Urine separation and recovery device for mobile toilet

Abstract

The utility model discloses a urine separating and recycling device for a mobile toilet, and relates to the technical field of urine recycling. A urine separating and recycling device for a mobile toilet comprises a urine collecting box and an excrement collecting box and further comprises a separating pipe and a connecting pipe, a feeding flange is arranged on the top of the separating pipe, filtering holes are formed in the bottom of the separating pipe, the connecting pipe is fixedly installed at the bottom of the separating pipe, and the liquid discharging end of the connecting pipe is connected with the urine collecting box. The discharging end of the separating pipe extends into the excrement collecting box; a transmission assembly is arranged on the separation pipe; according to the utility model, by adopting a mechanical separation mode of auger transmission and the extrusion plate, liquid dung is pushed to move in the separation pipe, urine rapidly permeates into the connecting pipe through the filter holes, primary solid-liquid separation is realized, and secondary extrusion is carried out before excrement is discharged through the cooperation of the extrusion plate and the spring, so that the separation efficiency is improved, and the problem of easy blockage of traditional static filtration is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of urine recycling technology, specifically, it relates to a mobile toilet urine separation and recycling device. Background Technology

[0002] Portable toilets, as temporary sanitation facilities, play an important role in outdoor activities, construction sites, and emergency locations.

[0003] Traditional portable toilets typically use a mixed collection method to store feces and urine together, which not only increases the difficulty of subsequent treatment but also easily produces odors and bacteria.

[0004] To achieve resource utilization, urine-separating toilets have emerged in existing technologies. These toilets use physical separation devices to collect urine and feces separately, facilitating the extraction of valuable components such as urokinase from the urine and the composting of the feces. However, existing urine separation devices still have the following technical shortcomings:

[0005] I. Traditional separation devices mostly use static filtration or simple screens, which can easily cause blockages in viscous feces, resulting in incomplete separation and affecting the subsequent treatment effect.

[0006] Second, the separated urine needs to be stored at low temperatures to maintain its bioactive components, but existing devices lack efficient refrigeration systems, making it difficult to achieve constant temperature storage in outdoor environments.

[0007] Third, the drying of feces relies on natural air drying or electric heating, which is energy-intensive and inefficient, and the exhaust gas in the drying process is not purified, which can easily cause environmental pollution.

[0008] In view of the above problems, a mobile toilet urine separation and recycling device is proposed. Utility Model Content

[0009] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a mobile toilet urine separation and recycling device that can overcome or at least partially solve the above problems.

[0010] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0011] A portable toilet urine separation and recycling device includes a urine collection tank and a feces collection tank, and further includes: a separation pipe with a feed flange at the top and filter holes at the bottom, and a connecting pipe fixedly installed at the bottom of the separation pipe, wherein the discharge end of the connecting pipe is connected to the urine collection tank, and the discharge end of the separation pipe extends into the feces collection tank; a transmission component is provided on the separation pipe, and a squeezing component is provided in the feces collection tank; a heat exchange pipe is fixedly installed on the urine collection tank, and a hot and cold air source section is provided at the bottom of the connecting pipe, wherein the cold air end of the hot and cold air source section is connected to the heat exchange pipe, and the hot air end of the hot and cold air source section is connected to the feces collection tank.

[0012] In a preferred embodiment of this utility model: a ventilation box that runs vertically through the feces collection box is fixedly installed inside the feces collection box, a mesh screen is fixedly installed on the inner side of the ventilation box, and a sealing base plate is fixedly and slidably installed at the bottom of the ventilation box.

[0013] In a preferred embodiment of the present invention, the transmission component includes a mounting shaft rotatably mounted on the separation tube, and an auger is fixedly mounted on the mounting shaft.

[0014] In a preferred embodiment of this utility model: a mounting frame is fixedly installed on the urine collection box and the feces collection box, a motor is fixedly installed on the mounting frame, and a reciprocating screw is rotatably installed on the mounting frame and the ventilation box. The reciprocating screw is threadedly connected to the sealing base plate. The output shaft of the motor is connected to the reciprocating screw and the mounting shaft through a pulley group. Both the reciprocating screw and the mounting shaft are connected to the pulley group through a ratchet mechanism, and the transmission directions of the two ratchet mechanisms are opposite.

[0015] In a preferred embodiment of the present invention, the squeezing assembly includes an installation cylinder disposed inside the feces collection box and fixed to the installation shaft. A squeezing plate is slidably mounted on the installation cylinder. The squeezing plate is slidably connected to the installation shaft. A spring is sleeved on the installation shaft. The two ends of the spring abut against the squeezing plate and the installation cylinder, respectively.

[0016] In a preferred embodiment of this utility model: the hot and cold air source unit includes a vortex tube fixedly installed at the bottom of the connecting pipe and a compression pump fixedly installed at the bottom of the connecting pipe. The output end of the compression pump is connected to the vortex tube. The hot air discharge end of the vortex tube is fixedly connected to the fecal collection box through a pipe. The cold air discharge end of the vortex tube is fixedly installed with an insulation pipe. The output end of the insulation pipe is fixed with a diversion pipe. The diversion pipe is fixedly connected to the heat exchange tube.

[0017] In a preferred embodiment of this utility model, an exhaust pipe is fixedly installed on the top of the fecal collection box, and an adsorption block is provided inside the exhaust pipe.

[0018] In a preferred embodiment of this utility model, a drain pipe is fixedly installed at the bottom of the urine collection box, and a control valve is provided on the drain pipe.

[0019] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: This utility model uses a mechanical separation method of auger conveyor and extrusion plate to push the fecal water to move in the separation tube. Urine quickly seeps into the connecting tube through the filter holes to achieve preliminary solid-liquid separation. The extrusion plate and spring work together to perform secondary extrusion before the feces are discharged, which improves the separation efficiency. It is especially suitable for viscous feces and avoids the problem of easy clogging in traditional static filtration. The vortex tube cooling introduces cold air into the heat exchange tube to reduce the temperature of urine and maintain the stability of bioactive components such as urokinase, which is convenient for subsequent pharmaceutical or fertilizer extraction. The hot air generated by the vortex tube dries the feces, accelerates water evaporation, reduces the volume of feces, facilitates composting or incineration, reduces transportation costs, and the high-temperature drying can kill pathogens and improve hygiene and safety. The exhaust gas generated during the feces drying process is filtered by activated carbon / zeolite adsorption blocks to remove odors and harmful gases and reduce environmental pollution.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a three-dimensional structural diagram of a mobile toilet urine separation and recycling device proposed in this utility model. Figure 1 ;

[0023] Figure 2 This is a three-dimensional structural diagram of a mobile toilet urine separation and recycling device proposed in this utility model. Figure 2 ;

[0024] Figure 3 This is a main sectional view of a mobile toilet urine separation and recycling device proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the pulley assembly of a mobile toilet urine separation and recycling device proposed in this utility model.

[0026] In the diagram: 1. Urine collection tank; 2. Drain pipe; 3. Control valve; 4. Feces collection tank; 5. Separation pipe; 6. Mounting shaft; 7. Feed flange; 8. Screw; 9. Mounting cylinder; 10. Spring; 11. Extrusion plate; 12. Ventilation box; 13. Mesh screen; 14. Sealing base plate; 15. Mounting frame; 16. Reciprocating screw; 17. Pulley assembly; 18. Motor; 19. Filter hole; 20. Connecting pipe; 21. Vortex tube; 22. Compression pump; 23. Heat exchange tube; 24. Insulation tube; 25. Diverter pipe; 26. Exhaust pipe; 27. Adsorption block. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0028] Example: Refer to Figures 1-4 A mobile toilet urine separation and recycling device includes a urine collection tank 1 and a feces collection tank 4, and further includes: a separation pipe 5 with a feeding flange 7 at the top and a filter hole 19 at the bottom, and a connecting pipe 20 fixedly installed at the bottom of the separation pipe 5. The discharge end of the connecting pipe 20 is connected to the urine collection tank 1, and the discharge end of the separation pipe 5 extends into the feces collection tank 4. A transmission component is provided on the separation pipe 5, and a squeezing component is provided in the feces collection tank 4. A heat exchange pipe 23 is fixedly installed on the urine collection tank 1, and a hot and cold air source section is provided at the bottom of the connecting pipe 20. The cold air end of the hot and cold air source section is connected to the heat exchange pipe 23, and the hot air end of the hot and cold air source section is connected to the feces collection tank 4.

[0029] In use, the discharge end of the septic pump unit is connected to the inlet flange 7, and the septic pump unit is connected to the discharge end of the mobile toilet. Then, the septic pump unit is started to pump the sewage in the temporary storage compartment of the mobile toilet into the separation pipe 5. After the sewage enters the separation pipe 5, the transmission component drives the sewage to move in the separation pipe 5. During the movement, the urine falls into the connecting pipe 20 through the filter hole 19 under the action of gravity. It is then conducted into the urine collection tank 1 through the connecting pipe 20. Then, the feces enter the feces collection tank 4 under the transmission of the transmission component. During this process, it works with the pressurization component to promote the separation of sewage and water. Then, the separated feces are discharged into the feces collection tank 4. Then, the hot and cold air source generates hot air and cold air. The cold air is transmitted to the heat exchange pipe 23 to reduce the temperature of the urine and preserve the urine, which is convenient for the subsequent extraction of valuable substances such as urokinase in the urine. The hot air enters the feces collection tank 4 to dry the feces, which is convenient for later composting.

[0030] Reference Figures 1-4A ventilation box 12, which runs vertically through the feces collection box 4, is fixedly installed inside the feces collection box 4. A mesh screen 13 is fixedly installed on the inner side of the ventilation box 12, and a sealing base plate 14 is fixedly and slidably installed at the bottom of the ventilation box 12. The transmission assembly includes a mounting shaft 6 rotatably mounted on the separation pipe 5, and an auger 8 is fixedly mounted on the mounting shaft 6. A mounting frame 15 is fixedly mounted on the urine collection box 1 and the feces collection box 4. A motor 18 is fixedly mounted on the mounting frame 15. A reciprocating screw 16 is rotatably mounted on the mounting frame 15 and the ventilation box 12. The reciprocating screw 16 is threadedly connected to the sealing base plate 14. The output shaft of the motor 18 is connected to the reciprocating screw 16 and the mounting shaft 6 through a pulley group 17. Both the reciprocating screw 16 and the mounting shaft 6 are connected to the pulley group 17 through a ratchet mechanism, and the transmission directions of the two ratchet mechanisms are opposite.

[0031] Starting motor 18 and controlling the rotation direction of its rotor, in conjunction with the ratchet mechanism, controls the rotation of mounting shaft 6 or reciprocating screw 16. That is, when motor 18 drives mounting shaft 6 to rotate, reciprocating screw 16...

[0032] After entering the feces collection box 4, the feces fall into the ventilation box 12. The outer wall of the ventilation box 12 and the feces collection box 4 are provided with a gap for the flow of hot air, which facilitates the diversion of hot air and prevents the bottom of the ventilation box 12 from being filled with feces, thus reducing the drying effect.

[0033] Reference Figure 3 The squeezing assembly includes an installation cylinder 9 disposed inside the feces collection box 4 and fixed to the installation shaft 6. A squeezing plate 11 is slidably mounted on the installation cylinder 9. The squeezing plate 11 is slidably connected to the installation shaft 6. A spring 10 is sleeved on the installation shaft 6. The two ends of the spring 10 abut against the squeezing plate 11 and the installation cylinder 9, respectively.

[0034] During use, the auger 8 drives the feces into the feces collection box 4. Just before discharge, the squeezing plate 11 works with the auger 8 to squeeze the feces. When the thrust exceeds the preload of the spring 10, the spring 10 contracts, and the squeezing plate 11 moves towards the mounting cylinder 9. This allows the feces to fall into the ventilation box 12.

[0035] Reference Figure 1 and Figure 2 The hot and cold air source unit includes a vortex tube 21 fixedly installed at the bottom of the connecting pipe 20 and a compressor pump 22 fixedly installed at the bottom of the connecting pipe 20. The output end of the compressor pump 22 is connected to the vortex tube 21. The hot air discharge end of the vortex tube 21 is fixedly connected to the fecal collection box 4 through a pipe. The cold air discharge end of the vortex tube 21 is fixedly installed with an insulation pipe 24. The output end of the insulation pipe 24 is fixed with a diversion pipe 25. The diversion pipe 25 is fixedly connected to the heat exchange tube 23.

[0036] When in use, the compressor sends compressed air into the vortex tube 21. After heat exchange inside the vortex tube 21, the cold and hot are separated. Finally, the cold air is diverted through the splitter tube 25 into the heat exchange tube 23 to exchange heat with the urine, while the hot air enters the feces collection box 4 to dry the feces.

[0037] Reference Figure 1 The top of the fecal collection box 4 is fixedly equipped with an exhaust pipe 26, and an adsorption block 27 (activated carbon or zeolite molecular sieve) is installed inside the exhaust pipe 26. The exhaust gas discharged from the fecal collection box 4 is adsorbed and filtered by the adsorption block 27 to remove the waste gas before being discharged.

[0038] Reference Figure 2 A drain pipe 2 is fixedly installed at the bottom of the urine collection box 1. A control valve 3 is installed on the drain pipe 2. Opening the control valve 3 will discharge the urine for further processing.

[0039] In summary, this device has the following advantages:

[0040] 1. The auger 8 pushes the sewage to move in the separation pipe 5, and the urine quickly seeps into the connecting pipe 20 through the filter hole 19 to achieve preliminary solid-liquid separation. The cooperation of the squeezing plate 11 and the spring 10 squeezes the sewage a second time before the sewage is discharged, which significantly improves the separation efficiency (especially for viscous sewage). Compared with traditional static filtration, dynamic separation reduces the risk of clogging and is suitable for high-load mobile toilet scenarios.

[0041] Second, low-temperature preservation of urine can preserve the activity of components such as urokinase, which is convenient for pharmaceutical or fertilizer extraction. In addition, the volume of dried feces is reduced, making it directly suitable for composting or incineration, reducing transportation costs while inhibiting or even killing pathogens in feces.

[0042] Third, after the waste gas from the drying of feces is adsorbed by activated carbon / zeolite, the odor in the waste gas can be removed, reducing the pollution of the environment caused by the waste gas emissions.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A portable toilet urine separation and recycling device, comprising a urine collection tank (1) and a feces collection tank (4), characterized in that, Also includes: A separation pipe (5) with a feed flange (7) at the top and a filter hole (19) at the bottom, and a connecting pipe (20) fixedly installed at the bottom of the separation pipe (5). The discharge end of the connecting pipe (20) is connected to the urine collection box (1), and the discharge end of the separation pipe (5) extends into the feces collection box (4). A transmission component is provided on the separation tube (5), and the transmission component extends into the feces collection box (4) where a squeezing component is provided; A heat exchange tube (23) is fixedly installed on the urine collection box (1). A hot and cold air source is provided at the bottom of the connecting pipe (20). The cold air end of the hot and cold air source is connected to the heat exchange tube (23), and the hot air end of the hot and cold air source is connected to the feces collection box (4).

2. The portable toilet urine separation and recycling device according to claim 1, characterized in that, The fecal collection box (4) is fixedly installed with a ventilation box (12) that runs vertically through it. A mesh screen (13) is fixedly installed on the inner side of the ventilation box (12). A sealing base plate (14) is fixedly and slidably installed at the bottom of the ventilation box (12).

3. The mobile toilet urine separation and recycling device according to claim 2, characterized in that, The transmission assembly includes a mounting shaft (6) rotatably mounted on the separation tube (5), and an auger (8) is fixedly mounted on the mounting shaft (6).

4. The portable toilet urine separation and recycling device according to claim 3, characterized in that, A mounting bracket (15) is fixedly installed on the urine collection box (1) and the feces collection box (4). A motor (18) is fixedly installed on the mounting bracket (15). A reciprocating screw (16) is rotatably installed on the mounting bracket (15) and the ventilation box (12). The reciprocating screw (16) is threadedly connected to the sealing base plate (14). The output shaft of the motor (18) is connected to the reciprocating screw (16) and the mounting shaft (6) through a pulley group (17). The reciprocating screw (16) and the mounting shaft (6) are both connected to the pulley group (17) through a ratchet mechanism, and the transmission directions of the two ratchet mechanisms are opposite.

5. A mobile toilet urine separation and recycling device according to claim 4, characterized in that, The squeezing assembly includes an installation cylinder (9) disposed inside the feces collection box (4) and fixed to the installation shaft (6). A squeezing plate (11) is slidably mounted on the installation cylinder (9). The squeezing plate (11) is slidably connected to the installation shaft (6). A spring (10) is sleeved on the installation shaft (6). The two ends of the spring (10) abut against the squeezing plate (11) and the installation cylinder (9) respectively.

6. A portable toilet urine separation and recycling device according to claim 1, characterized in that, The hot and cold air source unit includes a vortex tube (21) fixedly installed at the bottom of the connecting pipe (20) and a compressor pump (22) fixedly installed at the bottom of the connecting pipe (20). The output end of the compressor pump (22) is connected to the vortex tube (21). The hot air discharge end of the vortex tube (21) is fixedly connected to the fecal collection box (4) through a pipe. The cold air discharge end of the vortex tube (21) is fixedly installed with a heat insulation pipe (24). The output end of the heat insulation pipe (24) is fixed with a diversion pipe (25). The diversion pipe (25) is fixedly connected to the heat exchange tube (23).

7. A portable toilet urine separation and recycling device according to claim 1, characterized in that, An exhaust pipe (26) is fixedly installed on the top of the fecal collection box (4), and an adsorption block (27) is provided inside the exhaust pipe (26).

8. A mobile toilet urine separation and recycling device according to claim 1, characterized in that, The bottom of the urine collection box (1) is fixedly installed with a drain pipe (2), and a control valve (3) is provided on the drain pipe (2).

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