Electric toothbrush

Abstract

The utility model relates to the technical field of toothbrushes, and discloses an electric toothbrush which comprises a handle, a power assembly, a brush head and a camera, a containing cavity is formed in the handle, and a through hole communicated with the containing cavity is formed in the handle; the power assembly is installed in the containing cavity and comprises a power output shaft, and one end of the power output shaft extends out of the containing cavity. The brush head is connected with the end, extending out of the containing cavity, of the power output shaft. An opening of the through hole faces the side, provided with bristles, of the brush head. The camera is installed in the containing cavity and seals the through hole, the camera is obliquely arranged, and a lens of the camera is opposite to the through hole, so that the camera shooting range of the camera covers at least part of bristles of the brush head. According to the utility model, images of teeth in the oral cavity of a user can be directly shot through the camera, so that the user can conveniently know the cleaning condition of the teeth, the camera cannot be influenced by replacing the brush head, and the cost is reduced. Even if the brush head vibrates, it can be guaranteed that pictures shot by the camera are clear, and the photographing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of toothbrushes, in particular to an electric toothbrush. Background Art

[0002] Electric toothbrushes are essential daily cleaning products. To help users better understand their brushing progress and check their dental health, cameras are often installed inside electric toothbrushes to capture images of the inside of the mouth. Currently, existing electric toothbrushes with cameras typically feature a hole in the back of the brush head, where the camera is embedded. However, installing the camera directly inside the brush head increases costs and reduces the need for brush head replacement. Furthermore, the brush head vibrates when in use, affecting the quality of the photos. Utility Model Content

[0003] The utility model aims to provide an electric toothbrush, which can improve the photographic effect of photographing the cleaning conditions of the teeth inside the oral cavity during the brushing process and reduce the cost.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The electric toothbrush of the utility model comprises:

[0006] A handle having an accommodating cavity therein, and a through hole communicating with the accommodating cavity is formed on the handle;

[0007] A power assembly is installed in the accommodating cavity, the power assembly includes a power output shaft, one end of the power output shaft extends out of the accommodating cavity;

[0008] a brush head connected to one end of the power output shaft extending out of the accommodating cavity, with the opening of the through hole facing the side of the brush head where the bristles are provided; and

[0009] A camera is installed in the accommodating cavity and closes the through hole. The camera is tilted and the lens of the camera is opposite to the through hole, so that the camera range covers at least part of the bristles of the brush head.

[0010] In some embodiments, the through hole has a first hole wall and a second hole wall arranged opposite to each other, and the first hole wall and the second hole wall are respectively inclined toward the lens, so that the aperture of the through hole increases from the inside of the accommodating cavity to the outside of the accommodating cavity.

[0011] In some embodiments, the angle α between the normal of the camera lens and the central axis of the power output shaft is between 17° and 27°; the field of view angle β of the camera is between 40° and 55°, and 0<β / 2-α<5°.

[0012] In some embodiments, the electric toothbrush further includes a lamp, which is disposed on a side of the camera lens facing the through hole.

[0013] In some embodiments, there are multiple lamps, and the multiple lamps are spaced apart along the circumference of the lens at the outer edge of the lens.

[0014] In some embodiments, the electric toothbrush further includes a light-transmitting member installed at the through hole to close the through hole.

[0015] In some embodiments, the electric toothbrush further includes a control mainboard and a display screen. The control mainboard is disposed in the accommodating cavity, and the display screen is mounted on the handle. The display screen and the camera are electrically connected to the control mainboard respectively.

[0016] In some embodiments, the electric toothbrush further includes a button portion, which is provided on the handle and is electrically connected to the control main board.

[0017] In some embodiments, the button portion and the through hole are arranged on the same side of the central axis of the handle.

[0018] In some embodiments, the handle includes a hand-holding portion and a connecting portion, the first end of the connecting portion is connected to the hand-holding portion, the second end of the connecting portion is connected to the brush head, the outer diameter of the connecting portion decreases from the first end to the second end, and the through hole is opened on the connecting portion.

[0019] Compared with the prior art, the electric toothbrush of the present utility model has the following advantages:

[0020] The electric toothbrush of the present invention includes a handle, a power assembly, a brush head, and a camera. The camera is installed in the accommodating cavity of the handle. The camera is tilted and the lens is opposite to the through hole of the accommodating cavity. The opening of the through hole faces the side of the brush head where the bristles are arranged, so that the camera's imaging range covers at least a portion of the bristles. When brushing teeth, the camera can directly capture images of the user's teeth inside the mouth, making it convenient for the user to understand the cleaning status of the teeth. In addition, because the camera is installed in the handle, replacing the brush head will not affect the camera, reducing costs. Even if the brush head vibrates, the photos taken by the camera can be clear, reducing the impact of the brush head vibration on the camera, and improving the effect of taking photos of the cleaning status of the teeth inside the mouth. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the electric toothbrush according to an embodiment of the present utility model;

[0022] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A;

[0023] Figure 3 1 is a schematic top view of the electric toothbrush according to an embodiment of the present utility model;

[0024] Figure 4 yes Figure 3 BB cross-sectional view;

[0025] Figure 5 It is a schematic diagram of the lens and light components of the camera in the embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the camera imaging range of the electric toothbrush according to an embodiment of the present utility model;

[0027] Numbers in the figure:

[0028] 1. Handle; 101. Accommodating cavity; 102. Through hole; 1021. First hole wall; 1022. Second hole wall; 11. Hand-held part; 111. End cover; 12. Connecting part; 2. Power assembly; 21. Power output shaft; 22. Motor; 3. Brush head; 31. Brush rod; 32. Brush plate; 33. Bristles; 4. Camera; 401. Camera range; 41. Lens; 42. Lamp; 5. Light-transmitting part; 6. Control main board; 7. Display; 8. Button part; 81. Switch button; 82. Shooting button; 9. Battery. DETAILED DESCRIPTION

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0031] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] See Figures 1-6 As shown, an embodiment of the present invention provides an electric toothbrush, comprising a handle 1, a power assembly 2, a brush head 3 and a camera 4. The handle 1 has an accommodating cavity 101 inside, and a through hole 102 connected to the accommodating cavity 101 is opened on the handle 1; the power assembly 2 is installed in the accommodating cavity 101, and the power assembly 2 includes a power output shaft 21, and one end of the power output shaft 21 extends out of the accommodating cavity 101; the brush head 3 is connected to the end of the power output shaft 21 extending out of the accommodating cavity 101, and the orifice of the through hole 102 faces the side of the brush head 3 where the bristles 33 are set; the camera 4 is installed in the accommodating cavity 101 and closes the through hole 102. The camera 4 is tilted and the lens 41 of the camera 4 is opposite to the through hole 102, so that the camera range 401 of the camera 4 covers at least part of the bristles 33 of the brush head 3.

[0033] Because the camera 4 and the bristles 33 of the brush head 3 are located on the same side, the camera 4's imaging range 401 covers at least a portion of the bristles 33. During brushing, the camera 4 can directly capture images of the user's teeth inside the mouth, making it easier for the user to understand the cleaning status of their teeth. Furthermore, because the camera 4 is mounted within the handle 1, replacing the brush head 3 does not affect the camera 4, reducing costs. Even if the brush head 3 vibrates, the images captured by the camera 4 remain clear, minimizing the impact of the vibration on the camera 4 and improving the quality of the photos taken to capture the cleaning status of the teeth inside the mouth.

[0034] See Figure 1 As shown, in some embodiments, the handle 1 includes a hand-held portion 11 and a connecting portion 12. The first end of the connecting portion 12 is connected to the hand-held portion 11, and the second end of the connecting portion 12 is connected to the brush head 3. The outer diameter of the connecting portion 12 decreases from the first end to the second end, and a through hole 102 is provided on the connecting portion 12. The outer diameter of the hand-held portion 11 is generally larger than the cross-sectional size of the brush head 3, which not only meets the requirement of convenient hand-held use of the hand-held portion 11, but also makes it easy for the brush head 3 to enter the oral cavity. The connecting portion 12 serves as a transition connection from the hand-held portion 11 to the brush head 3. The through hole 102 is provided on the connecting portion 12 so that the brush head 3 can be within the camera range 401 of the camera 4. An end cap 111 is provided at the end of the hand-held portion 11 connected to the connecting portion 12 to seal the accommodating cavity 101 and prevent water from entering the accommodating cavity 101.

[0035] In some embodiments, the camera 4 is a medical detection micro camera 4. The angle α between the normal line of the lens 41 of the camera 4 and the central axis of the power output shaft 21 is between 17° and 27°, so as to ensure that the camera range 401 of the camera 4 covers the head of the bristles 33. When brushing teeth, the camera 4 can clearly capture the photos of the teeth being brushed. Figure 6 As shown, the included angle α between the normal line of the lens 41 of the camera 4 and the central axis of the power output shaft 21 is 22°. According to tests, the included angle α between the normal line of the lens 41 of the camera 4 and the central axis of the power output shaft 21 can also be between 17° and 27°, and when the field of view angle β of the camera 4 is 40° to 55°, the camera's camera range can cover the bristles 33. Preferably, 0<β / 2-α<5°.

[0036] See Figure 2 As shown, in some embodiments, the through hole 102 has a first hole wall 1021 and a second hole wall 1022 arranged opposite to each other. The first hole wall 1021 and the second hole wall 1022 are respectively arranged to be inclined toward the lens 41, so that the aperture of the through hole 102 increases from the inside of the accommodating cavity 101 to the outside of the accommodating cavity 101. The aperture of the through hole 102 has a tendency to increase from the inside of the accommodating cavity 101 to the outside of the accommodating cavity 101, so that the configuration of the through hole 102 is compatible with the change in the field of view of the camera 4, thereby preventing the configuration of the through hole 102 from interfering with the image capture of the camera 4.

[0037] See Figure 1 and Figure 2 In some embodiments, the electric toothbrush further includes a light-transmitting member 5, which is mounted at the through hole 102 and covers the through hole 102 to seal the through hole 102. The light-transmitting member 5 not only seals the through hole 102, but also keeps the accommodating cavity 101 in a closed state, thereby preventing water from entering the accommodating cavity 101, and does not affect the transmission of light.

[0038] See Figure 5 As shown, in some embodiments, the electric toothbrush further includes a light 42 , which is disposed on the side of the lens 41 of the camera 4 that faces the through-hole 102 . Multiple light 42 are provided, spaced apart along the circumference of the lens 41 and located on the outer edge of the lens 41 . The light 42 on the lens 41 provides light for the camera 4 to capture, making the intraoral images taken by the camera 4 clearer. The light 42 is a flash.

[0039] See Figure 4 As shown, in some embodiments, the power assembly 2 further includes a power source, which is connected to the power output shaft 21 and provides power to the power output shaft 21. The power source is a motor 22.

[0040] See Figure 4As shown, in some embodiments, the electric toothbrush further includes a control board 6 and a display screen 7. The control board 6 is disposed within the accommodating cavity 101, and the display screen 7 is mounted on the handle 1. The display screen 7 and the camera 4 are electrically connected to the control board 6. The camera 4 transmits the captured photos to the control board 6, which controls the display screen 7 to display the captured photos. The control board 6 can be provided with a processor, which is electrically connected to the display screen 7 and the camera 4.

[0041] See Figure 1 、 Figure 3 and Figure 4 As shown, in some embodiments, the electric toothbrush further includes a button portion 8, which is disposed on the handle 1 and electrically connected to the control board 6. The button portion 8 includes an on / off button 81 and a capture button 82. The on / off button 81 controls the start and stop of the electric toothbrush; the capture button 82 facilitates the operation of the camera 4 to capture images. To facilitate operation of the button portion 8, in some embodiments, the button portion 8 and the through hole 102 are disposed on the same side of the central axis of the handle 1.

[0042] See Figure 4 As shown, in some embodiments, the electric toothbrush further includes a battery 9, which is disposed in the accommodating cavity 101. The battery 9 is connected to the power component 2 and the control mainboard 6 to supply power to the power component 2 and the control mainboard 6.

[0043] See Figure 1 As shown, in some embodiments, the brush head 3 includes a brush rod 31, a brush plate 32 and bristles 33. One end of the brush rod 31 is connected to the end of the power output shaft 21 extending out of the accommodating cavity 101, and the other end of the brush rod 31 is connected to the brush plate 32. The bristles 33 are distributed on the brush plate 32.

[0044] The working process of this utility model is:

[0045] When brushing your teeth, use a foam-free toothpaste and take pictures of the teeth being brushed in your mouth through the camera 4 while brushing your teeth. The taken tooth pictures are directly displayed on the display screen 7 through the control main board 6, so as to facilitate timely detection of oral problems such as caries, tooth decay, gum atrophy, dental plaque, etc. in the oral cavity. Without affecting the user experience of the electric toothbrush, tooth information can be obtained to remind the user to receive dental treatment in time.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. An electric toothbrush, characterized in that: include: A handle (1) having an accommodating cavity (101) therein, and a through hole (102) communicating with the accommodating cavity (101) is provided on the handle (1); A power assembly (2) is installed in the accommodating cavity (101), and the power assembly (2) includes a power output shaft (21), and one end of the power output shaft (21) extends out of the accommodating cavity (101); A brush head (3) is connected to one end of the power output shaft (21) extending out of the accommodating cavity (101), and the opening of the through hole (102) faces the side of the brush head (3) where the bristles (33) are provided; and A camera (4) is installed in the accommodating cavity (101) and closes the through hole (102). The camera (4) is tilted and the lens (41) of the camera (4) is opposite to the through hole (102), so that the camera range (401) of the camera (4) covers at least part of the bristles (33) of the brush head (3).

2. The electric toothbrush according to claim 1, wherein The through hole (102) has a first hole wall (1021) and a second hole wall (1022) arranged opposite to each other, and the first hole wall (1021) and the second hole wall (1022) are respectively arranged to be inclined toward the lens (41), so that the aperture of the through hole (102) increases from the inside of the accommodating cavity (101) to the outside of the accommodating cavity (101).

3. The electric toothbrush according to claim 1, wherein The angle α between the normal of the lens (41) of the camera (4) and the central axis of the power output shaft (21) is between 17° and 27°; the field of view angle β of the camera (4) is between 40° and 55°, and 0<β / 2-α<5°.

4. The electric toothbrush according to claim 1, wherein The electric toothbrush further comprises a lamp (42), and the lamp (42) is arranged on a side of the lens (41) of the camera (4) facing the through hole (102).

5. The electric toothbrush according to claim 4, characterized in that A plurality of the lamp components (42) are provided, and the plurality of lamp components (42) are arranged at intervals on the outer edge of the lens (41) along the circumference of the lens (41).

6. The electric toothbrush according to claim 1, wherein The electric toothbrush further comprises a light-transmitting member (5) mounted at the through hole (102) to close the through hole (102).

7. The electric toothbrush according to claim 1, wherein The electric toothbrush further comprises a control mainboard (6) and a display screen (7); the control mainboard (6) is arranged in the accommodating cavity (101); the display screen (7) is mounted on the handle (1); and the display screen (7) and the camera (4) are electrically connected to the control mainboard (6), respectively.

8. The electric toothbrush according to claim 7, characterized in that The electric toothbrush further comprises a button portion (8), the button portion (8) being arranged on the handle (1), and the button portion (8) being electrically connected to the control main board (6).

9. The electric toothbrush according to claim 8, characterized in that The button portion (8) and the through hole (102) are arranged on the same side of the central axis of the handle (1).

10. The electric toothbrush according to claim 1, wherein The handle (1) comprises a hand-held portion (11) and a connecting portion (12), wherein a first end of the connecting portion (12) is connected to the hand-held portion (11), and a second end of the connecting portion (12) is connected to the brush head (3), an outer diameter of the connecting portion (12) decreases from the first end to the second end, and the through hole (102) is provided on the connecting portion (12).

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