Urinal splash-proof pan surface parameterization design method

Abstract

The invention discloses a urinal splash-proof pan surface parameterization design method. The urinal splash-proof pan surface parameterization design method comprises the following steps that S1, a first test sample is manufactured according to a provided urinal pan surface drawing; s2, performing a urine splashing test on the pan surface of the first test sample according to preset test parameters, obtaining first urine splashing data, and optimizing parameters of the pan surface according to the first urine splashing data and the test parameters to obtain optimized pan surface parameters; s3, making a second test sample based on the optimized pan surface parameter, performing a urine splashing test on the pan surface of the second test sample to obtain second urine splashing data, comparing the second urine splashing data with the first urine splashing data of the first test sample with the optimized pan surface parameter, and adjusting the pan surface parameter of the second test sample according to a comparison result to obtain the second urine splashing data of the second test sample. And finally, the urine-splashing-preventing pan surface is obtained. According to the urinal, the urine splashing prevention effect of the urinal can be improved before ceramic development, so that the development period of a product is shortened while the user experience feeling, the product competitiveness and the market satisfaction degree are improved.

Description

Technical Field

[0001] The present invention relates to the field of sanitary ware, and in particular to a parameterized design method for a urinal anti-splash urine pan surface. Background Art

[0002] When a user uses a urinal, urine collides with the pot surface and splashes. If the pot surface is not designed properly, urine can easily splash out of the urinal, polluting the environment or the user's clothing or body, which is unsanitary. Splashing varies from area to area. Currently, there is no method to verify the urinal's splash-proof performance during the development and production process. This requires actual user experience verification after ceramic development is complete. However, if severe splashing is discovered at this stage, re-development will significantly extend the product development cycle. Summary of the Invention

[0003] In response to the technical problems existing in the prior art, the present invention provides a parametric design method for a urinal anti-splash pot surface, which can optimize the urinal pot surface before ceramic development and improve the anti-splash effect of the urinal, thereby improving user experience, product competitiveness and market satisfaction while shortening the product development cycle.

[0004] The technical solution adopted by the present invention to solve the technical problem is: 1. A parametric design method for a urinal splash-proof urine pan surface, comprising the following steps:

[0005] S1. Produce the first test sample according to the provided drawings of the urinal pot surface;

[0006] S2. Performing a urine splash test on the pot surface of the first test sample according to preset test parameters and obtaining first urine splash data, optimizing the pot surface parameters of the first test sample according to the first urine splash data to obtain optimized pot surface parameters;

[0007] S3. Prepare a second test sample based on the optimized pot surface parameters, perform a urine splash test on the pot surface of the second test sample and obtain second urine splash data, compare the second urine splash data with the first urine splash data of the first test sample with the optimized pot surface parameters, adjust the pot surface parameters of the second test sample according to the comparison result, and obtain the final urine splash-proof pot surface.

[0008] Furthermore, the splash test includes:

[0009] Drawing a plurality of test areas on the pot surface of the first test sample or the second test sample, and setting a collection unit on the periphery of the first test sample or the second test sample;

[0010] Liquid is sprayed on each test area according to the preset test parameters to simulate men's urination behavior, and the liquid splashed on the pot surface falls into the collection unit;

[0011] The first test data on the acquisition unit is acquired, and the second test data of each test area and the total test data of the multiple test areas are processed and calculated as the first urine splashing data or the second urine splashing data.

[0012] Furthermore, the test parameters include liquid flow rate, spray height, spray angle, spray distance and spray duration; liquid is sprayed on different test areas according to different test parameters.

[0013] Furthermore, the landing point range area of the user's urine on the pot surface is determined, and the landing point range area is divided into multiple test areas with preset areas, and the areas of the multiple test areas are the same or different.

[0014] Furthermore, the same test area is sprayed with liquid for multiple tests according to different test parameters to obtain multiple first test data, and the average value of the multiple first test data is used as the second test data of the test area, and the sum of the second test data of multiple test areas is the total test data.

[0015] Furthermore, the collection unit includes a test paper that can be dried and reused or replaced after each test; the number of splashed urine drops falling on the test paper is counted as the first test data.

[0016] Further, optimizing the pot surface parameters of the first test sample according to the first urine splash data and the test parameters, the first urine splash data including the second test data of each test area of the first test sample and the total test data of the multiple test areas of the first test sample;

[0017] Specifically:

[0018] comparing the total test data of the plurality of test areas of the first test sample with the total test data of the standard pot surface, and determining whether the test sample meets the first set condition based on the comparison result;

[0019] If the first set condition is not met, determining a test area with more urine splashing based on the second test data of each test area of the first test sample, modifying the inclination angle and curvature of the pot surface for the test area with more urine splashing, and remaking the first test sample;

[0020] The urine splash test is repeated until the first test sample meets the first set condition.

[0021] Furthermore, if the total test data of the multiple test areas of the first test sample is reduced by a set value compared to the total test data of the standard pot surface, the first test sample meets the first set condition.

[0022] Furthermore, before performing the urine splash test, a functional test is performed on the first test sample. If the functional test passes, the urine splash test is performed. If the functional test fails, the pot surface parameters are corrected, and then the process returns to step S1, and the first test sample is remade using the corrected pot surface drawing.

[0023] Furthermore, the second urine splashing data of the second test sample is compared with the first urine splashing data of the first test sample with optimized pot surface parameters to determine whether the second test sample meets the set second setting conditions. If so, the final anti-urine splashing pot surface is obtained; if not, the pot surface parameters of the second test sample need to be adjusted.

[0024] Furthermore, if the difference between the total test data of multiple test areas of the second test sample and the total test data of multiple test areas of the first test sample with optimized pot surface parameters is within a set range or the difference is less than a set value, the second test sample meets the second set condition.

[0025] Furthermore, the pan surface parameters of the second test sample were adjusted as follows:

[0026] Performing 3D scanning on the pot surface of the second test sample and the pot surface of the first test sample with optimized pot surface parameters;

[0027] Analyzing differences between a pot surface model of the second test sample formed by 3D scanning and a pot surface model of the first test sample having optimized pot surface parameters;

[0028] The pan surface parameters of the second test sample were modified according to the analysis results.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. In this invention, a first test sample is produced based on a provided urinal pot surface drawing. A urine splash test is then conducted on the first test sample. After optimizing the pot surface parameters based on the first urine splash data and test parameters, a second test sample, which requires more expensive materials and a longer production cycle, is produced. This shortens the product development cycle and improves user experience, product competitiveness, and market satisfaction with the designed urine splash-proof pot surface. Furthermore, the urine splash-proof pot surface developed in this invention can be used as a reference for new urinal designs, ensuring that the pot surface of the new urinal has the same user experience as the urine splash-proof pot surface, reducing the number of product design revisions, the costs of experience and related links, and optimizing the design process.

[0031] 2. In the present invention, after the second test sample is produced, a urine splashing test is performed on the pot surface of the second test sample to obtain second urine splashing data, and the second urine splashing data is compared with the first urine splashing data of the first test sample with optimized pot surface parameters. The pot surface parameters of the second test sample are adjusted according to the comparison results, so that the pot surface parameters of the second test sample can be verified, avoiding the urine splashing effect of the second test sample being inconsistent with that of the first test sample due to some factors when the second test sample is formed.

[0032] 3. The urine splash test of the present invention first draws multiple test areas on the pot surface, and then sprays liquid into each test area according to preset test parameters to simulate male urination behavior, thereby obtaining urine splash data from multiple test areas, so as to analyze the urine splash effects in different areas and modify the urinal according to areas with more urine splashing.

[0033] 4. The present invention sprays liquid on the same test area according to different test parameters for multiple tests to obtain multiple first test data. The average value of the multiple first test data is used as the second test data of the test area, and the sum of the second test data of multiple test areas is the total test data, thereby fully covering the actual usage scenarios and avoiding large errors in the data.

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the parametric design method for a urinal anti-splash urine pan surface of the present invention is not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a flow chart of the method of the present invention;

[0036] Figure 2 is a schematic diagram of a urine splash test of the present invention;

[0037] Figure 3 A schematic diagram of multiple test areas is drawn on the pot surface;

[0038] Figure 4 Schematic diagram of the principle for optimizing pot surface parameters Figure 1 ;

[0039] Figure 5 Schematic diagram of the principle for optimizing pot surface parameters Figure 2 ;

[0040] Figure 6 Schematic diagram of the principle for optimizing pot surface parameters Figure 3 ;

[0041] Figure 7 This is a schematic diagram of the structure of the first test sample of the first version;

[0042] Figure 8This is a schematic longitudinal cross-sectional view of the first test sample of the first version;

[0043] Figure 9 This is a schematic cross-sectional view of the first test sample of the first version;

[0044] Figure 10 This is a schematic diagram of the urine splash data distribution of the first test sample of the first version;

[0045] Figure 11 This is a schematic diagram of the structure of the first test sample of the second edition;

[0046] Figure 12 Schematic diagram of the longitudinal section of the first test sample of the second edition;

[0047] Figure 13 This is a schematic cross-sectional view of the first test sample of the second edition;

[0048] Figure 14 This is a schematic diagram of the urine splash data distribution of the first test sample of the second edition;

[0049] Figure 15 This is a schematic diagram of the structure of the first test sample of the third edition;

[0050] Figure 16 This is a schematic diagram of the longitudinal section of the first test sample of the third edition;

[0051] Figure 17 This is a schematic cross-sectional view of the first test sample of the third edition;

[0052] Figure 18 Schematic diagram of urine splash data distribution for the first test sample of the third edition. DETAILED DESCRIPTION

[0053] In the present invention, the terms "first", "second", etc. are only used to distinguish similar objects, rather than to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. In the description, the directions or positional relationships indicated by "upper", "lower", "left", "right", "front", "back", "inside", "outside", "top / bottom", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0054] See Figure 1 As shown, a parametric design method for a urinal splash-proof urine pan surface of the present invention comprises the following steps:

[0055] S1. Prepare the first test sample 1 according to the provided urinal pot surface drawing.

[0056] The provided urinal pot surface drawings are designed based on functional requirements. First Test Sample 1 utilizes low-cost materials with a short production cycle. In actual application, to shorten production time, First Test Sample 1 is made using a prototype made of ABS plastic. Due to the shorter production time of a prototype, testing the prototype first can shorten the product development cycle. First Test Sample 1 can also be made of other materials, without limitation.

[0057] If necessary, the manufactured first test sample 1 undergoes a functional test. If the functional test passes, the subsequent steps proceed. If the functional test fails, the pot surface parameters are corrected to obtain a new pot surface drawing, and the first test sample 1 is remade. The pot surface parameters include the corrected inclination angle α and curvature. The functional test can be based on existing relevant test requirements, such as the relevant test requirements for urinals in the national standard GB6952-2015 sanitary ceramics (e.g., flushing blind area, cleaning function, splash protection, etc.).

[0058] Assuming the first test sample is placed on a horizontal surface, the plane perpendicular to the horizontal plane and located in the left-right direction of the first test sample is defined as the first vertical plane. The plane perpendicular to the horizontal plane and located in the front-back direction of the first test sample is defined as the second vertical plane. The angle between the first vertical plane and the cross-section of the pan surface cut through the second vertical plane is defined as the inclination angle α. Modifications to the pan surface parameters include increasing or decreasing the inclination angle α and increasing or decreasing the curvature.

[0059] S2. The pot surface of the first test sample 1 is subjected to a urine splash test according to preset test parameters and the first urine splash data is obtained. The parameters of the pot surface are optimized according to the first urine splash data and the test parameters to obtain the optimized pot surface parameters;

[0060] The splash urine test includes:

[0061] 1. Draw multiple test areas on the pot surface and set up collection units around the periphery of the first test sample.

[0062] The user's urine landing area on the pot surface is determined, and the landing area is divided into multiple test areas of predetermined sizes. The areas of the multiple test areas can be the same or different. For example, the landing area can be divided into several test areas of a specific shape, such as a rectangle, square, circle, trapezoid, or other polygon. The test areas are arranged in a number of rows and columns, and the specific number can be set according to the size of the landing area.

[0063] In practical applications, since the left and right sides of the pot surface are symmetrical, it is sufficient to test one side of the pot surface (left or right side). For example, the division of multiple test areas is as follows: Figure 3 As shown, a preliminary user survey determined the impact point area 11 of urine on the pot surface, and the impact point area 11 was divided into six rows and three columns of test areas 111, each with an area of 70×50 mm. The division of the multiple test areas is not limited to this method; six rows and four columns are also possible, and the areas of the multiple test areas can vary, depending on user needs. The finer the test area division, the more data obtained, providing more feedback information to facilitate modification of the pot surface.

[0064] 2. Liquid is sprayed on each test area according to the preset test parameters to simulate men's urination behavior, and the liquid splashed from the pot surface falls into the collection unit.

[0065] The test parameters include liquid flow rate, spray height, spray angle, spray distance and spray duration. Liquid is sprayed on different test areas according to different test parameters.

[0066] Specifically, such as Figure 2 As shown, the present invention uses a urine splash test fixture 3 to simulate male urination. The urine splash test fixture 3 includes a support frame 31 and a nozzle 32. The nozzle 32 is rotatably connected to the top of the support frame 31. The spray angle is adjusted by rotating the nozzle 32. The support frame 31 is equipped with a telescopic mechanism to facilitate adjusting the height of the nozzle 32. The spray distance is adjusted by adjusting the distance between the support frame 31 and the first test sample 1.

[0067] 3. Obtain the first test data on the acquisition unit, process and calculate the second test data of each test area and the total test data of multiple test areas as the first urine splashing data.

[0068] In practical applications, the collection unit includes a dry, reusable test paper 2. The number of urine droplets that land on the test paper 2 is counted as the first test data. The size and shape of the test paper 2 can be customized. The test paper can be rectangular or curved. It is placed on the ground where the first test sample 1 is placed, in front of the first test sample 1, or around the front of the first test sample 1.

[0069] Furthermore, the acquisition unit also includes a camera that photographs the test paper 2 after each test. The camera then counts the number of splashed urine drops on each test paper 2, with overlapping drops counted as one. The test paper 2 is specifically water-based writing paper. After each acquisition of the first test data, the water-based writing paper can be allowed to dry naturally or by other means to accelerate drying for the next test. To reduce drying time, the water-based writing paper can be replaced after each acquisition of the first test data. In other embodiments, image recognition can be used to count the number of splashed urine drops.

[0070] For the same test area, liquid is sprayed multiple times according to different test parameters to obtain multiple first test data. The average value of the multiple first test data is used as the second test data of the test area. The sum of the second test data of the multiple test areas is the total test data, which can fully cover the real use scenarios and avoid large errors in the data due to external reasons. For example: the normal value of the male maximum urine flow rate of 25ml / s is used as the liquid flow rate, and the spray time of three seconds is used as the spray duration. Each test area 111 is tested three times with different spray heights, spray angles, and spray distances to obtain multiple first test data. The average value of the multiple first test data is used as the second test data of the test area. The sum of the splashing urine data of the multiple test areas is the total test data. Among them, the liquid flow rate and spray duration can be adjusted as needed, and the different spray heights can be based on different percentile male perineum heights in existing adult body size-related statistical data.

[0071] Furthermore, the pot surface parameters of the first test sample 1 are optimized based on the first urine splash data and the test parameters, wherein the first urine splash data includes the second test data of each test area 111 of the first test sample 1 and the total test data of the multiple test areas 111 of the first test sample 1;

[0072] Specifically:

[0073] Comparing the total test data of the multiple test areas 111 of the first test sample 1 with the total test data of the standard pot surface, and determining whether the first test sample meets the first set condition based on the comparison result;

[0074] If the total test data of the multiple test areas of the first test sample is reduced by a set value compared to the total test data of the standard pot surface, the first test sample meets the first set condition. The set value can be a preset value or a range value, such as a reduction of 20%, or a reduction of more than 20%. Specifically, a urine splash test is performed on the existing standard pot surface to obtain the total test data of the standard pot surface. The process of the urine splash test refers to the urine splash test of the first test sample and will not be described here. If the total test data of the multiple test areas of the first test sample is reduced by 20% compared to the total test data of the standard pot surface, that is, the total test data of the first test sample is 80% of the total test data of the standard pot surface, then the first test sample meets the first set condition, or the total test data of the multiple test areas of the first test sample is reduced by more than 20% compared to the total test data of the standard pot surface, that is, the total test data of the first test sample is less than 80% of the total test data of the standard pot surface.

[0075] If the first set condition is not met, the test area with more urine splashing is determined based on the second test data of each test area. For the test area with more urine splashing, the inclination and curvature of the pot surface are modified according to the test parameters, and the first test sample is remade.

[0076] The urine splash test is repeated until the first test sample meets the first set condition.

[0077] The principle of optimizing the pot surface parameters is as follows: Figure 4-Figure 6 As shown, when the urine splash test tool 3 is testing one of the test areas, the incident angle of the liquid when it is sprayed onto the test area can be used to derive the theoretical reflection angle of the liquid. The theoretical landing point of the splashed liquid can then be calculated based on this theoretical reflection angle and the liquid flow rate. Based on this principle, by adjusting the inclination and curvature of the urinal, the theoretical landing point of the splashed liquid in the test area with the most urine splashing is placed inside the urinal, thereby improving the splash protection effect.

[0078] Specifically, the process of optimizing the parameters of the pot surface is as follows:

[0079] The structure of the first test sample of the first version made according to the provided urinal pot surface drawing is as follows Figure 7-Figure 9 As shown, the first test sample of the first version can pass the requirements of the functional test. After the urine splash test of the first test sample of the first version, the urine splash data of each test area is obtained as follows Figure 10 As shown, by comparing the total test data of the first test sample of the first edition with the total test data of the standard pot surface, it is found that the total test data of the first test sample of the first edition is similar to the total test data of the standard pot surface, which does not meet the first setting condition. Therefore, the parameters of the first edition pot surface need to be modified.

[0080] The pot surface of the first test sample of the first edition is approximately perpendicular to the horizontal plane, that is, the inclination angle is close to 0°, and analysis of the urine splashing data of each test area shows that the middle test area has more urine splashing. According to the above principle of optimizing the pot surface parameters, the inclination angle α at the middle test area of the second edition pot surface is increased, for example, changed to about 6.8° (the maximum inclination angle based on the space evaluation required for product dimensions, structure and installation accessories), so that the theoretical landing point of the liquid splashed in the middle test area is as far as possible inside the urinal to enhance the splash-proof effect. At the same time, in order to ensure a smooth transition of the overall pot surface and meet the requirements of high-pressure splash-proofing, the curvature of the second edition pot surface from the center to the two outer sides changes greatly, which increases the resistance of the flushing water flow to extend outward and avoids water splashing out of the outside of the pot surface. The second edition first test sample is produced according to the above optimization. The structure of the second edition first test sample is as follows: Figure 11-13 As shown, the urine splash test was repeated for the first test sample of the second version. After the urine splash test, the urine splash data of each test area was obtained as shown in FIG. Figure 14As shown, after analysis, the total test data of the first test sample of the second version is reduced by about 25% compared with the total test data of the first test sample of the first version, meeting the first set condition.

[0081] However, during the functional test before the urine splash test, it was found that the splash resistance of the first test sample of the second edition could not meet the requirements. Water splashed when flushed at high pressure (0.55 MPa), and the flushing blind area could not meet the requirements under the first-level water efficiency (0.5L) water volume. It could only meet the requirements at the second-level water efficiency (1.5L) (that is, the functional test failed). Therefore, the first test sample of the second edition needs to be further optimized.

[0082] Since the urine splashing test of the first test sample of the second edition verified that changing the inclination angle α of the pot surface to about 6.8° can reduce urine splashing, the first test sample of the third edition maintains the inclination angle of the pot surface of the first test sample of the second edition, focusing on meeting the problems of high-pressure splash prevention and large flushing blind area under the first-level water effect. Therefore, the curvature is adjusted, and the curvature of the first test sample of the second edition is reduced, so that the first test sample of the third edition adopts a curvature change from the center to both sides, which is first gentle and then large-angle. This can reduce the flushing resistance in the central section and make the water flow more outward. The large angle change near the outside increases the flushing resistance, and controls the distance between the water flow and the outer edge of the pot surface, thereby meeting the requirements of high-pressure splash prevention and low flushing blind area.

[0083] According to the above optimization, the first test sample of the third version is made. The structure of the first test sample of the third version is as follows: Figure 15-17 As shown, the urine splash test was repeated for the first test sample of the third edition. After the urine splash test, the urine splash data of each test area was obtained as follows: Figure 18 As shown in the figure, the total number of urine splashing drops of the first test sample of the third edition is reduced by 45% compared with the total test data of the first test sample of the first edition, and various performance requirements can be met under the first-level water efficiency (0.5L). Therefore, the pot surface parameters of the first test sample of the third edition are used as the final optimized pot surface parameters.

[0084] Similarly, if the test area with more urine splashing is other test areas, it is necessary to analyze the theoretical reflection angle and theoretical landing point of the liquid entering the test area, and modify the inclination angle and curvature of the test area under the premise of considering the adjacent test areas and functions, so as to make the reflection direction as inward and downward as possible, so that the theoretical landing point of the liquid falls as far as possible inside the urinal.

[0085] S3. Prepare a second test sample based on the final optimized pot surface parameters, and perform the above-mentioned urine splashing test on the pot surface of the second test sample to obtain second urine splashing data. The urine splashing test process refers to the urine splashing test of the first test sample and will not be described here. The second test sample uses materials with higher costs and longer production cycles. In actual applications, the second test sample can be a ceramic body, wherein the second urine splashing data includes the urine splashing data of each test area of the second test sample and the total test data of multiple test areas of the second test sample. The second urine splashing data is compared with the first urine splashing data of the first test sample with optimized pot surface parameters, and the pot surface parameters of the second test sample are adjusted according to the comparison results to obtain the final urine splashing-proof pot surface.

[0086] Since the ceramic body is formed due to complex factors such as structure, molding process and firing process, the shape of the pot surface of the formed ceramic body may be inconsistent with the prototype, which will affect the final splash-proof effect, so the ceramic body needs to be verified.

[0087] The second urine splash data of the second test sample is compared with the first urine splash data of the first test sample with optimized pot surface parameters to determine whether the second test sample meets the second set conditions. If so, the final urine splash-proof pot surface is obtained. If not, the pot surface parameters of the second test sample need to be adjusted.

[0088] Specifically, if the second urine splash data of the second test sample is similar to the first urine splash data of the first test sample with optimized pot surface parameters, then the second test sample meets the second set condition. The second set condition may be: the difference between the total test data of multiple test areas of the second test sample and the total test data of the first test sample with optimized pot surface parameters is within a set range or the difference is less than a set value.

[0089] Adjusting the pan surface parameters of the second test sample specifically involves: performing a 3D scan of the pan surface of the second test sample and the pan surface of the first test sample with optimized pan surface parameters; analyzing the differences between the pan surface model of the second test sample generated by the 3D scan and the pan surface model of the first test sample with optimized pan surface parameters; and correcting the pan surface parameters of the second test sample based on the analysis results. Specifically, the inclination angle and curvature of the pan surface of the second test sample are compared with those of the first test sample with optimized pan surface parameters to ensure consistency, and adjusting the inclination angle and curvature of the second test sample.

[0090] After the splash-proof urine pan surface is established, if there is a urinal design in the future, it can be made with reference to the splash-proof urine pan surface, so that the new urinal can also get the same user experience effect, reducing the number of subsequent product design modifications and various costs and time of related links such as experience, and optimizing the design process.

[0091] The parametric design method for the splash-proof urine pan surface of a urinal of the present invention is the same as that of the prior art or can be implemented by using the prior art.

[0092] The above embodiment is only used to further illustrate a parametric design method for a urinal splash-proof urine pan surface of the present invention, but the present invention is not limited to the embodiment. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A parametric design method for a urinal splash-proof urine pan surface, characterized by: The following steps are involved: S1. Produce the first test sample according to the provided drawings of the urinal pot surface; S2. Performing a urine splash test on the pot surface of the first test sample according to preset test parameters and obtaining first urine splash data, optimizing the pot surface parameters of the first test sample based on the first urine splash data to obtain optimized pot surface parameters; S3. Prepare a second test sample based on the optimized pot surface parameters, perform the urine splash test on the pot surface of the second test sample and obtain second urine splash data, compare the second urine splash data with the first urine splash data of the first test sample with the optimized pot surface parameters, adjust the pot surface parameters of the second test sample according to the comparison result, and obtain a final urine splash-proof pot surface.

2. The parametric design method for a urinal splash-proof urine pan surface according to claim 1, characterized in that: The splash test includes: Drawing a plurality of test areas on the pot surface of the first test sample or the second test sample, and setting a collection unit on the periphery of the first test sample or the second test sample; Spraying liquid on each of the test areas according to preset test parameters to simulate a man's urination behavior, and the liquid splashed from the pot surface falls onto the collection unit; The first test data on the acquisition unit is acquired, and second test data of each test area and total test data of the plurality of test areas are calculated to obtain the first urine splashing data or the second urine splashing data.

3. The parametric design method for a urinal splash-proof urine pan surface according to claim 1 is characterized in that: The test parameters include liquid flow rate, spray height, spray angle, spray distance and spray duration; Liquid is sprayed on different test areas according to different test parameters.

4. The parametric design method for a urinal splash-proof urine pan surface according to claim 2, characterized in that: The landing point range area of the user's urine on the pot surface is determined, and the landing point range area is divided into a plurality of test areas with preset areas, and the areas of the plurality of test areas are the same or different.

5. The parametric design method for a urinal splash-proof urine pan surface according to claim 2, characterized in that: For the same test area, liquid is sprayed according to different test parameters for multiple tests to obtain multiple first test data, and the average value of the multiple first test data is used as the second test data of the test area, and the sum of the second test data of multiple test areas is used as the total test data.

6. The parametric design method for a urinal splash-proof urine pan surface according to claim 5, characterized in that: The collection unit includes a test paper that can be dried and reused or replaced after each test; the number of splashed urine drops falling on the test paper is counted as the first test data.

7. The parametric design method for a urinal splash-proof urine pan surface according to claim 2, characterized in that: Optimizing the pot surface parameters of the first test sample according to the first urine splash data and test parameters, the first urine splash data including the second test data of each test area of the first test sample and the total test data of the multiple test areas of the first test sample; Specifically: comparing the total test data of the plurality of test areas of the first test sample with the total test data of a standard pot surface, and determining whether the first test sample meets a first set condition based on the comparison result; If the first set condition is not met, determining the test area with more urine splashing based on the second test data of each test area of the first test sample, modifying the inclination angle and curvature of the pot surface for the test area with more urine splashing, and remaking the first test sample; The urine splash test is repeated until the first test sample meets a first set condition.

8. The parametric design method for a urinal splash-proof urine pan surface according to claim 7, characterized in that: If the total test data of the plurality of test areas of the first test sample is reduced by a set value compared to the total test data of the standard pot surface, the first test sample meets the first set condition.

9. The parametric design method for a urinal splash-proof urine pan surface according to claim 1, characterized in that: Before performing the urine splash test, the method further includes performing a functional test on the first test sample. If the functional test passes, the urine splash test is performed. If the functional test fails, the pot surface parameters are corrected, and the method returns to step S1 to re-produce the first test sample using the corrected pot surface drawing.

10. The parametric design method for a urinal splash-proof urine pan surface according to claim 1, characterized in that: The second urine splashing data of the second test sample is compared with the first urine splashing data of the first test sample with the optimized pot surface parameters to determine whether the second test sample meets the set second setting conditions. If so, the final anti-urine splashing pot surface is obtained; if not, the pot surface parameters of the second test sample need to be adjusted.

11. The parametric design method for a urinal splash-proof urine pan surface according to claim 10, characterized in that: If the difference between the total test data of multiple test areas of the second test sample and the total test data of multiple test areas of the first test sample with the optimized pot surface parameters is within a set range or the difference is less than a set value, the second test sample meets the second set condition.

12. The parametric design method for a urinal splash-proof urine pan surface according to claim 10, characterized in that: The adjustment of the pot surface parameters of the second test sample is specifically as follows: Performing a 3D scan on the pot surface of the second test sample and the pot surface of the first test sample having the optimized pot surface parameters; analyzing a difference between the pot surface model of the second test sample formed by 3D scanning and the pot surface model of the first test sample having the optimized pot surface parameters; The pan surface parameters of the second test sample are modified according to the analysis results.

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