Cleaning assembly and transmission structure

Abstract

The embodiment of the utility model discloses a transmission structure, which is used for oral cavity cleaning equipment and comprises a cleaning component, the outer side of the cleaning component is used for being connected with a functional element, the inner side of the cleaning component is provided with a turntable, and the turntable is provided with a rotating element deviating from the center of the cleaning component and a rotating shaft located in the center of the cleaning component; the motion transmission element comprises a near end connected with a transmission mechanism of the oral cavity cleaning equipment and a far end matched with the rotating element, and the far end is eccentrically arranged relative to the longitudinal axis of the near end; when the transmission mechanism drives the motion transmission element to move, the far end does diameter-variable reciprocating motion relative to the center of the rotating disc, and the rotating element drives the cleaning assembly to swing in a reciprocating mode.

Description

Technical Field

[0001] The utility model relates to the technical field of toothbrushes, in particular to a cleaning component and a transmission structure. Background Art

[0002] Electric toothbrushes are a common oral cleaning tool today and are mainly divided into sonic toothbrushes and rotary toothbrushes. Sonic brush heads use high-frequency left-right swinging to achieve vibration cleaning, while rotary brush heads use high-frequency left-right rotation to achieve efficient cleaning, with better cleaning effects.

[0003] The common rotary electric toothbrushes on the market are driven to the brush handle through a transmission mechanism that swings eccentrically left and right, and then from the brush handle to the brush head via multiple components. Multiple structures need to be assembled and coordinated, which not only increases the difficulty of assembly and production, but also easily leads to poor consistency in the swing of the brush head. After long-term use, the gap between the accessories increases, which can also cause noise to increase and swing to attenuate, affecting the cleaning effect and user experience. Summary of the invention

[0004] In view of this, the utility model provides a cleaning component and a transmission structure, which are used to solve the problem that the electric toothbrush in the prior art has poor consistency and is easy to affect the cleaning effect and user experience after long-term use.

[0005] In order to achieve one or part or all of the above-mentioned purposes or other purposes, the present application proposes a cleaning component for use in an oral cleaning device, wherein the outer side of the cleaning component is used to connect functional elements, and a turntable is provided on the inner side. The turntable is provided with a rotating element deviating from the center of the cleaning component and a rotating shaft located at the center of the cleaning component. The rotating element is an elliptical rotating groove or a fixed rod arranged on the turntable.

[0006] Furthermore, the turntable is provided with a longitudinally opened accommodating groove.

[0007] In order to achieve one, part or all of the above purposes or other purposes, the present application also proposes a transmission structure for an oral cleaning device, comprising:

[0008] A cleaning component, the outer side of which is used to connect the functional element, and the inner side is provided with a turntable, the turntable is provided with a rotating element deviating from the center of the cleaning component and a rotating shaft located at the center of the cleaning component; and,

[0009] A motion transmission element, comprising a proximal end connected to a transmission mechanism of the oral cleaning device and a distal end adapted to the rotating element, wherein the distal end is eccentrically arranged relative to a longitudinal axis of the proximal end;

[0010] When the transmission mechanism drives the motion transmission element to move, the distal end performs a reciprocating motion with a variable diameter relative to the center of the turntable, and the rotating element drives the cleaning component to swing back and forth.

[0011] Furthermore, the rotating element is an elliptical rotating groove, the distal end is a movable rod, and the movable rod is adaptively connected to the rotating groove.

[0012] Furthermore, the rotating element is a fixed rod arranged on the rotating disk, the distal end is a rotating hole, and the fixed rod is adaptively connected to the rotating hole.

[0013] Furthermore, the turntable is in the shape of a cam, the rotating element is arranged at one end of the pointed corner of the cam, and a longitudinally opened accommodating groove is arranged on the side of one end of the rounded corner of the cam.

[0014] Furthermore, the magnetic adsorption force of the proximal end of the motion transfer element is between 3.5N and 35N.

[0015] Furthermore, the length of the ellipse is 2 mm, and the movable space of the movable rod is between 2 mm and 4 mm from the center of the cleaning component.

[0016] Furthermore, the maximum reciprocating motion stroke of the motion transfer element in the longitudinal direction is 1-5 mm, and the rotation angle of the cleaning component is between -38° and 38°.

[0017] Furthermore, at least the proximal end of the motion transfer element is integrally formed.

[0018] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0019] With the transmission structure provided by the utility model, when the distal end of the motion transmission element moves longitudinally back and forth, it can drive the rotating element to move. The transmission mechanism transmits the motion to the turntable through the motion transmission element. The entire transmission process has fewer parts and less energy loss in the transmission process. Even if it is used for a long time, the noise and swing amplitude will not be greatly affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] in:

[0022] Figure 1A schematic structural diagram of an embodiment of a cleaning component proposed in this application;

[0023] Figure 2 A side view of an embodiment of the oral cleaning device proposed in the present application;

[0024] Figure 3 for Figure 2 Sectional view of section AA;

[0025] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0026] Figure 5 A cross-sectional view of another cross section of an embodiment of the oral cleaning device proposed in the present application;

[0027] Figure 6 A schematic diagram of the structure of an embodiment of the oral cleaning device proposed in the present application does not show the housing;

[0028] Figure 7 A schematic diagram of the working state of an embodiment of the oral cleaning device proposed in the present application without showing the housing;

[0029] Figure 8 A schematic diagram of the housing structure of another embodiment of the oral cleaning device proposed in this application;

[0030] Fig. 9 A structural schematic diagram of another embodiment of the oral cleaning device proposed in the present application does not show the housing;

[0031] Fig.10 A structural schematic diagram of another embodiment of the oral cleaning device proposed in the present application does not show the housing;

[0032] Fig.11 This is a cross-sectional view of an embodiment of the oral cleaning device proposed in the present application.

[0033] Reference numerals:

[0034] 1. Shell; 12. Limiting groove; 13. Guide ring;

[0035] 2. motion transmission element; 21. movable rod; 211. extension column; 22. rotation hole;

[0036] 3. Cleaning assembly; 31. Functional element; 32. Turntable; 321. Rotation slot; 322. Accommodation slot; 33. Limiting structure; 34. Rotation shaft; 35. Fixing rod;

[0037] 4. Handle;

[0038] 5. Transmission mechanism; 51. Driving gear; 52. Driven gear; 53. Transmission rod; 54. Sleeve; 55. Eccentric column; 56. Rotating shaft;

[0039] 6. Motor;

[0040] 7. Battery. DETAILED DESCRIPTION

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0044] Reference Figure 1 The present application proposes a cleaning component for an oral cleaning device, wherein the outer side of the cleaning component is used to connect a functional element, and the inner side is provided with a turntable, and the turntable is provided with a rotating element deviating from the center of the cleaning component and a rotating shaft located at the center of the cleaning component, and the rotating element is an elliptical rotating groove or a fixed rod provided on the turntable. The turntable is provided with a receiving groove with a longitudinal opening.

[0045] In this embodiment, the cleaning component can be a circular plate. Taking the oral cleaning device as an electric toothbrush as an example, the outer side is connected to the side of the toothbrush bristles, and the inner side is the opposite side of the outer side. In this case, the toothbrush bristles are the functional elements. For more explanation, please refer to the subsequent embodiments. The turntable is provided with a rotating element deviating from the center of the cleaning component and a rotating shaft located at the center of the cleaning component. The rotating shaft is used to position the cleaning component on the electric toothbrush housing. For specific applications, please refer to the subsequent embodiments. The rotating element deviating from the center of the cleaning component can be used to cooperate with the motion transmission element to achieve reciprocating rotation of the cleaning component through the motion transmission element.

[0046] Reference Figure 4 , Figure 6 , Figure 7 and Fig. 9 The present application also proposes a transmission structure for an oral cleaning device, comprising:

[0047] A cleaning component, the outer side of which is used to connect the functional element, and the inner side is provided with a turntable, the turntable is provided with a rotating element deviating from the center of the cleaning component and a rotating shaft located at the center of the cleaning component; and,

[0048] A motion transmission element, comprising a proximal end connected to a transmission mechanism of the oral cleaning device and a distal end adapted to the rotating element, wherein the distal end is eccentrically arranged relative to a longitudinal axis of the proximal end;

[0049] When the transmission mechanism drives the motion transmission element to move, the distal end performs a reciprocating motion with a variable diameter relative to the center of the turntable, and the rotating element drives the cleaning component to swing back and forth.

[0050] In this embodiment, the structure of the cleaning assembly is the same as that of the above embodiment, and the motion transmission element is as follows: Figure 6 or Figure 7 As shown, it can also be Fig.10 As shown. That is, the rotating element is an elliptical rotating groove, the distal end is a movable rod, and the movable rod is adapted to connect with the rotating groove. Alternatively, the rotating element is a fixed rod arranged on the rotating disk, the distal end is a rotating hole, and the fixed rod is adapted to connect with the rotating hole. For more details, please refer to the subsequent description of the embodiment of the oral cleaning device.

[0051] Reference Figures 2 to 7 , the present application proposes an oral cleaning device, comprising a housing 1, a motion transmission element 2 and a cleaning component 3;

[0052] The cleaning component 3 is movably connected to one end of the housing 1, and a functional element 31 is provided on one side of the cleaning component 3. The functional element 31 can be Figure 2 As shown, it includes multiple groups of bristles, and can also be other components, such as a tongue coating cleaner or a soft gel cleaner, etc. A turntable 32 is provided on the other side of the cleaning component 3, and a rotating element is provided on the turntable 32. The rotating element is set offset from the center of the cleaning component 3, and the distal end of the motion transmission element 2 cooperates with the rotating element. When the distal end reciprocates longitudinally, it drives the rotating element and the cleaning component 3 to swing back and forth together.

[0053] The motion transmission element 2 is arranged inside the shell 1. The proximal end of the motion transmission element 2 is used to connect with the transmission mechanism. It is cylindrical or approximately cylindrical, such as an elliptical cylinder, and the proximal end extends into the cavity of the shell. At least the proximal end is an integrally formed arrangement. The distal end of the motion transmission element 2 is an end close to the cleaning component 3, that is, it includes a movable rod 21 or a rotating hole 22 adapted to the rotating element, and a connecting rod connecting the movable rod 21 or the rotating hole 22 and the proximal end. The shortest distance from the center point of the movable rod 21 to the central axis of the proximal end is 1.5-4.5 mm, and the distance between the movable rod and the center of the cleaning component is between 2 mm and 4 mm. In addition, the distal end and the proximal end can be integrally formed in a bending manner, and on this basis, the extension column 211 can be connected to the distal end by welding or riveting.

[0054] The transmission mechanism 5 has a magnetic connection part, and the magnetic attraction force between the proximal end of the motion transmission element 2 and the magnetic connection part is set between 3.5N-35N, preferably between 3.5N-20N.

[0055] When the housing 1 is plugged into the toothbrush handle, the top of the transmission mechanism provided in the toothbrush handle is connected to the motion transmission element 2 by magnetic attraction, and drives the motion transmission element 2 to reciprocate in the longitudinal direction. The transmission mechanism can be an existing structure, which is not described here. The trajectory of the motion transmission element 2 is perpendicular to the horizontal line, so that the distal end makes a variable diameter motion relative to the center of the turntable. The lower end of the motion transmission element 2 is close to the transmission mechanism, and is symmetrically arranged with the longitudinal center axis of the cleaning component 3 as the axis. The upper end of the motion transmission element 2 gradually shifts to one side. In this embodiment, the rotating element is an elliptical rotating groove 321. The upper end of the motion transmission element 2 is provided with a movable rod 21, that is, one side projection of the motion transmission element 2 is similar to a "7" shape. The movable rod 21 is located in the rotating groove 321. When the movable rod 21 reciprocates longitudinally with the motion transmission element 2, the movable rod 21 will drive the rotating groove 321 to rotate.

[0056] The elliptical rotation groove 321 can leave enough movement space for the movable rod 21. The longitudinal movement of the movable rod 21 drives the rotation groove 321 to rotate around the center point of the cleaning component 3. The cleaning component 3 rotates together with the rotation groove 321. The rotation direction is as follows: Figure 7 As shown by the arrow Figure 7 Taking the direction shown as an example, when the motion transmission element 2 moves upward, the cleaning component 3 rotates to the right, and when the motion transmission element 2 moves downward, the cleaning component 3 rotates to the left. The transmission mechanism drives the motion transmission element 2 to move up and down at a high frequency, and the cleaning component 3 also rotates left and right at a high speed, driving the functional element 31 on the other side of the cleaning component 3 to rotate at a high speed. Taking a toothbrush as an example, teeth cleaning can be achieved.

[0057] In another embodiment, Fig.10As shown, the rotating element is a fixed rod 35 arranged on the turntable. The fixed rod 35 is eccentrically arranged and a rotating hole 22 is provided at the far end. The fixed rod 35 is located in the rotating hole 22. The rotating hole 22 is also elliptical. When the rotating hole 22 moves longitudinally, the fixed rod 35 moves horizontally in the rotating hole 22. Its working principle is similar to that of the above embodiment and will not be repeated.

[0058] In this embodiment, the orthographic projection of the turntable 32 is composed of two bows sharing a common chord. The distance between the center point of the rotating groove 321 and the center point of the cleaning component 3 is equal to the distance between the center point of the cleaning component 3 and the edge of the other side of the turntable 32. The former distance can also be slightly greater than the latter distance. The greater the former distance, the upward force is applied to the side wall of the rotating groove 321 when the movable rod 21 moves upward. The longer the torque of this force is, the smaller the force required to drive the turntable 32 to rotate, and the more labor-saving it is. At the same time, considering the size of the housing 1 and the stability of the transmission, it is preferred to make the former distance equal to the latter distance.

[0059] In this embodiment, a rotating shaft 34 is also inserted into the turntable 32. The rotating shaft 34 is arranged at the center of the cleaning component 3. One end of the rotating shaft 34 abuts against the shell 1. The rotating shaft 34 is fixed to the inside of the turntable 32 by assembly. The turntable 32 drives the cleaning component 3 to rotate around the rotating shaft 34.

[0060] A limiting structure 33 is provided on the rotating disk 32, and the limiting structure 33 is used to axially limit the cleaning component 3. Figure 5 As shown, the rotating disk 32 is provided with a longitudinally opened receiving groove 322, the housing 1 is provided with a longitudinal through hole, the limiting structure 33 is inserted into the receiving groove 322 from the through hole, and abuts against the side wall of the receiving groove 322, and the receiving groove 322 can rotate relative to the limiting structure 33. The rotating shaft 34 prevents the rotating disk 32 from moving in the horizontal or vertical direction, and the limiting structure 33 prevents the rotating disk 32 from moving along the direction in which the rotating shaft 34 extends, and the rotating disk 32 can only rotate in the circumferential direction. In this embodiment, the limiting structure 33 is a limiting pin.

[0061] In another embodiment, Figure 8 and Fig. 9As shown, the movable rod 21 has an extension column 211 extending from one end away from the cleaning component 3, and a limiting groove 12 is provided on the inner side of the housing 1. The extension column 211 is located in the limiting groove 12 and can move longitudinally in the limiting groove 12. The limiting groove 12 restricts the extension column 211, so that the motion transmission element 2 is not easy to shake, so that the distance from the rotating shaft 34 to the vertical line where the motion trajectory of the movable rod 21 is located is always fixed. In this process, the distance between the movable rod 21 and the rotating shaft 34 is a variable distance, and the maximum longitudinal motion stroke of the motion transmission element 2 is 1-5mm. Preferably, the maximum motion stroke is 1.5mm-3.5mm, and at this time, the rotation angle of the cleaning component 3 is between -38° and 38°, which can fully clean the teeth.

[0062] In addition, a guide ring 13 is fixed to the inner wall of the housing 1, and the motion transmission element 2 passes through the guide ring 13 and can reciprocate longitudinally in the guide ring 13. The guide ring 13 guides and limits the motion transmission element 2, so that the motion transmission element 2 does not deviate during the movement. In this embodiment, symmetrical clamping blocks are provided on the outer wall of the guide ring 13, and symmetrical clamping grooves are provided at corresponding positions on the inner wall of the housing 1. The clamping blocks are adapted to the clamping grooves. After clamping, the position of the guide ring 13 is fixed and will not move with the movement of the motion transmission element 2. The inner diameter of the guide ring 13 is consistent with the outer diameter of the proximal end of the motion transmission element 2, so the friction is small, the loss during the transmission process is small, and the motion transmission element 2 can be prevented from deflecting and affecting the use.

[0063] In this embodiment, the motion transmission element 2 is integrally formed. The end of the motion transmission element 2 away from the cleaning component 3 has a horizontal end surface, which can be adapted to the transmission mechanism. At least the proximal end of the motion transmission element 2 is a magnetizable metal material. In another embodiment, at least the proximal end of the motion transmission element 2 is a plastic material mixed with magnetic powder. That is, the proximal end of the motion transmission element 2 can be connected and fixed to the distal end of the transmission mechanism by magnetic attraction.

[0064] Reference Fig.11The oral cleaning tool also includes a handle 4, which is connected to the lower end of the shell 1. A transmission mechanism 5 and a motor 6 are provided inside the handle 4. The output end of the motor 6 is connected to the proximal end of the transmission mechanism 5. A battery 7 is also provided inside the handle 4. The battery 7 is located at the lower end of the motor 4 and is electrically connected to the motor 4. Specifically, the transmission mechanism 5 includes a driving gear 51, a driven gear 52 and a transmission rod 53. The driving gear 51 is sleeved on the output shaft of the motor 6 and rotates with the output shaft of the motor 6. The motor 6 is fixedly connected to the inner wall of the handle 4. The output shaft of the motor 6 is arranged in the same direction as the handle 4, specifically, it is arranged upward along the length direction of the handle 4. The driving gear 51 is horizontally rotatably connected to the output shaft of the motor 6. The driven gear 52 is a bevel gear. The driven gear 52 and the driving gear 51 are perpendicular to each other. The driven gear 52 is meshed with the driving gear 51 to convert the horizontal rotation into the vertical rotation. The transmission rod 53 is transmission-connected to the driven gear 52. The motor 6 drives the driving gear 51 to rotate horizontally and drives the driven gear 52 to rotate vertically. Then the driven gear 52 drives the transmission rod 53 to reciprocate up and down.

[0065] Specifically, a sleeve 54 is provided at the lower end of the transmission rod 53, and an eccentric column 55 is provided on the driven gear 52. The sleeve 54 is sleeved with the eccentric column 55, and the driven gear 52 is provided with a transverse rotating shaft 56. The rotating shaft 56 penetrates along the axial direction of the eccentric column 55 and passes through the bottom of the sleeve 54. Both ends of the rotating shaft 56 are rotatably connected to the inner wall of the handle 4 to rotationally support the driven gear 52. The driven gear 52 drives the eccentric column 55 to rotate around the rotating shaft 56, and the sleeve 54 swings up and down with the rotation of the eccentric column 55, thereby driving the transmission rod 53 to reciprocate up and down as a whole. The upper end of the transmission rod 53 is provided with a magnetic connecting part for magnetically connecting to the motion transmission element 2. Since the proximal end of the motion transmission element 2 is a magnetizable material, the transmission rod 53 can eventually drive the functional component 31 to swing, thereby cleaning the user's oral cavity.

[0066] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A cleaning component for an oral cleaning device, characterized in that: The outer side of the cleaning component is used to connect functional elements, and the inner side is provided with a turntable, on which a rotating element deviating from the center of the cleaning component and a rotating shaft located at the center of the cleaning component are provided. The rotating element is an elliptical rotating groove or a fixed rod arranged on the turntable.

2. The cleaning assembly according to claim 1, characterized in that: The rotating disk is provided with a receiving groove with a longitudinal opening.

3. A transmission structure for an oral cleaning device, characterized in that: include: A cleaning component, the outer side of which is used to connect the functional element, and the inner side is provided with a turntable, the turntable is provided with a rotating element deviating from the center of the cleaning component and a rotating shaft located at the center of the cleaning component; and, A motion transmission element, comprising a proximal end connected to a transmission mechanism of the oral cleaning device and a distal end adapted to the rotating element, wherein the distal end is eccentrically arranged relative to a longitudinal axis of the proximal end; When the transmission mechanism drives the motion transmission element to move, the distal end performs a reciprocating motion with a variable diameter relative to the center of the turntable, and the rotating element drives the cleaning component to swing back and forth.

4. The transmission structure according to claim 3, characterized in that: The rotating element is an elliptical rotating groove, and the distal end is a movable rod, which is adaptively connected to the rotating groove.

5. The transmission structure according to claim 3, characterized in that: The rotating element is a fixed rod arranged on the rotating disk, the distal end is a rotating hole, and the fixed rod is adaptively connected to the rotating hole.

6. The transmission structure according to claim 4 or 5, characterized in that: The rotating disk is in the shape of a cam, the rotating element is arranged at one end of the pointed corner of the cam, and a longitudinally opened accommodating groove is arranged on the side of one end of the rounded corner of the cam.

7. The transmission structure according to claim 3, characterized in that: The magnetic adsorption force at the proximal end of the motion transfer element is between 3.5N and 35N.

8. The transmission structure according to claim 4, characterized in that: The length of the oval is 2 mm, and the movable space of the movable rod is between 2 mm and 4 mm from the center of the cleaning component.

9. The transmission structure according to any one of claims 3 to 5, characterized in that: The maximum reciprocating stroke of the motion transmission element in the longitudinal direction is 1-5 mm, and the rotation angle of the cleaning component is between -38° and 38°.

10. The transmission structure according to claim 3, characterized in that: At least the proximal end of the motion transfer element is integrally formed.

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