A magnetic filter ball valve

Abstract

The utility model relates to the technical field of valves, and specifically to a magnetic filter ball valve, wherein a filter screen is vertically arranged upward at the center of a bottom cover, and the filter screen is sealed and fitted with the inner wall of a valve ball; a notch is arranged on one side of the filter screen, and the notch is connected with a through hole of the ball valve; the filter screen is densely covered with sieve holes, and a sink groove is arranged at the upper end of the inner part of the valve ball; the utility model is threadedly connected to the valve body through the bottom cover, and a filter screen is arranged inside the valve ball, so that impurities in the fluid can be filtered, and then the fluid is discharged from the other side of the filter screen; impurities are retained inside the filter screen, and because of the threaded connection, it is convenient and quick to replace or clean the filter screen; and a magnetic component is arranged inside the filter screen, so that magnetic impurities in the fluid can be adsorbed in a protective cover.

Description

Technical Field

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

[0002] A ball valve is a valve whose spherical valve core is driven by a valve stem and rotates around its axis. It is generally used to regulate and control fluid flow. Ball valves are usually installed in fluid pipelines. During the transportation process within the pipeline, a certain amount of impurities will inevitably be contained. Although some equipment is equipped with a filter device, if the conveyed medium is not initially filtered, the filter device will easily clog, shortening its service life. In addition, the replacement process of the filter device within the equipment is usually cumbersome and expensive. Therefore, if a filter structure is added to the ball valve used to control the flow of the medium, effective preliminary filtration can be achieved. The overall structure of the ball valve is simple, and the design of the filter structure is more convenient. Summary of the Invention

[0003] According to the problems raised in the background technology, the present invention provides a magnetic filter ball valve to solve the problems. The present invention will be further described below.

[0004] A magnetic filter ball valve comprises a valve body, a valve ball, a valve stem, and a handle. The valve ball is a spherical structure disposed inside the valve body and seals against the inner wall of the valve body. The center of the valve ball has a through hole for medium circulation. The top of the valve ball is fixedly connected to the valve stem. The valve stem extends vertically out of the valve body and is fixed with a handle on the top. The bottom of the valve body extends downward to form a mounting port. The mounting port and the valve body are an integrated structure. The mounting port has threads on the outside. A bottom cover is provided at the mounting port and is fixed to the valve body by threads.

[0005] A filter screen is vertically arranged in the center of the bottom cover, and the filter screen is sealed against the inner wall of the valve ball; a notch is provided on one side of the filter screen, and the notch is connected to the through hole of the ball valve; the filter screen is densely covered with sieve holes, and a sink is provided on the upper end of the valve ball;

[0006] Preferably, a magnetic rod assembly is provided at the upper end of the bottom cover, the magnetic rod assembly is placed in a protective cover at the upper end of the bottom cover, the protective cover is integrated with the bottom cover, and the magnetic rod assembly is threadedly connected to the protective cover;

[0007] Preferably, a protective plate is provided at the notch;

[0008] Preferably, the bottom of the filter is provided with two ears, and the ears are located in the groove formed by the valve body and the bottom cover;

[0009] Preferably, a sealing ring is provided on the mating surface between the bottom cover and the valve body;

[0010] Preferably, the handle is sleeved on the top of the valve stem and fixed by a nut, and an anti-slip sleeve is provided on the handle;

[0011] Preferably, a pressure cap is provided at the upper end of the valve stem, the pressure cap is threadedly connected to the upper end of the valve body, and a packing is provided at the lower end of the pressure cap;

[0012] Preferably, a sealing seat is provided between the valve ball and the valve body;

[0013] Beneficial effects: Compared with the prior art, the present invention is threadedly connected to the valve body through the bottom cover, and a filter is provided inside the valve ball, which can filter impurities in the fluid, and then the fluid is discharged from the other side of the filter; impurities remain inside the filter, and the threaded connection makes it convenient and quick to replace or clean the filter; and a magnetic component is provided inside the filter, which can adsorb magnetic impurities in the fluid into the protective cover; BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 : Schematic diagram of the structure of the utility model;

[0015] Figure 2 : Schematic diagram of the combined structure of the magnetic rod assembly and the bottom cover;

[0016] Figure 3 : An enlarged schematic diagram of the structure at A of the utility model;

[0017] In the figure: valve body 1, valve ball 2, valve stem 3, handle 4, mounting port 5, bottom cover 6, filter screen 7, notch 8, sink 9, magnetic rod assembly 10, protective cover 11, protective plate 12, lug 13, groove 14, sealing ring 15, nut 16, pressure cap 17, packing 18, sealing seat 19; DETAILED DESCRIPTION

[0018] Next, a specific embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0019] A magnetic filter ball valve comprises a valve body 1, a valve ball 2, a valve stem 3, and a handle 4. The valve ball 2 is a spherical structure disposed inside the valve body 1 and sealingly fitted with the inner wall of the valve body 1. The center of the valve ball 2 has a through hole for medium circulation, and the top of the valve ball 2 is fixedly connected to the valve stem 3; the valve stem 3 extends vertically out of the valve body 1 and is fixed with a handle 4 on the top. The ball valve transmits torque to the valve core through the handle 4 in conjunction with the valve stem 3. The rotation amplitude of the handle 4 is 90 degrees. When the through hole of the valve ball 2 is connected to the interfaces at both ends of the valve body 1, the ball valve is in a conducting state. When the through hole is perpendicular to the inner wall of the valve body 1, the ball valve is in a shut-off state. The flow rate of the ball valve can be controlled by controlling the cross-sectional area of ​​the through hole and the flow channel inside the valve body 1.

[0020] Specifically, the bottom of the valve body 1 extends downward to form a mounting port 5, which is an integral structure with the valve body 1. The outside of the mounting port 5 is threaded, and a bottom cover 6 is provided at the mounting port 5. The bottom cover 6 is fixed to the valve body 1 by threaded cooperation. A filter screen 7 is vertically upwardly provided at the center of the bottom cover 6, and the filter screen 7 is sealed and fitted with the inner wall of the valve ball 2; a notch 8 is provided on one side of the filter screen 7, and the notch 8 is connected to the through-hole of the ball valve 2; the filter screen 7 is densely covered with sieve holes, and a sink groove 9 is provided on the upper end of the interior of the valve ball 2. The filter screen 7 is placed in the sink groove 9 and the upper end of the bottom cover 6 to limit the vertical freedom of the filter screen 7 to prevent shaking when the fluid impacts the filter screen; when the fluid flows into the filter screen from the valve body 1, the sieve holes on the filter screen will filter the impurities in the fluid, and then the fluid is discharged from the other side of the filter screen; the impurities remain inside the filter screen, and the bottom cover 6 is threadedly connected to the mounting port 5, which is convenient and quick to replace or clean the filter screen;

[0021] The filter screen 7 is made by injection molding process;

[0022] The impurities retained by the filter enter and accumulate at the filter 7 under the flushing of the fluid, and the bottom cover can be opened regularly for sewage treatment. The volume of impurities that can be retained by the filter is related to the aperture of the sieve. In practice, there are a small amount of magnetic impurities such as iron filings in the impurities, which are characterized by being small in volume and unable to be filtered by reducing the aperture of the sieve. This embodiment achieves the adsorption and removal of magnetic impurities through a magnetic rod assembly 10. The specific solution is as follows: a magnetic rod assembly 10 is provided at the upper end of the bottom cover 6, and the magnetic rod assembly 10 is placed in a protective cover 11 at the upper end of the bottom cover 6. The protective cover 11 is integrated with the bottom cover 6, and the magnetic rod assembly 10 is threadedly connected to the protective cover 11;

[0023] The magnetic rod assembly can generate a large magnetic field to absorb magnetic impurities in the fluid; this technology is existing technology and will not be elaborated on here;

[0024] That is, the magnetic rod assembly 10 forms a relatively uniform magnetic field in the filter screen, thereby increasing the adsorption capacity of magnetic field impurities in the fluid. The magnetic impurities in the fluid are magnetized and adsorbed on the protective cover 11.

[0025] It should be noted that this application is highly integrated with multiple functions, and the volume and space have been precisely calculated and designed. At this time, the size of the magnetic rod in the center is particularly important. We know that in the same magnetic field, the denser the magnetic flux lines are, that is, the more magnetic flux lines there are passing through a unit area, the greater the magnetic induction intensity B. Therefore, the larger B is, the larger S is, the more magnetic flux lines there are passing through this surface, and the greater the magnetic flux. Therefore, the original core characteristics are changed;

[0026] As mentioned above, a notch 8 is provided on one side of the filter screen 7. In order to prevent the fluid from impacting the notch of the filter screen and causing the filter screen to tear from the notch, a protective plate 12 is provided at the notch 8 in the present application.

[0027] In this embodiment, two ears 13 are provided at the bottom of the filter screen 7. The ears 13 are located in the groove 14 formed by the valve body 1 and the bottom cover 6, further limiting the vertical freedom of the filter screen 7.

[0028] In this embodiment, a sealing ring 15 is provided on the mating surface of the bottom cover 6 and the valve body 1. This structure is used to fix the valve body 1 and the bottom cover 6, and cooperates with the sealing ring 15 to prevent the medium from overflowing from the inside of the valve body 1; the sealing ring 15 is made of EPDM material.

[0029] In this embodiment, the handle 4 is sleeved on the top of the valve stem 3 and fixed by a nut 16. An anti-slip sleeve is provided on the handle 4. This structure can make the installation and fixation of the handle 4 more convenient. The handle 4 is easily corroded and broken after being used for too long. This structure can facilitate the replacement of the handle 4. Furthermore, the anti-slip sleeve is used to increase the friction on the outside of the handle 4.

[0030] In this embodiment, a pressure cap 17 is further provided at the upper end of the valve stem 3. The pressure cap 17 is threadedly connected to the upper end of the valve body 1, and a packing 18 is provided at the lower end of the pressure cap 17 to play a sealing role. The pressure cap 17 is made of copper, and the packing is made of PTFE.

[0031] In this embodiment, a sealing seat 19 is provided between the valve ball 2 and the valve body 1 to play an internal sealing role. The sealing seat 19 is made of PTFE material.

[0032] The filter screen in this application is a three-way connection to the valve body. Its upper end is aligned with the top of the countersunk hole, and its lower end faces downward, functioning as a sewage drain. Two lugs on the flat surface prevent the screen from rotating. The center hole aligns with the water inlet, allowing water to flow into the filter screen from this point. Non-magnetic impurities are trapped by the filter screen, while magnetic impurities are attracted by the magnetic assembly. Water then flows out the back of the filter screen.

[0033] Compared with the prior art, the present invention is connected to the valve body through a threaded connection via the bottom cover, and a filter is provided inside the valve ball to filter impurities in the fluid, and the fluid is then discharged from the other side of the filter; impurities remain inside the filter, and the threaded connection makes it easier and quicker to replace or clean the filter; and a magnetic component is provided inside the filter to adsorb magnetic impurities in the fluid into the protective cover;

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A magnetic filter ball valve, comprising a valve body (1), a valve ball (2), a valve stem (3), and a handle (4), wherein the valve ball (2) is a spherical structure arranged inside the valve body (1) and sealingly matched with the inner wall of the valve body (1), the center of the valve ball (2) has a through hole for medium circulation, and the top of the valve ball (2) is fixedly connected to the valve stem (3); the valve stem (3) vertically extends out of the valve body (1) and a handle (4) is fixed on the top; the bottom of the valve body (1) extends downward to form a mounting opening (5), the mounting opening (5) and the valve body (1) are an integrated structure, the outside of the mounting opening (5) has a thread, a bottom cover (6) is provided at the mounting opening (5), and the bottom cover (6) is fixed to the valve body (1) by threaded matching; Features: A filter screen (7) is vertically arranged at the center of the bottom cover (6), and the filter screen (7) is sealed and fitted with the inner wall of the valve ball (2); a notch (8) is arranged on one side of the filter screen (7), and the notch (8) is connected with the through hole of the valve ball (2); the filter screen (7) is densely covered with sieve holes, and a sink (9) is arranged at the upper end of the inside of the valve ball (2).

2. A magnetic filter ball valve according to claim 1, characterized in that: A magnetic bar assembly (10) is provided at the upper end of the bottom cover (6); the magnetic bar assembly (10) is placed in a protective cover (11) at the upper end of the bottom cover (6); the protective cover (11) and the bottom cover (6) are integrally arranged, and the magnetic bar assembly (10) and the protective cover (11) are threadedly connected.

3. A magnetic filter ball valve according to claim 1, characterized in that: A protection plate (12) is provided at the notch (8).

4. A magnetic filter ball valve according to claim 1, characterized in that: The bottom of the filter screen (7) is provided with two ears (13), and the ears (13) are located in a groove (14) formed by the valve body (1) and the bottom cover (6).

5. The magnetic filter ball valve according to claim 1, characterized in that: The bottom cover (6) and the valve body (1) are provided with a sealing ring (15) on the matching surface.

6. The magnetic filter ball valve according to claim 1, characterized in that: The handle (4) is sleeved on the top of the valve stem (3) and fixed by a nut (16); an anti-slip sleeve is provided on the handle (4).

7. The magnetic filter ball valve according to claim 1, characterized in that: A pressure cap (17) is also provided at the upper end of the valve stem (3), the pressure cap (17) is threadedly connected to the upper end of the valve body (1), and a packing (18) is provided at the lower end of the pressure cap (17).

8. The magnetic filter ball valve according to claim 1, characterized in that: A sealing seat (19) is also provided between the valve ball (2) and the valve body (1).

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