Filter

Abstract

The utility model belongs to the technical field of valves, and discloses a filter. The filter comprises a valve body and a filter assembly, the valve body comprises a main pipe and a branch pipe which are communicated with each other, the filter assembly extends into the main pipe from the branch pipe, a space used for containing the filter assembly in the valve body forms a filter cavity, and the filter cavity divides the main pipe into a water inlet runner on one side and a water outlet runner on the other side. A water through groove is formed in the intersection of the filtering cavity and the water outlet flow channel. When liquid flows to the water outlet flow channel from the interior of the filtering assembly, the water through groove can increase the overflowing area of the intersection of the filtering cavity and the water outlet flow channel, reduce the flow resistance and increase the flow of water flow, meanwhile, the water through groove also increases the filtering area of the filtering assembly, and the filtering capacity is improved.

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 and a filter assembly. The valve body includes an inlet channel, an outlet channel, and a filter cavity that intersects and connects the inlet channel and the outlet channel. The filter assembly is arranged in the filter cavity. The liquid flows from the inlet channel into the filter assembly for filtration. The impurities after filtration remain inside the filter assembly. The filtered liquid flows from the filter assembly into the outlet channel. However, the existing filter has a small flow area and a large flow resistance at the intersection of the outlet channel and the filter cavity, which affects the water flow rate and the filtration area, thereby affecting the user's water use experience.

[0004] Therefore, there is an urgent need to provide a filter to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a filter which can increase the flow area at the intersection of the filter cavity and the water outlet flow channel, reduce the flow resistance, increase the water flow rate, and also increase the filtration area to improve the filtration effect.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The filter comprises a valve body and a filter assembly, wherein the valve body comprises a main pipe and a branch pipe which are interconnected, the filter assembly extends from the branch pipe into the main pipe, and an internal space inside the valve body for accommodating the filter assembly forms a filter chamber, the filter chamber divides the main pipe into a water inlet channel on one side and a water outlet channel on the other side, and a water groove is provided at the intersection of the filter chamber and the water outlet channel.

[0008] As an optional solution, at least two water passages are provided at the intersection of the filter cavity and the water outlet channel, and the water passages are arranged at intervals along the circumference of the intersection.

[0009] At least two water channels can further increase the flow area at the intersection of the filter chamber and the water outlet channel, reduce flow resistance, increase water flow, and further increase the filter area of ​​the filter component, improve filtering capacity, and enhance the user's water experience.

[0010] As an optional solution, the main pipe is a straight pipe.

[0011] As an optional solution, the branch pipe is arranged inclined relative to the main pipe.

[0012] As an optional solution, the filter further comprises a valve cover, and the valve cover is sealingly connected to an end of the branch pipe away from the main pipe.

[0013] As an optional solution, the filter assembly is fixedly connected to the valve cover.

[0014] By fixing the filter assembly to the valve cover, the valve cover and the filter assembly form an integrated structure. When the filter assembly needs to be disassembled and cleaned, the filter assembly can be removed together with the valve cover by simply removing the valve cover. The filter assembly is easy to clean and replace, which not only solves the problem that the filter assembly is difficult to remove, but also solves the problem that the filter assembly is easy to fall off during disassembly and assembly.

[0015] As an optional solution, the filter assembly includes a filter net, the filter net includes an inner net and an outer net, and the outer net is sleeved outside the inner net.

[0016] By setting the filter as a double-layer network, the structural strength of the filter is improved, the structure is more stable and not easy to deform, so that the filter can maintain a good filtering effect in a complex working environment.

[0017] As an optional solution, the filtering mesh number of the inner network is greater than the filtering mesh number of the outer network.

[0018] This arrangement allows the inner net to capture smaller particles and the outer net to intercept larger particles, thereby achieving a more refined filtering effect. Due to the efficient filtering performance of the double-layer filter, it can protect downstream equipment, extend the service life of the equipment, and reduce the maintenance and replacement costs of the equipment.

[0019] As an optional solution, the filter assembly also includes a crossbeam and a connecting piece, the crossbeam is arranged in one end of the filter screen close to the valve cover, and the crossbeam is arranged along the radial direction of the filter screen, one end of the connecting piece is fixedly connected to the crossbeam, and the other end is fixedly connected to the valve cover.

[0020] By fixing the crossbeam in the filter screen and connecting the connecting piece between the crossbeam and the valve cover, the filter assembly and the valve cover are stably connected together, so that the valve cover and the filter assembly form an integrated structure, and the filter assembly is easy to clean and replace.

[0021] As an optional solution, the connecting member is a bolt, a mounting hole is provided on the crossbeam, one end of the connecting member passes through the mounting hole and is fixedly connected to the crossbeam, a threaded hole is provided on one side of the valve cover close to the filter screen, and one end of the connecting member is threadedly connected to the threaded hole.

[0022] Through the above arrangement, the valve cover and the filter assembly can be fixed, the structure is simple, and the assembly is convenient, so that the filter assembly is easy to clean and replace.

[0023] Beneficial effects of the utility model:

[0024] In the filter provided by the utility model, liquid flows from the water inlet flow channel into the filter assembly for filtration, and the impurities after filtration remain inside the filter assembly to avoid pipeline blockage, and the filtered liquid then flows from the filter assembly into the water outlet flow channel. By providing a water channel at the intersection of the filter cavity and the water outlet flow channel, when the liquid flows from the inside of the filter assembly to the water outlet flow channel, the flow area at the intersection of the filter cavity and the water outlet flow channel can be increased, the flow resistance can be reduced, and the flow rate of the water flow can be increased. At the same time, the water channel also increases the filtration area of ​​the filter assembly, thereby improving the filtration capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional view of the filter provided by the utility model;

[0026] Figure 2 It is a cross-sectional view of the valve body and valve cover provided by the utility model;

[0027] Figure 3 It is a structural schematic diagram of the valve body provided by the utility model;

[0028] Figure 4 It is a structural schematic diagram of the filter assembly provided by the utility model.

[0029] In the figure:

[0030] 10. Valve body; 11. Water inlet channel; 12. Water outlet channel; 13. Filter chamber; 14. Main pipe; 15. Branch pipe; 16. Water channel;

[0031] 20. Filter assembly; 21. Filter screen; 211. Inner screen; 212. Outer screen; 22. Crossbeam; 23. Connector;

[0032] 30. Valve cover; 31. Threaded hole; 32. Sealing ring. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] like Figure 1 and Figure 2 As shown, this embodiment provides a filter, including a valve body 10 and a filter assembly 20, the valve body 10 includes a main pipe 14 and a branch pipe 15 that are interconnected, the filter assembly 20 extends from the branch pipe 15 into the main pipe 14, and the valve body 10 is used to accommodate the internal space of the filter assembly 20 to form a filter chamber 13, the filter chamber 13 divides the inside of the main pipe 14 into an inlet flow channel 11 on one side and an outlet flow channel 12 on the other side, the filter assembly 20 is arranged in the filter chamber 13 to filter particulate impurities in the liquid, and the opening at the bottom of the filter assembly 20 faces the inlet flow channel 11. When in use, the liquid flows from the inlet flow channel 11 into the filter assembly 20 for filtration, and the filtered impurities remain in the filter assembly 20 to avoid pipeline blockage, and the filtered liquid then flows from the inside of the filter assembly 20 into the outlet flow channel 12.

[0038] However, in the existing filter, the flow area at the intersection of the filter cavity 13 and the water outlet channel 12 is small and the flow resistance is large, which affects the water flow rate. At the same time, the blocking area of ​​the filter component 20 is large, which affects the filtration area and thus affects the user's water use experience.

[0039] In order to solve the above problems, Figure 2 and Figure 3 As shown, a water channel 16 is provided at the intersection of the filter chamber 13 and the water outlet channel 12, and the water channel 16 connects the filter chamber 13 and the water outlet channel 12. When liquid flows into the water outlet channel 12 from the inside of the filter assembly 20, the water channel 16 can increase the flow area at the intersection of the filter chamber 13 and the water outlet channel 12, reduce the flow resistance, and increase the flow rate of the water flow. At the same time, the water channel 16 also reduces the shielding area of ​​the filter assembly 20, increases the effective filtering area of ​​the filter assembly 20, and improves the filtering capacity.

[0040] In an optional embodiment, if Figure 3 As shown, two water-passing grooves 16 are provided at the intersection of the filter cavity 13 and the water outlet channel 12, and the two water-passing grooves 16 are symmetrically arranged. The two water-passing grooves 16 are easy to process, and can further increase the flow area at the intersection of the filter cavity 13 and the water outlet channel 12, reduce flow resistance, increase the flow rate of water flow, and further increase the filtration area of ​​the filter assembly 20, improve the filtration capacity, and improve the user's water experience. In other optional embodiments, under the premise that the wall thickness of the valve body 10 and the internal space allow, three, four or more water-passing grooves 16 can be provided, and multiple water-passing grooves 16 can be arranged at intervals along the circumference of the intersection.

[0041] In an optional embodiment, if Figure 3 As shown, the water channel 16 is an arc-shaped channel. On the basis of increasing the flow area at the intersection of the filter cavity 13 and the water outlet channel 12, the arc-shaped channel is easy to process and easy to form. In other optional embodiments, the water channel 16 can also be polygonal, special-shaped or other shapes, which can be flexibly set according to actual needs, and no specific limitation is made here.

[0042] In an optional embodiment, if Figure 1 As shown in FIG. 1 , the filter is a Y-shaped filter. In other words, Figure 2 As shown, the main pipe 14 is a straight pipe, that is, the water inlet channel 11 and the water outlet channel 12 are located on the same straight line, which is convenient for processing. On this basis, the branch pipe 15 is arranged obliquely relative to the main pipe 14, that is, the filter chamber 13 is arranged obliquely relative to the water inlet channel 11 and the water outlet channel 12, and the filter chamber 13 is inclined toward one side of the water outlet channel 12.

[0043] like Figure 1 and Figure 2As shown, the filter further includes a valve cover 30, which is sealed to one end of the branch pipe 15 away from the main pipe 14. The valve cover 30 blocks the filter assembly 20 in the filter cavity 13, and the valve cover 30 is fixed to one end of the branch pipe 15 by a threaded connection, thereby ensuring the installation firmness of the filter assembly 20.

[0044] In the existing filters, the filter assembly 20 is embedded in the filter cavity 13, or is directly movably mounted between the valve body 10 and the valve cover 30. The former filter assembly 20 is inconvenient to disassemble, clean and replace, and is prone to dirt accumulation after long-term use; the latter filter assembly 20, valve cover 30 and valve body 10 are all split structures. During disassembly and maintenance, the filter assembly 20 is easy to fall off, and the disassembly, cleaning and replacement of the filter assembly 20 is cumbersome.

[0045] In order to solve the above problems, the filter assembly 20 is fixedly connected to the valve cover 30. By fixing the filter assembly 20 to the inner side of the valve cover 30, the valve cover 30 and the filter assembly 20 form an integrated structure. When the filter assembly 20 needs to be disassembled and cleaned, 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, solving the problem that the filter assembly 20 is difficult to remove and the problem that the filter assembly 20 is easy to fall off during disassembly and assembly.

[0046] like Figure 1 and Figure 2 As shown, a sealing ring 32 is provided between the valve cover 30 and the inner wall of the branch pipe 15. The sealing ring 32 can ensure the sealing between the valve cover 30 and the branch pipe 15 to prevent leakage.

[0047] In order to fix the filter assembly 20 to the inner side of the valve cover 30, in an optional embodiment, as Figure 1 and Figure 4 As shown, the filter assembly 20 includes a filter screen 21, a crossbeam 22 and a connecting piece 23. The filter screen 21 is enclosed in a cylindrical shape with two ends open, and the filter screen 21 is accommodated in the filter cavity 13 to filter impurities. The crossbeam 22 is fixedly arranged in one end of the filter screen 21 close to the valve cover 30, and the crossbeam 22 is arranged along the radial direction of the filter screen 21. One end of the connecting piece 23 is fixedly connected to the crossbeam 22, and the other end is fixedly connected to the valve cover 30. By fixing the crossbeam 22 in the filter screen 21 and fixing the connecting piece 23 between the crossbeam 22 and the valve cover 30, the filter assembly 20 and the valve cover 30 are stably fixed together, so that the valve cover 30 and the filter assembly 20 form an integrated structure, and the filter assembly 20 is easy to clean and replace, which not only solves the problem that the filter assembly 20 is difficult to remove, but also solves the problem that the filter assembly 20 is easy to fall off during disassembly.

[0048] In an optional embodiment, if Figure 1 , Figure 2 and Figure 4As shown, the connector 23 is a bolt, and a mounting hole is provided on the cross beam 22. One end of the connector 23 is provided with the mounting hole and fixedly connected to the cross beam 22. A threaded hole 31 is provided on the side of the valve cover 30 close to the filter screen 21, and the connector 23 is threadedly connected in the threaded hole 31. Specifically, the threaded section of the connector 23 is threadedly connected to the threaded hole 31 after being provided with the mounting hole, and the head of the connector 23 abuts against the side of the cross beam 22 away from the valve cover 30. The connector 23 can be fixedly connected to the cross beam 22 by welding, threaded connection, glue bonding, etc. Through the above arrangement, the valve cover 30 and the filter assembly 20 can be fixedly connected, the structure is simple, and the assembly is convenient, so that the filter assembly 20 is easy to clean and replace.

[0049] 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.

[0050] In order to solve the above problem, in an optional embodiment, as Figure 4 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 fitted outside 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.

[0051] 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.

[0052] 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) and a filter assembly (20), wherein the valve body (10) comprises a main pipe (14) and a branch pipe (15) which are interconnected, wherein the filter assembly (20) extends from the branch pipe (15) into the main pipe (14), and a space inside the valve body (10) for accommodating the filter assembly (20) forms a filter chamber (13), wherein the filter chamber (13) divides the main pipe (14) into a water inlet channel (11) on one side and a water outlet channel (12) on the other side, wherein: A water channel (16) is provided at the intersection of the filter cavity (13) and the water outlet channel (12).

2. The filter according to claim 1, characterized in that At least two water passages (16) are provided at the intersection of the filter cavity (13) and the water outlet channel (12), and the water passages (16) are arranged at intervals along the circumference of the intersection.

3. The filter according to claim 1, characterized in that The main pipe (14) is a straight pipe.

4. The filter according to claim 3, characterized in that The branch pipe (15) is arranged obliquely relative to the main pipe (14).

5. The filter according to claim 1, characterized in that The filter further comprises a valve cover (30), wherein the valve cover (30) is sealingly connected to an end of the branch pipe (15) away from the main pipe (14).

6. The filter according to claim 5, characterized in that The filter assembly (20) is fixedly connected to the valve cover (30).

7. The filter according to claim 5, characterized in that The filter assembly (20) comprises a filter net (21), wherein the filter net (21) comprises an inner net (211) and an outer net (212), wherein the outer net (212) is sleeved outside the inner net (211).

8. The filter according to claim 7, characterized in that The filtering mesh number of the inner network (211) is greater than the filtering mesh number of the outer network (212).

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

10. The filter according to claim 9, characterized in that The connecting member (23) is a bolt, the cross beam (22) is provided with a mounting hole, one end of the connecting member (23) passes through the mounting hole and is fixedly connected to the cross beam (22), a threaded hole (31) is provided on one side of the valve cover (30) close to the filter screen (21), and one end of the connecting member (23) is threadedly connected to the threaded hole (31).

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