Intelligent toilet with multi-stage telescopic water jet nozzle and control method

Abstract

The application discloses a kind of intelligent closestool with multistage telescopic water nozzle and control method, belong to intelligent closestool technical field, including closestool, closestool seat ring and water and electricity control system, closestool seat ring is opened with installation cavity in front end, and spray washing component is equipped in installation cavity, and spray washing component includes fixed plate, fixed plate is equipped with support frame, motor is installed on support frame, motor is connected with transmission shaft, connecting block is fixedly installed on transmission shaft, connecting block is installed with telescopic spray rod, telescopic spray rod terminal is provided with water nozzle, water nozzle is embedded into telescopic spray rod, and connecting block bottom is fixedly connected with rotary baffle.The application uses the above-mentioned one with multistage telescopic water nozzle and control method of intelligent closestool, can avoid spray washing component exposed to stain sewage and cause pollution, prevent bacteria breeding, guarantee user health, pre-discharge cold water before spray washing, improve the comfort of user use, fixed plate is connected by bolt on closestool seat ring, easy to disassemble, convenient replacement and maintenance.

Description

Technical Field

[0001] This invention relates to the field of smart toilet technology, and in particular to a smart toilet with a multi-stage telescopic spray nozzle and a control method thereof. Background Technology

[0002] With the popularization of smart home technology, smart toilets have been widely used in various scenarios such as homes and hotels due to their advantages such as convenient cleaning, comfort, and hygiene. Among them, the spray washing mechanism is the core functional component of the smart toilet, and its structural design directly affects the spray washing effect, user experience, and equipment stability.

[0003] In existing technologies, the spray washing unit is often located behind the toilet seat, which can easily cause gynecological diseases due to contamination of the private parts for female users. Furthermore, the spray nozzle is installed on the primary or secondary spray bar, allowing only for genital washing and not for posterior washing. Moreover, existing spray washing units are mostly fixed to the toilet seat and protected by a cover plate. This cover plate requires a reset mechanism after the spray washing unit is retrieved, resulting in a complex structure that is inconvenient for repair and replacement. Summary of the Invention

[0004] The purpose of this invention is to provide a smart toilet with a multi-stage telescopic spray nozzle and a control method. The spray washing component is located inside the mounting cavity, which is in front of the toilet seat to avoid affecting the health of female users. The rotating baffle and the spray nozzle embedded in the multi-stage telescopic spray rod can prevent the spray washing component from being exposed and contaminated by sewage, thus preventing bacterial growth and ensuring the health of users. It also allows water to spray from bottom to top for precise posterior washing. Cold water is pre-drained before spraying to improve user comfort. The fixing plate is connected to the toilet seat with bolts for easy disassembly, replacement and maintenance.

[0005] To achieve the above objectives, the present invention provides an intelligent toilet with a multi-stage telescopic spray nozzle, comprising a toilet, a toilet seat, and a water and electricity control system. The toilet seat has an installation cavity at its front end, within which a spray assembly is installed. The spray assembly includes a fixing plate, a support frame on the fixing plate, a motor mounted on the support frame, the motor connected to a drive shaft, a connecting block fixedly mounted on the drive shaft, a telescopic spray bar mounted on the connecting block, a spray nozzle at the end of the telescopic spray bar, the spray nozzle being embedded within the telescopic spray bar, and a limit plate fixedly connected to the bottom of the connecting block to a rotating baffle.

[0006] Preferably, a return spring is installed inside the telescopic spray bar, the telescopic spray bar is fixedly connected to the drive shaft, a through hole is provided in the shaft of the drive shaft, the through hole communicates with the telescopic spray bar, the drive shaft is connected to the hose, and a temperature sensor is installed on the hose.

[0007] Preferably, the hose is connected to the water tank, a flow rate sensor is installed at the connection between the hose and the water tank, a heating element and a water pump are installed inside the water tank, and a pressure regulating valve is installed on the outlet pipe of the water pump.

[0008] Preferably, the fixing plate is fixedly installed on the toilet seat, and the motor is fixedly installed on the support frame by bolts. The motor and the motor encoder are integrated.

[0009] Preferably, the hydropower control system includes a signal acquisition module, a data processing module, and a data transmission module; The signal acquisition module is used to acquire data from the temperature sensor, motor encoder, and flow rate sensor. The data processing module is used to process the data acquired by the signal acquisition module and output control signals; The data transmission module is used to transmit the control signals output by the data processing module to the corresponding structure.

[0010] This invention provides a control method for a smart toilet with a multi-stage telescopic spray nozzle, comprising the following steps: S1, Trigger the spray washing command; S2. After receiving the spraying command, the data processing module controls the motor to start and drive the rotating baffle to rotate through the PID control algorithm, so that the limit plate of the rotating baffle is separated from the fixed plate. The water pump is started to discharge the pre-stored cold water in the pipe from the spray nozzle. The temperature sensor and flow rate sensor collect the water temperature and flow rate in the hose in real time to determine whether the cold water has been completely discharged. S3. After the cold water is discharged, the data processing module outputs a control signal through the PID control algorithm to control the motor to drive the rotating baffle to continue rotating. After the rotating baffle is fully opened, the motor stops rotating and locks the angle. The data processing module controls the pressure regulating valve and the water pump to control the hot water in the water tank to flow out at a pressure greater than the spring force of the return spring, so that the multi-stage telescopic spray bar extends and hot water is sprayed out from the spray nozzle for posterior washing. S4. During the posterior wash, the data processing module uses a PID control algorithm to calculate the number of motor pulses required for the spray angle, controls the motor to drive the telescopic spray bar and rotating baffle to rotate to the set spray angle and rotate back and forth according to the set angle difference. The telescopic spray bar extends to the preset clear length, and warm water is sprayed from the nozzle for the posterior wash. S5. After the posterior wash is complete, the water pump is turned off, the telescopic spray bar is fully retracted under the action of the return spring, and the motor drives the telescopic spray bar and the rotating baffle to rotate to the initial angle.

[0011] Preferably, the condition for determining whether cold water has been completely discharged is based on water temperature and flow rate. Cold water is completely discharged when the following formula is satisfied: ; in, For the allowable deviation of water temperature, The real-time water flow temperature is collected by a temperature sensor. The preset spray water temperature, For the allowable deviation of flow rate, The real-time water flow velocity is collected by the flow velocity sensor. This is the preset spray flow rate.

[0012] Preferably, the PID control algorithm uses a positional PID formula, and the specific calculation formula is shown below: ; in, This represents the number of pulses in the motor. This is the proportionality coefficient; For the first Error value at the time of sampling For the first Error value at the time of sampling The integral coefficient is... It is the product of the accumulated error and the sampling period. These are the differential coefficients. The sampling period.

[0013] Therefore, the present invention adopts the above-mentioned intelligent toilet with multi-stage telescopic spray nozzles and control method. The spray washing component is located in the installation cavity. The installation cavity is located in front of the toilet seat to avoid affecting the health of female users. The rotating baffle and the spray nozzles are embedded in the multi-stage telescopic spray rods to prevent the spray washing component from being exposed and contaminated by sewage, thus preventing bacterial growth and ensuring the health of users. It also allows water to spray from bottom to top for precise posterior washing. Cold water is pre-drained before spraying to improve user comfort. The fixing plate is connected to the toilet seat with bolts for easy disassembly, replacement and maintenance.

[0014] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an intelligent toilet with a multi-stage telescopic spray nozzle according to the present invention; Figure 2 This is a three-dimensional structural diagram of a smart toilet seat ring with a multi-stage telescopic spray nozzle according to the present invention, viewed from below. Figure 3 This is a three-dimensional structural diagram of an intelligent toilet spray washing component with multi-stage telescopic spray nozzles according to the present invention. Figure 4 This is a schematic diagram of the structure of a smart toilet spray washing component with multi-stage telescopic nozzles of the present invention when it is not in operation. Figure 5This is a schematic diagram of the pre-drainage cold water structure of an intelligent toilet spray washing component with multi-stage telescopic spray nozzles according to the present invention. Figure 6 This is a schematic diagram of the first angle of a smart toilet spray washing component with multi-stage telescopic nozzles according to the present invention during spray washing. Figure 7 This is a schematic diagram of the second angle of a smart toilet spraying assembly with multi-stage telescopic nozzles according to the present invention.

[0016] Figure Labels 1. Toilet seat; 2. Water and electricity control system; 4. Spray washing assembly; 41. Fixing plate; 42. Support frame; 43. Motor; 44. Motor encoder; 45. Drive shaft; 46. Connecting block; 47. Telescopic spray bar; 48. Rotating baffle; 49. Spray nozzle; 5. Toilet. Detailed Implementation

[0017] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] Example 1 like Figures 1 to 7As shown, this invention provides a smart toilet with a multi-stage telescopic spray nozzle, including a toilet 5, a toilet seat 1, and a water and electricity control system 2. The toilet seat 1 has an installation cavity at its front end, within which a spray-washing component 4 is installed. The toilet 5 serves as the main body of the smart toilet, providing stable installation support for the toilet seat 1 and the water and electricity control system 2. The toilet seat 1 acts as the mounting carrier for the spray-washing component 4, providing stable installation support. The installation cavity provides protection and installation space for the spray-washing component 4, preventing it from being exposed and reducing external contamination. The spray-washing component 4 is installed at the front end of the toilet seat 1, preventing contamination of the female user's private parts. To accommodate the installation and use of the spray-washing component 4, the toilet 5 may have a corresponding groove, or the height of the toilet seat 1 may be increased for adaptability.

[0020] The spray washing assembly 4 includes a fixing plate 41, which is bolted to the toilet seat 1. The fixing plate 41 is used to fix and support the entire spray washing assembly 4. The bolt fixing facilitates disassembly, maintenance, and replacement. The limiting plate prevents odors and sewage from the toilet 5 from entering the installation cavity. A support frame 42 is provided on the fixing plate 41, and a motor 43 is mounted on the support frame 42. The motor 43 is bolted to the support frame 42, providing a stable mounting base for the motor 43 and improving structural stability. The support frame 42 can also be directly fixed to the base of the toilet seat 1. The base of the toilet seat 1 has corresponding openings that match the rotating baffle 48, facilitating the rotation of the rotating baffle 48 to isolate odors and sewage and prevent interference with the extension and retraction of the multi-stage telescopic spray bar 47. The motor 43 is a stepper motor. The stepper motor 43 has precise positioning and controllable speed, making it easy to control the rotation angle and adapt to the needs of different users. The motor 43 is integrated with the motor encoder 44. The motor encoder 44 is used to collect the rotation angle and speed data of the motor 43 and feed them back to the water and electricity control system 2.

[0021] Motor 43 is connected to drive shaft 45, and a connecting block 46 is fixedly installed on drive shaft 45. A multi-stage telescopic spray bar 47 is installed on connecting block 46. The bottom of connecting block 46 is fixedly connected to rotating baffle 48. Motor 43 provides power to the spray assembly 4, driving drive shaft 45 to rotate. The rotation of drive shaft 45 drives connecting block 46 to rotate, which in turn drives telescopic spray bar 47 and rotating baffle 48 to rotate. The multi-stage telescopic spray bar 47 allows water to spray from bottom to top for precise posterior washing. Rotating at different angles can prevent spraying onto the buttocks during pre-draining of cold water, and the extension length can be adjusted to meet the spraying needs of different users. A limit plate is provided on the outer side of rotating baffle 48, providing protection when telescopic spray bar 47 is in its original position, preventing sewage from contaminating telescopic spray bar 47 and affecting the user's health.

[0022] A spray nozzle 49 is installed at the end of the telescopic spray bar 47, and the spray nozzle 49 is embedded in the telescopic spray bar 47. The telescopic spray bar 47 is used to transmit the cleaning water flow, and the spray nozzle 49 is used to spray the cleaning water flow to complete the posterior washing. An electric actuator is installed in the connecting block 46, which is connected to the telescopic spray bar 47. The electric actuator can drive the telescopic spray bar 47 to extend and retract, realizing the pre-drainage of cold water and posterior washing, and can adapt to the needs of different users. A return spring is installed inside the telescopic spray bar 47. The return spring can drive the telescopic spray bar to return to its original position after the water pump is turned off, preventing the spray nozzle 49 from being contaminated on the outside. The telescopic spray bar 47 is fixedly connected to the drive shaft 45. A through hole is provided in the shaft of the drive shaft 45, which communicates with the telescopic spray bar 47. The drive shaft 45 is connected to a hose, and a temperature sensor is installed on the hose. The hose is connected to a water tank, and a flow rate sensor is installed at the connection between the hose and the water tank. A heating element and a water pump are installed in the water tank, and a pressure regulating valve is installed on the outlet pipe of the water pump. The installation and connection methods of the telescopic spray boom 47, drive shaft 45, hose, water pump, heating element, temperature sensor, and flow rate sensor all utilize existing technologies. The heating element heats the water in the tank, the hose facilitates water flow, and the water pump delivers warm water from the tank to the telescopic spray boom 47 via the hose and through-holes in the drive shaft 45. The temperature sensor collects the temperature of the water flowing into the telescopic spray boom 47 in real time, and the flow rate sensor detects the water flow speed. During the pre-drainage stage, the water and electricity control system 2 controls the water pump to reduce the water flow speed to prevent excessively fast spraying onto the buttocks. The pressure regulating valve adjusts the water pressure at the nozzle 49, allowing for adjustment based on user requirements.

[0023] The hydropower control system includes a signal acquisition module, a data processing module, and a data transmission module; The signal acquisition module is used to acquire data from the temperature sensor, motor encoder 44, and flow rate sensor; The data processing module is used to process the data acquired by the signal acquisition module and output control signals; The data transmission module is used to transmit the control signals output by the data processing module to the corresponding structure.

[0024] This invention provides a control method for a smart toilet with a multi-stage telescopic spray nozzle, comprising the following steps: S1, Trigger the spray washing command; The spraying command can be triggered by a button box, voice control, and remote control, all of which adopt existing technology structures.

[0025] S2. After receiving the spraying command, the data processing module controls the motor to start and drive the rotating baffle to rotate through the PID control algorithm, so that the limit plate of the rotating baffle is separated from the fixed plate. The water pump is started to discharge the pre-stored cold water in the pipe from the spray nozzle. The temperature sensor and flow rate sensor collect the water temperature and flow rate in the hose in real time to determine whether the cold water has been completely discharged.

[0026] The conditions for determining whether cold water has been completely discharged are based on water temperature and flow rate. Cold water is completely discharged when the following formula is satisfied: ; in, For the allowable deviation of water temperature, The real-time water flow temperature is collected by a temperature sensor. The preset spray water temperature, For the allowable deviation of flow rate, The real-time water flow velocity is collected by the flow velocity sensor. This is the preset spray flow rate.

[0027] S3. After the cold water is discharged, the data processing module outputs a control signal through the PID control algorithm to control the motor to drive the rotating baffle to continue rotating. After the rotating baffle is fully opened, the motor stops rotating and locks the angle. The data processing module controls the pressure regulating valve and the water pump to control the hot water in the water tank to flow out at a pressure greater than the spring force of the reset spring, so that the multi-stage telescopic spray bar extends and hot water is sprayed out from the spray nozzle for posterior washing.

[0028] S4. During the posterior wash, the data processing module uses a PID control algorithm to calculate the number of motor pulses required for the spray angle, and controls the motor 43 to drive the telescopic spray bar 47 and the rotating baffle 48 to rotate to the set spray angle and rotate back and forth according to the set angle difference. The telescopic spray bar 47 extends to the preset clear length, and warm water is sprayed out from the nozzle 49 for the posterior wash. The data processing module uses a PID control algorithm to calculate the number of motor pulses required for pre-draining cold water, and controls the motor 43 to drive the telescopic spray bar 47 and the rotating baffle 48 to rotate to the set pre-draining angle. The telescopic spray bar 47 extends the pre-draining length, and cold water is discharged from the spray nozzle 49. The PID control algorithm uses the positional PID formula, and the specific calculation formula is shown below: ; in, This represents the number of pulses in the motor. This is the proportionality coefficient; For the first Error value at the time of sampling For the first Error value at the time of sampling The integral coefficient is... It is the product of the accumulated error and the sampling period. These are the differential coefficients. The sampling period.

[0029] S5. After the posterior wash is completed, the water pump is turned off, and the telescopic spray bar 47 is fully retracted under the action of the return spring. The motor 43 drives the telescopic spray bar 47 and the rotating baffle 48 to rotate to the initial angle.

[0030] Therefore, the present invention adopts the above-mentioned intelligent toilet with multi-stage telescopic spray nozzles and control method. The spray washing component is located in the installation cavity. The installation cavity is located in front of the toilet seat to avoid affecting the health of female users. The rotating baffle and the spray nozzles are embedded in the multi-stage telescopic spray rods to prevent the spray washing component from being exposed and contaminated by sewage, thus preventing bacterial growth and ensuring the health of users. It also allows water to spray from bottom to top for precise posterior washing. Cold water is pre-drained before spraying to improve user comfort. The fixing plate is connected to the toilet seat with bolts for easy disassembly, replacement and maintenance.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A smart toilet with a multi-stage telescopic spray nozzle, characterized in that: The device includes a toilet, a toilet seat, and a water and electricity control system. The toilet seat has an installation cavity at its front end, and a spray washing assembly is installed inside the installation cavity. The spray washing assembly includes a fixing plate, a support frame on the fixing plate, a motor mounted on the support frame, the motor connected to a drive shaft, a connecting block fixedly mounted on the drive shaft, a multi-stage telescopic spray bar mounted on the connecting block, a water nozzle at the end of the telescopic spray bar, the water nozzle being embedded in the telescopic spray bar, and the bottom of the connecting block being fixedly connected to a rotating baffle. A limit plate is provided on the outer side of the rotating baffle.

2. The smart toilet with a multi-stage telescopic spray nozzle according to claim 1, characterized in that: The telescopic spray bar has a return spring inside. The telescopic spray bar is fixedly connected to the drive shaft. The drive shaft has a through hole in its core, which communicates with the telescopic spray bar. The drive shaft is also connected to the hose, which has a temperature sensor installed on it.

3. A smart toilet with a multi-stage telescopic spray nozzle according to claim 2, characterized in that: The hose is connected to the water tank, and a flow rate sensor is installed at the connection point. The water tank contains a heating element and a water pump, and a pressure regulating valve is installed on the outlet pipe of the water pump.

4. A smart toilet with a multi-stage telescopic spray nozzle according to claim 3, characterized in that: The mounting plate is fixedly installed on the toilet seat, and the motor is fixedly installed on the support frame with bolts. The motor and motor encoder are integrated.

5. A smart toilet with a multi-stage telescopic spray nozzle according to claim 4, characterized in that: The hydropower control system includes a signal acquisition module, a data processing module, and a data transmission module; The signal acquisition module is used to acquire data from the temperature sensor, motor encoder, and flow rate sensor. The data processing module is used to process the data acquired by the signal acquisition module and output control signals; The data transmission module is used to transmit the control signals output by the data processing module to the corresponding structure.

6. A control method for a smart toilet with a multi-stage telescopic spray nozzle as described in any one of claims 1-5, characterized in that: Includes the following steps: S1, Trigger the spray washing command; S2. After receiving the spraying command, the data processing module controls the motor to start and drive the rotating baffle to rotate through the PID control algorithm, so that the limit plate of the rotating baffle is separated from the fixed plate. The water pump is started to discharge the pre-stored cold water in the pipe from the spray nozzle. The temperature sensor and flow rate sensor collect the water temperature and flow rate in the hose in real time to determine whether the cold water has been completely discharged. S3. After the cold water is discharged, the data processing module outputs a control signal through the PID control algorithm to control the motor to drive the rotating baffle to continue rotating. After the rotating baffle is fully opened, the motor stops rotating and locks the angle. The data processing module controls the pressure regulating valve and the water pump to control the hot water in the water tank to flow out at a pressure greater than the spring force of the return spring, so that the multi-stage telescopic spray bar extends and hot water is sprayed out from the spray nozzle for posterior washing. S4. During the posterior wash, the data processing module uses a PID control algorithm to calculate the number of motor pulses required for the spray angle, controls the motor to drive the telescopic spray bar and rotating baffle to rotate to the set spray angle and rotate back and forth according to the set angle difference. The telescopic spray bar extends to the preset clear length, and warm water is sprayed from the nozzle for the posterior wash. S5. After the posterior wash is complete, the water pump is turned off, the telescopic spray bar is fully retracted under the action of the return spring, and the motor drives the telescopic spray bar and the rotating baffle to rotate to the initial angle.

7. The control method for a smart toilet with a multi-stage telescopic spray nozzle according to claim 6, characterized in that: The conditions for determining whether cold water has been completely discharged are based on water temperature and flow rate. Cold water is completely discharged when the following formula is satisfied: ； in, For the allowable deviation of water temperature, The real-time water flow temperature is collected by a temperature sensor. The preset spray water temperature, For the allowable deviation of flow rate, The real-time water flow velocity is collected by the flow velocity sensor. This is the preset spray flow rate.

8. The control method for a smart toilet with a multi-stage telescopic spray nozzle according to claim 7, characterized in that: The PID control algorithm uses the positional PID formula, and the specific calculation formula is shown below: ; in, This represents the number of pulses in the motor. This is the proportionality coefficient; For the first Error value at the time of sampling For the first Error value at the time of sampling The integral coefficient is... It is the product of the accumulated error and the sampling period. These are the differential coefficients. The sampling period.

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