Water segregator sleeve valve

Abstract

The utility model relates to a water segregator sleeve valve which is provided with a valve body, a valve cavity is formed in the valve body, a spherical valve element is arranged in the valve cavity, the spherical valve element is connected with a valve handle through a valve rod on the top of the spherical valve element, water stop rings are arranged on the two sides of the spherical valve element, and the spherical valve element and the valve rod are of an engineering plastic integrally-formed structural body and form a core-rod integrated valve element. A valve element protection shell wrapping the spherical valve element and the valve rod close to the top of the spherical valve element is arranged outside the core rod integrated valve element, and the valve element protection shell also wraps the water stop rings on the two sides of the spherical valve element. An annular groove is formed in the valve rod close to the top of the spherical valve element, an O-shaped sealing ring is embedded in the annular groove, and a valve rod water sealing protection sleeve tightly matched with the valve rod is arranged between the upper portion of the valve element protection shell and the valve rod close to the top of the spherical valve element. According to the water segregator sleeve valve, the advantages caused by the fact that the valve element and the valve rod are made of plastic materials are utilized, the defects caused by the plastic materials are overcome through the ingenious structural design, and finally the effects of being low in cost, high in performance and long in service life are achieved.

Description

Technical Field

[0001] This utility model relates to the field of water pipeline valve technology, and in particular to a water distributor sleeve valve. Background Technology

[0002] The manifold valve plays a crucial role in underfloor heating and water supply systems. It not only controls water flow, prevents backflow and contamination, but also balances the system and facilitates maintenance and inspection. Therefore, the manifold valve is an essential component when installing a manifold.

[0003] The manifold valve has a valve body with a valve cavity inside. Inside the valve cavity is a spherical valve core, which is connected to a valve handle outside the valve body via a valve stem at its top. Water-stop rings are located on both sides of the spherical valve core. Currently, the valve cores and stems of manifold valves on the market are made of metal or plastic (or a combination of both). The main disadvantages of using metal are its higher price and susceptibility to corrosion, leading to higher requirements for water quality. The main disadvantages of using plastic are that the valve core and stem are prone to aging, wear, deformation, and vibration under high temperature, high pressure, and long-term use, resulting in incomplete valve closure and leakage due to poor sealing between the valve stem and valve body. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a water distributor sleeve valve to overcome the defects of the prior art and products as described in the background art.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a water distributor sleeve valve has a valve body, a valve cavity is formed in the valve body, a spherical valve core is in the valve cavity, the spherical valve core is connected to the valve handle outside the valve body through the valve stem at its top, and water-stop rings are provided on both sides of the spherical valve core. The spherical valve core and the valve stem at its top are integrally molded structures of engineering plastic, forming a core-stem integrated valve core. A valve core protective shell is provided outside the core-stem integrated valve core to wrap the spherical valve core and the valve stem near the top of the spherical valve core. The valve core protective shell also wraps the water-stop rings on both sides of the spherical valve core. Two to three annular grooves are formed on the valve stem near the top of the spherical valve core and O-rings are embedded in them respectively. A valve stem sealing water protection sleeve that fits tightly with the valve stem is provided between the upper part of the valve core protective shell and the valve stem near the top of the spherical valve core. The O-rings are located between the valve stem and the valve stem sealing water protection sleeve.

[0006] Furthermore, both the valve core protective shell and the valve stem sealing protective sleeve are made of engineering plastics.

[0007] The beneficial effects of this utility model are: the water distributor sleeve valve not only takes advantage of the use of plastic material for the valve core and valve stem, but also avoids the disadvantages caused by it through ingenious structural design, and finally achieves the effect of low cost, high performance and long service life. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0009] Figure 1 This is a schematic diagram of the main structure of this utility model (partial cross-section);

[0010] Figure 2 This is a schematic diagram of the main structure of this utility model (sectional view, omitting the valve body and valve handle).

[0011] In the diagram: 1. Valve body; 2. Integrated valve core; 2-1. Ball valve core; 2-2. Valve stem; 3. Valve handle; 4. Water-stop ring; 5. Valve core protective shell; 6. Valve stem water-sealing protective sleeve; 7. O-ring seal. Detailed Implementation

[0012] A type of manifold valve, such as Figure 1 , Figure 2 As shown, it has a valve body 1, within which a valve cavity is formed. A spherical valve core 2-1 is located within the valve cavity. The spherical valve core 2-1 is connected to a valve handle 3 outside the valve body 1 via a valve stem 2-2 at its top. Water-stop rings 4 are provided on both sides of the spherical valve core 2-1. The spherical valve core 2-1 and its top valve stem 2-2 are integrally molded from engineering plastic, forming a core-stem integrated valve core 2. A valve surround is provided around the core-stem integrated valve core 2, enclosing the spherical valve core 2-1 and a valve near the top of the spherical valve core 2-1. The valve core protective shell 5 of the rod 2-2 also encloses the water-stop rings 4 on both sides of the spherical valve core 2-1; 2 to 3 annular grooves are formed on the valve stem 2-2 near the top of the spherical valve core 2-1 and O-ring seals 7 are embedded in them respectively; a valve stem sealing water protection sleeve 6 that fits tightly with the valve stem 2-2 is provided between the upper part of the valve core protective shell 5 and the valve stem 2-2 near the top of the spherical valve core 2-1; and the O-ring seals 7 are located between the valve stem 2-2 and the valve stem sealing water protection sleeve 6.

[0013] The ball valve core 2-1 and valve stem 2-2 are integrally molded from engineering plastic to form an integrated valve core 2 with a simpler structure and lower manufacturing cost.

[0014] The presence of the valve core protective shell 5 creates an independent space for the ball valve core 2-1 of the integrated valve core 2, and protects and shields the ball valve core 2-1 from most of the high temperature and high pressure effects inside the valve body 1, thereby greatly improving the operational stability and service life of the ball valve core 2-1.

[0015] The valve stem sealing sleeve 6 can protect the valve stem 2-2 near the top of the ball valve core 2-1 and the O-ring seal 7 on the valve stem 2-2 from and shield most of the high temperature and high pressure inside the valve body 1, thereby improving the stability and service life of the valve stem 2-2 and the O-ring seal 7, and ensuring that there will be no water leakage at the gap between the valve stem 2-2 and the valve body 1 during long-term use of the valve.

[0016] Both the valve core protective shell 5 and the valve stem sealing water protection sleeve 6 are made of engineering plastics, resulting in low manufacturing costs.

[0017] The above embodiments are only used to explain the present utility model and are not intended to limit the protection of the present utility model. Any non-substantial modifications made based on the essential solution of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A water distributor sleeve valve, comprising a valve body (1), a valve cavity formed within the valve body (1), a spherical valve core (2-1) within the valve cavity, the spherical valve core (2-1) being connected to a valve handle (3) outside the valve body (1) via a valve stem (2-2) at its top, and water-stop rings (4) provided on both sides of the spherical valve core (2-1), characterized in that: The spherical valve core (2-1) and its top valve stem (2-2) are integrally molded structures made of engineering plastic, forming an integral valve core (2). A valve core protective shell (5) is provided outside the integral valve core (2) to wrap the spherical valve core (2-1) and the valve stem (2-2) near the top of the spherical valve core (2-1). The valve core protective shell (5) also wraps the water-stop rings (4) on both sides of the spherical valve core (2-1). Two to three annular grooves are formed on the valve stem (2-2) near the top of the spherical valve core (2-1) and O-rings (7) are embedded in each groove. A valve stem sealing sleeve (6) that fits tightly with the valve stem (2-2) is provided between the upper part of the valve core protective shell (5) and the valve stem (2-2) near the top of the spherical valve core (2-1). The O-rings (7) are located between the valve stem (2-2) and the valve stem sealing sleeve (6).

2. The distributor sleeve valve according to claim 1, characterized in that: The valve core protective shell (5) and the valve stem sealing water protective sleeve (6) are both made of engineering plastics.

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