Mobile zero-emission environment-friendly public toilet

Abstract

The invention discloses a mobile zero-discharge environment-friendly public toilet, and relates to the technical field of zero-discharge public toiles.The mobile zero-discharge environment-friendly public toilet comprises a mobile public toilet and a partition plate assembled in the mobile public toilet and provided with an excrement channel and a liquid filter plate, and further comprises a sewage treatment chamber fixedly arranged in the mobile public toilet and located under the liquid filter plate; the floating sieve plate is arranged in the sewage treatment chamber and floats on the liquid level; and the collecting tank is fixedly arranged on the movable public toilet. According to the movable type zero-discharge environment-friendly public toilet, impurities and the like contained in liquid are intercepted on the inclined plane through the floating sieve plate, when the floating sieve plate reaches the highest liquid level along with the sewage treatment chamber, the impurities are poured into the microbial degradation chamber in a unified mode, solid-liquid diversion is further achieved, precipitation of solid substances in sewage is reduced, and through the aeration pipe, the solid substances can be effectively degraded. Sewage can be subjected to aeration treatment, and the scraping plate is driven to stir impurities on the inclined surface, so that the impurities are prevented from staying on the floating sieve plate to cause blockage.

Description

Technical Field

[0001] The present invention relates to the technical field of zero-emission public toilets, and in particular to a mobile zero-emission environmentally friendly public toilet. Background Art

[0002] Zero-emission public toilets are an environmentally friendly public health facility that aims to achieve zero pollution to the environment and efficient use of resources. Such toilets often use biodegradation, sewage treatment, rainwater collection and other technologies to achieve resource recycling.

[0003] In conjunction with publication number CN210124704U, publication date 2020-03-06, a biodegradable zero-emission intelligent and environmentally friendly public toilet is disclosed, including: a public toilet main body, a feces separation device, and a degradation device; a toilet is fixedly arranged in the public toilet main body; the feces separation device includes a collecting box connected to the sewage outlet of the toilet, a semipermeable membrane horizontally arranged in the collecting box, and a negative pressure pump and a fan connected to the collecting box; the degradation device includes a first degradation box and a second degradation box respectively connected to the collecting box, and a microbial storage box respectively connected to the first degradation box and the second degradation box.

[0004] In the prior art including the above patents, solid-liquid separation is achieved through a semipermeable membrane, and then a fan is used to blow the solid matter into a degradation box. However, some solid matter has a high viscosity after being soaked and will adhere to the semipermeable membrane, affecting the filtration efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a mobile zero-emission environmentally friendly public toilet to solve the above-mentioned problems.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: A mobile zero-emission environmentally friendly public toilet, comprising a mobile public toilet and a partition installed in the mobile public toilet and provided with a feces passage and a liquid filter plate, comprising:

[0007] A sewage treatment chamber is fixedly arranged in the mobile public toilet and is located directly below the liquid filter plate, and a microbial degradation chamber is fixedly arranged at the end thereof;

[0008] A floating screen plate arranged in the sewage treatment chamber and floating on the liquid surface, comprising an inclined surface facing the microbial degradation chamber, a plurality of scrapers for moving debris arranged in a linear array and rotating on the inclined surface, and an aeration pipe for blowing air below the liquid surface and driving the scrapers to swing;

[0009] A collection trough is fixedly arranged on the mobile public toilet, and a rainwater pipe is arranged on the collection trough extending to the upper surface of the floating screen plate.

[0010] Preferably, it further comprises a reagent adding tank mounted on the floating screen plate, on which a feed port is arranged, and an air outlet connected to the feed port is fixedly arranged on the aeration pipe, and the inner diameter of the air outlet narrows along the air outlet direction.

[0011] Preferably, a plurality of impellers are rotatably arranged on the floating screen plate, and the impellers are located at the ends of the air outlet.

[0012] Preferably, the air outlet port is provided with a waterproof plug for sealing the feed opening, and the waterproof plug is provided with an elastic member for closely fitting to the air outlet port.

[0013] Preferably, a rotating member is fixedly provided on the scraper, and the rotating member is transmission-connected to the impeller via a sprocket;

[0014] The scraper has an inclined state during the rotation of the impeller, and in the inclined state, the scraper swings downward due to weightlessness.

[0015] Preferably, the scraper is a V-shaped structure with an anti-corrosion coating on the surface.

[0016] Preferably, a turning rake and a cutting roller are rotatably arranged in the microbial degradation chamber, and the rake teeth of the turning rake and the cutting blades of the cutting roller are staggered.

[0017] Preferably, the turning rake and the floating screen plate are kept in synchronous movement via a linkage assembly.

[0018] Preferably, the linkage component comprises:

[0019] A transmission belt having a first end fixedly disposed on the floating screen plate;

[0020] Rotating a winding pulley disposed in the microbial degradation chamber and used for winding up the transmission belt;

[0021] A limiting groove is fixedly arranged on the transmission belt and slidingly cooperates with the turning rake.

[0022] Preferably, it also includes a steering pulley rotatably arranged at the end of the sewage treatment chamber, the transmission belt is wound around the steering pulley, and a rotating baffle that can resist the steering pulley is rotatably arranged on the floating screen plate.

[0023] In the above technical scheme, a mobile zero-emission environmentally friendly public toilet provided by the present invention has the following beneficial effects: impurities contained in the liquid are intercepted on the inclined surface by a floating sieve plate, and when the floating sieve plate reaches the highest level with the liquid level in the sewage treatment chamber, the impurities are uniformly dumped into the microbial degradation chamber, thereby further realizing solid-liquid diversion and reducing the precipitation of solid matter in the sewage. In addition, the sewage can be aerated through the aeration pipe, and the scraper can be driven to move the impurities on the inclined surface to avoid impurities staying on the floating sieve plate and causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 An overall three-dimensional schematic diagram provided for an embodiment of the present invention;

[0026] Figure 2 An overall cross-sectional schematic diagram provided for an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the structure of the partition, sewage treatment chamber, and microbial degradation chamber provided in an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of a cross-sectional structure of a floating screen plate provided in an embodiment of the present invention;

[0029] Figure 5 The embodiment of the present invention provides Figure 4 Schematic diagram of the inner A enlarged structure;

[0030] Figure 6 A schematic diagram of the scraper, sprocket and impeller structure provided in an embodiment of the present invention;

[0031] Figure 7 The embodiment of the present invention provides Figure 6 Middle B is a schematic diagram of the enlarged structure;

[0032] Figure 8 A schematic diagram of the structure of a turning rake and a cutting roller in a microbial degradation chamber provided in an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Mobile public toilet; 2. Collection trough; 21. Rainwater pipe; 3. Partition; 31. Feces channel; 32. Liquid filter plate; 4. Microbial degradation chamber; 41. Steering pulley; 42. Transmission belt; 43. Limiting groove; 44. Cutting roller; 45. Turning rake; 46. Winding pulley; 47. Transmission rod; 5. Sewage treatment chamber; 51. Floating screen plate; 52. Scraper; 521. Rotating part; 522. Chain tooth; 53. Rotating baffle; 54. Impeller; 55. Drug adding tank; 56. Aeration pipe; 561. Air outlet; 562. Feeding port; 563. Waterproof plug; 564. Elastic part. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] like Figure 1-8 As shown, a mobile zero-emission environmentally friendly public toilet includes a mobile public toilet 1 and a partition 3 installed in the mobile public toilet 1 and provided with a feces channel 31 and a liquid filter plate 32, including:

[0037] A sewage treatment chamber 5 is fixedly arranged in the mobile toilet 1 and is located directly below the liquid filter plate 32, and a microbial degradation chamber 4 is fixedly arranged at the end thereof;

[0038] A floating screen plate 51 is arranged in the sewage treatment chamber 5 and floats on the liquid surface, and includes an inclined surface facing the microbial degradation chamber 4, and a plurality of scrapers 52 for moving debris are arranged in a linear array and rotatably arranged on the inclined surface, and also includes an aeration pipe 56 for blowing air below the liquid surface and driving the scrapers 52 to swing;

[0039] The collecting tank 2 is fixedly arranged on the mobile toilet 1 , and a rainwater pipe 21 extending toward the upper surface of the floating screen plate 51 is arranged on the collecting tank 2 .

[0040] Specifically, the feces channel 31 extends to the microbial degradation chamber 4, and the liquid filter plate 32 is inclined toward the feces channel 31 to separate the solid and liquid of the excrement. The sewage treatment chamber 5 is also connected to a recovery mechanism to collect the treated sewage, and the floating screen plate 51 is slidably set on the sewage treatment chamber 5.

[0041] Furthermore, the floating sieve plate 51 is always kept on the liquid surface of the sewage treatment chamber 5 under the action of buoyancy, and the liquid in the liquid filter plate 32 and the rainwater pipe 21 enters the sewage treatment chamber 5 through the floating sieve plate 51, so that the solid impurities stay on the upper surface of the floating sieve plate 51. Since the inclined surface of the floating sieve plate 51 faces the microbial degradation chamber 4, the impurities roll down in the direction of the microbial degradation chamber 4 under the action of gravity. When the height of the floating sieve plate 51 is low, the impurities are blocked by the inner wall of the sewage treatment chamber 5 and stay, and the floating sieve plate 51 is higher than the sewage treatment chamber 5. The floating sieve plate 51 itself has a certain thickness. When the liquid level reaches the highest point, the upper surface of the floating sieve plate 51 is higher than the sewage treatment chamber 5. When the chamber 5 is filled with water, the impurities are not blocked by the inner wall and enter the microbial degradation chamber 4 to be decomposed. At the same time, air is injected into the aeration pipe 56, and the gas in the aeration pipe 56 enters below the liquid level of the sewage treatment chamber 5 to aerate the sewage, reduce odor residue, and promote the decomposition ability of microorganisms. The scraper 52 is driven by gas to rotate, so as to move the impurities retained on the inclined surface, reduce the retention of impurities, and avoid clogging the floating sieve plate 51. Since the height of the aeration pipe 56 changes with the floating sieve plate 51, and under the suction of the recovery mechanism, the height of the floating sieve plate 51 changes frequently with the liquid level, thereby expanding the aeration range of the aeration pipe 56 and improving the aeration effect.

[0042] In the above technology, impurities contained in the liquid are retained on the inclined surface by the floating sieve plate 51, and when the floating sieve plate 51 reaches the highest level along with the liquid level in the sewage treatment chamber 5, the impurities are uniformly poured into the microbial degradation chamber 4, thereby further realizing solid-liquid diversion and reducing the precipitation of solid matter in the sewage. In addition, the sewage can be aerated through the aeration pipe 56, and the scraper 52 is driven to move the impurities on the inclined surface to avoid the impurities staying on the floating sieve plate 51 and causing blockage.

[0043] As an embodiment further provided by the present invention, the reagent adding tank 55 mounted on the floating screen plate 51 is provided with a discharge port 562, and the aeration pipe 56 is fixedly provided with an air outlet 561 connected to the discharge port 562, and the inner diameter of the air outlet 561 narrows along the air outlet direction.

[0044] Specifically, the agent adding groove 55 is detachably mounted on the floating sieve plate 51 and can be replaced regularly to ensure sufficient agent. The discharge port 562 is connected to the narrower end of the gas outlet 561. The discharge port 562 is inclined to facilitate the powdered agent to roll in the gas outlet direction. Since the inner diameter of the gas outlet 561 is narrowed along the gas outlet direction, the gas flow rate increases and the pressure decreases when flowing through the gas outlet 561. The agent is sucked to the end of the gas outlet 561 under the action of the pressure difference, and then blown into the sewage by the gas. The agent is dispersed by the force of the gas blowing, and the multiple gas outlets 561 drive the water body to form turbulence, which makes the water flow inside the water body, further diffusing the agent and preventing the agent from directly settling at the bottom of the sewage treatment chamber 5 under the action of gravity.

[0045] As another embodiment further provided by the present invention, a plurality of impellers 54 are rotatably disposed on the floating screen plate 51 , and the impellers 54 are located at the end of the air outlet 561 .

[0046] Specifically, since the impeller 54 is located at the end of the gas outlet 561, the gas in the gas outlet 561 will drive the impeller 54 to rotate. Figure 5 In the state shown, the rotation of the impeller 54 causes the water flow to form multiple small vortices, thereby increasing the flow rate of the water body, and a large number of bubbles are generated when the gas gushes out from the air outlet 561. The powdered medicine may remain in the bubbles and float on the sewage surface as the bubbles rise. At this time, the powdered medicine is difficult to dissolve. During the rotation of the impeller 54, the blades will contact and split the bubbles, thereby playing a role in defoaming, ensuring that a large number of bubbles are punctured by the rotating impeller 54 in the water, and the powdered medicine contained inside will also flow and dissolve directly below the liquid surface.

[0047] As another embodiment further provided by the present invention, the air outlet 561 is provided with a waterproof plug 563 for sealing the feed opening 562 , and the waterproof plug 563 is provided with an elastic member 564 for being closely attached to the air outlet 561 .

[0048] Specifically, the waterproof plug 563 has a conical surface on one side facing the air outlet 561, and the elastic member 564 ensures that when there is no ventilation, the waterproof plug 563 will be in close contact with the air outlet 561 and block the feed port 562 to prevent the powder in the feed port 562 from gathering at the air outlet 561 and becoming hardened due to moisture. After the aeration pipe 56 is ventilated, the air pressure overcomes the elastic force of the elastic member 564 to open the waterproof plug 563. At this time, the gas flows outward along the conical surface of the waterproof plug 563, forming a pointed cone-shaped diffusion surface, which allows the carried powder to be better diffused. After the aeration is completed, the waterproof plug 563 is again in close contact with the air outlet 561 and blocks the feed port 562 under the action of the elastic member 564.

[0049] As another embodiment further provided by the present invention, a rotating member 521 is fixedly provided on the scraper 52, and the rotating member 521 is transmission-connected to the impeller 54 via a sprocket 522;

[0050] The scraper 52 has an inclined state under the rotation stroke of the impeller 54, and in the inclined state, the scraper 52 swings down due to weightlessness.

[0051] Specifically, the rotating member 521 is provided with teeth that mesh with the chain teeth 522, and the teeth are half a circle. In the initial state, the rotating member 521 and the scraper 52 are in a vertical state. Figure 6 As shown, half a circle of teeth on the rotating member 521 meshes with the sprocket teeth 522, while the other half circle of smooth side surfaces only contacts with the sprocket teeth 522. As the impeller 54 rotates, the sprocket teeth 522 are driven to transmit, thereby driving the rotating member 521 and the scraper 52 to swing to an inclined state. At this time, since the teeth rotate to an area where they are not engaged with the sprocket teeth 522, the rotating member 521 and the scraper 52 are not driven by the sprocket teeth 522, and the scraper 52 is in a weightless inclined state. Under the action of gravity, the scraper 52 swings down, thereby driving the rotating member 521 to rotate, and the teeth mesh with the sprocket teeth 522 again. Since the scraper 52 is a V-shaped structure with an anti-corrosion coating on the surface, as the scraper 52 swings, the two sides of the V-shaped structure continuously move the impurities on the inclined surface, promote the rolling of the impurities, and prevent the impurities from being retained on the floating screen plate 51. The anti-corrosion coating can also prevent the scraper 52 from being damaged after long-term use.

[0052] As another embodiment further provided by the present invention, a turning rake 45 and a cutting roller 44 are rotatably arranged in the microbial degradation chamber 4, and the rake teeth of the turning rake 45 and the cutting blades of the cutting roller 44 are staggered.

[0053] Specifically, the cutting roller 44 rotates continuously to cut larger impurities or solids, and the turning rake 45 rotates in the microbial degradation chamber 4 to turn over the wood chips, biological bacteria, feces, etc. therein to prevent the impurities at the bottom from clumping due to moisture. Since the rake teeth and the cutting blades are staggered, the cutting roller 44 and the turning rake 45 will not interfere with each other during operation, thereby improving the efficiency of microbial treatment through cutting and stirring.

[0054] As another embodiment further provided by the present invention, the turning rake 45 and the floating screen plate 51 are kept in synchronous motion via a linkage assembly.

[0055] Specifically, the floating screen plate 51 moves up and down due to the change of the liquid level, thereby driving the turning rake 45 to turn through the linkage assembly, reducing the power source for driving the turning rake 45, thereby reducing the cost of use and maintenance.

[0056] As another embodiment further provided by the present invention, the linkage component includes:

[0057] A transmission belt 42 having a first end fixedly disposed on the floating screen plate 51;

[0058] Rotating a reel pulley 46 disposed in the microbial degradation chamber 4 and used for reeling in the transmission belt 42;

[0059] A limiting groove 43 is fixedly arranged on the transmission belt 42 and slidably cooperates with the turning rake 45 .

[0060] Specifically, a torsion spring is provided in the winding pulley 46, a protrusion is provided in the limiting groove 43, and a transmission rod 47 rotatably connected to the inner wall of the microbial degradation chamber 4 is provided on the turning rake 45. A groove that slides with the protrusion is opened on the transmission rod 47. When the floating screen plate 51 moves downward, the first end of the transmission belt 42 is pulled, and a part of the transmission belt 42 on the winding pulley 46 is stretched out, and the torsion spring is deformed and accumulates elastic potential energy, and then the limiting groove 43 is pulled upward, thereby driving the transmission rod 47 to swing upward, and the wood chips and impurities at the bottom are turned up. When the floating screen plate 51 moves upward, the elastic potential energy accumulated in the torsion spring on the winding pulley 46 is released, and the transmission belt 42 is wound on the winding pulley 46. The transmission belt 42 pulls and assists the floating screen plate 51 to move upward, driving the limiting groove 43 to move downward, and the transmission rod 47 swings downward to contact the wood chips at the bottom.

[0061] As another embodiment further provided by the present invention, a steering pulley 41 is rotatably arranged at the end of the sewage treatment chamber 5, a transmission belt 42 is wound around the steering pulley 41, and a rotating baffle 53 that can resist the steering pulley 41 is rotatably arranged on the floating screen plate 51.

[0062] Specifically, in the process of the floating sieve plate 51 moving up and down, impurities accumulate on the inclined surface and roll toward the direction of the microbial degradation chamber 4, and are easily adhered to the inner wall located in this direction. Therefore, a baffle 53 is arranged on the floating sieve plate 51 to block impurities. The transmission belt 42 is limited by the setting of the steering pulley 41, and the friction force of the transmission belt 42 during the transmission process is reduced. At the same time, the top of the steering pulley 41 is flush with the highest point of the axis of the rotating shaft of the rotating baffle 53. When the height of the floating sieve plate 51 is low, the rotating baffle 53 is supported by the inner wall and remains vertical to the horizontal plane, preventing impurities from contacting the inner wall. When the floating sieve plate 51 drives the rotating baffle 53 to reach the highest point, the rotating baffle 53 loses the inner wall obstruction and flips over to be tangent to the steering pulley 41 under the action of gravity. At this time, the inclination angles of the inclined surface and the upper surface of the rotating baffle 53 are consistent, so that impurities can roll along the inclined surface into the microbial degradation chamber 4.

[0063] Working principle: The floating sieve plate 51 is always kept on the liquid surface of the sewage treatment chamber 5 under the action of buoyancy, and the liquid in the liquid filter plate 32 and the rainwater pipe 21 enters the sewage treatment chamber 5 through the floating sieve plate 51, so that the solid impurities remain on the upper surface of the floating sieve plate 51. Since the inclined surface of the floating sieve plate 51 faces the microbial degradation chamber 4, the impurities roll down in the direction of the microbial degradation chamber 4 under the action of gravity. When the height of the floating sieve plate 51 is low, the rotating baffle 53 is supported by the inner wall and remains vertical to the horizontal plane, preventing the impurities from contacting the inner wall, and the floating sieve plate 51 is higher than the sewage treatment chamber 5. The floating sieve plate 51 itself has a certain thickness. When the liquid level reaches the highest point, the upper surface of the floating sieve plate 51 is higher than the sewage treatment chamber 5, the rotating baffle 53 loses the inner wall obstruction and flips over to be tangent to the steering pulley 41 under the action of gravity. At this time, the inclined surface and the upper surface of the rotating baffle 53 have the same inclination angle, so that the impurities can roll down along the inclined surface into the microbial degradation chamber 4.

[0064] When the floating screen plate 51 moves downward, the first end of the transmission belt 42 is pulled, and a portion of the transmission belt 42 on the winding pulley 46 is stretched, and the torsion spring is deformed and accumulates elastic potential energy, and then the limiting groove 43 is pulled upward, thereby driving the transmission rod 47 to swing upward, and turning up the wood chips and impurities at the bottom. When the floating screen plate 51 moves upward, the elastic potential energy accumulated in the torsion spring on the winding pulley 46 is released, and the transmission belt 42 is wound on the winding pulley 46. The transmission belt 42 pulls and assists the floating screen plate 51 to move upward, driving the limiting groove 43 to move downward, and the transmission rod 47 swings downward to contact the wood chips and impurities at the bottom.

[0065] At the same time, air is injected into the aeration pipe 56. The gas in the aeration pipe 56 enters below the liquid level of the sewage treatment chamber 5 to aerate the sewage, reduce odor residue, and promote the decomposition ability of microorganisms. The air pressure overcomes the elastic force of the elastic member 564 to open the waterproof plug 563. At this time, the gas flows outward along the cone surface of the waterproof plug 563, forming a pointed cone-shaped diffusion surface. When the gas flows through the air outlet 561, the flow rate increases and the pressure decreases. The agent is sucked to the end of the air outlet 561 under the action of the pressure difference, and then blown into the sewage by the gas. The agent is dispersed by the force of the gas blowing, driving the impeller 54 to rotate. Figure 5 In the state shown, the impeller 54 rotates, driving the sprocket 522 to transmit, thereby driving the rotating member 521 and the scraper 52 to swing to an inclined state. At this time, since the teeth rotate to the area where they are not engaged with the sprocket 522, the rotating member 521 and the scraper 52 are not driven by the sprocket 522, and the scraper 52 is in a weightless inclined state. Under the action of gravity, the scraper 52 swings down, thereby driving the rotating member 521 to rotate, and the teeth engage with the sprocket 522 again. Since the scraper 52 is a V-shaped structure with an anti-corrosion coating on the surface, as the scraper 52 swings, the two sides of the V-shaped structure continuously move the impurities on the inclined surface, thereby promoting the rolling of the impurities.

[0066] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mobile zero-emission environmentally friendly public toilet, comprising a mobile public toilet (1) and a partition (3) installed in the mobile public toilet (1) and provided with a feces passage (31) and a liquid filter plate (32), characterized in that: include: A sewage treatment chamber (5) is fixedly arranged in the mobile public toilet (1) and is located directly below the liquid filter plate (32), and a microbial degradation chamber (4) is fixedly arranged at the end thereof; A floating sieve plate (51) disposed in the sewage treatment chamber (5) and floating on the liquid surface, comprising an inclined surface facing the microbial degradation chamber (4), a plurality of scrapers (52) for moving debris are arranged in a linear array and rotatably disposed on the inclined surface, and an aeration pipe (56) for blowing air below the liquid surface and driving the scrapers (52) to swing; A collection trough (2) is fixedly arranged on a mobile public toilet (1), and is provided with a rainwater pipe (21) extending toward the upper surface of a floating screen plate (51).

2. A mobile zero-emission environmentally friendly public toilet according to claim 1, characterized in that: It also includes a reagent adding tank (55) mounted on the floating sieve plate (51), on which a feed port (562) is provided, and an air outlet (561) connected to the feed port (562) is fixedly provided on the aeration pipe (56), and the inner diameter of the air outlet (561) narrows along the air outlet direction.

3. A mobile zero-emission environmentally friendly public toilet according to claim 2, characterized in that: A plurality of impellers (54) are rotatably arranged on the floating screen plate (51), and the impellers (54) are located at the ends of the air outlet (561).

4. A mobile zero-emission environmentally friendly public toilet according to claim 2, characterized in that: The air outlet (561) port is provided with a waterproof plug (563) for sealing the feed opening (562), and the waterproof plug (563) is provided with an elastic member (564) for being closely attached to the air outlet (561) port.

5. A mobile zero-emission environmentally friendly public toilet according to claim 3, characterized in that: A rotating member (521) is fixedly provided on the scraper (52), and the rotating member (521) is transmission-connected to the impeller (54) via a sprocket (522); The scraper (52) has an inclined state during the rotation stroke of the impeller (54), and in the inclined state, the scraper (52) swings downward due to weightlessness.

6. A mobile zero-emission environmentally friendly public toilet according to claim 1, characterized in that: The scraper (52) is a V-shaped structure with an anti-corrosion coating on the surface.

7. The mobile zero-emission environmentally friendly public toilet according to claim 1, characterized in that: A turning rake (45) and a cutting roller (44) are rotatably arranged in the microbial degradation chamber (4), and the rake teeth of the turning rake (45) and the cutting blades of the cutting roller (44) are staggered.

8. The mobile zero-emission environmentally friendly public toilet according to claim 7, characterized in that: The turning rake (45) and the floating screen plate (51) are kept in synchronous motion via a linkage assembly.

9. A mobile zero-emission environmentally friendly public toilet according to claim 8, characterized in that: The linkage components include: A transmission belt (42) having a first end fixedly disposed on the floating screen plate (51); A reel pulley (46) is rotatably disposed in the microbial degradation chamber (4) and is used to reel in the transmission belt (42); A limiting groove (43) is fixedly arranged on the transmission belt (42) and is slidably matched with the turning rake (45).

10. A mobile zero-emission environmentally friendly public toilet according to claim 9, characterized in that: It also includes a steering pulley (41) rotatably arranged at the end of the sewage treatment chamber (5), the transmission belt (42) is wound around the steering pulley (41), and a rotating baffle (53) is rotatably arranged on the floating screen plate (51) and can abut against the steering pulley (41).

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