Rural domestic sewage treatment device and use method

Abstract

The invention relates to the technical field of sewage treatment, in particular to a rural domestic sewage treatment device and a use method. According to the technical scheme, the device comprises a treatment box, at least two vertically-distributed filtering devices are installed in the treatment box, each filtering device comprises two symmetrically-arranged filtering plates, the diameter of a filtering hole of the upper filtering plate is larger than that of a filtering hole of the lower filtering plate, and a cleaning device is fixed to the middle of each filtering device; and an oil cleaning device is arranged in the cleaning device. According to the scheme, through the arrangement of the oil cleaning device, oil can be quickly and efficiently cleaned after being filtered by the filtering device, oil stains can be discharged in time, the oil cleaning roller rolls on the filtering plate, the filtering plate can be brushed through bristles, and the oil stains are adsorbed through an oil absorption sponge sleeve.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a rural domestic sewage treatment device and a use method thereof. Background Art

[0002] With the development of social economy and the improvement of people's living standards, the amount of sewage discharged in rural areas is increasing. However, due to the lagging infrastructure construction and insufficient capital investment, most rural areas have not yet established an effective sewage treatment system, resulting in the direct discharge of domestic sewage into the natural environment, which seriously pollutes surface water and groundwater and affects the health of residents and the ecological environment.

[0003] The place where the largest amount of rural sewage is generated is often the farmer's kitchen. The existing rural sewage treatment device can discharge the sewage residue through filtering, solving the problem of pipe blockage and water pollution. However, kitchen sewage often contains a lot of oil. If the oil in the treatment device cannot be cleaned during long-term use, it will lead to the breeding of a large number of bacteria. Finally, the bacteria will infiltrate into the kitchen, causing food safety problems in the kitchen. Summary of the invention

[0004] The purpose of the present invention is to address the problems existing in the background technology and to propose a rural domestic sewage treatment device and a method of use.

[0005] The technical solution of the present invention is: a rural domestic sewage treatment device and a method of use, comprising a treatment box, wherein at least two filter devices distributed up and down are installed in the treatment box, wherein the filter device comprises two filter plates arranged symmetrically, and the diameter of the filter hole of the upper filter plate is larger than the diameter of the filter hole of the lower filter plate, and a cleaning device is fixed in the middle of the filter device, and an oil cleaning device is arranged in the cleaning device;

[0006] Both sides of the oil cleaning device are provided with oil cleaning rollers that can move along the surface of the filter plate, and also include a slag pushing plate installed on the oil cleaning roller. Both sides of the filter plate are provided with inclined frames fixed in the processing box, and toothed plates distributed up and down are installed in the inclined frames. Gears are fixed at both ends of the oil cleaning roller, and the gears and the toothed plates are meshed so that the oil cleaning roller rolls along the filter plate. The oil cleaning roller includes a roller frame, and the outer shell of the roller frame is provided with an oil-absorbing sponge sleeve, and the oil-absorbing sponge sleeve is provided with bristles. An activated carbon bag in contact with the oil-absorbing sponge sleeve is fixed in the roller frame.

[0007] Preferably, mounting rods are fixed at both ends of the roller frame, gears are fixed to the mounting rods, an electric push rod is installed outside the processing box, a connecting rod is rotatably installed on one side of the mounting rod, the connecting rod and the output end of the electric push rod are fixedly connected, a shaft sleeve is sleeved on the mounting rod, a slag pusher plate is fixed between the two shaft sleeves, and the slag pusher plate is in contact with the filter plate.

[0008] Preferably, the side wall of the tilting frame is provided with a connecting rod moving groove which passes through the wall of the processing box, the connecting rod passes through the connecting rod moving groove and is fixed to the output end of the electric push rod, the gear is located inside the tilting frame and meshes with the tooth plate, a sealing plate is installed outside the tilting frame, the sealing plate is provided with a moving gap, the mounting rod passes through the moving gap, and the sleeve is located outside the moving gap.

[0009] Preferably, the cleaning device includes a storage box fixed in the middle of the filter device, a water distribution tank is fixed on the storage box, the water distribution tank and the cleaning pipe are fixed and connected, the filter plate is provided with an extension plate, the extension plate is fixed in the storage box, one end of the inclined frame extends into the storage box, the connecting rod moving groove passes through the storage box wall, the oil cleaning roller is located in the storage box when not in operation, the extension plate is provided with a flapping groove, and a plurality of flapping rods are installed in the flapping groove.

[0010] Preferably, clean water troughs connected to the storage box are provided on both sides of the water distribution tank, a trapezoidal seat is fixed in the middle of the water distribution tank, the clean water trough is located above the extension plate, a connecting pipe is provided in the trapezoidal seat, the connecting pipe and the cleaning pipe are located on the same horizontal line, and the connecting pipe is connected to the storage box fixed with the filter device below.

[0011] Preferably, the treatment box is provided with a cleaning pipe and a sewage pipe, the cleaning pipe is connected to the cleaning device, the discharge port of the sewage pipe is located above the filter plate, the treatment box is provided with an electric door and a discharge chamber, the sewage pipe is connected to a sewage junction box fixed on the treatment box, an inclined seat is provided in the sewage junction box, a sewage drain trough is provided at the end of the inclined seat and is opened on the sewage junction box, the sewage drain trough is connected to the treatment box and is located above the filter plate.

[0012] Preferably, a kitchen sink is provided on the top of the treatment box, a cleaning port and a sewage outlet are provided in the kitchen sink, the cleaning port is connected to the cleaning pipe, the sewage outlet is connected to the sewage pipe, a discharge port is opened on the wall of the treatment box, the electric door is installed in the discharge port, a dirt box is fixed outside the treatment box, the discharge port is connected to the dirt box, the treatment box is provided with a box door, the box door is installed with a sealing gasket and a sealing strip, and the discharge chamber includes a discharge pipe.

[0013] A method for using a rural domestic sewage treatment device comprises the following steps:

[0014] S1: Pour the sewage containing residue into the sewage outlet, the sewage flows into the sewage junction box through the sewage pipe, the sewage flows along the inclined seat in the sewage junction box, and finally is discharged from the sewage trough into the treatment box;

[0015] S2: The sewage entering the treatment box falls onto the filter plate, which filters the sewage. The residue after filtration will be on the surface of the filter plate. The filtered sewage falls into the discharge chamber and is discharged out of the treatment box through the discharge pipe;

[0016] S3: When the sewage is discharged, clean water is continuously added to the cleaning port. The clean water contains detergent. The clean water will flow into the water distribution box through the cleaning pipe. Part of the clean water will flow into the storage box below through the connecting pipe, and part of the clean water will be diverted to the clean water tank through the trapezoidal seat. Then the clean water enters the storage box, and the oil-absorbing sponge sleeve will absorb the clean water. At this time, the electric push rod is started to push the oil-cleaning roller to roll on the filter plate, and the residue pushing plate can scrape and push the residue on the filter plate. At this time, the electric door is opened to discharge the residue into the dirt box, so that the bristles can clean the filter plate, and the oil-absorbing sponge sleeve and the activated carbon bag absorb the oil stains;

[0017] S4: The oil cleaning roller moves back and forth. When the oil cleaning roller moves to the beating groove, the extension plate removes the residue sticking to the bristles. As clean water is continuously added, the filter plate is cleaned and the oil is discharged. Then the oil cleaning roller returns to the storage box, the addition of clean water stops, and the operation is completed.

[0018] Compared with the existing technology, the beneficial effects of the present invention are: this scheme, through the provision of the oil cleaning device, can quickly and efficiently clean the filter device after filtering, so that the oil stains can be discharged in time, and the oil cleaning roller is rolled on the filter plate, the filter plate can be cleaned by the bristles, the oil stains can be absorbed by the oil-absorbing sponge sleeve, and the oil cleaning roller can be cleaned in time, thereby ensuring the cleanliness of subsequent operations, so that the filter plate will not breed a large number of bacteria due to oil stains during long-term use, and the treatment effect of the device is improved. In addition, the structure of this scheme is simple and conforms to the usage habits of the kitchen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the installation structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the processing box of the present invention;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure from another perspective;

[0022] Figure 4 It is a structural schematic diagram of the oil cleaning device of the present invention;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the cleaning device of the present invention;

[0024] Figure 6It is a structural schematic diagram of the oil-cleaning roller of the present invention;

[0025] Figure 7 It is a structural schematic diagram of the water distribution tank of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the filter plate of the present invention.

[0027] Reference numerals: 1, treatment box; 2, filtering device; 3, oil cleaning device; 4, cleaning device; 21, filter plate; 22, extension plate; 23, beating groove; 24, beating rod; 31, oil cleaning roller; 311, roller frame; 312, oil absorption sponge sleeve; 313, brush; 314, activated carbon bag; 32, slag push plate; 33, mounting rod; 34, gear; 35, connecting rod; 36, shaft sleeve; 37, electric push rod; 38, tilting frame; 39, tooth plate; 40 , connecting rod moving groove; 41, storage box; 42, water distribution tank; 43, cleaning sink; 44, trapezoidal seat; 45, connecting pipe; 100, cleaning pipe; 200, sewage pipe; 300, sewage junction box; 400, tilting seat; 500, sewage trough; 600, electric door; 601, waste box; 700, kitchen sink; 800, box door; 801, sealing gasket; 802, sealing strip; 900, discharge chamber; 901, discharge pipe; 1000, sealing plate;. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See attached Figure 1-Figure 8 A rural domestic sewage treatment device and a method of use, comprising a treatment box 1, wherein at least two filter devices 2 distributed up and down are installed in the treatment box 1, wherein the filter device 2 comprises two filter plates 21 symmetrically arranged, and the diameter of the filter holes of the upper filter plate 21 is larger than the diameter of the filter holes of the lower filter plate 21, a cleaning device 4 is fixed in the middle of the filter device 2, and an oil cleaning device 3 is arranged in the cleaning device 4, the treatment box 1 is provided with a cleaning pipe 100 and a sewage pipe 200, the cleaning pipe 100 is connected with the cleaning device 4, and the discharge port of the sewage pipe 200 is located above the filter plate 21, and the treatment box 1 is provided with an electric door 600 and a discharge chamber 900;

[0030] like Figure 2In this embodiment, two filtering devices 2 are installed in the treatment box 1. The two filtering devices 2 are distributed up and down in the treatment box 1. The filter hole diameter of the upper filter plate 21 is larger than that of the lower one. This makes it possible for when the sewage enters the treatment box 1 through the sewage pipe 200, it will be filtered in stages through the upper and lower filtering devices 2, thereby ensuring the filtering effect. After filtration, the dirt is discharged from the electric door 600, and the sewage falls into the discharge chamber 900 for discharge.

[0031] Both sides of the oil cleaning device 3 are provided with oil cleaning rollers 31 that can move along the surface of the filter plate 21, and also include a slag pushing plate 32 installed on the oil cleaning roller 31. Both sides of the filter plate 21 are provided with an inclined frame 38 fixed in the processing box 1. The inclined frame 38 is installed with tooth plates 39 distributed up and down. Gears 34 are fixed at both ends of the oil cleaning roller 31. The gears 34 and the tooth plates 39 are meshed, so that the oil cleaning roller 31 rolls along the filter plate 21.

[0032] The oil cleaning roller 31 comprises a roller frame 311 , an outer cover of the roller frame 311 is provided with an oil absorbing sponge sleeve 312 , the oil absorbing sponge sleeve 312 is provided with bristles 313 , and an activated carbon bag 314 in contact with the oil absorbing sponge sleeve 312 is fixed inside the roller frame 311 .

[0033] After the sewage is discharged, the oil and some dirt residues in the sewage will adhere to the filter plate 21. The rolling of the oil cleaning roller 31 will make the slag pushing plate 32 move along the filter plate 21, which can scrape and push the residues. The oil cleaning roller 31 can brush the oil and residues in the filter holes of the filter plate 21 through the bristles 313, and can absorb the oil stains through the oil absorbing sponge sleeve 312. The oil stains on the oil absorbing sponge sleeve 312 will be absorbed by the activated carbon bag 314, so that the filter plate 21 can be kept clean and will not breed a large number of bacteria due to the oil stains during long-term use.

[0034] Furthermore, when the oil cleaning device 3 is in operation, a mixture of detergent and water can be input through the cleaning device 4 to clean the oil cleaning roller 31 .

[0035] Specifically, Figure 3-Figure 6As shown, mounting rods 33 are fixed at both ends of the roller frame 311, gears 34 are fixed to the mounting rods 33, an electric push rod 37 is installed outside the processing box 1, a connecting rod 35 is rotatably installed on the mounting rod 33 on one side, the connecting rod 35 and the output end of the electric push rod 37 are fixedly connected, a shaft sleeve 36 is sleeved on the mounting rod 33, a slag pusher plate 32 is fixed between the two shaft sleeves 36, the slag pusher plate 32 is in contact with the filter plate 21, a connecting rod moving groove 40 penetrating the wall of the processing box 1 is provided on the side wall of the tilting frame 38, the connecting rod 35 penetrates the connecting rod moving groove 40 and is fixed to the output end of the electric push rod 37, the gear 34 is located in the tilting frame 38 and meshes with the tooth plate 39, a sealing plate 1000 is installed outside the tilting frame 38, the sealing plate 1000 is provided with a moving gap, the mounting rod 33 penetrates the moving gap, and the shaft sleeve 36 is located outside the moving gap.

[0036] By starting the electric push rod 37 to push the connecting rod 35 to move, the connecting rod 35 can drive the gear 34 to move, so that when the gear 34 moves, it will mesh with the tooth plate 39, and because the connecting rod 35 and the gear 34 are rotatably connected, they can be rotated, so that the oil cleaning roller 31 can roll during operation, so that the bristles 313 have the effect of cleaning the surface of the filter plate 21, and when the oil cleaning roller 31 moves, the slag pushing plate 32 will be pushed forward.

[0037] And it should be noted that if Figure 3 As shown, the lengths of the mounting rod 33 and the connecting rod 35 are long enough, and the connecting rod 35 is inserted into the bottom of the mounting rod 33 and is rotatably connected thereto, thereby ensuring that when the connecting rod 35 moves, the roller frame 311 can be driven to move as a whole, and the problem of jamming will not occur.

[0038] like Figure 4-Figure 8 As shown, the cleaning device 4 includes a storage box 41 fixed in the middle of the filter device 2, a water distribution box 42 is fixed on the storage box 41, the water distribution box 42 and the cleaning pipe 100 are fixed and connected, the filter plate 21 is provided with an extension plate 22, the extension plate 22 is fixed in the storage box 41, one end of the inclined frame 38 extends into the storage box 41, the connecting rod moving groove 40 passes through the wall of the storage box 41, the oil cleaning roller 31 is located in the storage box 41 when not in operation, the extension plate 22 is provided with a beating groove 23, and a plurality of beating rods 24 are installed in the beating groove 23.

[0039] In this embodiment, when the filtering device 2 is filtering sewage, the oil cleaning device 3 is in a non-operating state. At this time, the oil cleaning roller 31 is located in the storage box 41, which can ensure that it will not be contaminated when sewage enters. When operating, it will go out of the storage box 41 and return to the storage box 41 after its operation is completed. In the process of the oil cleaning roller 31 returning, residues will be attached to the bristles 313. When the bristles 313 move to the beating groove 23, as the bristles 313 are continuously rotated, they come into contact with the beating rod 24, so that the residues are knocked off, thereby achieving a cleaning effect.

[0040] In addition, clean water tanks 43 connected to the receiving box 41 are provided on both sides of the water distribution box 42, a trapezoidal seat 44 is fixed in the middle of the water distribution box 42, the clean water tank 43 is located above the extension plate 22, a connecting pipe 45 is provided in the trapezoidal seat 44, the connecting pipe 45 and the cleaning pipe 100 are located on the same horizontal line, and the connecting pipe 45 is connected to the receiving box 41 fixed to the filter device 2 below;

[0041] Specifically, the mixture of detergent and water forms cleaning water, which can be input from the cleaning pipe 100 into the water diversion tank 42. A portion of the cleaning water falls into the connecting pipe 45, and another portion falls onto the trapezoidal seat 44. The trapezoidal seat 44 can be used to divert the cleaning water so that each cleaning water flows into the cleaning water tank 43, so that the cleaning water in the cleaning water tank 43 will fall onto the oil-cleaning roller 31, and the oil-cleaning roller 31 can be cleaned by the cleaning water.

[0042] It should also be noted that the treatment box 1 is provided with a cleaning pipe 100 and a sewage pipe 200, the cleaning pipe 100 is connected to the cleaning device 4, the discharge port of the sewage pipe 200 is located above the filter plate 21, the treatment box 1 is provided with an electric door 600 and a discharge chamber 900, the sewage pipe 200 is connected to a sewage junction box 300 fixed on the treatment box 1, and the sewage junction box 300 is provided with an inclined seat 400, and the end of the inclined seat 400 is provided with a sewage trough 500 opened on the sewage junction box 300, and the sewage trough 500 is connected to the treatment box 1 and is located above the filter plate 21;

[0043] Sewage enters the sewage junction box 300 from the sewage pipe 200 , and the sewage will smoothly fall into the sewage trough 500 along the inclined seat 400 , and then be discharged into the treatment box 1 . The setting of the inclined seat 400 prevents sewage from remaining in the sewage junction box 300 .

[0044] Finally, if Figure 1-Figure 3 As shown, a kitchen sink 700 is provided on the top of the treatment box 1, a cleaning port 701 and a sewage outlet 702 are provided in the kitchen sink 700, the cleaning port 701 is connected to the cleaning pipe 100, the sewage outlet 702 is connected to the sewage pipe 200, a discharge port is opened on the wall of the treatment box 1, an electric door 600 is installed in the discharge port, a dirt box 601 is fixed outside the treatment box 1, the discharge port and the dirt box 601 are connected, the treatment box 1 is provided with a box door 800, the box door 800 is installed with a sealing gasket 801 and a sealing strip 802, and the discharge chamber 900 includes a discharge pipe 901.

[0045] In this embodiment, the box door 800 is fixed to the processing box 1 by bolts, so that the box door 800 can be removed and the processing box 1 can be opened, which is convenient for maintenance inside the processing box 1. The sealing gasket 801 and the sealing strip 802 ensure the sealing of the box door 800 after installation.

[0046] Figure 1 This is a specific installation diagram of the device in rural households. In rural life, a large amount of household sewage is generated in the kitchen, and the sewage contains a lot of food residues and a lot of oil stains;

[0047] Specifically, the treatment box 1 can be installed in a cabinet in a rural kitchen, and it is installed below the kitchen sink 700. The kitchen sink 700 is a common installation method. In this embodiment, the kitchen sink 700 is provided with a cleaning port 701 and a sewage outlet 702. The sewage outlet 702 can pour sewage containing residues. The cleaning port 701 is the inlet of the clean water in this solution, which is used after the sewage is filtered.

[0048] It should be noted that in other embodiments, in order to better fit the usage habits of washing dishes and vegetables in the kitchen, it can also be used in this way. Specifically: in household use, washing dishes or vegetables requires multiple times. A large amount of food waste will be generated during the first time. Sewage containing large food waste can be poured into the sewage outlet 702, so that it enters the treatment box 1 and is filtered through the filter device 2. With subsequent cleaning, the food waste has been cleaned up. At this time, detergent is added according to habit when washing dishes. Detergent water without dirt can enter from the sewage outlet 702. The detergent water has the effect of cleaning water, and the above-mentioned oil-cleaning roller 31 and the filter plate 21 can be cleaned. Therefore, this method is more in line with usage habits, and there is no need to use detergent separately. It is highly economical and easy to promote in rural areas.

[0049] It should also be noted that the cleaning port 701 and the sewage outlet 702 are both provided with sealing covers commonly found in vegetable sinks, which can be opened when in use, and a filter barrel commonly found in vegetable sinks is provided in the cleaning port 701 to prevent dirt from accidentally entering the cleaning device 4.

[0050] A method for using a rural domestic sewage treatment device comprises the following steps:

[0051] S1: Pour the sewage containing the residue into the sewage outlet 702, the sewage flows into the sewage junction box 300 through the sewage pipe 200, the sewage flows along the inclined seat 400 in the sewage junction box 300, and finally is discharged from the sewage trough 500 into the treatment box 1;

[0052] S2: The sewage entering the treatment box 1 falls onto the filter plate 21, and the filter plate 21 filters the sewage. The filtered residue will be on the surface of the filter plate 21. The filtered sewage falls into the discharge chamber 900 and is discharged from the treatment box 1 through the discharge pipe 901;

[0053] S3: When the sewage is discharged, clean water is continuously added to the cleaning port 701. The clean water contains detergent. The clean water flows into the water distribution box 42 through the cleaning pipe 100. A part of the clean water flows into the storage box 41 below through the connecting pipe 45, and a part of the clean water is diverted to the clean water tank 43 through the trapezoidal seat 44. Then the clean water enters the storage box 41, and the oil-absorbing sponge sleeve 312 absorbs the clean water. At this time, the electric push rod 37 is started to push the oil-cleaning roller 31 to roll on the filter plate 21, and the residue pushing plate 32 can scrape and push the residue on the filter plate 21. At this time, the electric door 600 is opened to discharge the residue into the dirt box 601, so that the bristles 313 can clean the filter plate 21, and the oil-absorbing sponge sleeve 312 and the activated carbon bag 314 absorb the oil stains;

[0054] S4: The oil cleaning roller 31 moves back and forth. When the oil cleaning roller 31 moves to the beating groove 23, the extension plate 22 removes the residue sticking to the bristles 313, and as the clean water is continuously added, the filter plate 21 is cleaned and the oil is discharged. Then the oil cleaning roller 31 returns to the storage box 41, the addition of clean water stops, and the operation is completed.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rural domestic sewage treatment device, characterized in that: The invention comprises a treatment box (1), wherein at least two filter devices (2) are installed in the treatment box (1) and are distributed in an upper and lower manner, wherein the filter device (2) comprises two filter plates (21) which are symmetrically arranged, and the diameter of the filter hole of the upper filter plate (21) is larger than the diameter of the filter hole of the lower filter plate (21), and a cleaning device (4) is fixed in the middle of the filter device (2), and an oil cleaning device (3) is arranged in the cleaning device (4); The oil cleaning device (3) is provided with an oil cleaning roller (31) movable along the surface of the filter plate (21) on both sides, and also includes a slag pushing plate (32) mounted on the oil cleaning roller (31). The filter plate (21) is provided with an inclined frame (38) fixed in the processing box (1) on both sides, and tooth plates (39) distributed up and down are installed in the inclined frame (38). Gears (34) are fixed at both ends of the oil cleaning roller (31). The gears (34) and the tooth plates (39) are meshed so that the oil cleaning roller (31) rolls along the filter plate (21). The oil cleaning roller (31) includes a roller frame (311), and an oil absorbing sponge sleeve (312) is provided on the roller frame (311). The oil absorbing sponge sleeve (312) is provided with bristles (313). An activated carbon bag (314) in contact with the oil absorbing sponge sleeve (312) is fixed in the roller frame (311).

2. A rural domestic sewage treatment device according to claim 1, characterized in that: Both ends of the roller frame (311) are fixed with mounting rods (33), and gears (34) are fixed to the mounting rods (33). An electric push rod (37) is installed outside the processing box (1). A connecting rod (35) is rotatably installed on one side of the mounting rod (33). The connecting rod (35) and the output end of the electric push rod (37) are fixedly connected. A shaft sleeve (36) is sleeved on the mounting rod (33), and a slag pusher plate (32) is fixed between the two shaft sleeves (36). The slag pusher plate (32) is in contact with the filter plate (21).

3. A rural domestic sewage treatment device according to claim 2, characterized in that: The side wall of the tilting frame (38) is provided with a connecting rod moving groove (40) penetrating the wall of the processing box (1); the connecting rod (35) penetrates the connecting rod moving groove (40) and is fixed to the output end of the electric push rod (37); the gear (34) is located in the tilting frame (38) and meshes with the tooth plate (39); a sealing plate (1000) is installed outside the tilting frame (38); the sealing plate (1000) is provided with a moving gap; the mounting rod (33) penetrates the moving gap; and the shaft sleeve (36) is located outside the moving gap.

4. A rural domestic sewage treatment device according to claim 3, characterized in that: The cleaning device (4) comprises a storage box (41) fixed in the middle of the filtering device (2), a water distribution box (42) fixed on the storage box (41), the water distribution box (42) and the cleaning pipe (100) are fixed and connected, the filtering plate (21) is provided with an extension plate (22), the extension plate (22) is fixed in the storage box (41), one end of the inclined frame (38) extends into the storage box (41), the connecting rod moving groove (40) penetrates the wall of the storage box (41), the oil cleaning roller (31) is located in the storage box (41) when not in operation, the extension plate (22) is provided with a beating groove (23), and a plurality of beating rods (24) are installed in the beating groove (23).

5. A rural domestic sewage treatment device according to claim 4, characterized in that: Clean water troughs (43) connected to the storage box (41) are provided on both sides of the water distribution box (42); a trapezoidal seat (44) is fixed in the middle of the water distribution box (42); the clean water trough (43) is located above the extension plate (22); a connecting pipe (45) is provided in the trapezoidal seat (44); the connecting pipe (45) and the cleaning pipe (100) are located on the same horizontal line; the connecting pipe (45) is connected to the storage box (41) fixed to the filter device (2) below.

6. A rural domestic sewage treatment device according to claim 1, characterized in that: The treatment box (1) is provided with a cleaning pipe (100) and a sewage pipe (200), the cleaning pipe (100) is connected to the cleaning device (4), the discharge port of the sewage pipe (200) is located above the filter plate (21), the treatment box (1) is provided with an electric door (600) and a discharge chamber (900), the sewage pipe (200) is connected to a sewage junction box (300) fixed on the treatment box (1), an inclined seat (400) is provided in the sewage junction box (300), a sewage discharge trough (500) opened on the sewage junction box (300) is provided at the end of the inclined seat (400), and the sewage discharge trough (500) is connected to the treatment box (1) and is located above the filter plate (21).

7. A rural domestic sewage treatment device according to claim 6, characterized in that: A kitchen sink (700) is provided on the top of the treatment box (1). A cleaning port (701) and a sewage outlet (702) are provided in the kitchen sink (700). The cleaning port (701) is connected to a cleaning pipe (100), and the sewage outlet (702) is connected to a sewage pipe (200). A discharge port is provided on the wall of the treatment box (1). The electric door (600) is installed in the discharge port. A sewage box (601) is fixed outside the treatment box (1). The discharge port and the sewage box (601) are connected. The treatment box (1) is provided with a box door (800). The box door (800) is installed with a sealing gasket (801) and a sealing strip (802). The discharge chamber (900) includes a discharge pipe (901).

8. A method for using a rural domestic sewage treatment device, using a rural domestic sewage treatment device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: pouring the sewage containing the residue into the sewage outlet (702), the sewage flows into the sewage junction box (300) through the sewage pipe (200), the sewage flows along the inclined seat (400) in the sewage junction box (300), and finally is discharged from the sewage trough (500) into the treatment box (1); S2: The sewage entering the treatment box (1) falls onto the filter plate (21), and the filter plate (21) filters the sewage. The residue after filtration will be on the surface of the filter plate (21). The filtered sewage falls into the discharge chamber (900) and is discharged outside the treatment box (1) through the discharge pipe (901); S3: After the sewage is discharged, clean water is continuously added to the cleaning port (701). The clean water contains detergent. The clean water flows into the water distribution box (42) through the cleaning pipe (100). A part of the clean water flows into the storage box (41) below through the connecting pipe (45). A part of the clean water flows into the cleaning water tank (43) through the trapezoidal seat (44). Then, the clean water enters the storage box (41). The oil-absorbing sponge sleeve (312) absorbs the clean water. At this time, the electric push rod (37) is started to push the oil-cleaning roller (31) to roll on the filter plate (21). The residue pushing plate (32) can scrape and push the residue on the filter plate (21). At this time, the electric door (600) is opened to discharge the residue into the dirt box (601), so that the bristles (313) can clean the filter plate (21). The oil-absorbing sponge sleeve (312) and the activated carbon bag (314) absorb the oil stains. S4: The oil-cleaning roller (31) is moved back and forth. When the oil-cleaning roller (31) moves to the beating groove (23), the extension plate (22) removes the residue sticking to the bristles (313). As the clean water is continuously added, the filter plate (21) is cleaned and the oil is discharged. Then, the oil-cleaning roller (31) is returned to the storage box (41), and the addition of clean water is stopped. The operation is completed.

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