Magnetic type one-way valve and using method

Abstract

The invention provides a magnetic suction type one-way valve and a using method.The one-way valve comprises a body, a sealing magnetic ball, a hollow magnetic ring and a magnetic force adjusting gasket, the body comprises a cavity and a pipe body communicated with the cavity, the pipe body comprises an input pipe and an output pipe, and the input pipe and the output pipe are arranged at the two ends of the cavity respectively and communicated with the cavity; the outer wall of the output pipe and the outer wall of the input pipe are provided with threaded structures, the sealing magnetic ball is arranged in the cavity and comprises a ball body and a magnet core, the magnet core is arranged in the ball body, a sealing ring is arranged at the joint of the input pipe and the cavity, the input pipe is sleeved with the hollow magnetic ring, and the hollow magnetic ring is fixed through a magnetic ring positioning nut. The magnetic force adjusting gasket is arranged on the input pipe in a sleeving mode and located between the outer wall of the cavity and the hollow magnetic ring. The valve is closed through magnetic attraction, the sealing property is good, the use precision is high, and the one-way valve capable of replacing an electromagnet mode is suitable for being used in special scenes such as petroleum, chemical engineering, aviation, ocean, medical treatment and military industry.

Description

Technical Field

[0001] This invention relates to the field of one-way valve technology, specifically to a magnetic one-way valve and its usage method. Background Technology

[0002] One-way valves are generally installed in pipelines to restrict the unidirectional flow of fluid within the pipeline. That is, fluid flows in from the inlet of the one-way valve and flows out from the outlet of the one-way valve, but cannot flow in from the outlet and out from the inlet. As a directional control valve, the one-way valve is widely used in many fields such as industrial production.

[0003] Currently, check valves are generally divided into three types: gravity type, spring type, and electric type.

[0004] Gravity type: Similar to spring type, it relies on the weight of the valve core to close and prevent backflow.

[0005] Spring-loaded check valve: Fluid flows from bottom to top, and the pressure pushes up the valve core controlled by a spring. When the pressure is released, the spring force pushes the valve core down, preventing backflow of liquid. Commonly used in check valves with small diameters.

[0006] Electric type: The valve core moves up and down through electrical control, thereby controlling the opening and closing of the valve and preventing backflow.

[0007] Each of the above-mentioned check valves has its own disadvantages: gravity check valves rely solely on the weight of the valve core as their power source, resulting in slow and unreliable response; compared to gravity check valves, spring check valves are faster and more reliable, but the use of springs makes them prone to clogging, and the springs wear out and require periodic replacement; electric check valves overcome the disadvantages of gravity and spring check valves, but their operating costs are too high, and because they are electrically controlled, their reliability is lower than that of purely mechanically controlled valves.

[0008] Existing check valves are components that directly contact the flowing medium. Due to the continuous scouring of the flowing medium and the corrosiveness of different flowing media, such as chemical solutions in the chemical industry, traditional check valves sold on the market are prone to corrosion, loosening, leakage, and damage. Patent CN117722515A discloses an intelligent check valve with a self-cleaning function, including a valve body. The valve body contains a cleaning component used to control the opening and closing of the check valve. The cleaning component consists of a ball, a magnet's N pole, and a magnet's S pole. The ball is movably disposed inside the valve body and is used to block or open the input end. A magnet is located on one side of the bottom of the valve body, and this magnet, in conjunction with the cleaning component, controls the opening and closing of the check valve. However, this check valve is electromagnet-controlled and requires electricity to operate. In some special fields such as petroleum, chemical, and aerospace, where electricity cannot be used, electromagnetic check valves cannot be used, thus limiting their application. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this invention provides a magnetic one-way valve that employs magnetic non-contact coupling, ensuring excellent sealing and preventing leakage. It is suitable for use in special scenarios such as petroleum, chemical, aviation, marine, medical, and military industries.

[0010] To achieve the above objectives, the present invention provides the following technical solution: A magnetically attracted one-way valve includes a body, a sealing magnetic ball, a hollow magnetic ring, and a magnetic force adjusting gasket. The body includes a cavity and a tube communicating with the cavity. The tube includes an input tube and an output tube, which are respectively located at both ends of the cavity and communicate with it. The outer walls of the output tube and the input tube are provided with threaded structures. The sealing magnetic ball is located in the cavity and includes a sphere and a magnetic core, with the magnetic core located in the sphere. A sealing ring is provided at the connection between the input tube and the cavity. The hollow magnetic ring is sleeved on the input tube and fixed by a magnetic ring positioning nut. The magnetic force adjusting gasket is sleeved on the input tube and located between the outer wall of the cavity and the hollow magnetic ring. The body, sphere, sealing ring, and magnetic force adjusting gasket are made of Teflon material.

[0011] Furthermore, the cavity includes an upper cavity and a lower cavity, both of which have accommodating spaces. The upper cavity and the lower cavity are connected by threads to form a cavity structure with an internal accommodating space, and the diameter of the cavity structure is significantly larger than the diameter of the tube.

[0012] Furthermore, an outlet pressing nut is threadedly connected to the output pipe. The outlet pressing nut is held against the lower end of the cavity. A threaded hole is opened at the center of the outlet pressing nut, and the threaded hole is connected to the output pipe.

[0013] Furthermore, the sphere has a solid structure with a smooth surface and an internal mounting groove, in which the magnet core is installed.

[0014] Furthermore, the magnet core is elongated or circular, and is a strong magnet.

[0015] Furthermore, the hollow magnetic ring is a ring-shaped magnet, wherein the magnet is a strong magnet.

[0016] Furthermore, a compression sealing gasket is provided at the end of both the input pipe and the output pipe. The compression sealing gasket is in the shape of a ring, with a through hole in the direction of its central axis. The top of the compression sealing gasket extends upward to form a frustum-shaped mounting end, which is inserted into the input pipe or the output pipe and fixed.

[0017] Furthermore, the sealing ring is circular in shape with a through hole in the direction of its central axis. The bottom end of the sealing ring is concave inward from the edge towards the through hole in the center, forming a funnel shape, which forms a contact surface with the same curvature as the sphere. Under normal conditions, the sphere is subjected to magnetic force and fits tightly against the arc-shaped contact surface at the bottom of the sealing ring. The top end of the sealing ring extends upward to form a frustum-shaped mounting end, which is inserted into the input pipe and fixed.

[0018] Furthermore, a sealing groove is provided at the connection between the cavity and the input pipe. The sealing groove has a circular structure, and a sealing ring is installed inside the sealing groove. The lower edge of the sealing ring is flush with or slightly higher than the edge of the sealing groove.

[0019] Furthermore, the sealing ring is circular in shape, with a through hole at its axial position. The bottom end of the sealing ring is concave inward from the edge towards the through hole in the center, forming a funnel shape, which creates an arc contact surface with the same curvature as the sphere. Under normal conditions, the sphere is subjected to magnetic force and fits tightly against the arc contact surface at the bottom end of the sealing ring, thereby sealing the input pipe.

[0020] Furthermore, the hollow magnetic ring is a ring-shaped magnet. The lower end of the hollow magnetic ring is supported on the top of the upper cavity, and the upper end of the hollow magnetic ring is fixed to the outer wall of the input pipe by a magnetic ring positioning nut. The magnetic ring positioning nut presses and fixes the hollow magnetic ring on the input pipe. The rear end of the magnetic ring positioning nut is threadedly connected to an inlet pressing nut. A threaded hole is opened at the center of the inlet pressing nut, and the threaded hole is connected to the input pipe.

[0021] Furthermore, the magnetic force adjustment pad has a circular structure, and multiple magnetic force adjustment pads are provided.

[0022] Furthermore, the magnetic force adjustment pad is provided with a notch, which is slightly smaller than the outer diameter of the input tube.

[0023] The magnetic check valve described above is used as follows: 1. Connect pipes to the inlet and outlet pipes of the valve body respectively; 2. Calculate the required magnetic force based on the pressure requirements of the input gas or liquid, select a hollow magnetic ring with the corresponding strength, and fix the hollow magnetic ring and magnetic force adjusting shim on the body and secure them with the pressing nut. 3. Under normal conditions, the ball and the hollow magnetic ring attract each other, and the ball is tightly attached to the sealing ring. The close contact between the two seals the input pipe, thereby achieving the closed state of the one-way valve. After setting a fixed input pressure value in the input device, gas or liquid is input into the input pipe. When the gas pressure or water pressure is higher than the water pressure or gas pressure in the output pipe and greater than the magnetic force between the ball and the hollow magnetic ring, the gas or liquid pushes the ball open and enters the cavity and flows out from the output pipe. 4. During use, the number of magnetic adjustment pads can be increased or decreased according to the input pressure to adjust the suction force between the two, thereby adjusting the flow rate.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes magnetic attraction to open and close valves, providing excellent sealing and preventing leakage. It replaces traditional spring and gravity-based opening and closing methods, resulting in a simpler structure and higher precision. Compared to traditional methods that use electromagnets to attract the valve core for on / off switching, this magnetic check valve requires no electricity, maintains its magnetism for an extended period (up to 50 years without demagnetization or decrease in magnetic force), and features stable magnetic force. The inlet pressure can be adjusted using shims, making it suitable for use in specialized applications such as petroleum, chemical, aviation, marine, medical, and military industries. Attached Figure Description

[0025] Figure 1 This is a perspective view of the magnetically attracted one-way valve described in this invention; Figure 2 This is an exploded view of the magnetic one-way valve described in this invention; Figure 3 This is a cross-sectional view of the magnetically attracted one-way valve described in this invention; Figure 4 For the appendix Figure 2 A schematic diagram of the cross-section of the sealed magnetic sphere shown; Figure 5 For the appendix Figure 2 The diagram shows the structure of the pressed sealing gasket; Figure 6 For the appendix Figure 2 The diagram shows the structure of the sealing ring. Figure 7 This is a schematic diagram of the optimized structure of the magnetic adjustment pad. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1-3 As shown, a magnetic one-way valve includes a body 1, a sealing magnetic ball 2, a hollow magnetic ring 3, and a magnetic force adjusting pad 4. The body 1 includes a cavity 11 and a tube 12 that communicates with the cavity 11. The cavity 11 includes an upper cavity 111 and a lower cavity 112. Both the upper cavity 111 and the lower cavity 112 have accommodating spaces. The upper cavity 111 and the lower cavity 112 are connected by threads to form a cavity structure with an internal accommodating space. The diameter of the cavity structure is significantly larger than the diameter of the tube 12. Since the cavity 11 is in direct contact with the transported liquid or gas, in order to prevent corrosive liquid or gas from corroding the interior of the cavity 11, in this embodiment, the body 1 is made of Teflon material to have strong corrosion resistance. The pipe body 12 includes an input pipe 121 and an output pipe 122. The input pipe 121 is connected to and communicates with the upper cavity 111 and is used for connecting a water inlet pipe or an air inlet pipe. The output pipe 122 is connected to and communicates with the lower cavity 112 and is used for connecting a water outlet pipe or an air outlet pipe. The outer walls of the output pipe 122 and the input pipe 121 are provided with threaded structures. An outlet pressing nut 13 is threadedly connected to the output pipe 122. The outlet pressing nut 13 is held against the lower end of the cavity 11. A threaded hole is opened at the center of the outlet pressing nut 13 and communicates with the output pipe 122. An external pipe can be connected through the threaded hole.

[0028] Both the input pipe 121 and the output pipe 122 are provided with a compression sealing gasket 6 at their ends. The compression sealing gasket 6 is used for sealing connection with external pipes, such as... Figure 5 As shown, the compression sealing gasket 6 is annular in shape with a through hole in the direction of its central axis. The top of the compression sealing gasket 6 extends upward to form a frustum-shaped mounting end 61. During installation, the mounting end 61 is inserted into the input pipe 121 or the output pipe 122 and fixed. Since the compression sealing gasket 6 is in direct contact with the conveyed liquid or other substances, in order to prevent corrosion by corrosive liquids or gases, in this embodiment, the compression sealing gasket 6 is made of Teflon material to have strong corrosion resistance.

[0029] The sealing magnetic ball 2 is disposed inside the cavity 11. The sealing magnetic ball 2 is used to control the opening and closing of the one-way valve, such as... Figure 4As shown, the sealing magnetic ball 2 includes a ball 21 and a magnetic core 22. The ball 21 has a solid structure and a smooth surface. It has an installation groove 211 inside. The magnetic core 22 is installed in the installation groove 211. The magnetic core 22 is elongated or circular. The magnetic core 22 uses a strong magnet, such as a neodymium iron boron magnet, to have strong magnetic force. The ball 21 is used to close or open the input pipe 121 of the tube body 12.

[0030] A sealing groove (not shown in the figure) is formed at the connection between the cavity 11 and the input pipe 121. The sealing groove has a circular structure, and a sealing ring 5 is installed inside the sealing groove. The lower edge of the sealing ring 5 is flush with or slightly higher than the edge of the sealing groove. Figure 6 As shown, the sealing ring 5 is circular in shape, with a through hole at its axial position for liquid or gas to pass through. The sealing ring 5 is used to cooperate with the ball 21 to seal the input pipe 121. The bottom end of the sealing ring 5 is concave inward from the edge towards the through hole in the center, forming a funnel shape, which forms an arc contact surface with the same curvature as the ball. Under normal conditions, the ball 21 is subjected to magnetic force and fits tightly against the arc contact surface at the bottom end of the sealing ring 5, thereby sealing the input pipe 121.

[0031] The hollow magnetic ring 3 is sleeved on the input pipe 121. The hollow magnetic ring 3 is a ring-shaped magnet, wherein the magnet is a strong magnet, such as a neodymium iron boron magnet, which attracts the magnetic core 22 of the sphere 21 with strong magnetic force. In practice, the lower end of the hollow magnetic ring 3 is supported on the top of the upper cavity 111, and the upper end of the hollow magnetic ring 3 is fixed to the outer wall of the input pipe 121 by a magnetic ring positioning nut 31. The magnetic ring positioning nut 31 presses and fixes the hollow magnetic ring 3 onto the input pipe 121. Nut 31 has an inlet compression nut 32 connected to its rear thread. The inlet compression nut 32 has a threaded hole at its center, which connects to the input pipe 121, allowing connection to an external pipe. In normal operation, the nut 21 is attracted to the hollow magnetic ring 3 on the input pipe 121, causing the nut 21 to fit tightly against the sealing ring 5, thus closing the input pipe 121. When the water or air pressure in the input pipe 121 is higher than the water or air pressure in the output pipe 122, and the pressure is greater... When the spheres 21 are magnetically attracted, water or air pressure pushes them open, allowing liquid or gas to enter the cavity 11 and flow out through the output pipe 122. To accommodate different water or air pressures, the magnetic attraction between the spheres 21 and the hollow magnetic ring 3 can be adjusted by changing the distance between them. Therefore, the magnetic force adjusting pad 4 is fitted onto the input pipe 121 and located between the outer wall of the cavity 11 and the hollow magnetic ring 3. The magnetic force adjusting pad 4 is made of Teflon material. The magnetic adjustment pad 4 is made of a circular ring structure. Multiple magnetic adjustment pads 4 are provided. The number of magnetic adjustment pads 4 can be set according to different pressure levels. Multiple magnetic adjustment pads 4 are stacked together to form a certain height value. The more magnetic adjustment pads 4 there are, the greater the distance between the hollow magnetic ring 3 and the sphere 21, the smaller the magnetic force between them, and the lower the water or air pressure required to enter the input pipe 121. Conversely, the less magnetic adjustment pads 4 there are, the greater the water or air pressure required to enter the input pipe 121.

[0032] As a further improvement to the present invention, such as Figure 7 As shown, the magnetic adjustment pad 4 has a notch 41, which is slightly smaller than the outer diameter of the input tube 121. In use, due to the elasticity and flexibility of the Teflon material, the input tube 121 can be inserted into the notch 41 of the magnetic adjustment pad 4, and the magnetic adjustment pad 4 can be fitted onto the input tube 121. When it is necessary to reduce the number of magnetic adjustment pads 4, the magnetic adjustment pad 4 can be removed through the notch 41. This structure can easily add or remove the number of magnetic adjustment pads 4 without frequently disassembling the hollow magnetic ring 3 and the magnetic ring positioning nut 31, thus improving the efficiency of use.

[0033] The working principle of this invention is as follows: In normal operation, the ball 21 attracts the hollow magnetic ring 3 in the closed state, and the ball 21 is tightly attached to the sealing ring 5. The close contact between the two seals the input pipe 121, thus achieving the closed state of the one-way valve. When the water pressure or air pressure on the input pipe 121 is greater than the magnetic force between the ball 21 and the hollow magnetic ring 3, the water pressure or air pressure pushes the ball 21 open and enters the cavity 11, flowing out from the output pipe 122. During use, the number of magnetic adjustment shims 4 can be increased or decreased according to the input pressure. By adjusting the distance between the ball 21 and the hollow magnetic ring 3, the attraction between the two can be adjusted, thereby adjusting the flow rate.

[0034] The magnetic check valve described above is used as follows: 1. Connect pipes to the inlet pipe 121 and outlet pipe 122 of the valve body respectively; 2. Calculate the required magnetic force according to the pressure requirements of the input gas or liquid, select a hollow magnetic ring 3 with the corresponding strong magnetic force, and fix the hollow magnetic ring 3 and the magnetic force adjusting shim 4 on the body 1 and fix them with the pressing nut. 3. Under normal conditions, the ball 21 is attracted to the hollow magnetic ring 3, and the ball 21 is tightly attached to the sealing ring 5. The close contact between the two seals the input pipe 121, thereby achieving the closed state of the one-way valve. After setting a fixed input pressure value in the input device, gas or liquid is input into the input pipe 121. When the gas pressure or water pressure is higher than the water pressure or gas pressure in the output pipe 122 and greater than the magnetic force between the ball 21 and the hollow magnetic ring 3, the gas or liquid pushes open the ball 21 and enters the cavity 11 and flows out from the output pipe 122. 4. During use, the number of magnetic adjustment pads 4 can be increased or decreased according to the input pressure to adjust the suction force between the two, thereby adjusting the flow rate.

[0035] Based on the above principles, due to magnetic adsorption, the valve body structure has no installation restrictions and can be installed longitudinally, laterally, inverted, or tilted. It can be installed and used freely under conditions such as aerospace weightlessness and marine depressurization. In addition, apart from magnetic materials (such as iron) which cannot be used as manufacturing materials, other materials such as copper, stainless steel, titanium alloy, aluminum, carbon fiber, engineering plastics, ceramics, glass, silicone, and modified engineering plastics such as Teflon and PEK (polyetherketone) can all be used to manufacture the main body of the valve body. Different materials can be used to make the main body depending on the specific fluid or gas being used. For example, when the fluid or gas being used is corrosive, a main body structure made of Teflon can be used. When the fluid or gas being used is non-corrosive, a main body structure made of different materials such as copper, stainless steel, or titanium alloy can be selected according to the properties of the fluid or gas being used.

[0036] This invention utilizes magnetic attraction to open and close valves, providing excellent sealing and preventing leakage. It replaces traditional spring and gravity-based opening and closing methods, resulting in a simpler structure and higher precision. Compared to traditional methods that use electromagnets to attract the valve core for on / off switching, this magnetic check valve requires no electricity, maintains its magnetism for an extended period (up to 50 years without demagnetization or decrease in magnetic force), and features stable magnetic force. The inlet pressure can be adjusted using shims, making it suitable for use in specialized applications such as petroleum, chemical, aviation, marine, medical, and military industries.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A magnetically attracted one-way valve, comprising a body, a sealing magnetic ball, a hollow magnetic ring, and a magnetic force adjusting pad, characterized in that: The main body includes a cavity and a tube that communicates with the cavity. The tube includes an input tube and an output tube, which are respectively located at both ends of the cavity and connected to it. The outer walls of the output tube and the input tube are provided with threaded structures. A sealing magnetic ball is located in the cavity and includes a sphere and a magnetic core, with the magnetic core located in the sphere. A sealing ring is provided at the connection between the input tube and the cavity. A hollow magnetic ring is sleeved on the input tube and fixed by a magnetic ring positioning nut. A magnetic force adjusting shim is sleeved on the input tube and located between the outer wall of the cavity and the hollow magnetic ring. The main body, the sphere, the sealing ring, and the magnetic force adjusting shim are made of Teflon material.

2. The magnetically attracted one-way valve according to claim 1, characterized in that: The cavity includes an upper cavity and a lower cavity, both of which have accommodating spaces. The upper cavity and the lower cavity are connected by threads to form a cavity structure with an internal accommodating space. The diameter of the cavity structure is significantly larger than the diameter of the tube.

3. The magnetically attracted one-way valve according to claim 1, characterized in that: An outlet pressing nut is threadedly connected to the output pipe. The outlet pressing nut is held against the lower end of the cavity. A threaded hole is opened at the center of the outlet pressing nut, and the threaded hole is connected to the output pipe.

4. The magnetically attracted one-way valve according to claim 1, characterized in that: The sphere has a solid structure with a smooth surface and an internal mounting groove, in which the magnet core is installed.

5. The magnetically attracted one-way valve according to claim 1, characterized in that: Both the input pipe and the output pipe are provided with a compression sealing gasket at their ends. The compression sealing gasket is in the shape of a ring, with a through hole in the direction of its central axis. The top of the compression sealing gasket extends upward to form a frustum-shaped mounting end, which is inserted into the input pipe or the output pipe and fixed.

6. The magnetically attracted one-way valve according to claim 1, characterized in that: The sealing ring is circular in shape with a through hole in the direction of its central axis. The bottom end of the sealing ring is concave inward from the edge towards the through hole in the center, forming a funnel shape, which forms a contact surface with the same curvature as the sphere. Under normal conditions, the sphere is subjected to magnetic force and fits tightly against the arc-shaped contact surface at the bottom end of the sealing ring. The top end of the sealing ring extends upward to form a frustum-shaped mounting end, which is inserted into the input pipe and fixed.

7. The magnetically attracted one-way valve according to claim 1, characterized in that: A sealing groove is provided at the connection between the cavity and the input pipe. The sealing groove has a circular structure, and a sealing ring is installed inside the sealing groove. The lower edge of the sealing ring is flush with or slightly higher than the edge of the sealing groove.

8. The magnetically attracted one-way valve according to claim 1, characterized in that: The sealing ring is circular in shape with a through hole at its axial position. The bottom end of the sealing ring is concave inward from the edge towards the through hole in the center, forming a funnel shape, which creates a contact surface with the same curvature as the sphere. Under normal conditions, the sphere is subjected to magnetic force and fits tightly against the arc-shaped contact surface at the bottom end of the sealing ring, thereby sealing the input pipe.

9. The magnetically attracted one-way valve according to claim 1, characterized in that: The hollow magnetic ring is a ring-shaped magnet. The lower end of the hollow magnetic ring is supported on the top of the upper cavity. The upper end of the hollow magnetic ring is fixed to the outer wall of the input pipe by a magnetic ring positioning nut. The magnetic ring positioning nut presses the hollow magnetic ring tightly and fixes it on the input pipe. The rear end of the magnetic ring positioning nut is threadedly connected to an inlet pressing nut. A threaded hole is opened at the center of the inlet pressing nut, and the threaded hole is connected to the input pipe.

10. A method of using the magnetically attracted one-way valve as described in any one of claims 1-9, characterized in that: Includes the following steps: (1) Connect pipes to the inlet and outlet pipes of the valve body respectively; (2) Calculate the required magnetic force according to the pressure requirements of the input gas or liquid, select a hollow magnetic ring with a corresponding strong magnetic force, and fix the hollow magnetic ring and magnetic force adjustment shim on the body and fix it with the pressing nut. (3) Under normal conditions, the ball and the hollow magnetic ring attract each other and the ball is tightly attached to the sealing ring. The two are in close contact to seal the input pipe, thereby achieving the closed state of the one-way valve. After setting a fixed input pressure value in the input device, gas or liquid is input into the input pipe. When the gas pressure or water pressure is higher than the water pressure or gas pressure in the output pipe and greater than the magnetic force between the ball and the hollow magnetic ring, the gas or liquid pushes the ball open and enters the cavity and flows out from the output pipe. (4) During use, the number of magnetic adjustment pads can be increased or decreased according to the input pressure to adjust the suction force between the two, thereby achieving flow rate adjustment.

Images