Super-water-saving negative-pressure suction and drainage water storage and odor isolation toilet stool

Abstract

The utility model relates to a super-water-saving negative-pressure suction and drainage water storage and odor isolation toilet stool. The problem that super water saving and water storage and odor isolation cannot be achieved at the same time is solved. The downstream part of the flushing and discharging pipeline of the siphon trap of the toilet body is communicated with a negative pressure cabin extending up and down; a non-return valve for preventing air from entering the negative pressure cabin during suction and discharging is arranged on a transverse connecting pipeline between the bottom of the negative pressure cabin and the vertical bottom discharging pipe; the top opening of the negative pressure cabin is communicated with a negative pressure fan used for sucking air from the negative pressure cabin, an exhaust port of the negative pressure fan is communicated with the top of the vertical bottom discharge pipe through an exhaust pipeline, and an electric control valve used for supplementing water to the trap is arranged on a water inlet pipeline communicated with a water inlet. The water-saving toilet bowl has the advantages that the water-saving toilet bowl is water-saving in suction and drainage, the trap can strongly isolate odor, cleaning of the collecting surface of the toilet bowl is facilitated during suction and drainage, the main body integrated structure is convenient to manufacture and mount and more durable, and flushing and drainage can still be performed under siphon assistance in case of power failure.

Description

Technical Field

[0001] The utility model relates to a flush toilet, in particular to an ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet. Background Art

[0002] The negative pressure suction and drainage squat toilets, which are typically installed in passenger train toilets, have the distinct advantage of being super water-saving. However, they are far inferior to the commonly used water storage bay odor-isolating toilets in terms of valve odor isolation. In particular, existing vacuum toilets with negative pressure suction and drainage as the core feature are all separate and connected through pipes, with a large number of accessories, complex installation and operation processes, difficult maintenance, and high costs. Even so, they cannot be used during power outages. Commonly used non-negative pressure toilets require at least 4.5 liters of water for a single flush in order to maintain the siphon drainage effect. Therefore, there is a lack of and urgent need for a super water-saving negative pressure suction and drainage water storage odor-isolating toilet that has both the distinct advantage of being super water-saving and the advantage of strong odor isolation of a water storage bay. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned defects of the prior art and provide an ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet.

[0004] To achieve the above purpose, the utility model is a super water-saving negative pressure suction and discharge water storage and odor-proof toilet, the water inlet is connected to the flushing port through a flushing channel, and the bottom of the feces and urine collection bucket is an odor-proof water storage bay; the special feature is that the downstream part of the flushing and discharge pipeline of the siphon water storage bay of the water storage and odor-proof toilet body is connected to the negative pressure cabin extending up and down, and the horizontal connecting pipeline between the bottom of the negative pressure cabin and the vertical bottom discharge pipe is provided with a check valve to prevent air from entering the negative pressure cabin during suction and discharge; the top of the negative pressure cabin is connected to a negative pressure fan for sucking air from the negative pressure cabin, the exhaust port of the negative pressure fan is connected to the top of the vertical bottom discharge pipe through an exhaust pipeline, and an electric control valve for replenishing water in the water storage bay is provided on the water inlet pipeline connected to the water inlet; the electric control method includes: the electric control mechanism first opens and closes the negative pressure fan for suction and discharge, and then switches the electric control valve to replenish water to the water storage bay. The negative pressure fan and the electric control valve are opened and closed in sequence when the suction and discharge are started manually or inductively. It can be either a toilet seat that protrudes above the ground, or a squat toilet with the body level with the squat platform. The rear cover box can be set protruding from the squat platform for easy disassembly and maintenance. In this way, when the user stands up after using the toilet, the user manually or by induction turns on the negative pressure fan, which forms a negative pressure in the negative pressure chamber by suction and suction-closing the check valve, and then sucks the feces and urine at the bottom of the collection bucket and the odor-proof water into the negative pressure chamber through the cross-connecting pipeline for temporary storage. After that, the negative pressure chamber loses the negative pressure after the negative pressure fan is turned off. The feces and urine temporarily stored in the negative pressure chamber slide automatically into the vertical bottom discharge pipe by its own gravity with the help of mixed water, completing the discharge of feces and urine. Then, open the electric control valve to replenish water to the water storage bay, and close the electric control valve after the water replenishment is completed. At this point, the suction and discharge water replenishment process is completed, and the toilet is restored to its initial state ready to receive the next toilet visit. In this way, except for suction and discharge, the water storage bay is used to isolate odors in any other state, and during suction and discharge, the downstream of the water storage bay is in a negative pressure state, and the dirty air in the downstream waterway will not overflow due to the negative pressure, which can ensure that no odor will overflow in any state; the water consumption is limited to replenishing the water storage bay, which can greatly save water; of course, when replenishing the water storage bay, the feces and urine collection bucket can also be flushed and cleaned, and the negative pressure formed by the negative pressure cabin can not only suck away the feces and urine, but also clean the surface of the collection bucket by forced suction. Therefore, it has the advantages of super water saving in suction and discharge, strong odor isolation in the water storage bay, and it is also helpful to clean the collection surface of the toilet during suction and discharge, and it can still be flushed and discharged with the help of siphon when encountering a power outage.

[0005] As an optimization, the negative pressure fan and the electric control valve are electrically connected to the controller of the suction and discharge switch. After the suction and discharge switch is triggered, the controller first turns on the negative pressure fan. After the negative pressure fan runs for a certain period of time, the feces and urine collected at the bottom of the water storage and odor-proof toilet collection bucket and the stored water are sucked into the negative pressure chamber through the siphon water storage bay flushing and discharge pipeline through the negative pressure fan. The controller first turns off the negative pressure fan and then opens the electric control valve to replenish water to the water storage bay, and then closes the electric control valve. The control of the negative pressure fan and the electric control valve by closing first and then opening can ensure that the last added odor-proof water is not lost. The suction and discharge switch is a manual switch or a proximity switch that is activated after sensing proximity and then losing the proximity signal. Sensing proximity is sensing human proximity. Proximity switches can avoid contact with manual switches compared to manual switches, which is convenient and can avoid cross-contamination of hands by manual switches.

[0006] As an optimization, the exhaust pipe is an exhaust hose or the upper section is an upper exhaust hose and the lower section is a ceramic or polymer material lower body hard pipe integrated with the water storage and odor-isolating toilet body; the water inlet pipe is a water inlet hose. This is more convenient for manufacturing, installation and maintenance, especially the lower body hard pipe is maintenance-free and more durable. The water inlet is connected to the flushing ports at the front and rear ends of the upper part of the excrement and urine collection bucket through the circular flushing water channel on the top of the excrement and urine collection bucket. In this way, when replenishing water, it also has the function of flushing urine in front and flushing feces in the back, which is beneficial to the self-cleaning of the excrement and urine collection bucket. It is more preferred that the water inlet is connected to the front and rear ends of the upper part of the excrement and urine collection bucket and the flushing ports distributed in a ring shape on the top through the circular flushing water channel on the top of the excrement and urine collection bucket, which is more beneficial to the self-cleaning of the excrement and urine collection bucket.

[0007] As an optimization, a toilet seat with the water-storage and odor-proof toilet body installed on the floor is more convenient to install and maintain; or a squat toilet with the water-storage and odor-proof toilet body embedded in the floor is conducive to increasing the upward extension height of the negative pressure cabin, thereby avoiding the suction of non-gaseous substances by the negative pressure fan to the greatest extent; the cross-connecting pipeline is a downward sloping cross-connecting pipeline with a high negative pressure cabin end and a low vertical bottom discharge pipe end. In this way, after the negative pressure fan is stopped, feces and urine and water can easily descend by their own gravity and are not easy to be retained and residual in the cross-connecting pipeline. The squat toilet is set on the squat platform floor, and steps are preferably provided between the squat platform floor and the ground level, or the squat toilet body can be embedded in the floor.

[0008] As an optimization, the bottom of the negative pressure tank is high on the outside and low on the inside, and is in a downwardly inclined extension with the downwardly inclined horizontal connecting pipe; or the bottom of the negative pressure tank is high on the outside and low on the inside, and is in a downwardly inclined extension with the downwardly inclined horizontal connecting pipe, and the negative pressure tank is provided with a stable support foot. The bottom of the negative pressure tank is high on the outside and low on the inside, and is in a downwardly inclined extension with the downwardly inclined horizontal connecting pipe, which is conducive to the downward flow of feces and urine; the negative pressure tank is high on the outside and low on the inside, and is provided with a foot for stable support to ensure stability. Specifically, the negative pressure tank is high on the outside and low on the inside, and is provided with a flat foot for stable support near the vertical bottom drainage pipe, which ensures stability while saving ground space.

[0009] As an optimization, the check valve arranged on the cross-connecting pipeline is a gravity-induced naturally drooping snap-fit ​​type top-pivoted check valve, which can be closed by wind force and easily opened by downward flow; the top-pivoted check valve and the end port of the cross-connecting pipeline snapped therewith are high on the outside and low on the inside and slanted downward to ensure automatic closure under gravity; the top-pivoted check valve is smaller than the inner diameter of the vertical bottom discharge pipe, which is convenient for installation and maintenance.

[0010] As an optimization, the end of the fixed sleeve in the downstream section of the cross-connected pipeline is provided with a check valve pipe of the top pivot check valve, the top pivot check valve and the end of the check valve pipe engaged therewith are high outside and low inside and inclined downward, and the check valve pipe and the top pivot check valve are smaller than the inner diameter of the vertical bottom exhaust pipe. The manufacturing is simplified and the disassembly and maintenance are convenient. The fixed sleeve is bonded at the same time as the sleeve is assembled.

[0011] As an optimization, the negative pressure chamber is composed of a lower thick main part and an upper thin auxiliary part extending upward from the top rear part of the lower thick main part and connected to the negative pressure fan. The parallel space saved by the upper thin auxiliary part is convenient for the installation and maintenance of the exhaust pipe and the water inlet pipe; the upper front side and the lower front side of the lower thick main part are respectively connected to the downstream of the siphon water storage bay flushing and drainage pipe and the upstream of the cross-connection pipe; at least the upper thin auxiliary part and the rear end of the top of the water storage and odor-proof toilet body are buckled together with the rear cover box, and the rear cover box is equipped with a suction and discharge switch that controls the negative pressure fan and the electric control valve through the controller. The introduction of the rear cover box is convenient for the installation and protection of the control device. The rear cover box of the squat toilet can be set on the squat platform, which is convenient for disassembly and maintenance.

[0012] As an optimization, the suction and exhaust switch is a manual switch located on the top of the rear cover box, which is easy to operate and has strong reliability; or it is a proximity switch located at the front of the rear cover box, which is activated after sensing proximity and losing the proximity signal, and is contact-free and cross-free; the upper thin auxiliary part is provided with a middle top opening, the lower thin part of the T-type negative pressure fan is inserted into the middle top opening, the upper thick part of the T-type negative pressure fan is buckled on the upper thin auxiliary part, and the T-type negative pressure fan is sealed and fixed to the middle top opening, which is convenient for manufacturing, setting and maintenance, and not easy to leak.

[0013] As an optimization, the negative pressure cabin is provided with a filter net for blocking foreign matter below the air inlet of the negative pressure fan, and the filter net is preferably fixed by an annular groove between the inner convex rings arranged at intervals up and down or between the inner convex heads distributed in an annular manner; the vertical bottom drain pipe is connected to the horizontal main drain pipe through the vertical branch drain pipe, which is suitable for spacious sewers with strong air buffering capacity; or the vertical bottom drain pipe is connected to the horizontal main drain pipe of the upper outdoor exhaust pipe through the vertical branch drain pipe, which is conducive to avoiding the increase of air pressure in the sewer and avoiding reverse pressure relief after stopping the fan. The filter net is preferably a downward convex hemispherical shell filter net or a slanted filter net with a high back and a low front, which is conducive to the passage of the inhaled air flow and is not easy to hang solids on the filter net. Of course, the downward convex hemispherical shell filter net is more conducive to improving the air flow performance. The slanted filter net with a high back and a low front is more conducive to avoiding the suction and hanging of solids.

[0014] It is super water-saving, requiring only 0.5L of water for urination and no more than one liter of water for defecation. The integrated structure is easy to install and produce, with a simple structure and low cost, making it easy to promote. It also has an anti-blocking function. The down-discharge channel is enlarged from upstream to downstream, and there will be no blockage after the down-discharge is smooth. During operation, the negative pressure fan receives a start signal from the controller, and the check valve is closed when it starts to run. Negative pressure is generated in the negative pressure cabin, and the dirt in the toilet is sucked into the negative pressure cabin. The positive pressure airflow generated during the operation of the negative pressure fan is discharged into the sewer pipe through the exhaust pipe and the vertical bottom discharge pipe. At the same time, the check valve has a positive pressure sealing effect. Of course, the positive pressure air can also be discharged to the outside through the sewer pipe and the outdoor exhaust pipe, thereby avoiding the influence of the inhaled positive pressure air on the normal air pressure in the sewer pipe. The negative pressure fan will automatically shut down after running for 5 seconds, and the dirt in the negative pressure cabin will automatically push open the check valve and drain into the sewer pipe to complete the sewage discharge. At the same time, the controller will open the electric control valve to replenish water in the water storage bay and then close it automatically, completing the previous toilet suction and drainage, replenishment and odor isolation, and preparing for the next toilet. When there is a power outage, it can still be flushed with the help of siphon, which means it has dual-purpose, and can be used with or without electricity: when there is a power outage, it can still be flushed with water with the help of the normal siphon water storage bay flushing and drainage pipeline, and only a little more water is needed to drain the dirt. The more preferred control logic of the controller is that when the proximity switch senses a person, it sends a signal to the controller, and the controller opens the electric control valve for 1-2 seconds to flush the toilet wall. After the person uses the toilet and leaves, the controller opens the electric control valve for 5 seconds to clean and flush the dirt on the surface of the toilet. After the electric control valve is closed, the controller turns on the negative pressure fan to complete suction and discharge. After suction and discharge are completed, the electric control valve is opened again to replenish the water storage bay to ensure that the odor-isolating water storage bay normally closes the lower drainage channel and plays a strong odor-isolating role.

[0015] After adopting the above technical scheme, the utility model has the advantages of ultra-water-saving negative pressure suction and discharge water storage and odor-proof toilet, ultra-water-saving suction and discharge, strong odor-proofing in the water storage bay, and also helps to clean the collection surface of the toilet during suction and discharge. The integrated structure of the main body is convenient for manufacturing and installation and is more durable. It can still be flushed and discharged with the help of siphon when encountering a power outage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model of the ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet. Figure 2 It is a structural schematic diagram of a second embodiment of the utility model's ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet. Figure 3 It is a structural schematic diagram of a third embodiment of the utility model's ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet. Figure 4 It is a structural schematic diagram of the fourth embodiment of the utility model's ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet. Figure 5 It is a structural schematic diagram of the fifth embodiment of the utility model's ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet. Figure 6It is a structural schematic diagram of the sixth embodiment of the utility model's ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet. Figure 7 It is a structural schematic diagram of the seventh embodiment of the utility model's ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet. DETAILED DESCRIPTION

[0017] Embodiment 1, as Figure 1 As shown, the utility model shows an ultra-water-saving negative pressure suction and discharge water storage and odor-proof toilet whose water inlet is connected to the front flushing port 11 and the rear flushing port 12 through a flushing channel, and the bottom of the urine and feces collection bucket 10 is an odor-proof water storage bay; the downstream part of the siphon water storage bay flushing and discharge pipeline 2 of the water storage and odor-proof toilet body is connected to the negative pressure cabin extending up and down, and a non-return valve 51 is arranged on the horizontal connecting pipeline 5 between the bottom of the negative pressure cabin and the vertical bottom discharge pipe 6 to prevent air from entering the negative pressure cabin during suction and discharge; the top of the negative pressure cabin is connected to the negative pressure fan 4 set for sucking air from the negative pressure cabin, the exhaust port of the negative pressure fan 4 is connected to the top of the vertical bottom discharge pipe 6 through the exhaust pipeline 46, and an electric control valve 7 for replenishing water to the water storage bay is arranged on the water inlet pipeline 17 connected to the water inlet; the electric control method includes: the electric control mechanism first opens and closes the negative pressure fan 4 for suction and discharge, and then switches the electric control valve 7 to replenish water to the water storage bay. Of course, in actual application: it can be a toilet that is high above the ground, or a squat toilet with the body flat on the squat platform. The rear cover box can be set protruding from the squat platform for easy disassembly and maintenance. The negative pressure fan and the electric control valve are manually or inductively started to control suction and discharge. In this way, when the toilet user gets up after using the toilet, the negative pressure fan is manually or inductively turned on. The negative pressure fan forms a negative pressure in the negative pressure cabin by sucking air and sucking the check valve, and then the feces and urine at the bottom of the collection bucket and the odor-proof water are sucked into the negative pressure cabin for temporary storage through the cross-connecting pipeline. After that, the negative pressure cabin loses negative pressure after the negative pressure fan is turned off. The feces and urine temporarily stored in the negative pressure cabin slide automatically into the vertical bottom discharge pipe by their own gravity with the help of mixed water, and the feces and urine are discharged downward. Then, open the electric control valve to replenish water to the water storage bay, and close the electric control valve after the water replenishment is completed. At this point, the suction and discharge water replenishment process is completed, and the toilet is restored to its initial state ready to receive the next toilet. In this way, except for suction and discharge, there is a water storage bay to isolate odor in any other state, and during suction and discharge, the downstream of the water storage bay is in a negative pressure state, and the dirty air in the downstream waterway will not overflow due to the negative pressure, which can ensure that there will be no odor overflow in any state; the water consumption is limited to replenishing the water in the water storage bay, which can greatly save water; of course, when replenishing the water storage bay, you can also flush and clean the feces and urine collection bucket, and the negative pressure formed by the negative pressure cabin can not only suck away the feces and urine, but also clean the surface of the collection bucket by forced suction. Therefore, it has the advantages of super water saving in suction and discharge, strong odor isolation in the water storage bay, and it is also helpful to clean the collection surface of the toilet during suction and discharge, and it can still be flushed and discharged with the help of siphon when encountering a power outage. Note: The floor number in the figure is 20.

[0018] Specifically, the negative pressure fan 4 and the electric control valve 7 are electrically connected to the controller 8 of the suction and discharge switch. After the suction and discharge switch is triggered, the controller 8 first turns on the negative pressure fan 4. After the negative pressure fan 4 runs for a certain period of time, the feces and urine collected at the bottom of the water storage and odor-proof toilet collection bucket 10 and the stored water are sucked into the negative pressure chamber through the siphon water storage bay flushing and discharge pipeline 2 through the negative pressure, and then the controller 8 first turns off the negative pressure fan 4 and then opens the electric control valve 7 to replenish water to the water storage bay, and then closes the electric control valve 7. The suction and discharge switch is a proximity switch 81 that is activated after sensing proximity and then losing the proximity signal. It can also be a manual switch.

[0019] Specifically, the exhaust pipe 46 is an upper exhaust hose, and the lower section is a ceramic or polymer material lower body hard pipe integrated with the water storage and odor-isolating toilet body, or the whole can be an exhaust hose; the water inlet pipe 17 is a water inlet hose. The water inlet is connected to the front and rear flushing ports 11 and 12 at the front and rear ends of the upper part of the excrement collection bucket through the ring flushing water channel at the top of the excrement collection bucket. More preferably, the water inlet is connected to the front and rear ends of the upper part of the excrement collection bucket and the flushing ports distributed in an annular manner on the top through the ring flushing water channel at the top of the excrement collection bucket.

[0020] Specifically, it is a toilet seat installed on the ground for storing water and isolating odor. The horizontal connecting pipe 5 is a downward sloping horizontal connecting pipe with a high negative pressure tank end and a low vertical bottom discharge pipe end. The bottom of the negative pressure tank is high on the outside and low on the inside, and is a downward sloping bottom that extends downwardly along the downward sloping horizontal connecting pipe 5; the negative pressure tank is high on the outside and low on the inside, and is provided with a footrest for stable support. More specifically, the negative pressure tank is high on the outside and low on the inside, and is provided with a flat footrest 33 for stable support near the vertical bottom discharge pipe.

[0021] Specifically, the check valve 51 provided on the transverse pipeline 5 is a gravity-induced naturally drooping snap-fit ​​type top pivot check valve; the top pivot check valve and the end port of the transverse pipeline snap-fitted therewith are high outside and low inside and slanted downward; the top pivot check valve is smaller than the inner diameter of the vertical bottom discharge pipe 6.

[0022] Specifically, the negative pressure chamber is composed of a lower thick main part 32 and an upper thin auxiliary part 31 extending upward from the top rear part of the lower thick main part 32 and connected to the negative pressure fan 4. The upper front side and the lower front side of the lower thick main part 32 are respectively connected to the downstream of the siphon water storage bay flushing and drainage pipeline 2 and the upstream of the cross-connection pipeline 5; at least the upper thin auxiliary part 31 and the top rear end of the water storage and odor-isolating toilet body are buckled together with the rear cover box 90, and the rear cover box 90 is provided with a suction and discharge switch 81 that controls the negative pressure fan 4 and the electric control valve 7 through the controller 8. The suction and discharge switch 81 is a proximity switch set at the front of the rear cover box 90, which is activated after the proximity signal is lost after the induction is approached, and can also be a manual switch set at the top of the rear cover box; the upper thin auxiliary part 31 is provided with a middle top opening, the lower thin part of the T-type negative pressure fan is inserted into the middle top opening, the upper thick part of the T-type negative pressure fan is buckled on the upper thin auxiliary part, and the T-type negative pressure fan is sealed and fixed with the middle top opening.

[0023] Specifically, the vertical bottom drain pipe 6 is connected to the horizontal main drain pipe 99 connected to the outdoor exhaust pipe 92 through the vertical branch drain pipe 91, or the vertical bottom drain pipe is connected to the horizontal main drain pipe through the vertical branch drain pipe.

[0024] Embodiment 2, as Figure 2 As shown, the difference between the ultra-water-saving negative pressure suction and drainage water storage and odor-proof toilet of the utility model and the above-mentioned embodiment 1 is that: the end of the fixed sleeve in the downstream section of the expanded diameter of the horizontal pipe 5 is provided with the anti-return valve pipe 50 of the top pivot anti-return valve 51, the end of the top pivot anti-return valve 51 and the anti-return valve pipe 50 engaged therewith are high outside and low inside and inclined downward, and the anti-return valve pipe 50 and the top pivot anti-return valve 51 are smaller than the inner diameter of the vertical bottom discharge pipe 6. The fixed sleeve is bonded at the same time as the sleeve is fitted.

[0025] Embodiment three, as Figure 3 As shown, the difference between the ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet of the utility model and the above-mentioned embodiment 2 is that a downward convex hemispherical shell filter 41 for blocking foreign matter is fixedly provided under the air inlet of the negative pressure fan 4 in the negative pressure cabin.

[0026] Embodiment 4, as Figure 4 As shown, the difference between the ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet of the utility model and the above-mentioned embodiment 2 is that a downward convex hemispherical shell filter 41 for blocking foreign matter is fixedly provided under the air inlet of the negative pressure fan 4 in the negative pressure cabin.

[0027] Embodiment 5, as Figure 5 As shown, the difference between the ultra-water-saving negative pressure suction and discharge water storage and odor-isolating toilet of the utility model and the above-mentioned embodiment 2 is that the suction and discharge switch 81 is a manual switch arranged on the top of the rear cover box 90.

[0028] Embodiment six, as Figure 6 As shown, the difference between the ultra-water-saving negative pressure suction and drainage water storage and odor-proof toilet of the utility model and the above-mentioned embodiment 2 is that the water storage and odor-proof toilet body is embedded in the squatting platform floor 20. The bottom of the negative pressure cabin is only high on the outside and low on the inside, and is extended downwardly with the downwardly inclined horizontal connecting pipe 2.

[0029] Embodiment seven, as Figure 7 As shown, the main difference between the ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet of the utility model and the above-mentioned embodiment 6 is that a step 21 is provided between the squatting platform floor 20 and the ground floor 20.

[0030] In short, the utility model has the advantages of super water-saving negative pressure suction and drainage, water storage and odor-proof toilet, super water-saving suction and drainage, strong odor-proofing in the water storage bay, and it also helps to clean the collection surface of the toilet during suction and drainage. The integrated structure of the main body is convenient for manufacturing and installation and is more durable. It can still be flushed and discharged with the help of siphon when encountering a power outage.

Claims

1. An ultra-water-saving negative pressure suction and drainage water storage and odor-proof toilet, the water inlet is connected to the flushing outlet through a flushing channel, and the bottom of the feces and urine collection bucket is an odor-proof water storage bay; it is characterized by The downstream part of the siphon water storage bay flushing and discharge pipeline of the water storage and odor-proof toilet body is connected to the negative pressure tank extending up and down, and a check valve is arranged on the horizontal pipeline between the bottom of the negative pressure tank and the vertical bottom discharge pipe to prevent air from entering the negative pressure tank during suction and discharge; the top of the negative pressure tank is connected to a negative pressure fan for sucking air from the negative pressure tank, and the exhaust port of the negative pressure fan is connected to the top of the vertical bottom discharge pipe through an exhaust pipeline, and an electric control valve for replenishing water in the water storage bay is arranged on the water inlet pipeline connected to the water inlet; the electric control method includes: the electric control mechanism first opens and closes the suction and discharge of the negative pressure fan, and then switches the electric control valve to replenish water to the water storage bay.

2. According to claim 1, the ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet is characterized in that The negative pressure fan and the electric control valve are electrically connected to the controller of the suction and discharge switch. After the suction and discharge switch is triggered, the controller first turns on the negative pressure fan. After the negative pressure fan runs for a certain period of time, the feces and urine collected at the bottom of the water storage and odor-proof toilet collection bucket and the stored water are sucked into the negative pressure cabin through the siphon water storage bay flushing and discharge pipeline through the negative pressure. Then, the controller first turns off the negative pressure fan and then turns on the electric control valve to replenish water to the water storage bay, and then turns on the electric control valve.

3. The ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet according to claim 1 is characterized in that The exhaust pipe is an exhaust hose or the upper section is an upper exhaust hose and the lower section is a lower section hard tube made of ceramic or polymer material which is integrated with the water storage and odor-isolating toilet body; the water inlet pipe is a water inlet hose; the water inlet is connected to the flushing ports at the front and rear ends of the upper part of the feces and urine collection bucket through the circular flushing water channel on the top of the feces and urine collection bucket.

4. The ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet according to claim 1 is characterized in that The invention relates to a toilet seat with a water-retaining and odor-isolating toilet body arranged on the ground, or a squatting toilet with a water-retaining and odor-isolating toilet body embedded in the ground; the horizontal connecting pipe is a downwardly inclined horizontal connecting pipe with a high negative pressure cabin end and a low vertical bottom discharge pipe end.

5. The ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet according to claim 4 is characterized in that The bottom of the negative pressure cabin is higher on the outside and lower on the inside, and is in a downwardly inclined extension with the downwardly inclined cross-connecting pipeline; or the bottom of the negative pressure cabin is higher on the outside and lower on the inside, and is in a downwardly inclined extension with the downwardly inclined cross-connecting pipeline, and the negative pressure cabin is provided with supporting feet for stability.

6. The ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet according to claim 1 is characterized in that The check valve arranged on the transverse pipeline is a gravity-induced naturally drooping snap-fit ​​type top pivot check valve. The top pivot check valve and the end port of the transverse pipeline snap-fitted therewith are high outside and low inside and slanted downward. The top pivot check valve is smaller than the inner diameter of the vertical bottom discharge pipe.

7. The ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet according to claim 6 is characterized in that A check valve tube with a top pivotal check valve is arranged at the end of the fixed sleeve in the downstream section of the expanded diameter of the horizontal pipeline. The top pivotal check valve and the end of the check valve tube engaged therewith are high on the outside and low on the inside and inclined downward. The check valve tube and the top pivotal check valve are smaller than the inner diameter of the vertical bottom discharge pipe.

8. The ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet according to claim 1 is characterized in that The negative pressure chamber is composed of a lower thick main part and an upper fine auxiliary part extending upward from the top rear part of the lower thick main part and connected to a negative pressure fan. The upper front side and the lower front side of the lower thick main part are respectively connected forward to the downstream of the siphon water storage bay flushing and discharge pipeline and the upstream of the cross-connecting pipeline; at least the upper fine auxiliary part and the top rear end of the water storage and odor-isolating toilet body are jointly fastened with a rear cover box, and the rear cover box is provided with a suction and discharge switch of the negative pressure fan and the electric control valve which is electrically controlled through a controller.

9. The ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet according to claim 8, characterized in that The suction and exhaust switch is a manual switch arranged on the top of the rear cover box or a proximity switch arranged on the front of the rear cover box which is activated after sensing proximity and then losing the proximity signal; the upper thin auxiliary part is provided with a middle top opening, the lower thin part of the T-type negative pressure fan is inserted into the middle top opening, the upper thick part of the T-type negative pressure fan is buckled on the upper thin auxiliary part, and the T-type negative pressure fan is sealed and fixed to the middle top opening.

10. The ultra-water-saving negative pressure suction and drainage water storage and odor-isolating toilet according to claim 1, characterized in that The negative pressure cabin is provided with a filter net for blocking foreign matter below the air inlet of the negative pressure fan; the vertical bottom drain pipe is connected to the horizontal main drain pipe through the vertical branch drain pipe, or the vertical bottom drain pipe is connected to the horizontal main drain pipe connected to the outdoor exhaust pipe through the vertical branch drain pipe.

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