Micro-water-flushing harmless sanitary toilet

Abstract

The invention provides a micro-water-flushing harmless sanitary toilet, and belongs to the technical field of toilets. The blow-off channel and the micro water flushing device are both connected with the toilet main body, the upper end of the blow-off pipe is connected with the blow-off channel, the lower end of the blow-off pipe is connected with the harmless septic tank, and the blow-off pipe is connected with an air draft pipe close to an inlet of the harmless septic tank; a water inlet is formed in the rear side of an inner cavity of the toilet bowl body and connected with a micro water flushing device. The harmless septic tank is located on the inclined side or the rear side of the toilet stool body and comprises a pre-fermentation tank, a harmless treatment tank and a liquid fertilizer storage tank which are sequentially arranged. The blow-off pipe adopts a straight pipe type design and is obliquely connected into the harmless septic tank; the micro water flushing device adopts an air pressure type flushing design, and the barrel body and the barrel cover are connected through an air cylinder assembly. The device has the advantages that water resources are saved, excrement odor is discharged, excrement adhesion of the toilet is reduced, black water is harmless, high-concentration liquid fertilizer is obtained, installation and maintenance are easy and convenient, the black water is harmless, and the cost is low, and the device is suitable for being used and popularized in rural areas.

Description

Technical Field

[0001] The invention relates to the technical field of toilets, and in particular to a micro-water flushing harmless sanitary toilet. Background Art

[0002] With the development of China's rural areas and the acceleration of urbanization, rural sanitary environment issues have received more and more attention. Traditional dry toilets have been regarded as a major hidden danger to rural environmental sanitation due to their unsanitary and easy breeding of bacteria and mosquitoes and flies. There is no toilet in the dry toilet pit, and feces and urine are easy to splash out. Users are easily exposed to harmful substances, which is not conducive to human health. The "Rural Household Toilet Hygiene Standard" (GB19379-2012) proposes that toilet pits should use toilets to avoid exposing feces. The black water (feces, urine sewage) of traditional rural dry toilets is directly used by farmers after overflow discharge from septic tanks. The treatment capacity of simple septic tanks and biogas tanks is low, and the harmless sanitation requirements cannot be guaranteed. The high concentrations of nitrogen, phosphorus, potassium and other components and some harmful substances will cause serious pollution to the soil, groundwater and surrounding environment. After effective fermentation and harmlessness, black water can be used as liquid fertilizer for resource utilization to supplement nutrients for crops. In addition, due to the lack of exhaust and deodorization facilities, the smell of feces and urine in dry toilets is not easy to be discharged, causing discomfort to users. Therefore, traditional dry toilets can no longer meet the modern people's needs for a sanitary environment, and rural toilet reform has become an important measure to improve rural environmental sanitation and improve people's quality of life.

[0003] There are still many problems with the existing water toilets in rural areas. If the sewage pipes in water toilets are not designed properly, they are prone to blockage or leakage, making them difficult to repair. The main body of the water toilet is easily sticky with feces, and usually requires a large amount of water to flush, which wastes water resources and brings great difficulties to black water treatment. The use of micro-flushing equipment can save water resources. The traditional sewage treatment method is to collect and treat it uniformly through a pipe network. This method is often too complicated in structure, and the operation and maintenance costs are relatively high. This treatment method is neither economical nor easy to operate, and it is a considerable burden for farmers. These problems limit the promotion and application of water toilets in rural areas. Summary of the invention

[0004] In order to solve the problems in the prior art, the present invention aims to provide a micro-water flushing harmless sanitary toilet. While saving water resources, expelling fecal odor, reducing fecal stickiness in the toilet and rendering black water harmless, the toilet also has the advantages of easy installation and maintenance and low cost for black water harmlessness, and is very suitable for promotion and use in rural areas.

[0005] The present invention provides a micro-flushing harmless sanitary toilet, comprising: a toilet body, a sewage channel, a sewage pipe, a micro-flushing device, an air extraction pipe and a harmless septic tank, wherein the sewage channel and the micro-flushing device are both connected to the toilet body, the upper end of the sewage pipe is connected to the sewage channel, the lower end of the sewage pipe is connected to the harmless septic tank, and the sewage pipe is provided with an opening near the entrance of the harmless septic tank for connecting the air extraction pipe;

[0006] A water inlet is arranged at the rear side of the inner cavity of the toilet body, and the water inlet is connected to the micro-flushing device; the harmless septic tank is located at the oblique side or the rear side of the toilet body, and the harmless septic tank comprises a pre-fermentation tank, a harmless treatment tank and a liquid fertilizer storage tank which are arranged in sequence; the pre-fermentation tank is added with liquid fermentation bacteria agent; the pre-fermentation tank and the harmless treatment tank are added with spherical biological fillers; the liquid fermentation bacteria agent contains Firmicutes, and at least one of Bacteroidetes and Proteobacteria, wherein the abundance of Firmicutes reaches more than 50%;

[0007] The sewage pipe adopts a straight pipe design and is connected to the harmless septic tank at an angle;

[0008] The micro-water flushing device adopts a pneumatic flushing design, and comprises a barrel body and a barrel cover, wherein the barrel cover is provided with an air cylinder assembly, and the barrel body and the barrel cover are connected via the air cylinder assembly.

[0009] Preferably, the harmless septic tank is further provided with a secondary fermentation tank between the pre-fermentation tank and the harmless treatment tank, and the secondary fermentation tank is also added with spherical biological fillers.

[0010] Preferably, the inner cavity of the toilet body is designed in a funnel shape, and the sewage discharge channel is designed in a cylindrical straight pipe shape.

[0011] Preferably, the diameters of the sewage channel and the sewage pipe are 100-170 mm.

[0012] Preferably, the diameter of the sewage channel and the sewage pipe is 160 mm.

[0013] Preferably, the sewage pipe is inserted into the harmless septic tank at an angle of 15 to 60 degrees.

[0014] Preferably, a toilet ring is provided above the toilet body, a toilet cover is provided outside the toilet ring, an inner sleeve is provided at the bottom end of the toilet ring, an outer sleeve is provided at the bottom end of the toilet cover, a connecting support is provided at the lower end of the inner sleeve, the inner sleeve and the outer sleeve are fixed by a connecting shaft; a screw is provided at the lower end of the connecting support.

[0015] Preferably, spiral structures are provided at both ends of the connecting shaft, and the spiral structures are equipped with nuts of corresponding sizes for fixing the outer sleeve.

[0016] Preferably, the barrel cover is provided with a fixing ring, a water filling port and a rotating cover, a water outlet is opened at the side end of the barrel cover, one end of the water outlet is connected to a straw, the other end of the water outlet is connected to a connecting pipe, the straw and the connecting pipe are fixed to the barrel cover through a fixing assembly, the straw is located inside the barrel body, and the other end of the connecting pipe is connected to the water inlet on the toilet body.

[0017] Preferably, a protrusion is connected to the rotating cover.

[0018] Preferably, the air cylinder assembly includes an air intake pipe, a piston, a push rod, a spring, glass beads, and a perforated partition. The air intake pipe is connected between the barrel cover and the barrel body, one end of the air intake pipe is fixed to the fixing ring, the piston is arranged in the air intake pipe, and fits tightly therewith and can slide up and down, the upper end of the piston is connected to the push rod, the lower end of the air intake pipe is connected to the spring, the glass beads are placed on the upper end of the spring, and the perforated partition is placed on the upper end of the glass beads to limit the glass beads between the spring and the perforated partition.

[0019] Preferably, the rear end of the toilet seat is extended outward, and a fixing hole is provided on each side of the extension portion, and the distance between the two fixing holes is consistent with the distance between the two screws.

[0020] Preferably, the air inlet pipe has an air inlet opening 3 to 8 cm away from the upper end of the pipe opening.

[0021] Preferably, a baffle cover is provided at the water inlet, and the lower half of the baffle cover is open.

[0022] Preferably, the barrel body is 40-50 cm deep, with an effective volume of 15-20 L, and the amount of water discharged each time is pressed is 800-1000 mL.

[0023] Preferably, the diameter of the air extraction duct is 10 to 30 cm, the height is 2 to 3 m, and the top is provided with a hood.

[0024] Preferably, the toilet body and the sewage channel are both made of ceramic, and the ceramic surface is coated with anti-stick glaze.

[0025] Preferably, the fermentation agent contains Firmicutes, and at least one of Bacteroidetes and Proteobacteria, wherein the abundance of Firmicutes is more than 50%.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. The sewage channel of the present invention adopts a cylindrical straight pipe design. The toilet body and the sewage channel are made of ceramic, and the ceramic surface is coated with anti-stick glaze. The sewage pipe adopts a straight pipe design and is tilted to the harmless septic tank. The tilt angle is 15 to 60 degrees, which effectively prevents feces from splashing.

[0028] 2. The diameter of the sewage channel and sewage pipe of the present invention is 160mm, and the water output each time is pressed is about 800-1000ml, which greatly reduces the water demand for flushing toilets.

[0029] 3. The sewage pipe of the present invention is connected to the harmless septic tank, and 300-500mL of liquid fermentation bacteria are added to the first compartment of the harmless septic tank. The fermentation bacteria used contain Firmicutes, Bacteroidetes, Proteobacteria, etc., among which the abundance of Firmicutes reaches more than 50%. The application of the harmless bacteria agent can obtain high-quality liquid fertilizer, realize the resource utilization of black water at low cost, effectively utilize the rich organic matter and nitrogen, phosphorus and other resources in the black water, and reduce the breeding of mosquitoes and flies, which is clean and hygienic.

[0030] 4. The sewage pipe of the present invention is connected to the extraction duct by opening a hole near the harmless septic tank. The diameter of the extraction duct is set to 10-30cm and the height is set to 2-3m, which can discharge odor and optimize the toilet environment. The top of the extraction duct is provided with an extraction hood. The shape of the hood is not limited and can be square, spherical, etc., which can ventilate the toilet and reduce dust falling into the extraction duct.

[0031] 5. The micro-water flushing device of the present invention adopts a pneumatic flushing design, which requires a small amount of flushing water. The jet force generated by the water improves the flushing efficiency and realizes micro-water flushing of the toilet. The water output each time is pressed is about 800 to 1000 mL, which reduces the amount of water entering the septic tank, prolongs the fermentation time, and enhances the harmlessness effect.

[0032] 6. The micro-water flushing device of the present invention is provided with a water injection port and a rotating cover on the barrel cover, which is convenient for replenishing water and preventing fallen leaves and dust from entering the barrel body, making water addition convenient and quick. Open the rotating cover to add water for flushing toilets, and the shielding of the barrel cover reduces the splashing of water when adding water. The large volume design of the barrel body can store a large amount of gray water or collected rainwater. The water for flushing toilets includes rainwater recycled from the water injection port and wastewater reuse, realizing the conservation and reuse of water resources, saving water resources.

[0033] 7. The water inlet of the toilet body of the present invention is located at the rear side of the toilet body, and a baffle cover is installed at the water inlet, and the lower half of the baffle cover is open to increase the flushing force and the area of ​​water flowing through the toilet body.

[0034] 8. The inner cavity of the toilet body of the present invention adopts a funnel-shaped design. After pressing the flush button, the water flows in a vortex shape to cover the entire inner cavity of the toilet, rotates along the toilet body and flows into the sewage channel to flush the sticky feces and urine on the toilet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a left view of a micro-water flushing harmless sanitary toilet according to an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the structure of a harmless septic tank according to an embodiment of the present invention;

[0037] Figure 3 A schematic diagram of the structure of a toilet seat and a toilet cover according to an embodiment of the present invention;

[0038] Figure 4 An exploded view of a barrel cover of a micro-water flushing device according to an embodiment of the present invention;

[0039] Figure 5 The figure is a schematic diagram of the internal structure of a micro-water flushing device according to an embodiment of the present invention.

[0040] In the figure: 1-main body, 2-sewage channel, 3-sewage pipe, 4-micro-water flushing device, 5-extraction duct, 6-harmless septic tank, 7-barrel body, 8-barrel cover, 9-fixing ring, 10-water filling port, 11-rotating cover, 12-water outlet, 13-suction straw, 14-connecting pipe, 15-water inlet, 16-biological filler, 17-opening, 18-toilet ring, 19-toilet cover, 20-connecting support, 21-fixing hole, 22-inlet Air port, 23-inner sleeve, 24-outer sleeve, 25-connecting shaft, 26-bump, 27-screw rod, 28-intake pipe, 29-piston, 30-push rod, 31-spring, 32-glass beads, 33-perforated partition, 34-spiral structure, 35-nut, 36-wind hood, 37-choke cover, 38-fixing component, 39-fermentation tank, 40-harmless treatment tank, 41-liquid fertilizer storage tank, 42-secondary fermentation tank. DETAILED DESCRIPTION

[0041] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0042] The present invention provides a micro-water flushing harmless sanitary toilet, comprising: the present invention provides a micro-water flushing harmless sanitary toilet, comprising: a toilet body 1, a sewage channel 2, a sewage pipe 3, a micro-water flushing device 4, an air extraction pipe 5 and a harmless septic tank 6, the sewage channel 2 and the micro-water flushing device 4 are both connected to the toilet body 1, the upper end of the sewage pipe 3 is connected to the sewage channel 2, the lower end of the sewage pipe 3 is connected to the harmless septic tank 6, and the sewage pipe 3 is provided with an opening 17 near the entrance of the harmless septic tank 6 to connect the air extraction pipe 5;

[0043] A water inlet 15 is arranged at the rear side of the inner cavity of the toilet body 1, and the water inlet 15 is connected to the micro-flushing device 4; the harmless septic tank 6 is located at the oblique side or the rear side of the toilet body 1, and the harmless septic tank 6 comprises a pre-fermentation tank 39, a harmless treatment tank 40 and a liquid fertilizer storage tank 41 arranged in sequence; the pre-fermentation tank 39 is added with liquid fermentation bacteria; the pre-fermentation tank 39 and the harmless treatment tank 40 are added with spherical biological fillers; the liquid fermentation bacteria contain Firmicutes, and at least one of Bacteroidetes and Proteobacteria, wherein the abundance of Firmicutes reaches more than 50%;

[0044] The sewage pipe 3 adopts a straight pipe design and is obliquely connected to the harmless septic tank 6;

[0045] The micro-water flushing device 4 adopts a pneumatic flushing design, including a barrel body 7 and a barrel cover 8. The barrel cover 8 is provided with an air cylinder assembly, and the barrel body 7 and the barrel cover 8 are connected through the air cylinder assembly.

[0046] According to a specific embodiment of the present invention, the harmless septic tank 6 is further provided with a secondary fermentation tank 42 between the pre-fermentation tank 39 and the harmless treatment tank 40 , and the secondary fermentation tank 42 is also added with spherical biological fillers 16 .

[0047] According to a specific embodiment of the present invention, the inner cavity of the toilet body 1 is designed in a funnel shape, and the sewage discharge channel 2 is designed in a cylindrical straight pipe shape.

[0048] According to a specific embodiment of the present invention, the diameters of the sewage channel 2 and the sewage pipe 3 are 100-170 mm.

[0049] According to a specific embodiment of the present invention, the diameters of the sewage channel 2 and the sewage pipe 3 are 160 mm.

[0050] According to a specific embodiment of the present invention, the sewage pipe 3 is inserted into the harmless septic tank 6 at an angle of 15 to 60 degrees.

[0051] According to a specific embodiment of the present invention, a toilet ring 18 is provided above the toilet body 1, a toilet cover 19 is provided on the outside of the toilet ring 18, an inner sleeve 23 is provided at the bottom end of the toilet ring 18, an outer sleeve 24 is provided at the bottom end of the toilet cover 19, a connecting support 20 is provided at the lower end of the inner sleeve 23, the inner sleeve 23 and the outer sleeve 24 are fixed by a connecting shaft 25; a screw 27 is provided at the lower end of the connecting support 20.

[0052] According to a specific embodiment of the present invention, spiral structures 34 are provided at both ends of the connecting shaft 25 , and the spiral structures 34 are equipped with nuts 35 of corresponding sizes for fixing the outer sleeve 24 .

[0053] According to a specific embodiment of the present invention, the barrel cover 8 is provided with a fixing ring 9, a water filling port 10 and a rotating cover 11, and a water outlet 12 is opened at the side end of the barrel cover 8, one end of the water outlet 12 is connected to a straw 13, and the other end of the water outlet 12 is connected to a connecting pipe 14, the straw 13 and the connecting pipe 14 are fixed to the barrel cover 8 through a fixing component 38, the straw 13 is located inside the barrel body 7, and the other end of the connecting pipe 14 is connected to the water inlet 15 on the toilet body 1.

[0054] According to a specific embodiment of the present invention, a protrusion 26 is connected to the rotating cover 11 .

[0055] According to a specific embodiment of the present invention, the air cylinder assembly includes an air intake pipe, a piston, a push rod, a spring, glass beads, and a perforated partition plate. The air intake pipe 28 is connected between the barrel cover 8 and the barrel body 7. One end of the air intake pipe 28 is fixed to the fixing ring 9. The piston 29 is arranged in the air intake pipe 28 and fits tightly therewith and can slide up and down. The upper end of the piston 29 is connected to the push rod 30, and the lower end of the air intake pipe is connected to the spring 31. The glass beads 32 are placed on the upper end of the spring 31, and the perforated partition plate 33 is placed on the upper end of the glass beads 32, which is used to limit the glass beads 32 between the spring 31 and the perforated partition plate 33.

[0056] According to a specific embodiment of the present invention, the toilet body 1 extends outward from the rear end of the seat, and a fixing hole 21 is provided on each side of the extension portion. The distance between the two fixing holes 21 is consistent with the distance between the two screws 27.

[0057] According to a specific embodiment of the present invention, the air inlet 22 is opened at a position 3 to 8 cm away from the upper end of the air inlet pipe 28 .

[0058] According to a specific embodiment of the present invention, a baffle cover 37 is provided at the water inlet 15, and the lower half of the baffle cover 37 is open.

[0059] According to a specific embodiment of the present invention, the barrel body is 40 to 50 cm deep, with an effective volume of 15 to 20 L, and the amount of water discharged each time the barrel is pressed is 800 to 1000 mL.

[0060] According to a specific embodiment of the present invention, the diameter of the air extraction tube 5 is 10 to 30 cm, the height is 2 to 3 m, and a wind cap 36 is installed at the top.

[0061] According to a specific embodiment of the present invention, the toilet body 1 and the sewage channel 2 are both made of ceramics, and the surface of the ceramics is coated with anti-sticking glaze.

[0062] Example 1

[0063] This embodiment provides a micro-flushing harmless toilet, such as Figure 1 and Figure 4 As shown, it includes a toilet body 1, a sewage channel 2, a sewage pipe 3, a micro-water flushing device 4, an air extraction pipe 5 and a harmless septic tank 6, the sewage channel 2 and the micro-water flushing device 4 are connected to the toilet body 1, the upper end of the sewage pipe 3 is connected to the sewage channel 2, the lower end of the sewage pipe 3 is connected to the harmless septic tank 6, and the air extraction pipe 5 is connected to the opening 17 of the sewage pipe 3 near the entrance of the harmless septic tank 6; a water inlet 15 is arranged at the rear side of the inner cavity of the toilet body 1, and the water inlet 15 is connected to the micro-water flushing device 4. Device 4; the harmless septic tank 6 is located at the oblique side or rear side of the toilet body 1, and the harmless septic tank 6 includes a pre-fermentation tank 39, a harmless treatment tank 40, a secondary fermentation tank 42 and a liquid fertilizer storage tank 41 arranged in sequence; the pre-fermentation tank 39 is added with liquid fermentation bacteria; the pre-fermentation tank 39, the secondary fermentation tank 42 and the harmless treatment tank 40 are added with spherical biological fillers, and the liquid fermentation bacteria contain Firmicutes, and at least one of Bacteroidetes and Proteobacteria, wherein the abundance of Firmicutes reaches more than 50%;

[0064] The sewage pipe 3 adopts a straight pipe design and is obliquely connected to the harmless septic tank 6;

[0065] The micro-water flushing device 4 adopts a pneumatic flushing design, including a barrel body 7 and a barrel cover 8. The barrel cover 8 is provided with an air cylinder assembly, and the barrel body 7 and the barrel cover 8 are connected through the air cylinder assembly.

[0066] The barrel cover 8 is arranged on the top of the micro-water flushing device 4. The barrel cover 8 is provided with a water inlet 10 and a rotating cover 11. The water inlet 15 is used to collect precipitation or gray water on rainy days. The rotating cover 11 is used to prevent fallen leaves and dust from entering the barrel on sunny days. The lid is opened and closed by pushing the small protrusion 26 on the rotating cover 11 to rotate the lid.

[0067] A water outlet 12 is opened on the side of the barrel cover 8, a water inlet 15 is opened on the rear side of the toilet body 1, and both ends of a connecting pipe 14 are respectively connected to the water outlet 12 and the water inlet 15, and flushing water enters the toilet body 1 from the micro-water flushing device 4 through the connecting pipe 14.

[0068] The water in the connecting pipe 14 enters the water inlet 15, changes its flow direction under the action of the flow blocking cover 37, flows through the inner cavity of the toilet body in a vortex shape, and flushes the sticky feces in the inner cavity of the toilet. The flushing water is discharged into the harmless septic tank 6 along the sewage channel 2 and the sewage pipe 3, and the diameter of the sewage channel 2 and the sewage pipe 3 is 160mm.

[0069] The sewage pipe 3 is connected to the harmless septic tank 6 at an angle of 15 to 60 degrees. An opening is set near the entrance of the harmless septic tank 6 to connect the air extraction pipe 5, and the odor of the toilet is effectively removed through the pressure difference between indoor and outdoor. The air extraction pipe 5 is installed at the upper opening of the sewage pipe 3. The diameter of the air extraction pipe is 10 to 30 cm, the height is 2 to 3 meters, and a wind cap is installed on the top of the air extraction pipe. The air extraction pipe 5 and the harmless septic tank 6 are located outdoors, and the micro-flushing device 4 can be set below the toilet body 1.

[0070] Example 2

[0071] In this embodiment, Figure 4 and Figure 5 As shown, the barrel body 7 of the micro-water flushing device 4 has a height of 40 to 50 cm and a volume of 15 to 20 L. A barrel cover 8 is disposed at the upper end of the barrel body 7 , and a fixing ring 9 is disposed on the barrel cover 8 for fixing the air inlet pipe 28 .

[0072] A piston 29 is provided in the air inlet pipe 28, which slides up and down in close contact with the piston 29. The upper end of the piston 29 is connected to a push rod 30. By pressing the push rod 30 to increase the pressure in the barrel, the spring 31 is compressed downward under the action of pressure, the glass beads 32 are separated from the perforated partition 33, and the gas enters the barrel from the gap; when the push rod 30 is pulled upward, the spring 31 is reset to support the glass beads 32, and the glass beads 32 are seamlessly fitted with the perforated partition 33, effectively preventing gas leakage in the barrel body 7. When the piston 29 is pulled above the air inlet 22, air enters the air inlet pipe 28 through the air inlet 22. Under the action of the gas pressure, the water in the barrel enters the toilet body 1 through the suction pipe 13 and the connecting pipe 14.

[0073] Example 3

[0074] In this embodiment, if Figure 2 As shown, the harmless septic tank 6 adopts a three-chamber black water treatment tank, and the first, second and third compartments of the septic tank are used as a black water pre-fermentation tank 39, a harmless treatment tank 40 and a liquid fertilizer storage tank 41 respectively.

[0075] The spherical biological filler 16 is added to the black water pre-fermentation tank 39 and the harmless treatment tank 40. At the same time, 300-500 mL of liquid fermentation agent is added to the black water pre-fermentation tank 39 of the black water treatment tank. The liquid fermentation agent used contains Firmicutes, and at least one of Bacteroidetes and Proteobacteria, among which the abundance of Firmicutes reaches more than 50%.

[0076] The black water passes through the pre-fermentation tank 39 and undergoes a hydrolysis reaction under the action of the fermentation bacteria, with a residence time of not less than 10 days. Solid matter and macromolecular organic matter are preliminarily decomposed into soluble matter and small molecular organic matter, thereby realizing the pre-fermentation of black water; the black water passes through the harmless treatment tank 40 and stays for not less than 5 days. Fecal coliform bacteria, salmonella and other pathogenic microorganisms in the black water are inactivated, thereby realizing the harmlessness of the black water; the black water passes through the liquid fertilizer storage tank 41 and stays for not less than 15 days. The treated black water becomes liquid fertilizer, which is stored in this grid and scooped by farmers themselves and applied to farmland for resource utilization.

[0077] Example 4

[0078] In another specific embodiment, Figure 1 As shown, the harmless septic tank 6 adopts a four-chamber black water treatment tank, and the harmless septic tank 6 is provided with a pre-fermentation tank 39, a secondary fermentation tank 42, a harmless treatment tank 40 and a liquid fertilizer storage tank 41 in sequence.

[0079] In the four-cell blackwater treatment tank, the volume ratio of the pre-fermentation tank 39, the secondary fermentation tank 42, the harmless treatment tank 40 and the liquid fertilizer storage tank 41 is 2:1:1:2, and the accumulated volume of the spherical biological filler 16 added to the pre-fermentation tank 39, the secondary fermentation tank 42 and the harmless treatment tank 40 accounts for 50% to 80% of the effective volume of the cell.

[0080] The black water passes through the pre-fermentation tank 39 and undergoes a hydrolysis reaction under the action of the fermentation bacteria, with a residence time of not less than 10 days. The solid insoluble substances in this cell are preliminarily decomposed into soluble substances, thereby realizing the pre-fermentation of the black water; the black water passes through the secondary fermentation tank 42 and resides for not less than 5 days. The macromolecular organic matter that has been preliminarily dissolved in the black water in this cell undergoes a hydrolysis reaction and is further decomposed into smaller molecular substances, thereby realizing the secondary fermentation of the black water; the black water passes through the harmless treatment tank 40 and resides for not less than 5 days. The fecal coliform bacteria, salmonella and other pathogenic microorganisms in the black water in this cell are inactivated, thereby realizing the harmlessness of the black water; the black water passes through the liquid fertilizer storage tank 41 and resides for not less than 10 days. The treated black water becomes liquid fertilizer, which is stored in this cell and can be scooped by farmers themselves and applied to farmland for resource utilization.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A micro-water flushing harmless sanitary toilet, characterized in that: include: A toilet body (1), a sewage channel (2), a sewage pipe (3), a micro-flushing device (4), an air extraction pipe (5) and a harmless septic tank (6), wherein the sewage channel (2) and the micro-flushing device (4) are both connected to the toilet body (1), the upper end of the sewage pipe (3) is connected to the sewage channel (2), the lower end of the sewage pipe (3) is connected to the harmless septic tank (6), and the sewage pipe (3) is provided with an opening (17) near the entrance of the harmless septic tank (6) for connecting the air extraction pipe (5); A water inlet (15) is provided at the rear side of the inner cavity of the toilet body (1), and the water inlet (15) is connected to the micro-flushing device (4); the harmless septic tank (6) is located at the oblique side or the rear side of the toilet body (1), and the harmless septic tank (6) comprises a pre-fermentation tank (39), a harmless treatment tank (40) and a liquid fertilizer storage tank (41) which are arranged in sequence; the pre-fermentation tank (39) is added with a liquid fermentation bacterial agent; the pre-fermentation tank (39) and the harmless treatment tank (40) are added with a spherical biological filler (16); the liquid fermentation bacterial agent contains Firmicutes, and at least one of Bacteroidetes and Proteobacteria, wherein the abundance of Firmicutes reaches more than 50%; The sewage pipe (3) is designed as a straight pipe and is connected to the harmless septic tank (6) at an angle; The micro-water flushing device (4) adopts a pneumatic flushing design and comprises a barrel body (7) and a barrel cover (8). The barrel cover (8) is provided with an air cylinder assembly, and the barrel body (7) and the barrel cover (8) are connected via the air cylinder assembly.

2. The micro-water flushing harmless sanitary toilet according to claim 1, characterized in that: The harmless septic tank (6) is also provided with a secondary fermentation tank (42) between the pre-fermentation tank (39) and the harmless treatment tank (40), and the secondary fermentation tank (42) is also added with spherical biological fillers (16).

3. The micro-water flushing harmless sanitary toilet according to claim 1, characterized in that: The diameters of the sewage discharge channel (2) and the sewage discharge pipe (3) are 100-170 mm.

4. The micro-water flushing harmless sanitary toilet according to claim 1, characterized in that: The sewage pipe (3) is inserted obliquely into the harmless septic tank (6) at an angle of 15 to 60 degrees.

5. The micro-water flushing harmless sanitary toilet according to claim 1, characterized in that: The barrel cover (8) is provided with a fixing ring (9), a water filling port (10) and a rotating cover (11); a water outlet (12) is provided at the side end of the barrel cover (8); one end of the water outlet (12) is connected to a suction pipe (13); the other end of the water outlet (12) is connected to a connecting pipe (14); the suction pipe (13) and the connecting pipe (14) are fixed to the barrel cover (8) via a fixing assembly (38); the suction pipe (13) is located inside the barrel body (7); the other end of the connecting pipe (14) is connected to a water inlet (15) on the toilet body (1).

6. The micro-water flushing harmless sanitary toilet according to claim 1, characterized in that: The air cylinder assembly comprises an air intake pipe, a piston, a push rod, a spring, glass beads, and a perforated partition plate. The air intake pipe (28) is connected between the barrel cover (8) and the barrel body (7). One end of the air intake pipe (28) is fixed on the fixing ring (9). The piston (29) is arranged in the air intake pipe (28) and fits tightly therewith so as to be able to slide up and down. The upper end of the piston (29) is connected to the push rod (30), and the lower end of the air intake pipe is connected to the spring (31). The glass beads (32) are placed on the upper end of the spring (31), and the perforated partition plate (33) is placed on the upper end of the glass beads (32) so as to limit the glass beads (32) between the spring (31) and the perforated partition plate (33).

7. The micro-water flushing harmless sanitary toilet according to claim 1, characterized in that: The air inlet pipe (28) is provided with an air inlet (22) at a position 3 to 8 cm away from the upper end of the pipe opening.

8. The micro-water flushing harmless sanitary toilet according to claim 1, characterized in that: A flow blocking cover (37) is provided at the water inlet (15), and the lower half of the flow blocking cover (37) is open.

9. The micro-water flushing harmless sanitary toilet according to claim 1, characterized in that: The barrel body (7) has a depth of 40 to 50 cm, an effective volume of 15 to 20 L, and a water output of 800 to 1000 mL per pressing.

10. The micro-flushing harmless sanitary toilet according to claim 1, characterized in that: The diameter of the air extraction pipe (5) is 10 to 30 cm, the height is 2 to 3 m, and the top end is provided with a wind cap (36).

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