Water intake filtering device for rural water supply

Abstract

The invention relates to the field of water treatment, in particular to a water intake filtering device for rural water supply, which comprises a water intake pipe, and the lower end of the water intake pipe is connected with a filtering head for filtering water entering the water intake pipe; in the water pumping process, an impeller, a connecting guide pipe and stirring blades are driven to rotate to generate centrifugal force, floating impurities below a filter screen and a grating plate are pushed to the direction away from the middle of the grating plate, the problem that the impurities are accumulated on the surface of the filter screen is effectively avoided, and the filter screen plate and the grating 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

Technical Field

[0001] The invention relates to the field of water treatment, in particular to a water intake filtering device for rural water supply. Background Art

[0002] In the water supply system in rural areas, due to the limitations of geographical environment and economic development level, the water source may be relatively remote or the water quality is poor, and water is usually collected in a centralized manner. However, there is often no perfect protection mechanism at the water intake, and residents are active near the water source. The water resources that people can directly use often contain more impurities such as silt, algae and floating objects. Therefore, the water taken through the water intake usually needs to be filtered before it can be used conveniently.

[0003] However, there are usually some problems in the daily use of ordinary water intake filtering means. With the development of science and technology, technical personnel in related fields have also carried out a lot of optimization on the filtering means used for water intakes. In order to make a more accurate comparison, a Chinese patent with publication number CN217895275U discloses a rural drinking water filtration system, including a well, a filter net, a slide rod, a float, earrings and a filter head; when it is in use, the filter head is always floating in the well water under the buoyancy of the float through the matching arrangement between the slide rod, the float, the earrings and the filter head, thereby effectively avoiding the problem that the filtering equipment is easily buried by the silt of the collapsed well wall, affecting the filtration quality, and ensuring the quality of drinking water.

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

[0005] 1. Before use, the above-mentioned device needs to be installed with a mounting plate, a sliding rod, a ground nail and a filter net at the bottom of the water intake (well). When in use, the user drives the float to drive the earrings, the water pumping pipe and the filter head to float on the water surface, and then extracts the water in the water pumping pipe to complete the effect of filtering and extracting water. However, when in use, the earrings, the filter head and the water pumping pipe are always driven by the float to slide along the sliding rod and float on the water surface, that is, the mounting plate, the sliding rod, the ground nail and the filter net arranged at the bottom of the water intake are always immersed in the water. When the facilities arranged at the bottom of the water need to be maintained and replaced after long-term use, it is difficult for the user to complete the maintenance and replacement procedures quickly and effectively.

[0006] 2. When using the above device, the filter and the float need to be immersed in water, and after the water is taken in, the filter head and the float are still immersed in water. After long-term use, the floating impurities in the water inlet (well) will adhere to the filter head and the outer side of the float to a certain extent. If not removed in time, the floating impurities will accumulate and block the water inlet of the filter head, affecting the subsequent water intake quality.

[0007] Therefore, based on the above-stated viewpoints, there is still room for improvement in the existing means of filtering water intakes. Summary of the invention

[0008] In order to solve the above problems, the present invention provides a water intake filter 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 water entering the water intake pipe.

[0009] The filter head includes a connecting sleeve mounted on the water intake pipe, a water storage cylinder is mounted on the connecting sleeve, a collecting sleeve is detachably mounted on the lower end of the water storage cylinder, a filter box, a filter mesh plate and a grille plate are respectively connected to the lower sides of the connecting sleeve, the water storage cylinder and the collecting sleeve, and the filter box, the filter mesh plate and the grille plate cooperate with each other to achieve a multi-level filtering effect on the water entering the water intake pipe.

[0010] Preferably, the connecting sleeve is provided with a floating plate located on the upper side of the water storage cylinder to provide the required buoyancy for the whole so as to prevent the filter head and the water intake pipe from being too deeply immersed in the water.

[0011] Preferably, the inner walls of the water storage cylinder are commonly connected with a partition cylinder, and a connecting conduit connected to the water intake pipe is coaxially penetrated through the partition cylinder, the water storage cylinder, the collecting sleeve and the connecting sleeve, and a plurality of water inlet channels are evenly formed circumferentially on the connecting conduit. The connecting conduit passes through the filter box and the filter mesh plate in sequence, and the connecting conduit is also sleeved with an impeller located between the filter box and the plurality of water inlet channels. The connecting conduit is also evenly connected circumferentially with a plurality of stirring blades located between the filter mesh plate and the grille plate.

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

[0013] Preferably, a mounting ring plate connected to the separation tube is sleeved on the connecting sleeve, and a plurality of drainage tubes with a bent structure are passed through the mounting ring plate and the separation tube.

[0014] Preferably, the separation cylinder is also connected to a sliding frame in a limiting manner, the sliding frame is connected to a plurality of limiting guide blocks, the plurality of limiting guide blocks are arranged corresponding to a plurality of drainage tubes one by one, and the limiting guide blocks are sequentially provided with connecting push rods and driven blocking blocks.

[0015] Preferably, the sliding frame is inserted on the separation cylinder through a plurality of connecting slide bars, and a plurality of sliding grooves are formed on the isolation cylinder corresponding to the connecting slide bars.

[0016] Preferably, the position-limiting guide block has a certain deadweight, and the driven blocking block is made of a material with a certain flexible deformation capability.

[0017] Preferably, the driven blocking block is arranged in a conical structure.

[0018] Preferably, a plurality of baffles are evenly arranged circumferentially on the collecting sleeve.

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

[0020] 1. The present invention drives the impeller, the connecting duct and the stirring blades to rotate during the process of pumping water to generate centrifugal force, so as to push the floating impurities under the filter screen and the grid plate away from the middle of the grid plate, thereby effectively avoiding the problem of impurities accumulating on the surface of the filter screen, preventing the filter screen plate and the 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] 2. The present invention sets a accommodating space between the separation cylinder and the water storage cylinder. After water is taken in, it is only necessary to control the water intake pipe to move upward to drive the filter head and the floating plate to separate from the water surface, and the water in the accommodating space can be discharged through the drainage pipe to impact the filter screen and the grid plate, washing away smaller impurities attached to the filter screen, realizing automatic cleaning function, further avoiding the problem of clogging of the filter screen and the grid plate, and extending the service life of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

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

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

[0025] Figure 3 It is a structural schematic diagram of the separation cylinder of the present invention.

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

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

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

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

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

[0031] In the figure, 1. water intake pipe; 2. filter head; 20. connecting sleeve; 21. water storage cylinder; 22. collecting sleeve; 220. baffle; 23. filter box; 24. filter screen plate; 25. grille plate; 3. floating plate; 4. partition cylinder; 40. connecting duct; 41. water inlet channel; 42. impeller; 43. stirring blade; 44. water permeable hole; 45. mounting ring plate; 450. drainage pipe; 451. extension sleeve; 46. sliding frame; 460. limiting guide block; 461. connecting push rod; 462. driven block; 463. connecting slide bar. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 To Attachment Figure 8 Embodiments of the present invention are described in detail.

[0033] The embodiment of the present application discloses a water intake filtering device for rural water supply, which explains that the device is mainly used in the process of filtering water from rural water intakes, and technically achieves the effect of filtering the water obtained from the water intake; in particular, during the water intake process, the filter box, filter screen plate and grille plate cooperate with each other to achieve a multi-level filtering effect on the water entering the water intake pipe; further, the device also achieves the effect of self-cleaning of the filter screen plate and grille plate after the water intake is completed through the rotation of the connecting conduit and the stirring blades arranged in the water storage cylinder and the water flow guided out by the drainage pipe.

[0034] Reference Figure 1 As shown, a water intake filtering 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 for providing suction force for extracting water in the water intake. The lower end of the water intake pipe 1 is connected to the filter head 2 for filtering the water entering the water intake pipe 1.

[0035] When in use, the water intake pipe 1 and the filter head 2 are placed into the water intake port, and then the water pump is started to extract the water entering the water intake pipe 1. During the extraction process, the water entering therein is filtered through the filter head 2 to complete the water intake and filtering treatment effect of the water intake port.

[0036] Reference Figures 1 to 3As shown, 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 plate 24 and a grid plate 25. The connecting sleeve 20 is sleeved on the water intake pipe 1, and the connecting sleeve 20 is also sleeved with a water storage cylinder 21 located at the lower side of the water intake pipe 1. The collecting sleeve 22 is detachably installed at the lower end of the water storage cylinder 21. The filter box 23, the filter screen plate 24 and the grid plate 25 are connected to the lower sides of the connecting sleeve 20, the water storage cylinder 21 and the collecting sleeve 22 in sequence. The filter mesh plate 24 and the grille plate 25, the grille plate 25 is used to screen out large impurities floating on the water surface, the aperture of the filter hole on the filter mesh plate 24 is smaller than the aperture of the grille plate 25, so as to further filter the water entering the water storage cylinder 21, and the filter box 23 is filled with a plurality of activated carbons to form an activated carbon adsorption layer, so as to further filter the water entering the water intake pipe 1, and the filter box 23, the filter mesh plate 24 and the grille plate 25 cooperate with each other to achieve a multi-level filtering effect on the water entering the water intake pipe 1.

[0037] When in use, the connecting sleeve 20, the water storage cylinder 21, the collecting sleeve 22, the filter box 23, the filter screen plate 24 and the grid plate 25 are put into the water intake port and contacted with water. The water sequentially penetrates the grid plate 25, the filter screen plate 24 and the activated carbon adsorption layer in the filter box 23 to the lower side of the water intake pipe 1.

[0038] At this time, the grid plate 25 effectively screens out large suspended matter in the water, such as leaves and branches, to prevent them from entering the subsequent filtering stage, and then the filter plate 24 further filters out smaller particles of impurities, such as mud and algae, and then the activated carbon adsorption layer adsorbs organic pollutants, heavy metal ions, and tiny impurities such as odor and pigment in the water.

[0039] By cooperating with each other, the filter box 23, the filter screen plate 24 and the grille plate 25, the quality of drinking water entering the water intake pipe 1 is effectively purified, thereby completing the multi-level filtration effect entering the water intake pipe 1, and then the water pump is activated to extract water from the water intake pipe 1 and the water storage cylinder 21, thereby completing the effect of taking the filtered water.

[0040] Reference Figures 1 to 3 As shown, a floating plate 3 located on the upper side of the water storage cylinder 21 is sleeved 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 being too deeply immersed in the water.

[0041] When in use, after a section of the water intake pipe 1 away from the water pump and the filter head 2 are put into the water intake as a whole, the filter head 2 and the water intake pipe 1 are immersed in the water due to the downward influence of their overall gravity. At this time, the buoyancy of the float 3 in the water and the connected water intake pipe 1 are used to correct the positions 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, so that the filter head 2 and the float 3 float as a whole on the upper layer of the water surface, preventing silt and sand from entering the water storage cylinder 21 and causing blockage of the filter mesh plate 24 and the grille plate 25 therein.

[0042] Further, refer to Figures 2 to 4 As shown, a partition cylinder 4 is commonly connected between the inner walls of the water storage cylinder 21, and a connecting duct 40 connected to the water intake pipe 1 is coaxially penetrated between the partition cylinder 4, the water storage cylinder 21, the collecting sleeve 22 and the connecting sleeve 20. A plurality of water inlet channels 41 are evenly formed circumferentially on the connecting duct 40. The connecting duct 40 rotates and passes through the filter box 23 and the filter mesh plate 24 in turn. The connecting duct 40 is also sleeved with an impeller 42 located between the filter box 23 and the plurality of water inlet channels 41. A plurality of stirring blades 43 located between the filter mesh plate 24 and the grille plate 25 are also evenly connected circumferentially on the connecting duct 40.

[0043] During use, when the water pump is activated for extraction, the water in the connecting sleeve 20 moves upward along the inner wall of the connecting sleeve 20 through the suction force generated by the water pump and is sucked 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 moves upward and flows through the impeller 42, the upward kinetic energy and pressure energy of the water are converted into mechanical energy of the impeller 42, driving 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 on the lower side of the filter screen plate 24 and the grid plate 25 to make a circular motion, so that the floating impurities in the water floating on the lower side of the grid plate 25 have a centrifugal force in the direction away from the middle of the grid plate 25, thereby preventing the floating impurities in the water from entering the collecting sleeve 22 and the water storage cylinder 21.

[0044] Reference Figure 3 and Figure 4 As shown, a receiving space is formed between the separation cylinder 4 and the water storage cylinder 21, and a plurality of water-permeable holes 44 are evenly formed on the upper side of the separation cylinder 4 in the circumferential direction for penetrating between the separation cylinder 4 and the water storage cylinder 21. When in use, the water filtered through the grid plate 25 and the filter screen plate 24 is immersed in the water storage cylinder 21 at a height higher than the water-permeable holes 44 on the separation cylinder 4, a part of the water continues to move upward through the filter box 23, and then is pumped out by the water pump, and the other part enters the receiving space between the separation cylinder 4 and the water storage cylinder 21 through the water-permeable holes 44 and is temporarily stored until the receiving space is filled with water.

[0045] Reference Figure 3 and Figure 4 As shown, a mounting ring plate 45 connected to the separation tube 4 is sleeved on the connecting sleeve 20, and a plurality of drainage tubes 450 with a bent structure are commonly passed through the mounting ring plate 45 and the separation tube 4. The bent sections of the mounting ring plate 45 and the drainage tube 450 are located on the upper side of the water permeable hole 44. The drainage tube 450 is a bent inverted "U"-shaped tube structure, and the lengths of the two vertical sections are inconsistent. The longer section of the drainage tube 450 is inserted into the accommodating space and is close to the bottom of the accommodating space (not in contact with the inner bottom wall of the water storage tube 21), and the shorter section of the drainage tube 450 passes through the accommodating space, and the outer side surface of the shorter section of the drainage tube 450 is also slidably sleeved with an extension sleeve 451 located on the lower side of the mounting ring plate 45.

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

[0047] When it is necessary to take out the water intake pipe 1 and the filter head 2 put into the water intake port, the water intake pipe 1 is pulled upward, and the water intake pipe 1 moves upward to drive the water storage cylinder 21, the separation cylinder 4, the collecting sleeve 22 and the connecting sleeve 20 to move upward as a whole, so that the collecting sleeve 22 is separated from the water surface. After the collecting sleeve 22 is separated from the water surface, the water located in the connecting sleeve 20 and the separation cylinder 4 flows out from the connecting sleeve 20 and the separation cylinder 4 under the influence of its own gravity. After the water in the connecting sleeve 20 and the separation cylinder 4 flows out and the water level in the accommodating space moves down to below the water permeable hole 44, the drainage is applied. The water in the tube 450 has a guiding force to continue to move downward. At this time, the remaining water in the guide accommodating space is discharged from the drainage tube 450 through the drainage tube 450. Since the water discharged from the drainage tube 450 will first move upward along the drainage tube 450 and then be discharged downward, there is a certain height difference between the water after moving upward and the filter screen plate 24 and the grille plate 25, so that the discharged water impacts the filter screen plate 24, which can complete the effect of flushing the smaller volume of impurities attached to the filter screen plate 24, and effectively avoid the occurrence of clogging problems when the filter screen plate 24 is used for a long time.

[0048] Furthermore, in order to facilitate the upward extraction of the water intake pipe 1 and the water storage cylinder 21, the guiding force applied to the drainage pipe 450 to continue to move downward is referred to Figures 3 to 6 As shown, the partition cylinder 4 is also connected to a sliding frame 46, and the sliding frame 46 is connected to a plurality of limiting guide blocks 460. The plurality of limiting guide blocks 460 are arranged one by one corresponding to a plurality of drainage tubes 450, and the limiting guide blocks 460 are sequentially provided with connecting push rods 461 and driven blocking blocks 462.

[0049] During use, after the water intake pipe 1, the connecting sleeve 20 and the water storage cylinder 21 are put into the water intake port, the water in the water intake port enters the water storage cylinder 21 and is immersed in the filter box 23. As the water volume in the water storage cylinder 21 and the separation cylinder 4 increases and the water level moves up, 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, the driven blocking block 462 and the limiting guide block 460 to move upward synchronously, so that the connecting push rod 461, the driven blocking block 462 and the 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 rod 461 and the driven blocking block 462 are moved up and inserted in a shorter section of the corresponding drainage pipe 450, the effect of limiting 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, separation cylinder 4 and collecting sleeve 22 are moved upward, so that the water in the separation cylinder 4 flows out and the water level in the accommodating space moves down to the lower side of the water permeable hole 44, at this time, under the restriction of the driven block 462, the water retained in the drainage pipe 450 has not 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 separation cylinder 4 has flowed out, the sliding frame 46 lacks the upward buoyancy of the water to continue to support the sliding frame 46, the connecting push rod 461, the driven block 462 and the limiting guide block 460 to stay at a higher position in the separation cylinder 4 (that is, the sliding frame 46 is in a relatively suspended position at this time), then under the influence of its own gravity, the sliding frame 46, the connecting push rod 461, the driven block 462, the limiting guide block 460 and the extension sleeve 451 are driven to move upward. The body moves downward, and the driven block 462 moves downward along the inner wall of a shorter section of the drainage tube 450 and loses contact. At the same time, after the limiting guide block 460 is separated from the extension sleeve 451, due to the contact between the driven block 462 and the liquid surface in the drainage tube 450 and the downward movement of the driven block 462, the driven block 462 pulls the water in the drainage tube 450 to continue to fall. After the driven block 462 is separated from the drainage tube 450, the traction force applied by the driven block 462 makes the water in the drainage tube 450 overcome the air resistance downward and fall along the drainage tube 450. At the same time, the falling of the water in the drainage tube 450 and the extension sleeve 451 causes an air pressure difference and a liquid level difference to be generated in the drainage tube 450 and the accommodating space, thereby pushing the water in the accommodating space to continue to flow into the drainage tube 450 and then be discharged until the water in the accommodating space is drained.

[0051] Reference Figure 5 and Figure 6As shown, in order to prevent the sliding frame 46 from being driven to shift position as the water level in the separation tube 4 rises, thereby causing position deviation between the driven block 462 and the drainage tube 450, which are in corresponding positions, the sliding frame 46 is inserted into the separation tube 4 through a plurality of connecting slide bars 463, and a plurality of sliding grooves are formed on the sealing tube corresponding to the connecting slide bars 463. The sliding grooves limit the connection slide bars 463, and the plurality of connecting slide bars 463 limit the sliding, so as to ensure that when the sliding frame 46 rises with the water level, it always slides along the sliding grooves in the vertical direction, and maintains the axial position between the driven block 462 and the drainage tube 450.

[0052] Reference Figures 4 to 6 As shown, the limit guide block 460 has a certain self-weight, so that the limit guide block 460, the sliding frame 46, the connecting push rod 461 and the driven block 462 can temporarily overcome the buoyancy of the water. The driven block 462 is made of a material with a certain flexible deformation ability. When in use, when the water level in the partition cylinder 4 is shallow and the sliding frame 46 is not immersed too much, the limit guide block 460, the sliding frame 46, the connecting push rod 461 and the driven block 462 are affected by their own gravity, which is greater than the buoyancy of the water, and keep the initial position. After the partition cylinder 4 is filled with water, the upward buoyancy of the water is greater than the overall gravity of the limit guide block 460, the sliding frame 46, the connecting push rod 461 and the driven block 462, so that the limit guide block 460, the sliding frame 46, the connecting push rod 461 and the driven block 462 are The body moves upward, and since the sliding frame 46 is still some distance away from the water surface and has a tendency to float on the water surface, the limiting guide block 460, the sliding frame 46, the connecting push rod 461 and the driven block 462 are accelerated to move upward as a whole, so that the connecting push rod 461 and the driven block 462 are inserted into the drainage tube 450, and the driven block 462 produces a certain degree of flexible deformation after contacting the drainage tube 450 to resist the inner wall of the drainage tube 450, and the sliding frame 46 slides and fits on the lower end of the extension sleeve 451.

[0053] When the water intake pipe 1 is to be drawn upward to discharge the water in the partition cylinder 4, the extension sleeve 451, the limiting guide block 460, the sliding frame 46, the connecting push rod 461 and the driven block 462 as a whole move downward a certain distance along with the water level. Due to the friction between the driven block 462 and the drainage tube 450, the water in the partition cylinder 4 exerts an upward buoyancy on the limiting guide block 460, the sliding frame 46, the connecting push rod 461 and the driven block 462 as a whole. As a result, in the process of contacting the limiting guide block 460 with the water in the partition cylinder 4, its own downward gravity and downward movement tendency are overcome by the upward buoyancy of the water and the friction between the driven block 462 and the drainage tube 450, so that the limiting guide block 460, the sliding frame 46, the connecting push rod 461 and the driven block 462 are 6. The connecting push rod 461, the driven block 462 and the extension sleeve 451 as a whole have not completely moved down and reset, and the driven block 462 and the connecting push rod 461 maintain the effect of limiting and blocking the drainage tube 450. When the water in the partition tube 4 is about to be drained, the upward buoyancy of the water and the friction between the driven block 462 and the drainage tube 450 are not sufficient to overcome the downward gravity of the limiting guide block 460, etc. The limiting guide block 460, the sliding frame 46, the connecting push rod 461 and the driven block 462 as a whole have a tendency to move downward all the time, and as the water level moves downward, the limiting guide block 460, the connecting push rod 461 and the driven block 462 gradually separate from the extension sleeve 451 and the connecting push rod 461.

[0054] It should be noted that in the process of gradually draining the water from the isolation tube, the downward flow of water will not only provide upward buoyancy to the sliding frame 46 and the limiting guide block 460, but will also intermittently apply downward traction to the sliding frame 46 and the limiting guide block 460, thereby facilitating the follower block 462 to gradually detach from the drainage tube 450.

[0055] Reference Figures 4 to 6 As shown, 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, in order 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 and removing most of the impact force, the driven block is set in a conical structure. 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, so as to achieve the effect of preventing the downward impact force of the water in the drainage pipe 450 from being excessively attenuated after impacting the driven block 462, thereby ensuring the cleaning effect of the filter screen 24.

[0056] Reference Figure 7 and Figure 8As shown, a plurality of baffles 220 are evenly arranged on the circumferential direction of the collecting sleeve 22, and the plurality of baffles 220 are rotatably connected to the water storage cylinder 21 through torsion springs (not shown in the figure), so that the baffles 220 are always deflected and pressed in the direction close to the connecting conduit 40. When in use, after driving a plurality of stirring blades 43 to rotate, the centrifugal force applied by the rotation of the stirring blades 43 drives the floating impurities between the filter screen plate 24 and the grid plate 25 to enter the collecting sleeve 22, at which time the vibration of the water driven by the stirring blades 43 pushes the baffles 220 to deflect and open, and at the same time pushes the floating impurities between the collecting sleeve 22 and the baffles 220 to complete the collection of the impurities therein, and at the same time, the setting of the baffles 220 also effectively prevents the impurities in the collecting sleeve 22 from being accidentally discharged and re-polluting the water.

[0057] During operation: the first step is to put a section of the water intake pipe 1 away from the water pump, the filter head 2 and the float 3 into the water intake port, and the buoyancy of the float 3 in the water keeps the filter head 2 immersed in the upper layer of the water layer in the water intake port to avoid sinking to the bottom and absorbing impurities such as sludge and sediment 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 mesh plate 24 and the activated carbon adsorption layer in turn and then enters the connecting sleeve 20 to achieve the filtering and purification effect in the water inlet. Then the water pump is activated to use the suction force generated by the water pump to extract the water in the water intake pipe 1.

[0059] Step 3: During the extraction process, water passing through the water inlet channel 41 on the connecting sleeve 20 and the connecting duct 40 will flow through the impeller 42, driving the impeller 42, the connecting duct 40 and the plurality of stirring blades 43 to rotate. Through the rotation of the plurality of stirring blades 43, the water and floating impurities under the filter screen plate 24 and the grille plate 25 are pushed to make a circular motion, so as to achieve the effect of pushing the floating impurities away from the grille plate 25 and the middle of the filter screen plate 24, thereby avoiding blockage.

[0060] Step 4: After the water is taken in, the water pipe 1, filter head 2 and floating plate 3 are installed to guide the water therein to be filtered out. During the filtering process, the height difference between the water and the filter mesh plate 24 and the grille plate 25 is used to achieve a self-cleaning effect on the filter mesh plate 24 and the grille plate 25.

[0061] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0062] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water intake filter 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 water entering the water intake pipe (1), wherein: The filter head (2) comprises a connecting sleeve (20) sleeved on the water intake pipe (1), a water storage cylinder (21) sleeved on the connecting sleeve (20), a collecting sleeve (22) detachably mounted on the lower end of the water storage cylinder (21), a filter box (23), a filter screen plate (24) and a grille plate (25) are connected to the lower sides of the connecting sleeve (20), the water storage cylinder (21) and the collecting sleeve (22) in sequence, and the filter box (23), the filter screen plate (24) and the grille plate (25) cooperate with each other to achieve a multi-level filtering effect on the water introduced into the water intake pipe (1).

2. A rural water supply water intake filtering device according to claim 1, characterized in that: The connecting sleeve (20) is provided with a floating plate (3) located on the upper side of the water storage cylinder (21) for providing the required buoyancy of the whole to prevent the filter head (2) and the water intake pipe (1) from being too deeply immersed in the water.

3. A rural water supply water intake filtering device according to claim 1, characterized in that: The inner walls of the water storage cylinder (21) are commonly connected with a partition cylinder (4); a connecting conduit (40) connected to the water intake pipe (1) is coaxially penetrated through the partition cylinder (4), the water storage cylinder (21), the collecting sleeve (22) and the connecting sleeve (20); a plurality of water inlet channels (41) are uniformly formed circumferentially on the connecting conduit (40); the connecting conduit (40) passes through the filter box (23) and the filter screen plate (24) in sequence; the connecting conduit (40) is also sleeved with an impeller (42) located between the filter box (23) and the plurality of water inlet channels (41); and a plurality of stirring blades (43) located between the filter screen plate (24) and the grille plate (25) are also uniformly connected circumferentially on the connecting conduit (40).

4. A rural water supply water intake filtering device according to claim 3, characterized in that: An accommodating space is formed between the separation cylinder (4) and the water storage cylinder (21), and a plurality of water-permeable holes (44) for penetrating between the separation cylinder (4) and the water storage cylinder (21) are uniformly formed on the upper side of the separation cylinder (4) in the circumferential direction.

5. A rural water supply water intake filtering device according to claim 3, characterized in that: The connecting sleeve (20) is sleeved with a mounting ring plate (45) connected to the separation tube (4), and a plurality of drainage tubes (450) with a bent structure are passed through the mounting ring plate (45) and the separation tube (4).

6. A rural water supply water intake filtering device according to claim 5, characterized in that: The separation cylinder (4) is also limitedly connected to a sliding frame (46), and the sliding frame (46) is connected to a plurality of limit guide blocks (460). The plurality of limit guide blocks (460) are arranged one by one corresponding to the plurality of drainage tubes (450), and the limit guide blocks (460) are sequentially provided with connecting push rods (461) and driven blocking blocks (462).

7. A rural water supply water intake filter device according to claim 6, characterized in that: The sliding frame (46) is inserted into the partition cylinder (4) via a plurality of connecting slide bars (463), and a plurality of sliding grooves are formed on the isolation cylinder corresponding to the connecting slide bars (463).

8. A rural water supply water intake filter device according to claim 6, characterized in that: The position-limiting guide block (460) has a certain deadweight, and the driven blocking block (462) is made of a material with a certain flexible deformation capability.

9. A rural water supply water intake filter device according to claim 6, characterized in that: The driven blocking block (462) is arranged in a conical structure.

10. A rural water supply water intake filtering device according to claim 1, characterized in that: A plurality of baffles (220) are evenly arranged circumferentially on the collecting sleeve (22).

Images