Swing test device

Abstract

This utility model relates to the technical field of electric toothbrush R&D tools, and discloses a swing amplitude testing device for testing the swing amplitude of electric toothbrushes, which is compatible with the precise measurement needs of electric toothbrushes with small and large swing amplitudes. The swing amplitude testing device includes: a base; a height adjustment mechanism disposed on the base; the height adjustment mechanism includes a first support plate, the first support plate being adjustable in position along the height direction; a fixing mechanism disposed on the first support plate; the fixing mechanism is used to fix the electric toothbrush; a load mechanism disposed on the base; the electric toothbrush has a vibrating end; the load mechanism is used to apply a load to the vibrating end; an optical detection mechanism including an optical emitting element and an optical reflecting element; the optical emitting element is disposed on the base, and the optical reflecting element is used to be mounted on the vibrating end; along the height direction, the optical reflecting element and the optical emitting element are arranged opposite to each other.

Description

Technical Field

[0001] This utility model relates to the technical field of electric toothbrush R&D tools, specifically to a swing amplitude testing device. Background Technology

[0002] In the field of electric toothbrush oscillation amplitude testing, existing technologies mostly employ a measurement scheme combining side-mounted laser illumination with a reflecting mirror. The principle is to illuminate the reflecting mirror, which vibrates with the brush head, with a laser beam, and calculate the oscillation angle parameters based on the displacement change of the reflected light spot. However, this technology has a significant drawback: when the reflecting mirror oscillates left and right with the brush head, its geometric perpendicular bisector shifts dynamically due to vibration, causing inconsistent tilt angle changes on the left and right sides of the mirror, resulting in a large deviation between the calculated and actual oscillation angle values. Furthermore, existing testing devices are primarily designed for the small-amplitude vibration scenarios of sonic electric toothbrushes. When applied to large-amplitude acoustic or sweeping electric toothbrushes, the test error further increases significantly due to the non-linear relationship between the perpendicular bisector offset and the oscillation angle. This technological limitation means that existing testing devices cannot simultaneously meet the accurate measurement needs of both small-amplitude and large-amplitude electric toothbrushes, making it difficult to satisfy the full-range oscillation amplitude testing requirements of various motor types, severely restricting the quality control efficiency in the R&D and production processes of electric toothbrushes. Utility Model Content

[0003] In view of this, the present invention provides an amplitude testing device to solve the problem that existing amplitude testing devices cannot simultaneously meet the accurate measurement requirements of electric toothbrushes with small and large amplitudes.

[0004] This utility model provides a swing amplitude testing device for testing the swing amplitude of an electric toothbrush, comprising: a base; a height adjustment mechanism disposed on the base; the height adjustment mechanism includes a first support plate, the first support plate being adjustable in position along the height direction; a fixing mechanism disposed on the first support plate; the fixing mechanism is used to fix the electric toothbrush; a load mechanism disposed on the base; the electric toothbrush has a vibrating end; the load mechanism is used to apply a load to the vibrating end; and an optical detection mechanism including an optical emitting element and an optical reflecting element; the optical emitting element is disposed on the base, and the optical reflecting element is used to be mounted on the vibrating end; along the height direction, the optical reflecting element and the optical emitting element are arranged opposite to each other.

[0005] In one optional embodiment, the height adjustment mechanism further includes a second support plate and an adjustment locking structure; the second support plate is disposed on the base and spaced apart from the first support plate in the height direction; the adjustment locking structure is connected between the first support plate and the second support plate; the adjustment locking structure is used to adjust the position of the first support plate in the height direction and limit the first support plate to the target position.

[0006] In one alternative embodiment, the adjusting locking structure includes an adjusting member; the adjusting member passes through the first support plate in the height direction and is threadedly connected to the first support plate, and the adjusting member abuts against the second support plate.

[0007] In one alternative embodiment, the adjusting locking structure includes a first connector and a fastener; along the height direction, one end of the first connector is connected to one of a first support plate and a second support plate, and the other end is slidably connected to the other of the first support plate and the second support plate; the fastener is threadedly connected to the other of the first support plate and the second support plate, and is adapted to abut against or disengage from the first connector.

[0008] In one alternative embodiment, the height adjustment mechanism includes a guide member, one end of which is connected to one of the first support plate and the second support plate along the height direction, and the other end of which is slidably connected to the other of the first support plate and the second support plate.

[0009] In one alternative embodiment, the optical detection mechanism is located on one side of the fixing mechanism along the first direction; the optical emitting element is adjustablely positioned on the base along the first direction; the first direction is perpendicular to the height direction.

[0010] In one optional embodiment, the optical detection mechanism further includes a second connector, on which an optical emitting element is mounted; the base is provided with a first strip-shaped hole and a second strip-shaped hole extending along a first direction; the optical emitting element passes through the first strip-shaped hole, and the second connector is positionably connected to the second strip-shaped hole.

[0011] In one alternative embodiment, the optical inspection mechanism further includes a first scale located on the base and fitted onto the optical emitting element; the first scale is used to mark the size of the reflected light from the optical reflecting element in a second direction; the second direction is perpendicular to both the height direction and the first direction.

[0012] In one alternative embodiment, the load mechanism includes a support, a load application member, and a counterweight; the support is disposed on a base; the load application member is slidably connected to the support along the height direction; along the height direction, the top of the load application member is used to place the counterweight, and the bottom is used to apply a load to the vibrating end.

[0013] In one alternative embodiment, a second scale is provided on the support, the second scale being located on one side of the fixing mechanism along a second direction; the second scale is used to mark the position of the fixing mechanism in the height direction; the second direction is perpendicular to the height direction.

[0014] In one optional embodiment, the fixing mechanism includes: a first fixing part connected to a first support plate; a second fixing part rotatably connected to the first fixing part; a receiving groove provided between the first fixing part and the second fixing part; the second fixing part having a fixed position that covers the first fixing part and an open position that exposes the receiving groove; and a locking part disposed on the first fixing part and / or the second fixing part; the locking part is used to lock the first fixing part and the second fixing part when the second fixing part is in the closed position.

[0015] This invention utilizes a height adjustment mechanism between the fixing mechanism and the base. This mechanism adjusts the position of the fixing mechanism in the height direction, thereby adjusting the relative height of the optical reflective and emitting elements mounted on the electric toothbrush. When dealing with electric toothbrushes with small swing amplitudes, the height adjustment mechanism can be used to adjust the relative height of the optical reflective and emitting elements to obtain a longer reflected light length, improving test accuracy. When dealing with electric toothbrushes with large swing amplitudes, the height adjustment mechanism can be used to adjust the relative height of the optical reflective and emitting elements to obtain a suitable reflected light length, preventing the reflected light length from exceeding the range of the testing device, thus better accommodating the testing requirements of products with large swing amplitudes. Therefore, this invention, by adjusting the relative height of the optical reflective and emitting elements through a height adjustment mechanism, can flexibly change the reflected light length, thereby accommodating the testing needs of both small and large swing amplitude electric toothbrushes, ensuring test accuracy, and meeting the full-range swing amplitude testing requirements of various types of motor products. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a swing amplitude testing device according to an embodiment of the present utility model;

[0018] Figure 2 This is a partial structural schematic diagram of a swing amplitude testing device according to an embodiment of the present utility model;

[0019] Figure 3 This is a cross-sectional view of a swing amplitude testing device according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the swing amplitude testing device according to an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 10. Electric toothbrush; 101. Vibrating end;

[0023] 1. Base; 11. First slotted hole; 12. Second slotted hole; 2. Height adjustment mechanism; 21. First support plate; 22. Second support plate; 23. Adjusting component; 24. First connecting component; 25. Fastener; 26. Guide component; 27. First bearing; 28. Second scale; 3. Fixing mechanism; 31. First fixing part; 32. Second fixing part; 33. Locking part; 4. Loading mechanism; 41. Support; 42. Load applying component; 43. Counterweight; 44. Second bearing; 5. Optical detection mechanism; 51. Optical emitting element; 52. Optical reflecting element; 53. Second connecting component; 54. First scale; 55. Switch button; X, First direction; Y, Second direction; Z, Height direction. Detailed Implementation

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

[0025] The following is combined with Figures 1 to 4 The following describes embodiments of the present invention.

[0026] According to an embodiment of this utility model, an amplitude testing device is provided for testing the amplitude of an electric toothbrush 10. The electric toothbrush 10 has a vibrating end 101 and a handle end. The brush head of the electric toothbrush 10 is located at the vibrating end 101, and the handle end is used by the user to hold the electric toothbrush 10. Specifically, as... Figures 1-3 As shown, the swing amplitude testing device includes a base 1 and a height adjustment mechanism 2, a fixing mechanism 3, a load mechanism 4 and an optical detection mechanism 5 disposed on the base 1.

[0027] Furthermore, the height adjustment mechanism 2 includes a first support plate 21, which is adjustable in position along the height direction Z. A fixing mechanism 3 is disposed on the first support plate 21 and is used to fix the electric toothbrush 10. Understandably, when the first support plate 21 is adjusted in position along the height direction Z, the position of the fixing mechanism 3 in the height direction Z can be adjusted, thereby adjusting the position of the electric toothbrush 10 fixed on the fixing mechanism 3.

[0028] Furthermore, the load mechanism 4 is used to apply a load to the vibrating end 101. More specifically, the load mechanism 4 can apply a load to the brush head position of the vibrating end 101, more specifically to the bristle position of the brush head, to simulate the vibration of the electric toothbrush 10 under actual use, thereby measuring the amplitude under actual use.

[0029] Furthermore, the optical detection mechanism 5 includes an optical emitting element 51 and an optical reflecting element 52. The optical emitting element 51 is disposed on the base 1, and the optical reflecting element 52 is used to mount on the vibrating end 101. Along the height direction Z, the optical reflecting element 52 is disposed opposite to the optical emitting element 51. Specifically, the optical reflecting element 52 can be mounted on the vibrating end 101 near the motor shaft of the electric toothbrush 10, preferably the optical reflecting element 52 is arranged parallel to the motor shaft. It is understood that the electric toothbrush 10 is equipped with a motor, which can be disposed at the handle end or the vibrating end 101. The motor shaft is the output end of the motor, located at the vibrating end 101, and is used to drive the brush head to vibrate or oscillate to achieve the brushing action. More specifically, the aforementioned brush head is mounted on the motor shaft, and the optical reflecting element 52 can be mounted on the end of the brush head near the handle end, that is, the end away from the bristles.

[0030] For example, the optical emitting element 51 can be a laser emitter, a light source, etc. For example, the optical reflecting element 52 can be a lens, a reflector, etc. For example, the optical reflecting element 52 can be mounted on the electric toothbrush 10 by means of adhesive, snap-on, etc.

[0031] The swing testing principle of this utility model's swing testing device is as follows: Figure 4 As shown, the load mechanism 4 is gently placed on the brush head to simulate brushing force. The optical emitting element 51 emits a light beam towards the optical reflecting element 52. The optical reflecting element 52 reflects the light beam as the brush head swings at high speed, causing it to move with the swing of the brush head. Under the action of high-speed swing, the reflected light beam forms a reflected ray on the plane where the optical emitting element 51 is located, and the length of the reflected ray is L. The distance between the optical emitting element 51 and the optical reflecting element 52 in the height direction Z is H. The swing amplitude of the electric toothbrush 10 is α. According to the arctangent function of a right triangle, α = 2θ = 2arctan(L / 2 / H).

[0032] Conventional testing devices typically use a side-mounted laser to measure the angle. When the reflective element swings left and right, the center of the vertical line of the reflective element also changes, causing inconsistent left and right tilt angles. Therefore, the calculated final swing angle has a large error compared to the actual swing angle, resulting in poor accuracy. This error is further increased when dealing with electric toothbrushes with smaller swing amplitudes.

[0033] In this embodiment, an optical reflective element 52 and an optical emitting element 51, positioned opposite each other in the height direction Z, are used for amplitude testing. Compared to the conventional side-injection measurement method, this method offers higher accuracy. Furthermore, in this embodiment, a height adjustment mechanism 2 is provided between the fixing mechanism 3 and the base 1. This mechanism adjusts the position of the fixing mechanism 3 in the height direction Z, thereby adjusting the relative height of the optical reflective element 52 and the optical emitting element 51 mounted on the electric toothbrush 10. When dealing with an electric toothbrush 10 with a small amplitude, the height adjustment mechanism 2 can be used to adjust the relative height of the optical reflective element 52 and the optical emitting element 51 to obtain a longer reflected light length L, improving test accuracy. When dealing with an electric toothbrush 10 with a large amplitude, the height adjustment mechanism 2 can be used to adjust the relative height of the optical reflective element 52 and the optical emitting element 51 to obtain a suitable reflected light length L, preventing the reflected light length from exceeding the measurement range of the testing device and better accommodating the testing needs of products with large amplitudes.

[0034] Therefore, the technical solution of this utility model adjusts the relative height of the optical reflective element 52 and the optical emitting element 51 by adjusting the height adjustment mechanism 2, which can flexibly change the length of the reflected light, thereby taking into account the testing needs of electric toothbrushes 10 with small and large swing amplitudes, ensuring testing accuracy, and meeting the full-range swing amplitude testing requirements of various types of motor products.

[0035] Furthermore, the swing amplitude testing device of this utility model also has a first direction X and a second direction Y, both of which are perpendicular to the height direction Z, and the first direction X is perpendicular to the second direction Y. In actual use, the length direction of the electric toothbrush 10 is parallel to the first direction X and fixed on the fixing mechanism 3. At this time, the electric toothbrush 10 swings in the second direction Y, and the reflected light L is also the dimension in the second direction Y.

[0036] In some embodiments, the optical detection mechanism 5 further includes a first scale 54, which is located on the base 1 and fitted onto the optical emitting element 51. The first scale 54 is used to mark the size of the reflected light from the optical reflecting element 52 in the second direction Y, so as to intuitively and quickly identify the specific value of L and improve detection efficiency. Understandably, the first scale 54 extends in the second direction Y, and has an origin at its center, with graduations on both sides of the origin. Preferably, the light emitting element is located at the origin of the first scale 54 to further improve the convenience of data reading.

[0037] In some embodiments, the height adjustment mechanism 2 may further include a second scale 28, which is located on one side of the fixing mechanism 3 along the second direction Y. The second scale 28 is used to mark the position of the fixing mechanism 3 in the height direction Z, so as to accurately adjust the fixing mechanism 3 to the target position according to the scale displayed on the second scale 28; at the same time, the specific value of H can be identified intuitively and quickly using the second scale 28, further improving the detection efficiency.

[0038] Furthermore, in some embodiments, the height adjustment mechanism 2 further includes a second support plate 22 and an adjustment locking structure. The second support plate 22 is disposed on the base 1 and spaced apart from the first support plate 21 in the height direction Z. The adjustment locking structure is connected between the first support plate 21 and the second support plate 22. The adjustment locking structure is used to adjust the position of the first support plate 21 along the height direction Z and limit the first support plate 21 to the target position. In this embodiment, the second support plate 22 cooperates with the adjustment locking structure to provide a stable support foundation for the first support plate 21, ensuring structural stability during the height adjustment process and avoiding positional displacement caused by vibration.

[0039] As an alternative implementation, the height adjustment mechanism 2 may not have a second support plate 22. Instead, the adjustment and locking structure is connected between the base 1 and the first support plate 21, and the base 1 provides a stable support foundation for the first support plate 21.

[0040] Specifically, in some embodiments, the adjusting locking structure includes an adjusting member 23. The adjusting member 23 extends through the first support plate 21 along the height direction Z and is threadedly connected to the first support plate 21. The adjusting member 23 also abuts against the second support plate 22, specifically against the surface of the second support plate 22 facing the first support plate 21. In this embodiment, the threaded adjusting member 23 allows for fine-tuning of the height of the first support plate 21. By rotating the adjusting member 23, the height of the fixing mechanism 3 can be precisely controlled, thereby controlling the vertical position of the optical reflecting element 52 and improving adjustment accuracy. For example, the adjusting member 23 can be a lifting screw, which has a simple structure and low production cost.

[0041] Specifically, the adjusting member 23 is provided with a threaded section, and correspondingly, the first support plate 21 is provided with a threaded hole that extends through the height direction Z. The threaded section of the adjusting member 23 passes through the threaded hole and is threadedly engaged with the threaded hole.

[0042] As an alternative implementation, the adjusting member 23 passes through the second support plate 22 along the height direction Z and is threadedly connected to the second support plate 22, and the adjusting member 23 abuts against the first support plate 21, specifically against the surface of the first support plate 21 facing the first support plate 21.

[0043] The adjusting element 23 can be configured as at least one. For example, such as... Figure 1 As shown, one adjusting member 23 is provided, and the adjusting member 23 is disposed on one side of the first support plate 21 and the second support plate 22 along the second direction Y. Alternatively, two adjusting members 23 are provided, and the two adjusting members 23 are respectively disposed on both sides of the first support plate 21 and the second support plate 22 along the second direction Y.

[0044] In some embodiments, the adjusting locking structure includes a first connector 24 and a fastener 25. Along the height direction Z, one end of the first connector 24 is connected to one of the first support plate 21 and the second support plate 22, and the other end is slidably connected to the other of the first support plate 21 and the second support plate 22. The fastener 25 is threadedly connected to the other of the first support plate 21 and the second support plate 22 and is adapted to abut or disengage from the first connector 24. In this embodiment, when the height of the fixing mechanism 3 needs to be adjusted, the fastener 25 is loosened to disengage from the first connector 24, thereby enabling relative movement between the first support plate 21 and the second support plate 22. When the fixing mechanism 3 is adjusted to the target position, the fastener 25 is tightened to abut against the first connector 24, thereby restricting relative movement between the first support plate 21 and the second support plate 22, thus limiting the first support plate 21 to the target position. This configuration ensures that the first support plate 21 can be smoothly adjusted along the height direction Z, and the position can be quickly locked by the fastener 25 to prevent height changes caused by vibration during the test, thereby improving the accuracy of the test.

[0045] Specifically, such as Figure 1 and Figure 2 As shown, a receiving space is formed within the base 1. Along the height direction Z, the first end of the first connector 24 is connected to the first support plate 21, such as by threaded connection, interference fit, riveting, etc. The second support plate 22 has a first hole extending along the height direction Z, corresponding to the first connector 24. Along the height direction Z, the second end of the first connector 24 passes through the first hole and is slidably connected to the second support plate 22, with at least a portion of its structure extending into the receiving space of the base 1. The second support plate 22 also has a second hole on one side along the second direction Y, which communicates with the first hole. A fastener 25 is threaded into the second hole so that it abuts against the first connector 24 when tightened and disengages from the first connector 24 when loosened.

[0046] For example, the first connector 24 can be a column-shaped structure, a rod-shaped structure, etc.; for example, the fastener 25 can be a screw, a threaded rod, etc.

[0047] As an alternative implementation, the first support plate 21 is provided with the aforementioned first hole and second hole. The first end of the first connector 24 passes through the first hole of the first support plate 21 and is slidably connected to the first support plate 21. The second end of the first connector 24 is connected to the second support plate 22. The fastener 25 is threadedly connected to the second hole of the first support plate 21.

[0048] The first connector 24 and the fastener 25 may each be provided with at least one. For example, as shown... Figure 1 As shown, each of the first connector 24 and fastener 25 is provided as one, and the first connector 24 and fastener 25 are disposed on one side of the first support plate 21 and the second support plate 22 along the second direction Y. Exemplarily, each of the first connector 24 and fastener 25 is provided as two, with the two first connectors 24 and the two fasteners 25 respectively disposed on both sides of the first support plate 21 and the second support plate 22 along the second direction Y. It should be noted that the number of first connectors 24 and fasteners 25 can be the same or different; in some cases, the number of fasteners 25 can be more than the number of first connectors 24.

[0049] Understandably, the aforementioned adjusting member 23 has an adjusting function, and the threaded engagement between the adjusting member 23 and the first support plate 21 has a self-locking function. Therefore, in some embodiments not shown in the figures, the adjusting locking structure may only include the aforementioned adjusting member 23.

[0050] Understandably, when the first connector 24 and the fastener 25 are disengaged, the first support plate 21 can be manually raised to adjust its height. Therefore, in some embodiments not shown in the figures, the adjusting locking structure may only include the first connector 24 and the fastener 25.

[0051] Furthermore, in some embodiments, the height adjustment mechanism 2 includes a guide 26 along the height direction Z. One end of the guide 26 is connected to one of the first support plate 21 and the second support plate 22, and the other end is slidably connected to the other of the first support plate 21 and the second support plate 22. In this embodiment, the guide 26 provides a linear motion trajectory constraint for height adjustment, preventing horizontal deviation of the first support plate 21 during adjustment and ensuring the vertical alignment accuracy between the optical detection mechanism 5 and the brush head being tested.

[0052] Specifically, such as Figure 2 and Figure 3 As shown, along the height direction Z, the first end of the guide member 26 is connected to the first support plate 21, such as by threaded connection, interference fit, riveting, etc. Along the height direction Z, the second end of the guide member 26 is slidably connected to the second support plate 22, and at least part of the structure extends into the receiving space of the base 1.

[0053] As an alternative implementation, along the height direction Z, the first end of the guide member 26 is slidably connected to the first support plate 21, and the second end of the guide member 26 is connected to the first support plate 21, such as by means of threaded connection, interference fit, riveting, etc.

[0054] The guide member 26 can be provided at least one, for example, there can be one, two, three, four, five or other numbers of guide members 26. For example, there can be four guide members 26, the second support plate 22 is rectangular, and the four guide members 26 are respectively located at the four corners of the rectangular structure.

[0055] In some embodiments, the height adjustment mechanism 2 includes a first bearing 27, which is disposed at the sliding connection between the guide member 26 and the first support plate 21 or the second support plate 22 to reduce sliding friction and improve the smoothness of height adjustment. For example, the first bearing 27 can be a ball bearing, roller bearing, needle roller bearing, etc.

[0056] Furthermore, in some embodiments, the optical detection mechanism 5 is located on one side of the fixing mechanism 3 along the first direction X. The optical emitting element 51 is adjustablely positioned on the base 1 along the first direction X. In this embodiment, the adjustable position of the optical emitting element 51 along the first direction X can adapt to the detection of the swing amplitude of electric toothbrushes 10 of different lengths, thus improving the applicability of the detection device.

[0057] Specifically, in some embodiments, the optical inspection mechanism 5 further includes a second connector 53, on which the optical emitting element 51 is mounted. The base 1 has a first strip-shaped hole 11 and a second strip-shaped hole 12 extending along a first direction X. The optical emitting element 51 passes through the first strip-shaped hole 11, and the second connector 53 is adjustablely connected to the second strip-shaped hole 12. In this embodiment, the second strip-shaped hole 12 cooperates with the second connector 53 to achieve rapid installation and position adjustment of the optical emitting element 51 in the first direction X. The first strip-shaped hole 11 cooperates with the optical emitting element 51 to provide movement space for the optical emitting element 51, simplifying the optical path calibration process and improving equipment assembly efficiency.

[0058] For example, such as Figure 2 As shown, the second connector 53 and the optical emitting element 51 can be located within the receiving space of the base 1. The optical emitting element 51 passes through the first slot 11, and at least part of its structure extends above the base 1. The aforementioned first scale 54 can be located above the base 1 and fitted onto the optical emitting element 51. The second connector 53 can be connected to the second slot 12 using bolts or the like.

[0059] Further, the optical detection mechanism 5 further includes a switch button 55. The switch button 55 can be arranged on the base 1 and is electrically connected to the optical emission element 51 for controlling the opening and closing of the optical emission element 51, which is convenient to operate.

[0060] As an alternative embodiment, the optical detection mechanism 5 may further include a control module and a vision acquisition module. The vision acquisition module acquires one or more frames of image information of the light beam passing through the optical reflection element 52 and transmits the image information to the control module. The control module analyzes the movement trajectory and position change of the light beam according to the acquired image information and calculates the swing amplitude α.

[0061] Further, in some embodiments, the base 1 can be arranged as a box-shaped structure with the above-mentioned accommodation space to provide an accommodation space and a movement space for the above-mentioned first connecting member 24, guiding member 26, second connecting member 53, etc.

[0062] As an alternative implementation direction, the base 1 can also be arranged as a plate shape, a "ㄇ" shape, a "匚" shape, etc., as long as the corresponding supporting function can be realized.

[0063] In a conventional testing device, the mechanism for applying a load to the electric toothbrush 10 is usually relatively complex, and the applied force is affected by friction or other gravity and does not conform to the expectation, increasing the uncontrollable risk and resulting in low testing accuracy. To improve this problem, further, in some embodiments, the load mechanism 4 includes a support 41, a load applying member 42, and a counterweight 43. The support 41 is arranged on the base 1 and is connected to the base 1 by means such as bolt connection, welding, interference fit, etc. The load applying member 42 is slidably connected to the support 41 along the height direction Z. Along the height direction Z, the top of the load applying member 42 is used to place the counterweight 43, and the bottom is used to apply a load to the vibrating end 101. In this embodiment, the load applying member 42 is used to vertically apply a load to the vibrating end 101 without adding additional resistance. The setting method is simple and reliable, and the detection accuracy is high. At the same time, the combination of the load applying member 42 and the counterweight 43 can flexibly adjust the load size applied to the vibrating end 101 by increasing or decreasing the counterweight 43, simulate the vibration states under different usage scenarios, and enhance the practicability of the test results and the compatibility of the testing device.

[0064] Exemplarily, the load applying member 42 may include a sliding connecting rod, a top plate, and a bottom plate. The sliding connecting rod penetrates through the top of the support 41 along the height direction Z and is slidably connected to the support 41. The top plate is connected to the top of the sliding connecting rod and is used to place the above-mentioned counterweight 43. The bottom plate is connected to the bottom of the sliding connecting rod and is located above the vibrating end 101, specifically above the bristles of the vibrating end 101. Exemplarily, convex columns may be provided on the top plate, and the counterweight 43 can be inserted through the convex columns to prevent the counterweight 43 from falling due to vibration during the detection process. Exemplarily, the counterweight 43 may be a standard weight such as a weight.

[0065] In some embodiments, the load mechanism 4 further includes a second bearing 44, which is mounted at the sliding connection between the sliding connecting rod and the support 41 to reduce the friction between them, thereby further reducing resistance and improving detection accuracy. For example, the second bearing 44 can be a ball bearing, roller bearing, needle roller bearing, etc.

[0066] In some embodiments, the height adjustment mechanism 2 includes the second scale 28 described above, and the support 41 is disposed on one side of the fixing mechanism 3 along the second direction Y, and the second scale 28 may be disposed on the support 41.

[0067] In some embodiments, a receiving groove is formed within the fixing mechanism 3. The fixing mechanism 3 is used to fix the handle end of the electric toothbrush 10 within the receiving groove and expose the vibrating end 101 outside the receiving groove. Specifically, the fixing mechanism 3 includes a first fixing part 31, a second fixing part 32, and a locking part 33. The first fixing part 31 is connected to the first support plate 21, such as by bolt connection or integral molding. The receiving groove is provided on the first fixing part 31, or the receiving groove is jointly formed on the first fixing part 31 and the second fixing part 32. The second fixing part 32 is rotatably connected to the first fixing part 31. The second fixing part 32 has a fixed position that covers the first fixing part 31 and an open position that exposes the receiving groove. The locking part 33 is provided on the first fixing part 31 and / or the second fixing part 32 and is used to lock the first fixing part 31 and the second fixing part 32 when the second fixing part 32 is in the fixed position, thereby fixing the electric toothbrush 10. For example, the locking part 33 can be a latch.

[0068] As an alternative implementation, the first support plate 21 of the height adjustment mechanism 2 is rotatably connected to the second fixing part 32, and the locking part 33 is provided on the first support plate 21 and / or the second fixing part 32. The first support plate 21 is provided with the aforementioned receiving groove, or the first support plate 21 and the second fixing part 32 together enclose the aforementioned receiving groove. That is, the fixing mechanism 3 does not provide the aforementioned first fixing part 31, and the first support plate 21 performs the function of the aforementioned first fixing part 31.

[0069] The length, handle shape, and brush head of the electric toothbrush 10 are all non-standard products. However, the swing amplitude testing device of this utility model can be compatible with the testing requirements of electric toothbrushes 10 with different swing amplitudes, lengths, and load requirements. It has high compatibility and applicability, and its structure is simple, reliable, and easy to operate.

[0070] The testing method of the swing amplitude testing device of this utility model is as follows:

[0071] 1. Install the optical reflective element 52 on the vibrating end 101 of the electric toothbrush 10;

[0072] 2. Fix the electric toothbrush 10 to the fixing mechanism 3: Specifically, first place the electric toothbrush 10 on the fixing mechanism 3 and make the optical reflecting element 52 face the optical emitting element 51; turn on the switch button 55 and rotate the electric toothbrush 10 so that the optical emitting element 51 is perpendicularly incident on the optical reflecting element 52, and the light spot reflected back by the optical reflecting element 52 falls into the center origin of the first scale 54; use the second fixing part 32 and the locking part 33 to fix the electric toothbrush 10 to the first fixing part 31.

[0073] 3. Start the electric toothbrush 10 and adjust it to the test setting to begin the test. The load mechanism 4 is gently placed on the bristles to simulate the brushing force. The optical reflective element 52 swings with the high speed of the electric toothbrush 10, reflecting the light beam and forming a reflected light beam extending along the second direction Y on the first scale 54. The length L of the reflected light beam is obtained on the first scale 54, and the distance H between the optical reflective element 52 and the optical emitting element 51 (light source emission point) is obtained on the second scale 28. Thus, the swing amplitude of the electric toothbrush 10 is obtained according to the above calculation formula.

[0074] In step 2, if it is found that the light beam cannot reach the optical reflective element 52 before the test is started, the position of the optical emitting element 51 can be adjusted by the first strip hole 11, the second strip hole 12 and the second connector 53.

[0075] In step 3, if the swing amplitude of the electric toothbrush 10 is found to be small during the test, the height of the electric toothbrush 10 is readjusted using the height adjustment mechanism 2 (raising the height of the electric toothbrush 10) to obtain a longer reflected light length L, thereby improving test accuracy. If the swing amplitude of the electric toothbrush 10 is found to be large during the test, exceeding the scale range of the first scale 54, the height of the electric toothbrush 10 is readjusted using the height adjustment mechanism 2 (lowering the height of the electric toothbrush 10) to obtain a suitable reflected light length L, ensuring that the reflected light falls within the measurement range of the first scale 54, guaranteeing test accuracy, and better accommodating the testing needs of electric toothbrushes with large swing amplitudes.

[0076] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A wobble test device for performing a wobble test on an electric toothbrush (10), characterized by include: Base (1); A height adjustment mechanism (2) is disposed on the base (1); the height adjustment mechanism (2) includes a first support plate (21), the first support plate (21) being adjustable in position along the height direction (Z); A fixing mechanism (3) is disposed on the first support plate (21); the fixing mechanism (3) is used to fix the electric toothbrush (10); A load mechanism (4) is disposed on the base (1); the electric toothbrush (10) has a vibrating end (101); the load mechanism (4) is used to apply a load to the vibrating end (101); An optical inspection mechanism (5) includes an optical emitting element (51) and an optical reflecting element (52); the optical emitting element (51) is disposed on the base (1), and the optical reflecting element (52) is used to be installed on the vibration end (101); along the height direction (Z), the optical reflecting element (52) is disposed opposite to the optical emitting element (51).

2. The swing test device of claim 1, wherein, The height adjustment mechanism (2) also includes a second support plate (22) and an adjustment locking structure; The second support plate (22) is disposed on the base (1) and is spaced apart from the first support plate (21) in the height direction (Z); the adjusting locking structure is connected between the first support plate (21) and the second support plate (22); the adjusting locking structure is used to adjust the position of the first support plate (21) along the height direction (Z) and limit the first support plate (21) to the target position.

3. The swing test device of claim 2, wherein, The adjusting locking structure includes an adjusting member (23); the adjusting member (23) passes through the first support plate (21) along the height direction (Z) and is threadedly connected to the first support plate (21), and the adjusting member (23) abuts against the second support plate (22).

4. The swing test device of claim 3, wherein, The adjusting locking structure includes a first connector (24) and a fastener (25); along the height direction (Z), one end of the first connector (24) is connected to one of the first support plate (21) and the second support plate (22), and the other end is slidably connected to the other of the first support plate (21) and the second support plate (22); the fastener (25) is threadedly connected to the other of the first support plate (21) and the second support plate (22), and is adapted to abut or disengage from the first connector (24).

5. The swing test device of claim 4, wherein, The height adjustment mechanism (2) includes a guide (26) along the height direction (Z). One end of the guide (26) is connected to one of the first support plate (21) and the second support plate (22), and the other end is slidably connected to the other of the first support plate (21) and the second support plate (22).

6. The swing amplitude testing device according to any one of claims 1-5, characterized in that, The optical detection mechanism (5) is located on one side of the fixing mechanism (3) along the first direction (X); the optical emitting element (51) is adjustablely disposed on the base (1) along the first direction (X); The first direction (X) is perpendicular to the height direction (Z).

7. The swing test device of claim 6, wherein, The optical detection mechanism (5) further includes a second connector (53), and the optical emitting element (51) is mounted on the second connector (53); The base (1) is provided with a first strip hole (11) and a second strip hole (12) extending along the first direction (X); the optical emitting element (51) passes through the first strip hole (11), and the second connector (53) is tunably connected to the second strip hole (12).

8. The swing test device of claim 6, wherein, The optical detection mechanism (5) further includes a first scale (54), which is located on the base (1) and sleeved on the optical emitting element (51); the first scale (54) is used to mark the size of the reflected light of the optical reflecting element (52) in the second direction (Y); The second direction (Y) is perpendicular to both the height direction (Z) and the first direction (X).

9. The swing test device according to any one of claims 1-5, characterized in that, The load mechanism (4) includes a support (41), a load application member (42), and a counterweight (43); the support (41) is disposed on the base (1); the load application member (42) is slidably connected to the support (41) along the height direction (Z); along the height direction (Z), the top of the load application member (42) is used to place the counterweight (43), and the bottom is used to apply a load to the vibration end (101).

10. The swing test device of claim 9, wherein, include: The support (41) is provided with a second scale (28), which is located on one side of the fixing mechanism (3) along the second direction (Y); the second scale (28) is used to mark the position of the fixing mechanism (3) in the height direction (Z); The second direction (Y) is perpendicular to the height direction (Z).

11. The swing test device of any one of claims 1-5, wherein, The fixing mechanism (3) includes: The first fixing part (31) is connected to the first support plate (21); The second fixing part (32) is rotatably connected to the first fixing part (31); a receiving groove is provided between the first fixing part (31) and the second fixing part (32); the second fixing part (32) has a fixed position that covers the first fixing part (31) and an open position that exposes the receiving groove; A locking part (33) is provided on the first fixing part (31) and / or the second fixing part (32); the locking part (33) is used to lock the first fixing part (31) and the second fixing part (32) when the second fixing part (32) is in the closed position.

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