Filters

Abstract

The utility model belongs to the field of valve technology, and discloses a filter. The filter includes a valve body, a filter assembly and a valve cover, the filter assembly is accommodated in the valve body, the valve cover is connected to the valve body and seals the filter assembly in the valve body, a first magnetic component is provided on the valve cover, a second magnetic component is provided on the filter assembly, and the first magnetic component is magnetically connected to the second magnetic component. The filter assembly and the valve cover are movably connected through the magnetic connection between the first magnetic component and the second magnetic component, so that the filter assembly can be rotated to avoid the inlet position of the water outlet flow channel, so as to reduce the flow resistance, increase the flow area, and increase the flow rate of the water flow, while also increasing the filtration area of ​​the filter assembly and improving the filtration effect.

Description

Technical Field

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

[0002] The filter is an indispensable device in the fluid medium conveying pipeline. It is usually installed at the inlet end of the pressure reducing valve, pressure relief valve, water level valve or other equipment to filter impurities in the water in the pipeline to prevent impurities from clogging the pipeline or scaling in the pipeline, so as to protect the normal use of the valve equipment.

[0003] The existing filter mainly includes a valve body, a filter assembly and a valve cover. The filter assembly is arranged in the valve body, and the valve cover is used to seal the filter assembly in the valve body. The filter assembly is usually a cylindrical structure, which is formed by bending the mesh plate and overlapping and welding the ends thereof. The welding position is the weld. Since the weld is formed by overlapping and welding the ends of the mesh plate, there is no mesh at the weld. After the filter assembly is assembled into the filter, if the weld faces the water outlet channel, it will affect the flow area and the filtering effect.

[0004] In the existing filters, in order to facilitate the disassembly and cleaning of the filter assembly, the filter assembly and the valve cover are usually fixedly connected by screws or other means. During installation, the filter assembly and the valve cover are first fixedly connected as one body, and then the filter assembly is inserted into the valve body, and the valve cover is threadedly connected to one end of the valve body. Since the filter assembly is fixedly connected to the valve cover, after the filter is assembled, if the weld on the filter assembly faces the water outlet flow channel, the filter assembly cannot be rotated to adjust the direction of its weld, which will affect the flow area and filtering effect of the filter.

[0005] Therefore, there is an urgent need to provide a filter to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a filter, the direction of the weld of which can be adjusted by rotating the filter assembly, thereby increasing the flow area and the filtering effect.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] The filter comprises a valve body, a filter assembly and a valve cover, wherein the filter assembly is accommodated in the valve body, the valve cover is connected to the valve body and seals the filter assembly in the valve body, a first magnetic component is arranged on the valve cover, a second magnetic component is arranged on the filter assembly, and the first magnetic component is magnetically connected to the second magnetic component.

[0009] As an optional solution, the first magnetic component is disposed at one end of the valve cover close to the filter assembly, and the second magnetic component is disposed at one end of the filter assembly close to the valve cover.

[0010] As an optional solution, the first magnetic component is arranged at the center of the valve cover, and the second magnetic component is arranged at the center of the filter assembly.

[0011] As an optional solution, a mounting groove is formed at the center of one end of the valve cover close to the filter assembly, and the first magnetic member is embedded in the mounting groove.

[0012] As an optional solution, the first magnetic member and the second magnetic member are both magnetic steel; or

[0013] One of the first magnetic member and the second magnetic member is magnetic steel, and the other of the first magnetic member and the second magnetic member is ferromagnetic metal.

[0014] As an optional solution, the filter assembly includes a cylindrical filter screen having a weld seam.

[0015] As an optional solution, the filter assembly also includes a crossbeam and a connecting piece, the crossbeam is fixedly connected to the interior of the filter screen and is arranged along the radial direction of the filter screen, and the crossbeam is located at one end of the filter screen close to the valve cover, the connecting piece is fixedly connected to the crossbeam, and the second magnetic piece is fixedly connected to the connecting piece.

[0016] As an optional solution, the connecting member is a bolt, the crossbeam is provided with a mounting hole, one end of the connecting member passes through the mounting hole and is fixedly connected to the crossbeam, and the second magnetic member is provided with a threaded hole on one side close to the connecting member, and the connecting member is threadedly connected to the threaded hole.

[0017] As an optional solution, the filter net includes an inner net and an outer net, the outer net is arranged outside the inner net, and the filter mesh number of the inner net is greater than the filter mesh number of the outer net.

[0018] As an optional solution, the valve body includes a main pipe and a branch pipe that are interconnected, the filter assembly extends from the branch pipe into the main pipe, the valve cover is connected to one end of the branch pipe away from the main pipe, the main pipe is a straight pipe, and the branch pipe is inclined relative to the main pipe.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides a filter, wherein the filter assembly and the valve cover are connected together by magnetic attraction of a first magnetic part and a second magnetic part, so that the filter assembly and the valve cover can be movably connected. Therefore, after the filter is assembled, the operator can extend his hand from the open end of the valve body and rotate the filter assembly so that the weld of the filter assembly avoids the inlet position of the water outlet flow channel of the valve body to reduce the flow resistance, increase the flow area, and increase the flow rate of the water flow. At the same time, the filter area of ​​the filter assembly is increased to improve the filtering effect. In addition, after the filter is assembled, the first magnetic part and the second magnetic part are adsorbed together. When the filter assembly needs to be disassembled and cleaned, the filter assembly can be disassembled together with the valve cover by simply removing the valve cover. The filter assembly is easy to clean and replace, and the problem of inconvenient removal of the filter assembly after scaling can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional view of the filter provided by the utility model;

[0022] Figure 2 This is a cross-sectional view of the filter provided by the utility model with the valve body hidden;

[0023] Figure 3 It is a structural schematic diagram of the filter assembly provided by the utility model.

[0024] In the figure:

[0025] 10. Valve body; 11. Main pipe; 111. Water inlet channel; 112. Water outlet channel; 12. Branch pipe; 13. Filter chamber; 14. Water inlet; 15. Water outlet;

[0026] 20. Filter assembly; 21. Filter screen; 211. Inner screen; 212. Outer screen; 22. Crossbeam; 23. Connector;

[0027] 30. Valve cover; 31. Mounting groove; 32. Sealing ring;

[0028] 40. First magnetic component; 50. Second magnetic component; 51. Threaded hole. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions 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.

[0033] This embodiment provides a filter such as Figure 1 and Figure 2As shown, the filter comprises a valve body 10, a filter assembly 20 and a valve cover 30. The filter assembly 20 is accommodated in the valve body 10. The valve cover 30 is connected to the valve body 10 and blocks the filter assembly 20 in the valve body 10. Specifically, the valve body 10 comprises a main pipe 11 and a branch pipe 12 which are interconnected. The filter assembly 20 extends from the branch pipe 12 into the main pipe 11. A filter chamber 13 for accommodating the filter assembly 20 is formed in the valve body 10. The filter chamber 13 divides the main pipe 11 into an inlet channel 111 on one side and an outlet channel 112 on the other side. The intersection of the inlet channel 111 and the filter chamber 13 forms a water inlet 14, and the intersection of the outlet channel 112 and the filter chamber 13 forms a water outlet 15. The filter assembly 20 is arranged in the filter chamber 13 for filtering particulate impurities in the liquid, and the opening at the bottom of the filter assembly 20 faces the water inlet 14. The valve cover 30 is sealed and connected to one end of the branch pipe 12 away from the main pipe 11. When in use, liquid flows into the water inlet channel 111 and flows into the filter assembly 20 through the water inlet 14 for filtration. The filtered impurities remain inside the filter assembly 20 to avoid pipeline blockage. The filtered liquid then flows into the water outlet channel 112 from the water outlet 15.

[0034] Specifically, the valve cover 30 can be fixed on the branch pipe 12 by threaded connection to seal the filter assembly 20 in the filter cavity 13, the bottom end of the filter assembly 20 abuts against the bottom of the filter cavity 13, and the top end of the filter assembly 20 abuts against the valve cover 30, thereby ensuring the installation firmness of the filter assembly 20. Figure 1 As shown, a sealing ring 32 is provided between the valve cover 30 and the inner wall of the branch pipe 12 , and the sealing ring 32 can ensure the sealing between the valve cover 30 and the branch pipe 12 to prevent liquid leakage.

[0035] In an optional embodiment, if Figure 1 As shown, the filter is a Y-shaped filter. That is, the main pipe 11 is a straight pipe, which is convenient for processing. On this basis, the branch pipe 12 is inclined relative to the main pipe 11, that is, the filter chamber 13 is inclined relative to the water inlet channel 111 and the water outlet channel 112, and the filter chamber 13 is inclined toward one side of the water outlet channel 112.

[0036] like Figure 1 and Figure 2As shown, a first magnetic member 40 is provided on the valve cover 30, and a second magnetic member 50 is provided on the filter assembly 20, and the first magnetic member 40 is magnetically connected to the second magnetic member 50. The filter assembly 20 and the valve cover 30 are magnetically connected together through the first magnetic member 40 and the second magnetic member 50, so that the filter assembly 20 and the valve cover 30 are movably connected. Therefore, after the filter is assembled and the valve cover 30 is not completely tightened, the operator can observe the direction of the weld on the filter assembly 20 through the water inlet channel 111. If the weld on the filter assembly 20 faces the water outlet 15, the operator can extend his hand from the inlet of the water inlet channel 111 and rotate the filter assembly 20, so that the weld of the filter assembly 20 is turned to a position avoiding the water outlet 15, so as to reduce the flow resistance, increase the flow area, and increase the flow rate of the water flow. At the same time, it can also increase the filtration area of ​​the filter assembly 20 and improve the filtration effect. After the adjustment is completed, tighten the valve cover 30. In addition, after the filter is assembled, the first magnetic component 40 and the second magnetic component 50 are attracted to each other, so that the valve cover 30 and the filter assembly 20 form an integrated structure. When the filter assembly 20 needs to be disassembled and cleaned, under the action of magnetic attraction, only the valve cover 30 needs to be removed to drive the filter assembly 20 to be removed together. The filter assembly 20 is easy to clean and replace, and the problem of the filter assembly 20 being inconvenient to remove after scaling can be prevented.

[0037] like Figure 1 and Figure 2 As shown, the first magnetic member 40 is provided at one end of the valve cover 30 close to the filter assembly 20, and the second magnetic member 50 is provided at one end of the filter assembly 20 close to the valve cover 30. The first magnetic member 40 and the second magnetic member 50 are magnetically connected after contact, thereby ensuring the stability and firmness of the magnetic connection, and further ensuring that the filter assembly 20 can be removed together with the valve cover 30, which is convenient for cleaning and replacement of the filter assembly 20.

[0038] Among them, the first magnetic component 40 is arranged at the center of the valve cover 30, and the second magnetic component 50 is arranged at the center of the filter assembly 20. Specifically, the first magnetic component 40 and the second magnetic component 50 can be selected as regular cylindrical structures, preferably cylindrical structures. On this basis, the first magnetic component 40 is coaxially arranged with the valve cover 30, and the second magnetic component 50 is coaxially arranged with the filter assembly 20 and the first magnetic component 40 at the same time. In this way, the size of the first magnetic component 40 and the second magnetic component 50 does not need to be set larger, and when the filter assembly 20 is rotated around the axis of the filter assembly 20, it can ensure that the first magnetic component 40 and the second magnetic component 50 are always in contact and magnetically connected, thereby ensuring the stability of the connection between the two. In this way, when the filter assembly 20 is subsequently disassembled and cleaned, the valve cover 30 can drive the filter assembly 20 to be removed together, which is convenient for cleaning and replacement of the filter assembly 20.

[0039] In an optional embodiment, if Figure 2As shown, a mounting groove 31 is provided at the center of one end of the valve cover 30 close to the filter assembly 20, and a first magnetic member 40 is embedded in the mounting groove 31, and the first magnetic member 40 is flush with the notch of the mounting groove 31. By embedding the first magnetic member 40 in the mounting groove 31, installation space can be saved, the distance between the valve cover 30 and the filter assembly 20 can be shortened, thereby shortening the axial length of the valve cover 30 and saving processing costs. Among them, the first magnetic member 40 can be embedded in the mounting groove 31 by welding, threaded connection, glue bonding, etc., which is not specifically limited here.

[0040] In an optional embodiment, the first magnetic member 40 and the second magnetic member 50 may both be magnetic steel. In another optional embodiment, one of the first magnetic member 40 and the second magnetic member 50 may be magnetic steel, and the other of the two may be ferromagnetic metal. The above methods can ensure a stable magnetic attraction effect between the first magnetic member 40 and the second magnetic member 50. In addition, when the second magnetic member 50 is magnetic steel, it can also absorb rust in the water and play a role in cleaning the water.

[0041] In an optional embodiment, if Figures 1 to 3 As shown, the filter assembly 20 includes a filter screen 21, a crossbeam 22 and a connecting member 23. The filter screen 21 has a weld and is in a cylindrical shape with both ends open. The filter screen 21 is accommodated in the filter cavity 13. The crossbeam 22 is fixedly connected to the inside of the filter screen 21 and is arranged along the radial direction of the filter screen 21. The crossbeam 22 is located at one end of the filter screen 21 close to the valve cover 30. The connecting member 23 is fixedly connected to the crossbeam 22, and the second magnetic member 50 is fixedly connected to the connecting member 23. The above arrangement enables the second magnetic member 50 to be stably and reliably fixedly connected to the filter assembly 20 through the connecting member 23, so that the second magnetic member 50 and the filter assembly 20 form an integrated structure.

[0042] In an optional embodiment, if Figure 2 As shown, the connecting member 23 is a bolt, and a mounting hole is provided on the cross beam 22. One end of the connecting member 23 is provided with the mounting hole and fixedly connected to the cross beam 22. A threaded hole 51 is provided on the side of the second magnetic member 50 close to the connecting member 23, and the connecting member 23 is threadedly connected in the threaded hole 51. Specifically, the threaded section of the connecting member 23 is threadedly connected to the threaded hole 51 after passing through the mounting hole, and the head of the connecting member 23 abuts against the side of the cross beam 22 away from the valve cover 30. The connecting member 23 can be fixedly connected to the cross beam 22 by welding, threaded connection, glue bonding, etc. Through the above arrangement, the second magnetic member 50 is fixed to the connecting member 23 by threaded connection, with a simple structure and convenient and quick disassembly and assembly, thereby facilitating the maintenance and replacement of the second magnetic member 50.

[0043] In the existing filter, the filter screen 21 is usually a single layer, the structural strength of the single layer filter screen 21 is poor, and the filter screen 21 is easily deformed.

[0044] In order to solve the above problem, in an optional embodiment, as Figure 3 As shown, the filter screen 21 is configured as a double-layer screen. Specifically, the filter screen 21 includes an inner screen 211 and an outer screen 212 that are fixedly connected. The outer screen 212 is set and attached to the outside of the inner screen 211. A plurality of mesh holes are provided on the inner screen 211 and the outer screen 212. The outer screen 212 cooperates with the filter cavity 13 to mainly play a supporting role, and the inner screen 211 mainly plays a filtering role. By configuring the filter screen 21 as a double-layer screen, the structural strength of the filter screen 21 is improved, the structure is more stable, and it is not easy to deform, so that the filter screen 21 can maintain a good filtering effect in a complex working environment.

[0045] Furthermore, the number of meshes of the inner net 211 is greater than that of the outer net 212, that is, within a unit area, the number of meshes of the inner net 211 is greater than that of the outer net 212, and the larger the number of meshes, the smaller the aperture of the mesh, that is, the aperture of the mesh of the inner net 211 is smaller than that of the outer net 212. This arrangement makes the filtering effect of the inner net 211 better, the inner net 211 can capture smaller particles, and the outer net 212 can intercept larger particles, thereby achieving a more refined filtering effect. Due to the efficient filtering performance of the double-layer filter 21, downstream equipment can be protected, the service life of the equipment can be extended, and the maintenance and replacement costs of the equipment can be reduced.

[0046] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A filter, comprising a valve body (10), a filter assembly (20) and a valve cover (30), wherein the filter assembly (20) is accommodated in the valve body (10), and the valve cover (30) is connected to the valve body (10) and seals the filter assembly (20) in the valve body (10), characterized in that: The valve cover (30) is provided with a first magnetic component (40), the filter assembly (20) is provided with a second magnetic component (50), and the first magnetic component (40) and the second magnetic component (50) are magnetically connected.

2. The filter according to claim 1, characterized in that The first magnetic component (40) is disposed at one end of the valve cover (30) close to the filter assembly (20), and the second magnetic component (50) is disposed at one end of the filter assembly (20) close to the valve cover (30).

3. The filter according to claim 2, characterized in that The first magnetic component (40) is arranged at the center of the valve cover (30), and the second magnetic component (50) is arranged at the center of the filter assembly (20).

4. The filter according to claim 3, characterized in that The valve cover (30) is provided with a mounting groove (31) at the center of one end close to the filter assembly (20), and the first magnetic member (40) is embedded in the mounting groove (31).

5. The filter according to any one of claims 1 to 4, characterized in that: The first magnetic member (40) and the second magnetic member (50) are both made of magnetic steel; or One of the first magnetic component (40) and the second magnetic component (50) is magnetic steel, and the other is ferromagnetic metal.

6. The filter according to any one of claims 1 to 4, characterized in that: The filter assembly (20) comprises a cylindrical filter screen (21) having a weld seam.

7. The filter according to claim 6, characterized in that The filter assembly (20) further comprises a crossbeam (22) and a connecting member (23); the crossbeam (22) is fixedly connected to the interior of the filter screen (21) and is arranged along the radial direction of the filter screen (21); the crossbeam (22) is located at one end of the filter screen (21) close to the valve cover (30); the connecting member (23) is fixedly connected to the crossbeam (22); and the second magnetic member (50) is fixedly connected to the connecting member (23).

8. The filter according to claim 7, characterized in that The connecting member (23) is a bolt, and a mounting hole is provided on the cross beam (22). One end of the connecting member (23) passes through the mounting hole and is fixedly connected to the cross beam (22). A threaded hole (51) is provided on a side of the second magnetic member (50) close to the connecting member (23), and the connecting member (23) is threadedly connected in the threaded hole (51).

9. The filter according to claim 6, characterized in that The filter net (21) comprises an inner net (211) and an outer net (212); the outer net (212) is sleeved outside the inner net (211); and the filtering mesh number of the inner net (211) is greater than the filtering mesh number of the outer net (212).

10. The filter according to any one of claims 1 to 4, characterized in that: The valve body (10) comprises a main pipe (11) and a branch pipe (12) which are interconnected, the filter assembly (20) extends from the branch pipe (12) into the main pipe (11), the valve cover (30) is connected to one end of the branch pipe (12) away from the main pipe (11), the main pipe (11) is a straight pipe, and the branch pipe (12) is arranged obliquely relative to the main pipe (11).

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