CN110656611A

CN110656611A - Environmental sanitation equipment

Info

Publication number: CN110656611A
Application number: CN201911137193.4A
Authority: CN
Inventors: 董建刚; 王爱平
Original assignee: Beijing City Machine Scanning Service Co Ltd
Current assignee: Beijing City Machine Scanning Service Co Ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-01-07

Abstract

The present invention provides a sanitation apparatus, comprising: the equipment comprises an equipment main body, a control device and a control device, wherein the equipment main body comprises a travelling mechanism and a mounting frame arranged on the travelling mechanism; the steam generator assembly comprises an electromagnetic induction steam generator, and the electromagnetic induction steam generator is arranged on the mounting frame; the cleaning assembly is arranged on the mounting frame and communicated with the steam generator assembly to clean the ground. The technical scheme of the invention effectively solves the problems of water source waste and high cleaning cost of sanitation equipment in the prior art.

Description

Environmental sanitation equipment

Technical Field

The invention relates to the technical field of environmental sanitation equipment, in particular to environmental sanitation equipment.

Background

The environmental sanitation equipment is used for cleaning the road surfaces of cities, parks, districts, markets and the like. In the prior art, when sanitation equipment is cleaned, cleaning water with certain pressure is sprayed to clean positions to meet requirements, and then the cleaned water is recycled to the sanitation equipment and then is subjected to centralized treatment, so that a large amount of sewage is generated. The problems of increased sewage treatment cost, water source waste and the like are caused by more generated sewage.

Disclosure of Invention

The invention mainly aims to provide sanitation equipment to solve the problems that water sources are wasted and cleaning cost is high when the sanitation equipment in the prior art works.

In order to achieve the above object, the present invention provides a sanitation device, comprising: the equipment comprises an equipment main body, a control device and a control device, wherein the equipment main body comprises a travelling mechanism and a mounting frame arranged on the travelling mechanism; the steam generator assembly comprises an electromagnetic induction steam generator, and the electromagnetic induction steam generator is arranged on the mounting frame; the cleaning assembly is arranged on the mounting frame and communicated with the steam generator assembly to clean the ground.

Further, the electromagnetic induction steam generator comprises a heating pipe and an induction coil, the induction coil is arranged on the outer side of the circumferential direction of the heating pipe, the induction coil can be communicated with a power supply, and a water flow channel is formed in the heating pipe.

Further, the sanitation equipment comprises a clean water tank assembly, and a water outlet of the clean water tank assembly is communicated with a water inlet of the electromagnetic induction steam generator.

Further, the steam generator component further comprises a water inlet structure, the water inlet structure comprises a water inlet pipeline, a water pump and a one-way valve, the first end of the water inlet pipeline is communicated with the water outlet of the water tank component, the second end of the water inlet pipeline is communicated with the water inlet of the electromagnetic induction steam generator, the water pump and the one-way valve are both arranged on the water inlet pipeline, and the one-way valve is arranged between the second ends of the water pump and the water inlet pipeline.

Further, the water inlet mechanism further comprises a flow meter and a filter, the flow meter is arranged on the water inlet pipeline between the one-way valve and the second end of the water inlet pipeline, and the filter is arranged on the water inlet pipeline between the water pump and the first end of the water inlet pipeline.

Further, the steam generator assembly includes a steam box in communication with the outlet of the electromagnetic induction steam generator.

Furthermore, the steam generator component also comprises a return pipe, the first end of the return pipe is communicated with the steam box, and the second end of the return pipe is communicated with the water inlet pipeline of the second end of the one-way valve and the water inlet pipeline.

Further, the steam generator component further comprises a pressure release valve and a pressure gauge, and the pressure release valve and the pressure gauge are both arranged on the steam box.

Further, the cleaning assembly includes a steam vent coupled to the steam generator assembly.

Further, clean subassembly still includes steam communicating pipe, and the steam spout is a plurality of, and a plurality of steam spouts are linked together through steam communicating pipe with the steam generator subassembly.

Further, the cleaning assembly further comprises a steam outlet pipe, and the plurality of steam nozzles are arranged on the steam outlet pipe.

Further, the cleaning assembly comprises a cavity and a steam suction opening, the steam nozzle is arranged in the cavity, and the steam suction opening is located on the cavity.

Further, the cavity includes preceding baffle, backplate, roof and curb plate, and preceding baffle, backplate, roof and curb plate enclose and establish into the adsorption space, and the steam suction opening sets up on the roof.

Further, the cleaning assembly further comprises an air supplement port, and the air supplement port is arranged on the top plate.

Further, the sanitation equipment also comprises a sewage tank assembly and a negative pressure suction assembly, wherein the sewage tank assembly is communicated with the cleaning assembly through the negative pressure suction assembly so as to discharge used steam into the sewage tank assembly.

Furthermore, the negative pressure suction assembly comprises a suction inlet, a water outlet and an air outlet which are communicated with each other, the suction inlet of the negative pressure suction assembly is communicated with the cavity, the water outlet of the negative pressure suction assembly is communicated with the sewage tank assembly, and the air outlet of the negative pressure suction assembly is communicated with the atmosphere.

Further, inhale the negative pressure subassembly and include the gas-liquid separation structure, the gas-liquid separation structure sets up between inhaling the sunction inlet of negative pressure subassembly and inhaling the gas outlet of negative pressure subassembly.

Further, the sanitation equipment is a sweeping robot or a pure electric sanitation vehicle.

By applying the technical scheme of the invention, when the sanitation equipment is cleaned, the electromagnetic induction steam generator generates steam, the generated steam has certain pressure, the steam with certain pressure is cleaned through the cleaning component, and the use amount of water and the amount of generated sewage are greatly reduced compared with the water cleaning through the steam cleaning. The technical scheme of the invention effectively solves the problems of water source waste and high cleaning cost of sanitation equipment in the prior art.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of a sanitation apparatus according to the present invention;

FIG. 2 shows a schematic cross-sectional view of an electromagnetic induction evaporator of the sanitation apparatus of FIG. 1; and

fig. 3 shows a process schematic of a steam generator assembly of the sanitation plant of fig. 1.

Wherein the figures include the following reference numerals:

10. an apparatus main body; 11. a traveling mechanism; 12. a mounting frame; 20. a steam generator assembly; 21. an electromagnetic induction steam generator; 22. a water inlet pipeline; 23. a water pump; 24. a one-way valve; 25. a flow meter; 26. a filter; 27. a steam box; 28. a return pipe; 30. a cleaning assembly; 31. a cavity; 40. a waste tank assembly; 50. a negative pressure suction assembly; 60. clear water tank assembly.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

As shown in fig. 1 and 2, the sanitation apparatus of the present embodiment includes: a device body 10, a steam generator assembly 20 and a cleaning assembly 30. The apparatus main body 10 includes a traveling mechanism 11 and a mounting frame 12 provided on the traveling mechanism 11. The steam generator assembly 20 comprises an electromagnetic induction steam generator 21, the electromagnetic induction steam generator 21 being arranged on the mounting frame 12. A cleaning assembly 30 is disposed on the mounting frame 12, the cleaning assembly 30 communicating with the steam generator assembly 20 for cleaning the floor.

By applying the technical scheme of the embodiment, when the sanitation equipment is cleaned, the electromagnetic induction steam generator 21 generates steam, the generated steam has certain pressure, the steam with certain pressure is cleaned through the cleaning assembly 30, and the use amount of water and the amount of generated sewage are greatly reduced compared with the water cleaning by using the steam. The technical scheme of this embodiment has solved the extravagant water source of sanitation equipment among the prior art in the work effectively, clean great problem of cost.

As shown in fig. 1 and fig. 2, in the technical solution of the present embodiment, the electromagnetic induction steam generator 21 includes a heating pipe and an induction coil, the induction coil is disposed at the circumferential outer side of the heating pipe, the induction coil can be communicated with a power supply, and a water flow passage is formed in the heating pipe. The induction coil is wound on the circumferential outer side of the heating pipe, and water is heated into steam through the electromagnetic induction principle. The electromagnetic induction heating technology is abbreviated as IH technology, is developed on the basis of Faraday's law of induction, and is an application form of Faraday's law of induction. The electromagnetic induction heating is to generate current in the heated material by using an electromagnetic induction method, and achieves the heating purpose by depending on the energy of the eddy current. In short, the heating device is used for generating alternating current so as to generate an alternating magnetic field, and then the alternating magnetic field is used for generating eddy current to achieve the heating effect. Electric energy (current magnetic effect) -magnetic field energy (electromagnetic induction effect) -electric energy (eddy current thermal effect) -internal energy (heating body). 1. The energy-saving effect is good, the heat loss is small, and the efficiency is high. Since the induction coil is not in direct contact with the metal being heated, energy is transferred by electromagnetic induction. The thermal efficiency is high and reaches more than 85 percent. 2. The temperature rise is fast, and because the resistance of the metal heating coil is very small, stronger eddy current can be generated by smaller induced electromotive force. So that a large amount of joule heat can be generated in the metal. Meanwhile, the temperature of the melt in the coil pipe is increased very fast due to less heat loss and high heat efficiency. 3. The environment-friendly effect is good, the electromagnetic induction heating method can obviously reduce the environmental temperature, and the energy conservation is environment-friendly. 4. The service life is long, the electromagnetic heating device adopts a specially-made coil and a semiconductor device, the continuous operation temperature of the coil is only about 100 ℃, and the average fault-free operation time can reach 3 years.

As shown in fig. 1 and fig. 2, in the solution of the present embodiment, the sanitation equipment includes a clean water tank assembly 60, and a water outlet of the clean water tank assembly 60 is communicated with a water inlet of the electromagnetic induction steam generator 21. The clean water tank assembly 60 is arranged so that the sanitation equipment does not need an external water source, which greatly improves the universality of the sanitation equipment. It should be noted that the sanitation equipment may be a floor cleaning vehicle, a floor cleaning robot, or the like. The steam generated by the electromagnetic induction steam generator 21 cleans the ground, thus greatly saving the use amount of clean water. Taking a road sweeper as an example, the sequence from front to back is that a vehicle head, a power battery, a clean water tank assembly 60 and an electromagnetic induction steam generator 21 are arranged in parallel, and then a negative pressure suction assembly 50 and a sewage tank assembly 40 are arranged. The electromagnetic induction steam generator 21 may be directly connected to the cleaning assembly 30 by a steam line, or the steam generator assembly 20 may comprise a steam box 27, the steam box 27 being in communication with an outlet of the electromagnetic induction steam generator 21.

As shown in fig. 3, in the technical solution of this embodiment, the steam generator assembly 20 further includes a water inlet structure, the water inlet structure includes a water inlet pipeline 22, a water pump 23 and a check valve 24, a first end of the water inlet pipeline 22 is communicated with a water outlet of the water tank assembly 60, a second end of the water inlet pipeline 22 is communicated with a water inlet of the electromagnetic induction steam generator 21, the water pump 23 and the check valve 24 are both disposed on the water inlet pipeline 22, and the check valve 24 is disposed between the water pump 23 and the second end of the water inlet pipeline 22. The provision of the one-way valve 24 prevents steam from being forced into the clean water tank assembly 60 due to an excessive pressure within the steam generator 21. The structure ensures the use safety of the environmental sanitation equipment. The water pump 23 is arranged to provide a power source for the fresh water for generating steam, and particularly, the flow rate of the water pump 23 can be adjusted. This embodiment still includes control structure, and water pump 23, manometer all link to each other with control structure, come the flow of adjusting water pump 23 and the power of steam generator 21 through measuring the pressure in steam chest 27.

As shown in fig. 3, in the solution of the present embodiment, the water inlet mechanism further includes a flow meter 25 and a filter 26, the flow meter 25 is disposed on the water inlet pipe 22 between the check valve 24 and the second end of the water inlet pipe 22, and the filter 26 is disposed on the water inlet pipe 22 between the water pump 23 and the first end of the water inlet pipe 22. The filter 26 is provided to prevent some particulate matter or other contaminants from entering the steam generator 21. The water inlet mechanism may further include a water purifier disposed between the filter 26 and the water pump 23 to remove calcium ions from the clean water, thereby preventing excessive scale from being generated in the steam generator 21.

As shown in fig. 3, in the present embodiment, the steam generator assembly 20 further includes a return pipe 28, a first end of the return pipe 28 is communicated with the steam box 27, and a second end of the return pipe 28 is communicated with the check valve 24 and the water inlet pipe 22 of the second end of the water inlet pipe 22. The arrangement of the return pipe 28 ensures the recycling and return of the condensed water, and saves water resources. Specifically, the steam generator assembly 20 further includes a pressure relief valve and a pressure gauge, both disposed on the steam box 27. The structure ensures the use safety of the environmental sanitation equipment.

In the solution of the present embodiment, as shown in fig. 1, the cleaning assembly 30 comprises a steam nozzle, which is connected to the steam generator assembly 20. The arrangement of the steam nozzle enables the sanitation device to clean the ground with steam as required. Be provided with the solenoid valve between steam spout and the electromagnetic induction steam generator 21, specifically, sanitation equipment still includes control structure, and the solenoid valve links to each other with control structure, and when the pressure of steam reached the setting value, control structure control solenoid opened, and the steam that has certain pressure like this sprays ground, cleans the pollutant on ground, inhales negative pressure component 50 and adsorbs the mixture of pollutant and steam to in the sewage case subassembly 40.

As shown in fig. 1, in the technical solution of this embodiment, the cleaning assembly 30 further includes a steam communicating pipe, the steam nozzle is multiple, and the multiple steam nozzles are communicated with the steam generator assembly 20 through the steam communicating pipe. The provision of multiple steam vents allows for a greater area of floor cleaning. Taking the sweeper as an example, the plurality of steam nozzles are arranged at intervals along the width direction of the sweeper. Each steam nozzle and the ground have a certain inclination angle, and the inclination angle is larger than zero degree and smaller than 90 degrees. Each steam vent has a width.

As shown in fig. 1, in the solution of the present embodiment, the cleaning assembly 30 further includes a steam outlet pipe, and a plurality of steam nozzles are disposed on the steam outlet pipe. The arrangement of the steam outlet pipe facilitates the arrangement of a plurality of steam nozzles. Taking the ground washing vehicle as an example, the width of the steam outlet pipe is matched with the width of the ground washing vehicle.

As shown in FIG. 1, in the solution of the present embodiment, the cleaning assembly 30 includes a cavity 31 and a steam suction opening, the steam nozzle is disposed in the cavity 31, and the steam suction opening is located on the cavity 31. The steam suction port is arranged in the cavity 31, so that negative pressure formed in the cavity 31 when the steam suction port adsorbs mixture of garbage and steam is larger, and the mixture of the garbage and the steam is easily adsorbed into the sewage tank assembly 40.

As shown in fig. 1, in the solution of this embodiment, the cavity 31 includes a front baffle, a rear baffle, a top plate and side plates, the front baffle, the rear baffle, the top plate and the side plates enclose an adsorption space, and the steam suction port is disposed on the top plate. The structure has lower processing cost. Specifically, preceding baffle is rubber materials, and preceding baffle can elastic deformation like this, and great rubbish also can get into the adsorption space from preceding baffle, and preceding baffle, backplate, roof, curb plate and ground form a relative confined space (the non-absolute closure, the gaseous volume of external environment income is less than the volume that the steam suction inlet siphoned away, forms the negative pressure like this and brings rubbish into in the sewage case subassembly). The cleaning assembly further comprises a hydraulic structure, the hydraulic structure is fixed on the equipment main body 10 and connected with the cavity, the hydraulic structure drives the cavity to move up and down, when the environmental sanitation equipment is in a working state, the cavity is put down to a proper height from the ground, and when the environmental sanitation equipment is in a non-working state, the cavity is lifted up. The hydraulic structure can also be an electric push rod structure when the sanitation equipment is small and does not need large force according to specific conditions.

As shown in fig. 1, in the solution of the present embodiment, the cleaning assembly 30 further includes an air supplement port, and the air supplement port is disposed on the top plate. The air supply port is arranged to ensure that the air entering the cavity can generate a certain stirring effect on the garbage, the dust and the like in the cavity. The agitated trash and dust are more easily adsorbed into the sump assembly 10. Thus, the cleaning effect of the floor is better. The angle of the air entering the adsorption space of the air supplementing ports is arranged at an angle with the ground, the number of the air supplementing ports can be multiple, and the number of the steam suction ports can also be multiple

As shown in fig. 1, in the solution of the present embodiment, the sanitation device further includes a sewage tank assembly 40 and a negative pressure suction assembly 50, and the sewage tank assembly 40 communicates with the cleaning assembly 30 through the negative pressure suction assembly 50 to discharge used steam into the sewage tank assembly 40. The arrangement of the negative pressure absorbing assembly 50 enables the garbage, dust and the like to be cleaned through absorption, and the structure is compact and the manufacturing cost is low.

As shown in fig. 1, in the technical solution of this embodiment, the negative pressure suction assembly 50 includes a suction inlet, a water outlet and an air outlet which are communicated with each other, the suction inlet of the negative pressure suction assembly 50 is communicated with the cavity 31, the water outlet of the negative pressure suction assembly 50 is communicated with the sewage tank assembly 40, and the air outlet of the negative pressure suction assembly 50 is communicated with the atmosphere. Inhale negative pressure subassembly 50 and include fan, filtration and wind channel, the steam suction inlet passes through the wind channel and links to each other with the fan, and filtering mechanism sets up on the wind channel, and filtration includes cyclone, and cyclone carries out the initial gross separation, with the rubbish and the water droplet separation of granule, and filtration still includes the filter core, and the filter core can further filter, follows the requirement that the fan combustion gas accords with the environmental protection like this. When the sanitation equipment is used for cleaning the ground, less clean water is used, and less sewage is generated. Greatly saves the consumption of clean water and the cost of sewage treatment.

As shown in fig. 1, in the solution of the present embodiment, the negative pressure suction assembly 50 includes a gas-liquid separation structure, and the gas-liquid separation structure is disposed between the suction inlet of the negative pressure suction assembly 50 and the gas outlet of the negative pressure suction assembly 50. The structure enables the discharged gas to meet the requirement of environmental protection.

It should be noted that the sanitation equipment is a pure electric sweeping robot or a pure electric sanitation vehicle.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmental sanitation apparatus, comprising:

the equipment comprises an equipment main body (10), wherein the equipment main body (10) comprises a walking mechanism (11) and a mounting rack (12) arranged on the walking mechanism (11);

a steam generator assembly (20), the steam generator assembly (20) comprising an electromagnetic induction steam generator (21), the electromagnetic induction steam generator (21) being disposed on the mounting bracket (12);

a cleaning assembly (30), the cleaning assembly (30) being disposed on the mounting bracket (12), the cleaning assembly (30) being in communication with the steam generator assembly (20) for cleaning a floor.

2. Sanitation device according to claim 1, characterized in that the electromagnetic induction steam generator (21) comprises a heating pipe and an induction coil, the induction coil being arranged circumferentially outside the heating pipe, the induction coil being communicable with a power source, the heating pipe forming a water flow channel therein.

3. The sanitation device of claim 2, comprising a clean water tank assembly (60), a water outlet of the clean water tank assembly (60) being in communication with a water inlet of the electromagnetic induction steam generator (21).

4. The sanitation apparatus of claim 3, wherein the steam generator assembly (20) further comprises a water inlet structure comprising a water inlet line (22), a water pump (23) and a one-way valve (24), a first end of the water inlet line (22) being in communication with a water outlet of the water tank assembly (60), a second end of the water inlet line (22) being in communication with a water inlet of the electromagnetic induction steam generator (21), the water pump (23) and the one-way valve (24) both being disposed on the water inlet line (22), the one-way valve (24) being disposed between the water pump (23) and the second end of the water inlet line (22).

5. Sanitation device according to claim 4, characterized in that said water inlet means further comprise a flow meter (25) and a filter (26), said flow meter (25) being arranged on said water inlet line (22) between said one-way valve (24) and a second end of said water inlet line (22), said filter (26) being arranged on said water inlet line (22) between said water pump (23) and a first end of said water inlet line (22).

6. The sanitation apparatus according to claim 4, wherein the steam generator assembly (20) includes a steam tank (27), the steam tank (27) being in communication with an outlet of the electromagnetic induction steam generator (21).

7. Sanitation device according to claim 6, characterized in that said steam generator assembly (20) further comprises a return pipe (28), a first end of said return pipe (28) communicating with said steam tank (27), a second end of said return pipe (28) communicating with said one-way valve (24) and said water inlet line (22) of a second end of said water inlet line (22).

8. The sanitation device of claim 7, wherein the steam generator assembly (20) further comprises a pressure relief valve and a pressure gauge, both disposed on the steam tank (27).

9. Sanitation device according to any of claims 1 to 8, characterized in that said cleaning assembly (30) comprises a steam jet, which is connected to said steam generator assembly (20).

10. The sanitation device of claim 9, wherein the cleaning assembly (30) further comprises a steam communication pipe, the steam vent is plural in number, and the plural steam vents communicate with the steam generator assembly (20) through the steam communication pipe.

11. The sanitation device of claim 10, wherein the cleaning assembly (30) further comprises a steam outlet pipe, the plurality of steam vents being disposed on the steam outlet pipe.

12. Sanitation device according to claim 9, characterized in that the cleaning assembly (30) comprises a cavity (31) and a steam suction opening, the steam nozzle being arranged in the cavity (31) and the steam suction opening being located on the cavity (31).

13. Sanitation device according to claim 12, characterized in that the chamber (31) comprises a front baffle, a back baffle, a top plate and side plates enclosing an adsorption space, the steam suction opening being provided in the top plate.

14. The sanitation device of claim 11, wherein the cleaning assembly (30) further comprises an air supplement port disposed on the top plate.

15. The sanitation device of claim 12, further comprising a foul water tank assembly (40) and a suction negative pressure assembly (50), the foul water tank assembly (40) communicating with the cleaning assembly (30) through the suction negative pressure assembly (50) to discharge used steam into the foul water tank assembly (40).

16. The sanitation device of claim 15, wherein the suction assembly (50) comprises a suction inlet, a water outlet and an air outlet which are communicated with each other, the suction inlet of the suction assembly (50) is communicated with the cavity (31), the water outlet of the suction assembly (50) is communicated with the sewage tank assembly (40), and the air outlet of the suction assembly (50) is communicated with the atmosphere.

17. The sanitation apparatus of claim 16, wherein the suction sub-assembly (50) comprises a gas-liquid separation structure disposed between a suction inlet of the suction sub-assembly (50) and a gas outlet of the suction sub-assembly (50).

18. The sanitation device of claim 16, wherein said sanitation device is a sweeping robot or a purely electric sanitation vehicle.