Magnetic filtering device

Abstract

The utility model relates to the technical field of filtering equipment, and discloses a magnetic filtering device. The magnetic filtering device comprises an outer shell and a magnetic attraction assembly, a containing cavity is formed in the outer shell, and a fluid inlet and outlet communicated with the containing cavity is formed in the outer shell; the magnetic attraction assembly comprises an installation sleeve and a magnet arranged on the installation sleeve, the installation sleeve is arranged outside the outer shell in a sleeving mode, the projection of the installation sleeve on the longitudinal section passing through the central axis of the outer shell coincides with the projection of the fluid inlet and outlet on the longitudinal section, and the longitudinal section is perpendicular to the central axis of the fluid inlet and outlet. According to the magnetic filtering device, the magnet can be conveniently disassembled and assembled, magnetic impurities can be conveniently discharged, and the situation that the adsorption capacity of the magnet is weakened due to frequent impact of fluid can be avoided.

Description

Technical Field

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

[0002] In fluid conveying pipelines such as those in kitchens, bathrooms or floor heating, especially in pipelines for conveying hot water, there are inevitably magnetic impurities such as rust. The accumulation of these impurities may cause blockage of the pipeline, resulting in a large resistance to fluid conveyance, and even affecting the service life of the equipment on the pipeline. Therefore, a magnetic filtering device is usually provided on the conveying pipeline to filter the water body.

[0003] The magnetic filtering devices in related technologies usually include a filter main body and a magnet disposed in the chamber of the filter main body. The filter main body is also provided with a water inlet, a water outlet and a sewage outlet that are all communicated with its chamber. The fluid impacts on the magnet through the water inlet. After the magnet adsorbs the magnetic impurities, it is discharged from the water outlet. After using for a period of time, the operator can take out the magnet from the chamber, so that the iron-containing impurities inside the chamber lose the adsorption force, and thus they are discharged from the sewage outlet under their own gravity. The above settings usually have the following problems: 1) Since the magnet is disposed inside the filter main body, when it is necessary to discharge the iron-containing impurities, the operator needs to open the filter main body to take out the magnet, and the operation is relatively cumbersome; 2) During actual use, the fluid frequently impacts the magnet when entering the chamber of the filter main body from the water inlet, resulting in a weakened ability of the magnet to adsorb magnetic impurities, shortening the service life of the magnet, and affecting the filtering performance of the magnetic filtering device.

[0004] Therefore, there is an urgent need to propose a magnetic filtering device to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a magnetic filtering device, which is convenient for the disassembly and assembly of the magnet, facilitates the discharge of iron-containing impurities, and can avoid the situation that the adsorption ability of the magnet is weakened due to frequent impact of the fluid.

[0006] Based on the above concept, the technical solution adopted by the utility model is as follows:

[0007] A magnetic filtering device, comprising:

[0008] An outer housing having an accommodation cavity therein, and a fluid inlet and outlet provided on the outer housing and communicated with the accommodation cavity;

[0009] The magnetic attraction assembly includes a mounting sleeve and a magnet disposed on the mounting sleeve. The mounting sleeve is detachably sleeved outside the housing body. The projection of the mounting sleeve on the longitudinal section passing through the central axis of the housing body coincides with a part of the projection of the fluid inlet and outlet on the longitudinal section, where the longitudinal section is perpendicular to the central axis of the fluid inlet and outlet.

[0010] As a preferred solution of the magnetic filtration device provided by the present utility model, the mounting sleeve is a C-shaped ring, and the C-shaped ring is snap-fitted to the outer wall of the housing body.

[0011] As a preferred solution of the magnetic filtration device provided by the present utility model, a card slot is provided on one of the inner wall of the mounting sleeve and the outer wall of the housing body, and a card convex that is snap-fitted with the card slot is provided on the other.

[0012] As a preferred solution of the magnetic filtration device provided by the present utility model, a pick-and-place opening for picking and placing the mounting sleeve is provided on one side of the card slot.

[0013] As a preferred solution of the magnetic filtration device provided by the present utility model, a limiting step is provided on the outer wall of the housing body, and the limiting step can abut against the mounting sleeve.

[0014] As a preferred solution of the magnetic filtration device provided by the present utility model, a mounting groove for mounting the magnet is provided on the mounting sleeve.

[0015] As a preferred solution of the magnetic filtration device provided by the present utility model, an avoidance opening is provided on one side of the mounting groove facing the housing body, so that part of the magnet is exposed outside the mounting groove.

[0016] As a preferred solution of the magnetic filtration device provided by the present utility model, the magnetic filtration device further includes a three-way valve assembly, and the three-way valve assembly includes:

[0017] A three-way valve body, which has a liquid inlet, a liquid outlet and a connection interface on the three-way valve body, and the connection interface is hermetically connected to the fluid inlet and outlet;

[0018] A three-way valve core, which is disposed in the three-way valve body and partially passes through the connection interface and extends into the accommodation cavity. The outlet of the three-way valve core forms a fluid inlet, and the interval between the three-way valve core and the fluid inlet and outlet forms a fluid outlet.

[0019] As a preferred solution of the magnetic filtration device provided by the present utility model, the projection of the mounting sleeve on the longitudinal section completely covers the projection of the fluid inlet on the longitudinal section.

[0020] As a preferred embodiment of the magnetic filtering device provided by the present utility model, the magnetic filtering device further includes a sewage discharge assembly. A sewage discharge channel communicating with the accommodation cavity is provided at the bottom of the outer housing. The sewage discharge assembly is configured to selectively open the sewage discharge channel so that when the magnetic attraction assembly is detached from the outer housing, the fluid containing magnetic impurities in the accommodation cavity can be discharged from the sewage discharge channel.

[0021] As a preferred embodiment of the magnetic filtering device provided by the present utility model, the outer housing includes a base and a main body detachably disposed on the base. The fluid inlet / outlet and the magnetic attraction assembly are both disposed on the main body.

[0022] The beneficial effects of the present utility model are as follows:

[0023] The present utility model provides a magnetic filtering device. By sleeving the mounting sleeve provided with a magnet outside the outer housing, it is convenient for the operator to disassemble and assemble the magnetic attraction assembly. When it is necessary to discharge the iron-containing impurities in the accommodation cavity of the outer housing, the operator can detach the magnetic attraction assembly without opening the outer housing, reducing the workload of the operator. Since the magnetic attraction assembly is installed outside the outer housing, the fluid flowing into the accommodation cavity will not frequently impact the magnet, which can extend the service life of the magnet and ensure the magnetic adsorption effect of the magnetic filtering device. In addition, by setting that the projection of the mounting sleeve on the longitudinal section passing through the central axis of the outer housing and the projection of the fluid inlet / outlet on the longitudinal section overlap, the fluid flowing into the accommodation cavity from the fluid inlet / outlet is within the range where the magnet has a strong magnetic force, thus ensuring the magnetic adsorption effect of the magnet on the iron-containing impurities in the fluid. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of the magnetic filtering device provided by an embodiment of the present utility model;

[0025] Figure 2 is a schematic cross-sectional view of the magnetic filtering device provided by an embodiment of the present utility model from a perspective;

[0026] Figure 3 is a schematic structural diagram of the main body provided by an embodiment of the present utility model;

[0027] Figure 4 is a schematic structural diagram of the mounting sleeve provided by an embodiment of the present utility model;

[0028] Figure 5 is a schematic structural diagram of the magnetic attraction assembly provided by an embodiment of the present utility model;

[0029] Figure 6 is a schematic cross-sectional view of the main body provided by an embodiment of the present utility model;

[0030] Figure 7 It is a schematic structural diagram of a three-way valve assembly provided by an embodiment of the present utility model;

[0031] Figure 8 It is a schematic cross-sectional view of a three-way valve assembly provided by an embodiment of the present utility model;

[0032] Figure 9 It is a schematic structural diagram of a base provided by an embodiment of the present utility model;

[0033] Figure 10 It is a schematic cross-sectional view of a base provided by an embodiment of the present utility model;

[0034] Figure 11 It is a schematic cross-sectional view of a magnetic filtering device provided by an embodiment of the present utility model from another perspective;

[0035] Figure 12 is Figure 11 a partial structural schematic diagram of.

[0036] In the figure:

[0037] 10. Longitudinal section;

[0038] 100. Outer housing; 1001. Accommodation cavity; 1002. Sealing port; 110. Main body; 111. Fluid inlet and outlet; 112. Card slot; 1121. Access port; 113. Limit step; 120. Base; 121. Drainage channel; 122. Second seal; 123. Third seal; 124. Fourth seal;

[0039] 200. Magnetic attraction assembly; 210. Installation sleeve; 211. Card convex; 212. Installation groove; 2121. Avoidance port; 213. Weight reduction hole; 220. Magnet;

[0040] 300. Mesh filter element;

[0041] 400. Three-way valve assembly; 410. Three-way valve body; 411. Liquid inlet; 412. Liquid outlet; 413. Connection interface; 420. Three-way valve core; 430. Water inlet joint; 440. First seal;

[0042] 500. Drainage assembly; 510. Regulating valve rod; 520. Regulating valve core; 521. Communication channel; 530. Handle; 540. Installation seat; 550. Drainage interface. Detailed implementation manners

[0043] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0044] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0046] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0047] This embodiment provides a magnetic filtration device, which is applied to fluid conveying pipelines such as in kitchens, bathrooms, or floor heating. This magnetic filtration device is used to filter iron-containing impurities in the fluid in the conveying pipeline to prevent pipeline blockage caused by the accumulation of iron-containing impurities, thereby being able to extend the service life of the fluid conveying pipeline. The following will introduce the specific structure of the magnetic filtration device provided in this embodiment with reference to the accompanying drawings.

[0048] Figure 1 The structural schematic diagram of the magnetic filtration device provided in this embodiment is shown. Figure 2 The cross-sectional schematic diagram of the magnetic filtration device provided in this embodiment from one perspective is shown. AsFigure 1 - Figure 2 As shown in the figure, this embodiment provides a magnetic filtering device, which includes an outer housing 100 and a magnetic attraction assembly 200. Among them, an accommodation cavity 1001 is provided inside the outer housing 100, and a fluid inlet and outlet 111 communicating with the accommodation cavity 1001 is provided on the outer housing 100; the magnetic attraction assembly 200 includes an installation sleeve 210 and a magnet 220 arranged on the installation sleeve 210. The installation sleeve 210 is sleeved outside the outer housing 100, and there is an overlapping part between the projection of the installation sleeve 210 on the longitudinal section 10 passing through the central axis of the outer housing 100 and the projection of the fluid inlet and outlet 111 on the longitudinal section 10. Among them, the longitudinal section 10 is perpendicular to the central axis of the fluid inlet and outlet 111, that is, the fluid inlet and outlet 111 generates a positive projection on the longitudinal section 10.

[0049] For the magnetic filtering device provided in this embodiment, by sleeving the installation sleeve 210 provided with the magnet 220 outside the outer housing 100, it is convenient for the operator to disassemble and assemble the magnetic attraction assembly 200. When it is necessary to discharge the iron-containing impurities in the accommodation cavity 1001 of the outer housing 100, the operator can remove the magnetic attraction assembly 200 without opening the outer housing 100, reducing the workload of the operator; since the magnetic attraction assembly 200 is installed outside the outer housing 100, therefore, the fluid flowing into the accommodation cavity 1001 will not frequently impact the magnet 220, which can extend the service life of the magnet 220 and ensure the magnetic adsorption effect of the magnetic filtering device; in addition, by setting that there is an overlapping part between the projection of the installation sleeve 210 on the longitudinal section 10 passing through the central axis of the outer housing 100 and the projection of the fluid inlet and outlet 111 on the longitudinal section 10, the fluid flowing into the accommodation cavity 1001 from the fluid inlet and outlet 111 is within the range where the magnet 220 has a strong magnetic force, so as to ensure the magnetic adsorption effect of the magnet 220 on the iron-containing impurities in the fluid.

[0050] As Figure 2 shown, a mesh filter 300 is also provided in the accommodation cavity 1001. By providing the mesh filter 300, on the one hand, it can filter the flocculent impurities in the fluid flowing into the accommodation cavity 1001; on the other hand, it can also play a buffering role to reduce the flow rate of the fluid in the accommodation cavity 1001, so that the fluid stays in the accommodation cavity 1001 for a long time, which is beneficial to making more impurities pass through the mesh filter 300 for filtration, and thus achieving a better filtration effect. Optionally, the mesh filter 300 is specifically a buffer mesh.

[0051] Figure 3 shows the structural schematic diagram of the main body 110 provided in this embodiment. As Figure 3 and in combination with Figure 2As shown, the outer housing 100 includes a base 120 and a main body 110 detachably disposed on the base 120. The fluid inlet / outlet 111 and the magnetic attraction assembly 200 are both disposed on the main body 110, and the accommodation cavity 1001 is formed inside the base 120 and the main body 110. This design can facilitate the disassembly and installation of the base 120 and the main body 110, and also facilitate the operator to clean the mesh filter 300 inside the outer housing 100. Optionally, the main body 110 is threadedly connected to the base 120, and the threaded connection has the advantages of convenient disassembly and assembly and stable connection.

[0052] Figure 4 The structural schematic diagram of the mounting sleeve 210 provided in this embodiment is shown. As Figure 4 and in combination with Figure 2 、 Figure 3 shown, the mounting sleeve 210 is a C-shaped ring, and the C-shaped ring is snap-fitted to the outer wall of the outer housing 100, specifically to the outer wall of the main body 110. By setting the mounting sleeve 210 as a C-shaped ring, on the one hand, it is convenient for the disassembly and assembly of the mounting sleeve 210 and the main body 110, and only needs to open the C-shaped ring to sleeved on the outside of the main body 110; on the other hand, the notch of the C-shaped ring can also play a role in avoiding the fluid inlet / outlet 111, preventing interference between the mounting sleeve 210 and the fluid inlet / outlet 111.

[0053] In this embodiment, a card slot 112 is provided on the outer wall of the main body 110, and a card protrusion 211 is provided on the mounting sleeve 210 that is snap-fitted with the card slot 112 to achieve the stable connection between the mounting sleeve 210 and the main body 110. Of course, in other embodiments, the card protrusion 211 can also be provided on the outer wall of the main body 110, and the card slot 112 can be provided on the inner wall of the mounting sleeve 210, which can also achieve the above effects.

[0054] Optionally, the number of the card slots 112 is multiple, and the multiple card slots 112 are arranged at intervals along the circumferential direction of the outer housing 100, and each card slot 112 corresponds to a card protrusion 211 to further improve the connection stability between the mounting sleeve 210 and the main body 110.

[0055] To prevent the mounting sleeve 210 from being frequently opened and damaged during the disassembly and assembly with the main body 110, a placing opening 1121 for taking and placing the mounting sleeve 210 is provided on one side of the card slot 112. In this embodiment, the placing opening 1121 is located at the top of the main body 110, that is, the mounting sleeve 210 can be inserted or pulled out from above the main body 110 to achieve the installation and disassembly of the mounting sleeve 210 and the main body 110, thereby avoiding the damage of the mounting sleeve 210 caused by being frequently opened and extending the service life of the mounting sleeve 210. Of course, in other embodiments, the placing opening 1121 can also be provided below the main body 110, which can also achieve the above effects.

[0056] Optionally, a limiting step 113 is provided on the outer wall of the outer housing 100. The limiting step 113 can abut against the mounting sleeve 210 to limit the mounting sleeve 210. When the mounting sleeve 210 is mounted on the main body 110, when the mounting sleeve 210 abuts against the limiting step 113, it indicates that the two are mounted in place, serving as a reminder of the installation in place. In addition, after the installation is completed, the limiting step 113 can also limit the mounting sleeve 210 to prevent the mounting sleeve 210 from disengaging from the bottom of the main body 110.

[0057] Figure 5 The structural schematic diagram of the magnetic attraction assembly 200 provided in this embodiment is shown. As Figure 5 and in combination with Figure 4 shown, an installation groove 212 for installing the magnet 220 is provided on the mounting sleeve 210 to accommodate the magnet 220 and prevent the magnet 220 from falling off the mounting sleeve 210 during use, which affects the magnetic filtration effect of the magnetic filtration device. Optionally, the number of magnets 220 is multiple, and the multiple magnets 220 are arranged at intervals along the circumferential direction of the mounting sleeve 210. Each magnet 220 corresponds to an installation groove 212 to improve the magnetic filtration effect of the magnetic filtration device and ensure that the magnetic impurities in the fluid impacting at any position can be adsorbed. In addition, compared with a whole annular magnet 220, the above setting can also reduce the material used for the magnet 220 and lower the processing cost. Of course, in other embodiments, the magnet 220 can also be set as a whole annular structure, which can also achieve the above effects.

[0058] Optionally, an avoidance opening 2121 is provided on one side of the installation groove 212 facing the outer housing 100, so that part of the magnet 220 is exposed outside the installation groove 212. This design can, on the one hand, reduce the barrier between the magnet 220 and the accommodation cavity 1001, and on the other hand, enable the magnet 220 to be closer to the outer housing 100, thereby increasing the magnetic adsorption effect of the magnet 220 on the fluid in the accommodation cavity 1001. In this embodiment, when the magnetic attraction assembly 200 is mounted on the outer housing 100, the magnet 220 is in contact with the outer housing 100 to be closest to the outer housing 100 to achieve the best magnetic adsorption effect. Of course, in other embodiments, it can also be set that when the magnetic attraction assembly 200 is mounted on the outer housing 100, there is a gap between the magnet 220 and the outer housing 100. The specific size of the gap between the magnet 220 and the outer housing 100 in this embodiment is not limited, and designers can adjust it according to actual needs.

[0059] As Figure 4 and Figure 5 shown, at least one weight-reducing hole 213 is also provided on the mounting sleeve 210. On the one hand, it can reduce the weight of the magnetic attraction assembly 200 to facilitate its disassembly and assembly from the main body 110, and on the other hand, it can also reduce the material used for the mounting sleeve 210 and lower the processing cost.

[0060] Figure 6 Shows a cross-sectional schematic view of the main body 110 provided in this embodiment. Figure 7 Shows a structural schematic view of the three-way valve assembly 400 provided in this embodiment. Figure 8 Shows a cross-sectional schematic view of the three-way valve assembly 400 provided in this embodiment. As Figure 6 - Figure 8 And in combination with Figure 2 As shown, the magnetic filtration device further includes a three-way valve assembly 400. The three-way valve assembly 400 includes a three-way valve body 410 and a three-way valve core 420. The three-way valve body 410 has a liquid inlet 411, a liquid outlet 412, and a connection interface 413. The connection interface 413 is hermetically connected to the fluid inlet and outlet 111. The three-way valve core 420 is disposed within the three-way valve body 410 and partially passes through the connection interface 413 and extends into the accommodation cavity 1001. The outlet of the three-way valve core 420 forms a fluid inlet, and the gap between the three-way valve core 420 and the fluid inlet and outlet 111 forms a fluid outlet. By providing the three-way valve assembly 400, the connection between the magnetic filtration device and the pipeline can be realized. Among them, the liquid inlet 411 is connected to the inlet of the three-way valve core 420 to form a fluid inlet channel. The gap between the outer wall of the three-way valve core 420 and the connection interface 413 is connected to the liquid outlet 412 to form a fluid outlet channel. The fluid inlet channel, the fluid inlet, and the accommodation cavity 1001 are connected to each other so that the fluid in the pipeline flows into the accommodation cavity 1001. The fluid outlet, the fluid outlet channel, and the accommodation cavity 1001 are connected to each other so that the fluid flowing into the accommodation cavity 1001 flows out from the fluid outlet channel after being filtered by the mesh filter 300 and the magnetic attraction assembly 200.

[0061] By providing that the three-way valve core 420 extends into the accommodation cavity 1001, the distance between the three-way valve core 420 and the magnet 220 can be shortened to a certain extent. On the one hand, it can prevent the fluid in the three-way valve core 420 from flowing out through the fluid outlet channel before reaching the mesh filter 300, ensuring that most of the fluid in the three-way valve core 420 can flow to the mesh filter 300 for filtration, thereby ensuring that the magnetic filtration device has a good filtration effect on the fluid. On the other hand, since most of the fluid in the three-way valve core 420 will flow to the mesh filter 300, the fluid can continuously maintain a relatively large pressure, ensuring that the filtered fluid can still flow out through the fluid outlet channel with a relatively large pressure. In this embodiment, the specific length of the three-way valve core 420 is not limited, and the designer can adjust its length according to actual needs.

[0062] To further ensure the filtering performance of the magnetic filtering device, there is an overlapping part between the projection of the mounting sleeve 210 on the longitudinal section 10 and the projection of the fluid inlet on the longitudinal section 10. That is to say, the fluid flowing into the accommodating cavity 1001 from the fluid inlet (the outlet of the three-way valve core 420) can impact the area covered by the mounting sleeve 210 along the axial direction of the fluid inlet, thereby ensuring the adsorption effect of the magnet 220 on the magnetic impurities in the fluid. Further preferably, the projection of the mounting sleeve 210 on the longitudinal section 10 completely covers the projection of the fluid inlet (the outlet of the three-way valve core 420) on the longitudinal section 10 to maximize the ability of the magnet 220 to adsorb magnetic impurities, thereby improving the filtering performance of the magnetic filtering device.

[0063] Optionally, the three-way valve assembly 400 further includes a water inlet joint 430. The water inlet joint 430 is disposed in the three-way valve body 410 and is connected to the inlet of the three-way valve core 420. A first seal 440 is provided between the water inlet joint 430 and the three-way valve body 410 to prevent the fluid flowing into the liquid inlet 411 from flowing out through the gap between the water inlet joint 430 and the three-way valve body 410. In this embodiment, the first seal 440 is a rubber sealing ring, which has a good sealing effect and a low cost.

[0064] Figure 9 The structural schematic diagram of the base 120 provided in this embodiment is shown. Figure 10 The cross-sectional schematic diagram of the base 120 provided in this embodiment is shown. Figure 11 The cross-sectional schematic diagram of the magnetic filtering device provided in this embodiment from another perspective is shown. As Figure 9 - Figure 11 shown, the magnetic filtering device further includes a sewage discharge assembly 500. A sewage discharge channel 121 communicating with the accommodating cavity 1001 is provided at the bottom of the base 120. The sewage discharge assembly 500 is configured to selectively open the sewage discharge channel 121. When the magnetic adsorption assembly 200 is removed from the main body 110 and the sewage discharge channel 121 is opened, the fluid containing magnetic impurities in the accommodating cavity 1001 can be discharged through the sewage discharge channel 121 to prevent excessive magnetic impurities adsorbed on the inner wall of the accommodating cavity 1001 from affecting the filtering effect of the magnetic filtering device.

[0065] Further, the sewage discharge assembly 500 includes a regulating valve stem 510 and a regulating valve core 520. A sealing port 1002 is further provided between the accommodation cavity 1001 and the sewage discharge channel 121. The regulating valve core 520 is rotatably arranged in the sewage discharge channel 121. One end of the regulating valve stem 510 is connected to the regulating valve core 520, and the other end extends out of the base 120. Rotating the regulating valve stem 510 can drive the regulating valve core 520 to rotate synchronously, so that the regulating valve core 520 can be switched between an open position for opening the sealing port 1002 and a blocking position for blocking the sealing port 1002. Specifically, a through communication channel 521 is provided on the regulating valve core 520. When the regulating valve core 520 rotates to the open position, the communication channel 521 is aligned with the sealing port 1002. At this time, the fluid in the accommodation cavity 1001 can be discharged after passing through the sealing port 1002, the communication channel 521, and the sewage discharge channel 121. When the regulating valve core 520 rotates to the blocking position, the axial direction of the communication channel 521 on the regulating valve core 520 is perpendicular to the axial direction of the accommodation cavity 1001, thereby realizing the blocking of the sealing port 1002.

[0066] To prevent the fluid containing magnetic impurities from flowing out through the gap between the regulating valve stem 510 and the base 120, in this embodiment, at least one second seal 122 is provided between the regulating valve stem 510 and the base 120. Optionally, the second seal 122 is a rubber sealing ring, which has a good sealing effect and a low cost.

[0067] To facilitate the operator to turn, a handle 530 is further connected to the end of the regulating valve stem 510 extending out of the base 120. The operator only needs to turn the handle 530 to drive the regulating valve stem 510 to rotate, which is convenient to operate, time-saving and labor-saving.

[0068] Figure 12 shows Figure 11 a partial structural schematic diagram of. As Figure 12 shown, the sewage discharge assembly 500 further includes a mounting seat 540 and a sewage discharge interface 550. One end of the mounting seat 540 is hermetically connected to the bottom of the base 120, and the other end of the mounting seat 540 is hermetically connected to the top of the sewage discharge interface 550, and the sewage discharge channel 121, the mounting seat 540, and the sewage discharge interface 550 are communicated in sequence. In this embodiment, the mounting seat 540 is threadedly connected to the base 120, and the mounting seat 540 is threadedly connected to the sewage discharge interface 550, with firm connection and convenient disassembly and assembly.

[0069] Optionally, a third seal 123 is provided between the regulating valve core 520 and the base 120, and a fourth seal 124 is provided between the regulating valve core 520 and the mounting seat 540, so as to achieve the sealing between the regulating valve core 520, the base 120 and the mounting seat 540, and prevent the fluid in the accommodating cavity 1001 from flowing out through the gap between the regulating valve core 520 and the sewage discharge channel 121 during the fluid filtration operation. In this embodiment, both the third seal 123 and the fourth seal 124 are rubber sealing rings, which have good sealing effect and low cost.

[0070] The following will briefly describe the working principle of the magnetic filtration device in conjunction with Figure 1 - Figure 11 the following:

[0071] 1) When it is necessary to filter the fluid, the operator rotates the handle 530 to drive the regulating valve rod 510 to rotate, and then drives the regulating valve core 520 to rotate to the blocking position. At this time, the fluid in the pipeline can enter the accommodating cavity 1001 from the fluid inlet channel, be filtered by the magnet 220 and the mesh filter element 300, and then flow out from the fluid storage channel;

[0072] 2) After the filtration operation is completed, the operator rotates the handle 530 to drive the regulating valve rod 510 to rotate, and then drives the regulating valve core 520 to rotate to the open position. At this time, the fluid containing magnetic impurities in the accommodating cavity 1001 can sequentially pass through the sealing port 1002, the communication channel 521, the sewage discharge channel 121, the mounting seat 540 and the sewage discharge interface 550 and be discharged.

[0073] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, various changes and modifications can be made to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic filtering device, characterized in that: include: An outer shell (100) having a containing cavity (1001) therein, and a fluid inlet and outlet (111) communicating with the containing cavity (1001) is provided on the outer shell (100); The magnetic attraction component (200) comprises a mounting sleeve (210) and a magnet (220) arranged on the mounting sleeve (210), wherein the mounting sleeve (210) is detachably mounted on the outside of the outer shell (100), and a projection of the mounting sleeve (210) on a longitudinal section (10) passing through the central axis of the outer shell (100) and a projection of the fluid inlet and outlet (111) on the longitudinal section (10) overlap, wherein the longitudinal section (10) is perpendicular to the central axis of the fluid inlet and outlet (111).

2. The magnetic filtering device according to claim 1, characterized in that: The mounting sleeve (210) is a C-shaped ring, and the C-shaped ring is clamped on the outer wall of the outer shell (100).

3. The magnetic filtering device according to claim 2, characterized in that: One of the inner wall of the installation sleeve (210) and the outer wall of the outer shell (100) is provided with a card slot (112), and the other is provided with a card protrusion (211) that is card-engaged with the card slot (112).

4. The magnetic filtering device according to claim 3, characterized in that A take-in / take-out opening (1121) for taking in and putting in the installation sleeve (210) is provided on one side of the card slot (112).

5. The magnetic filtering device according to claim 3, characterized in that: A limiting step (113) is provided on the outer wall of the outer shell (100), and the limiting step (113) can abut against the installation sleeve (210).

6. The magnetic filtering device according to claim 1, characterized in that: The mounting sleeve (210) is provided with a mounting groove (212) for mounting the magnet (220).

7. The magnetic filtering device according to claim 6, characterized in that: A relief opening (2121) is provided on one side of the installation groove (212) facing the outer shell (100), so that a portion of the magnet (220) is exposed outside the installation groove (212).

8. The magnetic filtering device according to claim 1, characterized in that: The magnetic filtering device further comprises a three-way valve assembly (400), wherein the three-way valve assembly (400) comprises: A three-way valve body (410), wherein the three-way valve body (410) has a liquid inlet (411), a liquid outlet (412) and a connection interface (413), and the connection interface (413) is sealedly connected to the fluid inlet and outlet (111); The three-way valve core (420) is arranged in the three-way valve body (410), and partially passes through the connecting interface (413) and extends into the accommodating cavity (1001). The outlet of the three-way valve core (420) forms a fluid inlet, and the interval between the three-way valve core (420) and the fluid inlet and outlet (111) forms a fluid outlet.

9. The magnetic filtering device according to claim 8, characterized in that: The projection of the mounting sleeve (210) on the longitudinal section (10) completely covers the projection of the fluid inlet on the longitudinal section (10).

10. The magnetic filtering device according to any one of claims 1 to 9, characterized in that: The outer shell (100) comprises a base (120) and a main body (110) detachably arranged on the base (120), and the fluid inlet and outlet (111) and the magnetic attraction component (200) are both arranged on the main body (110).

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