WO2014063473A1

WO2014063473A1 - Fully automatic toothbrush

Info

Publication number: WO2014063473A1
Application number: PCT/CN2013/074184
Authority: WO
Inventors: 冯桂芬; 于航
Original assignee: Feng Guifen; Yu Hang
Priority date: 2012-10-22
Filing date: 2013-04-15
Publication date: 2014-05-01
Also published as: CN102885656B; CN102885656A

Abstract

A fully automatic toothbrush, comprising a support (1), a travel motor (2) installed on the support (1), a worm (22) connected with the output shaft of the travel motor (2), and an upper worm wheel (23) and a lower worm wheel (24) both pivoted on the support (1); the upper worm wheel (23) and the lower worm wheel (24) are respectively located on the upper and lower sides of the worm (22), and are respectively engaged with the worm (22); the support (1) is provided with an upper tooth brush assembly (3) in the width direction on the two sides of the upper end respectively; the upper worm wheel (23) is located between the two upper tooth brush assemblies (3); the support (1) is provided with a lower tooth brush assembly (5) in the width direction on the two sides of the lower end respectively; and the lower worm wheel (24) is located between the two lower tooth brush assemblies (5). With the design of the travel motor (2), the worm (22), the upper worm wheel (23) and the lower worm wheel (24), the fully automatic toothbrush can automatically move left and right in the mouth without manual driving, and automatically realize longitudinal and transverse tooth brushing actions, thus improving the cleaning effect.

Description

Automatic toothbrush

Technical field

The present invention relates to the field of toothbrushes, and in particular to fully automatic toothbrushes.

Background technique

With the continuous improvement of people's living standards, automatic toothbrushes have become popular. Automated toothbrushes on the market generally include a handle and a brush head mounted on the handle. This automatic toothbrush deeply cleans the teeth by utilizing the rotational movement of the brush head. However, when performing the lateral brushing action, the hand grip handle must be used to manually move the toothbrush to move left and right, which may cause fatigue of the hand.

Summary of the invention

In view of the deficiencies of the prior art, the object of the present invention is to provide a fully automatic toothbrush, which can facilitate the automatic left and right movement of the fully automatic toothbrush in the oral cavity by adopting the design of the traveling motor, the worm, the upper worm wheel and the lower worm wheel, without Manually, to eliminate the fatigue of the arm.

To achieve the above object, the present invention adopts the following technical solutions:

The automatic toothbrush comprises a bracket, a traveling motor mounted on the bracket, a worm coupled to the output shaft of the traveling motor, an upper worm wheel pivoted on the bracket and a lower worm wheel; the upper worm wheel and the lower worm wheel are respectively located on the upper and lower sides of the worm And respectively engaging with the worm; an upper tooth brush assembly is disposed on each side of the upper end of the bracket in the width direction, the upper worm wheel is located between the two upper tooth brush assemblies, and the lower end of the bracket is disposed on both sides in the width direction a lower tooth brush assembly, the lower worm wheel is located between the two lower tooth brush assemblies; the central axes of the upper worm wheel and the lower worm wheel are parallel and extend along the width direction of the bracket; the upper end of the upper worm wheel has at least a portion of the teeth protruding Yu Outside the bracket, at least a portion of the teeth of the lower end of the lower worm wheel protrude outside the bracket.

The upper and lower toothbrush assemblies each include a closed conveyor belt, the outer surface of which is provided with bristles; and the carriage is provided with driving means for driving the rotation of the conveyor belt.

The driving device includes a driving motor mounted on the bracket and a driving gear coupled to the output shaft of the driving motor; a central axis of the driving gear extends along a length direction of the bracket; the upper and lower toothbrush assemblies respectively include a fixed frame, a driving gear and a driven gear pivotally connected to the fixed frame, and a transmission chain wound around the driving gear and the driving gear; the conveying belt is wound around the driving gear and the driven gear.

The fixing frame comprises two vertical frames and two fixed shafts distributed along the height direction; any fixed shaft is connected between the two vertical frames, and the driven gear and the driving gear are respectively mounted on the two fixed shafts.

The outer side of the vertical frame is provided with a positioning flange extending outwardly, and the bracket is provided with four sets of mounting components, and the mounting assembly comprises a pair of oppositely disposed mounting brackets, and the mounting bracket is provided with Position the flange to match the groove.

The fully automatic toothbrush comprises two sets of driving devices, the two sets of driving devices are respectively arranged at the front and rear ends of the bracket, the transmission chain of the upper tooth brush assembly on the left side and the transmission of the lower tooth brush assembly on the right side. The chains are respectively mounted on the drive gears at the front end; the drive chain of the upper toothbrush assembly on the right side and the drive chain of the lower tooth brush assembly on the left side are respectively mounted on the drive gears at the rear end.

The automatic toothbrush further includes a control connecting device, wherein the two driving motors and the traveling motor are respectively electrically connected to the control connecting device; the control connecting device is a controller or a collecting line Cry.

The fully automatic toothbrush further includes an outer casing including side covers respectively provided on both sides in the width direction of the bracket, the side covers being mounted on the outer sides of the upper and lower toothbrush assemblies on the same side thereof.

An upper tooth cavity is formed between the two upper tooth brush assemblies, and a lower tooth cavity is formed between the two lower tooth brush assemblies.

The beneficial effects of the invention are:

1. By adopting the design of the traveling motor, the worm, the upper worm wheel and the lower worm wheel, it is convenient to realize the automatic left and right movement of the automatic toothbrush in the oral cavity, without manual driving, eliminating the fatigue of the arm;

2. It can automatically realize the vertical brushing action and the lateral brushing action, which is convenient for improving the cleaning effect and improving the health of people's teeth;

3. By adopting the design of the outer casing, the bristles can be prevented from directly contacting the inner wall of the oral cavity, thereby improving the comfort.

DRAWINGS

Figure 1 is a schematic view showing the state of use of the automatic toothbrush of the present invention;

2 is an exploded perspective view of the automatic toothbrush of the present invention;

3 is a schematic view showing the mounting state of the bracket, the lower tooth brush assembly and the upper tooth brush assembly of the automatic toothbrush according to the present invention;

Figure 4 is a plan view of Figure 3;

Figure 5 is an exploded perspective view of the bracket and the driving device of the fully automatic toothbrush;

6 is a schematic structural view of a lower tooth brush assembly of a fully automatic toothbrush; Figure 7 is a schematic view of the internal structure of Figure 6;

Among them, 1, the bracket; 11, the embedded frame; 12, the outer casing; 2, the travel motor; 21, the travel motor cover; 22, the worm; 23, the upper worm wheel; 24, the lower worm wheel; 25, the carrier; 26, the transmission chain 3, upper tooth brush assembly; 31, conveyor belt; 32, bristles; 33, intermediate gear; 34, drive gear; 35, driven gear; 36, hooking parts; 37, stand; 371, positioning flange; 38, support frame; 39, driven thin gear; 5, lower tooth brush assembly; 61, drive motor; 62, drive motor cover; 63, drive gear; 7, controller; 81, upper row of teeth; 82, lower row tooth.

detailed description

The present invention will be further described in conjunction with the accompanying drawings and specific embodiments in order to provide a more clear understanding of the technical idea claimed.

1, 2, 3, and 4 are schematic structural views of the automatic toothbrush of the present invention, wherein the X direction of Fig. 3 is the width direction of the bracket 1, the Y direction is the longitudinal direction of the bracket 1, and the Z direction is the height direction of the bracket 1. The fully automatic toothbrush comprises a bracket 1, a travel motor 2 mounted on the bracket 1, a worm 22 coupled to the output shaft of the travel motor 2, an upper worm wheel 23 and a lower worm wheel 24 pivotally connected to the bracket 1; the upper worm wheel 23 and the lower The worm gears 24 are respectively located on the upper and lower sides of the worm 22, and respectively mesh with the worm 22; the upper end of the bracket 1 is provided with an upper tooth brush assembly 3 on both sides in the width direction, and the upper worm wheel 23 is located on the two upper tooth brush assemblies 3 Between the two sides of the lower end of the bracket 1 in the width direction, a lower tooth brush assembly 5 is disposed, and the lower worm gear 24 is located between the two lower tooth brush assemblies 5; between the two upper tooth brush assemblies 3 An upper tooth chamber is formed for placement of the upper teeth 81. A lower tooth cavity is formed between the two lower toothbrush assemblies 5 for placement of the lower row of teeth 82. The central axes of the upper worm wheel 23 and the lower worm wheel 24 are parallel, and Extending along the width direction of the bracket 1, at least a part of the teeth of the upper worm wheel 23 protrudes from the bracket 1 , and at least a part of the teeth of the lower end of the lower worm wheel 24 protrudes from the bracket 1 . In use, the toothpaste is first squeezed onto the upper toothbrush assembly 3 and the lower toothbrush assembly 5, and then the fully automatic toothbrush is placed in the inlet cavity. At this time, the upper tooth 81 is placed between the two upper toothbrush assemblies 3. And slightly pressed on the upper worm wheel 23, the lower row of teeth 82 is placed between the two lower toothbrush assemblies 5 and slightly pressed down the worm wheel 24, the mouth is naturally closed, by using the travel motor 2 can facilitate the rotation of the worm 22, and utilize The worm 22 drives the upper worm wheel 23 and the lower worm wheel 24 to rotate, so that the upper worm wheel 23 and the lower worm wheel 24 move in the same direction in the upper row 81 and the lower row 82, respectively, thereby driving the automatic toothbrush to move left and right in the mouth, The teeth are brushed laterally. During the movement of the fully automatic toothbrush, the inner and outer teeth of the tooth can be cleaned by the two upper toothbrush assemblies 3 and the two lower toothbrush assemblies 5 to ensure the cleaning effect. Since the movement of the automatic toothbrush does not require manual operation, it is easy to eliminate the fatigue of the arm; and, since it does not need to hold the handle of the hand, it can also be used for cooking breakfast, reading, or brushing while brushing teeth. In order to save time and improve efficiency.

Specifically, the output shaft of the traveling motor 2 passes through a predetermined through hole of the bracket 1 and is coupled to the worm 22 . A travel motor cover 21 is also fixed to the bracket 1, and the travel motor cover 21 is covered on the travel motor 2 to fix and protect the travel motor 2. The fully automatic toothbrush further includes a carrier 25 having a "mouth" shape with a fracture. The upper beam of the carrier 25 sequentially passes through the through holes of the bracket 1 and the through holes of the upper worm wheel 23, so that the upper worm wheel 23 can rotate relative to the upper beam of the carrier 25. The lower worm wheel 24 is mounted on the lower beam of the carrier 25. After the worm wheel 23, the lower worm wheel 24, and the carrier 25 are installed, the two ends of the carrier 25 are fixed by welding or crimping. Preferably, the fully automatic toothbrush further comprises a control connection device, the control connection device being electrically connected to the travel motor 2; the control connection device being the controller 7. The opening and closing of the traveling motor 2 can be easily controlled by using the controller 7. Moreover, the travel motor 2 can be controlled by the controller 7 to perform periodic forward and reverse rotations, and the forward rotation and the reverse rotation can be alternately performed in sequence, thereby controlling the automatic toothbrush to reciprocate in the oral cavity, thereby improving the convenience thereof. Sex. Of course, the control connection device can also adopt a hub, and in use, by plugging the USB interface of the hub into a computer or other electronic device, the programming software can be used to control the automatic toothbrush to move, and the same can be improved. Its convenience.

In the actual design, as shown in FIG. 4, the extending path of the upper tooth brush assembly 3 and the lower tooth brush assembly 5 in the longitudinal direction is set to be curved to match the shape of the tooth row, thereby improving the comfort. Preferably, as shown in FIGS. 6 and 7, the upper toothbrush assembly 3 and the lower toothbrush assembly 5 each include a closed conveyor belt 31, and the outer surface of the conveyor belt 31 is provided with bristles 32. The conveyor belt 31 is a soft material, and the bristles 32 are integrally formed with the conveyor belt 31. A drive for driving the rotation of the conveyor belt 31 is provided on the bracket 1. As shown in FIG. 5, the driving device includes a driving motor 61 mounted on the bracket 1, and a driving gear 63 connected to the output shaft of the driving motor 61; the central axis of the driving gear 63 extends along the longitudinal direction of the bracket 1; The upper brush assembly 3 and the lower tooth brush assembly 5 each include a fixed frame, a driving gear 34 and a driven gear 35 pivotally connected to the fixed frame, and a transmission chain 26 wound around the driving gear 34 and the driving gear 63. The driving gear 34 and the driven gear 35 are arranged along the height direction of the bracket 1, and the conveyor belt 31 is wound around the driving gear 34 and the driven gear 35. According to common general knowledge, the inner surface of the conveyor belt 31 is provided with internal teeth to facilitate cooperation with the driving gear 34 and the driven gear 35. When in use, start the drive motor 61 so that the belt The driving gear 63 rotates, and the driving gear 26 drives the driving gear 34 to rotate, so that the conveyor belt 31 rotates under the driving, so that the teeth 32 are longitudinally brushed by the bristles 32. Since the automatic toothbrush can automatically realize the vertical brushing action and the lateral brushing action at the same time, the cleaning effect can be easily improved, and the health of the teeth can be improved.

Of course, the driving device can also adopt other structures, such as a driving motor 61 mounted on the bracket 1 and a multi-stage gear set connected to the output shaft of the driving motor 61. The transmission chain 26 is wound around the multi-stage gear set. The final stage output gear and the drive gear 34.

Preferably, the fully automatic toothbrush comprises two sets of driving devices, and the two sets of driving devices are respectively disposed at the front and rear ends of the bracket 1, that is, on both sides of the longitudinal direction of the bracket 1. Specifically, the front and rear ends of the bracket 1 are provided with a gear mounting groove for mounting the driving gear 63. The output shaft of the driving motor 61 passes through a predetermined through hole of the bracket 1 and a driving gear 63 corresponding thereto. Join. A drive motor cover 62 is fixed to the bracket 1 by snapping or welding, and the drive motor cover 62 is covered on the drive motor 61 to fix and protect the drive motor 61. The drive chain 26 of the upper toothbrush assembly 3 on the left side and the drive chain 26 of the lower toothbrush assembly 5 on the right side are mounted on the drive gear 63 at the front end, respectively, and the upper tooth brush assembly 3 on the right side. The drive chain 26 and the drive chain 26 of the lower toothed brush assembly 5 on the left are mounted on the drive gear 63 at the rear end, respectively. By controlling the rotational directions of the two drive motors 61 separately, it is convenient to control the upper and lower toothbrush assemblies 3 and 5 to rotate in different directions. As shown in FIG. 3, in the actual design, the conveyor belt 31 for controlling the upper toothbrush assembly 3 is rotated from top to bottom, and the conveyor belt 31 for controlling the lower toothbrush assembly 5 is rotated from bottom to top to achieve optimum. Cleaning effect.

Of course, in order to save costs, the fully automatic toothbrush can use only one set of driving devices. The drive chain 26 of the upper and lower toothbrush assemblies 3 and 5 is mounted on the drive gear 63 of the set of drives. In addition to this, four sets of driving means can be employed, and the drive chain 26 of the upper tooth brush assembly 3 and the lower tooth brush assembly 5 respectively correspond to the four sets of drive means. Of course, three or more sets of driving devices are also provided according to actual needs, but the two sets of driving devices are the optimal solutions of the present invention, which can reduce the cost and achieve a good cleaning effect.

The two drive motors 61 are electrically connected to the control connection device, that is, the two drive motors 61 and the travel motor 2 are electrically connected to the control connection device, respectively. According to common knowledge, if the fully automatic toothbrush has more than two drive means, more than two drive motors 61 are electrically connected to the control connection means. By adopting the above structure, it is possible to easily control the opening and closing of each of the drive motors 61 and the rotational direction of each of the drive motors 61.

As shown in FIG. 7, the fixing frame includes two vertical frames 37 and two fixed shafts distributed along the height direction; any fixed shaft is connected between the two vertical frames 37, and the driven gear 35 and the driving gear 34 are respectively mounted on Two fixed axles. Preferably, the fixing frame further comprises a support frame 38, which is formed in a "mouth" shape with a fracture, and the two fixed shafts are upper and lower beams of the support frame 38. After the support frame 38 is mounted on the stand 37, the two ends of the support frame 38 are joined together by welding or crimping. The driven gear 35 and the driving gear 34 are located at the same end of the two fixed shafts, and the other ends of the two fixed shafts are pivotally connected with the driven thin gear 39, and one side of the conveyor belt 31 is wound around The movable gear 35 and the driving gear 34 are wound around the other driven thin gears 39 to improve the stability of the movement of the conveyor belt 31. In order to further improve the stability of motion, the middle of the fixed shaft An intermediate gear 33 is also pivotally connected, and a central portion of the conveyor belt 31 is wound around the intermediate gear 33. In order to improve its structural stability, the fixing frame further includes two hooking members 36. The upper end of the hooking member 36 is fastened on the upper fixed shaft, and the lower end is fastened to the lower fixed shaft; and the two hooking members 36 are disposed on both sides of the intermediate gear 33. By using the design of the hooking member 36, the mounting position of the intermediate gear 33 can also be restricted.

The outer side of the stand 37 is provided with a positioning flange 371 extending outwardly, and the bracket 1 is provided with four sets of mounting assemblies. Specifically, the bracket 1 includes a base beam portion in the form of a strip, and the drive motor 61, the travel motor 2, the upper worm wheel 23, and the lower worm wheel 24 are all mounted on the base beam portion. And two sets of mounting assemblies are disposed at the upper end of the base beam portion and extend upward; and the other two sets of mounting assemblies are disposed at the lower end of the base beam portion and extend downward. The mounting assembly includes a pair of oppositely disposed mounting brackets 1 1 having recesses that mate with the positioning flanges 371. During installation, it is convenient to insert the two vertical frames 37 at the two ends of the upper toothbrush assembly 3 into the pair of inserting frames 1 1 of the mounting assembly, and fix them by welding. The lower tooth brush assembly 5 is mounted in the same manner as described above, and will not be repeatedly described herein.

Of course, the fixing of the stand 37 and the insert frame 1 1 can be fixed by using an interference fit of the groove and the positioning flange 371 in addition to the welding method. Further, an adhesive may be applied between the groove and the positioning flange 371 to achieve adhesive bonding.

The fully automatic toothbrush further includes a housing 12 including side covers respectively disposed on both sides in the width direction of the bracket 1, the side covers being disposed on the upper and lower toothbrush assemblies 3 and 2 on the same side thereof The outer side of 5. By adopting the design of the outer casing 12, the bristles 32 can be prevented from coming into direct contact with the inner wall of the oral cavity, thereby improving the comfort. The parts of the fully automatic toothbrush are easy to install, which is beneficial to industrial mass production. Various other modifications and changes can be made by those skilled in the art in light of the above-described technical solutions and concepts, and all such changes and modifications are intended to fall within the scope of the appended claims.

Claims

claims

1. Fully automatic toothbrush, characterized by: including a bracket, a traveling motor installed on the bracket, a worm connected to the output shaft of the walking motor, and an upper worm gear and a lower worm gear pivoted on the bracket; the upper worm gear and the lower worm gear are respectively Located on the upper and lower sides of the worm, and meshing with the worm respectively; an upper tooth brush assembly is provided on each side of the upper end of the bracket in the width direction, the upper worm wheel is located between the two upper tooth brush assemblies, and the width of the lower end of the bracket There are lower tooth brush assemblies on each side of the direction, and the lower worm gear is located between the two lower tooth brush assemblies; the central axes of the upper worm gear and the lower worm gear are parallel and extend along the width direction of the bracket; the upper worm gear At least some of the teeth at the upper end protrude from the bracket, and at least some of the teeth at the lower end of the lower worm gear protrude from the bracket.

2. The fully automatic toothbrush according to claim 1, characterized in that: the upper tooth brush assembly and the lower tooth brush assembly each include a closed conveyor belt, and bristles are provided on the outer surface of the conveyor belt; a bracket There is a driving device for driving the conveyor belt to rotate.

3. The fully automatic toothbrush according to claim 2, characterized in that: the driving device includes a driving motor installed on the bracket and a driving gear connected to the output shaft of the driving motor; the central axis of the driving gear is along the axis of the bracket Extending in the length direction; the upper tooth brush assembly and the lower tooth brush assembly both include a fixed frame, a driving gear and a driven gear pivoted on the fixed frame, and a transmission chain wound around the driving gear and the driving gear; the The conveyor belt is wound around the driving gear and the driven gear.

4. The fully automatic toothbrush according to claim 3, characterized in that: the fixed frame includes two vertical frames and two fixed shafts distributed along the height direction; any fixed shaft is connected between the two vertical frames, and the driven The gear and the driving gear are respectively installed on two fixed shafts.

5. The fully automatic toothbrush according to claim 4, characterized in that: the outer side of the stand is provided with an outwardly extending positioning flange, the bracket is provided with four sets of installation components, the installation The assembly includes a pair of oppositely arranged embedded brackets, and the embedded brackets are provided with grooves matching the positioning flanges.

6. The fully automatic toothbrush according to claim 3, characterized in that: the fully automatic toothbrush includes two sets of driving devices, and the two sets of driving devices are respectively arranged at the front and rear ends of the bracket, located on the upper left side. The transmission chain of the tooth brush assembly and the transmission chain of the lower tooth brush assembly on the right are respectively installed on the driving gear at the front end; while the transmission chain of the upper tooth brush assembly on the right and the lower tooth brush assembly on the left The transmission chains are respectively installed on the drive gears located at the rear end.

7. The fully automatic toothbrush according to claim 6, characterized in that: the fully automatic toothbrush further includes a control connection device, the two drive motors and the walking motor are electrically connected to the control connection device respectively; the control connection device is controller or hub.

8. The fully automatic toothbrush according to claim 1, characterized in that: the fully automatic toothbrush further includes a shell, the shell includes side covers respectively arranged on both sides of the bracket in the width direction, and the side covers are installed on the same side as the bracket. The outer sides of the upper tooth brush assembly and the lower tooth brush assembly.

9. The fully automatic toothbrush according to claim 1, characterized in that: an upper tooth cavity is formed between the two upper tooth brush assemblies, and a lower tooth cavity is formed between the two lower tooth brush assemblies.