A washing and filtering all-in-one machine

Abstract

This utility model discloses an integrated washing and filtering machine, including a tank body. An upper sealing cover is hinged to the top of the tank body, and a lower sealing cover that can be raised and lowered is located at the bottom of the tank body. A filter frame and a filter screen are located inside the lower sealing cover. A connecting block is located on the outer wall of the lower sealing cover. A threaded rod, a second motor, and a positioning slide rod are located on a fixing block on the side wall of the tank body to drive the lower sealing cover to rise and fall. A sealing groove is formed on the mating surface between the tank body and the lower sealing cover, and an inflatable sealing ring is provided. A locking assembly is located on the outer side of the tank body, and locking is achieved by driving a wedge block to insert into the wedge groove of the connecting block when the inflatable sealing ring expands. A back-blowing assembly is located inside the lower sealing cover, including a bearing seat, a connecting pipe, an air jet pipe, and a nozzle. This equipment simplifies the maintenance of the filter screen through its lifting structure and linkage locking mechanism, improves cleaning efficiency through the integrated back-blowing function, and solves the problems of inconvenient cleaning and disruption of production continuity caused by traditional equipment.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to an integrated washing and filtration machine. Background Technology

[0002] In industrial production, food processing, and other fields, it is often necessary to wash and filter materials. Washing and filtering integrated machines are widely used because they can integrate the two processes into one device, reducing material transfer steps and improving processing efficiency. However, traditional washing and filtering integrated machines have some problems during use: their bottom filter components are mostly fixed or fastened with simple bolts. During use, the filter screen is easily clogged by materials. Cleaning and maintenance require stopping the machine and using tools to remove a large number of bolts. This process is time-consuming and labor-intensive, affecting production efficiency. Therefore, those skilled in the art provide a washing and filtering integrated machine to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an integrated washing and filtering machine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A washing and filtering integrated machine includes a tank, with an upper sealing cover hinged to the top of the tank, and an agitator rotatably connected through the upper sealing cover. The agitator extends into the interior of the tank, and a first motor for driving the agitator is fixedly installed on the top of the upper sealing cover. The outer wall of the tank is fixedly provided with three fixing blocks at equal intervals, and the bottom of each of the three fixing blocks is fixedly connected to a column. The bottom of the tank is detachably connected to a filter mechanism, which includes a lower sealing cover located at the bottom of the tank. A filter screen frame is fixedly installed inside the lower sealing cover, and a filter screen is installed on the filter screen frame. The outer wall of the lower sealing cover is provided with connecting blocks corresponding to three fixed blocks, and one of the fixed blocks is provided with a drive component for driving the lower sealing cover to move up and down. The bottom of the tank and the top of the lower sealing cover are both provided with sealing grooves. An inflatable sealing ring is provided in the sealing groove. The inflatable sealing ring is connected to an external high-pressure gas source. The outer wall of the tank is provided with locking components for locking the tank and the lower sealing cover when sealing. The locking assembly includes a locking block fixedly connected to the outer wall of the tank and a wedge block slidably disposed in a sliding cavity opened on one side of the locking block.

[0005] As a further embodiment of this utility model, the driving assembly includes a threaded rod, which is rotatably disposed at the bottom of one of the fixed blocks. A second motor for driving the threaded rod is fixedly disposed at the top of the threaded rod. The threaded rod is threaded through one of the connecting blocks, and positioning slide rods are fixedly connected to the bottom of the other two fixed blocks. The two positioning slide rods slide through the corresponding connecting blocks.

[0006] As a further embodiment of this utility model, the locking assembly also includes an arc-shaped block, which is located in the sealing groove on the tank body and abuts against the outer wall of the inflatable sealing ring. A connecting rod is slidably arranged in the sliding cavity. One end of the connecting rod is fixedly connected to one side of the wedge-shaped block, and the other end of the connecting rod slides into the sealing groove on the tank body and is fixedly connected to one side of the arc-shaped block. A wedge-shaped groove corresponding to the wedge-shaped block is opened on the side of the connecting block near the tank body.

[0007] As a further embodiment of this utility model, a limiting slide rod is fixedly sleeved on the connecting rod, and connecting plates are fixedly connected to both sides of the connecting rod inside the sliding cavity. Both connecting plates slide through the limiting slide rod, and springs are sleeved on both connecting plates. The two ends of the two springs abut against one side of the inner wall of the sliding cavity and one side of the limiting slide rod, respectively.

[0008] As a further embodiment of this utility model, the lower sealing cover is provided with a backflushing assembly for cleaning the filter screen. The backflushing assembly includes a bearing seat fixedly installed at the bottom of the lower sealing cover. A connecting pipe is rotatably connected inside the bearing seat. The top of the connecting pipe extends to the bottom of the filter screen and is fixedly connected to an air jet pipe. Multiple nozzles are fixedly connected to the top of the air jet pipe.

[0009] As a further embodiment of this utility model, an installation box is fixedly provided at the bottom of the lower sealing cover. The connecting pipe rotates through the installation box and extends into the interior of the installation box. A third motor is fixedly connected to the bottom of the installation box. Gears are fixedly sleeved on the output end of the third motor and inside the installation box on the connecting pipe. The two gears mesh with each other. The bottom end of the connecting pipe is connected to an external high-pressure air pump through a high-pressure rotary joint.

[0010] As a further embodiment of this utility model, an arc-shaped guide plate is fixedly installed inside the lower sealing cover below the filter screen frame. The guide plate is inclined. A drain pipe is fixedly installed at the bottom of the lower sealing cover, and the drain pipe passes through the guide plate and is connected to the inside of the lower sealing cover. The bearing seat seal passes through the guide plate and extends above the guide plate.

[0011] As a further embodiment of this utility model, the upper sealing cover is sequentially connected to a feed pipe, an air inlet pipe, and a water inlet pipe, and the tank body is fixedly connected to a discharge pipe. Both the drain pipe and the discharge pipe are equipped with electric valves.

[0012] The beneficial effects of this utility model are as follows: 1. The bottom filter mechanism can be raised and lowered as a whole and integrates a rotating backflushing component. After the lower sealing cover is lowered, the filter screen can be fully exposed, which is convenient for thorough cleaning or replacement. High-pressure gas blows back from the bottom of the filter screen through the rotating jet head, which can effectively remove blockages, greatly reduce maintenance time, improve production efficiency, and avoid cross-contamination between different batches of materials.

[0013] 2. Through the linkage design of air-filled sealing and wedge locking, while the air-filled sealing ring expands to achieve sealing, the automatic mechanical locking mechanism securely locks the lower sealing cover. This structure uses the sealing pressure as the locking power, eliminating the need for an independent locking drive source, simplifying the device, ensuring the reliability of the seal, making the equipment more pressure-bearing and safer to operate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a washing and filtering integrated machine proposed in this utility model; Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the tank of a washing and filtering integrated machine proposed in this utility model. Figure 3 This is a partial cross-sectional three-dimensional structural schematic diagram of the locking block of a washing and filtering integrated machine proposed in this utility model; Figure 4 This is a partially exploded three-dimensional structural diagram of the lower sealing cover of a washing and filtering integrated machine proposed in this utility model; Figure 5 This is a partial exploded three-dimensional structural diagram of the other lower sealing cover of a washing and filtering integrated machine proposed in this utility model.

[0015] In the diagram: 1. Tank body; 2. Upper sealing cover; 3. Lower sealing cover; 4. Column; 5. Agitator; 6. First motor; 7. Inflatable sealing ring; 8. Filter frame; 9. Filter screen; 10. Connecting block; 11. Threaded rod; 12. Second motor; 13. Positioning slide rod; 14. Locking block; 15. Wedge block; 16. Arc block; 17. Connecting rod; 18. Connecting plate; 19. Limiting slide rod; 20. Spring; 21. Bearing seat; 22. Connecting pipe; 23. Jet pipe; 24. Guide plate; 25. Third motor; 26. Gear. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. It should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection", and "setting" should be interpreted broadly. For those skilled in the art, the specific meaning of the above terms in this patent can be understood according to the specific circumstances.

[0017] Reference Figures 1-5 A washing and filtering integrated machine includes a tank 1, which serves as the core load-bearing component. An upper sealing cover 2 is hinged to the top of the tank 1, allowing it to rotate around the hinge for opening and closing. Operators can add materials to the tank 1 by opening the upper sealing cover 2, and it can also be used for inspection and maintenance of the internal components of the tank 1 during equipment maintenance. A stirring paddle 5 is rotatably connected through the upper sealing cover 2, with one end extending into the interior of the tank 1. A first motor 6 is fixedly mounted on the top of the upper sealing cover 2, and its output end is fixedly connected to the top of the stirring paddle 5. When it is necessary to stir the materials in the tank 1, the first motor 6 is activated. The output shaft of the first motor 6 drives the stirring paddle 5 to rotate within the tank 1. During rotation, the stirring paddle 5 stirs the materials in the tank 1, ensuring thorough mixing between the materials and the washing medium, breaking up material agglomerations, and ensuring that all parts of the materials come into contact with the washing medium, thus improving washing uniformity.

[0018] The upper sealing cover 2 is also sequentially connected to a feed pipe, an air inlet pipe, and a water inlet pipe. The feed pipe is used to transport the material to be processed into the tank 1, while the air inlet pipe can introduce gas or steam into the tank 1. This serves two purposes: firstly, it can regulate the pressure and temperature inside the tank 1, preparing for subsequent pressurized filtration or heated washing processes; secondly, introducing gas during the washing stage can help the material and washing medium mix better. A discharge pipe is fixedly connected to the outer wall of the tank 1. The discharge pipe is used to discharge the material after washing, and an electric valve is installed on the discharge pipe. By controlling the opening and closing of the electric valve, the timing and speed of material discharge can be flexibly controlled.

[0019] Three fixing blocks are fixed at equal intervals on the outer wall of the tank body 1. Each of the three fixing blocks has a column 4 fixedly connected to its bottom. The three columns 4 are arranged in a triangle, providing stable support for the entire washing and filtering integrated machine, ensuring that the equipment will not tilt or shake during operation, and guaranteeing the stability and safety of the equipment. A detachable filtration mechanism is connected to the bottom of the tank body 1. This filtration mechanism is mainly used for solid-liquid separation of the washed material. It includes a lower sealing cover 3 located at the bottom of the tank body 1. A filter screen frame 8 is fixedly installed inside the lower sealing cover 3, and a filter screen 9 is installed on the filter screen frame 8. The filter screen 9 is used to intercept solid impurities in the material, allowing the liquid portion to enter the lower sealing cover 3 through the pores of the filter screen 9, thus achieving solid-liquid separation.

[0020] Three connecting blocks 10 are fixed on the outer wall of the lower sealing cover 3. Each connecting block 10 corresponds to one of the three fixed blocks on the outer wall of the tank body 1. One of the fixed blocks is equipped with a driving assembly, which drives the lower sealing cover 3 to move up and down, thereby connecting and separating the lower sealing cover 3 from the tank body 1. The driving assembly includes a threaded rod 11, which is rotatably mounted on the bottom of the corresponding fixed block. A second motor 12 is fixedly mounted on the top of the fixed block, and the output end of the second motor 12 is fixedly connected to the top of the threaded rod 11. The threaded rod 11 is threaded through the corresponding connecting block 10. Positioning slide rods 13 are fixedly connected to the bottom of the other two fixed blocks, and these two positioning slide rods 13 slide through the corresponding connecting blocks 10. When the lower sealing cover 3 needs to be moved, the second motor 12 is activated, causing the threaded rod 11 to rotate. The threaded rod 11 engages with the corresponding connecting block 10, while the two positioning slide rods 13 guide the connecting block 10, preventing it from rotating during movement, thus ensuring the lower sealing cover 3 rises or falls smoothly. When the lower sealing cover 3 descends to completely separate from the tank body 1, the filter screen 9 can be fully exposed, making it easy for operators to thoroughly clean or replace the filter screen 9. At the same time, the inner cavity of the lower sealing cover 3 can be thoroughly cleaned, reducing cross-contamination between different batches of materials.

[0021] Both the bottom of the tank body 1 and the top of the lower sealing cover 3 are provided with sealing grooves. An inflatable sealing ring 7 is installed in the sealing groove and is connected to an external high-pressure gas source. When it is necessary to seal the lower sealing cover 3 with the tank body 1, the lower sealing cover 3 is first driven by the drive assembly to rise and press against the bottom of the tank body 1. Then, the external high-pressure gas source introduces gas into the inflatable sealing ring 7, and the inflatable sealing ring 7 gradually expands until it is tightly fitted against the inner wall of the sealing groove at the bottom of the tank body 1 and the top of the lower sealing cover 3, thus achieving a preliminary seal between the tank body 1 and the lower sealing cover 3. The expanded sealing ring can fill the tiny gaps in the sealing groove, preventing subsequent material leakage and ensuring the reliability of the seal.

[0022] On the outer wall of the tank body 1, below the three fixing blocks, locking components are provided. These components are used to lock the tank body 1 and the lower sealing cover 3 during sealing, improving connection stability. Each locking component includes a locking block 14 fixedly connected to the outer wall of the tank body 1. A sliding cavity is provided on one side of the locking block 14, within which a wedge block 15 is slidably installed. The locking component also includes an arc-shaped block 16, located within a sealing groove at the bottom of the tank body 1 and abutting against the outer wall of the inflatable sealing ring 7. A connecting rod 17 is also slidably installed within the sliding cavity. One end of the connecting rod 17 is fixedly connected to one side of the wedge block 15, and the other end extends slidably into the sealing groove at the bottom of the tank body 1 and is fixedly connected to one side of the arc-shaped block 16. A wedge-shaped groove corresponding to the wedge block 15 is provided on the side of the connecting block 10 closest to the tank body 1. When the inflatable sealing ring 7 inflates, its outer wall compresses the arc-shaped block 16. Under this pressure, the arc-shaped block 16 pushes the connecting rod 17 to slide within the sliding cavity of the locking block 14. The connecting rod 17 then drives the wedge block 15 to move synchronously until the wedge block 15 inserts into the corresponding wedge groove on the connecting block 10, thus completing the locking of the tank body 1 and the lower sealing cover 3. This linkage design, combining inflatable sealing and wedge locking, utilizes sealing pressure as the locking power, eliminating the need for a separate locking drive source, simplifying the device, ensuring sealing reliability, enhancing the equipment's pressure resistance, and improving operational safety.

[0023] A limiting slide rod 19 is fixedly sleeved on the connecting rod 17. Connecting plates 18 are fixedly connected to both sides of the sliding cavity on both sides of the connecting rod 17. Both connecting plates 18 slide through the limiting slide rod 19. Springs 20 are sleeved on both connecting plates 18, with their ends abutting against one side of the inner wall of the sliding cavity and one side of the limiting slide rod 19, respectively. When it is necessary to release the lock between the tank 1 and the lower sealing cover 3, the gas inside the inflatable sealing ring 7 is released through the control system. The inflatable sealing ring 7 gradually contracts, losing its compressive force on the arc-shaped block 16. At this time, under the elastic force of the spring 20, the limiting slide rod 19 drives the connecting rod 17 to move away from the connecting block 10. The connecting rod 17 pulls the wedge block 15 out of the wedge groove, thus releasing the lock between the tank 1 and the lower sealing cover 3.

[0024] The lower sealing cover 3 is equipped with a backflushing assembly for cleaning the filter screen 9, preventing it from becoming clogged due to excessive solid impurities and affecting the filtration effect. The backflushing assembly includes a bearing seat 21 fixedly mounted at the bottom of the lower sealing cover 3. A connecting pipe 22 is rotatably connected inside the bearing seat 21. The top of the connecting pipe 22 extends below the filter screen 9 and is fixedly connected to an air jet pipe 23. Multiple nozzles are fixedly connected to the top of the air jet pipe 23. A mounting box is fixedly mounted at the bottom of the lower sealing cover 3. The connecting pipe 22 rotatably passes through the mounting box and extends into its interior. A third motor 25 is fixedly connected to the bottom of the mounting box. Gears 26 are fixedly fitted onto the output end of the third motor 25 and the portion of the connecting pipe 22 located inside the mounting box. The two gears 26 mesh with each other. The bottom end of the connecting pipe 22 is connected to an external high-pressure air pump via a high-pressure rotary joint. When filter screen 9 needs cleaning, the third motor 25 is started. The output shaft of the third motor 25 drives the gear 26 at its end to rotate. Through the meshing transmission of the two gears 26, the connecting pipe 22 rotates within the bearing seat 21. At the same time, an external high-pressure air pump introduces high-pressure gas into the connecting pipe 22 through a high-pressure rotary joint. The high-pressure gas enters the jet pipe 23 through the connecting pipe 22, and then is sprayed out from multiple nozzles at the top of the jet pipe 23, acting on the bottom of filter screen 9. During the rotation of the connecting pipe 22, the jet pipe 23 can blow air onto different areas of filter screen 9, achieving a comprehensive cleaning of filter screen 9, reducing impurity residue, restoring the filtration capacity of filter screen 9, significantly reducing maintenance time, and improving equipment utilization and production efficiency.

[0025] An arc-shaped guide plate 24 is fixedly installed inside the lower sealing cover 3, below the filter frame 8. The guide plate 24 is inclined. A drain pipe is fixedly installed at the bottom of the lower sealing cover 3, passing through the guide plate 24 and connecting to the interior of the lower sealing cover 3. An electric valve is installed on the drain pipe. When it is necessary to discharge the filtered liquid, the electric valve on the drain pipe is opened. The liquid inside the lower sealing cover 3 flows along the inclined guide plate 24 to the drain pipe and is finally discharged from the equipment through the drain pipe. The inclined guide plate 24 can guide the liquid to flow quickly, reduce the liquid residue in the lower sealing cover 3, and reduce the difficulty of subsequent cleaning.

[0026] Working principle: First, the second motor 12 drives the threaded rod 11 to rotate, causing the lower sealing cover 3 to rise and press against the bottom of the tank body 1. Then, an external high-pressure gas source introduces gas into the inflatable sealing ring 7 at the bottom of the lower sealing cover 3 and the tank body 1. The inflatable sealing ring 7 gradually expands until it is tightly fitted against the inner wall of the sealing groove of the bottom of the tank body 1 and the lower sealing cover 3, achieving a preliminary seal between the tank body 1 and the lower sealing cover 3. The expanded sealing ring can fill the tiny gaps in the sealing groove, preventing subsequent material leakage and ensuring sealing reliability. At the same time, as the inflatable sealing ring 7 continues to expand, its outer wall will squeeze the arc-shaped block 16 in the sealing groove. After being subjected to force, the arc-shaped block 16 pushes the connecting rod 17 to slide in the sliding cavity of the locking block 14. The connecting rod 17 drives the wedge block 15 to move synchronously until the wedge block 15 is inserted into the corresponding wedge groove on the connecting block 10, completing the locking of the tank body 1 and the lower sealing cover 3. Sealing and locking can be achieved simultaneously without additional operation, simplifying the operation process and improving equipment preparation efficiency. After sealing and locking, the feed valve is opened, and the material enters the tank 1 through the feed pipe. The first motor 6 is started, and the output shaft of the first motor 6 drives the stirring paddle 5 to rotate inside the tank 1. During the rotation of the stirring paddle 5, the material in the tank 1 is stirred, so that the material and the washing medium in the tank 1 are fully mixed. The rotation of the stirring paddle 5 can break the agglomeration of the material and ensure that all parts of the material can contact the washing medium, thereby improving the washing uniformity. If it is necessary to add washing water during the washing process, it can be injected into the tank 1 through the water washing pipe on the upper sealing cover 2. At the same time, gas can be introduced into the tank 1 through the air inlet pipe to adjust the air pressure inside the tank 1 and prepare for subsequent pressure filtration. After the material is washed, gas is continued to be introduced into the tank 1 through the air inlet pipe to increase the air pressure inside the tank 1. Under the action of air pressure, the material inside the tank 1 is subjected to downward pressure and accelerates its flow to the bottom of the tank 1. Pressurization can increase the speed at which the material passes through the filter screen 9, shorten the filtration time, and improve the filtration efficiency. During the downward flow of the material, it passes through the filter screen 9 on the filter screen 9 frame 8. The filter screen 9 intercepts solid impurities in the material, allowing the liquid part to enter the lower sealing cover 3 through the pores of the filter screen 9. When it is necessary to discharge the filtered liquid, the electric valve on the drain pipe at the bottom of the lower sealing cover 3 is opened. The liquid inside the lower sealing cover 3 flows along the inclined guide plate 24 to the drain pipe and is finally discharged from the equipment through the drain pipe. The inclined guide plate 24 can guide the liquid to flow quickly, reduce the liquid residue in the lower sealing cover 3, and reduce the difficulty of subsequent cleaning. After the filter screen 9 has been used for a period of time, a lot of solid impurities will adhere to its surface, causing blockage. At this time, the third motor 25 can be started. The output shaft of the third motor 25 drives the gear 26 at its end to rotate. Through the meshing transmission of the two gears 26, the connecting pipe 22 is driven to rotate in the bearing seat 21. At the same time, the external high-pressure air pump introduces high-pressure gas into the connecting pipe 22 through the high-pressure rotary joint. The high-pressure gas enters each jet pipe 23 through the connecting pipe 22 and is sprayed out from the high-pressure nozzle at the top of the jet pipe 23 and acts on the bottom of the filter screen 9. During the rotation of the connecting pipe 22, the jet pipe 23 can blow air on different areas of the filter screen 9 to achieve a comprehensive cleaning of the filter screen 9, reduce the residue of impurities, and restore the filtering capacity of the filter screen 9. If a thorough cleaning of the interior of the lower sealing cover 3 and the filter screen 9 is required, first release the gas in the inflatable sealing ring 7 through the control system. The inflatable sealing ring 7 gradually contracts, losing its squeezing force on the arc-shaped block 16. Under the elastic force of the spring 20, the limiting slide rod 19 drives the connecting rod 17 to move away from the connecting block 10. The connecting rod 17 pulls the wedge block 15 out of the wedge groove, releasing the lock between the tank body 1 and the lower sealing cover 3. Then, the second motor 12 is started, which drives the threaded rod 11 to rotate. The threaded rod 11 engages with the corresponding connecting block 10. At the same time, the other two positioning slide rods 13 guide the connecting block 10, causing the connecting block 10 to slowly move the lower sealing cover 3 downward until the lower sealing cover 3 is completely separated from the tank body 1. The operator can then directly flush the exposed filter screen 9 with high-pressure water or replace it entirely, or thoroughly clean the interior of the lower sealing cover 3.

[0027] In this application, the structures and connections not described in detail are all prior art, and their structures and principles are well known, so they will not be described in detail here.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A washing and filtering integrated machine, comprising a tank (1), characterized in that, The top of the tank (1) is hinged with an upper sealing cover (2), and a stirring paddle (5) is rotatably connected through the upper sealing cover (2). The stirring paddle (5) extends into the interior of the tank (1), and a first motor (6) for driving the stirring paddle (5) is fixedly installed on the top of the upper sealing cover (2). The outer wall of the tank (1) is fixedly provided with three fixed blocks at equal intervals, and the bottom of each of the three fixed blocks is fixedly connected with a column (4). The bottom of the tank (1) is detachably connected to a filter mechanism, which includes a lower sealing cover (3) located at the bottom of the tank (1). A filter screen frame (8) is fixedly installed inside the lower sealing cover (3), and a filter screen (9) is installed on the filter screen frame (8). A connecting block (10) corresponding to three fixed blocks is installed on the outer wall of the lower sealing cover (3), and a drive component for driving the lower sealing cover (3) to move up and down is installed on one of the fixed blocks. The bottom of the tank (1) and the top of the lower sealing cover (3) are both provided with sealing grooves. An inflatable sealing ring (7) is provided in the sealing groove. The inflatable sealing ring (7) is connected to an external high-pressure gas source. The outer wall of the tank (1) is provided with locking components for locking the tank (1) and the lower sealing cover (3) when sealing. The locking assembly includes a locking block (14) fixedly connected to the outer wall of the tank (1) and a wedge block (15) slidably disposed in a sliding cavity opened on one side of the locking block (14).

2. The washing and filtering integrated machine according to claim 1, characterized in that, The drive assembly includes a threaded rod (11), which is rotatably mounted at the bottom of one of the fixed blocks. A second motor (12) for driving the threaded rod (11) is fixedly mounted at the top of the threaded rod (11). The threaded rod (11) is threaded through one of the connecting blocks (10). The bottoms of the other two fixed blocks are fixedly connected to positioning slide rods (13), and the two positioning slide rods (13) slide through the corresponding connecting blocks (10).

3. The washing and filtering integrated machine according to claim 1, characterized in that, The locking assembly also includes an arc-shaped block (16), which is located in the sealing groove on the tank body (1) and abuts against the outer wall of the inflatable sealing ring (7). A connecting rod (17) is slidably arranged in the sliding cavity. One end of the connecting rod (17) is fixedly connected to one side of the wedge block (15), and the other end of the connecting rod (17) slides into the sealing groove on the tank body (1) and is fixedly connected to one side of the arc-shaped block (16). The connecting block (10) has a wedge-shaped groove corresponding to the wedge block (15) on the side near the tank body (1).

4. The washing and filtering integrated machine according to claim 3, characterized in that, A limiting slide rod (19) is fixedly sleeved on the connecting rod (17). A connecting plate (18) is fixedly connected to both sides of the connecting rod (17) inside the sliding cavity. Both connecting plates (18) slide through the limiting slide rod (19). A spring (20) is sleeved on both connecting plates (18). The two ends of the two springs (20) abut against one side of the inner wall of the sliding cavity and one side of the limiting slide rod (19), respectively.

5. A washing and filtering integrated machine according to claim 1, characterized in that, The lower sealing cover (3) is provided with a back-blowing assembly for cleaning the filter screen (9). The back-blowing assembly includes a bearing seat (21) fixedly installed at the bottom of the lower sealing cover (3). A connecting pipe (22) is rotatably connected inside the bearing seat (21). The top of the connecting pipe (22) extends to the bottom of the filter screen (9) and is fixedly connected to an air jet pipe (23). The top of the air jet pipe (23) is fixedly connected to multiple nozzles.

6. A washing and filtering integrated machine according to claim 5, characterized in that, The bottom of the lower sealing cover (3) is fixedly provided with an installation box. The connecting pipe (22) rotates through the installation box and extends into the interior of the installation box. The bottom of the installation box is fixedly connected to a third motor (25). The output end of the third motor (25) and the connecting pipe (22) are both fixedly fitted with gears (26) inside the installation box. The two gears (26) mesh with each other. The bottom end of the connecting pipe (22) is connected to an external high-pressure air pump through a high-pressure rotary joint.

7. A washing and filtering integrated machine according to claim 6, characterized in that, An arc-shaped guide plate (24) is fixedly installed inside the lower sealing cover (3) below the filter frame (8). The guide plate (24) is inclined. A drain pipe is fixedly installed at the bottom of the lower sealing cover (3). The drain pipe passes through the guide plate (24) and is connected to the inside of the lower sealing cover (3). The bearing seat (21) seals through the guide plate (24) and extends to the top of the guide plate (24).

8. A washing and filtering integrated machine according to claim 7, characterized in that, The upper sealing cover (2) is sequentially connected to a feed pipe, an air inlet pipe, and a water inlet pipe. The tank body (1) is connected to a discharge pipe. Both the drain pipe and the discharge pipe are equipped with electric valves.

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