Toothbrush testing device

Abstract

The utility model discloses toothbrush testing equipment, and relates to the technical field of detection equipment. The toothbrush test equipment comprises a workbench, an environment simulation device, a clamping device, a driving device and a detection device, the environment simulation device comprises a simulation container, the simulation container is mounted on the workbench, and the simulation container is provided with a mounting table for mounting a tooth mold; the clamping device is installed on the workbench in a sliding mode and used for clamping and fixing a toothbrush and enabling a bristle cluster to abut against the tooth mold; the driving device is mounted on the workbench, is in driving connection with the clamping device and is used for driving the clamping device to reciprocate so as to realize the brushing action of the brush head on the tooth mold; the detection device is used for detecting the deformation degree of the bristle clusters after the preset brushing duration. According to the technical scheme, the toothbrush testing equipment can be used for detecting whether the actual service life of the toothbrush head meets the theoretical service life or not.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to a toothbrush testing device. Background Technology

[0002] Toothbrushes are the most widely used and common oral hygiene product. When cleaning the mouth with a toothbrush, the brush head, driven manually or electrically, contacts the tooth surface with high-frequency or specific-angle mechanical movements. The friction of the bristles removes soft plaque and newly formed biofilm from the tooth surface. Repeated friction causes the bristles to wear down and deform, reducing cleaning effectiveness and requiring regular replacement of the toothbrush or brush head.

[0003] In the existing technology, there is a lack of testing on data related to the actual service life of the brush head, the indicators for judging whether the quality of toothbrush production is up to standard are not comprehensive enough, and consumers do not have data related to the actual service life of the brush head to refer to when choosing related products. Utility Model Content

[0004] This application provides a toothbrush testing device that can be used to detect whether the actual service life of a toothbrush head meets the theoretical service life.

[0005] In a first aspect, embodiments of this application provide a toothbrush testing device for testing the service life of a toothbrush head. The brush head includes a brush head body and bristle tufts disposed on the brush head body. The toothbrush testing device includes:

[0006] Workbench;

[0007] An environmental simulation device includes a simulation container mounted on the workbench, the simulation container having a mounting platform for mounting a dental mold;

[0008] A clamping device is slidably mounted on the worktable. The clamping device is used to clamp and fix the toothbrush and to make the bristle tuft abut against the tooth mold.

[0009] A driving device, mounted on the worktable and connected to the clamping device, is used to drive the clamping device to reciprocate, thereby realizing the brushing action of the brush head on the dental mold; and

[0010] A detection device is used to detect the degree of deformation of the bristle clusters after a preset washing time.

[0011] Based on the above embodiments, by setting a clamping device and a simulation container on the worktable, the simulation container has a mounting platform for mounting a dental mold. When the toothbrush needs to be tested, the dental mold can be mounted on the mounting platform, and the toothbrush can be fixed on the clamping device, so that the bristles of the toothbrush abut against the dental mold. By setting a driving device on the worktable and setting the clamping device to be slidable on the worktable, the clamping device can reciprocate relative to the simulation container under the drive of the driving device, thereby driving the toothbrush held by the clamping device to reciprocate relative to the dental mold, realizing the brushing action of the brush head on the dental mold, that is, realizing the simulation of the actual brushing action of the toothbrush.

[0012] Then, by setting up a detection device, the degree of deformation of the bristles after a preset brushing time is measured. Based on the degree of bristle deformation, the actual service life of the brush head is determined, thus achieving automated testing of the brush head's service life. Using the actual service life of the toothbrush head as one of the indicators for judging the quality of toothbrush production can help companies better produce qualified toothbrushes, and at the same time help users make better toothbrush choices.

[0013] In one embodiment, the detection device includes:

[0014] The imaging module is used to capture detection images containing the brush head before and after a preset washing time; and

[0015] The processor is communicatively connected to the imaging module to acquire the detection image. The processor is used to identify the size of the bristle cluster before and after the test based on the detection image, and to calculate the deformation rate of the bristle cluster.

[0016] Based on the above embodiments, the automation level of the testing process of the toothbrush testing device can be improved.

[0017] In one embodiment, the deformation rate includes a horizontal deformation rate and a vertical deformation rate;

[0018] The horizontal deformation rate is the degree of deformation of the first dimension of the bristle cluster; the vertical deformation rate is the degree of deformation of the second dimension of the bristle cluster.

[0019] Wherein, the first dimension is the maximum length of the bristle tuft in the length direction of the toothbrush, and the second dimension is the maximum length of the bristle tuft in the vertical direction of the brush head body.

[0020] Based on the above embodiments, the degree of deformation of the bristle tufts in the horizontal and vertical directions was comprehensively tested, and the problem of inconsistent bristle tuft size at different positions, which makes it impossible to obtain accurate dimensions, can be avoided.

[0021] In one embodiment, the processor is further configured to compare the larger of the horizontal deformation rate and the vertical deformation rate with a preset deformation rate to determine whether the service life of the brush head meets the standard; or,

[0022] The processor is also used to compare the horizontal deformation rate with a preset horizontal deformation rate and the vertical deformation rate with a preset vertical deformation rate to determine whether the service life of the brush head meets the standard.

[0023] Based on the above embodiments, the automation level of the testing process of the toothbrush testing device can be further improved.

[0024] In one embodiment, the dental mold includes a plurality of dental mold units arranged continuously in the direction of reciprocating movement of the clamping device, wherein the tooth surface types of the plurality of dental mold units facing the brush head include at least the inner surface of canines, the outer surface of canines, and the occlusal surface of molars.

[0025] Based on the above embodiments, the brush head can be used to comprehensively clean different tooth surface types in a real brushing scenario, thereby improving the realism of the test and the accuracy of the test results.

[0026] In one embodiment, the simulated container and the clamping device are spaced apart in a first direction, and the simulated container has an opening on the side facing the clamping device. After the toothbrush is clamped and fixed by the clamping device, the brush head extends into the simulated container through the opening; the first direction is the length direction of the toothbrush after it is clamped.

[0027] Based on the above embodiments, the action of a user holding one end of the toothbrush along its length and having the brush head at the other end come into contact with the teeth in a real brushing scenario is simulated.

[0028] In one embodiment, the simulated container includes a water tank and a spray module, the mounting platform is disposed in the water tank, the spray module is disposed in the water tank and includes a nozzle facing the mounting platform, the nozzle being used to spray toothpaste water onto the dental mold.

[0029] Based on the above embodiments, the actual brushing scenario was simulated, where users brush their teeth with toothpaste, thus avoiding the influence of particles in the toothpaste on the accuracy of the test results.

[0030] In one embodiment, the bottom of the water tank is provided with a drain outlet, and the spray module further includes:

[0031] A drain valve is provided at the drain outlet; and

[0032] A water pump is connected to the drain valve and the nozzle via water pipes.

[0033] Based on the above embodiments, the accumulation of toothpaste liquid in the water tank is avoided, which would affect the brush head's ability to clean the tooth mold; at the same time, the toothpaste liquid is recycled, saving the need for water tanks and drainage devices, and reducing testing costs.

[0034] In one embodiment, the drain outlet is located on the side of the water tank away from the opening.

[0035] Based on the above embodiments, the drainage path can avoid the reciprocating motion area of ​​the brush head, and the liquid does not need to pass through the contact area between the brush head and the dental mold when it is discharged, reducing splashing caused by mechanical movement agitating the liquid.

[0036] In one embodiment, the environmental simulation device further includes:

[0037] A horizontal moving platform, installed on the workbench; and

[0038] A lifting platform is installed on the horizontal moving platform;

[0039] The simulation container is mounted on the lifting platform. The horizontal moving platform is used to adjust the horizontal position of the simulation container so that the dental mold is aligned with the brush head. The lifting platform is used to adjust the vertical position of the simulation container so as to adjust the pressure applied by the brush head to the dental mold.

[0040] Based on the above embodiments, by setting up a horizontal moving platform, the position of the dental mold and the brush head can be calibrated; by setting up a lifting platform, the pressure applied by the brush head to the dental mold can be adjusted.

[0041] In one embodiment, the mounting platform is provided with a first mounting groove and a second mounting groove, the second mounting groove being disposed on the bottom wall of the first mounting groove, and the first mounting groove being used to place the dental mold;

[0042] The environmental simulation device also includes:

[0043] A pressure sensor, installed in the second mounting slot, is used to detect the pressure applied by the brush head to the dental mold.

[0044] Based on the above embodiments, by setting a pressure sensor to detect the pressure applied to the dental mold when the brush head presses against it, the pressure value can be adjusted to a suitable range.

[0045] In one embodiment, the worktable is provided with a slide rail extending along a first direction, and the clamping device includes:

[0046] The slide table is slidably connected to the slide rail;

[0047] A clamping assembly, disposed on the slide, is used to clamp and fix the toothbrush; and

[0048] A fixing assembly includes a fixing column and a cantilever, the fixing column being disposed on the slide table, one end of the cantilever being connected to the fixing column, and the other end extending above the mounting platform;

[0049] During testing, the cantilever presses against the brush head, with the brush head positioned vertically between the dental mold and the cantilever.

[0050] Based on the above embodiments, by positioning the brush head at its upper vertical limit between the dental mold and the cantilever, the brush head is prevented from shaking during the brushing process of the dental mold, thus avoiding large changes in the pressure applied by the brush head to the dental mold and affecting the accuracy of the final test results.

[0051] In one embodiment, the clamping assembly includes a plurality of clamps spaced apart in the first direction, each clamp including two clamping arms spaced apart in the second direction, wherein one clamping arm is movable toward or away from the other clamping arm, and the toothbrush is clamped between the two clamping arms; the second direction is perpendicular to the first direction.

[0052] Based on the above embodiments, by arranging multiple clamps at intervals in the first direction, the stability of the clamping and fixing effect of the clamping assembly on the toothbrush can be improved.

[0053] In one embodiment, the driving device is located on the side of the clamping device facing away from the environmental simulation device, and includes:

[0054] The motor is mounted on the worktable;

[0055] A crank assembly, wherein the motor drives the crank assembly to rotate the crank assembly about a vertical direction; and

[0056] A connecting rod is hinged at one end to the crank assembly and at the other end to the clamping device; the connecting rod drives the clamping device to reciprocate in the first direction through the rotation of the crank assembly.

[0057] Based on the above embodiments, by setting up a crank assembly and a connecting rod, the rotation of the motor is converted into the reciprocating movement of the clamping device in the first direction, thereby simulating the repeated friction of the toothbrush on the teeth in the actual brushing scenario.

[0058] In one embodiment, the toothbrush testing device further includes:

[0059] A control device is provided on the workbench, and the control device is electrically connected to the motor. The control device is used to control the motor's on / off state and rotation speed.

[0060] Based on the above embodiments, by setting up a control device, comprehensive control over the motor's on / off state and rotation speed can be achieved, thereby improving the ease of operation of the toothbrush testing equipment.

[0061] In one embodiment, the toothbrush testing device further includes:

[0062] A display device, disposed on the worktable, is communicatively connected to the detection device, and is used to display the detection results; and / or

[0063] The display device is communicatively connected to the control device, and the display device is used to display the running time and speed of the motor; and / or,

[0064] The display device is communicatively connected to the control device, and the display device is configured to send signals to the control device to control the motor via touch.

[0065] Based on the above embodiments, by setting a display device to display the test results or the running time and speed of the motor, it is convenient for staff to view the test progress and results and plan subsequent test work; by configuring the display device to send signals to the control device through touch, the ease of operation of the toothbrush testing equipment can be further improved. Attached Figure Description

[0066] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0067] Figure 1 This is a schematic diagram of the structure of an embodiment of the toothbrush testing device of this application;

[0068] Figure 2 This is a schematic diagram of the structure of a simulated container in one embodiment of the toothbrush testing device of this application;

[0069] Figure 3 This is a schematic diagram of the lifting platform in one embodiment of the toothbrush testing device of this application;

[0070] Figure 4 This is a schematic diagram of the installation structure of the slide on the worktable in one embodiment of the toothbrush testing device of this application.

[0071] Explanation of icon numbers:

[0072] 10. Toothbrush testing equipment; 100. Workbench; 110. Slide rail; 200. Environmental simulation device; 210. Simulation container; 211. Mounting platform; 2111. First mounting slot; 2112. Second mounting slot; 212. Water tank; 2121. Base; 2122. Enclosure; 213. Opening; 214. Spray module; 2141. Spray head; 2142. Drain valve; 2143. Water pump; 220. Horizontal moving platform; 230. Lifting platform; 231. First platform; 232. Second platform; 233. Support rod; 300. Clamping device; 310. Slide table; 320. Clamping assembly; 321. Fixture; 3211. Clamping arm; 3212. Clamping column; 3213. Clamping beam; 330. Fixing assembly; 331. Fixing column; 332. Cantilever; 400. Drive device; 410. Crank assembly; 420. Connecting rod; 500. Display device;

[0073] X, first direction; Y, second direction; Z, third direction.

[0074] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0075] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0076] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0077] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0078] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0079] This application proposes a toothbrush testing device that can test the service life of toothbrush heads to determine whether the actual service life of the toothbrush head meets the theoretical service life. The actual service life of the toothbrush head can be used as one of the indicators for judging the quality of toothbrush production. This can help companies produce qualified toothbrushes and help users choose toothbrushes more effectively.

[0080] In this embodiment, the brush head includes a brush head body and bristle tufts disposed on the brush head body. Please refer to [link to relevant documentation]. Figure 1 The toothbrush testing device 10 includes a workbench 100, an environmental simulation device 200, a clamping device 300, a driving device 400, and a testing device (not shown). The environmental simulation device 200 includes a simulation container 210, which is mounted on the workbench 100 and has a mounting platform 211 for mounting a dental mold. The clamping device 300 is slidably mounted on the workbench 100 and is used to clamp and fix the toothbrush, causing the bristles to abut against the dental mold. The driving device 400 is mounted on the workbench 100 and drives the clamping device 300 to reciprocate, thereby achieving the brushing action of the brush head on the dental mold. The testing device is used to detect the degree of deformation of the bristles after a preset brushing time.

[0081] Understandably, when using a toothbrush to clean the mouth, the bristles, driven manually or electrically, contact the tooth surface with high-frequency or specific-angle mechanical movements, using friction to scrape away soft plaque and newly formed biofilm. After prolonged use, the bristles wear down and deform due to friction with the tooth surface. When the deformation exceeds a certain range, on the one hand, the friction between the bristles and the tooth surface decreases when the same force is applied to the brush head, resulting in poorer cleaning; on the other hand, shorter bristles reduce flexibility and may cause injury to the mouth during brushing. In this case, the brush head or toothbrush needs to be replaced. Therefore, the degree of bristle deformation can be used to determine whether the brush head can continue to be used.

[0082] By setting a clamping device 300 and a simulation container 210 on the workbench 100, the simulation container 210 has a mounting platform 211 for mounting a dental mold. When testing the toothbrush, the dental mold can be mounted on the mounting platform 211, and the toothbrush can be fixed on the clamping device 300, so that the bristles of the toothbrush abut against the dental mold. By setting a driving device 400 on the workbench 100 and setting the clamping device 300 to slide on the workbench 100, the clamping device 300 can reciprocate relative to the simulation container 210 under the drive of the driving device 400, thereby driving the toothbrush held by the clamping device 300 to reciprocate relative to the dental mold, realizing the brushing action of the brush head against the dental mold, that is, realizing the simulation of the actual brushing action of the toothbrush. Furthermore, by setting a detection device, the degree of deformation of the bristles after a preset brushing time is detected. Based on the degree of deformation of the bristles, it is determined whether the actual service life of the brush head meets the standard, realizing the automated testing of the service life of the brush head.

[0083] It should be noted that the theoretical lifespan of the brush head is set to a preset brushing time. After the brush head completes the preset brushing time on the dental model, the degree of deformation of the bristles is detected to determine whether the brush head can continue to be used, thus improving the intuitiveness and reliability of the test results. If the brush head is found to be usable, it indicates that the actual lifespan of the brush head is not less than the theoretical lifespan, and the brush head lifespan indicator meets the standard; conversely, if the brush head is found to be unusable, it indicates that the actual lifespan of the brush head is less than the theoretical lifespan, and the brush head lifespan indicator does not meet the standard.

[0084] Specifically, the theoretical lifespan of a toothbrush head is calculated using the formula: T = h * n; where T is the theoretical lifespan of the brush head, h is the daily usage time of the toothbrush, and n is the number of days the toothbrush is used. For example, based on user scenarios and habits, assuming brushing twice a day for two minutes each time, the daily usage time h is 4 minutes; the typical design lifespan of a brush head is 3 months, meaning the number of days n is 90 days; therefore, the theoretical lifespan T is 360 minutes, or 6 hours. This means that the preset brushing time is 6 hours, and the actual performance of the brush head is judged by the degree of deformation of the bristles after 6 hours of brushing.

[0085] In one embodiment, the detection device includes an imaging module and a processor; the imaging module is used to capture detection images containing the brush head before and after a preset washing time; the processor is communicatively connected to the imaging module to acquire the detection images, and the processor is used to identify the size of the bristle tufts before and after the test based on the detection images, and calculate the deformation rate of the bristle tufts.

[0086] Optionally, the imaging module can be mounted on the workbench 100 or on the simulation container 210. It captures images of the clamped toothbrush to obtain a detection image including the brush head. Alternatively, the imaging module can be set up independently outside the workbench 100 to capture images of the brush head separately before and after testing, obtaining detection images including the brush head. Specifically, the imaging module captures images of the same brush head before and after a preset washing time, obtaining a first detection image of the brush head in its initial state and a second detection image of the brush head after the preset washing time has been completed. The imaging module can be a camera or other electronic devices with image acquisition capabilities; no specific limitations are imposed here.

[0087] Accordingly, the processor can be mounted on the workbench 100 or set up independently outside the workbench 100. The processor is communicatively connected to the imaging module, so that after the imaging module captures a detection image containing the brush head, it can communicatively transmit the detection image to the processor. The processor can identify the size of the bristle tufts on the brush head in the corresponding state based on the acquired first and second detection images. For example, if the size of the brush head body remains unchanged, the processor can establish a conversion ratio between pixel size and actual physical size based on the ratio of the actual physical size of the brush head body to the pixel size of the brush head body in the detection image; then, based on the pixel size of the bristle tufts in the detection image and the conversion ratio, the actual physical size of the bristle tufts is obtained. Then, the calculation formula is used... Calculate the deformation rate of the bristle tuft; where P represents the deformation rate, L1 represents the size of the bristle tuft before the test, and L2 represents the size of the bristle tuft after the preset washing time.

[0088] Understandably, after a preset brushing time, the repeated friction between the brush head and the tooth surface causes wear and tear on the bristles, resulting in a shorter vertical length of the bristles on the brush head. Furthermore, the end of the bristles furthest from the brush head may bend and deform due to friction during brushing, causing some bristles to bend and disperse outwards, reducing bristle density at that end and increasing the overall length of the bristles. Both excessively short vertical bristles and insufficient bristle density at the furthest end of the brush head will affect the brush head's cleaning effectiveness and shorten its lifespan.

[0089] Therefore, in one embodiment, the deformation rate of the bristle tuft calculated by the processor includes a horizontal deformation rate and a vertical deformation rate; the horizontal deformation rate is the degree of deformation of a first dimension of the bristle tuft; the vertical deformation rate is the degree of deformation of a second dimension of the bristle tuft; wherein, the first dimension is the maximum length of the bristle tuft in the length direction of the toothbrush, and the second dimension is the maximum length of the bristle tuft in the vertical direction of the brush head body.

[0090] It is understandable that a bristle tuft is formed by multiple bundles of bristles arranged along a first direction X and a second direction Y on the brush head body. The first direction X is the length direction of the toothbrush, and the second direction Y is perpendicular to the first direction X. The vertical direction of the brush head body is a third direction Z, which is perpendicular to both the first direction X and the second direction Y. Therefore, the length of the bristle tuft in the first direction X will vary depending on the measurement position in the second direction Y and the third direction Z. Similarly, the length of the bristle tuft in the third direction Z will also vary depending on the measurement position in the first direction X and the second direction Y. By using the maximum length of the bristle tuft in the first direction X as the first dimension of the bristle tuft, and the maximum length of the bristle tuft in the third direction Z as the second dimension of the bristle tuft, the problem of inconsistent dimensions of the bristle tuft at different positions, which would prevent the accurate measurement from being obtained, is avoided.

[0091] Based on the first detection image, the processor identifies the first and second dimensions of the bristle tuft before testing. Then, based on the second detection image, it identifies the first and second dimensions of the bristle tuft after a preset washing time. Finally, using the aforementioned deformation rate calculation formula, it obtains the horizontal deformation rate P1 and vertical deformation rate P2 of the bristle tuft. To avoid the inability to identify the first and second dimensions of the bristle tuft within a single detection image, the imaging module can capture multiple detection images containing the brush head from different directions before and after the preset washing time, allowing the processor to identify the first and second dimensions of the bristle tuft from different detection images.

[0092] The processor also has evaluation capabilities, which can be used to compare the horizontal deformation rate P1 and the vertical deformation rate P2 with preset deformation rates to determine whether the brush head's service life meets the standard. In other words, the detection device can directly provide the result of whether the brush head's service life meets the standard through imaging, recognition, calculation, and evaluation, further improving the automation level of the testing process.

[0093] For example, in one embodiment, the processor compares the horizontal deformation rate P1 with a preset horizontal deformation rate P1′, and compares the vertical deformation rate P2 with a preset vertical deformation rate P2′. Only when the horizontal deformation rate P1 is not greater than the preset horizontal deformation rate P1′, and the vertical deformation rate P2 is not greater than the preset vertical deformation rate P2′, does the processor give an evaluation result that the brush head's service life meets the standard. Otherwise, the processor determines that the brush head's service life does not meet the standard.

[0094] Specifically, taking an initial bristle size of 2cm and a second bristle size of 1cm before testing, with a preset horizontal deformation rate P1′ and a preset vertical deformation rate P2′ both of 15%, if the initial bristle size and the second bristle size after the preset washing time are found to be 2.2cm and 0.8cm respectively, then the corresponding horizontal deformation rate P1 is 10% and the vertical deformation rate P2 is 20%. Therefore, P1 < P1′, P2 > P2′, and the brush head's lifespan is substandard. If the initial bristle size and the second bristle size after the preset washing time are found to be 2.2cm and 0.9cm respectively, then the corresponding horizontal deformation rate P1 is 10% and the vertical deformation rate P2 is 10%. Therefore, P1 < P1′, P2 < P2′, and the brush head's lifespan meets the standard.

[0095] In another embodiment, the larger of the horizontal deformation rate P1 and the vertical deformation rate P2 is compared with a preset deformation rate P3. When the larger of the horizontal deformation rate P1 and the vertical deformation rate P2 is not greater than the preset deformation rate P3, the processor gives an evaluation result that the service life of the brush head meets the standard; otherwise, the processor determines that the service life of the brush head does not meet the standard.

[0096] Specifically, taking an initial bristle size of 2cm and a second bristle size of 1cm before testing, and a preset deformation rate P3 of 15%, if the initial bristle size and the second bristle size after the preset washing time are found to be 2.2cm and 0.8cm respectively, then the corresponding horizontal deformation rate P1 is 10%, and the vertical deformation rate P2 is 20%, where P2 > P1. Therefore, the vertical deformation rate P2 is compared with the preset deformation rate P3. Since P2 > P3, the brush head's lifespan is not up to standard. If the initial bristle size and the second bristle size after the preset washing time are found to be 2.2cm and 0.9cm respectively, then the corresponding horizontal deformation rate P1 is 10%, and the vertical deformation rate P2 is 10%, where P1 = P2. Therefore, either the horizontal deformation rate P1 or the vertical deformation rate P2 can be compared with the preset deformation rate P3. Since P1 = P2 < P3, the brush head's lifespan is up to standard.

[0097] Please see Figure 1 and Figure 2 In one embodiment, the simulated container 210 and the clamping device 300 are spaced apart in the first direction X, and the simulated container 210 has an opening 213 on the side facing the clamping device 300. After the toothbrush is clamped and fixed by the clamping device 300, the brush head extends into the simulated container 210 through the opening 213; the first direction X is the length direction of the toothbrush after it is clamped.

[0098] By arranging the simulation container 210 and the clamping device 300 at intervals along the first direction X, the action of a user holding one end of the toothbrush along its length and having the brush head at the other end contact the teeth in an actual brushing scenario is simulated. By providing an opening 213 on the side of the simulation container 210 facing the clamping device 300, the brush head can extend into the simulation container 210 through the opening 213 after the toothbrush is clamped and fixed by the clamping device 300, thereby enabling the brushing of the dental model mounted on the mounting platform 211.

[0099] Understandably, in actual brushing scenarios, users also use toothpaste to clean their teeth. The microparticles in toothpaste enhance friction efficiency, helping to remove stains. Additionally, the foam produced by toothpaste helps disperse and rinse loose plaque from teeth. However, the microparticles in toothpaste may accelerate the wear and tear on the bristles, and soaking in toothpaste water may also affect the degree of bristle deformation.

[0100] Therefore, in one embodiment, the simulation container 210 includes a water tank 212 and a spray module 214. A mounting platform 211 is disposed within the water tank 212, and the spray module 214 is disposed within the water tank 212, including a nozzle 2141 facing the mounting platform 211. The nozzle 2141 is used to spray toothpaste solution onto the dental mold. During the test, toothpaste solution is sprayed onto the dental mold through the nozzle 2141 to simulate the actual brushing scenario where a user uses toothpaste to clean their teeth, thereby improving the realism of the test and the accuracy of the test results.

[0101] Furthermore, the bottom of the water tank 212 is provided with a drain outlet, and the spray module 214 also includes a drain valve 2142 and a water pump 2143: the drain valve 2142 is located at the drain outlet; the water pump 2143 is connected to the drain valve 2142 and the spray head 2141 respectively through water pipes.

[0102] By installing a drain valve 2142 at the drain outlet, and connecting a water pump 2143 to both the drain valve 2142 and the nozzle 2141 via a water pipe, the sprayed toothpaste solution can be discharged from the drain outlet and then pumped back to the nozzle 2141 by the water pump 2143, achieving continuous spraying of the dental mold. This avoids the accumulation of toothpaste solution in the water tank 212, which could affect the brush head's cleaning of the dental mold; it also enables the recycling of toothpaste solution, saves on the installation of a water tank and drainage device, and reduces testing costs.

[0103] Optionally, in one embodiment, the drain outlet is located on the side of the water tank 212 away from the opening 213. That is, by placing the drain outlet on the side away from the clamping device 300, the drainage path avoids the reciprocating motion area of ​​the brush head. The liquid does not need to pass through the contact area between the brush head and the dental mold when discharged, reducing splashing caused by mechanical agitation. Simultaneously, the height of the portion of the water tank 212 with the drain outlet in the vertical direction (i.e., the third direction Z) can be set lower than the height of other portions, allowing gravity to guide the toothpaste liquid in the water tank 212 to flow naturally to the drain outlet.

[0104] Specifically, the water tank 212 includes a base 2121 and a detachable baffle 2122 mounted on the base 2121. The upper surface of the base 2121 is recessed downwards to form a water collection tank 212. The baffle 2122 is installed around the base 2121. The side of the base 2121 adjacent to the clamping device 300 does not have the baffle 2122, or the height of the baffle 2122 on that side is lower than the baffles 2122 on the other sides, thus forming the aforementioned opening 213. By installing the baffle 2122 around the base 2121, the sprayed toothpaste water is prevented from splashing out of the equipment and polluting the environment during testing. The baffle 2122 is detachably mounted on the base 2121, allowing for convenient cleaning of both the base 2121 and the baffle 2122 after testing. The enclosure panel 2122 can be detachably installed on the base 2121 by means including but not limited to snap-fit, magnetic connection, or bolt connection. The material of the enclosure panel 2122 includes but is not limited to polycarbonate, polystyrene, or acrylic. The enclosure panel 2122 has a certain degree of transparency to facilitate observation of the brush head's cleaning of the dental mold during testing.

[0105] Please see Figure 1 and Figure 3 In one embodiment, the environmental simulation device 200 further includes a horizontal moving platform 220 and a lifting platform 230; the horizontal moving platform 220 is mounted on the workbench 100; the lifting platform 230 is mounted on the horizontal moving platform 220; the simulation container 210 is mounted on the lifting platform 230, the horizontal moving platform 220 is used to adjust the horizontal position of the simulation container 210 so that the dental mold is aligned with the brush head; the lifting platform 230 is used to adjust the vertical position of the simulation container 210 so as to adjust the pressure applied by the brush head to the dental mold.

[0106] It is understandable that, due to the change in the clamping position of the clamping device 300 when clamping the toothbrush, or when the toothbrush testing device 10 tests toothbrushes of different lengths, the position of the brush head placed in the simulation container 210 after the toothbrush is clamped by the clamping device 300 will also change accordingly. It is necessary to calibrate the position of the tooth mold and the brush head to ensure that the brush head abuts against the tooth mold during the test.

[0107] The horizontal moving platform 220 can move horizontally relative to the worktable 100. The simulation container 210 is mounted on the horizontal moving platform 220 via the lifting platform 230. The horizontal moving platform 220 moves horizontally, causing the simulation container 210 to move horizontally as well, thereby adjusting the horizontal coordinates of the tooth mold inside the simulation container 210. Ultimately, this adjustment allows the tooth mold to be positioned directly below the brush head, thus aligning the tooth mold and the brush head. The lifting platform 230 can also move vertically relative to the worktable 100. The simulation container 210 is mounted on the lifting platform 230. The lifting platform 230 moves vertically (i.e., the third direction Z) and causes the simulation container 210 to move vertically, thereby adjusting the vertical coordinates of the tooth mold inside the simulation container 210. Ultimately, this adjustment allows the tooth mold to abut against the bristle tufts on the brush head. With the tooth mold against the brush head, if the lifting platform 230 continues to move the tooth mold toward the brush head, the bristle tufts will bend and deform under the pressure of the tooth mold, and correspondingly, the pressure applied by the brush head to the tooth mold will also increase.

[0108] Specifically, in one embodiment, the lifting platform 230 includes a first platform 231 and a second platform 232 arranged opposite each other in a vertical direction (i.e., a third direction Z), and two hinge components connecting the first platform 231 and the second platform 232. The two hinge components are spaced apart in a first direction X or a second direction Y. The hinge components include two support rods 233 and a knob. The two ends of the support rods 233 are respectively connected to the first platform 231 and the second platform 232, and the two support rods 233 are cross-hinged. The knob is located at the cross-hinged position of the two support rods 233. The knob can adjust the distance between the first platform 231 and the second platform 232 by adjusting the included angle formed between the two support rods 233. The first platform 231 is connected to the horizontal moving platform 220, and the second platform 232 is used to install the simulation container 210. When the first platform 231 is fixed, the distance between the second platform 232 and the first platform 231 is reduced, which means that the vertical height of the simulation container 210 is reduced; when the distance between the second platform 232 and the first platform 231 is increased, the vertical height of the simulation container 210 is increased.

[0109] Understandably, in actual brushing scenarios, users apply pressure to their teeth with a toothbrush. If the pressure is too high, it will accelerate the wear and deformation of the bristles and may damage the gum tissue. If the pressure is too low, it will affect the oral cleaning effect of the brushing process and will not be able to effectively clean the soft plaque and newly formed biofilm on the tooth surface.

[0110] Therefore, in one embodiment, the environmental simulation device 200 further includes a pressure sensor; the mounting platform 211 is provided with a first mounting groove 2111 and a second mounting groove 2112, the second mounting groove 2112 is provided on the bottom wall of the first mounting groove 2111, and the first mounting groove 2111 is used to place the dental mold; the pressure sensor is installed in the second mounting groove 2112 and is used to detect the pressure applied by the brush head to the dental mold.

[0111] A pressure sensor is placed at the bottom of the dental mold to detect the pressure applied to the dental mold by the brush head. Based on the sensor's readings, the pressure applied by the brush head is adjusted to approximate the pressure experienced by teeth during actual brushing. If the pressure sensor detects excessive pressure, the lifting platform 230 moves the dental mold away from the brush head by an appropriate distance; conversely, if the pressure sensor detects insufficient pressure, the lifting platform 230 moves the dental mold closer to the brush head by an appropriate distance.

[0112] Understandably, in actual brushing scenarios, users can manually adjust the position of the brush head to thoroughly clean the outer, inner, and occlusal surfaces of the teeth. Furthermore, the degree of wear and deformation of the bristles varies when brushing different types of tooth surfaces.

[0113] To simulate the comprehensive brushing of different tooth surface types by the brush head in a real brushing scenario, in one embodiment, the tooth mold includes multiple tooth mold units arranged continuously in the direction of the reciprocating movement of the clamping device 300. The tooth surface types of the multiple tooth mold units facing the brush head include at least the inner surface of the canine, the outer surface of the canine, and the occlusal surface of the molar.

[0114] By configuring the dental molds as multiple dental mold units arranged continuously in the direction of the reciprocating movement of the clamping device 300, the brush head can sequentially clean multiple dental mold units when the clamping device 300 drives the toothbrush to reciprocate. Furthermore, by configuring the tooth surface types of the multiple dental mold units facing the brush head to include at least the inner surface of the canines, the outer surface of the canines, and the occlusal surface of the molars, the brush head can achieve comprehensive cleaning of different tooth surface types when it reciprocates in one direction, more closely resembling a real-world brushing scenario.

[0115] Please see Figure 1 and Figure 4In one embodiment, the workbench 100 is provided with a slide rail 110 extending along a first direction X. The clamping device 300 includes a slide table 310, a clamping assembly 320, and a fixing assembly 330. The slide table 310 is slidably connected to the slide rail 110. The clamping assembly 320 is disposed on the slide table 310 and is used to clamp and fix the toothbrush. The fixing assembly 330 includes a fixing post 331 and a cantilever 332. The fixing post 331 is disposed on the slide table 310. One end of the cantilever 332 is connected to the fixing post 331, and the other end extends above the mounting platform 211. During testing, the cantilever 332 presses against the brush head, and the upper limit of the brush head in the vertical direction (i.e., the third direction Z) is located between the tooth mold and the cantilever 332.

[0116] The cantilever 332 presses against the brush head, ensuring that the brush head remains confined between the dental mold and the cantilever 332 during the test, thus maintaining a stable pressure value applied by the brush head to the dental mold. This prevents the brush head from wobbling vertically during the brushing process due to changes in the tooth surface type of the dental mold unit it contacts or changes in the moving speed, which could cause significant variations in the pressure applied by the brush head to the dental mold and affect the accuracy of the final test results.

[0117] Optionally, the clamping assembly 320 includes a plurality of clamps 321 spaced apart in the first direction X. Each clamp 321 includes two clamping arms 3211 spaced apart in the second direction Y. One clamping arm 3211 can move toward or away from the other clamping arm 3211, and the toothbrush can be clamped between the two clamping arms 3211. The second direction Y is perpendicular to the first direction X.

[0118] It is understandable that the more clamps 321 are spaced apart in the first direction X, the more stable the clamping and fixing effect of the clamping assembly 320 on the toothbrush will be, but the corresponding equipment cost will be higher, and the steps of clamping and disassembling the toothbrush will be more cumbersome. Therefore, optionally, in one embodiment, the number of clamps 321 is two or three.

[0119] By configuring the clamp 321 to include two clamping arms 3211 spaced apart in the second direction Y, wherein one clamping arm 3211 can move toward or away from the other clamping arm 3211, when the clamp 321 clamps the toothbrush, the toothbrush is placed between the two clamping arms 3211, and one clamping arm 3211 is moved toward the other clamping arm 3211 to reduce the distance between the two clamping arms 3211, thereby clamping and fixing the toothbrush between the two clamping arms 3211. Correspondingly, when removing the toothbrush, one clamping arm 3211 is moved away from the other clamping arm 3211 to release the clamping state of the clamping arm 3211 on the toothbrush. By adjusting the distance between the two clamping arms 3211, the clamp 321 can clamp toothbrushes of different sizes, improving the applicability of the toothbrush testing device 10.

[0120] Specifically, the clamp 321 also includes a clamping column 3212 and a clamping beam 3213. The clamping column 3212 is disposed on the slide table 310 and extends vertically. The clamping beam 3213 is connected to the clamping column 3212 and extends along the second direction Y. Two clamping arms 3211 are disposed on the clamping beam 3213. One clamping arm 3211 can move along the clamping beam 3213 toward or away from the other clamping arm 3211. The clamping beam 3213 plays a role in fixing and guiding the clamping arm 3211.

[0121] Please see Figure 1 In one embodiment, the drive device 400 is located on the side of the clamping device 300 facing away from the environmental simulation device 200, and includes a motor, a crank assembly 410 and a connecting rod 420; the motor is mounted on the worktable 100; the motor drives the crank assembly 410 to rotate the crank assembly 410 about the vertical direction; one end of the connecting rod 420 is hinged to the crank assembly 410 and the other end is hinged to the clamping device 300; the connecting rod 420 drives the clamping device 300 to reciprocate in the first direction X through the rotation of the crank assembly 410.

[0122] Understandably, the connection point between the crank assembly 410 and the connecting rod 420 is considered the first moving point, and the connection point between the connecting rod 420 and the clamping device 300 is considered the second moving point. When the electric drive drives the crank assembly 410 to rotate vertically, the trajectory of the first moving point on the horizontal plane is a circle centered on the rotation center, and the trajectory of the second moving point on the horizontal plane is a line segment in the first direction X. During the process of the first moving point moving from a position close to the clamping device 300 to a position far from the clamping device 300, the second moving point moves towards the rotation center; during the process of the first moving point moving from a position far from the clamping device 300 to a position close to the clamping device 300, the second moving point moves away from the rotation center; after the first moving point rotates one revolution, the second moving point achieves one reciprocating movement in the first direction X. That is, after the crank assembly 410 rotates one revolution, it drives the clamping device 300 to achieve one reciprocating movement.

[0123] Optionally, in one embodiment, the toothbrush testing device 10 further includes a control device, which is located on the workbench 100 and electrically connected to the motor. The control device is used to control the motor's on / off state and rotation speed.

[0124] The toothbrush testing equipment 10 is started and stopped by controlling the motor to turn it on and off. The motor speed is controlled by the control device to control the frequency of the toothbrush's brushing action during the test, so that the brush head's brushing frequency on the tooth mold is close to the brush head's brushing frequency on teeth in actual brushing scenarios, avoiding the brush head's brushing frequency on the tooth mold being too high or too low, which would affect the accuracy of the test results.

[0125] Furthermore, when the toothbrush testing device 10 also includes a spray module 214, the control device is also used to control the opening and closing of the water pump 2143 and the drain valve 2142, so that the toothpaste water sprayed onto the tooth mold can be controlled by the control device during the test.

[0126] In one embodiment, the toothbrush testing device 10 further includes a display device 500 disposed on the workbench 100. The display device 500 is communicatively connected to the testing device and is used to display the testing results.

[0127] After the testing device calculates the test data, it can send the data to the display device 500, which displays the data for easy viewing by staff to obtain the test results intuitively. When the testing device has an evaluation function to determine whether the brush head's service life meets the standard, the display device 500 can display not only the deformation rate of the bristle tufts but also the result of whether the brush head's service life meets the standard, or select one of these options to display.

[0128] Optionally, in one embodiment, the display device 500 is communicatively connected to the control device, and the display device 500 is used to display the motor's running time and speed. Displaying the motor's running time via the display device 500 facilitates the staff's monitoring of the test progress and planning of subsequent testing work.

[0129] Optionally, in one embodiment, the display device 500 is communicatively connected to the control device, and the display device 500 is configured to send a control motor signal to the control device via touch. That is, the operator can touch the display device 500 to set the running time of the toothbrush testing device 10 and the motor speed, etc. Setting the running time to a preset brushing duration allows the toothbrush testing device 10 to automatically stop and provide test results after the brush head has brushed the tooth mold for the preset duration, thus improving the ease of operation of the toothbrush testing device 10.

[0130] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0131] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A toothbrush testing device for testing the lifespan of a toothbrush head, characterized in that, The brush head includes a brush head body and bristle tufts disposed on the brush head body; the toothbrush testing device includes: Workbench; An environmental simulation device includes a simulation container mounted on the workbench, the simulation container having a mounting platform for mounting a dental mold; A clamping device is slidably mounted on the worktable. The clamping device is used to clamp and fix the toothbrush and to make the bristle tuft abut against the tooth mold. A driving device, mounted on the worktable and connected to the clamping device, is used to drive the clamping device to reciprocate, thereby realizing the brushing action of the brush head on the dental mold; and A detection device is used to detect the degree of deformation of the bristle clusters after a preset washing time.

2. The toothbrush testing device as described in claim 1, characterized in that, The detection device includes: The imaging module is used to capture detection images containing the brush head before and after a preset washing time; and The processor is communicatively connected to the imaging module to acquire the detection image. The processor is used to identify the size of the bristle cluster before and after the test based on the detection image, and to calculate the deformation rate of the bristle cluster.

3. The toothbrush testing device as described in claim 2, characterized in that, The deformation rate includes horizontal deformation rate and vertical deformation rate; The horizontal deformation rate is the degree of deformation of the first dimension of the bristle cluster; the vertical deformation rate is the degree of deformation of the second dimension of the bristle cluster. Wherein, the first dimension is the maximum length of the bristle tuft in the length direction of the toothbrush, and the second dimension is the maximum length of the bristle tuft in the vertical direction of the brush head body.

4. The toothbrush testing device as described in claim 3, characterized in that, The processor is further configured to compare the larger of the horizontal deformation rate and the vertical deformation rate with a preset deformation rate to determine whether the service life of the brush head meets the standard; or, The processor is also used to compare the horizontal deformation rate with a preset horizontal deformation rate and the vertical deformation rate with a preset vertical deformation rate to determine whether the service life of the brush head meets the standard.

5. The toothbrush testing device as described in claim 1, characterized in that, The dental mold includes a plurality of dental mold units arranged continuously in the direction of reciprocating movement of the clamping device, and the tooth surface types of the plurality of dental mold units facing the brush head include at least the inner surface of canines, the outer surface of canines, and the occlusal surface of molars.

6. The toothbrush testing device according to any one of claims 1 to 5, characterized in that, The simulated container and the clamping device are spaced apart in a first direction, and the simulated container has an opening on the side facing the clamping device. After the toothbrush is clamped and fixed by the clamping device, the brush head extends into the simulated container through the opening; the first direction is the length direction of the toothbrush after it is clamped.

7. The toothbrush testing device as described in claim 6, characterized in that, The simulated container includes a water tank and a spray module. The mounting platform is located inside the water tank, and the spray module is located in the water tank and includes a nozzle facing the mounting platform. The nozzle is used to spray toothpaste water onto the dental mold.

8. The toothbrush testing device as described in claim 7, characterized in that, The bottom of the water tank is provided with a drain outlet, and the spray module also includes: A drain valve is provided at the drain outlet; and A water pump is connected to the drain valve and the nozzle via water pipes.

9. The toothbrush testing device as described in claim 8, characterized in that, The drain outlet is located on the side of the water tank away from the opening.

10. The toothbrush testing device as described in claim 6, characterized in that, The environmental simulation device also includes: A horizontal moving platform, installed on the workbench; and A lifting platform is installed on the horizontal moving platform; The simulation container is mounted on the lifting platform. The horizontal moving platform is used to adjust the horizontal position of the simulation container so that the dental mold is aligned with the brush head. The lifting platform is used to adjust the vertical position of the simulation container so as to adjust the pressure applied by the brush head to the dental mold.

11. The toothbrush testing device as described in claim 10, characterized in that, The mounting platform is provided with a first mounting groove and a second mounting groove, the second mounting groove being located on the bottom wall of the first mounting groove, and the first mounting groove being used to place the dental mold. The environmental simulation device also includes: A pressure sensor, installed in the second mounting slot, is used to detect the pressure applied by the brush head to the dental mold.

12. The toothbrush testing device as described in claim 6, characterized in that, The worktable is provided with a slide rail extending along a first direction, and the clamping device includes: The slide table is slidably connected to the slide rail; A clamping assembly, disposed on the slide, is used to clamp and fix the toothbrush; and A fixing assembly includes a fixing column and a cantilever, the fixing column being disposed on the slide table, one end of the cantilever being connected to the fixing column, and the other end extending above the mounting platform; During testing, the cantilever presses against the brush head, with the brush head positioned vertically between the dental mold and the cantilever.

13. The toothbrush testing device as described in claim 12, characterized in that, The clamping assembly includes a plurality of clamps spaced apart in the first direction, and the clamps include two clamping arms spaced apart in the second direction, wherein one clamping arm is movable toward or away from the other clamping arm, and the toothbrush is clamped between the two clamping arms; the second direction is perpendicular to the first direction.

14. The toothbrush testing device as described in claim 6, characterized in that, The driving device is located on the side of the clamping device facing away from the environmental simulation device, and includes: The motor is mounted on the worktable; A crank assembly, wherein the motor drives the crank assembly to rotate the crank assembly about a vertical direction; and A connecting rod is hinged at one end to the crank assembly and at the other end to the clamping device; the connecting rod drives the clamping device to reciprocate in the first direction through the rotation of the crank assembly.

15. The toothbrush testing device as described in claim 14, characterized in that, Also includes: A control device is provided on the workbench, and the control device is electrically connected to the motor. The control device is used to control the motor's on / off state and rotation speed.

16. The toothbrush testing device as described in claim 15, characterized in that, Also includes: A display device is disposed on the workbench, and the display device is communicatively connected to the detection device. The display device is used to display the detection results. And / or, The display device is communicatively connected to the control device, and the display device is used to display the running time and speed of the motor; and / or, The display device is communicatively connected to the control device, and the display device is configured to send signals to the control device to control the motor via touch.

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