A multi-stage multi-media filter

Abstract

This utility model relates to the field of filter technology, specifically a multi-stage, multi-media filter, including a housing, a connecting frame fixedly connected inside the housing, and a driving component mounted on the housing; a filter screen is mounted on the connecting frame, and a pushing assembly is mounted on the connecting frame, the pushing assembly including a slide rod, one end of which is fixedly connected to a trigger head, the trigger head being equipped with an elastic element; a connecting shaft is fixedly connected to the output end of the driving component, and a trigger rod is fixedly connected to the connecting shaft, one side of which is provided with an inclined surface, the position of the inclined surface corresponding to the position of the trigger head. The beneficial effect is that when backwashing is required to clean the filter media layer, the looseness of the filter media layer itself allows the filter media in the same layer to rub against each other, combined with the cleaning of the backwash water, preventing the filter media layer from becoming caked or clumped, ensuring that the pores between the filter media are not blocked, thereby ensuring the filtration effect and flow rate.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a multi-stage, multi-media filter. Background Technology

[0002] Multi-stage, multi-media filters are highly efficient water treatment devices that achieve deep purification of suspended solids, colloids, organic matter, and some microorganisms in water through the combination of multiple layers of different filter media and a graded filtration mechanism. They are widely used in industrial pretreatment, municipal water supply, and pre-filtration of reverse osmosis systems.

[0003] A multi-stage, multi-media filter disclosed in Chinese patent CN222930477U performs multi-media filtration through diatomaceous earth and fiberglass cloth inside the auxiliary filter housing. Filtered clean water flows into the outlet pipe through a water guide channel, completing the multi-layer filtration process. Incompletely filtered wastewater is pressurized by an air pump, forcing it into a circulation pipe for secondary filtration through the filter element, thus improving the filtration effect and facilitating long-term operation. However, compared with existing technologies and comparative solutions, this filter still has the following problems in actual use:

[0004] As usage time increases, filtered impurities continue to accumulate, causing the loose media to clump together from granular form. Simultaneously, if the treated water contains organic matter, microorganisms easily proliferate on the media, forming a biofilm, which further leads to media clumping. Current technologies typically remove impurities blocked by the media through backwashing, but this cannot effectively remove sticky pollutants like biofilms. Once the media clumps, the pores between the media become blocked, and the resistance in the clumped areas becomes too high. Water flow preferentially chooses to flow around the unclumped gaps or the edges of the media layer. This bypassed water does not undergo complete multi-media filtration and directly mixes with the compliant water, resulting in a decrease in overall effluent quality and creating a dual problem of substandard flow rate and water quality. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a multi-stage multi-media filter.

[0006] The purpose of this utility model is achieved through the following technical solution: a multi-stage multi-media filter, including a housing, a connecting frame fixedly connected inside the housing, and a driving component provided on the housing;

[0007] A filter screen is provided on the connecting frame, and an actuating component is provided on the connecting frame. The actuating component includes a slide rod, one end of which is fixedly connected to a trigger head, and an elastic element is provided on the trigger head.

[0008] The output end of the drive unit is fixedly connected to a connecting shaft, and a trigger rod is fixedly connected to the connecting shaft. One side of the trigger rod is provided with an inclined surface, and the position of the inclined surface corresponds to the position of the trigger head.

[0009] Preferably, the top of the housing is provided with a top cover, the drive component is fixedly installed on the top cover, the bottom of the housing is provided with a bottom cover, the housing is provided with a first inspection port and a filter media port, the connecting frame is located inside the housing, the top cover is provided with a second inspection port and a water inlet pipe, the bottom cover is provided with a third inspection port and a drain pipe, a diverter plate is fixedly connected to the top cover, and a filter plate is provided between the bottom cover and the housing.

[0010] Preferably, the interior of the outer shell is provided with multiple different filter media layers from top to bottom, and the connecting frame is disposed between adjacent filter media layers.

[0011] Preferably, the flow divider plate has multiple flow divider holes, which are evenly distributed on the flow divider plate.

[0012] Preferably, the slide bar is slidably connected to the connecting frame, and the elastic element is disposed between the trigger head and the connecting frame.

[0013] Preferably, the connecting shaft is rotatably connected to the middle of the connecting frame, and the connecting shaft is rotatably connected to the middle of the splitter plate.

[0014] Preferably, there are multiple actuating components evenly distributed on the connecting frame, and multiple trigger rods.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This multi-stage, multi-media filter utilizes the looseness of the filter media layer itself to allow the media within the same layer to rub against each other. Combined with the backwashing water, this prevents the filter media layer from becoming caked or clumped, ensuring that the pores between the media are not blocked, thereby guaranteeing filtration efficiency and flow rate.

[0017] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional structural diagram of the present invention when it is filled with filter media.

[0020] Figure 2 This is a cross-sectional view of the present invention without filter media.

[0021] Figure 3 This is a cross-sectional view of the outer shell and connecting frame of this utility model;

[0022] Figure 4 This is a first-view diagram of the split structure of the connecting frame of this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A;

[0024] Figure 6 This is a structural schematic diagram of the connecting frame of this utility model from a second perspective;

[0025] Figure 7 This is a structural schematic diagram of the driving component of this utility model.

[0026] In the diagram: 1. Outer shell; 101. Top cover; 102. Bottom cover; 103. First inspection port; 104. Filter media port; 105. Second inspection port; 106. Water inlet pipe; 107. Third inspection port; 108. Drain pipe; 109. Diverter plate; 110. Filter plate; 2. Connecting frame; 201. Filter screen; 202. Pushing assembly; 203. Slide rod; 204. Trigger head; 205. Elastic element; 3. Driving element; 301. Connecting shaft; 302. Trigger rod; 303. Inclined surface. Detailed Implementation

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0029] like Figures 1 to 3 As shown, a multi-stage multi-media filter includes a housing 1, a connecting frame 2 fixedly connected inside the housing 1, and a driving component 3 disposed on the housing 1;

[0030] like Figure 2 and Figure 3As shown, the top of the outer casing 1 is provided with a top cover 101, the drive component 3 is fixedly installed on the top cover 101, the bottom of the outer casing 1 is provided with a bottom cover 102, the outer casing 1 is provided with a first inspection port 103 and a filter media port 104, the connecting frame 2 is provided inside the outer casing 1, the inner side of the outer casing 1 is provided with a variety of different filter media layers from top to bottom, the connecting frame 2 is provided between adjacent filter media layers, the number of filter media ports 104 is multiple, each corresponding to a different filter media layer, the top cover 101 is provided with a second inspection port 105 and a water inlet pipe 106, the bottom cover 102 is provided with a third inspection port 107 and a drain pipe 108, the top cover 101 is fixedly connected with a diversion plate 109, the diversion plate 109 is provided with multiple diversion holes, the multiple diversion holes are evenly distributed on the diversion plate 109, and a filter plate 110 is provided between the bottom cover 102 and the outer casing 1.

[0031] like Figures 4 to 6 As shown, a filter screen 201 is provided on the connecting frame 2, and an actuating component 202 is provided on the connecting frame 2. There are multiple actuating components 202, which are evenly distributed on the connecting frame 2. The actuating component 202 includes a slide rod 203, which is slidably connected to the connecting frame 2. One end of the slide rod 203 is fixedly connected to a trigger head 204. An elastic element 205 is provided on the trigger head 204, and the elastic element 205 is disposed between the trigger head 204 and the connecting frame 2.

[0032] like Figure 2 and Figure 7 As shown, the output end of the drive unit 3 is fixedly connected to a connecting shaft 301, which is rotatably connected to the middle of the connecting frame 2 and the middle of the diverter plate 109. A trigger rod 302 is fixedly connected to the connecting shaft 301 by bolts. There are multiple trigger rods 302. One side of the trigger rod 302 is provided with an inclined surface 303, and the position of the inclined surface 303 corresponds to the position of the trigger head 204.

[0033] All electronic components mentioned in this article are electrically connected to an external main controller and 220V AC mains power. The main controller can be a conventional, known device such as a computer. The electronic components, along with their associated control systems, power supply modules, circuits, and piping, can be provided by the manufacturer. Furthermore, all electronic components and control modules involved in this invention are existing technologies, fully capable of being implemented by those skilled in the art, and require no further explanation. This invention does not involve any improvement to the structure or usage of the electronic components.

[0034] The work process is as follows:

[0035] S1. During use, the wastewater that needs to be filtered enters the outer shell 1 through the inlet pipe 106, and after being filtered by multiple layers of filter media and filter screen 201, it is discharged from the drain pipe 108.

[0036] S2. As the usage time increases, when it is necessary to backwash the filter media layer, the backwash water enters the outer shell 1 from the drain pipe 108, backwashes the filter media layer, and then discharges from the inlet pipe 106.

[0037] S3. Simultaneously, the drive unit 3 is activated. The drive unit 3 drives the trigger rod 302 to rotate through the connecting shaft 301. During the rotation of the trigger rod 302, when the inclined surface 303 on the trigger rod 302 passes through the push assembly 202, the push trigger head 204 moves upward, the elastic element 205 contracts, and the slide rod 203 pushes upward, pushing the filter material on the connecting frame 2 and the filter screen 201, so that the filter material layer is pushed.

[0038] S4. By utilizing the looseness of the filter media layer itself, the filter media in the same layer rub against each other. Combined with the backwashing water, this prevents the filter media layer from becoming caked or clumped, ensuring that the pores between the filter media are not blocked, thereby ensuring the filtration effect and flow rate.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A multi-stage, multi-media filter, characterized in that: Includes an outer shell (1), a connecting frame (2) is fixedly connected inside the outer shell (1), and a driving component (3) is provided on the outer shell (1); A filter screen (201) is provided on the connecting frame (2), and a push assembly (202) is provided on the connecting frame (2). The push assembly (202) includes a slide rod (203). One end of the slide rod (203) is fixedly connected to a trigger head (204), and an elastic element (205) is provided on the trigger head (204). The output end of the drive unit (3) is fixedly connected to a connecting shaft (301), and a trigger rod (302) is fixedly connected to the connecting shaft (301). A slope (303) is provided on one side of the trigger rod (302), and the position of the slope (303) corresponds to the position of the trigger head (204).

2. The multi-stage multi-media filter according to claim 1, characterized in that: The top of the outer casing (1) is provided with a top cover (101), the driving component (3) is fixedly installed on the top cover (101), the bottom of the outer casing (1) is provided with a bottom cover (102), the outer casing (1) is provided with a first inspection port (103) and a filter media port (104), the connecting frame (2) is provided inside the outer casing (1), the top cover (101) is provided with a second inspection port (105) and a water inlet pipe (106), the bottom cover (102) is provided with a third inspection port (107) and a drain pipe (108), a diverter plate (109) is fixedly connected to the top cover (101), and a filter plate (110) is provided between the bottom cover (102) and the outer casing (1).

3. A multi-stage, multi-media filter according to claim 2, characterized in that: The interior of the outer shell (1) is provided with a variety of different filter media layers from top to bottom, and the connecting frame (2) is provided between adjacent filter media layers.

4. A multi-stage multi-media filter according to claim 2, characterized in that: The flow divider plate (109) has multiple flow divider holes, which are evenly distributed on the flow divider plate (109).

5. A multi-stage multi-media filter according to claim 1, characterized in that: The slide bar (203) is slidably connected to the connecting frame (2), and the elastic element (205) is disposed between the trigger head (204) and the connecting frame (2).

6. A multi-stage multi-media filter according to claim 2, characterized in that: The connecting shaft (301) is rotatably connected to the middle part of the connecting frame (2), and the connecting shaft (301) is rotatably connected to the middle part of the diverter plate (109).

7. A multi-stage multi-media filter according to claim 1, characterized in that: The number of the top-moving components (202) is multiple and they are evenly distributed on the connecting frame (2), and the number of the trigger rods (302) is multiple.

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