Water intake filtering device for rural water supply

Abstract

The present application relates to the field of water treatment, and particularly relates to a water intake filtering device for rural water supply, comprising a water intake pipe, a filtering head for filtering water entering the water intake pipe being connected to the lower end of the water intake pipe; in the process of drawing water, the impeller, the connecting conduit and the stirring blade are driven to rotate to generate centrifugal force, the floating impurities below the filter screen and the grid plate are pushed away from the middle of the grid plate, the problem of impurities accumulating on the surface of the filter screen is effectively avoided, the filter screen plate and the grid plate are prevented from being blocked by large-particle impurities, the service life of the filter screen plate is prolonged, and the frequency of cleaning and replacing the filter screen plate is reduced.

Description

A water intake filtration device for rural water supply Technical Field

[0001] This invention relates to the field of water treatment, and in particular to a water intake filtration device for rural water supply. Background Technology

[0002] In rural water supply systems, due to geographical limitations and economic development levels, water sources may be remote or have poor water quality. Water is usually drawn from centralized sources, but because these sources often lack adequate protection mechanisms, and residents frequently move around near the water sources, the water that people can directly use often contains a lot of impurities such as silt, algae, and floating matter. Therefore, water taken from these sources usually needs to be filtered before it can be used.

[0003] However, ordinary water intake filtration methods often have some problems in daily use. With the development of technology, technicians in related fields have also made a lot of optimizations to the filtration methods used for water intakes. For a more accurate comparison, Chinese patent with publication number CN217895275U discloses a rural drinking water filtration system, including a well, filter screen, slide bar, float, ear ring, and filter head. In use, through the coordinated arrangement of the slide bar, float, ear ring, and filter head, the filter head is kept floating in the well water under the buoyancy of the float bar, thus effectively avoiding the problem of the filtration equipment being easily buried by the silt of the collapsed well wall, which would affect the filtration quality and ensure the quality of drinking water.

[0004] However, the above-mentioned filtering methods still have some shortcomings in practical use:

[0005] 1. Before using the above device, an installation plate, sliding rod, ground nail, and filter screen need to be installed at the bottom of the water intake (well). During use, the user drives the float to move the ear ring, water pipe, and filter head to float on the water surface, and then draws water from the water pipe to achieve the effect of filtering water. However, during use, because the ear ring, filter head, and water pipe are always moved along the sliding rod by the float to float on the water surface, the installation plate, sliding rod, ground nail, and filter screen set at the bottom of the water intake are always submerged in the water. After long-term use, when maintenance and replacement of the facilities set at the bottom of the water are required, it is difficult for the user to quickly and effectively complete the maintenance and replacement procedures.

[0006] 2. When using the above device, the filter and float need to be submerged in water, and the filter head and float should remain submerged in water after water intake is completed. After long-term use, floating impurities in the water intake (well) will adhere to the outer surface of the filter head and float to a certain extent. If not removed in time, the accumulation of floating impurities will block the water inlet of the filter head and affect the subsequent water intake quality.

[0007] Therefore, based on the above-mentioned viewpoints, there is still room for improvement in existing methods of filtration at water intakes. Summary of the Invention

[0008] To address the aforementioned problems, the present invention provides a water intake filtration device for rural water supply, comprising a water intake pipe, wherein the lower end of the water intake pipe is connected to a filter head for filtering the water entering the water intake pipe.

[0009] The filter head includes a connecting sleeve fitted onto the water intake pipe, a water storage cylinder fitted onto the connecting sleeve, and a collection sleeve detachably installed at the lower end of the water storage cylinder. A filter box, a filter screen, and a grid plate are sequentially connected to the lower sides of the connecting sleeve, the water storage cylinder, and the collection sleeve. Through the cooperation between the filter box, the filter screen, and the grid plate, a multi-stage filtration effect is achieved for the water entering the water intake pipe.

[0010] Preferably, a float plate is fitted on the connecting sleeve above the water storage tank to provide the necessary buoyancy for the whole, so as to prevent the filter head and water intake pipe from sinking too deep into the water.

[0011] Preferably, the inner walls of the water storage cylinder are connected by a partition cylinder. The partition cylinder, water storage cylinder, collection sleeve and connecting sleeve are coaxially connected to a connecting conduit that communicates with the water intake pipe. The connecting conduit has several water inlet channels evenly formed around its circumference. The connecting conduit passes through the filter box and the filter screen in sequence. The connecting conduit is also fitted with an impeller located between the filter box and the several water inlet channels. Several agitating blades located between the filter screen and the grid plate are also evenly connected around the connecting conduit.

[0012] Preferably, a receiving space is formed between the partition cylinder and the water storage cylinder, and a plurality of permeable holes for connecting the partition cylinder and the water storage cylinder are uniformly formed on the upper circumference of the partition cylinder.

[0013] Preferably, the connecting sleeve is fitted with an installation ring plate that is connected to the partition cylinder, and a plurality of drainage pipes with bent structures are passed through the installation ring plate and the partition cylinder.

[0014] Preferably, the separator cylinder is further limited by a sliding frame, and the sliding frame is connected to a plurality of limiting guide blocks, each of which corresponds to a plurality of drainage pipes. A connecting push rod and a driven block are sequentially arranged on the limiting guide blocks.

[0015] Preferably, the sliding frame is inserted into the partition cylinder via several connecting slides, and several sliding grooves are formed on the partition cylinder corresponding to the connecting slides.

[0016] Preferably, the limiting guide block has a certain weight, and the driven block is made of a material with a certain degree of flexible deformation capability.

[0017] Preferably, the driven block is configured with a conical structure.

[0018] Preferably, the collecting sleeve is provided with several baffles evenly distributed circumferentially.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] I. This invention generates centrifugal force by driving the impeller, connecting pipe and stirring blade to rotate during the water extraction process. This pushes the floating impurities below the filter screen and grid plate away from the center of the grid plate, effectively avoiding the problem of impurities accumulating on the surface of the filter screen, preventing the filter screen and grid plate from being blocked by large particles of impurities, extending the service life of the filter screen plate, and reducing the frequency of cleaning and replacing the filter screen plate.

[0021] Second, by setting up a receiving space between the dividing cylinder and the water storage cylinder, after water intake is completed, it is only necessary to control the water intake pipe to move upward to drive the filter head and float plate to detach from the water surface. The water in the receiving space can then be guided out through the drainage pipe, causing it to impact the filter screen and grid plate, washing away the smaller impurities adhering to the filter screen and achieving an automatic cleaning function. This further avoids the problem of clogging of the filter screen and grid plate and extends the service life of the filter screen. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 is a schematic diagram of the structure of the present invention.

[0024] Figure 2 is a schematic diagram of the structure of the filter head of the present invention.

[0025] Figure 3 is a schematic diagram of the structure of the separator cylinder of the present invention.

[0026] Figure 4 is a schematic diagram of the drainage tube of the present invention.

[0027] Figure 5 is a schematic diagram of the sliding frame of the present invention.

[0028] Figure 6 is a schematic diagram of the structure of the extension sleeve of the present invention.

[0029] Figure 7 is a schematic diagram of the structure of the stirring blade of the present invention.

[0030] Figure 8 is a schematic diagram of the structure of the baffle of the present invention.

[0031] In the diagram, 1 is the water intake pipe; 2 is the filter head; 20 is the connecting sleeve; 21 is the water storage tank; 22 is the collecting sleeve; 220 is the baffle; 23 is the filter box; 24 is the filter screen; 25 is the grating plate; 3 is the float plate; 4 is the separator; 40 is the connecting guide tube; 41 is the water inlet channel; 42 is the impeller; 43 is the agitator blade; 44 is the water permeable hole; 45 is the mounting ring plate; 450 is the drain pipe; 451 is the extension sleeve; 46 is the sliding frame; 460 is the limiting guide block; 461 is the connecting push rod; 462 is the driven block; and 463 is the connecting slide bar. Detailed Implementation

[0032] The embodiments of the present invention will be described in detail below with reference to Figures 1 to 8.

[0033] This application discloses a water intake filtration device for rural water supply. The device is mainly used for filtering water at rural water intakes, achieving the effect of filtering water obtained from the intake. Specifically, during water intake, the interaction between the filter box, filter screen, and grid plate achieves multi-stage filtration of the water entering the intake pipe. Furthermore, the device utilizes the connecting conduit and rotating agitator blades within the water storage tank, along with the water flow guided by the drainage pipe, to achieve self-cleaning of the filter screen and grid plate after water intake is completed.

[0034] Referring to Figure 1, a water intake filtration device for rural water supply includes a water intake pipe 1 and a filter head 2. The end of the water intake pipe 1 away from the filter head 2 is connected to a water pump to provide suction force for drawing water from the water intake. The lower end of the water intake pipe 1 is connected to a filter head 2 for filtering the water entering the water intake pipe 1.

[0035] When in use, insert the water intake pipe 1 and the filter head 2 into the water intake port, then start the water pump to extract the water entering the water intake pipe 1. During the extraction process, the water entering the pipe is filtered through the filter head 2, thus completing the water intake and filtration process at the water intake port.

[0036] Referring to Figures 1 to 3, the filter head 2 is used to filter the water entering the water intake pipe 1. Specifically, the filter head 2 includes a connecting sleeve 20, a water storage cylinder 21, a collecting sleeve 22, a filter box 23, a filter screen 24, and a grid plate 25. The connecting sleeve 20 is sleeved on the water intake pipe 1, and the water storage cylinder 21 located below the water intake pipe 1 is also sleeved on the connecting sleeve 20. The collecting sleeve 22 is detachably installed at the lower end of the water storage cylinder 21. The filter box is sequentially connected to the lower sides of the connecting sleeve 20, the water storage cylinder 21, and the collecting sleeve 22. 23. Filter screen 24 and grid plate 25. The grid plate 25 is used to screen out large impurities floating on the water surface. The pore size of the filter screen 24 is smaller than that of the grid plate 25 to further filter the water entering the water storage tank 21. The filter box 23 is filled with a number of activated carbon to form an activated carbon adsorption layer to further filter the water entering the water intake pipe 1. Through the cooperation between the filter box 23, filter screen 24 and grid plate 25, a multi-level filtration effect is achieved for the water entering the water intake pipe 1.

[0037] In use, the connecting sleeve 20, water storage cylinder 21, collecting sleeve 22, filter box 23, filter screen 24, and grid plate 25 are inserted into the water inlet and come into contact with water. The water then sequentially soaks through the activated carbon adsorption layer in the grid plate 25, filter screen 24, and filter box 23 to the lower side of the water inlet pipe 1.

[0038] At this point, large suspended solids such as leaves and branches are effectively removed from the water by the grating plate 25 to prevent them from entering the subsequent filtration stage. Then, smaller particles such as silt and algae are further filtered out by the filter screen plate 24. Next, the activated carbon adsorption layer adsorbs organic pollutants, heavy metal ions, and tiny impurities such as odors and pigments in the water.

[0039] The interaction between the filter box 23, filter screen 24 and grid plate 25 ensures that the drinking water entering the water intake pipe 1 is effectively purified, thus achieving a multi-stage filtration effect in the water intake pipe 1. Then, the water pump is activated to extract water from the water intake pipe 1 and the water storage tank 21, thus achieving the effect of taking the filtered water for use.

[0040] Referring to Figures 1 to 3, a float plate 3 is fitted on the upper side of the water storage cylinder 21 on the connecting sleeve 20 to provide the required buoyancy for the whole, so as to prevent the filter head 2 and the water intake pipe 1 from sinking too deep into the water.

[0041] In use, after the section of the water intake pipe 1 furthest from the water pump and the filter head 2 are inserted into the water intake, the filter head 2 and the water intake pipe 1 are submerged in the water due to the downward influence of their overall weight. At this time, the buoyancy of the float plate 3 in the water and the connected water intake pipe 1 are used to align the position of the filter head 2 and the water intake pipe 1, while preventing the filter head 2 from going too deep into the water and coming into contact with the silt or sand at the bottom. This allows the filter head 2 and the float plate 3 to float on the water surface, preventing silt and sand from entering the water storage tank 21 and causing blockage of the filter screen plate 24 and the grid plate 25.

[0042] Further, referring to Figures 2 to 4, the inner walls of the water storage cylinder 21 are connected by a partition cylinder 4. The partition cylinder 4, the water storage cylinder 21, the collecting sleeve 22 and the connecting sleeve 20 are coaxially connected by a connecting conduit 40 that communicates with the water intake pipe 1. The connecting conduit 40 has several water inlet channels 41 evenly formed circumferentially. The connecting conduit 40 rotates and passes through the filter box 23 and the filter screen plate 24 in sequence. The connecting conduit 40 is also fitted with an impeller 42 located between the filter box 23 and the several water inlet channels 41. Several stirring blades 43 located between the filter screen plate 24 and the grid plate 25 are also evenly connected circumferentially on the connecting conduit 40.

[0043] When in use, when the water pump is activated, the water in the connecting sleeve 20 is drawn upward along the inner wall of the connecting sleeve 20 by the suction force generated by the water pump and is drawn into the water intake pipe 1 through the water inlet channel 41 on the connecting conduit 40. When the water in the connecting sleeve 20 flows upward and passes through the impeller 42, the upward kinetic energy and pressure energy of the water are converted into the mechanical energy of the impeller 42, which drives the impeller 42 and the connecting conduit 40 to rotate. The rotation of the connecting conduit 40 drives all the stirring blades 43 to rotate, so that several stirring blades 43 push the water under the filter screen plate 24 and the grid plate 25 to make a circular motion, thereby applying a centrifugal force to the floating objects in the water under the grid plate 25 in the direction away from the center of the grid plate 25, so as to prevent the floating impurities in the water from entering the collecting sleeve 22 and the water storage tank 21.

[0044] Referring to Figures 3 and 4, a receiving space is formed between the partition cylinder 4 and the water storage cylinder 21. Several permeable holes 44 are uniformly formed circumferentially on the upper side of the partition cylinder 4 to connect the partition cylinder 4 and the water storage cylinder 21. In use, water filtered by the grid plate 25 and the filter screen 24 is submerged in the water storage cylinder 21 up to the height of the permeable holes 44 on the partition cylinder 4. Part of the water continues to rise through the filter box 23 and is then pumped out by the water pump. The other part enters the receiving space between the partition cylinder 4 and the water storage cylinder 21 through the permeable holes 44 and is temporarily stored until the receiving space is full of water.

[0045] Referring to Figures 3 and 4, a mounting ring plate 45 connected to the partition cylinder 4 is fitted on the connecting sleeve 20. Several drainage pipes 450 with bent structures are passed through the mounting ring plate 45 and the partition cylinder 4. The bent sections of the mounting ring plate 45 and the drainage pipes 450 are located above the water permeable hole 44. The drainage pipes 450 are bent inverted "U" shaped pipe structures, and the lengths of the two vertical sections are not the same. The longer section of the drainage pipe 450 is inserted into the receiving space and close to the bottom of the receiving space (not attached to the inner bottom wall of the water storage cylinder 21), while the shorter section of the drainage pipe 450 passes through the receiving space. The outer side of the shorter section of the drainage pipe 450 is also slidably fitted with an extension sleeve 451 located below the mounting ring plate 45.

[0046] It should be noted that, in order to facilitate the drainage of water in the containment space, the height of the inner bottom wall of the containment space is higher than the height of the lower end of the partition cylinder 4. At the same time, after the extension sleeve 451 is fully extended along the shorter section of the drainage pipe 450, the overall length of the extension sleeve 451 and the shorter section of the drainage pipe 450 is greater than the length of the longer section of the drainage pipe 450 (that is, after the extension sleeve 451 slides and extends, the height of its lowest point is lower than the height of the longer section of the drainage pipe 450).

[0047] When it is necessary to remove the water intake pipe 1 and filter head 2 from the water inlet, pull the water intake pipe 1 upwards. The upward movement of the water intake pipe 1 causes the water storage cylinder 21, the separator cylinder 4, the collecting sleeve 22, and the connecting sleeve 20 to move upwards as a whole, causing the collecting sleeve 22 to detach from the water surface. After the collecting sleeve 22 detaches from the water surface, the water in the connecting sleeve 20 and the separator cylinder 4 flows out from the connecting sleeve 20 and the separator cylinder 4 due to its own gravity. After the water in the connecting sleeve 20 and the separator cylinder 4 has drained out and the water level in the containment space has dropped below the permeable hole 44, drainage is applied. The water in pipe 450 has a guiding force to continue moving downwards. At this time, the remaining water in the guide container space is discharged from the guide pipe 450 through the drain pipe 450. Since the water discharged from the drain pipe 450 will first move upwards along the drain pipe 450 and then be discharged downwards, there is a certain height difference between the water after it moves upwards and the filter screen plate 24 and the grid plate 25. This allows the discharged water to impact the filter screen plate 24, thus completing the washing effect of small-volume impurities adhering to the filter screen plate 24 and effectively preventing the filter screen plate 24 from clogging after prolonged use.

[0048] Furthermore, in order to facilitate the downward movement of the drainage pipe 450 after the water intake pipe 1 and the water storage cylinder 21 are pulled upward, as shown in Figures 3 to 6, a sliding frame 46 is also connected to the partition cylinder 4. Several limiting guide blocks 460 are connected to the sliding frame 46. The several limiting guide blocks 460 are set one by one with several drainage pipes 450. A connecting push rod 461 and a driven block 462 are arranged sequentially on the limiting guide blocks 460.

[0049] In use, after the water intake pipe 1, connecting sleeve 20 and water storage cylinder 21 are inserted into the water intake port, the water in the water intake port enters the water storage cylinder 21 and is submerged in the filter box 23. As the water volume in the water storage cylinder 21 and the separator cylinder 4 increases and the water level rises, the sliding frame 46 is pushed upward by the rising buoyancy of the water. The upward movement of the sliding frame 46 drives all the connected connecting push rods 461, driven block 462 and limiting guide block 460 to move upward synchronously, so that the connecting push rods 461, driven block 462 and limiting guide block 460 are inserted into the extension sleeve 451. After the sliding frame 46 floats up and contacts the extension sleeve 451, it pushes the extension sleeve 451 to move upward synchronously along the drainage pipe 450 for a section. After the connecting push rods 461 and driven block 462 move upward and are inserted into the shorter section of the corresponding drainage pipe 450, the effect of restricting the continued outflow of water in the drainage pipe 450 is achieved.

[0050] After the water intake pipe 1, connecting sleeve 20, water storage cylinder 21, partition cylinder 4, and collecting sleeve 22 are moved upwards, causing the water in the partition cylinder 4 to drain out and the water level in the containment space to drop to the lower side of the permeable hole 44, at this time, under the restriction of the driven block 462, the water remaining in the drainage pipe 450 has not yet been discharged, and the water surface in the drainage pipe 450 is still in contact with the driven block 462. Since the water in the partition cylinder 4 has drained out, the sliding frame 46 lacks the upward buoyancy of water to continue supporting the sliding frame 46, connecting push rod 461, driven block 462, and limiting guide block 460 to remain at a higher position in the partition cylinder 4 (that is, the sliding frame 46 is in a relatively suspended position at this time), under the influence of its own gravity, it drives the sliding frame 46, connecting push rod 461, driven block 462, limiting guide block 460, and extension sleeve 451 to move together. As the body moves downward, the driven block 462 moves downward along the inner wall of a shorter section of the drain pipe 450 and disengages. At the same time, after the limiting guide block 460 disengages from the extension sleeve 451, due to the contact between the driven block 462 and the liquid surface in the drain pipe 450 and the downward movement of the driven block 462, the driven block 462 pulls the water in the drain pipe 450 to continue falling. After the driven block 462 disengages from the drain pipe 450, the traction force applied by the driven block 462 causes the water in the drain pipe 450 to overcome air resistance and fall down along the drain pipe 450. At the same time, the falling water in the drain pipe 450 and the extension sleeve 451 creates a pressure difference and a liquid level difference between the drain pipe 450 and the receiving space, thereby pushing the water in the receiving space to continue flowing into the drain pipe 450 and then being discharged until the water in the receiving space is drained.

[0051] Referring to Figures 5 and 6, to prevent the sliding frame 46 from shifting position as the water level rises in the partition cylinder 4, thus causing positional deviation between the corresponding driven block 462 and the drainage pipe 450, the sliding frame 46 is inserted into the partition cylinder 4 via several connecting slide bars 463. Several sliding grooves are formed on the partition cylinder corresponding to the connecting slide bars 463. The sliding grooves limit the movement of the connecting slide bars 463, and the connecting slide bars 463 limit the sliding movement, ensuring that the sliding frame 46 always slides vertically along the sliding grooves as the water level rises, maintaining the axial position between the driven block 462 and the drainage pipe 450.

[0052] Referring to Figures 4 to 6, the limiting guide block 460 has a certain weight, enabling the limiting guide block 460, sliding frame 46, connecting push rod 461, and driven block 462 to temporarily overcome the buoyancy of the water. The driven block 462 is made of a material with a certain degree of flexible deformation capability. In use, when the water level in the separator 4 is shallow and the sliding frame 46 is not fully submerged, the limiting guide block 460, sliding frame 46, connecting push rod 461, and driven block 462 are affected by their own weight, which is greater than the buoyancy of the water, keeping them in their initial positions. After the separator 4 is filled with water, the upward buoyancy of the water is greater than the overall weight of the limiting guide block 460, sliding frame 46, connecting push rod 461, and driven block 462, causing the limiting guide block 460, sliding frame 46, connecting push rod 461, and driven block 462 to deform. As the body moves upward, and since the sliding frame 46 is still some distance from the water surface, and at the same time the sliding frame 46 has a tendency to float upward on the water surface, the limiting guide block 460, the sliding frame 46, the connecting push rod 461 and the driven block 462 move upward as a whole at an accelerated speed, so that the connecting push rod 461 and the driven block 462 are inserted into the drainage pipe 450. The driven block 462 will produce a certain degree of flexible deformation after contacting the drainage pipe 450 to abut against the inner wall of the drainage pipe 450. The sliding frame 46 slides and fits against the lower end of the extension sleeve 451.

[0053] When the water intake pipe 1 is pulled upwards to drain the water from the separator 4, the extension sleeve 451, the limiting guide block 460, the sliding frame 46, the connecting push rod 461, and the driven block 462 move downwards with the water level. Due to the friction between the driven block 462 and the drain pipe 450, and the upward buoyancy of the water in the separator 4 on the limiting guide block 460, the sliding frame 46, the connecting push rod 461, and the driven block 462, the downward gravity and downward tendency of the limiting guide block 460 during its contact with the water in the separator 4 are overcome by the upward buoyancy of the water and the friction between the driven block 462 and the drain pipe 450. This allows the limiting guide block 460 and the sliding frame 462 to move downwards together. 6. The connecting push rod 461, driven block 462 and extension sleeve 451 as a whole did not completely move down and reset. The driven block 462 and connecting push rod 461 maintained the effect of limiting and blocking the drainage pipe 450. However, when the water in the separator 4 was about to be drained, the upward buoyancy of the water and the friction between the driven block 462 and the drainage pipe 450 were insufficient to overcome the downward gravity of the limiting guide block 460, etc. The limiting guide block 460, sliding frame 46, connecting push rod 461 and driven block 462 as a whole had a tendency to move down. As the water level moved down, the limiting guide block 460, connecting push rod 461 and driven block 462 gradually separated from the extension sleeve 451 and connecting push rod 461.

[0054] It should be noted that as the water in the sealing cylinder is gradually drained, the downward flow of water will not only provide an upward buoyancy to the sliding frame 46 and the limiting guide block 460, but will also intermittently apply a downward traction force to the sliding frame 46 and the limiting guide block 460, thereby facilitating the gradual detachment of the driven block 462 from the drainage pipe 450.

[0055] Referring to Figures 4 to 6, since the water in the drainage pipe 450 is blocked by the driven block 462, the connecting push rod 461, and the limiting guide block 460, the driven block is designed with a conical structure to prevent the water in the drainage pipe 450 from being blocked by the driven block 462 and the limiting guide block 460 after flowing out, thus reducing most of the impact force. The conical structure of the driven block 462 effectively avoids the vertical impact of the water in the drainage pipe 450 on the driven block 462, thereby preventing excessive attenuation of the downward impact force after the water in the drainage pipe 450 impacts the driven block 462, and thus ensuring the cleaning effect on the filter screen 24.

[0056] Referring to Figures 7 and 8, the collecting sleeve 22 is circumferentially provided with several baffles 220. These baffles 220 are rotatably connected to the water storage cylinder 21 via torsion springs (not shown in the figures), ensuring that the baffles 220 are always deflected and close to the connecting conduit 40. In use, by driving several agitator blades 43 to rotate, the centrifugal force applied by the rotating agitator blades 43 drives the floating impurities located between the filter screen plate 24 and the grid plate 25 into the collecting sleeve 22. At this time, the water ripples caused by the agitator blades 43 push the baffles 220 to deflect and open, simultaneously pushing the floating impurities into the space between the collecting sleeve 22 and the baffles 220, thus completing the collection of impurities. At the same time, the baffles 220 effectively prevent impurities in the collecting sleeve 22 from being accidentally discharged and re-polluting the water.

[0057] During operation: First, place the section of the water intake pipe 1 away from the water pump, along with the filter head 2 and the float plate 3, into the water intake port. The buoyancy of the float plate 3 in the water keeps the filter head 2 submerged in the upper layer of the water in the water intake port, thus preventing it from sinking to the bottom and drawing in the sludge, sand, and other impurities accumulated at the bottom into the water intake pipe 1.

[0058] Step 2: After immersing the filter head 2 in water, the water in the water inlet passes through the grid plate 25, the filter screen plate 24 and the activated carbon adsorption layer in sequence and then enters the connecting sleeve 20 to achieve the filtration and purification effect in the water inlet. Then, the water pump is turned on to use the suction force generated by the water pump to draw water from the water inlet pipe 1.

[0059] Step 3: During the extraction process, the water flowing through the inlet channel 41 on the connecting sleeve 20 and the connecting pipe 40 will pass through the impeller 42, driving the impeller 42, the connecting pipe 40 and several agitator blades 43 to rotate. Through the rotation of the agitator blades 43, the water and floating impurities below the filter screen plate 24 and the grid plate 25 will be pushed in a circular motion, so as to push the floating impurities away from the middle of the grid plate 25 and the filter screen plate 24, thereby avoiding clogging.

[0060] Step 4: After water extraction is completed, the water extraction pipe 1, filter head 2 and float plate 3 are installed to guide the water out. During the filtration process, the height difference between the water and the filter screen plate 24 and the grid plate 25 is used to achieve a self-cleaning effect on the filter screen plate 24 and the grid plate 25.

[0061] It will be apparent 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 invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and not restrictive.

[0062] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water intake filtration device for rural water supply, comprising a water intake pipe (1), characterized in that: The lower end of the water intake pipe (1) is connected to a filter head (2) for filtering the water entering the water intake pipe (1). The filter head (2) includes a connecting sleeve (20) sleeved on the water intake pipe (1), a water storage cylinder (21) sleeved on the connecting sleeve (20), and a collection sleeve (22) detachably installed at the lower end of the water storage cylinder (21). A filter box (23), a filter screen plate (24), and a grid plate (25) are sequentially connected to the lower sides of the connecting sleeve (20), the water storage cylinder (21), and the collection sleeve (22). Through the mutual cooperation between the filter box (23), the filter screen plate (24), and the grid plate (25), multi-level filtration of the water entering the water intake pipe (1) is achieved. Filtration effect; the inner walls of the water storage cylinder (21) are connected by a partition cylinder (4), and the partition cylinder (4), water storage cylinder (21), collection sleeve (22) and connecting sleeve (20) are coaxially connected to a connecting conduit (40) that is connected to the water intake pipe (1). The connecting conduit (40) has several water inlet channels (41) evenly formed around it. The connecting conduit (40) passes through the filter box (23) and the filter screen plate (24) in sequence. The connecting conduit (40) is also fitted with an impeller (42) located between the filter box (23) and several water inlet channels (41). The connecting conduit (40) is also evenly connected around it with several stirring blades (43) located between the filter screen plate (24) and the grid plate (25).

2. The water intake filtration device for rural water supply according to claim 1, characterized in that: The connecting sleeve (20) is fitted with a float plate (3) located on the upper side of the water storage cylinder (21) to provide the required buoyancy for the whole, so as to prevent the filter head (2) and the water intake pipe (1) from going too deep into the water.

3. The water intake filtration device for rural water supply according to claim 1, characterized in that: A space is formed between the partition cylinder (4) and the water storage cylinder (21). A number of permeable holes (44) are uniformly formed on the upper circumference of the partition cylinder (4) for connecting the partition cylinder (4) and the water storage cylinder (21).

4. A water intake filtration device for rural water supply according to claim 1, characterized in that: The connecting sleeve (20) is fitted with an installation ring plate (45) that is connected to the partition cylinder (4), and a number of drainage pipes (450) with bending structures are passed through the installation ring plate (45) and the partition cylinder (4).

5. A water intake filtration device for rural water supply according to claim 4, characterized in that: The separator (4) is also connected to a sliding frame (46), and a number of limiting guide blocks (460) are connected to the sliding frame (46). The number of limiting guide blocks (460) are set one by one to a number of drainage pipes (450). A connecting push rod (461) and a driven block (462) are sequentially set on the limiting guide block (460).

6. A water intake filtration device for rural water supply according to claim 5, characterized in that: The sliding frame (46) is inserted into the partition cylinder (4) by a number of connecting slides (463), and a number of sliding grooves are formed on the partition cylinder corresponding to the connecting slides (463).

7. A water intake filtration device for rural water supply according to claim 5, characterized in that: The limiting guide block (460) has a certain weight, and the driven block (462) is made of a material with a certain flexible deformation capability.

8. A water intake filtration device for rural water supply according to claim 5, characterized in that: The driven block (462) is configured with a conical structure.

9. A water intake filtration device for rural water supply according to claim 1, characterized in that: The collecting sleeve (22) is provided with several baffles (220) evenly arranged in the circumferential direction.

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