Magnetic filtering device and water inlet valve

Abstract

The utility model relates to the technical field of valves, and discloses a magnetic filtering device and a water inlet valve. The magnetic filtering device comprises a base, a filtering piece and a magnetic piece. The base is configured to be connected with the water inlet valve body. The filtering piece is mounted on the base and can filter impurities in fluid passing through the filtering piece; the magnetic piece is embedded in the base. The magnetic filtering device can filter water flowing into the water inlet channel of the water inlet valve and can adsorb impurities containing iron, nickel and the like in the water, the phenomenon that due to the impurities containing the iron, the nickel and the like, a zinc material with the high potential in brass on the downstream portion of the water inlet channel is replaced and oxidized, and the phenomena of crystallization and scaling are caused are avoided, and the service life of the water inlet valve is prolonged. A waterway is prevented from being blocked, and stable operation of a waterway system of the whole wall-hanging stove is guaranteed; and the magnetic piece is embedded in the base, so that the mounting efficiency of the magnetic filtering device and the water inlet valve body can be improved, and the size and the occupied space of the magnetic filtering device can be reduced to a certain extent.

Description

Technical Field

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

[0002] A gas wall-mounted heating boiler, also known as a wall-mounted boiler, is a water heater that uses natural gas as energy. The water inlet valve is one of the key components of a wall-mounted boiler, which is used to control the opening and closing of the water circuit of the wall-mounted boiler. The water inlet valve of a wall-mounted boiler usually includes a valve body, a bathroom water circuit arranged in the valve body, a water supply valve installed on the valve body, and a flow sensor. The flow sensor cooperates with the bathroom water circuit to control the operation of the wall-mounted boiler, and the water supply valve is used to supply water to the wall-mounted boiler. In actual use, since the system water pipes are mostly made of iron materials and lack cleaning and maintenance, it is easy to cause impurities such as iron and nickel in the water. If it is not handled in time, it is easy to cause the high-potential zinc material in the brass to be replaced and oxidized, and cause crystallization and scaling. It can also cause water circuit blockage and sensor jamming.

[0003] Therefore, there is an urgent need to provide a magnetic filtering device to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a magnetic filtering device and a water inlet valve, which can effectively remove impurities containing elements such as iron and nickel in the water channel of a wall-mounted boiler, and avoid the blockage of the water channel and the jamming of the sensor.

[0005] As conceived above, the technical solution adopted by the utility model is:

[0006] A magnetic filtering device is used for a water inlet valve, the water inlet valve comprises a water inlet valve body, and the magnetic filtering device comprises:

[0007] A base, the base being configured to be connected to the water inlet valve body;

[0008] A filter element, which is mounted on the base and can filter impurities in the fluid passing through the filter element;

[0009] The magnetic part is embedded in the base.

[0010] As a preferred solution of the magnetic filtering device provided by the utility model, the magnetic member is a ring-shaped structure.

[0011] As a preferred solution of the magnetic filtering device provided by the utility model, the cross-sectional shape of the magnetic element is circular, arc-shaped or polygonal.

[0012] As a preferred solution of the magnetic filtering device provided by the utility model, there are multiple magnetic components, and the multiple magnetic components are arranged at intervals along the circumference of the base.

[0013] As a preferred solution of the magnetic filtering device provided by the utility model, the filter element is a metal filter screen, and the metal filter screen is integrally injection-molded on the base; or

[0014] The filter element is a plastic filter net, and the filter element and the base are integrally formed.

[0015] As a preferred solution of the magnetic filtering device provided by the utility model, the magnetic component is integrally injection-molded in the base.

[0016] As a preferred solution of the magnetic filtering device provided by the utility model, a plug-in slot is provided on a side of the base away from the filtering element, and the magnetic element is plugged into the plug-in slot.

[0017] As a preferred solution of the magnetic filtering device provided by the utility model, the opening of the plug-in slot away from the filter element is in a flared shape.

[0018] The utility model also provides a water inlet valve, comprising:

[0019] A water inlet valve body, wherein the water inlet valve body is provided with a water inlet channel;

[0020] The magnetic filter device as described above is installed in the water inlet channel.

[0021] As a preferred solution of the water inlet valve provided by the utility model, the base of the magnetic filter device is interference-fitted in the water inlet channel; or

[0022] The base of the magnetic filter device is screwed into the water inlet channel; or

[0023] A limiting member for limiting the base of the magnetic filtering device is arranged at the inlet of the water inlet channel.

[0024] The beneficial effects of the utility model are:

[0025] The utility model provides a magnetic filter device and a water inlet valve, which can filter water flowing into a water inlet channel of the water inlet valve, and can absorb impurities containing elements such as iron and nickel in the water, so as to prevent the impurities containing elements such as iron and nickel from causing the zinc material with a higher potential in the brass downstream of the water inlet channel to be replaced and oxidized, and cause the formation of crystals and scaling, thereby preventing the water channel from being blocked and ensuring the stable operation of the water channel system of the entire wall-mounted boiler. In addition, compared with the solution in the prior art of directly installing the separate magnetic ring and the filter net in the water inlet valve body in turn, by embedding the magnetic part in the base, on the one hand, the installation efficiency of the magnetic filter device and the water inlet valve body can be improved, and only one installation is required to complete the installation, thereby reducing the workload of the operator, and on the other hand, the volume and occupied space of the magnetic filter device can be reduced to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the water inlet valve provided by the utility model;

[0027] Figure 2 It is a cross-sectional schematic diagram of the water inlet valve provided by the utility model;

[0028] Figure 3 It is a structural schematic diagram of a magnetic filtering device provided in Embodiment 1 of the present utility model;

[0029] Figure 4 It is a structural schematic diagram of a magnetic filtering device provided in Embodiment 1 of the present utility model;

[0030] Figure 5 This is a cross-sectional view of the base and magnetic member provided in the first embodiment of the present invention. Figure 1 ;

[0031] Figure 6 This is a cross-sectional view of the base and magnetic member provided in the first embodiment of the present invention. Figure 2 ;

[0032] Figure 7 This is a cross-sectional view of the base and magnetic member provided in the first embodiment of the present invention. Figure 3 ;

[0033] Figure 8 This is a cross-sectional view of the base and magnetic member provided in the first embodiment of the present invention. Figure 4 ;

[0034] Fig. 9 It is a structural schematic diagram of a magnetic filtering device provided in Embodiment 2 of the present utility model;

[0035] Fig.10 It is a structural schematic diagram of a magnetic filtering device provided in Embodiment 2 of the present utility model;

[0036] Fig.11 It is a structural schematic diagram of a magnetic filtering device provided in Embodiment 3 of the present utility model;

[0037] Fig.12 It is a structural schematic diagram of a magnetic filtering device provided in Embodiment 3 of the present utility model;

[0038] Fig.13 This is a cross-sectional view of the base provided in the third embodiment of the present utility model. Figure 1 ;

[0039] Fig.14 This is a cross-sectional view of the base provided in the third embodiment of the present utility model. Figure 2 .

[0040] In the figure:

[0041] 100, magnetic filter device; 110, base; 111, plug-in slot; 120, filter element; 130, magnetic element;

[0042] 200. Water inlet valve body; 201. Water inlet channel. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0044] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0046] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0047] Figure 1 The schematic diagram of the structure of the water inlet valve provided by the utility model is shown. Figure 1 As shown, the utility model provides a water inlet valve, which is used in a wall-mounted boiler to adjust the flow of water entering the wall-mounted boiler, ensuring that the wall-mounted boiler can obtain a stable and appropriate amount of water source during operation, thereby maintaining its normal working state.

[0048] Figure 2 FIG. 2 shows a cross-sectional schematic diagram of the water inlet valve provided by the utility model. Figure 2 Combined with Figure 1 As shown, the water inlet valve includes a water inlet valve body 200 and a magnetic filter device 100. The water inlet valve body 200 has a water inlet channel 201. The magnetic filter device 100 is installed in the water inlet channel 201 to filter the water flowing into the water inlet channel 201 and absorb impurities with elements such as iron and nickel in the water to prevent the impurities with elements such as iron and nickel from causing the zinc material with a higher potential in the brass downstream of the water inlet channel 201 to be replaced and oxidized, and to cause crystallization and scaling, thereby preventing the waterway from being blocked and ensuring the stable operation of the waterway system of the entire wall-mounted boiler. In this embodiment, the magnetic filter device 100 is located upstream of the water flow sensor of the water inlet valve to prevent impurities with elements such as iron and nickel from entering the water flow sensor and causing the functional parts therein to become stuck and fail.

[0049] It should be noted that the water inlet valve body 200 and the water flow sensor are both relatively mature technologies in the prior art, and the specific structure and working principle of the water inlet valve body 200 and the water flow sensor are not described in detail in the present invention. The specific structure of the magnetic filter device 100 provided by the present invention is introduced through multiple embodiments.

[0050] Embodiment 1

[0051] Figure 3 FIG. 1 is a schematic structural diagram of a magnetic filtering device 100 provided in this embodiment. Figure 4 FIG. 1 shows a schematic structural diagram of the magnetic filtering device 100 provided in this embodiment. Figure 3-Figure 4 Combined with Figure 2As shown, the magnetic filter device 100 provided in this embodiment includes a base 110, a filter element 120 and a magnetic element 130, wherein the base 110 is configured to be connected to the water inlet valve body 200; the filter element 120 is installed on the base 110 and can filter impurities in the fluid passing therethrough; and the magnetic element 130 is embedded in the base 110. Compared with the solution in the prior art in which the separate magnetic ring and the filter net are directly installed in the water inlet valve body 200 in sequence, by embedding the magnetic element 130 in the base 110, on the one hand, the installation efficiency of the magnetic filter device 100 and the water inlet valve body 200 can be improved, and the installation can be completed only once, thereby reducing the workload of the operator; on the other hand, the volume and occupied space of the magnetic filter device 100 can be reduced to a certain extent.

[0052] In order to achieve stable assembly between the base 110 and the water inlet valve body 200, in some embodiments, the base 110 is interference-fitted in the water inlet channel 201 of the water inlet valve body 200, and the assembly process is simple and the connection is stable. In other embodiments, the base 110 is screwed into the water inlet channel 201, and the threaded connection has the advantages of simple structure and convenient disassembly and assembly. In some other embodiments, the magnetic filter device 100 can also be inserted into the water inlet channel 201 of the water inlet valve body 200 first, and then a limiter (not shown in the figure) is installed at the inlet of the water inlet channel 201 to limit the installation position of the magnetic filter device 100 to prevent it from falling off from the inlet of the water inlet channel 201. In this example, the limiter can be a fixed gasket, a limiter snap ring, etc. that is interference-fitted in the water inlet channel 201, and this example is not limited to this.

[0053] It should be noted that when the magnetic filter device 100 is installed in the water inlet channel 201, the installation direction of the magnetic filter device 100 is not limited, that is, the filter element 120 can be located upstream or downstream of the base 110 along the water inlet direction of the water inlet channel 201. The above two installation methods can both achieve better filtering and magnetic adsorption effects.

[0054] In this embodiment, the base 110 is made of plastic. When processing the magnetic filter device 100, the magnetic member 130 can be used as an insert and integrally injection molded with the base 110. After molding, the magnetic member 130 is magnetized by magnetizing technology to give it a strong magnetic adsorption effect. This processing method is convenient and efficient, and can ensure the stability of the assembly between the magnetic member 130 and the base 110, thereby improving the service life of the magnetic filter device 100.

[0055] Figure 5 The cross-sectional view of the base 110 and the magnetic member 130 provided in this embodiment is shown. Figure 1 .like Figure 5As shown, in some embodiments, the magnetic member 130 is a ring structure. That is, the magnetic member 130 is a magnetic ring, and the magnetic ring is integrally embedded in the base 110, which has a simple structure, is easy to assemble, and has a large magnetic attraction.

[0056] Figure 6 The cross-sectional view of the base 110 and the magnetic member 130 provided in this embodiment is shown. Figure 2 .like Figure 6 As shown, in some embodiments, the cross-sectional shape of the magnetic member 130 is an arc-shaped structure. In order to ensure that impurities containing elements such as iron and nickel can be effectively adsorbed at all positions of the base 110, in this example, there are multiple magnetic members 130, and the multiple magnetic members 130 are arranged at intervals along the circumference of the base 110. Optionally, the angles between two adjacent magnetic members 130 are equal, further ensuring that the magnetic attraction at all positions of the base 110 is uniform. Compared to Figure 5 The structure of the magnetic member 130 in this shape can reduce the material used and reduce the material cost.

[0057] Figure 7 The cross-sectional view of the base 110 and the magnetic member 130 provided in this embodiment is shown. Figure 3 .like Figure 7 As shown, in some embodiments, the cross-sectional shape of the magnetic member 130 is circular. That is, the magnetic member 130 can be a spherical structure or a cylindrical structure. It can be understood that, in this example, the number of magnetic members 130 is multiple, and the multiple magnetic members 130 are arranged at intervals along the circumference of the base 110. Optionally, the angles between two adjacent magnetic members 130 are equal, further ensuring that the magnetic attraction at each position of the base 110 is uniform.

[0058] Figure 8 The cross-sectional view of the base 110 and the magnetic member 130 provided in this embodiment is shown. Figure 4 .like Figure 8 As shown, in some embodiments, the cross-sectional shape of the magnetic member 130 can also be a polygon. That is, the magnetic member 130 can be a polyhedral structure. It can be understood that in this example, the number of magnetic members 130 is multiple, and the multiple magnetic members 130 are arranged at intervals along the circumference of the base 110, which can also achieve the above effect.

[0059] It should be particularly noted that the present embodiment does not limit the specific shape of the magnetic component 130, which may be a regular or irregular polyhedron structure, a regular or irregular columnar structure, etc., and this embodiment will not give examples one by one; in addition, the present embodiment does not limit the number of magnetic components 130, and designers can adjust the number of magnetic components 130 according to actual needs while considering both the magnetic attraction force and the layout space.

[0060] Continue as Figure 3-Figure 4As shown, in this embodiment, the filter element 120 is a metal filter screen, which has the advantages of high filtering accuracy, corrosion resistance, high temperature resistance, long service life and low cost. When processing the magnetic filtering device 100, the metal filter screen and the magnetic element 130 can be formed as an insert with the base 110 at the same time, which has a simple structure and is easy to process. It can save the steps of assembling multiple parts, improve processing efficiency, and can omit the use of connectors to reduce processing costs.

[0061] Embodiment 2

[0062] This embodiment provides a magnetic filtering device 100 , and the specific structure of the magnetic filtering device 100 is substantially the same as the specific structure of the magnetic filtering device 100 in the first embodiment, except that the material of the filter element 120 is different.

[0063] Fig. 9 FIG. 1 is a schematic structural diagram of a magnetic filtering device 100 provided in this embodiment. Fig.10 FIG. 1 shows a schematic structural diagram of the magnetic filtering device 100 provided in this embodiment. Figure 9-10 As shown, in this embodiment, the filter element 120 is a plastic filter screen, which has high corrosion resistance and wear resistance, and is flexible to process, and can be used in scenarios with different filtering requirements. When processing the magnetic filtering device 100, the base 110 and the filter element 120 can be integrally injection molded, and the magnetic element 130 can be integrally molded as an insert in the base 110, which is convenient to process and can further improve assembly efficiency.

[0064] It should be noted that in the first embodiment, since the filter element 120 is a metal filter mesh, its corners cannot be transitioned in a right angle shape to avoid breakage at the corners, thereby increasing its service life. Therefore, the corners of the filter element 120 in the first embodiment are transitioned in a rounded shape (such as Figure 3 and Figure 4 In this embodiment, as shown Fig. 9 and Fig.10 As shown, since the filter element 120 is made of a plastic filter mesh, its shape at the corner is not limited, and designers can adjust its shape according to actual needs to facilitate its processing.

[0065] Embodiment 3

[0066] This embodiment provides a magnetic filtering device 100 , the specific structure of which is substantially the same as the specific structure of the magnetic filtering device 100 in the first or second embodiment, except that the assembly method of the magnetic member 130 and the base 110 is different.

[0067] Fig.11FIG. 1 is a schematic structural diagram of a magnetic filtering device 100 provided in this embodiment. Fig.12 FIG. 1 shows a schematic structural diagram of the magnetic filtering device 100 provided in this embodiment. Figure 11-Figure 12 As shown, in this embodiment, a plug-in slot 111 is provided on one side of the base 110 away from the filter element 120, and the magnetic element 130 is plugged into the plug-in slot 111. With this arrangement, when the magnetic element 130 fails after long-term use, the operator can remove the magnetic element 130 from the base 110 and replace it with a new magnetic element 130, without having to replace the entire magnetic filtering device 100, thereby reducing the maintenance and replacement costs.

[0068] To facilitate assembly between the magnetic member 130 and the base 110, in this embodiment, the opening of the plug slot 111 away from the filter element 120 is flared, which can facilitate the magnetic member 130 to quickly align with the plug slot 111 and be accurately inserted, thereby improving assembly efficiency.

[0069] Optionally, in this embodiment, the magnetic member 130 can be bonded in the plug slot 111 to improve the stability of the connection between the two. Of course, in other embodiments, the magnetic member 130 can also be interference fit with the plug slot 111, which can also achieve a stable connection between the two.

[0070] Fig.13 The cross-sectional view of the base 110 provided in this embodiment is shown. Figure 1 .like Fig.13 Combined with Fig.12 As shown, in some embodiments, the magnetic member 130 may be an annular structure, and correspondingly, the plug-in slot 111 is an annular slot.

[0071] Fig.14 The cross-sectional view of the base 110 provided in this embodiment is shown. Figure 2 .like Fig.14 Combined with Fig.12 As shown, in some embodiments, the cross-sectional shape of the magnetic member 130 may be circular, arc-shaped or polygonal (i.e., the magnetic member 130 may be a spherical structure, a cylindrical structure or other regular or irregular polyhedral structures), and accordingly, the shape of the plug-in slot 111 is adapted to the shape of the magnetic member 130, thereby achieving stable assembly between the magnetic member 130 and the base 110. In order to ensure that each position of the base 110 can effectively adsorb impurities with elements such as iron and nickel, in this example, the number of magnetic members 130 is multiple, and the multiple magnetic members 130 are arranged at intervals along the circumference of the base 110. Optionally, the angles between two adjacent magnetic members 130 are equal, further ensuring that the magnetic attraction at each position of the base 110 is uniform.

[0072] It should be explained that the present embodiment does not limit the shape of the magnetic member 130 , and it is only necessary to ensure that the shape of the plug-in slot 111 provided on the base 110 matches the shape of the corresponding magnetic member 130 .

[0073] The above embodiments are only to 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, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A magnetic filtering device, used for a water inlet valve, the water inlet valve comprising a water inlet valve body (200), characterized in that: The magnetic filtering device comprises: A base (110), the base (110) being configured to be connected to the water inlet valve body (200); A filter element (120), the filter element (120) being mounted on the base (110) and capable of filtering impurities in a fluid passing through the filter element; The magnetic component (130) is embedded in the base (110).

2. The magnetic filtering device according to claim 1, characterized in that: The magnetic member (130) is a ring-shaped structure.

3. The magnetic filtering device according to claim 1, characterized in that: The cross-sectional shape of the magnetic member (130) is circular, arc-shaped or polygonal.

4. The magnetic filtering device according to claim 3, characterized in that: There are a plurality of magnetic members (130), and the plurality of magnetic members (130) are arranged at intervals along the circumference of the base (110).

5. The magnetic filtering device according to claim 1, characterized in that The filter element (120) is a metal filter mesh, and the metal filter mesh is integrally injection-molded on the base (110); or The filter element (120) is a plastic filter mesh, and the filter element (120) and the base (110) are integrally formed.

6. The magnetic filtering device according to any one of claims 1 to 5, characterized in that: The magnetic component (130) is integrally injection-molded in the base (110).

7. The magnetic filtering device according to any one of claims 1 to 5, characterized in that: A plug-in slot (111) is provided on a side of the base (110) facing away from the filter element (120), and the magnetic element (130) is plugged into the plug-in slot (111).

8. The magnetic filtering device according to claim 7, characterized in that: The opening of the insertion groove (111) facing away from the filter element (120) is in a flared shape.

9. A water inlet valve, characterized in that: include: A water inlet valve body (200), wherein the water inlet valve body (200) is provided with a water inlet channel (201); The magnetic filtering device according to any one of claims 1 to 8, wherein the magnetic filtering device is installed in the water inlet channel (201).

10. The water inlet valve according to claim 9, characterized in that: The base (110) of the magnetic filtering device is interference-fitted in the water inlet channel (201); or The base (110) of the magnetic filtering device is screwed into the water inlet channel (201); or A limiting member for limiting the position of the base (110) of the magnetic filtering device is provided at the inlet of the water inlet channel (201).

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