A suction and drying device, system and method for a urination and defecation care system.

Abstract

This invention relates to the field of medical and nursing device technology, and discloses a suction and drying device, system, and method for a urination and defecation care system. The system includes a connecting line and internally houses a sewage pipe and a warm air pipe. The main unit is connected to the urinal via the connecting line to form a circulation loop. It includes a sewage tank, a filter module, a brushless fan, a three-way valve, and an auxiliary heating module, sequentially connected between the sewage pipe and the warm air pipe. The three-way valve is also connected to the fan via a pipe, working in conjunction with the auxiliary heating module to preheat the warm air pipe before drying. The brushless fan creates a slight negative pressure zone within the urinal, drawing air into the main unit for deodorization, overcoming the problem of odor escaping from the urinal in traditional urination and defecation care systems. Simultaneously, a portion of the exhaust air from the brushless fan participates in the return air circulation, preheating the warm air pipe and solving the problem of cold air escaping during the initial drying stage in traditional urination and defecation care systems.

Description

Technical Field

[0001] This invention relates to the field of medical and nursing device technology, and in particular to a suction and drying device, system and method for a urination and defecation care system. Background Technology

[0002] With the continuous increase in the number of elderly people, including those with disabilities, dementia, and cognitive impairment, toileting care has become an urgent issue. Traditional methods like diapers or bedpans not only fail to protect patient privacy and reduce the workload of caregivers, but also often result in delayed toileting, negatively impacting skin and psychological well-being and increasing the risk of pressure sores. The Bedridden Toileting Care System is a wearable, fully automated, intelligent toileting care robot designed to care for elderly individuals who are incontinent or unable to manage their own bodily functions. This system effectively addresses these issues and will play a crucial role in nursing care. The system mainly consists of a main unit and a bedpan, connected by a cable. When the patient defecates in the bedpan, the system automatically senses the movement, suctions the waste into the waste tank of the main unit, and simultaneously washes and dries the patient's excrement area.

[0003] Current bowel and bladder care systems, while capable of sensing, identifying, and suctioning excrement, fail to effectively reduce odor escape during the drying process after defecation and washing, thus creating a negative experience for patients. Furthermore, at the initial stage of the drying process, cold air from the tubing blows onto the patient's skin, and this temperature change may cause discomfort or even illness. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a suction and drying device, system, and method for a toilet care system. The brushless fan creates a slight negative pressure zone inside the toilet bowl through suction, drawing the air into the main unit for deodorization, thus overcoming the problem of odor escaping from the toilet bowl in traditional toilet care systems. At the same time, by incorporating a portion of the exhaust air from the brushless fan into the return air circulation, it preheats the warm air duct, solving the problem of cold air escaping during the initial drying stage in traditional toilet care systems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] In a first aspect, a suction and drying device for a bowel and bladder care system includes:

[0007] The connecting line contains sewage pipes and heating pipes;

[0008] The main unit, which is used to connect to the toilet bowl via a connecting cable to form a circulation loop, includes a sewage tank, a filter module, a brushless fan, a three-way valve, and an auxiliary heating module connected sequentially between the sewage pipe and the warm air pipe. The brushless fan operates to create a slight negative pressure zone inside the toilet bowl, drawing odors to the main unit for deodorization. At the same time, the brushless fan also outputs slightly warm air to preheat the warm air pipe. The three-way valve is also connected to a fan via a pipe, which, together with the auxiliary heating module, performs drying work on the basis of preheating the warm air pipe.

[0009] As a further implementation, the sewage tank is equipped with a suction pipe, which is connected to a sewage pipe. A dehumidification box is provided between the sewage tank and the filter module, with a drain outlet on the dehumidification box. The brushless fan is equipped with an exhaust outlet, which is connected to a three-way valve through a pipe. The inner diameter of the exhaust outlet is larger than the inner diameter of the pipe between the brushless fan and the three-way valve.

[0010] As a further implementation, the connection line is also equipped with a signal line and a water purification pipe for connecting the main unit and the toilet; one end of the warm air pipe is connected to the auxiliary heating module, and the other end is used to connect to the warm air vent of the toilet; one end of the sewage pipe is connected to the sewage tank, and the other end is used to connect to the return air vent of the toilet.

[0011] As a further implementation, the three-way valve includes a valve body, in which a rotary valve core is rotatably connected.

[0012] As a further implementation, the rotary valve core is V-shaped, with its opening size adapted to the pipe diameter, and the position of the rotary valve core is determined according to the air output of the fan and the air output of the brushless fan.

[0013] Secondly, a suction and drying system for a urination and defecation care system includes a suction and drying device for a urination and defecation care system as described above, and a commode, wherein the commode is provided with a connecting line commode plug for connecting to a main unit via a connecting line.

[0014] As a further implementation, the toilet is equipped with a defecation detection sensor at the bottom, and a warm air vent and a return air vent on the toilet. The warm air vent and the return air vent are connected to the warm air pipe on the connecting line through a control valve.

[0015] As a further implementation, the toilet is equipped with a sewage outlet, and the sewage tank is connected to the sewage outlet via a sewage pipe on a connecting line.

[0016] As a further implementation, the host is equipped with a controller, which is connected to the control valve and the defecation detection sensor via signal lines.

[0017] Thirdly, a suction and drying method for a bowel and bladder care system, employing any of the above-described suction and drying systems for bowel and bladder care, includes the following steps:

[0018] When defecation occurs, the defecation detection sensor detects the defecation, the control valve opens the return air vent, the brushless fan starts and draws the air into the filter module in the main unit for deodorization, and part of the air from the brushless fan reaches the warm air pipe of the connecting line through the pipeline and the three-way valve to preheat the warm air pipe.

[0019] After defecation, the system washes the defecation area with water while the brushless fan continues to run, sucking the excrement into the sewage tank.

[0020] During drying, the control valve opens the warm air vent, and the fan and brushless fan start. The fan power is greater than the brushless fan power, so as to drive the rotary valve core to rotate until the pipe with the fan circulates. Based on the preheating of the warm air pipe, the air from the fan enters the toilet bowl through the auxiliary heating module, blowing hot air to dry the defecation area.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The brushless fan of this invention creates a micro-negative pressure zone inside the toilet bowl by suction, drawing the air into the main unit for deodorization, thus overcoming the problem of odor escaping from the toilet bowl in traditional toilet care systems; at the same time, by having a portion of the exhaust air from the brushless fan participate in the return air circulation, it preheats the warm air duct, solving the problem of cold air escaping during the initial drying stage in traditional toilet care systems.

[0023] 2. The drying airflow generated by the fan of the present invention enters the drying air path flexibly through a novel three-way valve. The rotating valve core automatically switches the circulating airflow channel according to the airflow size of the fan and the brushless fan. The three-way valve does not require power supply, has a simple structure, and is highly efficient and durable. Attached Figure Description

[0024] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0025] Figure 1 This is a schematic diagram of the suction and drying device used in the urination and defecation care system in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of the suction and drying device for the urination and defecation care system in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the first isometric structure of the host in an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the second isometric structure of the host in an embodiment of the present invention;

[0029] Figure 5This is a schematic diagram of the three-way valve in an embodiment of the present invention;

[0030] Figure 6 This is a cross-sectional structural diagram of the three-way valve in an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the first isometric structure of the toilet in an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the main view of the toilet in an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the second isometric structure of the toilet in an embodiment of the present invention.

[0034] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0035] The components are as follows: 1. Fan, 2. Wastewater tank, 3. Brushless fan, 4. Three-way valve, 5. Filter module, 6. Connecting cable and main unit plug, 7. Dehumidifier box, 8. Main unit, 9. Connecting cable, 10. Toilet, 11. Valve body, 12. Valve cover, 13. Rotary valve core, 101. Connecting cable and toilet plug, 102. Toilet seat, 103. Cleaning port, 104. Warm air vent, 105. Return air vent. Detailed Implementation

[0036] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0037] Example 1

[0038] In a typical embodiment of the present invention, reference is made to Figures 1-9 As shown, a suction and drying device for a toilet care system includes a main unit 8 and a connecting cable 9. The main unit 8 is equipped with a main unit plug 6 for the connecting cable. The connecting cable contains a sewage pipe, a warm air pipe, and a signal cable. One end of the signal cable is used to connect to the main unit plug 6, and the other end is used to connect to the toilet plug 101 on the toilet bowl, thereby connecting the main unit to the toilet bowl. In this embodiment, the suction and drying device for a toilet care system is used in conjunction with the toilet bowl through the warm air pipe and sewage pipe on the connecting cable to achieve odor suction, cleaning, and drying.

[0039] like Figures 2-4As shown, the main unit 8 is used to connect to the toilet 10 via a connecting cable to form a circulation loop. At the end of the connecting cable 9 that connects to the main unit, the main unit 8 includes a sewage tank 2, a dehumidification box 7, and a filter module 5 (i.e., ...) connected sequentially between the sewage pipe and the warm air pipe via pipes. Figure 2 The deodorization module), brushless fan 3 (i.e. Figure 2 4. High-speed brushless fan, three-way valve, and auxiliary heating module.

[0040] The system includes a sewage tank 2 equipped with a suction pipe, which connects to a sewage pipe. A dehumidifier 7 has a drain outlet, and a brushless fan 3 has an exhaust outlet. The dehumidifier 7 and sewage tank are connected via a negative pressure pipe. The brushless fan is connected to a three-way valve 4 via a pipe, and the three-way valve 4 is also connected to a fan 1 via a pipe. When the two-way toilet care system of this embodiment is connected to the toilet via its own connecting line using the suction and drying device, the sewage pipe, suction pipe, sewage tank 2, negative pressure pipe, dehumidifier 7, filter module 5, brushless fan 3, three-way valve 4, auxiliary heating module, warm air pipe, and toilet form a second circulation loop. Figure 2 Channel 2), when the fan participates in the circulation with the above structure through the three-way valve 4, forms the first circulation loop ( Figure 2 Channel 1 in the middle).

[0041] The inner diameter of the exhaust port of the brushless fan 3 is larger than the inner diameter of the pipe between the brushless fan and the three-way valve 4. When the brushless fan is running to draw in odorous gas, most of the gas is discharged through the exhaust port after being deodorized by the filter module 5. A small amount of slightly warm gas participates in the circulation through the second circulation loop and reaches the warm air pipe to preheat the warm air pipe so that the air blown towards the toilet 10 through the warm air pipe is hot air in the subsequent drying stage. This solves the problem that in the initial stage of starting the drying action, the cold air in the pipe will blow onto the patient's skin, and the temperature change may cause the patient discomfort or even cold and illness.

[0042] A water purification pipe is also installed on connecting line 9. Figure 2 The unit includes two water purification pipes (1 and 2), each containing a water tank, a water pump, and corresponding piping for connecting the water purification pipes. The water purification pipes connect to the lower spray nozzle inside the toilet bowl to clean the defecation area. It should be noted that the cleaning method described in this embodiment is existing technology.

[0043] One end of the heating pipe of the connecting line 9 is connected to the auxiliary heating module, and the other end is used to connect to the heating air outlet 104 of the toilet; one end of the sewage pipe is connected to the sewage tank, and the other end is used to connect to the return air outlet 105 of the toilet 10.

[0044] like Figures 5-6As shown, the three-way valve 4 includes a valve body 11, with a valve cover 12 on one side of the valve body 11. A rotary valve core 13 is rotatably connected inside the valve body 11. The rotary valve core 13 is V-shaped, and its opening size is adapted to the pipe diameter. The position of the rotary valve core 13 is determined according to the air output of the fan 1 and the air output of the brushless fan 3. When the power of the fan 1 is greater than that of the brushless fan 3, the first circulation loop is connected; otherwise, the second circulation loop is connected.

[0045] The three-way valve 4 in this embodiment can switch between two circulation loops. The three-way valve 4 does not require power supply. Suction and drying can be flexibly switched through the three-way valve 4. They share a common toilet air supply pipeline, which makes the pipeline structure simpler. Two airflows are supplied at the same time. The stronger airflow can be allowed to pass through, while the other airflow is closed.

[0046] When defecation occurs, the toilet detects the defecation and opens the return air vent 105. Simultaneously, the brushless fan 3 inside the main unit 8 operates at low speed, continuously drawing air from the wastewater outlet of the toilet 10 into the main unit 8 to create a slight negative pressure zone within the toilet 10. This draws the odor into the main unit for deodorization. The odor then passes through the wastewater pipe, wastewater tank, and dehumidification chamber 7 before reaching the filter module 5 for filtration. The filter module is existing technology. After filtration, most of the odor is discharged from the brushless fan's exhaust port, with a small portion of slightly warm air circulating through the second loop. The air then passes through the three-way valve 4 to the warm air duct for preheating. The preheated air then re-enters the toilet 10 through the return air vent. This process preheats the warm air duct while simultaneously drawing in odor from inside the toilet during defecation, preventing odor from escaping and causing an unpleasant experience for the patient. After extraction, the odor is cleaned via a water pipe and a lower spray nozzle.

[0047] After the odor is completely extracted, the brushless fan 3 operates at high speed to draw the excrement into the sewage tank 2. During this process, the dehumidification box 7 and the filter module 5 continue to operate.

[0048] After cleaning, a drying step is required. The fan, in conjunction with the auxiliary heating module, performs the drying work on the basis of preheating the warm air pipe. The auxiliary heating module can be made of electric heating wire.

[0049] Specifically, the warm air vent 104 inside the toilet bowl 10 opens, the fan 1 turns on, the heating wire in the auxiliary heating module heats up, and the fan 1 and brushless fan 3 start running. The strong airflow from the fan 1 travels along the second circulation loop through the three-way valve 4 and the auxiliary heating module into the warm air vent 104 of the toilet bowl. The drying air is then sprayed out from the warm air vent 104 to dry the body washing area. Excess air is discharged through the sewage pipe and the brushless fan 3 at the exhaust port. The air from the brushless fan carries heat, which preheats the pipes, so the air blown on the body is warm in the initial drying stage.

[0050] Example 2

[0051] Secondly, a suction and drying system for a urination and defecation care system includes a suction and drying device for a urination and defecation care system as described above and a commode. The commode 10 has a connecting line commode plug 101 on one side for connecting to the main unit 8 via a connecting line 9. The main body is the commode seat 102.

[0052] The bottom of the sitting part 102 of the commode is equipped with a defecation detection sensor and a lower nozzle. The defecation detection sensor includes a fecal detection sensor and a urination detection sensor, both of which are connected to the detection control board.

[0053] like Figures 7-9 As shown, the toilet seat is equipped with a warm air vent 104, a return air vent 105, and a washout vent 103. The warm air vent 104 and the return air vent 105 are switched by a control valve to connect to the warm air duct on the connecting line. The warm air vent and the washout vent are located on the front side of the toilet seat, while the return air vent 105 and the lower spray nozzle are located on the bottom rear side of the toilet seat and are arranged adjacent to each other. The return air vent 105 inside the toilet seat is connected to the warm air duct via a return air duct, and the lower spray nozzle is connected to the washout vent via a pipe. The bottom of the toilet seat 102 is equipped with a wastewater outlet, and the wastewater tank is connected to the wastewater outlet via a wastewater pipe on the connecting line.

[0054] The main unit is equipped with a controller, which is connected to the control valve and the detection control board via signal lines. The controller can receive signals from the detection control board and control the operation of various components in the main unit as well as the operation of the control valve on the toilet.

[0055] Example 3

[0056] A suction and drying method for a bowel and bladder care system, employing any of the above-described suction and drying systems for bowel and bladder care systems, includes the following steps:

[0057] During defecation, the defecation detection sensor inside the toilet detects whether it is defecation or urination. The control valve inside the toilet opens the return air duct, and the return air inlet 105 connects to the warm air duct. At the same time, the brushless fan starts and runs at low speed, forming a return air path. A portion of the air output from the brushless fan 3 participates in circulation through the second circulation pipe of the three-way valve 4. The return airflow forms a slight negative pressure zone inside the toilet 10, and the odor generated by defecation is continuously drawn into the filter module 5 in the main unit for filtration and deodorization, ensuring that the odor does not escape and diffuse during the defecation process. A portion of the air output from the brushless fan 3 reaches the warm air duct of the connecting line 9 through the pipe and the three-way valve 4 to preheat the warm air duct.

[0058] After defecation, the system washes the defecation area with water, while the brushless fan runs at high speed to suck the excrement in the toilet into the sewage tank.

[0059] During the drying stage, the control valve inside the toilet bowl 10 opens the warm air vent, and the fan 1 and brushless fan 3 start running. The strong airflow from the fan 1 enters the warm air vent 104 of the toilet bowl through the first circulation pipe of the three-way valve 4 and the auxiliary heating module. After preheating in the warm air pipe, the air from the fan 1 enters the toilet bowl 10 through the auxiliary heating module, blowing hot air to dry the defecation area. The drying air is sprayed out from the warm air vent to dry the cleaned area. Excess air is discharged through the suction pipe and at the exhaust port of the fan, completing the suction and drying process.

[0060] This embodiment overcomes the problem of odor leakage from the toilet bowl in traditional urination and defecation care systems by creating a micro-negative pressure zone within the toilet bowl 10; it also solves the problem of cold air escaping during the initial drying stage of traditional urination and defecation care systems by incorporating a portion of the exhaust air from the brushless fan into the return air circulation, thus preheating the ductwork. The drying airflow generated by the fan flexibly enters the drying air path through a novel three-way valve, which requires no power supply, has a simple structure, and is highly efficient and durable.

[0061] In other examples, an electrically controlled three-way valve can also be used to control the airflow channel.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A suction and drying apparatus for a two-sided care system, characterized in that include: The connecting line contains sewage pipes and heating pipes; The main unit is used to connect to the toilet bowl via a connecting cable to form a circulation loop. It includes a sewage tank, a filter module, a brushless fan, a three-way valve, and an auxiliary heating module, which are connected in sequence between the sewage pipe and the warm air pipe. The brushless fan operates to create a slight negative pressure zone in the toilet bowl, drawing the odor to the main unit for deodorization. At the same time, the brushless fan also outputs slightly warm air to preheat the warm air pipe. The three-way valve is also connected to a fan via a pipe, which works with the auxiliary heating module to dry the warm air pipe after it has been preheated. The sewage tank is equipped with a suction pipe, and the sewage tank is connected to the sewage pipe through the suction pipe. A dehumidification box is provided between the sewage tank and the filter module. The dehumidification box is equipped with a drain outlet. The brushless fan is equipped with an exhaust outlet. The brushless fan is connected to a three-way valve through a pipeline. The inner diameter of the exhaust outlet is larger than the inner diameter of the pipeline between the brushless fan and the three-way valve. The three-way valve includes a valve body, in which a rotary valve core is rotatably connected; the rotary valve core is V-shaped, and its opening size is adapted to the pipe diameter. The position of the rotary valve core is determined according to the air output of the fan and the air output of the brushless fan.

2. The suction and drying apparatus for a two-situation nursing system according to claim 1, characterized by The connecting line is also equipped with a signal line and a water purification pipe for connecting the main unit and the toilet; one end of the warm air pipe is connected to the auxiliary heating module, and the other end is used to connect to the warm air vent of the toilet; one end of the sewage pipe is connected to the sewage tank, and the other end is used to connect to the return air vent of the toilet.

3. A suction and drying system for a two-sided care system, characterized in that Includes a suction and drying device for a urination and defecation care system as described in any one of claims 1-2, and a commode, wherein the commode is provided with a commode plug for connecting to the main unit via a connecting cable.

4. The suction and drying system for a urination and defecation care system according to claim 3, characterized in that, The toilet is equipped with a defecation detection sensor at the bottom, and a warm air vent and a return air vent on the toilet. The warm air vent and the return air vent are connected to the warm air pipe on the connecting line through a control valve.

5. The suction and drying system for a urination and defecation care system according to claim 4, characterized in that, The toilet is equipped with a sewage outlet, and the sewage tank is connected to the sewage outlet via a sewage pipe on a connecting line.

6. The suction and drying system for a urination and defecation care system according to claim 5, characterized in that, The host is equipped with a controller, which is connected to the control valve and the defecation detection sensor via signal lines.

7. A suction and drying method for a urination and defecation care system, characterized in that, The suction and drying system for the bowel and bladder care system as described in claim 6 includes the following steps: When defecation occurs, the defecation detection sensor detects the defecation, the control valve opens the return air vent, the brushless fan starts and draws the air into the filter module in the main unit for deodorization, and part of the air from the brushless fan reaches the warm air pipe of the connecting line through the pipeline and the three-way valve to preheat the warm air pipe. After defecation, the system washes the defecation area with water while the brushless fan continues to run, sucking the excrement into the sewage tank. During drying, the control valve opens the warm air vent, and the fan and brushless fan start. The fan power is greater than the brushless fan power, so as to drive the rotary valve core to rotate until the pipe with the fan circulates. Based on the preheating of the warm air pipe, the air from the fan enters the toilet bowl through the auxiliary heating module, blowing hot air to dry the defecation area.

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