A test device for a dental floss pick

Abstract

This application discloses a testing device for dental floss picks, including a base, a testing base, a clamp, a lifting seat, and a moving module. The testing base is fixed to the end face of the base, the lifting seat and the moving module are disposed on the base, the clamp is mounted on the lifting seat, and the lifting seat and the moving module are connected. The testing base includes a first sliding seat and a second sliding seat, each with a dental mold fixed on it. The two dental molds are arranged opposite each other and form a tooth gap. The clamp has a clamping groove. The lifting seat drives the clamp to move vertically, so that the floss end of the dental floss pick is positioned and enters the tooth gap with contact pressure, contacting at least one dental mold surface. The moving module drives the dental floss pick to perform linear reciprocating motion in the horizontal direction, so that the floss located in the tooth gap performs reciprocating frictional motion on the contact surface of the dental mold. The testing device for dental floss picks provided by this application can detect the multi-directional dynamic friction and wear of dental floss during use, effectively improving the accuracy of the detection.

Description

Technical Field

[0001] This application relates to the field of dental floss sticks, and more particularly to a testing device for dental floss sticks. Background Technology

[0002] Dental floss picks are a commonly used oral care tool. Through the floss structure supported by the pick, they effectively remove food debris, plaque, and soft deposits between teeth, significantly reducing the feeling of food impaction and improving oral hygiene. During industrial production, the core component of dental floss picks—the floss itself—requires multi-dimensional mechanical performance testing using specialized equipment to ensure the product meets quality requirements.

[0003] Current industry-standard testing methods primarily focus on collecting static mechanical parameters of dental floss, including basic indicators such as tensile strength testing and fracture load detection. However, in practical applications, dental floss requires multi-directional reciprocating friction cleaning between teeth to remove food debris, and its abrasion resistance directly affects product lifespan and the sustainability of its cleaning effect. While existing technologies include methods for assessing material durability through cyclic tensile testing, this testing mode differs from the multi-directional friction and wear between dental floss and tooth surfaces in real-world usage scenarios. It cannot accurately reflect the performance of dental floss materials under dynamic friction conditions, resulting in a lack of dimensions in product quality assessment and making it difficult to comprehensively evaluate the overall performance of dental floss in actual use. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned technical problems and provide a testing device for dental floss sticks. The testing device of this application can accurately simulate the multi-directional dynamic friction and wear between dental floss and tooth surface in the actual oral environment, effectively improving the accuracy of the test.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A dental floss pick testing device includes a base, a testing base, a clamp, a lifting seat, and a moving module. The testing base is fixed to the end face of the base. The lifting seat and the moving module are disposed on one side of the base. The clamp is mounted on the lifting seat, and the lifting seat is connected to the moving module. The testing base includes a first sliding seat and a second sliding seat. A dental mold is fixed on each of the first and second sliding seats. The two dental molds are arranged opposite each other and form a tooth gap. The relative distance between the first and second sliding seats is adjusted to adjust the width of the tooth gap. The clamp has a clamping groove for holding the handle end of the dental floss pick. The lifting seat drives the clamp to move vertically so that the floss end of the dental floss pick is positioned and enters the tooth gap with contact pressure, and contacts at least one dental mold surface. The moving module drives the lifting seat to move horizontally so that the clamp holds the dental floss pick and performs linear reciprocating motion in the horizontal direction, causing the floss located in the tooth gap to perform reciprocating frictional motion on the contact surface of the dental mold.

[0007] In this application, a dental model is fixed on a first sliding seat and a second sliding seat with adjustable spacing to form an adjustable tooth gap. Combined with a lifting seat driving a clamp to apply a load in the vertical direction, the dental floss stick is clamped so that the floss end enters the tooth gap and contacts the dental model surface. The moving module drives the dental floss stick to perform linear reciprocating motion in the horizontal direction, thereby accurately simulating the multi-directional dynamic friction and wear between the dental floss and the tooth surface in the actual oral environment. This effectively overcomes the shortcomings of existing technologies that rely solely on static mechanical testing and cannot reflect real-world usage scenarios. It achieves a comprehensive and reliable evaluation of the wear resistance, fatigue life, and cleaning effect of dental floss, making the testing of dental floss more accurate and reliable, and providing a multi-dimensional scientific basis for product quality control.

[0008] In one embodiment, the detection base further includes a guide block, and the bottom of the first sliding seat and the second sliding seat are provided with guide grooves adapted to the guide block. The guide grooves are connected to the guide block, so that the first sliding seat and the second sliding seat can slide along the guide block to adjust their positions.

[0009] In one embodiment, the guide block surface is provided with helical teeth, and both the first sliding seat and the second sliding seat are equipped with sliding shafts. The inner end of the sliding shaft is adapted to the helical teeth of the guide block. By rotating the sliding shaft, the first sliding seat and the second sliding seat can be moved horizontally along the guide block.

[0010] In one embodiment, the dental mold is fixed to the upper end face of the first sliding seat and the second sliding seat near their adjacent edges by threaded connection.

[0011] In one embodiment, the upper surface of the base includes a movable plate and a top plate, and the detection base is fixed to the top plate; the movable plate has an installation opening, the lifting seat passes through the installation opening and is connected to the movable plate on one side, and when the moving module drives the lifting seat to move, the movable plate moves accordingly.

[0012] In one embodiment, the movable plate is fitted with a connector that is fixed to one side of the lifting seat, and the connector is L-shaped.

[0013] In one embodiment, the lifting seat is provided with a lifting guide plate; the clamp includes a bracket and a clamping member, the bracket is fixed to the lifting guide plate and moves vertically with the lifting guide plate, and the clamping member is equipped with a movable clamping block, and the spacing of the clamping slots is adjusted by adjusting the position of the clamping block.

[0014] In one embodiment, a T-shaped calibration plate is fixed to at least one side of the lifting guide plate, and a plurality of calibration blocks are fixed at intervals in the vertical direction on the lifting seat. The calibration blocks are provided with a longitudinally penetrating calibration groove in the middle. When the calibration plate moves up and down with the lifting guide plate, it passes through the calibration groove to calibrate the offset state of the lifting guide plate.

[0015] In one embodiment, the base has a support frame installed on its outer side, the moving module is fixed to the support frame, the moving module includes a drive motor, a guide slide and a slider, the slider is installed on the guide slide and moves horizontally along the guide slide under the drive of the drive motor, and the inner side of the slider is connected and fixed to the lifting seat to drive the lifting seat to move.

[0016] In one embodiment, the base has a partition plate on the outer side of the lifting seat, and the partition plate has a connection interface. The slider is connected to the lifting seat through the connection interface. The guide slide is provided with position sensors at both ends corresponding to the connection interface, and the slider is provided with corresponding sensing elements at both ends of the slider edge. When the slider moves, the sensing elements and the position sensors are triggered to detect and control the stroke of the slider. Attached Figure Description

[0017] Figure 1 An overall structural diagram of the testing device for dental floss sticks provided by this utility model;

[0018] Figure 2 A schematic diagram of the structure of the mobile module provided by this utility model;

[0019] Figure 3 A schematic diagram of the structure of the detection base provided by this utility model;

[0020] Figure 4 This is an exploded view of the structure of the detection base provided by this utility model;

[0021] Figure 5 This is a structural schematic diagram of the lifting seat and clamp provided by this utility model;

[0022] Figure 6 This is a schematic diagram of the installation state structure of the mobile module and the lifting seat provided by this utility model. Detailed Implementation

[0023] This application provides a testing device for dental floss picks, which solves the technical problem that existing testing devices for dental floss picks cannot accurately reflect the performance of dental floss materials under dynamic friction conditions, resulting in a lack of product quality assessment dimensions and making it difficult to comprehensively evaluate the overall performance of dental floss in actual use.

[0024] To make the inventive objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Please see Figures 1 to 6 This application provides a testing device for dental floss picks, including a base 100, a testing base 200, a clamp 300, a lifting seat 400, and a moving module 500. The testing base 200 is fixed to the end face of the base 100, the lifting seat 400 and the moving module 500 are disposed on one side of the base 100, the clamp 300 is mounted on the lifting seat 400, and the lifting seat 400 is connected to the moving module 500. The testing base 200 includes a first sliding seat 210 and a second sliding seat 220. Dental molds 600 are fixed on both the first sliding seat 210 and the second sliding seat 220. The two dental molds 600 are arranged opposite each other to form a tooth gap 700. The relative distance between the first sliding seat 210 and the second sliding seat 220 is adjusted to adjust the width of the tooth gap 700. The clamp 300 has a clamping groove 310 for clamping the handle end of the dental floss stick 800. The lifting seat 400 drives the clamp 300 to move vertically so that the dental floss end of the dental floss stick 800 is positioned and enters the tooth gap 700 with contact pressure, and contacts at least one dental mold 600 surface. The moving module 500 drives the lifting seat 400 to move horizontally so that the clamp 300 clamps the stick 800 in a linear reciprocating motion in the horizontal direction, so that the dental floss located in the tooth gap 700 reciprocates and rubs against the contact surface of the dental mold 600.

[0026] Specifically, a detection base 200 is fixed to the upper surface of the base 100. The detection base 200 includes a first sliding seat 210 and a second sliding seat 220, and a dental model 600 simulating a tooth is fixed on both the first sliding seat 210 and the second sliding seat 220. The two dental models 600 are arranged opposite each other, and the distance between them is adjusted by adjusting the positions of the first sliding seat 210 and the second sliding seat 220, thereby forming a tooth gap 700 simulating a tooth gap. A lifting seat 400 and a moving module 500 are installed on the base 100. A clamp 300 is fixed on the lifting seat 400. A clamping groove 310 is provided on the clamp 300 at a position corresponding to the detection base 200 for fixing the handle end of the dental floss pick 800. Under the drive of the lifting seat 400, the clamp 300 clamps the dental floss pick 800 so that its dental floss end has contact pressure. The floss is forcefully inserted into the interdental space 700, and the end of the floss contacts at least one dental mold 600 surface upon entry to simulate the operation of floss getting stuck in the interdental space during use, making the detection more accurate and efficient. The moving module 500 located on one side of the base 100 is connected to the lifting seat 400 and can drive the lifting seat 400 to move horizontally, thereby indirectly driving the clamp 300 to move. This allows the floss of the floss stick 800 to perform linear reciprocating motion in the horizontal direction within the interdental space 700. Combined with the vertical movement of the lifting seat 400, the floss can enter different heights of the interdental space 700 for reciprocating motion. Thus, the floss can simulate the multi-directional dynamic friction and wear between the floss and the tooth surface in the actual oral environment. By performing multi-dimensional detection, the accuracy of the detection results is improved, making the detection structure effective and reliable.

[0027] Furthermore, the detection base 200 also includes a guide block 230. The bottom of the first sliding seat 210 and the second sliding seat 220 are provided with guide grooves 250 that are adapted to the guide block 230. The guide grooves 250 are connected to the guide block 230, so that the first sliding seat 210 and the second sliding seat 220 can slide along the guide block 230 to adjust their positions. The surface of the guide block 230 is provided with helical teeth, i.e., helical tooth blocks 231. Both the first sliding seat 210 and the second sliding seat 220 are equipped with sliding shafts 240. The inner end of the sliding shaft 240 is adapted to the helical teeth, i.e., helical tooth blocks 231, of the guide block 230. By rotating the sliding shaft 240, the first sliding seat 210 and the second sliding seat 220 can be moved horizontally along the guide block 230. The bottom of the detection base 200 is fixed to the upper end face of the base 100. The upper end face of the guide block 230 is inverted trapezoidal. The shape of the guide groove 250 is adapted to the guide block 230 and can be slidably installed on the guide block 230. Through the cooperation between the guide block 230 and the guide groove at the bottom of the sliding seat, the first sliding seat 210 and the second sliding seat 220 are ensured to slide smoothly along the predetermined trajectory, avoiding deviation when adjusting the tooth gap 700 width. A helical tooth block 231 is embedded in the middle of the guide block 230, so that the upper end face of the guide block 230 has helical teeth. A sliding shaft 240 is inserted into the middle of both the first sliding seat 210 and the second sliding seat 220. The diameters at both ends of 40 are larger than the diameter of the central circular shaft. The inner end is connected to the helical tooth block 231 and has teeth corresponding to the helical teeth. By rotating the corresponding sliding shaft 240, the first sliding seat 210 and the second sliding seat 220 can slide along the upper end face of the guide block 230 to adjust the gap. By using the meshing transmission between the helical tooth block 231 and the sliding shaft 240, the two sliding seats can be precisely adjusted. This can accurately simulate different tooth gap widths, enhance the coverage of the test scenario, and the first sliding seat 210 and the second sliding seat 220 are not easy to deviate. During the test, the tooth gap 700 is not easy to shift due to the movement of the dental floss, which increases the accuracy of the test.

[0028] Furthermore, the upper surfaces of the first sliding seat 210 and the second sliding seat 220 are each fixed with a tooth mold 600 via threaded connections near their adjacent edges. The first sliding seat 210 and the second sliding seat 220 are each fixed with a fixing post at their inner edges. The tooth mold 600 is directly fixed to the mounting post via threaded connections, simplifying installation and effectively simulating tooth gaps in real use. This ensures the rigid installation stability of the tooth mold 600 during reciprocating friction testing and facilitates quick replacement of tooth molds 600 with different tooth surface morphologies to expand the testing range.

[0029] Furthermore, the upper surface of the base 100 includes a movable plate 110 and a top plate 120, and the detection base 200 is fixed to the top plate 120; the movable plate 110 has an installation port 111, the lifting seat 400 passes through the installation port 111, and one side is connected to the movable plate 110 through a connector 130. When the moving module 500 drives the lifting seat 400 to move, the movable plate 110 moves accordingly. The movable plate 110 is connected and fixed to one side of the lifting seat 400 with a connector 130. The connector 130 is L-shaped. The top plate 120 is fixed to the base 100 and is used to install the load-bearing detection base 200. The movable plate 110 can movably cover the upper side of the base 100 and cooperates with the top plate 120 to cover the upper end surface of the base 100. The middle part of the movable plate 110 has an installation port 111 that connects to the inside of the base 100. The lifting seat 400 passes through the installation port 111 and is connected and fixed to the clamp 300. The movable plate 110 is fixed with an L-shaped connector 130 at the installation port 111 and is fixedly connected to the main body of the lifting seat 400. When the moving module 500 drives the lifting seat 400 to move horizontally, the movable plate 110 can move accordingly. Through the linkage design of the movable plate 110 and the lifting seat 400, the installation port 111 of the movable plate 110 only needs to be made with a size that matches the cross-section of the lifting seat 400. When the lifting seat 400 is in the initial position, the movable plate 110 completely covers the notch on the upper surface of the base 100, maintaining the structural continuity of the bearing surface of the base 100, avoiding the problem of rigidity weakening and stress concentration caused by opening a large through notch, ensuring the overall stability of the testing device, and ensuring the sealing of the upper surface of the base 100 to prevent foreign objects from accidentally entering the moving mechanism.

[0030] See Figure 5 The lifting seat 400 is provided with a lifting guide plate 410; the clamp 300 includes a bracket 320 and a clamping member 330. The bracket 320 is fixed to the lifting guide plate 410 and moves vertically with the lifting guide plate 410. The clamping member 330 is equipped with a movable clamping block 331. The spacing of the clamping slot 310 is adjusted by adjusting the position of the clamping block 331. The lifting base 400 has a guide rail plate 420 on the side near the detection base 200. The lifting guide plate 410 is sleeved on the inner side of the guide rail plate 420. The bracket 320 of the clamp 300 is fixedly connected to the end of the lifting guide plate 410 that extends out of the guide rail plate 420. When the lifting guide plate 410 slides vertically along the guide rail plate 420 under the drive of the driving device, the clamp 300 moves accordingly, thereby driving the dental floss end of the dental floss stick 800 into the tooth gap 700. The clamping member 330 is fixed to the end of the bracket 320. A movable clamping block 331 is installed at the bottom position to form an adjustable clamping groove 310, which can be adapted to handles of different specifications of dental floss sticks 800. The two side walls of the clamping groove 310 have serrated patterns to ensure clamping stability.

[0031] Furthermore, at least one side of the lifting guide plate 410 is fixed with a T-shaped calibration plate 430, and a number of calibration blocks 440 are fixed at intervals in the vertical direction on the lifting seat 400. The calibration block 440 has a longitudinally penetrating calibration groove 441 in the middle. When the calibration plate 430 moves up and down with the lifting guide plate 410, it passes through the calibration groove 441 to calibrate the offset state of the lifting guide plate 410. A calibration plate 430 is fixed to the lifting guide plate 410 near the main body of the lifting seat 400. The main body of the lifting seat 400 is a fixed end, and multiple calibration blocks 440 are arranged at certain intervals in the vertical direction. The through calibration grooves 441 formed in the middle of the calibration blocks 440 are in the same position. The T-shaped calibration plate 430 moves along with the lifting guide plate 410 during the lifting process. Its end passes through the calibration groove 441. Through the nesting and cooperation of the calibration plate 430 and the calibration groove 441, the vertical displacement trajectory of the lifting guide plate 410 is corrected in real time, eliminating the interference of lateral offset on the dental floss contact pressure and ensuring the axial accuracy of the applied load.

[0032] See Figure 6 Furthermore, a support frame 140 is installed on the outer side of the base 100, and the moving module 500 is fixed to the support frame 140. The moving module 500 includes a drive motor 510, a guide slide 520 and a slider 530. The slider 530 is installed on the guide slide 520 and moves horizontally along the guide slide 520 under the drive of the drive motor 510. The inner side of the slider 530 is connected and fixed to the lifting seat 400 to drive the lifting seat 400 to move. The base 100 has a partition plate 150 on the outer side of the lifting seat 400. The partition plate 150 has a connection interface 160, and the slider 530 is connected to the lifting seat 400 through the connection interface 160. One side of the base 100 forms a mounting cavity 170 for mounting the moving module 500 through the partition plate 150. The moving module 500 is connected to the lifting seat 400 through the connection interface 160 opened in the partition plate 150. The base 100 has a support frame 140 installed on the outer side of the mounting cavity 170. The guide slide 520 of the moving module 500 is fixed on the support frame 140. The drive motor 510 is fixed on one side of the guide slide 520 to drive the slider 530 mounted on the guide slide 520 to slide. The slider 530 is fixed to the main body of the lifting seat 400 on the inner side wall, thereby driving the lifting seat 400 to move horizontally; the structure is simple and the two parts cooperate to drive the dental floss pick 700 to reciprocate for detection; in this embodiment, the moving module 500 is externally placed by the support frame 140, which optimizes the spatial layout of the base 100; the linear drive structure of the guide slide 520 and the slider 530 ensures the straightness of the reciprocating motion path of the dental floss pick 800 and the controllability of the speed.

[0033] Furthermore, the guide slide 520 is equipped with position sensors 900 at both ends of the corresponding interface 160, and the slider 530 is equipped with sensing elements 910 at both ends of the edge. When the slider 530 moves, the sensing elements 910 and the position sensors 900 are triggered to detect and control the stroke of the slider 530. Position sensors 900 are installed on both ends of the upper surface of the guide slide 520 corresponding to the interface 160, and sensing elements 910 are installed on both ends of the slider 530. When the slider 530 slides, the sensing element 910 is triggered when it approaches the corresponding position sensor 900, thereby limiting the stroke of the slider 530. In this embodiment, the type of sensing element 910 can be set according to the sensing type of the position sensor 900, such as using a magnetic block. In addition to the two position sensors 900, a third position sensor 900 is also installed on the guide slide 520, which can be used to set the initial position or a specific position of the slider 530, increasing the application scenarios and facilitating detection. By using the stroke limit detection of the position sensor 900 and the sensing element 910, the slider 530 is prevented from overtraveling and impacting the equipment, while accurately counting the reciprocating friction cycles.

[0034] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A testing device for dental floss picks, characterized in that, The device includes a base, a detection base, a clamp, a lifting seat, and a moving module. The detection base is fixed to the end face of the base. The lifting seat and the moving module are disposed on one side of the base. The clamp is mounted on the lifting seat, and the lifting seat is connected to the moving module. The detection base includes a first sliding seat and a second sliding seat. Dental molds are fixed on both the first and second sliding seats. The two dental molds are arranged opposite each other to form a tooth gap. The relative distance between the first and second sliding seats is adjusted to adjust the width of the tooth gap. The clamp has a clamping groove for clamping the handle end of the dental floss pick. The lifting seat drives the clamp to move vertically so that the dental floss end of the dental floss pick is positioned and enters the tooth gap with contact pressure, and contacts at least one dental mold surface. The moving module drives the lifting seat to move horizontally so that the clamp clamps the dental floss pick in a linear reciprocating motion in the horizontal direction, causing the dental floss located in the tooth gap to reciprocate and rub against the contact surface of the dental mold.

2. The testing apparatus for dental floss sticks according to claim 1, characterized in that, The detection base also includes a guide block. The bottom of the first sliding seat and the second sliding seat is provided with a guide groove adapted to the guide block. The guide groove is connected to the guide block, so that the first sliding seat and the second sliding seat can slide along the guide block to adjust their positions.

3. The testing apparatus for dental floss sticks according to claim 2, characterized in that, The guide block surface is provided with helical teeth, and both the first sliding seat and the second sliding seat are equipped with sliding shafts. The inner end of the sliding shaft is adapted to the helical teeth of the guide block. By rotating the sliding shaft, the first sliding seat and the second sliding seat can be moved horizontally along the guide block.

4. The testing apparatus for dental floss sticks according to claim 1, characterized in that, The dental mold is fixed to the upper end face of the first sliding seat and the second sliding seat near their adjacent edges by threaded connection.

5. The testing apparatus for dental floss sticks according to claim 1, characterized in that, The upper surface of the base includes a movable plate and a top plate, and the detection base is fixed to the top plate; the movable plate has an installation opening, the lifting seat passes through the installation opening and is connected to the movable plate on one side, and when the moving module drives the lifting seat to move, the movable plate moves accordingly.

6. The testing apparatus for dental floss sticks according to claim 5, characterized in that, The movable plate is equipped with a connector that is fixed to one side of the lifting seat. The connector is L-shaped.

7. The testing apparatus for dental floss sticks according to claim 1, characterized in that, The lifting seat is provided with a lifting guide plate; the clamp includes a bracket and a clamping member. The bracket is fixed to the lifting guide plate and moves vertically with the lifting guide plate. The clamping member is equipped with a movable clamping block, and the spacing of the clamping slots can be adjusted by adjusting the position of the clamping block.

8. The testing apparatus for dental floss sticks according to claim 7, characterized in that, The lifting guide plate has a T-shaped calibration plate fixed on at least one side. Several calibration blocks are fixed at intervals in the vertical direction on the lifting base. The calibration block has a longitudinally penetrating calibration groove in the middle. When the calibration plate moves up and down with the lifting guide plate, it passes through the calibration groove to calibrate the offset state of the lifting guide plate.

9. The testing apparatus for dental floss sticks according to claim 1, characterized in that, The base has a support frame installed on the outer side. The moving module is fixed to the support frame. The moving module includes a drive motor, a guide slide, and a slider. The slider is installed on the guide slide and moves horizontally along the guide slide under the drive of the drive motor. The inner side of the slider is connected and fixed to the lifting seat to drive the lifting seat to move.

10. The testing apparatus for dental floss sticks according to claim 9, characterized in that, The base has a partition plate on the outer side of the lifting seat, and the partition plate has a connection interface. The slider is connected to the lifting seat through the connection interface. The guide slide is provided with position sensors at both ends corresponding to the connection interface. The slider is provided with sensing elements at both ends of the slider. When the slider moves, the sensing elements and the position sensors are triggered to detect and control the stroke of the slider.

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