Dental floss durability testing device and testing method thereof

Abstract

The invention discloses a dental floss durability testing device and a testing method thereof, and belongs to the technical field of dental floss testing. A dental floss durability testing device comprises a base and further comprises a first testing arm and a second testing arm which are arranged at the two ends of the base. The test sliding block is arranged on the first test arm, and the test sliding block is attached to one end, far away from the first hinge seat, of the second test arm; the top of the test slide block and the top of the second test arm are respectively provided with a first inclined plane. The top of the test slide block and the top of the second test arm are respectively provided with a second inclined plane. The driving frame is connected with the base, a clamping assembly is arranged on the driving frame in a lifting mode, a floss pick is fixed to the clamping assembly, and the clamping assembly drives the floss pick to ascend and descend; according to the invention, multiple test modes are integrated, including simulation of shuttling of the dental floss among slits between teeth and evaluation of the torsional strength and the tension resistance of the dental floss, so that researchers can comprehensively evaluate the durability of the dental floss, and different test requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of dental floss testing, and in particular to a dental floss durability testing device. Background Art

[0002] Dental floss is a product used with a toothbrush in daily oral care.

[0003] At present, there is a dental floss stick strength testing device with a patent publication number of CN218512171U. The design is ingenious. By adjusting the first adjusting bolt and the second adjusting bolt, the inclination angle and the supporting point of the dental floss stick can be controlled to perform different tests. The specifications of the weights can also be selected from a variety of models to meet various testing needs. The strength testing device is a semi-automatic equipment with very low cost, simple manual operation, and no special maintenance required.

[0004] In the process of testing the strength of the dental floss stick in the above-mentioned device, the connection between the weight and the dental floss stick is too simple, the weight is easy to shake and affect the test results, the operation of adding and replacing the weight is time-consuming, and the bearing capacity of the dental floss cannot be accurately confirmed by simply replacing the weight, and the test items are single. Therefore, a dental floss durability testing device is proposed herein. Summary of the invention

[0005] The present invention is to solve the problem that accurate test results cannot be obtained and the test items are single in the prior art, and proposes a dental floss durability test device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A dental floss durability testing device comprises a base, and also includes: a first test arm and a second test arm arranged at both ends of the base; a test slider arranged on the first test arm, the test slider being in contact with an end of the second test arm away from a first hinge seat; the tops of the test slider and the second test arm are both provided with a first inclined surface; the tops of the test slider and the second test arm are both provided with a second inclined surface; a driving frame connected to the base, a clamping assembly is arranged on the driving frame for lifting and lowering, a dental floss stick is fixed on the clamping assembly, and the clamping assembly drives the dental floss stick to rise and fall; during the lifting and lowering process of the dental floss stick, the dental floss is inserted between the first test arm and the second test arm through the first inclined surface and the second inclined surface to simulate the dental floss shuttling between teeth.

[0007] As a preferred embodiment of the present invention: the first test arm and the second test arm are both fixedly connected to the base, and the first test arm and the second test arm are both made of elastic metal.

[0008] As a preferred embodiment of the present invention: first hinged seats are fixedly installed at both ends of the base, the first test arm and the second test arm are rotatably connected to two groups of first hinged seats respectively, a tension spring is fixedly installed on the first test arm, and the end of the tension spring away from the first test arm is fixedly connected to the second test arm.

[0009] As a preferred embodiment of the present invention: the driving frame includes a second mounting plate fixedly connected to the base, a limiting rod is fixedly installed on the second mounting plate, a third mounting plate is fixedly installed on the top of the limiting rod, a first motor is fixedly installed on the third mounting plate, an eccentric wheel is fixedly installed on the output shaft of the first motor, a force detection component is rotatably connected to the eccentric wheel, and the force detection component is slidably arranged on the limiting rod.

[0010] As a preferred embodiment of the present invention: the force detection component includes: a fourth mounting plate slidably mounted on the limit rod, a second hinged seat fixedly mounted on the fourth mounting plate, and the second hinged seat is rotatably connected to the crank; a mounting column is fixedly mounted on the bottom of the fourth mounting plate, a second mounting frame is slidably mounted on the mounting column, and a first mounting frame is fixedly mounted on the bottom of the second mounting frame, and the clamping assembly is arranged on the first mounting frame; one end of the mounting column extending to the inside of the second mounting frame is fixedly mounted with a limit plate; a first annular pressure sensor is sleeved on the mounting column, and the upper and lower ends of the first annular pressure sensor respectively conflict with the limit plate and the top inner part of the second mounting frame; a second annular pressure sensor is arranged in the second mounting frame, and the two ends of the second annular pressure sensor conflict with the top of the first mounting frame and the bottom of the limit plate.

[0011] As a preferred embodiment of the present invention: the clamping assembly includes a second motor and a sliding rod fixedly mounted on a first mounting frame, two groups of symmetrically arranged clamping blocks are slidably connected to the sliding rod, a symmetrical threaded screw is rotatably mounted on the first mounting frame, the two groups of clamping blocks are respectively engaged with two groups of threads with opposite spiral directions on the symmetrical threaded screw, and the symmetrical threaded screw is fixedly connected to the output shaft of the second motor.

[0012] As a preferred embodiment of the present invention: the test slider is slidably connected to the horizontal arm of the first test arm, the vertical arm of the first test arm is slidably connected to a limit slider and fixedly connected to a first mounting plate, the limit slider is fixedly connectable to a driving arm, a pressing plate is fixedly installed on the driving arm, and also includes a spring, the upper and lower ends of the spring are respectively fixedly connected to the pressing plate and the first mounting plate.

[0013] As a preferred embodiment of the present invention: the second test arm is rotatably connected to a rotating shaft, a spline shaft is fixedly installed on the top of the rotating shaft, a spline sleeve is slidably connected to the spline shaft, a second slot engaging with the spline sleeve is provided on the second test arm, a card plate is fixedly installed on the bottom of the rotating shaft, and a first slot engaging with the card plate is provided on the vertical arm of the driving arm.

[0014] As a preferred embodiment of the present invention: a test block is fixedly mounted on the rotating shaft, a third inclined surface is arranged on the test block, and a wire clamping groove is arranged at the bottom of one end of the test block close to the third inclined surface.

[0015] A method for testing the durability of dental floss comprises the following steps: Step 1: Fix the dental floss stick on the clamping assembly and place the dental floss above the first inclined surface; Step 2, driving the dental floss stick to rise and fall, so that the dental floss reciprocates through the first inclined surface and the second inclined surface and passes through the joint of the first test arm and the second test arm, simulating the dental floss shuttling between teeth; Step 3: Move the dental floss to the middle of the test slider, unlock the test slider, and drive the test slider to move up and down, and use the friction between the test slider and the end surface of the second test arm to rub the dental floss to test the torsional strength of the dental floss; Step 4: Move the dental floss through the third inclined surface to the bottom of the test block, then raise the dental floss and insert it into the wire clamping groove, drive the dental floss to rise until the dental floss breaks, and test the tensile strength of the dental floss.

[0016] Compared with the prior art, the present invention provides a dental floss durability testing device, which has the following beneficial effects: 1. The dental floss durability test device integrates multiple test modes, including simulating the floss passing between teeth and evaluating the torsional strength and tensile strength of the dental floss, so that researchers can comprehensively evaluate the durability of the dental floss and meet different test needs; 2. The dental floss durability test device, through the arrangement of the first annular pressure sensor 29 and the second annular pressure sensor 31, can measure the force and resistance of the dental floss in the process of rising and falling in real time and accurately, and provide reliable data support for evaluating the durability of the dental floss; 3. The dental floss durability test device has a clamping assembly designed with a symmetrical threaded screw 35 and a clamping block 34, which can be adjusted according to dental floss sticks of different sizes to ensure the accuracy and applicability of the test. The device can transmit the detected data to the display host to facilitate researchers to record and analyze data. This data recording and analysis function helps researchers to have a deeper understanding of the durability of dental floss and provide strong support for product improvement and optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional schematic diagram of a dental floss durability testing device proposed by the present invention Figure 1 ; Figure 2 This is a schematic structural diagram of a driving frame of a dental floss durability testing device proposed by the present invention; Figure 3 The main view of a dental floss durability testing device proposed by the present invention Figure 1 ; Figure 4 A dental floss durability testing device proposed by the present invention Figure 3 Schematic diagram of the structure of part A Figure 2 ; Figure 5 A dental floss durability testing device proposed by the present invention Figure 3 The structural diagram of part B; Figure 6 This is a schematic structural diagram of a first test arm of a dental floss durability test device proposed by the present invention; Figure 7 A schematic diagram of the structure of a clamping assembly of a dental floss durability testing device proposed by the present invention; Figure 8 A schematic diagram of the structure of a test block of a dental floss durability test device proposed by the present invention; Fig. 9 The main view of a dental floss durability testing device proposed by the present invention Figure 2 .

[0018] In the figure: 1, base; 2, first hinge seat; 3, first test arm; 4, second test arm; 5, tension spring; 6, test slider; 7, first mounting plate; 8, limit slider; 9, drive arm; 10, first slot; 11, pressing plate; 12, spring; 13, rotating shaft; 14, spline shaft; 15, spline sleeve; 16, test block; 17, wire slot; 18, first inclined surface; 19, second inclined surface; 20, second mounting plate; 21, limit rod ; 22. third mounting plate; 23. first motor; 24. eccentric wheel; 25. crank; 26. fourth mounting plate; 27. second hinged seat; 28. mounting column; 29. ​​first annular pressure sensor; 30. limit plate; 31. second annular pressure sensor; 32. first mounting bracket; 33. slide rod; 34. clamping block; 35. symmetrical threaded screw; 36. second mounting bracket; 37. third inclined plane; 38. clamping plate; 39. second motor. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] Example: Refer to Figure 1-Figure 9 A dental floss durability testing device comprises a base 1, and also comprises: a first test arm 3 and a second test arm 4 arranged at both ends of the base 1; a test slider 6, which is arranged on the first test arm 3, and the test slider 6 is in contact with one end of the second test arm 4 away from the first hinge seat 2; the top of the test slider 6 and the second test arm 4 are both provided with a first inclined surface 18; the top of the test slider 6 and the second test arm 4 are both provided with a second inclined surface 19; a driving frame, which is connected to the base 1, and a clamping assembly is arranged on the driving frame for lifting and lowering, and the dental floss stick is fixed on the clamping assembly, and the clamping assembly drives the dental floss stick to rise and fall; in the process of lifting and lowering the dental floss stick, the dental floss is inserted between the first test arm 3 and the second test arm 4 through the first inclined surface 18 and the second inclined surface 19 to simulate the dental floss shuttling between teeth.

[0022] In this embodiment, the dental floss stick is fixed by a clamping assembly, and then the dental floss stick is driven to rise and fall reciprocally. During this process, the dental floss is driven to reciprocate through the fitting portion of the test slider 6 and the second test arm 4. During this process, the dental floss pushes the test slider 6 and the second test arm 4, so that the test slider 6 and the second test arm 4 are reciprocatedly separated and merged, thereby simulating the dental floss passing through the gap between two groups of adjacent teeth. By simulating the shuttling and stress of the dental floss between the teeth, the testing device can evaluate the wear resistance, breaking strength and overall durability of the dental floss, making the evaluation of the durability of the dental floss more efficient and reliable. Reference Fig. 9 In order to facilitate the rapid reset of the test slider 6 and the second test arm 4 after the reciprocating movement, and to maintain the resistance when the dental floss passes through, the first test arm 3 and the second test arm 4 are fixedly connected to the base 1, and the first test arm 3 and the second test arm 4 are made of elastic metal, and the elastic metal is copper alloy, zinc alloy, etc. The elastic metal has excellent elasticity and recovery performance. When the dental floss passes through the gap between the test slider 6 and the second test arm 4, they will be deformed to a certain extent due to the thrust of the dental floss. Once the dental floss passes through, the characteristics of the elastic metal will make them quickly return to their original shape, thereby achieving rapid reset. The hardness of the elastic metal is moderate, and it can provide a certain resistance when the dental floss shuttles. This resistance helps to simulate the friction environment in the real tooth gap, so as to more accurately evaluate the durability of the dental floss. Reference Figure 1 In order to facilitate the rapid reset of the test slider 6 and the second test arm 4 after the reciprocating movement and maintain the resistance when the dental floss passes through, it can also be as follows: the first hinge seats 2 are fixedly installed at both ends of the base 1, the first test arm 3 and the second test arm 4 are rotatably connected to the two groups of first hinge seats 2 respectively, and a tension spring 5 is fixedly installed on the first test arm 3, and the end of the tension spring 5 away from the first test arm 3 is fixedly connected to the second test arm 4. When the dental floss passes through the gap between the test slider 6 and the second test arm 4, they will swing relative to each other due to the thrust of the dental floss. At this time, the tension spring 5 will be stretched to store elastic potential energy; once the dental floss passes through, the tension spring 5 will release the stored elastic potential energy, pushing the first test arm 3 and the second test arm 4 to quickly return to their original positions, thereby achieving rapid reset. Due to the presence of the tension spring 5, when the dental floss passes through the test area, the contact between the test slider 6 and the second test arm 4 will generate a certain resistance, which helps to simulate the friction environment in the real tooth gap, thereby more accurately evaluating the durability of the dental floss.

[0023] Reference Figure 2-Figure 5 The driving frame includes a second mounting plate 20 fixedly connected to the base 1, a limiting rod 21 is fixedly installed on the second mounting plate 20, a third mounting plate 22 is fixedly installed on the top of the limiting rod 21, a first motor 23 is fixedly installed on the third mounting plate 22, an eccentric wheel 24 is fixedly installed on the output shaft of the first motor 23, a force detection component is rotatably connected to the eccentric wheel 24, and the force detection component is slidably arranged on the limiting rod 21; the force detection component includes: a fourth mounting plate 26 slidably mounted on the limiting rod 21, a second hinge seat 27 is fixedly mounted on the fourth mounting plate 26, and the second hinge seat 27 is rotatably connected to the crank 25; a mounting column 28 is fixedly installed at the bottom of the fourth mounting plate 26, a second mounting frame 36 is slidably mounted on the mounting column 28, a first mounting frame 32 is fixedly installed at the bottom of the second mounting frame 36, and a clamping component is arranged on the first mounting frame 32 ; The mounting column 28 extends to one end inside the second mounting frame 36 and is fixedly mounted with a limit plate 30; a first annular pressure sensor 29 is sleeved on the mounting column 28, and the upper and lower ends of the first annular pressure sensor 29 respectively conflict with the limit plate 30 and the top inner part of the second mounting frame 36; a second annular pressure sensor 31 is arranged in the second mounting frame 36, and the two ends of the second annular pressure sensor 31 conflict with the top of the first mounting frame 32 and the bottom of the limit plate 30; the clamping assembly includes a second motor 39 and a slide rod 33 fixedly mounted on the first mounting frame 32, and two groups of symmetrically arranged clamping blocks 34 are slidably connected to the slide rod 33, and a symmetrical threaded screw 35 is rotatably mounted on the first mounting frame 32, and the two groups of clamping blocks 34 are respectively engaged with two groups of threads with opposite spiral directions on the symmetrical threaded screw rod 35, and the symmetrical threaded screw rod 35 is fixedly connected to the output shaft of the second motor 39.

[0024] like Figure 5 and Figure 7 As shown, the second motor 39 is started or the adjusting handle fixed on the symmetrical threaded screw 35 is rotated to drive the symmetrical threaded screw 35 to rotate, and cooperates with the slide bar 33 to drive the two sets of clamping blocks 34 to move synchronously toward the center of the symmetrical threaded screw 35 to clamp and fix the dental floss stick, or drive the two sets of clamping blocks 34 to move synchronously toward the two ends of the symmetrical threaded screw 35 to loosen the dental floss stick; like Figure 2 and Figure 5 As shown, the first motor 23 is started, the first motor 23 drives the eccentric wheel 24 to rotate, the eccentric wheel 24 drives the fourth mounting plate 26 to reciprocate and rise and fall through the crank 25 and the second hinge seat 27, the fourth mounting plate 26 drives the limit plate 30 to reciprocate and rise and fall through the mounting column 28, and the limit plate 30 drives the second mounting frame 36 and the first mounting frame 32 to reciprocate and rise and fall through the first annular pressure sensor 29 and the second annular pressure sensor 31; like Figure 4 and Figure 5 As shown, while the first mounting frame 32 is reciprocatingly lifted and lowered, the clamping assembly is driven to be reciprocated and lifted, thereby driving the dental floss stick to be reciprocated and lifted, and driving the dental floss to slide back and forth between the test slider 6 and the second test arm 4 .

[0025] During the test, when the dental floss stick moves upward, the second annular pressure sensor 31 detects the force exerted on the dental floss as it rises, and when the dental floss moves downward, the first annular pressure sensor 29 detects the resistance exerted on the dental floss as it moves downward. In addition, the detected data is transmitted to the display host.

[0026] In summary, the first annular pressure sensor 29 and the second annular pressure sensor 31 are used to measure the force and resistance of the dental floss during the rising and falling processes, respectively. This design can accurately capture the interaction force between the dental floss and the test slider 6 and the second test arm 4 in real time, providing reliable data support for evaluating the durability of the dental floss.

[0027] Reference Figure 1 and Figure 6, the test slider 6 is slidably connected to the cross arm of the first test arm 3, the vertical arm of the first test arm 3 is slidably connected to the limit slider 8 and fixedly connected to the first mounting plate 7, the limit slider 8 is fixedly connected to the driving arm 9, and the driving arm 9 is fixedly installed with a pressing plate 11, and also includes a spring 12, the upper and lower ends of the spring 12 are respectively fixedly connected to the pressing plate 11 and the first mounting plate 7; the second test arm 4 is rotatably connected to the rotating shaft 13, the top of the rotating shaft 13 is fixedly installed with a spline shaft 14, the spline shaft 14 is slidably connected with a spline sleeve 15, the second test arm 4 is provided with a second card groove that engages with the spline sleeve 15, the bottom of the rotating shaft 13 is fixedly installed with a card plate 38, and the vertical arm of the driving arm 9 is provided with a first card groove 10 that engages with the card plate 38; the rotating shaft 13 is fixedly installed with a test block 16, the test block 16 is provided with a third inclined surface 37, and the bottom of the test block 16 close to the third inclined surface 37 is provided with a wire clamping groove 17.

[0028] In this embodiment, the spline sleeve 15 is moved out of the second slot, and then the spline sleeve 15 is rotated. The spline sleeve 15 drives the rotating shaft 13 to rotate through the spline shaft 14, and the rotating shaft 13 drives the clamping plate 38 and the test block 16 to rotate 180 degrees, so that the clamping plate 38 is separated from the first slot 10, and the other end surface of the test block 16 is attached to the test slider 6; In addition to the above modes, the device also adds two dental floss testing methods: Test method 1: Move the dental floss to the middle part of the test slider 6, drive the test slider 6 to rise and fall back and forth, and then reciprocately press the pressing plate 11. When the pressing plate 11 descends, the spring 12 contracts. When the pressing plate 11 is released, the spring 12 rebounds, so that the driving arm 9 rises and falls back and forth. The driving arm 9 drives the test slider 6 to rise and fall back and forth. The friction between the driving test slider 6 and the end surface of the second test arm 4 is used to rub the dental floss and twist the dental floss, so as to test the torsional strength of the dental floss. Test method 2: Move the dental floss to the bottom of the test block 16. After the dental floss moves to the bottom of the test block 16, the test slider 6 is attached to the test block 16, and then the dental floss is driven to rise. When the dental floss rises, it slides into the wire clamping groove 17 through the inclined surface at the bottom of the test block 16, and drives the dental floss stick to continue to rise until the dental floss breaks, so as to test the tensile strength of the dental floss.

[0029] In summary, the device integrates multiple testing modes, including simulating the movement of dental floss between teeth and evaluating the torsional strength and tensile strength of dental floss, allowing researchers to comprehensively evaluate the durability of dental floss and meet different testing needs.

[0030] By providing the first annular pressure sensor 29 and the second annular pressure sensor 31, the force and resistance exerted on the dental floss during its ascent and descent can be measured in real time and accurately, providing reliable data support for evaluating the durability of the dental floss.

[0031] The motor drive and clamping component design realizes the automatic lifting and fixing of the dental floss stick, which greatly simplifies the test process and improves the test efficiency. At the same time, the design of the test slider 6 and the test block 16 makes the test process more convenient and easy to operate.

[0032] By means of the test arm or tension spring 5 made of elastic metal, the device can simulate the friction environment in the real tooth gap and the stress condition of the dental floss. Such simulation helps to more accurately evaluate the durability of the dental floss and improve the reliability of the test.

[0033] The clamping assembly adopts a symmetrical threaded screw 35 and a clamping block 34 design, which can be adjusted according to different sizes of dental floss sticks to ensure the accuracy and applicability of the test. The device can transmit the detected data to the display host to facilitate researchers to record and analyze data. This data recording and analysis function helps researchers to have a deeper understanding of the durability of dental floss and provide strong support for product improvement and optimization.

[0034] In summary, the dental floss durability testing device has the advantages of versatility, high-precision measurement, automation and convenience, simulation of real environment, adjustability, and data recording and analysis, providing a comprehensive, accurate and reliable testing method for evaluating the durability of dental floss.

[0035] A method for testing the durability of dental floss comprises the following steps: Step 1, fix the dental floss stick on the clamping assembly and make the dental floss be located above the first inclined surface 18; Step 2: drive the dental floss stick to rise and fall, so that the dental floss reciprocates through the first inclined surface 18 and the second inclined surface 19 and passes through the joint of the first test arm 3 and the second test arm 4, simulating the dental floss shuttling between teeth; Step 3: Move the dental floss to the middle of the test slider 6, unlock the test slider 6, and drive the test slider 6 to move up and down, and use the friction between the test slider 6 and the end surface of the second test arm 4 to rub the dental floss to test the torsional strength of the dental floss; Step 4: Move the dental floss through the third inclined surface 37 to the bottom of the test block 16, then raise the dental floss and insert it into the wire clamping groove 17, drive the dental floss to rise until the dental floss breaks, and test the tensile strength of the dental floss.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dental floss durability testing device, comprising a base (1), characterized in that: Also includes: A first test arm (3) and a second test arm (4) arranged at two ends of the base (1); A test slider (6) is arranged on the first test arm (3), and the test slider (6) is in contact with an end of the second test arm (4) away from the first hinge seat (2); The top of the test slide block (6) and the second test arm (4) are both provided with a first inclined surface (18); The top of the test slide block (6) and the second test arm (4) are both provided with a second inclined surface (19); A driving frame connected to the base (1); a clamping assembly is provided on the driving frame for lifting and lowering; the dental floss stick is fixed on the clamping assembly, and the clamping assembly drives the dental floss stick to rise and fall; During the process of the dental floss stick being raised and lowered, the dental floss is inserted between the first test arm (3) and the second test arm (4) through the first inclined surface (18) and the second inclined surface (19) to simulate the dental floss passing between teeth.

2. A dental floss durability testing device according to claim 1, characterized in that: The first test arm (3) and the second test arm (4) are both fixedly connected to the base (1); the first test arm (3) and the second test arm (4) are both made of elastic metal.

3. A dental floss durability testing device according to claim 1, characterized in that: Both ends of the base (1) are fixedly mounted with first hinge seats (2); the first test arm (3) and the second test arm (4) are rotatably connected to the two sets of first hinge seats (2) respectively; a tension spring (5) is fixedly mounted on the first test arm (3); and one end of the tension spring (5) away from the first test arm (3) is fixedly connected to the second test arm (4).

4. A dental floss durability testing device according to claim 2 or 3, characterized in that: The drive frame comprises a second mounting plate (20) fixedly connected to the base (1); a limit rod (21) is fixedly mounted on the second mounting plate (20); a third mounting plate (22) is fixedly mounted on the top of the limit rod (21); a first motor (23) is fixedly mounted on the third mounting plate (22); an eccentric wheel (24) is fixedly mounted on the output shaft of the first motor (23); a force detection component is rotatably connected to the eccentric wheel (24); and the force detection component is slidably arranged on the limit rod (21).

5. A dental floss durability testing device according to claim 4, characterized in that: The force detection component comprises: a fourth mounting plate (26) slidably mounted on the limiting rod (21), a second hinge seat (27) being fixedly mounted on the fourth mounting plate (26), and the second hinge seat (27) being rotatably connected to the crank (25); A mounting column (28) is fixedly mounted on the bottom of the fourth mounting plate (26), a second mounting frame (36) is slidably mounted on the mounting column (28), a first mounting frame (32) is fixedly mounted on the bottom of the second mounting frame (36), and the clamping assembly is arranged on the first mounting frame (32); One end of the mounting column (28) extending to the interior of the second mounting frame (36) is fixedly mounted with a limit plate (30); A first annular pressure sensor (29) is sleeved on the mounting column (28), and upper and lower ends of the first annular pressure sensor (29) respectively abut against the limiting plate (30) and the top inner portion of the second mounting frame (36); A second annular pressure sensor (31) is arranged in the second mounting frame (36), and two ends of the second annular pressure sensor (31) abut against the top of the first mounting frame (32) and the bottom of the limiting plate (30).

6. A dental floss durability testing device according to claim 5, characterized in that: The clamping assembly comprises a second motor (39) and a slide rod (33) fixedly mounted on a first mounting frame (32); two groups of symmetrically arranged clamping blocks (34) are slidably connected to the slide rod (33); a symmetrical threaded screw rod (35) is rotatably mounted on the first mounting frame (32); the two groups of clamping blocks (34) are respectively engaged with two groups of threads with opposite spiral directions on the symmetrical threaded screw rod (35); and the symmetrical threaded screw rod (35) is fixedly connected to the output shaft of the second motor (39).

7. The dental floss durability testing device according to claim 1, characterized in that: The test slider (6) is slidably connected to the horizontal arm of the first test arm (3); the vertical arm of the first test arm (3) is slidably connected to a limit slider (8) and fixedly connected to a first mounting plate (7); the limit slider (8) is fixedly connected to a driving arm (9); a pressing plate (11) is fixedly mounted on the driving arm (9); and a spring (12) is further included; the upper and lower ends of the spring (12) are respectively fixedly connected to the pressing plate (11) and the first mounting plate (7).

8. A dental floss durability testing device according to claim 7, characterized in that: The second test arm (4) is rotatably connected to a rotating shaft (13), a spline shaft (14) is fixedly mounted on the top of the rotating shaft (13), a spline sleeve (15) is slidably connected to the spline shaft (14), a second clamping groove (10) engaging with the spline sleeve (15) is provided on the second test arm (4), a clamping plate (38) is fixedly mounted on the bottom of the rotating shaft (13), and a first clamping groove (10) engaging with the clamping plate (38) is provided on the vertical arm of the driving arm (9).

9. The dental floss durability testing device according to claim 8, characterized in that: A test block (16) is fixedly mounted on the rotating shaft (13), a third inclined surface (37) is provided on the test block (16), and a wire clamping groove (17) is provided at the bottom of one end of the test block (16) close to the third inclined surface (37).

10. A dental floss durability testing method, using the dental floss durability testing device according to claim 9, characterized in that: The following steps are involved: Step 1, fix the dental floss stick on the clamping assembly, and make the dental floss be located above the first inclined surface (18); Step 2: driving the dental floss stick to rise and fall, so that the dental floss moves back and forth through the first inclined surface (18) and the second inclined surface (19) and passes through the joint between the first test arm (3) and the second test arm (4), simulating the dental floss passing through the gap between teeth; Step 3: Move the dental floss to the middle part of the test slider (6), unlock the test slider (6), and drive the test slider (6) to move up and down, and utilize the friction between the test slider (6) and the end surface of the second test arm (4) to rub the dental floss, so as to test the torsional strength of the dental floss; Step 4: Move the dental floss through the third inclined surface (37) to the bottom of the test block (16), then raise the dental floss and insert it into the wire clamping groove (17), drive the dental floss to rise until the dental floss breaks, and test the tensile strength of the dental floss.

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