Efficient sewage filter

Abstract

The utility model relates to the technical field of filters, in particular to an efficient sewage filter which comprises a body and a switching valve, the body comprises a liquid inlet chamber, a main filter chamber, an auxiliary filter chamber and a liquid outlet chamber, a main filter element is arranged in the main filter chamber, and an auxiliary filter element is arranged in the auxiliary filter chamber; the switching valve comprises a valve element, the valve element is arranged in the liquid inlet cavity, and a first through opening, a second through opening and a third through opening which communicate with one another are formed in the valve element. In an initial state, liquid passes through the main filter chamber of the first path and the slave filter chamber of the second path, and the main filter element and the slave filter element are simultaneously filtered, and at the moment, the filter efficiency of the filter is higher. When the main filter element is used for a period of time and needs to be replaced and cleaned, the valve element can be rotated, the valve element cuts off the connection between the liquid inlet channel and the main filter cavity, and the main filter element can be replaced. At the moment, the sewage can be normally filtered from the filtering chamber through the second path, and the whole filtering system does not need to stop working.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a high-efficiency sewage filter. Background Art

[0002] The Y-type filter is Y-shaped, with one end for water and other fluids to pass through, and the other end for settling waste and impurities. It is also called a decontamination device or filter valve. It is usually installed at the inlet of a pressure reducing valve, a pressure relief valve, a water level valve or other equipment. Its function is to remove impurities in the water to protect the normal operation of the valve and equipment.

[0003] When the fluid enters the filter cartridge with a filter screen of a certain specification, its impurities are blocked, and the clean filtrate is discharged from the filter outlet. When cleaning is required, just take out the detachable filter cartridge, process it and reinstall it.

[0004] When the existing Y-type filter is removed for cleaning, the switch valve of the entire filtration system needs to be closed. After the filter cartridge is cleaned and reinstalled, the switch valve is opened to perform normal filtration. The cleaning or replacement of the filter cartridge causes the filtration process to be suspended, affecting the working efficiency of the filtration system. Utility Model Content

[0005] The purpose of the utility model is to provide a high-efficiency sewage filter to solve the problems in the above-mentioned background technology and improve the filtering efficiency of the filtering system.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is to provide a high-efficiency sewage filter, including a body and a switching valve, the body including a liquid inlet chamber, a main filter chamber, a secondary filter chamber and a liquid outlet chamber, the main filter chamber is provided with a main filter element, and the secondary filter chamber is provided with a secondary filter element; the switching valve includes a valve core, the valve core is arranged in the liquid inlet chamber, and the valve core is provided with a first channel, a second channel and a third channel that are interconnected; when the valve core is in an initial state, the liquid passes through two paths, the first path is to pass through the liquid inlet chamber, the first channel, the second channel, the main filter chamber and the secondary filter chamber in sequence. The liquid outlet chamber, the second path is to pass through the liquid inlet chamber, the first channel, the third channel, the slave filter chamber and the liquid outlet chamber in sequence; after the valve core rotates, the valve core cuts off the connection between the liquid inlet chamber and the main filter chamber, and the liquid passes through the liquid inlet chamber, the second channel, the first channel, the slave filter chamber and the liquid outlet chamber in sequence; or after the valve core rotates, the valve core cuts off the connection between the liquid inlet chamber and the slave filter chamber, and the liquid passes through the liquid inlet chamber, the third channel, the first channel, the main filter chamber and the liquid outlet chamber in sequence.

[0007] Furthermore, the liquid inlet chamber, the main filter chamber, the secondary filter chamber and the liquid outlet chamber are integrally formed, and a blocking wall is provided between the main filter chamber and the secondary filter chamber.

[0008] Furthermore, the valve core is a spherical plug body, and a three-way channel is provided on the spherical plug body, and the three-way channel respectively forms the first channel, the second channel and the third channel.

[0009] Furthermore, a ball bowl chamber matched with the spherical plug body is provided in the liquid inlet chamber, and a side wall of the ball bowl chamber is the blocking wall.

[0010] Furthermore, the main filter chamber and the secondary filter chamber are symmetrically arranged on both sides of the liquid inlet chamber, the second channel and the third channel are located in the same straight line and are arranged to penetrate each other, and the first channel is perpendicular to the second channel and the third channel.

[0011] Furthermore, the switching valve includes a knob, which is arranged on the outside of the body. The knob extends into the liquid inlet chamber through a connecting rod and is connected to the valve core.

[0012] Furthermore, the switching valve further includes a limiter, which is disposed on the main body and limits the rotation of the knob or the valve core.

[0013] Furthermore, the knob is a flat knob.

[0014] Furthermore, a lubricating layer is applied on the surfaces of the spherical plug body and the ball bowl chamber.

[0015] Furthermore, one end of the main filter chamber and the secondary filter chamber is provided with a detachably connected valve cover, the valve cover is provided with a sewage outlet, and the sewage outlet is provided with a sewage valve.

[0016] The beneficial effects of the utility model are:

[0017] 1. In the initial state, the liquid passes through the main filter chamber of the first path and the slave filter chamber of the second path. The main filter element and the slave filter element are filtered at the same time. At this time, the filter has a higher filtering efficiency. When the main filter element needs to be replaced and cleaned after being used for a period of time, the valve core can be rotated to cut off the connection between the liquid inlet chamber and the main filter chamber, and the main filter element can be replaced. At this time, the sewage can pass through the second path and be filtered normally in the slave filter chamber, and the entire filtering system does not need to stop working. When the main filter element is replaced, the valve core rotates and resets, and the filter returns to the initial filtering state.

[0018] 2. The liquid inlet chamber, main filter chamber, secondary filter chamber and liquid outlet chamber are integrally formed, which is convenient for processing and casting and has good structural strength. A blocking wall is provided between the main filter chamber and the secondary filter chamber to separate the liquid inlet chamber from the liquid outlet chamber.

[0019] 3. The valve core is a spherical plug body, which is provided with a three-way channel, which respectively forms the first channel, the second channel and the third channel. A ball bowl chamber matching the spherical plug body is provided in the liquid inlet chamber, and one side wall of the ball bowl chamber is a blocking wall. The spherical valve plug rotates in the ball bowl chamber, which facilitates the connection and blocking of the first channel, the second channel and the third channel.

[0020] 4. The switching valve includes a knob, which is arranged on the outside of the body. The knob extends into the liquid inlet chamber through a connecting rod and is connected to the valve core. The rotation of the knob can drive the rotation of the valve core, thereby realizing the switching of the filtering path. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a high-efficiency sewage filter provided by an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of a first working state of a high-efficiency sewage filter provided by an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of a second working state of a high-efficiency sewage filter provided by an embodiment of the utility model;

[0025] Figure 4 A schematic diagram of a third working state of a high-efficiency sewage filter provided by an embodiment of the utility model;

[0026] Figure 5 The present invention provides an overall structural diagram of a switching valve used in a high-efficiency sewage filter according to an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1. Main body; 11. Liquid inlet chamber; 12. Main filter chamber; 121. Blocking wall; 122. Bowl chamber; 13. Slave filter chamber; 14. Liquid outlet chamber; 15. Main filter element; 16. Slave filter element; 17. Valve cover; 18. Drain port; 19. Drain valve; 2. Switch valve; 21. Valve core; 22. First channel; 23. Second channel; 24. Third channel; 25. Knob; 26. Connecting rod. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] Reference Figures 1 to 5As a high-efficiency sewage filter provided by an embodiment of the utility model, the utility model comprises a body 1 and a switching valve 2. The body 1 comprises a liquid inlet chamber 11, a main filter chamber 12, a secondary filter chamber 13 and a liquid outlet chamber 14. A main filter element 15 is arranged in the main filter chamber 12, and a secondary filter element 16 is arranged in the secondary filter chamber 13. The switching valve 2 comprises a valve core 21, which is arranged in the liquid inlet chamber 11. The valve core 21 is provided with a first channel, a second channel and a third channel which are interconnected. When the valve core 21 is in an initial state, the liquid passes through two paths. The first path is to pass through the liquid inlet chamber 11, the first channel 22, the second channel 23, The main filter chamber 12 and the liquid outlet chamber 14, the second path is to pass through the liquid inlet chamber 11, the first channel 22, the third channel 24, the slave filter chamber 13 and the liquid outlet chamber 14 in sequence; after the valve core 21 rotates, the valve core 21 cuts off the connection between the liquid inlet chamber and the main filter chamber 12, and the liquid passes through the liquid inlet chamber, the second channel 23, the first channel 22, the slave filter chamber 13 and the liquid outlet chamber 14 in sequence; or after the valve core 21 rotates, the valve core 21 cuts off the connection between the liquid inlet chamber and the slave filter chamber 13, and the liquid passes through the liquid inlet chamber, the third channel 24, the first channel 22, the main filter chamber 12 and the liquid outlet chamber 14 in sequence.

[0034] In the initial state, the liquid passes through the main filter chamber 12 of the first path and the slave filter chamber 13 of the second path, and the main filter element 15 and the slave filter element 16 are filtered at the same time, and the filtering efficiency of the filter is higher at this time. When the main filter element 15 needs to be replaced and cleaned after being used for a period of time, the valve core 21 can be rotated, and the valve core 21 cuts off the connection between the liquid inlet chamber and the main filter chamber 12, and the main filter element 15 can be replaced. At this time, the sewage can be filtered normally in the slave filter chamber 13 through the second path, and the entire filtering system does not need to be suspended. When the main filter element 15 is replaced, the valve core 21 rotates and resets, and the filter returns to the initial filtering state. Similarly, when the slave filter element 16 needs to be replaced and cleaned after being used for a period of time, the valve core 21 can be rotated, and the valve core 21 cuts off the connection between the liquid inlet chamber and the slave filter chamber 13, and the slave filter element 16 can be replaced. At this time, the sewage can be filtered normally in the main filter chamber 12 through the first path, and the entire filtering system does not need to be suspended. After the filter element 16 is replaced, the valve core 21 rotates and resets, and the filter returns to the initial filtering state.

[0035] Specifically, the liquid inlet chamber 11, the main filter chamber 12, the secondary filter chamber 13 and the liquid outlet chamber 14 are integrally formed, which is convenient for processing and casting and has good structural strength. A blocking wall 121 is provided between the main filter chamber 12 and the secondary filter chamber 13 to separate the liquid inlet chamber 11 from the liquid outlet chamber 14. In this embodiment, the valve core 21 is a spherical plug body, and a three-way channel is provided on the spherical plug body, and the three-way channel forms a first channel 22, a second channel 23 and a third channel 24 respectively. A ball bowl chamber 122 that matches the spherical plug body is provided in the liquid inlet chamber 11, and a side wall of the ball bowl chamber 122 is a blocking wall 121. The spherical valve plug rotates in the ball bowl chamber 122, which facilitates the connection and blocking of the first channel 22, the second channel 23 and the third channel 24. The surface of the spherical plug body and the ball bowl chamber 122 adopts a lubricating layer to reduce the sliding friction between the two and facilitate the rotation of the spherical plug. Among them, in order to facilitate the processing and manufacturing of the main body 1, the main filter chamber 12 and the slave filter chamber 13 are symmetrically arranged on both sides of the liquid inlet chamber 11. At the same time, in order to facilitate the switching of the valve core 21, the second channel 23 and the third channel 24 are located in the same straight line and the two are arranged through each other, and the first channel 22 is perpendicular to the second channel 23 and the third channel 24.

[0036] Furthermore, the switching valve 2 includes a knob 25, which is disposed outside the body 1. The knob 25 extends into the liquid inlet chamber 11 through a connecting rod 26 and is connected to the valve core 21. The rotation of the knob 25 can drive the rotation of the valve core 21, thereby realizing the switching of the filtering path.

[0037] Specifically, the knob 25 is a straight knob 25. When the knob 25 is arranged in parallel with the liquid inlet chamber 11 and the liquid outlet chamber 14, this is the initial state of the valve core 21, and the main filter chamber 12 and the secondary filter chamber 13 perform filtering operations simultaneously. The switching valve 2 also includes a limiter, which is arranged on the body 1 and limits the rotation of the knob 25 or the valve core 21. In this embodiment, the limiter is a gear protrusion, and two gear protrusions are arranged on the outer wall of the liquid inlet chamber 11, and the knob 25 rotates between the two gear protrusions. When switching to abutting one of the gear protrusions, the first path is blocked at this time, and the main filter element 15 can be replaced. After the replacement is completed, the knob 25 is switched to a horizontal state. When switching to abutting the other gear protrusion, the second path is blocked at this time, and the secondary filter element 16 can be replaced. After the replacement is completed, the knob 25 is switched to a horizontal state.

[0038] Furthermore, one end of the main filter chamber 12 and the slave filter chamber 13 is provided with a detachably connected valve cover 17, which is convenient for removing the valve cover 17 to replace the filter element. The valve cover 17 is provided with a drain port 18, and the drain port 18 is provided with a drain valve 19. By setting the drain valve 19, the filter element can be cleaned and drained regularly. In this embodiment, when the main filter element 15 or the slave filter element 16 is used for a short time, the filter element can be directly cleaned through the drain valve 19. However, when the main filter element 15 or the slave filter element 16 is used for a long time, it is no longer possible to clean it thoroughly through the drain valve 19, so it is necessary to remove the valve cover 17 and replace and clean the filter element.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-efficiency sewage filter, characterized in that: include: The body (1) comprises a liquid inlet chamber (11), a main filter chamber (12), a secondary filter chamber (13) and a liquid outlet chamber (14); a main filter element (15) is arranged in the main filter chamber (12), and a secondary filter element (16) is arranged in the secondary filter chamber (13); A switching valve (2) comprising a valve core (21), wherein the valve core (21) is arranged in the liquid inlet chamber (11), and the valve core (21) is provided with a first channel, a second channel and a third channel which are interconnected; When the valve core (21) is in an initial state, the liquid passes through two paths, the first path sequentially passing through the liquid inlet chamber (11), the first channel (22), the second channel (23), the main filter chamber (12) and the liquid outlet chamber (14), and the second path sequentially passing through the liquid inlet chamber (11), the first channel (22), the third channel (24), the secondary filter chamber (13) and the liquid outlet chamber (14); After the valve core (21) rotates, the valve core (21) cuts off the connection between the liquid inlet chamber and the main filter chamber (12), and the liquid passes through the liquid inlet chamber, the second channel (23), the first channel (22), the secondary filter chamber (13) and the liquid outlet chamber (14) in sequence; Or after the valve core (21) rotates, the valve core (21) cuts off the connection between the liquid inlet chamber and the secondary filter chamber (13), and the liquid passes through the liquid inlet chamber, the third channel (24), the first channel (22), the main filter chamber (12) and the liquid outlet chamber (14) in sequence.

2. The high-efficiency sewage filter according to claim 1, characterized in that: The liquid inlet chamber (11), the main filter chamber (12), the secondary filter chamber (13) and the liquid outlet chamber (14) are integrally formed, and a blocking wall (121) is provided between the main filter chamber (12) and the secondary filter chamber (13).

3. The high-efficiency sewage filter according to claim 2, characterized in that: The valve core (21) is a spherical plug body, and a three-way channel is provided on the spherical plug body, and the three-way channel respectively forms the first channel (22), the second channel (23) and the third channel (24).

4. The high-efficiency sewage filter according to claim 3, characterized in that: A ball bowl chamber (122) matched with the spherical plug body is provided in the liquid inlet chamber (11), and a side wall of the ball bowl chamber (122) is the blocking wall (121).

5. The high-efficiency sewage filter according to claim 3, characterized in that: The main filter chamber (12) and the secondary filter chamber (13) are symmetrically arranged on both sides of the liquid inlet chamber (11), the second channel (23) and the third channel (24) are located in the same straight line and are arranged to penetrate each other, and the first channel (22) is perpendicular to the second channel (23) and the third channel (24).

6. The high-efficiency sewage filter according to claim 1, characterized in that: The switching valve (2) comprises a knob (25), wherein the knob (25) is arranged on the outside of the body (1), and the knob (25) extends into the liquid inlet chamber (11) through a connecting rod (26) and is connected to the valve core (21).

7. The high-efficiency sewage filter according to claim 6, characterized in that: The switching valve (2) further comprises a limiter, which is arranged on the body (1) and limits the rotation of the knob (25) or the valve core (21).

8. The high-efficiency sewage filter according to claim 6, characterized in that: The knob (25) is a flat knob (25).

9. The high-efficiency sewage filter according to claim 4, characterized in that: The surfaces of the spherical plug body and the ball bowl chamber (122) are provided with a lubricating layer.

10. The high-efficiency sewage filter according to claim 1, characterized in that: One end of each of the main filter chamber (12) and the secondary filter chamber (13) is provided with a detachably connected valve cover (17), the valve cover (17) is provided with a sewage outlet (18), and the sewage outlet (18) is provided with a sewage valve (19).

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