AB type grid filtering device

Abstract

The utility model provides an AB type grating filtering device, which relates to the technical field of filtering equipment and comprises a filtering box, and a sewage inlet is arranged on the side surface of the filtering box; according to the utility model, by controlling the valves on the connecting pipes, when one filtering shell needs to be cleaned or the filter element needs to be replaced, the valve on the corresponding connecting pipe can be closed, and the U-shaped pipe and the sewage outlet pipe B can be opened, so that sewage is continuously filtered through the other filtering shell, and further, cleaning or replacement can be carried out without stopping a sewage supply system; when the filter element needs to be disassembled, the filter element can be easily taken out by only overcoming the tension of the tension spring and pulling out the limiting block from the limiting hole, the limiting hole is aligned during mounting, the limiting block is automatically clamped into the limiting hole under the action of the tension spring, and quick disassembly and assembly can be realized without a tool; meanwhile, the sealing ring is embedded into the sealing groove, so that the sealing performance of the filtering shell is ensured, and sewage leakage is prevented.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, and in particular to an AB type grid filtration device. Background Technology

[0002] Wastewater generated in industrial production, such as chemical, printing and dyeing, and papermaking industries, contains a large number of complex pollutants, such as chemical residues, fibers, and solid particles; urban sewage contains impurities such as domestic waste, feces, and suspended solids. If this wastewater is discharged directly without effective treatment, it will cause serious damage to the ecological environment, pollute water bodies and soil, endanger the survival of animals and plants, and even threaten human health.

[0003] In existing technologies, a bar screen filter needs to be added before sewage enters the wastewater collection tank to intercept larger suspended and floating objects in the sewage, such as branches, plastic bottles, paper, and plastic bags, in order to reduce the load on subsequent treatment processes and protect the equipment from damage. However, sewage bar screen filters need to be cleaned or replaced regularly. Traditional bar screen filters require the wastewater system to be shut down each time the filter is cleaned or replaced to prevent suspended and floating objects from entering the sewage system and clogging the system's pipe network and transfer pumps. This interrupts the entire sewage treatment process, increasing the time cost of sewage treatment. Furthermore, frequent stopping and restarting of the sewage system may affect the service life of the equipment in the system and increase equipment maintenance costs. Moreover, the installation and removal of filter cartridges is relatively cumbersome, often requiring specialized tools and consuming a lot of manpower and resources, which is not conducive to improving work efficiency. Utility Model Content

[0004] This utility model mainly provides an AB type grid filter device for filtration equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an AB-type grid filter device, comprising a filter box, an inlet on the side of the filter box, a filter plate inside the filter box, an outlet pipe A on the side of the filter box, a connecting pipe A and a connecting pipe B fixedly connected on the side of the outlet pipe A, valves inside the connecting pipe A and the connecting pipe B, a filter housing A fixedly installed on the side of the connecting pipe A, a filter housing B fixedly installed on the side of the connecting pipe B, a U-shaped pipe fixedly connected on the side of the filter housing A and the filter housing B, an outlet pipe B fixedly connected on the side of the U-shaped pipe, a connecting plate fixedly installed on the upper surface of the filter housing A and the filter housing B, a filter element inside the filter housing A and the filter element, an mounting block fixedly installed on the surface of the filter element, a sealing ring on the side of the mounting block, a sealing groove on the inner side of the connecting plate, a sliding limit block inside the mounting block, a limit hole on the inner side of the connecting plate, a guide rod fixedly installed inside the mounting block, and a tension spring sleeved on the surface of the guide rod.

[0006] Preferably, the sealing ring and the sealing groove are fitted together. This fitted connection effectively prevents sewage from leaking from the connection between the filter element and the connecting plate during the filtration process, thus ensuring the airtightness of the filtration.

[0007] Preferably, the mounting block and the connecting plate are slidably connected, and the limiting block and the limiting hole are slidably connected. Here, the sliding connection between the mounting block and the connecting plate and the sliding engagement between the limiting block and the limiting hole enable the filter element to be accurately aligned during installation and disassembly, facilitating the quick installation and replacement of the filter element.

[0008] Preferably, the limiting block and the guide rod are slidably connected, and there are two sets of limiting blocks, guide rods and tension springs. Here, by setting two sets of limiting blocks, guide rods and tension springs, and by slidably connecting the limiting block and the guide rod, the filter element is subjected to more uniform force during installation, which further ensures the stability of the filter element installation.

[0009] Preferably, one end of the tension spring is fixedly connected to the side of the limiting block, and the other end of the tension spring is fixedly connected to the inner side of the mounting block. Here, the limiting block and the mounting block are connected by the tension spring. When installing the filter element, it is necessary to overcome the tension of the tension spring to insert the limiting block into the limiting hole. When disassembling, the tension spring can help pull the limiting block out of the limiting hole, making the operation simpler and less strenuous, and improving the efficiency of filter element maintenance.

[0010] Preferably, a motor is fixedly installed on the surface of the filter box, a rotating rod is rotatably connected inside the filter box, a fixing block is fixedly installed on the surface of the rotating rod, and a crushing rod is fixedly installed on the surface of the fixing block. Here, the motor drives the rotating rod to rotate, and the fixing block on the rotating rod and the crushing rod on the fixing block rotate accordingly, which can crush larger dirt particles entering the filter box.

[0011] Preferably, the output end of the motor is fixedly connected to one end of the rotating rod. Here, by fixing the output end of the motor to the rotating rod, the power of the motor can be efficiently transmitted to the rotating rod, ensuring that the rotating rod rotates stably.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by controlling the valve on the connecting pipe, when one of the filter housings needs cleaning or replacement of the filter element, the valve on the corresponding connecting pipe can be closed, and the U-shaped pipe and the sewage outlet pipe B can be opened, allowing sewage to continue to be filtered through the other filter housing. This achieves cleaning or replacement without stopping the sewage supply system, thereby improving system operating efficiency and reducing operating costs. When the filter element needs to be disassembled, simply overcome the tension of the tension spring and pull the limiting block out of the limiting hole to easily remove the filter element. During installation, align the limiting hole, and the limiting block will automatically engage with the limiting hole under the action of the tension spring. This allows for quick disassembly and assembly without tools. At the same time, the sealing ring and the sealing groove fit together to ensure the sealing of the filter housing and prevent sewage leakage.

[0014] 2. In this utility model, by installing a motor on the surface of the filter box, when the motor is started, its output end drives the rotating rod to rotate, and at the same time the fixed block and the crushing rod will rotate synchronously, thereby realizing the crushing of larger solid impurities entering the filter box, which facilitates subsequent filtration and improves the filtration effect. Attached Figure Description

[0015] Figure 1 A perspective view of an AB-type grid filter device is provided for this utility model;

[0016] Figure 2 A side view of an AB-type grid filter device is provided for this utility model;

[0017] Figure 3 A cross-sectional view of an AB-type grid filter device is provided for this utility model;

[0018] Figure 4 This utility model provides exploded views of the filter element, mounting block, and limiting block of an AB-type grid filter device;

[0019] Figure 5 This utility model proposes an AB type grid filter device. Figure 4 Enlarged view of point A in the middle.

[0020] Legend: 1. Filter box; 2. Inlet; 3. Filter plate; 4. Outlet pipe A; 5. Connecting pipe A; 6. Connecting pipe B; 7. Valve; 8. Filter housing A; 9. Filter housing B; 10. U-shaped pipe; 11. Outlet pipe B; 12. Connecting disc; 13. Filter element; 14. Mounting block; 15. Sealing ring; 16. Sealing groove; 17. Limiting block; 18. Limiting hole; 19. Guide rod; 20. Tension spring; 21. Motor; 22. Rotating rod; 23. Fixing block; 24. Breaking rod. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Please see Figures 1-5 This utility model provides a technical solution: an AB type bar screen filter device, including a filter box 1, an inlet 2 on the side of the filter box 1, a filter plate 3 inside the filter box 1, an outlet pipe A4 on the side of the filter box 1, a connecting pipe A5 and a connecting pipe B6 fixedly connected to the side of the outlet pipe A4, valves 7 inside the connecting pipes A5 and B6, a filter housing A8 fixedly installed on the side of the connecting pipe A5, a filter housing B9 fixedly installed on the side of the connecting pipe B6, and a U-shaped pipe 10 fixedly connected to the sides of the filter housings A8 and B9. The side of pipe 10 is fixedly connected to the sewage outlet pipe B11. The upper surface of filter housing A8 and filter housing B9 is fixedly installed with a connecting plate 12. Filter element 13 is set inside filter housing A8 and filter housing B9. Mounting block 14 is fixedly installed on the surface of filter element 13. Sealing ring 15 is set on the side of mounting block 14. Sealing groove 16 is opened on the inner side of connecting plate 12. Limiting block 17 is slidably connected inside mounting block 14. Limiting hole 18 is opened on the inner side of connecting plate 12. Guide rod 19 is fixedly installed inside mounting block 14. Tension spring 20 is sleeved on the surface of guide rod 19.

[0024] like Figure 2 As shown, the sealing ring 15 and the sealing groove 16 are fitted together. Here, the fitted connection between the sealing ring 15 and the sealing groove 16 can effectively prevent sewage from leaking from the connection between the filter element 13 and the connecting plate 12 during the filtration process, thus ensuring the sealing performance of the filter.

[0025] like Figure 2 As shown, the mounting block 14 is slidably connected to the connecting plate 12, and the limiting block 17 is slidably connected to the limiting hole 18. Here, through the sliding connection between the mounting block 14 and the connecting plate 12 and the sliding engagement between the limiting block 17 and the limiting hole 18, the filter element 13 can be accurately aligned during installation and disassembly, which facilitates the quick installation and replacement of the filter element 13.

[0026] like Figure 2 As shown, the limiting block 17 is slidably connected to the guide rod 19. There are two sets of limiting blocks 17, guide rods 19 and tension springs 20. Here, by setting two sets of limiting blocks 17, guide rods 19 and tension springs 20, and by slidably connecting the limiting blocks 17 and guide rods 19, the filter element 13 is subjected to more uniform force during installation, which further ensures the stability of the filter element 13 installation.

[0027] like Figure 2 As shown, one end of the tension spring 20 is fixedly connected to the side of the limiting block 17, and the other end of the tension spring 20 is fixedly connected to the inner side of the mounting block 14. Here, the limiting block 17 and the mounting block 14 are connected by the tension spring 20. When installing the filter element 13, it is necessary to overcome the tension of the tension spring 20 to insert the limiting block 17 into the limiting hole 18. When disassembling, the tension spring 20 can assist in pulling the limiting block 17 out of the limiting hole 18, making the operation simpler and less strenuous, and improving the maintenance efficiency of the filter element 13.

[0028] like Figure 2 As shown, a motor 21 is fixedly installed on the surface of the filter box 1, and a rotating rod 22 is rotatably connected inside the filter box 1. A fixing block 23 is fixedly installed on the surface of the rotating rod 22, and a crushing rod 24 is fixedly installed on the surface of the fixing block 23. Here, the motor 21 drives the rotating rod 22 to rotate, and the fixing block 23 on the rotating rod 22 and the crushing rod 24 on the fixing block 23 rotate accordingly, which can crush larger dirt particles entering the filter box 1.

[0029] like Figure 2 As shown, the output end of the motor 21 is fixedly connected to one end of the rotating rod 22. Here, through the fixed connection between the output end of the motor 21 and the rotating rod 22, the power of the motor 21 can be efficiently transmitted to the rotating rod 22, ensuring that the rotating rod 22 rotates stably.

[0030] The usage and working principle of this device are as follows: When using this AB type bar screen filter, sewage first flows into the filter box 1 from the inlet 2 on the side of the filter box 1. The sewage undergoes preliminary filtration through the filter plate 3. Then, the valve 7 on the connecting pipe A5 or connecting pipe B6 is opened, and the pre-filtered sewage flows into the corresponding filter housing A8 or filter housing B9. The sewage undergoes secondary filtration through the filter element 13, thereby achieving the purpose of purifying the sewage. When it is necessary to clean or replace the filter element 13 in the filter housing A8, first close the valve 7 on the connecting pipe A5, and at the same time open the U-shaped pipe 10 and the sewage outlet pipe B11. At this time, the sewage can enter the filter housing B9 through the connecting pipe B6 for filtration, ensuring the continuous operation of the sewage supply system. When disassembling the filter element 13 in the filter housing A8, the operator manually overcomes the tension of the tension spring 20 and pulls the limiting block 17 out of the limiting hole 18 on the inner side of the connecting plate 12 along the guide rod 19. Then, the installation block 14 and sealing ring 15 are removed. The filter element 13 can be removed upwards from the connecting plate 12. After cleaning or replacing the filter element 13, align the filter element 13 with the connecting plate 12 and slide the mounting block 14 downwards to make the mounting block 14 slide into the connecting plate 12. Under the action of the tension spring 20, the limiting block 17 automatically slides into the limiting hole 18. At the same time, the sealing ring 15 fits into the sealing groove 16 on the inner side of the connecting plate 12 to ensure the sealing of the filter housing. In addition, when sewage flows into the filter box 1, the motor 21 installed on the surface of the filter box 1 can be started. The output end of the motor 21 drives the rotating rod 22 to rotate. The fixing block 23 and the crushing rod 24 fixed on the rotating rod 22 also rotate synchronously to crush the larger solid impurities entering the filter box 1. The crushed impurities are easier to filter through the filter plate 3 and the filter element 13. Similarly, when it is necessary to operate the filter element 13 in the filter housing B9, follow the similar steps above, close the valve 7 of the connecting pipe B6, and continue to work using the filter housing A8 to complete the corresponding operation.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An AB-type grid filter device, characterized by Include: The filter box (1), the side of the filter box (1) is provided with a sewage inlet (2), the inside of the filter box (1) is provided with a filter plate (3), the side of the filter box (1) is provided with a sewage outlet pipe A (4), the side of the sewage outlet pipe A (4) is fixedly connected with a communication connecting pipe A (5) and a connecting pipe B (6), the inside of the connecting pipe A (5) and the connecting pipe B (6) is provided with a valve (7), the side of the connecting pipe A (5) is fixedly installed with a filter shell A (8), the side of the connecting pipe B (6) is fixedly installed with a filter shell B (9), the side of the filter shell A (8) and the filter shell B (9) is fixedly connected with a U-shaped pipe (10), the side of the U-shaped pipe (10) is fixedly connected with a sewage outlet pipe B (11), the upper surface of the filter shell A (8) and the filter shell B (9) is fixedly installed with a connecting disc (12), the inside of the filter shell A (8) and the filter shell B (9) is provided with a filter core (13), the surface of the filter core (13) is fixedly installed with a mounting block (14), the side of the mounting block (14) is provided with a sealing ring (15), the inner side of the connecting disc (12) is provided with a sealing groove (16), the inside of the mounting block (14) is slidably connected with a limiting block (17), the inner side of the connecting disc (12) is provided with a limiting hole (18), the inside of the mounting block (14) is fixedly installed with a guide rod (19), the surface of the guide rod (19) is sleeved with a tension spring (20).

2. The AB type lattice filter device according to claim 1, characterized in that: The sealing ring (15) and the sealing groove (16) are embeddedly connected.

3. The AB type lattice filter device according to claim 1, characterized in that: The mounting block (14) and the connecting disc (12) are slidably connected, and the limiting block (17) and the limiting hole (18) are slidably connected.

4. The AB type lattice filter device according to claim 1, characterized in that: The limiting block (17) and the guide rod (19) are slidably connected, and the number of the limiting block (17), the guide rod (19) and the tension spring (20) is two groups.

5. The AB type lattice filter device according to claim 1, characterized in that: One end of the tension spring (20) is fixedly connected with the side of the limiting block (17), and the other end of the tension spring (20) is fixedly connected with the inner side of the mounting block (14).

6. The AB-type lattice filter device of claim 1, wherein: The surface of the filter box (1) is fixedly installed with a motor (21), the inside of the filter box (1) is rotatably connected with a rotating rod (22), the surface of the rotating rod (22) is fixedly installed with a fixed block (23), and the surface of the fixed block (23) is fixedly installed with a smashing rod (24).

7. The AB-type lattice filter device of claim 6, wherein: The output end of the motor (21) is fixedly connected with one end of the rotating rod (22).

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