Buttock washing method and buttock washing system

Abstract

The invention belongs to the technical field of bathroom accessories, and discloses a hip washing method and a hip washing system.The hip washing method adopts the hip washing system to wash the crissum area of a user and comprises the following steps that S1, data collection is conducted on the crissum area through the hip washing system so that an original data set of the crissum area can be formed through integration; s2, constructing a three-dimensional point cloud model of the crissum area according to the original data set; s3, inferring a crissum curved surface height map by using the three-dimensional point cloud model; and S4, performing action control on the hip washing system according to the crissum curved surface height map, and adjusting washing parameters. According to the hip washing system, the function of washing the crissum area of the user can be achieved through the hip washing system, the personalized washing effect of the user can be achieved by controlling and adjusting the washing action and the washing parameters, and the washing precision can be improved and the washing effect can be guaranteed under the setting of the point cloud model and the height map.

Description

Technical Field

[0001] This invention relates to the field of bathroom technology, and in particular to a method and system for posterior washing. Background Technology

[0002] Technological advancement and hygiene are current trends in bathroom development. Existing smart toilets offer numerous functions, such as posterior washing, seat warming, warm air drying, automatic deodorization, and quiet seating. However, the posterior washing function requires a spray nozzle that propels water forward or backward from its support. While this achieves the desired cleaning effect, the position of the spray nozzle is not visible to the user, and because everyone's sitting position is different, the initial position of the spray nozzle after movement is not suitable for everyone, resulting in low versatility and a poor user experience. Furthermore, the water pattern of posterior washing is relatively fixed, failing to provide personalized washing for different users' perianal areas, easily leading to blind spots or over-washing. Traditional spray nozzles only support preset settings for movement or washing, lacking terrain sensing and adaptive water pattern changes, further contributing to a poor user experience. Therefore, how to adapt the posterior washing to the differences in perianal areas of different users and to maintain personalized washing even when the user's position changes during use, achieving personalized washing and controllable water pattern parameters, is a problem that researchers in this field need to solve. Summary of the Invention

[0003] The purpose of this invention is to provide a posterior washing method and system that can adapt to the differences in the perianal area of ​​different users and can still perform posterior washing when the user moves and changes position during use, so as to achieve personalized rinsing and controllable water parameters.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] The posterior washing method, which uses a posterior washing system to clean the user's perianal area, includes the following steps:

[0006] S1. The perianal area is collected using the posterior washing system to form the original dataset of the perianal area;

[0007] S2. Construct a 3D point cloud model of the perianal region based on the original dataset;

[0008] S3. Use the three-dimensional point cloud model to infer the height map of the perianal surface;

[0009] S4. Based on the anal surface height diagram, control the action of the posterior washing system and adjust the washing parameters.

[0010] Optionally, in step S2, the original dataset is analyzed and inferred, and preprocessed to construct a three-dimensional point cloud model of the perianal region.

[0011] And / or, the preprocessing includes at least one of the following: removing noise from the data, calibrating the data, and normalizing the raw data.

[0012] Optionally, in step S2, the three-dimensional point cloud model consists of multiple three-dimensional coordinate points, each of which represents a position on the surface of the perianal region, in order to simulate the shape of the perianal region.

[0013] Optionally, in step S3, the perianal surface height map consists of multiple pixels, each pixel corresponding to a position on the surface of the perianal region, and the pixel value of the pixel represents the height of the corresponding position relative to the reference plane.

[0014] Optionally, in step S4, the cleaning parameters include at least one of the following: water shape parameters, cleaning location, and cleaning intensity.

[0015] Optionally, in step S1, after the user activates the posterior washing function of the posterior washing system, the detection module in the posterior washing system can emit light toward the perianal region, thereby integrating and forming the original dataset of the perianal region.

[0016] And / or, within a set time period, the detection module continuously collects distance data from different angles and positions in the perianal area.

[0017] Optionally, in step S4, the spray shape of the cleaning water flow is set to a fan shape for the flat portion of the perianal region; and / or, the spray shape of the cleaning water flow is set to a column shape for the folded portion of the perianal region.

[0018] On the other hand, a posterior washing system, wherein, suitable for the posterior washing method, the posterior washing system includes:

[0019] The device includes a support frame and a spray gun. The spray gun is slidably mounted on the support frame and is used to spray cleaning water onto the user's perianal area. The spray gun is also equipped with a detection module for emitting light onto the user's perianal area to collect data.

[0020] Alternatively, the detection module may be a TOF detection module.

[0021] Optionally, the spray gun is also provided with a detection area, and the detection module is able to emit light through the detection area to scan the user's perianal area;

[0022] And / or, the testing area is provided with a waterproof coating or hydrophobic material.

[0023] The beneficial effects of this invention are:

[0024] The present invention enables the posterior washing system to clean the user's perianal area. With the setting of a three-dimensional point cloud model and a perianal surface height map, the posterior washing action can be controlled in real time and the washing parameters can be adjusted accordingly to achieve an adaptive cleaning effect, so as to realize the personalized washing effect of the user. Moreover, no matter how the user moves during the washing process, the position of the spray water and related water flow parameters can be adjusted adaptively. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the posterior washing system according to an embodiment of the present invention;

[0026] Figure 2 This is a top view schematic diagram of the buttock washing system described in an embodiment of the present invention;

[0027] Figure 3 This is a side view schematic diagram of the buttock washing system according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the hidden self-cleaning device in the posterior washing system described in an embodiment of the present invention;

[0029] Figure 5 This is a partial structural schematic diagram of the buttock washing system described in an embodiment of the present invention;

[0030] Figure 6 This is an exploded view of the buttock washing system described in an embodiment of the present invention;

[0031] Figure 7 yes Figure 6 A magnified view of a portion of point A in the middle;

[0032] Figure 8 This is a schematic diagram of the locking seat in the posterior washing system described in an embodiment of the present invention;

[0033] Figure 9 yes Figure 6 A magnified view of a portion of point B in the middle.

[0034] In the picture:

[0035] 10-Support frame; 101-Slide groove; 11-Side slide rail; 12-Mounting frame; 121-Sliding space; 122-First self-cleaning water pipe; 13-First mounting base; 131-Fixed shaft; 14-Second mounting base; 15-Locking base; 151-First insertion block; 152-First slot; 153-Second insertion block; 154-Second slot; 155-Locking block; 1551-Insertion hole; 156-Third insertion block; 157-Limiting block;

[0036] 20-Spray gun; 21-Slide bar; 211-Protrusion; 212-Slider; 201-Water channel; 202-First accommodating space; 203-Second accommodating space; 204-Limiting hole; 213-Clamping block; 214-Limiting seat; 2141-Limiting protrusion; 22-Switching lower cover; 221-First water channel; 222-Second water channel; 223-Water channel interface; 23-Switching bracket; 231-Fixing groove; 232-First spray hole; 233-Second spray hole; 234-Limiting strip; 235-Connector; 24-Housing; 241-Detection area; 242-Through hole; 243-Clamping slot; 244-Limiting groove; 25-Detection module; 26-Sealing block;

[0037] 30-Drive device; 31-Motor; 311-Fixed column; 32-First gear; 321-First fixed shaft; 33-Second gear; 331-Second fixed shaft; 34-Third gear; 341-Third fixed shaft; 35-Fourth gear; 351-Fourth fixed shaft;

[0038] 40 - Self-cleaning device; 401 - Second self-cleaning water pipe. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] The technical solution of this embodiment will be further described below with reference to the accompanying drawings and specific implementation methods.

[0043] Combination Figures 1 to 9 As shown, the posterior washing method in this embodiment mainly uses a posterior washing system to clean the user's perianal area, including the following steps:

[0044] S1. Data is collected from the perianal area using a posterior washing system to form a raw dataset of the perianal area;

[0045] S2. Construct a 3D point cloud model of the perianal region based on the original dataset;

[0046] S3. Use a 3D point cloud model to infer the height map of the perianal surface;

[0047] S4. Control the posterior washing system according to the perianal curvature height diagram and adjust the washing parameters.

[0048] Specifically, in this embodiment, the posterior washing system can clean the user's perianal area. With the setting of a three-dimensional point cloud model and a perianal surface height map, the posterior washing action can be controlled and the washing parameters can be adjusted accordingly to achieve an adaptive cleaning effect, so as to realize the user's personalized washing effect. Moreover, no matter how the user moves during the washing process, the position of the spray water and related water flow parameters can be adaptively adjusted.

[0049] For example, after a user activates the posterior wash function, the spray gun 20 in the posterior wash system can move to the initial working position and use the detection module 25 embedded on the spray gun 20 to emit light onto the user's perianal area. After integration and preprocessing, a three-dimensional point cloud model is constructed, and the perianal surface height map is inferred from this model. Based on the perianal surface height map, the spray gun 20 is driven to move to the target position, and the washing parameters, including the spray angle, pressure, and shape of the water flow, are adjusted. Then, the washing action of the spray gun 20 is controlled to perform rinsing. During rinsing, the spray gun 20 continuously detects the user's perianal area and adaptively adjusts the relevant operating parameters until rinsing is complete, thereby achieving an adaptive and personalized posterior wash function. For example, the detection module 25 is a specific integrated module. In this embodiment, it is set as a TOF (Time of Flight) detection module, but other depth modules, point cloud modules, or area array modules can also be selected to directly and clearly obtain data on the user's perianal area without affecting the movement of the spray gun 20 itself or reducing the user experience.

[0050] Optionally, the posterior washing method includes three processes: data acquisition, data analysis and inference, and motion control. Specifically, during the data acquisition process, when the user activates the posterior washing function, the spray bar 21 in the spray gun 20 moves to the initial working position and activates the detection module 25. Based on the time-of-flight principle of light, the detection module 25 emits light pulses towards the user's perianal area and measures the time it takes for the light to travel from emission to reflection back from the perianal surface. This time is used to calculate the distance between each point on the perianal surface and the detection module 25, completing the activation and scanning. Alternatively, data collection and integration may be required, i.e., continuously collecting distance data from different angles and positions in the perianal area within a set time period. This data will be integrated as a raw dataset containing spatial location information of each point on the perianal surface. For example, the set time period can be configured according to system performance and accuracy requirements.

[0051] This leads to the second process: data analysis and inference. This process involves data analysis and inference, as well as preprocessing, before constructing a 3D point cloud model of the perianal region. Finally, the perianal surface height map is inferred from the 3D point cloud model. Alternatively, upon receiving the raw dataset, data preprocessing is performed, including at least one of the following: noise removal, data calibration, and data normalization. Specifically, noise data is erroneous data that may arise due to factors such as ambient light interference and equipment errors; data calibration ensures the consistency and accuracy of data collected at different times and locations; and data normalization maps the data to a standard numerical range for subsequent calculations. Then, using the preprocessed data, a 3D point cloud model of the perianal region is constructed using the system's built-in algorithm.

[0052] Specifically, the 3D point cloud model consists of multiple 3D coordinate points, each representing a position on the surface of the perianal region. The set of these points can approximately reconstruct the actual shape of the perianal region, achieving the purpose of simulating the shape of the perianal region. Based on the constructed 3D point cloud model, an algorithm is further used to infer the perianal surface height map. In this embodiment, the perianal surface height map consists of multiple pixels and is presented in the form of a two-dimensional image. Each pixel corresponds to a position on the surface of the perianal region, and the pixel value of each pixel represents the height of its corresponding position relative to a certain reference plane. Through such a height map, the system can intuitively understand the condition of the user's perianal region.

[0053] Finally, the third process involves motion control, primarily planning the three-dimensional movement of the spray gun 20, adjusting cleaning parameters, and making real-time dynamic adjustments. First, based on the perianal surface height map, the system calculates the target position coordinates where the spray gun 20 needs to move to ensure complete coverage of the perianal area and avoid any blind spots in the rinsing process.

[0054] Specifically, in this embodiment, the movement of the slide bar 21 on the support frame 10 of the posterior washing system enables precise control along the first direction, i.e., the front-to-back direction. In other embodiments, the support frame 10 can also be set to swing or move along the second direction, as well as along the third direction, to achieve precise control of the spray gun 20 in three dimensions, i.e., the horizontal, vertical, and front-to-back directions. For example, if the height map shows a large depression in a certain area of ​​the perianal region, the system will control the spray gun 20 to move closer to that area and adjust its angle to better rinse the depressed area.

[0055] Secondly, in addition to controlling the position of the spray gun 20, the system also adjusts the cleaning parameters based on the perianal curvature height map. These cleaning parameters include at least one of the following: water pattern parameters, cleaning position, and cleaning intensity. For example, the water pattern parameters include at least the spray angle, pressure, and shape of the water flow, where the water flow shape includes at least a fan shape and a columnar shape. Specifically, for flat areas of the perianal region, a larger fan shape can be used to spray the cleaning water, improving flushing efficiency; while for folds or hard-to-reach areas of the perianal region, a smaller but higher-pressure columnar shape is used to ensure thorough cleaning.

[0056] Throughout the rinsing process, the detection module 25 continuously collects data to update the perianal curvature height map. Then, when the user's body position changes slightly, or when areas are found to be uncleaned, the system can adjust the nozzle position and water flow parameters in real time based on the latest height map, achieving dynamic adaptive control of the entire rinsing process.

[0057] The specific structure of the posterior washing system is described below.

[0058] like Figures 1 to 9 As shown, this embodiment provides a posterior washing system, including a support frame 10, a spray gun 20, and a self-cleaning device 40. The spray gun 20 is slidably mounted on the support frame 10 and is used to spray cleaning water onto the user's perianal area. The self-cleaning device 40 is fixed to the support frame 10 and is used to clean the spray gun 20. Specifically, a detection module 25 is embedded in the spray gun 20 to emit light onto the user's perianal area for data acquisition, thereby adjusting the position of the spray gun 20 and the angle, pressure, and shape of the sprayed water.

[0059] like Figures 1-3As shown, specifically, in this embodiment, the posterior washing system includes a support frame 10, a spray gun 20, a drive device 30, and a self-cleaning device 40. The spray gun 20 is slidably mounted on the support frame 10 and is used to emit light onto the user's perianal area, thereby constructing a three-dimensional point cloud model. Based on this model, the spray position of the spray gun 20, as well as the angle, pressure, and shape of the sprayed water flow, can be adjusted. Furthermore, both the drive device 30 and the self-cleaning device 40 are fixed to the support frame 10. The drive device 30 is used to drive the movement of the spray gun 20 relative to the support frame 10, while the self-cleaning device 40 can clean the spray position of the spray gun 20 to ensure that the spray gun 20 is thoroughly cleaned after each use, preventing contamination. Exemplarily, in this embodiment, the extension direction of the support frame 10 is set as the first direction, the width direction is set as the second direction, and the height direction of the support frame 10 is set as the third direction, with each of the first, second, and third directions being perpendicular to each other.

[0060] like Figure 6 As shown, in this embodiment, the support frame 10 is configured as an arc-shaped structure with a certain curvature, and is divided into upper and lower parts. The upper part is used to connect the spray gun 20 and the self-cleaning device 40, and the lower part is used to fix the drive device 30. Specifically, the upper part of the support frame 10 is provided with a plurality of sliding grooves 101 along the first direction, and the spray gun 20 is slidably disposed in the sliding grooves 101. Figure 8 and Figure 9 As shown, further, the upper part of the support frame 10 has side slide rails 11 protruding outward on both sides along the first direction for connecting the spray gun 20, so as to ensure the stability of the spray gun 20 sliding in the slide groove 101. Specifically, the extension direction of the side slide rail 11 is the same as the extension direction of the slide groove 101, so as to guide the movement direction of the spray gun 20 and ensure the stable movement of the spray gun 20.

[0061] Furthermore, the upper two ends of the support frame 10 are respectively provided with mounting frames 12 and locking seats 15. The mounting frames 12 are used to install the self-cleaning device 40, and the locking seats 15 are used to limit the movement of the spray gun 20. The lower part of the support frame 10 is respectively provided with a first mounting seat 13 and a second mounting seat 14 to connect the drive device 30 and ensure the stable installation of the drive device 30 on the support frame 10. Optionally, the spray gun 20 can move through the mounting frame 12, so that the self-cleaning device 40 can spray self-cleaning water above the spray gun 20 to clean the spray position of the spray gun 20. Figure 6 As shown, the mounting frame 12 is configured as a door-shaped structure and forms a sliding space 121, through which the spray gun 20 can pass. Furthermore, a first self-cleaning water pipe 122 extends outward from one side of the mounting frame 12 along the first direction for connecting to the self-cleaning water pipeline to ensure the supply of self-cleaning water for cleaning the bottom of the spray gun 20.

[0062] like Figure 8 and Figure 9 As shown, in this embodiment, a first insert 151 extends downward along a third direction from the center of the locking seat 15. A first slot 152 is provided on the corresponding support frame 10. The first insert 151 and the first slot 152 are arranged in a one-to-one correspondence, and the first insert 151 can be inserted into the first slot 152. Further, second inserts 156 protrude from both sides of the first insert 151, and the height of the second insert 153 is less than the height of the first insert 151, to assist in positioning the first insert 151. Specifically, second slots 154 are provided on both sides of the first slot 152 on the support frame 10, and both second slots 154 are arranged through the second direction. Thus, when the first insert 151 is inserted into the first slot 152, the second insert 153 can be inserted and confined in the second slot 154, thereby achieving stable installation of the locking seat 15 on the support frame 10.

[0063] Furthermore, the support frame 10 is provided with a third insert block 156 and a limiting block 157 protruding outwards on both sides along the first direction, and the two are spaced apart. The third insert block 156 is located between the side slide rail 11 and the limiting block 157. Specifically, locking blocks 155 are symmetrically arranged on both sides of the locking seat 15, and the locking block 155 is provided with a through hole 1551 along the second direction, wherein the third insert block 156 can be inserted into the through hole 1551, thereby limiting the locking seat 15 on the support frame 10 and preventing the locking seat 15 from falling off. Furthermore, the limiting block 157 abuts against the side of the locking block 155 away from the side slide rail 11 to limit the locking block 155.

[0064] Combination Figures 4-7 As shown, in this embodiment, the spray gun 20 includes a slide bar 21, a switching assembly, a housing 24, and a detection module 25. The switching assembly includes a switching lower cover 22 and a switching bracket 23. Optionally, the switching assembly is embedded in the slide bar 21, the detection module 25 is embedded in the switching assembly, and the housing 24 covers the switching assembly and is fixed in the slide bar 21. The switching assembly is provided with multiple water spray holes, and the switching assembly can switch any of the water spray holes to spray water, so that the water flow passes through the housing 24 to clean the user's perianal area. The detection module 25 can emit light onto the user's perianal area for data collection.

[0065] Specifically, the slide rod 21 is also configured as an arc-shaped structure with a certain curvature, and the curvature of the slide rod 21 corresponds to the curvature of the support frame 10. Furthermore, a protruding strip 211 is provided on the bottom side of the slide rod 21 facing the support frame 10, and the protruding strip 211 corresponds one-to-one with the sliding groove 101. The protruding strip 211 is slidably disposed in the sliding groove 101 to ensure stable sliding of the slide rod 21 on the support frame 10. Figure 7As shown, sliders 212 are also provided on both sides of the slide bar 21 along the first direction, and the sliders 212 and the side slide rails 11 are arranged in a one-to-one correspondence. The sliders 212 and the slide rails 11 are slidably connected, so that with the cooperation of the two sets of structures, namely the protrusion 211 and the groove 101, and the sliders 212 and the slide rails 11, the spray gun 20 is ensured to slide stably on the support frame 10 along its extension direction. For example, the slider 212 is provided with a groove, and the slide rail 11 is slidably connected to the groove to achieve sliding guidance.

[0066] like Figure 6 As shown, the top of the slide bar 21 is sequentially provided with a water channel 201, a first receiving space 202, and a second receiving space 203 along the first direction. These three spaces are interconnected, and the first receiving space 202 is located between the water channel 201 and the second receiving space 203. Specifically, multiple water channels 201 are provided, and these multiple water channels 201 are located on the side of the slide bar 21 away from the support frame 10, used to place water pipes to stably provide a water source. For example, the spray holes on the switching component are arranged one-to-one with the water channels 201 to ensure that the sprayed water flow can individually correspond to the water source; this will not be elaborated further here. Specifically, the first receiving space 202 and the second receiving space 203 are used to place the switching component to achieve the effect of water spraying. For example, a limiting hole 204 is also provided through the second receiving space 203 along the first direction on the side away from the first receiving space 202 to limit and fix the position of the switching component.

[0067] like Figure 7 As shown, a locking block 213 extends along the first direction on the inner wall of the end of the slide rod 21 opposite to the second accommodating space 203, and two locking blocks 213 are provided. Both locking blocks 213 are connected to the limiting seat 214, which is installed on one end of the slide rod 21. Further, a limiting protrusion 2141 is provided at the center of the limiting seat 214, and the two locking blocks 213 are symmetrically arranged with respect to the limiting protrusion 2141. In this embodiment, the limiting protrusion 2141 and the locking blocks 213 cooperate to limit the position of the housing 24 on the slide rod 21. For example, the locking block 213 is provided with a wedge-shaped protrusion, and the wedge-shaped surface is positioned opposite to the limiting protrusion 2141 to facilitate the placement and removal of the housing 24.

[0068] like Figure 6As shown, in this embodiment, the switching lower cover 22 of the switching assembly is provided with multiple water channels, and the switching bracket 23 covers the switching lower cover 22, with water spray holes disposed on the switching bracket 23. Specifically, the water channels, water passages 201, and water spray holes are one-to-one correspondences and interconnected, thereby achieving the independence of the water channels and improving the user experience. Specifically, in this embodiment, the switching lower cover 22 is provided with two water channels, namely the first water channel 221 and the second water channel 222. Correspondingly, the first water channel 221 and the second water channel 222 correspond to the corresponding water passages 201. Optionally, a water channel interface 223 is provided between the switching lower cover 22 and the water passages 201 to connect the water pipes and water channels, ensuring a stable water supply, and the water channel interface 223 can be used to switch the spray water flow and adjust the water flow parameters.

[0069] Correspondingly, the switching bracket 23 has a recessed fixing groove 231 on the side opposite to the switching cover 22, and the detection module 25 is embedded in the fixing groove 231 to achieve installation on the top of the spray gun 20. Furthermore, the switching bracket 23 also has two water spray holes on the side opposite to the switching cover 22, namely a first water spray hole 232 and a second water spray hole 233. The first water spray hole 232 corresponds to the first water path 221, and the second water spray hole 233 corresponds to the second water path 222 to ensure independent water supply. For example, the first water spray hole 232 is a round hole to ensure a columnar spray of water, and the second water spray hole 233 is composed of multiple densely packed small holes to ensure a shower-shaped spray of water. The specific spray shape can be adjusted as needed, and will not be elaborated here.

[0070] Furthermore, a connector 235 is provided at the end of the switching bracket 23 facing the waterway 201. This connector 235 cooperates with the water interface 223 and is installed in the first accommodating space 202 to ensure stable installation of the water interface 223 on the switching assembly. Optionally, a limiting strip 234 protrudes from the end of the switching bracket 23 away from the connector 235. After the switching bracket 23 is placed over the switching cover 22 and the switching assembly is installed entirely in the second accommodating space 203, the limiting strip 234 can engage with the limiting hole 204, restricting its movement in the second and third directions. Combined with the restriction in the first direction by the second accommodating space 203, stable installation of the switching assembly in the support frame 10 is ensured. Exemplarily, this embodiment also includes a sealing block 26, positioned between the support frame 10 and the switching assembly, to ensure that the bottom is sealed when self-cleaning water is sprayed from the first self-cleaning water pipe 122.

[0071] like Figure 6As shown, in this embodiment, the housing 24 is also configured as an arc-shaped structure with a certain curvature, and the curvature of the housing 24 corresponds to the curvature of the slide rod 21 and the support frame 10. Specifically, a through hole 242 is provided at one end of the housing 24 along a third direction, and a bayonet 243 is provided at the other end along a third direction. Optionally, when the housing 24 is fixed on the slide rod 21, the first water spray hole 232 and the second water spray hole 233 are located at the through hole 242, and can spray water through the through hole 242 to clean the user's perianal area. Further, a detection area 241 is also provided on the side of the through hole 242 facing the bayonet 243, so that the detection module 25 embedded in the switching bracket 23 can emit light through the detection area 241 to scan the user's perianal area, and / or, the detection area 241 is provided with a waterproof coating or hydrophobic material to avoid affecting the operation of the detection module 25.

[0072] Furthermore, two corresponding bayonet slots 243 and bayonet blocks 213 are provided, with the bayonet blocks 213 capable of engaging with the bayonet slots 243. Correspondingly, a limiting groove 244 is provided at the middle position of the two bayonet slots 243, located at the end of the housing 24. The limiting groove 244 is correspondingly provided with a limiting protrusion 2141, thereby limiting the housing 24 so that the housing 24 abuts against the limiting seat 214. The engagement of the bayonet blocks 213 and the bayonet slots 243 prevents the housing 24 from moving, thus ensuring the stable installation of the housing 24.

[0073] like Figure 6 As shown, in this embodiment, the driving device 30 includes a motor 31 and a gear set. Specifically, the motor 31 is fixed to the first mounting base 13 of the support frame 10, and fixed shafts 131 are provided on both sides of the first mounting base 13. Fixed posts 311 are arranged one-to-one with the fixed shafts 131. After the fixed posts 311 pass through the motor 31 and the fixed shafts 131 in sequence, the motor 31 is fixed to the support frame 10 to ensure the stable installation of the motor 31. Further, the motor 31 is connected to the gear set to drive the gear set to rotate. The gear set is rotatably mounted on the support frame 10 to drive the spray gun 20 to slide on the support frame 10, thereby changing the position of the spray gun 20 so that it can change the position of the sprayed water flow in real time according to the measurement data of the user's perianal area.

[0074] For example, in this embodiment, the gear set includes four gears: a first gear 32, a second gear 33, a third gear 34, and a fourth gear 35. Each gear is rotatably mounted on a second mounting base 14 at the lower part of the support frame 10 via a fixed shaft. Specifically, the first gear 32 is rotatably connected to a first fixed shaft 321, the second gear 33 is rotatably connected to a second fixed shaft 331, the third gear 34 is rotatably connected to a third fixed shaft 341, and the fourth gear 35 is rotatably connected to a fourth fixed shaft 351. The first fixed shaft 321, the second fixed shaft 331, the third fixed shaft 341, and the fourth fixed shaft 351 are arranged sequentially from the direction closest to the motor 31 to the direction furthest from the motor 31. For example, a rack is provided below the slide bar 21 of the spray gun 20, thereby driving the slide bar 21 to move through the engagement of the gear set and the rack.

[0075] like Figure 1 and Figure 6 As shown, the support frame 10 and / or self-cleaning device 40 are equipped with self-cleaning water pipes for cleaning the spray nozzles of the spray gun 20. Exemplarily, in this embodiment, the support frame 10 is equipped with a first self-cleaning water pipe 122, and the self-cleaning device 40 is equipped with a second self-cleaning water pipe 401. The self-cleaning device 40 is sleeved on the outside of the mounting frame 12 and fixed to the mounting frame 12, thereby ensuring the stable installation of the self-cleaning device 40 and preventing interference with the movement of the spray gun 20. Furthermore, along a third direction, the height of the second self-cleaning water pipe 401 relative to the bottom of the support frame 10 is greater than the height of the first self-cleaning water pipe 122 relative to the bottom of the support frame 10. This allows for simultaneous cleaning of the spray nozzles via both the upper and lower self-cleaning water pipes. Alternatively, it can be configured with one inlet and one outlet to discharge the self-cleaning water. Specific settings can be adjusted as needed, and will not be elaborated here.

[0076] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for washing the buttocks, characterized in that, The posterior hysterosalpingography system is used to clean the user's perianal area, including the following steps: S1. Data is collected from the perianal region using the posterior washing system to form an original dataset of the perianal region; S2. Construct a three-dimensional point cloud model of the perianal region based on the original dataset; S3. Use the three-dimensional point cloud model to infer the height map of the perianal surface; S4. Control the action of the posterior washing system according to the perianal curvature height diagram and adjust the washing parameters.

2. The method for washing the buttocks according to claim 1, characterized in that, In step S2, the original dataset is analyzed and inferred, and preprocessed to construct a three-dimensional point cloud model of the perianal region. And / or, the preprocessing includes at least one of the following: removing noise from the data, calibrating the data, and normalizing the raw data.

3. The method for washing the buttocks according to claim 1, characterized in that, In step S2, the three-dimensional point cloud model consists of multiple three-dimensional coordinate points, each of which represents a position on the surface of the perianal region, in order to simulate the shape of the perianal region.

4. The method for washing the buttocks according to claim 1, characterized in that, In step S3, the perianal surface height map is composed of multiple pixels, each pixel corresponds to a position on the surface of the perianal region, and the pixel value of the pixel represents the height of the corresponding position relative to the reference plane.

5. The method for washing the buttocks according to claim 1, characterized in that, In step S4, the cleaning parameters include at least one of the following: water shape parameters, cleaning location, and cleaning intensity.

6. The method for washing the buttocks according to claim 1, characterized in that, In step S1, after the user activates the posterior washing function of the posterior washing system, the detection module (25) in the posterior washing system can emit light toward the perianal region, thereby integrating and forming the original dataset of the perianal region; And / or, within a set time period, the detection module (25) continuously collects distance data of the perianal region at different angles and positions.

7. The method for washing the buttocks according to claim 1, characterized in that, In step S4, for the flat portion of the perianal region, the spray shape of the cleaning water flow is set to a fan shape; and / or, for the folded portion of the perianal region, the spray shape of the cleaning water flow is a column shape.

8. A bidet system, characterized in that, The posterior washing system, applicable to any one of claims 1-7, comprises: The support frame (10) and the spray gun (20) are slidably mounted on the support frame (10). The spray gun (20) is used to spray cleaning water onto the user's perianal area. The spray gun (20) is equipped with a detection module (25) for emitting light onto the user's perianal area to collect data.

9. The posterior washing system according to claim 8, characterized in that, The detection module (25) is a TOF detection module.

10. The posterior washing system according to claim 8, characterized in that, The spray gun (20) is also provided with a detection area (241), and the detection module (25) can emit light through the detection area (241) to scan the user's perianal area; And / or, the detection area (241) is provided with a waterproof coating or a hydrophobic material.

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