portion of the inner injection molded part near the open end extends into the annular notch.

4. The multi-purpose composite pipe fitting according to claim 3, characterized in that, The outer injection molded part has an annular bottom wall and an annular side wall at the location where the annular notch is formed. The outer injection molded part also includes an annular arm extending from the annular bottom wall toward the opening end. An annular groove is formed between the annular arm and the annular side wall. The portion of the inner injection molded part near the opening end extends into the annular groove.

5. The multi-purpose composite pipe fitting according to claim 3, characterized in that, The outer injection molded part has an annular limiting protrusion extending away from the inner injection molded part near the opening end.

6. The multi-purpose composite pipe fitting according to claim 3, characterized in that, The inner layer injection molded part has an annular sectional surface on the inner side of the end near the opening end, so that the diameter of the second channel is larger the closer it is to the opening end.

7. The multipurpose composite pipe fitting according to any one of claims 1 to 6, characterized in that, The multipurpose composite pipe fitting further includes a reinforcing skeleton located within the outer injection molded part and / or the inner injection molded part.

8. The multi-purpose composite pipe fitting according to claim 7, characterized in that, The reinforcing skeleton is a perforated mesh plate skeleton.

9. The multi-purpose composite pipe fitting according to claim 7, characterized in that, The injection molding material of the outer injection molded part includes resin or plastic, and the resin includes at least one of polyethylene, polyvinyl chloride, polystyrene, polypropylene, and acrylonitrile-butadiene-styrene copolymer.

10. The multi-purpose composite pipe fitting according to claim 7, characterized in that, The injection molding material of the inner injection molded part includes at least one of antibacterial materials, wear-resistant materials, and high-temperature resistant materials; The antibacterial material includes at least one of silicate soluble glass silver-loaded antibacterial agent, zirconium phosphate silver-loaded antibacterial agent, and zeolite silver / zinc composite antibacterial agent. The wear-resistant material includes at least one of high manganese steel, wear-resistant alloy steel, alumina ceramic, silicon carbide ceramic, and zirconium oxide ceramic; The high-temperature resistant material includes at least one of alumina, zirconium oxide, silicon carbide, silicon nitride, nickel-based alloys, and cobalt-based alloys.

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