Sewage suction filtration device

By designing a sewage suction filter device with automatic reverse flushing and aligned flushing, the problem of filter mesh blockage in the prior art is solved, automatic cleaning is realized, cost savings, and suitable for river sewage treatment in different environments.

CN222900349UActive Publication Date: 2025-05-27NINGBO WATER ENVIRONMENT GROUP CO LTD
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Patent Information

Application Number
CN202421624895.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-10
Publication Date
2025-05-27
Estimated Expiration
2034-07-10

AI Technical Summary

Technical Problem

The filter mesh of existing river sewage suction filter devices is prone to clogging during long-term use, resulting in a large amount of manual disassembly, cleaning or replacement, increasing labor and material costs.

Method used

A sewage suction filter device is designed to achieve regular automatic reverse flushing of the filter plate and alignment flushing of the filter holes through clever structure to avoid clogging.

Benefits of technology

It realizes automatic cleaning of the suction filter device without manual disassembly, cleaning and replacement, saving labor and material costs, and is suitable for river sewage treatment in different environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the sewage suction filtration device, a suction filtration main body is installed above a base, a water guide opening is connected to the upper wall of the interior of the suction filtration main body in a penetrating mode, a water tank is connected to the upper portion of the suction filtration main body, a left oil cylinder is arranged on the left side of the interior of the water tank, and a transverse push rod is connected to one side of the left oil cylinder in a sealed and sliding mode; a connecting rod is installed below the water guide opening, a connecting shaft is arranged on the lower portion in the suction filtration body, and a right oil cylinder is installed on the right side in the suction filtration body. Through ingenious arrangement of the structure, the filter plates in the device can be regularly and automatically subjected to back flushing, and staggered filter holes between the two filter plates can be aligned and flushed, so that the problem that the filter holes in the filter plates are blocked can be effectively avoided; furthermore, the suction filtration device can be automatically cleaned at regular intervals without regular manual disassembly, cleaning and replacement, so that the labor cost and the material cost are saved.
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Description

Technical Field

[0001] The utility model relates to the technical field of river sewage treatment, in particular to a sewage extraction and filtering device. Background Art

[0002] The treatment of river sewage is a project that the country attaches great importance to. Its treatment methods are usually divided into chemical treatment and physical treatment. There are many types of physical treatment, among which the filtration of river sewage has become a common treatment method;

[0003] The principle of filtration treatment for river sewage is: first, the river sewage is sucked out by a water pump, and then the sucked sewage is filtered through a filter net. However, the filter net is prone to clogging during long-term use. Since the filter net is engaged inside the filtration device, if it is disassembled and cleaned or replaced manually, it will consume a lot of manpower and increase the material cost of replacing the filter net. Therefore, it is necessary to provide a sewage filtration device to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a sewage filtration device to solve the problem that the filter screen inside the existing filtration device mentioned in the above background technology is prone to clogging during long-term use. Since the filter screen is engaged inside the filtration device, if it is disassembled and cleaned or replaced manually, it will consume a lot of manual labor and increase the material cost of replacing the filter screen. The technical solution of the utility model is aimed at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sewage filtration device, comprising a base, a filtration body is installed above the base, and a water guide port is penetrated and connected to the upper wall of the filtration body, a water tank is connected above the filtration body, a left oil cylinder is arranged on the left side of the water tank, and a horizontal push rod is sealingly and slidably connected to one side of the left oil cylinder, a connecting rod is installed below the water guide port, and a connecting shaft is arranged below the filtration body, and a right oil cylinder is installed on the right side of the filtration body.

[0006] In a further embodiment, a sewage outlet is provided on one side of the filtration body.

[0007] In a further embodiment, a left sealing plate is slidingly and sealingly connected below the left oil cylinder.

[0008] In a further embodiment, a piston plate is installed at the left end of the transverse push rod, and a vertical push rod is connected below the transverse push rod, a first rack plate is provided at the end of the vertical push rod, and an extrusion piece is installed at one end of the first rack plate, the piston plate and the left oil cylinder form a sliding structure, the extrusion piece and the water guide port form a left-right sliding structure, and the water guide port is inclined.

[0009] In a further embodiment, first torsion springs are connected to the outer sides of both ends of the connecting rod, a rotating plate is installed on the outer side of the connecting rod, and a gear is connected to the outer side of the connecting rod.

[0010] In a further embodiment, a filter plate is connected to the outside of the connecting shaft, and second torsion springs are arranged on the outside of both ends of the connecting shaft, a hinge rod is movably hinged on one side of the filter plate, and a slider is movably hinged on the end of the hinge rod.

[0011] In a further embodiment, the slider forms a left-right sliding structure with the filtration body through a dovetail groove below.

[0012] In a further embodiment, a second rack plate is sealingly and slidably connected to one side of the right oil cylinder, and a right sealing plate is sealingly and slidably connected to the lower part of the right oil cylinder, and the upper part of the second rack plate is meshed with the gear.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can regularly and automatically backwash the filter plate inside the device through the ingenious arrangement of the structure, and can also align and flush the misaligned filter holes between the two filter plates, thereby effectively avoiding the problem of clogging of the filter holes inside the filter plate, thereby realizing that the filtration device can be cleaned regularly and automatically without manual regular disassembly, cleaning and replacement, saving labor costs and material costs;

[0015] 2. The utility model, in summary, is suitable for river sewage treatment in different outdoor environments. As long as the water pump is powered, sewage can be filtered without manual supervision. The filtration is automatic, and the filter plate is automatically backwashed regularly through the setting of the structure, so it is widely used. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a preferred embodiment of the sewage extraction and filtration device provided by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the installation structure of the first rack plate and the extrusion member is shown;

[0018] Figure 3 for Figure 2 A is shown as an enlarged structural schematic diagram.

[0019] In the figure: 1. base; 2. filter body; 201. water guide port; 202. sewage outlet; 3. water tank; 4. left oil cylinder; 401. left sealing plate; 5. horizontal push rod; 501. piston plate; 502. vertical push rod; 503. first rack plate; 504. extrusion member; 6. connecting rod; 601. first torsion spring; 602. rotating plate; 603. gear; 7. connecting shaft; 701a. filter plate; 701b. second torsion spring; 702. hinged rod; 703. slider; 8. right oil cylinder; 801. second rack plate; 802. right sealing plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] See also Figure 1-3 The utility model provides an embodiment: a sewage filtration device, including a base 1, a filtration body 2, a water guide port 201, a sewage outlet 202, a water tank 3, a left oil cylinder 4, a left sealing plate 401, a horizontal push rod 5, a piston plate 501, a vertical push rod 502, a first rack plate 503, an extrusion piece 504, a connecting rod 6, a first torsion spring 601, a rotating plate 602, a gear 603, a connecting shaft 7, a filter plate 701a, a second torsion spring 701b, a hinge rod 702, a sliding Block 703, right oil cylinder 8, second rack plate 801 and right sealing plate 802, a suction filter body 2 is installed above the base 1, and a water guide port 201 is penetrated and connected to the upper wall inside the suction filter body 2, a water tank 3 is connected above the suction filter body 2, a left oil cylinder 4 is arranged on the left side inside the water tank 3, and a horizontal push rod 5 is sealingly and slidably connected to one side of the left oil cylinder 4, a connecting rod 6 is installed below the water guide port 201, and a connecting shaft 7 is arranged at the bottom inside the suction filter body 2, and a right oil cylinder 8 is installed on the right side inside the suction filter body 2.

[0022] Example 1: Please refer to Figure 1-3, the first torsion spring 601 is connected to the outer side of both ends of the connecting rod 6, and a rotating plate 602 is installed on the outer side of the connecting rod 6, and a gear 603 is connected to the outer side of the connecting rod 6. The left sealing plate 401 is slidably and sealedly connected to the lower part of the left oil cylinder 4. A piston plate 501 is installed on the left end of the horizontal push rod 5, and a vertical push rod 502 is connected to the lower part of the horizontal push rod 5. A first rack plate 503 is arranged at the end of the vertical push rod 502, and an extrusion piece 504 is installed at one end of the first rack plate 503. The piston plate 501 and the left oil cylinder 4 form a sliding structure, and the extrusion piece 504 and the water guide port 201 form a left-right sliding structure, and the water guide port 201 is inclined. A second rack plate 801 is slidably and sealedly connected to one side of the inside of the right oil cylinder 8, and a right sealing plate 802 is slidably and sealedly connected to the lower part of the inside of the right oil cylinder 8. The upper part of the second rack plate 801 is meshed with the gear 603;

[0023] When the suction filtration body 2 is in the process of treating sewage, clean water also enters the inner side of the upper water tank 3 at the same time. When the inner side of the water tank 3 is filled, the water inside the water guide port 201 is also in a flooded state. At this time, clean water continues to enter from the water inlet pipe above the water tank 3, so that the extrusion member 504 on the left side of the lower side of the water guide port 201 is squeezed by the water and gradually moves to the left. When the extrusion member 504 moves to the left, it also drives the first rack plate 503, the vertical push rod 502, the horizontal push rod 5 and the piston plate 501 to move to the left at the same time. The extrusion member 504 moves to the left, and the filter plate 701a can be pushed and flipped to the left around the connecting shaft 7 by the left movement of the extrusion member 504, so that the filter plate 701a is in a tilted state, and the filter holes between the two filter plates 701a are aligned at the same time.

[0024] The leftward movement of the first rack plate 503 can drive the several gears 603 below to rotate in the opposite direction, and at the same time, the connecting rod 6 and the rotating plate 602 can flip in the opposite direction at a small angle under the torsional elastic force of the first torsion spring 601, so that the several rotating plates 602 can tilt the outlet below the water outlet 201 and make the opening below the water outlet 201 face the inclined surface of the filter plate 701a, so that the clean water inside the water tank 3 can be flushed toward the back side of the filter plate 701a, and then the overlapping and aligned filter holes between the two filter plates 701a can be cleaned, thereby effectively preventing the problem of debris and sludge clogging the filter plate 701a.

[0025] Example 2: Please refer to Figure 1 , which is different from Example 1 in that: a filter plate 701a is connected to the outside of the connecting shaft 7, and second torsion springs 701b are arranged on the outside of both ends of the connecting shaft 7, a hinge rod 702 is movably hinged on one side of the filter plate 701a, and a slider 703 is movably hinged on the end of the hinge rod 702, and a dovetail groove is formed below the slider 703 with the suction filter body 2 to form a left-right sliding structure, and a sewage outlet 202 is opened on one side of the suction filter body 2;

[0026] When the gear 603 rotates counterclockwise, it can drive the second rack plate 801 to move right, so that the oil inside the right oil cylinder 8 squeezes the right sealing plate 802 downward, thereby effectively blocking the water outlet below; when the push rod 5 moves to the left, it can drive the piston plate 501 to move left and squeeze the oil inside the left oil cylinder 4, so that the left sealing plate 401 squeezes downward to block the water inlet; when the push rod 5 moves to the left, it can also drive the upper rod and connecting block to block the water inlet above the water tank 3. This structure facilitates the clean water inside the water tank 3 to fully reversely flush the filter plate 701a; when the filter plate 701a flips over in the opposite direction, it can drive the hinged rod 702 and the slider 703 to push to the left, so that the sewage after the reverse flushing of the filter plate 701a can be discharged from the sewage outlet 202;

[0027] When the clean water in the water tank 3 is drained, the extruding member 504 loses the extruding force of the water, and all the changed structures can be reset under the torsion reset action of the first torsion spring 601 and the second torsion spring 701b.

[0028] Working principle: Figure 1-3 As shown, when sewage is pumped into the filtration body 2 from the left water inlet by a water pump, it can be filtered through the filter plate 701a, and the clean water after filtering will be discharged from the right water outlet;

[0029] Since the filter plate 701a is prone to clogging during long-term use, the present application can periodically backwash the clogged filter plate 701a without manually disassembling, cleaning and replacing the filter plate 701a; the specific steps are as follows:

[0030] When the suction filtration body 2 is in the process of treating sewage, clean water also enters the inner side of the upper water tank 3 at the same time. When the inner side of the water tank 3 is filled, the water inside the water guide port 201 is also in a flooded state. At this time, clean water continues to enter from the water inlet pipe above the water tank 3, so that the extrusion member 504 on the left side of the lower side of the water guide port 201 is squeezed by the water and gradually moves to the left. When the extrusion member 504 moves to the left, it also drives the first rack plate 503, the vertical push rod 502, the horizontal push rod 5 and the piston plate 501 to move to the left at the same time. The extrusion member 504 moves to the left, and the filter plate 701a can be pushed and flipped to the left around the connecting shaft 7 by the left movement of the extrusion member 504, so that the filter plate 701a is in a tilted state, and the filter holes between the two filter plates 701a are aligned at the same time.

[0031] The first rack plate 503 moves to the left, which can drive the several gears 603 below to rotate in the opposite direction, and at the same time, the connecting rod 6 and the rotating plate 602 are turned in the opposite direction at a small angle under the torsional elastic force of the first torsion spring 601, so that the several rotating plates 602 open the outlet below the water guide port 201 in an inclined manner, and make the opening below the water guide port 201 face the inclined surface of the filter plate 701a, so that the clean water inside the water tank 3 is flushed toward the back side of the filter plate 701a, and then the overlapping and aligned filter holes between the two filter plates 701a can be cleaned, thereby effectively preventing the problem of debris and sludge blocking the filter plate 701a;

[0032] When the gear 603 rotates counterclockwise, it can drive the second rack plate 801 to move right, so that the oil inside the right oil cylinder 8 squeezes the right sealing plate 802 downward, thereby effectively blocking the water outlet below; when the push rod 5 moves to the left, it can drive the piston plate 501 to move left and squeeze the oil inside the left oil cylinder 4, so that the left sealing plate 401 squeezes downward to block the water inlet; when the push rod 5 moves to the left, it can also drive the upper rod and connecting block to block the water inlet above the water tank 3. This structure facilitates the clean water inside the water tank 3 to fully reversely flush the filter plate 701a; when the filter plate 701a flips over in the opposite direction, it can drive the hinged rod 702 and the slider 703 to push to the left, so that the sewage after the reverse flushing of the filter plate 701a can be discharged from the sewage outlet 202;

[0033] When the clean water in the water tank 3 is drained, the extruding member 504 loses the extruding force of the water, and all the changed structures can be reset under the torsion reset action of the first torsion spring 601 and the second torsion spring 701b.

[0034] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. In the description of the present invention, unless otherwise specified, "multiple" means two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply 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 a limitation of the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" 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 directly connected or indirectly connected through an intermediate medium. 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] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A sewage filtration device, comprising a base (1), characterized in that: A suction filter body (2) is installed above the base (1), and a water guide port (201) is connected to the upper wall of the suction filter body (2). A water tank (3) is connected to the top of the suction filter body (2). A left oil cylinder (4) is provided on the left side of the water tank (3), and a horizontal push rod (5) is sealingly and slidably connected to one side of the left oil cylinder (4). A connecting rod (6) is installed below the water guide port (201), and a connecting shaft (7) is provided at the bottom of the suction filter body (2). A right oil cylinder (8) is installed on the right side of the suction filter body (2).

2. A sewage extraction and filtration device according to claim 1, characterized in that: A sewage outlet (202) is provided on one side of the suction filtration body (2).

3. A sewage extraction and filtration device according to claim 1, characterized in that: A left sealing plate (401) is slidably and sealingly connected below the left oil cylinder (4).

4. A sewage extraction and filtration device according to claim 1, characterized in that: A piston plate (501) is installed at the left end of the horizontal push rod (5), and a vertical push rod (502) is connected below the horizontal push rod (5). A first rack plate (503) is provided at the end of the vertical push rod (502), and an extrusion piece (504) is installed at one end of the first rack plate (503). The piston plate (501) and the left oil cylinder (4) form a sliding structure, and the extrusion piece (504) and the water guide port (201) form a left-right sliding structure, and the water guide port (201) is inclined.

5. A sewage extraction and filtration device according to claim 1, characterized in that: The outer sides of both ends of the connecting rod (6) are connected to first torsion springs (601), a rotating plate (602) is installed on the outer side of the connecting rod (6), and the outer side of the connecting rod (6) is connected to a gear (603).

6. A sewage extraction and filtration device according to claim 1, characterized in that: The outside of the connecting shaft (7) is connected to a filter plate (701a), and second torsion springs (701b) are arranged on the outside of both ends of the connecting shaft (7); one side of the filter plate (701a) is movably hinged with a hinge rod (702), and the end of the hinge rod (702) is movably hinged with a slider (703).

7. A sewage extraction and filtration device according to claim 6, characterized in that: The slider (703) forms a left-right sliding structure with the filtration body (2) via a dovetail groove below.

8. A sewage extraction and filtration device according to claim 5, characterized in that: A second rack plate (801) is sealingly and slidably connected to one side of the right oil cylinder (8), and a right sealing plate (802) is sealingly and slidably connected to the lower part of the right oil cylinder (8), and the upper part of the second rack plate (801) is meshed with the gear (603).