FLUID CONTROL VALVE AND BALL HOLDER FOR THIS FLUID CONTROL VALVE

Abstract

The invention relates to a fluid control valve, comprising: a valve body (1), a valve body (1) with a first air passage (11) and a second air passage (12), the first valve air passage (13) arranged between the first air passage (11) and the second air passage (12), a valve body (1) with an annular stop (14) on the inner wall surface, and the second valve air passage (141) passing through the annular stop (14), a ball holder (2), its two ends being an extended mounting hole (211) and a connector (22), the connector (22) having an air passage (221), a ball holder (2) having through-holes (23) on the part between the extended mounting hole (211) and the connector (22), the through-hole (23) connected to the first valve air passage (13) and the air passage (221), the extended mounting hole (211) is fitted with a magnetic detail (24), the connecting part (22) is connected to the inner wall of the first air passage (11), and the extended mounting hole (211) faces the annular stopper (14);and magnetic ball (3), magnetic ball (3) is arranged to be movable inside the first valve air passage (13) and is positioned between the annular stop (14) and the extended mounting hole (211). When the magnetic ball (3) is not blocking and controlling the fluid, the magnetic ball (3) rests against the extended mounting hole (211) due to the magnetic attraction of the magnet (24), and thus does not move freely. The invention also relates to a ball holder (2) for this fluid control valve.;

Description

Fluid control valve and ball support thereof Technical Field

[0001] The present application is applied to the field of fluids, for example, the control of fluids inside gas pipelines and liquefied gas pipelines, wherein the fluid control includes check valves, over-flow blocking, flow limiting, etc. Background Art

[0002] Gas refers to gas that can be used as fuel (for example, natural gas, coal gas, etc.). It can generate a large amount of heat energy after combustion, so it is widely used in daily life. For example, water heaters and gas stoves are common devices in daily life that use gas as kinetic energy.

[0003] However, in order to avoid some common accidents in gas use, valves for fluid control are generally installed in the transmission paths of both natural gas and liquefied gas. For example, in order to prevent the pipeline of one gas cylinder in a collective gas pipeline from breaking and causing the gas from the remaining gas cylinders to flow into the broken pipeline through the collective pipe, a check valve is installed between the collective pipe and each gas cylinder. In other cases, in order to immediately block the gas from leaking from the source when the pipeline is broken, an overflow valve is used in the gas pipeline.

[0004] Whether it's a check valve or a check valve, the common practice in current products on the market is to install a ball inside to control the flow according to the design purpose. However, current products that use a ball to control fluid have installation angle restrictions. Otherwise, the ball is prone to shaking inside the product when not performing fluid blocking control, thereby disrupting the stability of the fluid flowing through the valve body.

[0005] Summary of the Invention

[0006] The fixed ball holder of the present application is provided with a magnet at the placement end. Therefore, when the fixed ball holder is set on the valve body and the magnet is facing the magnetic ball, the magnetic ball can be attracted by the magnet and lean against the placement end. When the fluid flows through the magnetic ball, if the thrust generated by the fluid is greater than the suction force between the magnet and the magnetic ball, the magnetic ball will separate from the placement end and perform superflow fluid and counterflow fluid blocking. When the abnormality is resolved and the thrust of the magnetic ball separating from the placement end disappears, the magnetic ball will return to the state of being pressed against the placement end due to the magnetic attraction of the magnet. Therefore, it can be known that after the fixed ball holder is indeed set on the valve body, the magnetic ball will be pressed against the placement end due to the magnetic attraction of the magnet when the fluid blocking control is not performed, and therefore will not move at will.

[0007] 20. The diaphragm according to claim 19, wherein the air filter comprises a first air vent and a second air vent, wherein the first air vent and the second air vent are connected via a through-hole, wherein the through-hole comprises a through-hole, and the like.

[0008] Furthermore, the mounting end of the ball holder has a long mounting hole, the inner wall of the long mounting hole has a thread, and one end of the magnet is provided with a screw matching the thread of the inner wall of the long mounting hole.

[0009] Furthermore, the screw has an operating groove on one side facing the connecting end.

[0010] Furthermore, the magnet is located at the center of the placement end.

[0011] The present application also provides a ball fixing rack that can be set on a traditional fluid control valve, wherein: the opposite ends of the ball fixing rack are respectively a placement end and a connection end, the connection end has an end through hole, the ball fixing rack has a side through hole at the position between the placement end and the connection end, the side through hole is connected to the end through hole, and the placement end is provided with a magnet.

[0012] Furthermore, the mounting end of the ball holder has a long mounting hole, the inner wall of the long mounting hole has a thread, and one end of the magnet is provided with a screw matching the thread of the inner wall of the long mounting hole.

[0013] Furthermore, the screw has an operating groove on one side facing the connecting end.

[0014] Furthermore, the magnet is located at the center of the placement end.

[0015] Furthermore, the side through holes are plural in number and arranged in a ring shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of a ball-fixing rack.

[0017] Figure 2 is a schematic diagram of the decomposition of the ball bracket.

[0018] FIG3 is a schematic cross-sectional view of line segment III-III in FIG1 .

[0019] FIG4 is an embodiment of a valve body according to the present application.

[0020] FIG5 is a schematic cross-sectional view of line segment VV in FIG4 .

[0021] FIG6 is a schematic diagram showing the magnetic ball being pushed away from the mounting end by the fluid.

[0022] FIG. 7 shows another embodiment of the valve body of the present application.

[0023] FIG8 is a schematic diagram of another embodiment of the valve body of the present application, in which the magnetic ball is pushed away from the mounting end by the fluid.

[0024] FIG9 is a three-dimensional schematic diagram of another state of the ball fixing frame.

[0025] Figure 10 is a schematic diagram of another decomposition state of the fixed ball frame.

[0026] FIG11 is a schematic cross-sectional view of line segment XI-XI in FIG9 .

[0027] FIG12 is a schematic diagram of adjusting the position of the magnet member.

[0028] Explanation of symbols:

[0029] Valve body:

[0030] 11 first vent portion; 12 second vent portion; 13 first valve air passage; 14 annular retaining portion; 141 second valve air passage;

[0031] 142 leak-proof ring;

[0032] Fixed ball rack:

[0033] 21: mounting end; 211: mounting slot; 22: connecting end; 221: end through hole; 23: side through hole; 24: magnet; 25: screw;

[0034] 251 operation slots. DETAILED DESCRIPTION

[0035] The present application will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present application and implement it, but the embodiments are not intended to limit the present application.

[0036] As shown in Figures 1 to 3, a ball fixing rack 2 is shown, wherein: the opposite ends of the ball fixing rack 2 are respectively a placement end 21 and a connection end 22, the connection end 22 has an end through hole 221, the ball fixing rack 2 has a side through hole 23 between the placement end 21 and the connection end 22, the side through hole 23 is connected to the end through hole 221, and the placement end 21 is provided with a magnet 24.

[0037] 4 and 5 , there is a valve body 1, which includes a first vent portion 11 and a second vent portion 12, and a first valve air channel 13 is provided between the first vent portion 11 and the second vent portion 12. The valve body 1 has an annular retaining portion 14 on the inner wall surface between the second vent portion 12 and the first valve air channel 13, and a second valve air channel 141 connected to the first valve air channel 13 passes through the annular retaining portion 14; the connecting end 22 of the fixed ball rack 2 is connected to the inner wall of the first vent portion 11, and the placement end 21 faces the annular retaining portion 14; a magnetic ball 3 is movably arranged in the first valve air channel 13 and is located between the annular retaining portion 14 and the placement end 21.

[0038] The material of the magnetic ball 3 can be iron, cobalt, nickel or other magnetic materials. The magnetic material does not necessarily have magnetism, but when it is close to a magnet, it will be magnetized and thus have magnetism. Therefore, the magnet member 24 can attract the magnetic ball 3 with magnetic force.

[0039] The annular retaining portion 14 may include a leak-proof ring 142 .

[0040] 5 , the mounting end 21 of the ball fixing rack 2 is provided with a magnet 24 . Therefore, when the ball fixing rack 2 is set on the valve body 1 and the magnet 24 faces the magnetic ball 3 , the magnetic ball 3 can be pressed against the mounting end 21 due to the magnetic attraction of the magnet 24 . When the fluid flows through the magnetic ball 3 , if the thrust generated by the fluid is greater than the attraction between the magnet 24 and the magnetic ball 3 , the magnetic ball 3 will separate from the mounting end 21 and perform superflow and counterflow fluid blocking. When the abnormality is resolved and the thrust of the magnetic ball 3 separating from the mounting end 21 disappears, the magnetic ball 3 will return to the state of being pressed against the mounting end 21 due to the magnetic attraction of the magnet 24 . Therefore, it can be known that after the ball fixing rack 2 is indeed set on the valve body 1 , the magnetic ball 3 is pressed against the mounting end 21 due to the magnetic attraction of the magnet 24 when the fluid blocking control is not performed, and therefore will not move arbitrarily.

[0041] The type of fluid control performed by the valve body 1 is primarily determined by the normal flow of the fluid inlet and outlet. As shown in FIG5 , the normal flow direction of the fluid is as indicated by the arrows in the figure, with the first vent 11 as the fluid outlet and the second vent 12 as the fluid inlet. In this state, the fluid control function of the valve body 1 is that of a check valve. Therefore, when the fluid flows in the reverse direction indicated by the arrows in FIG6 and the thrust generated by the fluid exceeds the attraction between the magnet 24 and the magnetic ball 3, the magnetic ball 3 will detach from the mounting end 21 and block the connection between the first valve air passage 13 and the second valve air passage 141.

[0042] Furthermore, when the device is used for a liquefied gas manifold, when the liquefier is shut down, the fluid inside the manifold will flow back because its thrust is insufficient to separate the magnetic ball 3 from the mounting end 21. Therefore, part of the fluid inside the manifold can flow back smoothly to avoid accumulation inside the manifold, thereby reducing the risk of the manifold bursting.

[0043] If the normal flow direction of the fluid in the valve body 1 is as shown in FIG7 , as indicated by the arrow, the first vent portion 11 is the fluid inlet and the second vent portion 12 is the fluid outlet. During normal fluid flow, the thrust is insufficient to disengage the magnetic ball 3 from the mounting end 21 . In this state, the fluid control of the valve body is a superfluid valve. In the event of an accident, such as a rupture in the rear-end pipeline, the thrust of the fluid in the pipeline will instantly increase, and the thrust will be sufficient to disengage the magnetic ball 3 from the mounting end 21 , as shown in FIG8 , thereby blocking the connection between the first valve air passage 13 and the second valve air passage 141 and preventing further leakage of the fluid in the event of an accident.

[0044] From the above, it can be seen that the ball fixing bracket 2 of the present application can make the magnetic ball 3 lean against the placement end 21 due to the magnetic attraction of the magnet 24 when the fluid blocking control is not performed, regardless of the type of fluid control valve body 1 it is used for. Under this technology of fixing the position of the magnetic ball 3 with magnetic force, the magnetic ball 3 will not move when the fluid blocking control is not performed, regardless of the angle at which the valve body 1 is installed in the target position, which can indeed improve the problems of traditional products.

[0045] 9 to 11 , the mounting end 21 of the ball holder 2 has a mounting long hole 211 , the inner wall of the mounting long hole 211 has a thread, and one end of the magnet member 24 is provided with a screw member 25 that matches the inner wall thread of the mounting long hole 211 , and the screw member 25 has an operating groove 251 on the side facing the connecting end 22 , and the shape of the operating groove 251 can be a hexagonal, flat, cross, etc. In this embodiment, the operating groove 251 is an example of a hexagonal shape. Such a structure enables the user to adjust the position of the magnet member 24 in the mounting long hole 211 by inserting a hand tool into the operating groove 251 as shown in FIG12 , thereby changing the distance between the magnetic ball 3 and the magnet member 24 when the magnetic ball 3 is against the mounting end 21 , and thereby adjusting the force required to push the magnetic ball 3 away from the mounting end 21 .

[0046] The above-described embodiments are merely preferred embodiments for the purpose of fully illustrating the present application, and the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art based on the present application are within the scope of protection of the present application. The scope of protection of the present application shall be subject to the claims.

Claims

1. A fluid control valve, comprising: A valve body, comprising a first vent portion and a second vent portion, a first valve air passage being provided between the first vent portion and the second vent portion, an annular stopper being provided on the inner wall surface of the valve body between the second vent portion and the first valve air passage, and a second valve air passage communicating with the first valve air passage passing through the annular stopper; A ball fixing frame, whose two opposite ends are respectively a placement end and a connection end, the connection end having an end through hole, the ball fixing frame having a side through hole at a position between the placement end and the connection end, the side through hole being respectively connected to the first valve airway and the end through hole, the placement end being provided with a magnet, the connection end being connected to the inner wall of the first vent portion, and the placement end facing the annular blocking portion; A magnetic ball is movably disposed in the first valve air passage and located between the annular blocking portion and the placement end.

2. The fluid control valve as described in claim 1, wherein the mounting end of the ball holder has a long mounting hole, the inner wall of the long mounting hole has a thread, and one end of the magnet member is provided with a screw member matching the thread of the inner wall of the long mounting hole.

3. The fluid control valve as claimed in claim 2, wherein the screw has an operating groove on a side facing the connecting end.

4. The fluid control valve as claimed in claim 1, wherein the magnet is located at a center position of the placement end.

5. A ball holder for a fluid control valve, wherein: The two opposite ends of the ball fixing bracket are respectively a placement end and a connection end, the connection end has an end through hole, the ball fixing bracket has a side through hole between the placement end and the connection end, the side through hole is connected to the end through hole, and a magnet is arranged on the placement end.

6. A ball holder for a fluid control valve as described in claim 5, wherein the mounting end of the ball holder has a long mounting hole, the inner wall of the long mounting hole has a thread, and one end of the magnet component is provided with a screw matching the thread of the inner wall of the long mounting hole.

7. The ball holder of a fluid control valve as described in claim 6, wherein the screw has an operating groove on one side facing the connecting end.

8. The ball holder for a fluid control valve as claimed in claim 5, wherein the magnet is located at the center of the placement end.

9. The ball holder for a fluid control valve as described in claim 5, wherein the side through holes are plural in number and arranged in a ring shape.

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