Automatic excrement processor for vehicle and excrement processing method

Abstract

The invention provides an automatic excrement processor for a vehicle and an excrement processing method. The automatic excrement processor comprises a flocculent precipitation device, a solid-liquid separation device, a solid collecting and drying device and a water circulation system, the flocculent precipitation device is provided with a partition plate and is divided into an upper cavity and a lower cavity, a dosing device is connected in the lower cavity, and a filtering system is connected between the lower cavity and the water purification tank pool; the solid-liquid separation device is provided with a solid-liquid separation device barrel, a piston, a piston pushing mechanism, a baffle, a baffle pushing mechanism and a liquid backflow system, the solid-liquid separation device adopts a piston type mechanism to separate solids and liquid in dirt, and the separated solids are discharged to the solid collecting and drying device; and the solids in the solid collecting and drying device are dried by introducing hot air of an automobile engine. The volume and weight of purified water carried by the vehicle can be reduced, the volume and weight of dirt can be effectively reduced, meanwhile, heat of an engine is used for drying treated solid waste, and energy conservation and emission reduction are facilitated.

Description

Technical Field

[0001] The invention relates to vehicle-mounted feces treatment, and in particular to an automatic vehicle-mounted feces treatment device and a feces treatment method. Background Art

[0002] With the rapid development of related technologies, the transportation industry has provided people with more convenient travel services. For passengers traveling long distances by train, long-distance bus and other means of transportation, going to the toilet during the journey is an inevitable problem.

[0003] In the past, traditional direct-discharge toilets were common facilities on transportation vehicles, but with the continuous innovation of technology, these direct-discharge toilets are being replaced by more advanced and hygienic enclosed toilets. At present, many modern trains, some long-distance buses and RVs are equipped with enclosed toilets with collection tanks. These toilets use a collection tank system to store passengers' excrement such as urine and feces in a waste collection container inside the vehicle. In this way, when the vehicle arrives at the designated station, it can be uniformly collected and processed by a fecal suction truck or a ground receiving system, or the staff can manually clean and dump the waste. However, the capacity of these waste collection containers is limited. When facing peak passenger flow or when the station is far away, it is easy to reach a full load state, causing the toilet to have to be closed during the journey, which brings great inconvenience and trouble to the majority of passengers. In addition, the process of handling these wastes is time-consuming and inefficient, especially when handling wastes in RVs, the problem is particularly prominent. At the same time, the clean water tanks and sewage tanks carried by vehicles are not only bulky and heavy, but their existence not only occupies valuable space resources, but also increases the fuel consumption burden of vehicles during driving. This is a problem that needs to be solved in terms of environmental protection and economic benefits. Summary of the invention

[0004] In order to solve the above problems, the present application relates to an automatic feces processor for vehicles and its use method, including a toilet, flocculation sedimentation, solid-liquid separation, solid drying and water circulation system. The processor can separate the mixed liquid of feces and urine, dry the solids, and purify the liquid for recycling. It helps to reduce the load of vehicles, reduce fuel consumption, and achieve energy conservation and emission reduction. The purified sewage can be recycled, which improves resource efficiency and is environmentally friendly. The specific plan is as follows:

[0005] An automatic feces processor for a vehicle, the vehicle is provided with a heat dissipation and exhaust vent, a toilet and a clean water tank, the toilet and the clean water tank are connected through a drainage pipe, and the automatic feces processor for the vehicle comprises a flocculation and sedimentation device, a solid-liquid separation device and a solid collection and drying device;

[0006] The flocculation sedimentation device is provided with a cavity, a partition is provided in the cavity to divide the cavity into an upper cavity and a lower cavity, the upper cavity is connected to the toilet bowl for receiving mixed sewage from the toilet bowl, a first liquid level sensor is provided in the lower cavity and is connected to a dosing device, a partition is provided between the upper cavity and the lower cavity, the partition is connected to a partition driving mechanism, the partition driving mechanism is connected to the liquid level sensor, the partition driving mechanism drives the partition to move to close or connect the upper cavity and the lower cavity, a filtering system is connected between the lower cavity and the clean water tank, and the filtering system is used to filter the suspension in the lower cavity and then transport it to the clean water tank;

[0007] The solid-liquid separation device is provided with a solid-liquid separation device cylinder, a piston, a piston pushing mechanism, a baffle, a baffle pushing mechanism, and a liquid reflux system. A piston is provided in a sliding seal in the solid-liquid separation device cylinder. The piston pushing mechanism is connected to the piston and is used to drive the piston to slide in the solid-liquid separation device cylinder. A solid waste discharge port is provided at one end of the solid-liquid separation device cylinder. The solid-liquid separation device cylinder is connected to the lower cavity. The baffle is arranged on the opening side of the solid-liquid separation device cylinder. The baffle pushing mechanism is connected to the baffle and is used to push the baffle to open or close the solid waste discharge port. One end of the liquid reflux system is connected to the bottom of the solid waste discharge port close to the solid waste discharge, and the other end of the liquid reflux system is connected to the lower cavity. The liquid reflux system pumps the liquid in the solid-liquid separation device cylinder to the lower cavity.

[0008] The solid collecting and drying device is provided with a drying box body, which is connected to the solid waste discharge port through a solid waste discharge pipeline, and the drying box body is connected to the heat dissipation exhaust port through a drying pipeline.

[0009] Furthermore, the flocculation and sedimentation device is located at the bottom of the toilet bowl, and the toilet bowl is connected to the upper cavity through a first sewage pipe;

[0010] The partition is a partition that can be horizontally moved, horizontally rotated, or flipped up and down.

[0011] Furthermore, the partition driving mechanism is provided with a first motor, a gear rack mechanism and a connecting rod, the gear rack mechanism is provided with a gear shaft and a rack meshing with each other, the gear shaft is fixed on the rotating shaft of the first motor, the rack is connected with the connecting rod and the horizontally movable partition,

[0012] A scraper matched with the partition is arranged in the upper cavity. When the partition is horizontally moved and opened, the scraper is used to scrape off dirt attached to the upper surface of the partition.

[0013] Furthermore, the filtration system includes a filtration pipeline, a filtration device and a first water pump. One end of the filtration pipeline is arranged in the upper middle part of the lower cavity, and the other end is connected to the clean water tank. The first water pump draws liquid from the surface of the lower cavity and filters it through the filtration device and then transports it back to the clean water tank.

[0014] Furthermore, the solid-liquid separation device is located at the bottom of the flocculation sedimentation device, and is connected to the lower cavity through a second sewage discharge pipeline. The flocculent dirt formed in the lower cavity after the drug addition treatment is discharged into the cylinder of the solid-liquid separation device through the second sewage discharge pipeline.

[0015] Furthermore, the piston pushing mechanism is provided with a cylindrical nut, a square shaft, a wheel disc, and a second motor. The cylindrical nut is arranged at the other end of the cylinder of the solid-liquid separation device. The second motor is connected to the cylindrical nut through a gear set and drives the cylindrical nut to rotate.

[0016] The square shaft is fixedly arranged in the cylindrical nut, one end of the square shaft is fixedly connected to the cylinder of the solid-liquid separation device through a forked foot, and the other end of the square shaft passes through the cylindrical nut and is connected to a fixed bracket arranged outside the cylindrical nut;

[0017] The center of the wheel disc is provided with a square hole which slides with the square shaft, the outer diameter of the wheel disc is provided with an external thread which cooperates with the internal thread of the cylindrical nut, the wheel disc is fixedly connected to the rear end face of the piston through a plurality of connecting rods, and the piston is a rubber piston with a convex front end face.

[0018] Furthermore, an annular filter is coaxially arranged at one end of the solid-liquid separation device cylinder near the solid waste discharge port, the piston passes through the annular filter, an annular gap is arranged between the annular filter and the outer side wall of the solid-liquid separation device cylinder, a second liquid level sensor is arranged in the annular gap, and the bottom of the annular gap is connected to the liquid reflux system;

[0019] The liquid reflux system comprises a reflux pipeline and a second water pump. The second water pump extracts the liquid level at the bottom of the annular gap and pumps it to the lower cavity. The reflux pipeline is provided with a check valve.

[0020] Furthermore, the drying box body is provided with a shell and a drawer, the top of the drawer is provided with an opening and a handle is provided on one side.

[0021] A solid waste discharge port and a drying air inlet are provided on the top of the shell, which are directly connected to the inside of the drawer. The solid waste discharge port and the drying air inlet are connected to the solid waste discharge pipeline and the drying pipeline respectively.

[0022] A heating coil is also provided at the bottom of the housing.

[0023] A feces processing method based on the above-mentioned vehicle-mounted feces automatic processor, the method comprising:

[0024] The clean water tank is drained to flush the toilet bowl, and the mixed waste in the toilet bowl is discharged into the lower chamber of the flocculation sedimentation device;

[0025] When the liquid level sensor senses that the mixed dirt in the lower cavity has reached a certain height, the partition drive mechanism starts and drives the partition to close to separate the upper cavity and the lower cavity;

[0026] The dosing device adds flocculant to the lower cavity, so that the mixed dirt in the lower cavity forms flocculent dirt and settles;

[0027] The filtration system filters the suspension in the lower chamber and transports it to the clean water tank, and the flocculent dirt is discharged into the cylinder of the solid-liquid separation device which is sealed with the baffle;

[0028] The piston pushing mechanism drives the piston to slide in the cylinder of the solid-liquid separation device, pushing and squeezing the flocculent dirt toward the baffle;

[0029] The liquid reflux system pumps the liquid after solid-liquid separation in the cylinder of the solid-liquid separation device to the lower cavity;

[0030] The baffle pushing mechanism pushes the baffle to open the solid waste discharge port, and the piston pushing mechanism continues to drive the piston to move, so as to discharge the squeezed solid waste from the solid waste discharge port to the solid waste discharge pipeline;

[0031] The drying box is used to receive solid waste from the solid waste discharge pipeline, and the solid waste in the drying box is dried using the heat dissipation exhaust vents of the vehicle.

[0032] The advantages of the present invention are:

[0033] 1) The flocculation and sedimentation device is divided into two layers, the upper cavity is used to store newly generated sewage, and the lower cavity is used for flocculation and sedimentation operations. Flocculants can be automatically added to the sewage to accelerate the sedimentation of solids in the sewage.

[0034] 2) There are two water circulation systems: the first set of filtration system filters and deodorizes the suspension in the lower cavity, and injects the treated clean liquid into the clean water tank. The filtration uses a filter screen made of stainless steel and other materials, and the deodorization uses activated carbon and other materials; the second set of liquid reflux system transports the liquid separated by the solid-liquid separation device back to the lower cavity to achieve the reuse of sewage.

[0035] 3) The solid-liquid separation device uses a piston mechanism to separate the solids and liquids in the dirt, thereby improving the separation efficiency. When the piston push mechanism is working, the second motor drives the gear set to rotate, and the gear set drives the cylindrical nut to rotate. Since the square shaft is fixed in the cylindrical nut, and one end of the square shaft is fixedly connected to the cylinder of the solid-liquid separation device, the rotation of the cylindrical nut will cause the wheel disc to move linearly along the square shaft, thereby pushing or pulling the piston to slide in the cylinder of the solid-liquid separation device. The front end face of the piston is designed to be convex, which can better contact with the inner wall of the cylinder of the solid-liquid separation device, forming a progressive sealing contact surface, thereby improving the solid-liquid separation effect.

[0036] 4) The solid collection and drying device uses the waste heat generated by the automobile engine for heating, and uses electric heating tubes for auxiliary heating, which saves energy and improves energy utilization. The inner layer of the solid collection and drying device is a pull-out drawer. When the solid is full, the drawer can be pulled out to pour out and collect the solid waste, which is convenient for subsequent harmless treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0038] Figure 1 This is a structural principle diagram of an automatic feces processor for vehicles of the present invention;

[0039] Figure 2 It is a schematic diagram of the structure of the flocculation sedimentation device;

[0040] Figure 3 It is a structural schematic diagram of a solid-liquid separation device;

[0041] Figure 4 It is a schematic diagram of the internal structure of the solid-liquid separation device;

[0042] Figure 5 It is a structural schematic diagram of a square shaft;

[0043] Figure 6 A structural diagram of a wheel disc and a piston that are fixedly connected;

[0044] Figure 7 It is a schematic diagram of a solid-liquid separation device cylinder with an annular filter screen inside;

[0045] Figure 8 This is a schematic diagram of a clean water tank connected to a filtration system;

[0046] Fig. 9 Schematic diagram of the solid collection and drying device. DETAILED DESCRIPTION

[0047] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0048] In order to fully understand the present invention, detailed steps and detailed structures will be proposed in the following description to illustrate the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0049] Reference Figure 1 As shown, the present invention provides an automatic feces processor for a vehicle. The vehicle is provided with a heat dissipation exhaust port, a toilet 1 and a clean water tank 6. The toilet 1 and the clean water tank 6 are connected by a drainage pipe. The automatic feces processor for a vehicle of the present invention mainly includes a flocculation sedimentation device 2, a solid-liquid separation device 3 and a solid collection and drying device 4.

[0050] Flocculation sedimentation device 2

[0051] like Figure 1-2 As shown, the flocculation and sedimentation device 2 is located at the bottom of the toilet bowl. The toilet bowl 1 is connected to the flocculation and sedimentation device 2 through a first sewage pipe 21. The first sewage pipe 2 is provided with a U-shaped water trap for the purpose of deodorization.

[0052] The flocculation sedimentation device 2 is provided with a cavity, in which a partition 24 is provided to divide the cavity into an upper cavity 22 and a lower cavity, and the upper cavity 22 is connected to the toilet bowl 1 for receiving mixed waste from the toilet bowl. A liquid level sensor is provided in the lower cavity and is connected to a dosing device 23, and the partition 24 is connected to a partition driving mechanism, which is connected to the liquid level sensor, and the partition driving mechanism drives the partition 24 to move to close or connect the upper cavity 22 and the lower cavity.

[0053] Optionally, the partition 24 is a partition 24 that moves horizontally, rotates horizontally, or flips up and down. Figure 2 The partition 24 that moves horizontally is shown as selected. The partition driving mechanism is provided with a first motor 27, a gear rack mechanism 26 and a connecting rod 25. The gear rack mechanism 26 is provided with a gear shaft and a rack that mesh with each other. The gear shaft is fixed on the rotating shaft of the first motor 27. The rack is connected with the connecting rod 25 and the partition 24. Further optionally, the inner wall of the upper cavity 22 is provided with a scraper that matches the partition 24 that moves horizontally. When the partition 24 moves horizontally and opens, the scraper can scrape off the dirt attached to the surface of the partition 24.

[0054] A filtration system is connected between the lower cavity and the clean water tank 6. The filtration system is used to filter the suspension in the lower cavity and then transport it to the clean water tank 6. The filtration system includes a filtration pipeline 210, a filtration device 51 and a first water pump 52. One end of the filtration pipeline 210 is arranged in the upper middle part of the lower cavity, and the other end is connected to the clean water tank 6. The first water pump 52 extracts liquid from the surface of the lower cavity, filters it through the filtration device 51, and then transports it back to the clean water tank 6, thereby achieving the purpose of saving water.

[0055] Solid-liquid separation device 3

[0056] like Figure 3-7 As shown, in an optional embodiment, the solid-liquid separation device 3 is located at the bottom of the flocculation sedimentation device 2, and the solid-liquid separation device 3 is connected to the lower cavity through a second sewage pipe 29. The second sewage pipe 29 is provided with a solenoid valve. After the solenoid valve is opened, the flocculent dirt formed in the lower cavity after the drug addition treatment is discharged into the solid-liquid separation device cylinder 35 through the second sewage pipe 29.

[0057] The solid-liquid separation device 3 is provided with a solid-liquid separation device cylinder 35, a piston 311, a piston pushing mechanism, a baffle 33, a baffle pushing mechanism 32, and a liquid reflux system. A piston 311 is provided in a sliding seal in the solid-liquid separation device cylinder 35, and the piston pushing mechanism is connected to the piston 311 to drive the piston 311 to slide in the solid-liquid separation device cylinder 35. A solid waste discharge port is provided at one end of the solid-liquid separation device cylinder 35, the solid-liquid separation device cylinder 35 is connected to the lower cavity, the baffle 33 is arranged on the opening side of the solid-liquid separation device cylinder 35, the baffle pushing mechanism 32 is connected to the baffle 33 to push the baffle 33 to open or close the solid waste discharge port, one end of the liquid reflux system is connected to the bottom of the solid waste discharge port near the solid waste discharge, and the other end of the liquid reflux system 28 is connected to the lower cavity, and the liquid reflux system pumps the liquid in the solid-liquid separation device cylinder 35 to the lower cavity.

[0058] In an optional embodiment, the piston pushing mechanism is provided with a cylindrical nut 310, a square shaft 312, a wheel disc 313, and a second motor 38. The cylindrical nut 310 is arranged at the other end of the cylindrical body 35 of the solid-liquid separation device. The second motor 38 is connected to the cylindrical nut 310 through a gear set 39 and drives the cylindrical nut 310 to rotate. The gear set 39 includes a gear shaft installed on the rotating shaft of the second motor 38 and a slave gear coaxially fixed on the cylindrical nut 310.

[0059] The square shaft 312 is fixed in the cylindrical nut 310, and one end of the square shaft 312 is fixedly connected to the solid-liquid separation device cylinder 35 through three forked feet. The other end of the square shaft 312 is a cylinder, which passes through the cylindrical nut 310, is connected to the fixed bracket 314 arranged on the outside of the cylindrical nut 310 from the gear, and a bearing is arranged between the cylindrical end of the square shaft 312 and the cylindrical nut 310, and the square shaft 312 is provided with end support by the fixed bracket 314.

[0060] A square hole is provided in the center of the wheel disc 313 for slidingly fitting with the square shaft 312. An external thread is provided on the outer diameter of the wheel disc 313 for fitting with the internal thread of the cylindrical nut 310. The wheel disc 313 is fixedly connected to the rear end face of the piston 311 through a plurality of connecting rods. Preferably, the piston 311 is a rubber piston with a convex front end face.

[0061] When the cylindrical nut 310 is driven to rotate by the second motor 38 and the gear set 39, since the square shaft 312 is fixed and remains stationary, the cylindrical nut 310 drives the wheel plate 313 to move axially along the square shaft 312 inside the cylindrical nut 310, thereby driving the rubber piston 311 to move and squeeze the solid waste.

[0062] In an optional embodiment, an annular filter is coaxially provided at one end of the solid-liquid separation device cylinder 35 near the solid waste discharge port, the piston 311 passes through the annular filter, an annular gap 351 is provided between the annular filter and the outer wall of the solid-liquid separation device cylinder 35, a second liquid level sensor is provided in the annular gap, and a sewage outlet 352 is provided at the bottom of the annular gap to connect with the liquid reflux system 28. The liquid reflux system 28 includes a reflux pipeline and a second water pump, the second water pump extracts the liquid level at the bottom of the annular gap and pumps it to the lower cavity, and a check valve is provided in the reflux pipeline to prevent liquid water flow.

[0063] Solid collection and drying device 4

[0064] The solid collecting and drying device 4 is connected to the solid-liquid separation device 3 through a solid waste discharge pipe 36, and is used to collect and dry the solid waste separated by the solid-liquid separation device 3; a drying air inlet is provided on the top of the solid collecting and drying device 4, which is connected to the engine radiator exhaust port of the vehicle through a hot air duct 43, and uses the engine waste heat to dry the solid to reduce the volume; the inner layer of the solid collecting and drying device 4 is a drawer-type drying box 41. When the solid is full, the inner drying box 41 can be pulled out to pour out the solid waste for subsequent processing.

[0065] Further preferably, a heating coil 42 is laid at the bottom of the solid collecting and drying device 4 for electrically assisting heating and drying of the solid to improve drying efficiency.

[0066] Through the connection and coordination of various devices, it can not only reduce the volume and weight of clean water carried by vehicles, but also effectively reduce the volume and weight of dirt, reduce fuel consumption during the driving process of vehicles, and save energy and reduce emissions. At the same time, sewage can be recycled after purification, reducing resource waste, improving resource utilization, and being more environmentally friendly.

[0067] The working process of the invention is briefly described below:

[0068] 1) After using the toilet, the passenger presses the flush switch of the clean water tank 6 to flush the toilet bowl 1, and the mixed waste in the toilet bowl is discharged into the lower cavity of the flocculation sedimentation device 2. At this time, the partition in the flocculation sedimentation device 2 is in an open state, so that the waste discharged from the toilet bowl 1 flows directly into the lower cavity.

[0069] 2) After the first liquid level sensor senses that the mixed waste in the lower cavity has reached a certain height, the partition drive mechanism starts and drives the partition to close to separate the upper cavity and the lower cavity. In this process, the upper cavity 22 can be used to store newly generated waste without affecting the continued use of the toilet.

[0070] 3) The dosing device 23 adds flocculants to the lower cavity, so that the mixed dirt in the lower cavity forms flocculent dirt and settles.

[0071] 4) After the flocculation and sedimentation process is completed, the suspension in the lower cavity is filtered through the filtration system and then transported to the clean water tank 6 for repeated flushing of the toilet bowl. After the liquid level in the lower cavity in the flocculation and sedimentation device drops to a certain amount, the filtration system is closed, and the solenoid valve on the second sewage discharge pipeline 29 is opened to discharge the flocculent dirt into the solid-liquid separation device cylinder 35. At this time, the solid-liquid separation device cylinder 35 and the baffle 33 remain in a sealed state.

[0072] 5) The piston pushing mechanism drives the piston 311 to slide slowly in the cylinder 35 of the solid-liquid separation device, pushing and squeezing the flocculent dirt toward the baffle 33; forcing the liquid in the mixture to flow out to the annular gap 351 through the pores of the annular filter screen, while the solid remains in the annular filter screen.

[0073] 6) The second water pump draws the liquid level at the bottom of the annular gap and pumps it to the lower cavity.

[0074] 7) After the second liquid level sensor detects that the liquid in the annular gap is completely discharged, the second water pump is turned off. The baffle pushing mechanism 32 pushes the baffle 33 to open the solid waste discharge port, and the piston pushing mechanism continues to drive the piston 311 to move, discharging the squeezed solid waste from the solid waste discharge port to the solid waste discharge pipe 36; then the piston 311 returns to the initial position and closes the baffle 33.

[0075] 8) The drying box of the solid collection and drying device 4 is used to receive the solid waste from the solid waste discharge pipe 36. The drying box is connected to the exhaust port of the vehicle engine radiator to introduce hot air to dry the solid waste. A heating coil 42 is set at the bottom of the drying box to assist electric heating and drying when the engine hot air is insufficient. The inner layer of the solid collection and drying device 4 is provided with a drawer. When the solid is full, the drawer can be pulled out to pour out the solid waste and collect it in a designated location for subsequent processing.

[0076] In summary, the automatic feces processor for vehicles provided by the present invention can not only reduce the volume and weight of clean water carried by vehicles, but also effectively reduce the volume and weight of waste, reduce fuel consumption during driving, and save energy and reduce emissions. At the same time, the sewage can be recycled after purification, reducing resource waste, improving resource utilization, and being more environmentally friendly.

[0077] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. An automatic feces processor for a vehicle, the vehicle is provided with a heat dissipation vent, a toilet and a clean water tank, the toilet and the clean water tank are connected by a drainage pipe, characterized in that: The automatic feces processor for vehicles includes a flocculation and sedimentation device, a solid-liquid separation device and a solid collection and drying device; The flocculation sedimentation device is provided with a cavity, a partition is provided in the cavity to divide the cavity into an upper cavity and a lower cavity, the upper cavity is connected to the toilet bowl, a first liquid level sensor is provided in the lower cavity and is connected to a dosing device, a partition is provided between the upper cavity and the lower cavity, the partition is connected to a partition driving mechanism, the partition driving mechanism is connected to the liquid level sensor, the partition driving mechanism drives the partition to move to close or connect the upper cavity and the lower cavity, a filtering system is connected between the lower cavity and the clean water tank, and the filtering system is used to filter the suspension in the lower cavity and then transport it to the clean water tank; The solid-liquid separation device is provided with a solid-liquid separation device cylinder, a piston, a piston pushing mechanism, a baffle, a baffle pushing mechanism, and a liquid reflux system. A piston is provided in a sliding seal in the solid-liquid separation device cylinder. The piston pushing mechanism is connected to the piston and is used to drive the piston to slide in the solid-liquid separation device cylinder. A solid waste discharge port is provided at one end of the solid-liquid separation device cylinder. The solid-liquid separation device cylinder is connected to the lower cavity. The baffle is arranged on the opening side of the solid-liquid separation device cylinder. The baffle pushing mechanism is connected to the baffle and is used to push the baffle to open or close the solid waste discharge port. One end of the liquid reflux system is connected to the bottom of the solid waste discharge port close to the solid waste discharge, and the other end of the liquid reflux system is connected to the lower cavity. The liquid reflux system pumps the liquid in the solid-liquid separation device cylinder to the lower cavity. The solid collecting and drying device is provided with a drying box body, which is connected to the solid waste discharge port through a solid waste discharge pipeline, and the drying box body is connected to the heat dissipation exhaust port through a drying pipeline.

2. The automatic feces processor for vehicle according to claim 1, characterized in that: The flocculation and sedimentation device is located at the bottom of the toilet bowl, and the toilet bowl is connected to the upper cavity through the first sewage pipe; The partition is a partition that can be horizontally moved, horizontally rotated, or flipped up and down.

3. The automatic feces processor for vehicle according to claim 2, characterized in that: The partition driving mechanism is provided with a first motor, a gear rack mechanism and a connecting rod, the gear rack mechanism is provided with a gear shaft and a rack meshing with each other, the gear shaft is fixed on the rotating shaft of the first motor, and the rack is connected with the connecting rod and the horizontally movable partition; A scraper matched with the partition is arranged in the upper cavity. When the partition is horizontally moved and opened, the scraper is used to scrape off dirt attached to the upper surface of the partition.

4. The automatic feces processor for vehicle according to claim 1, characterized in that: The filtration system includes a filtration pipeline, a filtration device and a first water pump. One end of the filtration pipeline is arranged in the upper middle part of the lower cavity, and the other end is connected to the clean water tank. The first water pump extracts liquid from the surface of the lower cavity, filters it through the filtration device, and then transports it back to the clean water tank.

5. The automatic feces processor for vehicle according to claim 1, characterized in that: The solid-liquid separation device is located at the bottom of the flocculation sedimentation device. The solid-liquid separation device is connected to the lower cavity through the second sewage discharge pipeline. The flocculent dirt formed in the lower cavity after the drug addition treatment is discharged into the cylinder of the solid-liquid separation device through the second sewage discharge pipeline.

6. The automatic feces processor for vehicle according to claim 1, characterized in that: The piston push mechanism is provided with a cylindrical nut, a square shaft, a wheel disc, and a second motor. The cylindrical nut is arranged at the other end of the cylinder of the solid-liquid separation device. The second motor is connected to the cylindrical nut through a gear set and drives the cylindrical nut to rotate. The square shaft is fixedly arranged in the cylindrical nut, one end of the square shaft is fixedly connected to the cylinder of the solid-liquid separation device through a forked foot, and the other end of the square shaft passes through the cylindrical nut and is connected to a fixed bracket arranged outside the cylindrical nut; The center of the wheel disc is provided with a square hole which slides with the square shaft, the outer diameter of the wheel disc is provided with an external thread which cooperates with the internal thread of the cylindrical nut, the wheel disc is fixedly connected to the rear end face of the piston through a plurality of connecting rods, and the piston is a rubber piston with a convex front end face.

7. The automatic feces processor for vehicle according to claim 1, characterized in that: An annular filter is coaxially arranged at one end of the solid-liquid separation device cylinder near the solid waste discharge port, the piston passes through the annular filter, an annular gap is arranged between the annular filter and the outer side wall of the solid-liquid separation device cylinder, a second liquid level sensor is arranged in the annular gap, and the bottom of the annular gap is connected to the liquid reflux system; The liquid reflux system comprises a reflux pipeline and a second water pump. The second water pump extracts the liquid level at the bottom of the annular gap and pumps it to the lower cavity. The reflux pipeline is provided with a check valve.

8. The automatic feces processor for vehicle according to claim 1, characterized in that: The drying box body is provided with a shell and a drawer. The top of the drawer is provided with an opening and a handle is provided on one side. A solid waste discharge port and a drying air inlet are provided on the top of the shell, which are directly connected to the inside of the drawer. The solid waste discharge port and the drying air inlet are connected to the solid waste discharge pipeline and the drying pipeline respectively. A heating coil is also provided at the bottom of the housing.

9. A feces treatment method based on the vehicle-mounted feces automatic treatment device according to any one of claims 1 to 8, characterized in that: The method comprises: The clean water tank is drained to flush the toilet bowl, and the mixed waste in the toilet bowl is discharged into the lower chamber of the flocculation sedimentation device; After the first liquid level sensor senses that the mixed dirt in the lower cavity has reached a certain height, the partition drive mechanism starts and drives the partition to close to separate the upper cavity and the lower cavity; The dosing device adds flocculant to the lower cavity, so that the mixed dirt in the lower cavity forms flocculent dirt and settles; The filtration system filters the suspension in the lower chamber and transports it to the clean water tank, and the flocculent dirt is discharged into the cylinder of the solid-liquid separation device which is sealed with the baffle; The piston pushing mechanism drives the piston to slide in the cylinder of the solid-liquid separation device, pushing and squeezing the flocculent dirt toward the baffle; The liquid reflux system pumps the liquid after solid-liquid separation in the cylinder of the solid-liquid separation device to the lower cavity; The baffle pushing mechanism pushes the baffle to open the solid waste discharge port, and the piston pushing mechanism continues to drive the piston to move, so as to discharge the squeezed solid waste from the solid waste discharge port to the solid waste discharge pipeline; The drying box is used to receive solid waste from the solid waste discharge pipeline, and the solid waste in the drying box is dried by utilizing the heat dissipation and exhaust vents of the vehicle.

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