Plastic and stainless steel composite safety valve
By using a composite structure of plastic and stainless steel and an optimized internal leakage channel design, the problems of high cost, complex processing, and internal leakage whistling of traditional valve bodies have been solved, achieving a valve body effect of low cost, high precision, and low noise.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-26
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional valve bodies suffer from problems such as high cost, complex processing, and easy internal leakage and whistling. In addition, all-plastic valve bodies have insufficient pressure resistance and poor sealing performance. Existing improvement solutions are complex and costly.
It adopts a composite structure of plastic and stainless steel, and combines cold heading precision machining inserts with injection molding process to optimize the internal leakage channel design. The internal leakage components, including one-way valve core, silicone gasket, spring seat, internal leakage spring, filter screen and hexagonal nut, are installed in the stainless steel insert to prevent whistling sound caused by valve core vibration.
It achieves a low-cost, high-precision, and low-noise valve body design, significantly improving the internal leakage and whistling problem, and enhancing sealing performance and pressure resistance.
Smart Images
Figure CN224049755U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of water heating valve pipe fittings, especially to a plastic and stainless steel composite safety valve. BACKGROUND
[0002] Traditional valve bodies mostly adopt full metal structure, and have problems of high cost, complex processing, easy to produce internal leakage whistle and the like, partial improvement scheme adopts full plastic valve body injection molding process, but has problems of insufficient pressure resistance, poor sealing, insufficient thread connection strength and the like, partial improvement scheme alleviates noise by increasing damping structure, but process is complex and cost is high. Therefore, a valve body solution scheme with low cost, high precision and low noise characteristics is urgently needed, and therefore the applicant puts forward further improvement on this basis, designs a plastic and stainless steel composite safety valve to meet the needs of the existing market. SUMMARY
[0003] The utility model provides a plastic and stainless steel composite safety valve that can solve the above technical problems, which combines cold heading finishing inserts with injection molding process, reduces manufacturing cost, optimizes internal leakage passage structure design, suppresses fluid turbulence, and significantly improves internal leakage whistle problems.
[0004] To solve the above technical problems, the utility model provides the following technical scheme:
[0005] A plastic and stainless steel composite safety valve, characterized in that it comprises a plastic valve body and a stainless steel insert embedded in the plastic valve body, and an internal leakage assembly is installed in the stainless steel insert.
[0006] Further optimization of the utility model is that the stainless steel insert is integrally formed, an internal cavity for installing the internal leakage assembly is formed in the stainless steel insert, an internal thread inner wall is formed at one end of the internal cavity, an external thread is formed on the outer wall at the other end of the internal cavity, and an installation opening is formed in the internal cavity for positioning and installing the internal leakage assembly.
[0007] Further optimization of the utility model is that the internal leakage assembly comprises a one-way valve core, a silica gel gasket, a spring seat, an internal leakage spring, an internal leakage filter screen, an opening spring and a hexagonal nut; the one-way valve core is sleeved with the spring seat, the silica gel gasket is installed between the spring seat and the one-way valve core, the internal leakage spring is installed on the spring seat, the hexagonal nut is installed on the top of the spring seat for limiting, the hexagonal nut and the one-way valve core are connected by a nut, the opening spring is installed outside the spring seat, and the internal leakage filter screen is outside the opening spring.
[0008] Further optimization of the utility model is that a hexagonal surface is formed on the inner wall of the installation cavity of the spring seat, and the installation cavity is used for installing the internal leakage spring.
[0009] Compared with the prior art, the utility model has the beneficial effects that
[0010] The utility model discloses a plastic valve body and the stainless steel insert embedded in the plastic valve body, install the inner leakage component in the stainless steel insert, the stainless steel insert is integrally formed, and the through cavity for installing the inner leakage component is formed in the inside, the through cavity one end forms the internal thread inner wall, and the other end outer wall forms the external thread, install the installation mouth in the through cavity and be used for positioning installing the inner leakage component. Among them, the valve body main part adopts PA66 plastic injection molding, and the stainless steel 304 cold upsetting finishing insert is embedded in the inside, the inner leakage component is adjusted through the structure, is set through the valve core and the hexagon nut thread and the hexagon limit, prevents the howling sound caused by the left and right shaking of the valve core, therefore, the utility model solves the deficiency in the prior art, realizes the performance promotion. BRIEF DESCRIPTION OF DRAWINGS
[0011] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation on the utility model.
[0012] In the drawings:
[0013] Figure 1 It is the structural schematic diagram of the utility model.
[0014] Figure 2 It is the structural cross section schematic diagram of the utility model. PREFERRED EMBODIMENT
[0015] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described here are only used to explain and illustrate the utility model, and do not limit the utility model. EMBODIMENT
[0016] As Figure 1 And Figure 2The utility model discloses a plastic and stainless steel composite safety valve, characterized in that: including plastic valve body 1, and the stainless steel insert 2 of embedding in the inside of plastic valve body 1, install inner leak assembly in the inside of stainless steel insert 2, the stainless steel insert is integrally formed, and the through cavity 3 for installing inner leak assembly is formed inside, one end of through cavity 3 forms the internal thread inner wall 4, and the outer wall forms the external thread 5 at the other end, install the installation mouth 6 for positioning and installing the inner leak assembly and form in through cavity 3, the inner leak assembly includes check valve spool 7, silica gel gasket 13, spring seat 8, inner leak spring 9, inner leak filter screen 10, opening spring 11 and hexagon nut 12, the spring seat 8 is sleeved in check valve spool 7, install silica gel gasket 13 between spring seat 8 and check valve spool 7, install inner leak spring 9 on spring seat 8, the top of spring seat 8 is installed hexagon nut 12 and is limited, the hexagon nut 12 and check valve spool 7 are nut connection between, the opening spring 11 is installed outside spring seat 8, and the inner leak filter screen 10 is outside opening spring 11, the installation cavity inner wall of spring seat 8 forms the hexagonal surface, and the installation cavity is used for installing inner leak spring 11, and check valve spool 6 and hexagon nut 12 are connected through the thread, and two components are integrated, and then are assembled with spring seat 8, the hexagonal surface of hexagon nut and the hexagonal surface of spring seat are limited, prevent the whistling sound caused by the left and right shaking of valve core, and the combination place of stainless steel insert 2 and plastic valve body 1 adopts double-groove sealing design, and the sealing reliability is improved.
[0017] Finally, it should be noted that: the foregoing is only preferred embodiments of the utility model, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.
Claims
1. A composite safety valve made of plastic and stainless steel, characterized in that: The device includes a plastic valve body and a stainless steel insert embedded within the plastic valve body. An internal leakage assembly is installed inside the stainless steel insert. The internal leakage assembly includes a one-way valve core, a silicone gasket, a spring seat, an internal leakage spring, an internal leakage filter, an opening spring, and a hexagonal nut. The one-way valve core is fitted with a spring seat, and a silicone gasket is installed between the spring seat and the one-way valve core. The internal leakage spring is installed on the spring seat, and a hexagonal nut is fitted on the top of the spring seat for limiting its position. The hexagonal nut and the one-way valve core are connected by a nut. An opening spring is installed outside the spring seat, and the internal leakage filter is located outside the opening spring.
2. The plastic and stainless steel composite safety valve according to claim 1, characterized in that: The stainless steel insert is integrally formed, with an internal cavity for installing the internal leakage component. One end of the cavity has an internally threaded inner wall, and the other end has an externally threaded outer wall. An installation port is formed inside the cavity for positioning and installing the internal leakage component.
3. The plastic and stainless steel composite safety valve according to claim 1, characterized in that: The inner wall of the mounting cavity of the spring seat is formed with a hexagonal surface, and the mounting cavity is just used to install the internal leakage spring.