Ball valve

Abstract

The utility model relates to the technical field of valves, in particular to a ball valve. A ball valve comprises a valve body, and a water inlet and a water outlet are formed in the two ends of the valve body respectively and used for fluid media to enter and exit. A valve ball is arranged in the valve body, and the valve ball can achieve opening and closing control of the water inlet and the water outlet through rotation of the valve rod. And a filter screen is arranged in the valve ball. The valve ball is provided with a through inner cavity and three through holes, and the two symmetrical through holes are respectively used as an inlet and an outlet of a fluid medium; and the third vertical through hole is used for placing a filter screen. The upper part of the valve body is provided with a vertical installation interface, thereby facilitating vertical installation of the pressure gauge and realizing direction adjustment. And a double-nut locking assembly structure is arranged at the tail part of the ball valve, so that the connection reliability is ensured. And the front end of the structure is also provided with a sealing washer with taper. Through the compact design, the volume occupation is reduced, the installation and maintenance are convenient, the safety and efficiency of system operation are obviously improved, the use cost is reduced, and the device is suitable for various fluid control scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a ball valve. Background Art

[0002] As an important fluid control device, ball valves are widely used in industrial production, domestic water supply systems, and other liquid or gas fluid control systems. Traditional ball valves open and close the inlet and outlet through the rotation of the valve ball inside the valve body. With its simple structure, easy operation, and good sealing performance, it plays an important role in various fluid piping systems. However, with the diversification of system requirements, traditional ball valves have exposed the following shortcomings:

[0003] Limitations of filter and valve body design: Existing ball valve filters are mostly installed at an angle within the valve body or connected to an independent filter. This design requires more space in the valve body, resulting in a larger ball valve and increased installation space. Furthermore, the addition of an independent filter increases system costs and makes maintenance more difficult. The filter's cut edges are not coated with plastic, which can cause the valve ball to rotate awkwardly and make removal difficult. The remaining burrs can also affect the filtration of fine wire contaminants.

[0004] Inadequate Sealing: Traditional ball valves often utilize a single nut locking mechanism and a flat gasket seal. This can easily loosen due to vibration or pressure fluctuations during use, increasing the risk of leakage. This design struggles to meet high safety and sealing requirements, and its performance disadvantages are particularly pronounced in scenarios requiring long-term, reliable operation.

[0005] Lack of pressure monitoring: Conventional ball valves generally lack pressure monitoring capabilities, or require the installation of a separate external pressure gauge. While some ball valves are designed with pressure gauges, these are bulky and lack integration, taking up more space. Furthermore, they lack accurate, real-time quantitative monitoring of system pressure, making them difficult to meet user demands for space conservation and ease of operation.

[0006] Traditional ball valve designs are primarily focused on a single function, failing to address multiple functions such as filtration, sealing, and pressure monitoring. This requires users to purchase additional equipment such as filters and pressure gauges, increasing system complexity, maintenance costs, and space requirements.

[0007] Due to the above issues, existing technologies cannot simultaneously meet the requirements of compact design, reliable sealing, integrated filtration and pressure monitoring. Therefore, there is an urgent need for a ball valve with a more optimized structure, more integrated functions, and more reliable sealing to reduce system costs and improve ease of use and safety. Utility Model Content

[0008] The purpose of this utility model is to provide an integrated ball valve with a pressure gauge and a filter placed inside the valve ball. By optimizing the structural design, the filter is placed vertically inside the valve ball, and the pressure gauge and magnetic rod functions are integrated to achieve integrated filtration, purification, pressure monitoring, etc.; a double nut locking structure is adopted, plus a conical sealing gasket to enhance the sealing performance and connection reliability; the compact design reduces the volume occupancy, facilitates installation and maintenance, significantly improves the safety and efficiency of the system operation, reduces the cost of use, and is suitable for a variety of fluid control scenarios.

[0009] The specific technical solution of the utility model is as follows: a ball valve comprising a valve body, with a water inlet and a water outlet at each end, the water inlet and outlet directions being interchangeable, allowing for the inflow and outflow of a fluid medium. A valve ball is disposed within the valve body, and the valve ball can be rotated by a valve stem to control the opening and closing of the water inlet and outlet. A filter is disposed within the valve ball.

[0010] Furthermore, the valve ball is provided with a through inner cavity and three through holes, two symmetrical through holes serve as inlet and outlet of the fluid medium respectively; and the third vertical through hole is used for placing a filter screen.

[0011] Furthermore, the front end of the valve body is equipped with a hot melt head, which is connected to the pipeline by hot melting, and the installation is quick and convenient.

[0012] Furthermore, the outside of the valve ball is tightly fitted with the sealing gasket to enhance the sealing performance and reduce fluid leakage.

[0013] Furthermore, a vertical mounting port on the upper portion of the valve body facilitates vertical installation of a pressure gauge, with adjustable orientation. Mounting the pressure gauge directly above the valve body, the compact design minimizes space. The pressure gauge utilizes a gasket seal, simplifies installation, and is adjustable, enabling real-time monitoring of the fluid pressure within the system.

[0014] Furthermore, the filter is vertically positioned and installed in the vertical through-hole inside the valve ball. The filter opening is always facing the water inlet, ensuring that all fluid media enters the filter and is effectively filtered before entering the system. The filter is plastic-coated, resulting in a smooth and elastic surface, making installation easy and smooth. The outer ribs enhance its toughness and extend its service life.

[0015] Furthermore, a small boss is provided at one end of the filter screen, which cooperates with a preset groove in the valve body to limit the position and prevent the filter screen from rotating or shifting. The filter screen is locked and fixed by a nut.

[0016] Furthermore, a magnetic rod is provided inside the nut to absorb metal particles in the fluid, further reducing the pressure burden on the filter and improving the filtration efficiency.

[0017] Furthermore, the valve body's tail is designed with a double-nut locking structure and a conical sealing gasket. Two locking nuts and a conical sealing gasket are installed at the tail of the valve body: the first locking nut compresses the conical gasket to ensure an initial seal with the pipeline; the second locking nut applies thrust to the first nut, further enhancing the sealing performance and preventing loosening. The combination of the double nuts and conical gasket ensures a more reliable seal that can effectively withstand vibration and high-pressure environments.

[0018] Furthermore, in order to meet diverse needs, we also reserve ball valves with internal thread connections at the tail and external thread connections at the tail.

[0019] Furthermore, the top of the valve stem is connected to a metal handle. Rotating the handle drives the valve stem, which in turn drives the valve ball to rotate, achieving on / off control of the water inlet and outlet. The handle can be rotated 180 degrees, making operation easy.

[0020] This utility model realizes a multifunctional integrated design of filtration, purification and pressure monitoring by placing the filter screen vertically in the valve ball and integrating the functions of the magnetic rod and pressure gauge; the double-nut locking structure and conical sealing gasket are adopted to effectively enhance the sealing performance and connection stability, and avoid loosening and leakage; the structure is compact, occupies little space, and is easy to install and maintain, which significantly improves the operating reliability and service life of the system while reducing costs. It is suitable for a variety of fluid control scenarios and has good practicality and market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic cross-sectional structure diagram of a specific embodiment of the present utility model.

[0022] Figure 2 This is a schematic diagram of the external structure of a specific embodiment of the utility model.

[0023] Figure 3 This is a schematic diagram of the interior of a valve ball in a specific embodiment of the present utility model.

[0024] Figure 4 This is a schematic diagram of an optional tail portion connected by an internal thread.

[0025] Figure 5 This is a schematic diagram of an optional tail portion connected with an external thread in the present invention.

[0026] Description of the accompanying figures: 1. Conical washer; 2. Lock nut; 3. Valve body; 5. Valve gasket; 6. Lock nut;

[0027] 7. Magnetic rod; 8. Filter; 9. Lock nut; 10. Hot melt head; 11. Nut; 12. Sealing ring; 13. Valve ball;

[0028] 14. Metal handle; 15. Locking screw; 16. Valve stem; 17. Pressure gauge; 18. Locking nut. DETAILED DESCRIPTION

[0029] The technical solution of the present utility model is further explained below in conjunction with specific embodiments.

[0030] A ball valve includes a valve body 3, with a water inlet and a water outlet at each end of the valve body 3, a valve ball 13 provided inside the valve body 3, a through inner cavity 4 provided in the valve ball 13, and three through holes provided in the valve ball, two symmetrical through holes being the water inlet and the water outlet, and the third being the filter placement hole. The filter 8 is inserted from the third hole until the hole corresponds to the top of the inner cavity. A small boss is provided at one end of the filter 8, which cooperates with the groove provided on the valve body to limit the position, ensuring that the opening direction of the filter 8 is always facing the water inlet; the position of the filter 8 is locked and fixed by the top of the nut 6. A magnetic rod is provided inside the nut to absorb metal particles, etc. The pressure gauge 17 is provided directly above the valve body 3, installed vertically, and the direction is adjustable; it can monitor the system medium pressure in real time, and it is sealed with a gasket and is easy to replace. The ball valve's tail is equipped with two locking nuts 2 and 18 and a tapered washer 1. The locking nut 18, located closest to the washer, is first tightened against the tapered washer 1. Locking nut 2 then applies a thrust to locking nut 18. The two nuts fit tightly together, ensuring a secure connection and minimizing loosening due to excessive pressure or vibration. The filter screen 8 is positioned vertically within the valve ball 13 and is unaffected by its rotation. The opening of the filter screen 8 always faces the water inlet.

[0031] To sum up, the utility model realizes a multifunctional integrated design of filtration, purification, pressure monitoring, etc. by placing the filter screen vertically in the valve ball and integrating the functions of the magnetic rod and pressure gauge; the double nut locking structure and conical sealing gasket are adopted to effectively enhance the sealing performance and connection stability to avoid loosening and leakage; the structure is compact, occupies little space, and is easy to install and maintain, which significantly improves the operating reliability and service life of the system while reducing costs. It is suitable for a variety of fluid control scenarios and has good practicality and market prospects.

Claims

1. A ball valve comprising a valve body, with a water inlet and a water outlet respectively provided at both ends of the valve body, a valve ball disposed within the valve body, a filter disposed within the valve ball, and the valve ball being capable of switching the water inlet and the water outlet on and off by rotating a valve stem, characterized in that: A filter is provided inside the valve ball.

2. A ball valve according to claim 1, characterized in that: The valve ball is provided with a through inner cavity and three through holes, two symmetrical through holes serve as inlet and outlet of the fluid medium respectively; the third through hole is used for placing a filter screen.

3. A ball valve according to claim 1, characterized in that: The filter is a vertically placed structure and is installed in the vertical through hole inside the valve ball. The filter opening is always facing the water inlet, ensuring that all fluid media enters the filter and enters the system after being effectively filtered.

4. A ball valve according to claim 1, characterized in that: The front end of the valve body is equipped with a hot melt head, which is connected to the pipeline by hot melting, and the installation is fast and convenient.

5. A ball valve according to claim 1, characterized in that: The outside of the valve ball is tightly fitted with the sealing gasket to enhance sealing performance and reduce fluid leakage.

6. A ball valve according to claim 1, characterized in that: A vertical installation interface is provided on the upper part of the valve body to facilitate vertical installation of the pressure gauge.

7. A ball valve according to claim 1, characterized in that: A small boss is provided at one end of the filter screen, which cooperates with a preset groove in the valve body to limit the position and prevent the filter screen from rotating or shifting. The filter screen is locked and fixed by a nut.

8. A ball valve according to claim 7, characterized in that: A magnetic rod is also provided inside the nut for absorbing metal particles in the fluid.

9. A ball valve according to claim 1, characterized in that: A double-nut locking structure and a conical sealing gasket are designed at the tail of the valve body. Two locking nuts and a conical sealing gasket are set at the tail of the valve body: the first locking nut is used to tighten the conical gasket to ensure the initial seal with the pipeline; the second locking nut applies thrust to the first nut to further enhance the sealing performance and prevent loosening.

10. A ball valve according to claim 1, characterized in that: The top of the valve stem is connected to a metal handle. The rotation of the handle drives the valve stem, which in turn drives the valve ball to rotate, thereby realizing the switching control of the water inlet and outlet.

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