Injection molding integrally-formed steel-plastic adapter
By setting a limit ring and annular rubber gasket in the middle of the adapter of the steel-plastic composite pipe fittings, and using internal and external threaded connections and screw connections, the problem of poor sealing performance of the steel-plastic composite pipe fittings in the prior art is solved, and higher tightness and stability are achieved.
Patent Information
- Application Number
- CN202421522430.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-01
AI Technical Summary
Existing steel-plastic composite pipe fittings have fine gaps and processing defects at the conversion head, resulting in poor sealing performance and leakage problems.
By providing a limiting ring in the middle of the adapter and embedded annular rubber gaskets in the limiting ring, combining the internal and external threaded connections and the screw connection between the steel strip layer and the plastic pipe layer, the tightness and stability of the pipeline connection are improved.
It effectively improves the tightness and stability of pipeline connections, reduces the risk of leakage, and improves the sealing performance of steel-plastic composite pipe fittings.
Smart Images
Figure CN222811401U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of joint conversion, and in particular relates to an injection-molded integrally formed steel-plastic conversion joint. Background Art
[0002] The plastic pipe fittings and steel conversion heads of the steel-plastic composite pipe fittings are an integrated structure of composite welding, but there will still be a slight gap between the two, and sometimes composite processing defects will inevitably occur, resulting in leakage. Therefore, the sealing performance of existing steel-plastic composite pipe fittings needs to be improved. Utility Model Content
[0003] In order to solve the problems existing in the prior art, the utility model provides an injection-molded one-piece steel-plastic conversion joint which is connected by internal and external threads and is threadedly connected to the steel belt layer and the plastic pipe layer respectively, thereby improving the tightness of the pipeline connection. A limiting ring is provided in the middle of the conversion joint, and an annular rubber gasket is provided inside the limiting ring, thereby further improving the tightness and stability of the pipeline.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection-molded one-piece steel-plastic conversion joint, comprising a pipe body and an adapter, the adapter is integrally formed, and the inner layer of the adapter is provided with an epoxy resin layer, steel strip layer threaded portions and plastic layer threaded portions are provided at both ends of the pipe body, a limiting ring is provided in the middle of the adapter, an annular rubber gasket is provided in the limiting ring, and plastic pipe internal threads and steel strip pipe internal threads that are compatible with the steel strip layer threaded portions and the plastic layer threaded portions are provided on both sides of the limiting ring.
[0005] Compared with the prior art, the beneficial effects of the utility model are:
[0006] It is connected through internal and external threads, and is screwed to the steel belt layer and the plastic pipe layer respectively, which improves the tightness of the pipeline connection. A limiting ring is provided in the middle of the adapter, and an annular rubber gasket is provided inside the limiting ring, which further improves the tightness and stability of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a schematic diagram of the structure of the utility model.
[0008] Figure 2 It is a schematic diagram of the cross-sectional structure of the adapter of the utility model.
[0009] In the figure: 1 pipe body, 2 steel strip layer threaded portion, 3 plastic layer threaded portion, 4 adapter, 5 limit ring, 6 plastic pipe internal thread, 7 steel strip pipe internal thread, 8 annular rubber gasket. DETAILED DESCRIPTION
[0010] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0011] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example
[0012] See attached Figure 1 As shown, an injection molded one-piece steel-plastic conversion joint includes a pipe body 1 and an adapter 4, the adapter 4 is integrally molded, and the inner layer of the adapter 4 is provided with an epoxy resin layer, both ends of the pipe body 1 are provided with a steel strip layer threaded portion 2 and a plastic layer threaded portion 3, a limiting ring 5 is provided in the middle of the adapter 4, an annular rubber gasket 8 is provided in the limiting ring 5, and plastic pipe internal threads 6 and steel strip pipe internal threads 7 that are compatible with the steel strip layer threaded portion 2 and the plastic layer threaded portion 3 are provided on both sides of the limiting ring 5.
[0013] Working principle: It is connected through internal and external threads, and is screwed to the steel belt layer and the plastic pipe layer respectively, which improves the tightness of the pipeline connection. A limiting ring 5 is provided in the middle of the adapter 4, and an annular rubber gasket 8 is provided inside the limiting ring 5, which further improves the tightness and stability of the pipeline.
[0014] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.
[0015] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. An injection molded one-piece steel-plastic conversion joint, comprising a pipe body and a conversion joint, characterized in that: The adapter is integrally formed, and the inner layer of the adapter is provided with an epoxy resin layer, the two ends of the pipe body are provided with steel belt layer threaded portions and plastic layer threaded portions, a limiting ring is provided in the middle of the adapter, an annular rubber gasket is provided in the limiting ring, and plastic pipe internal threads and steel belt pipe internal threads that are compatible with the steel belt layer threaded portions and the plastic layer threaded portions are provided on both sides of the limiting ring.