Mouth breath detection device for electric toothbrush

Abstract

The utility model discloses an electric toothbrush breath detection device, which relates to the technical field of toothbrushes, and comprises a grab handle and a mounting seat arranged at the top of the grab handle, the top of the mounting seat is fixedly connected with a brush head, one side of the outer arc wall of the mounting seat is provided with an air inlet hole, and the longitudinal section of the air inlet hole is' '-shaped; according to the toothbrush, after tooth brushing is finished, a user pulls the limiting plate from the limiting groove to remove fixation of the fixing mechanism and open the air inlet hole at the same time, and after the user faces the air inlet hole and blows air, airflow flows into an inner channel of the mounting base and the grab handle through the pipeline to reach the detection circuit board; the detection device on the detection circuit board can detect the breath of a user, the breath is processed by the control circuit board and then is output to the control terminal to be displayed, and peculiar smell or other potential problems such as dental plaque and dental calculus in the oral cavity can be found in time, so that the user is guided to brush teeth more scientifically, and the oral cavity is kept healthy.

Description

Technical Field

[0001] This utility model relates to the field of toothbrush technology, specifically to an electric toothbrush breath detection device. Background Technology

[0002] An electric toothbrush is a new type of toothbrush that uses the rapid rotation or vibration of a motor to generate high-frequency vibrations in the brush head. At the same time, the vibrations of the bristles promote blood circulation in the mouth and have a massaging effect on the gum tissue. Compared with traditional manual toothbrushes, electric toothbrushes have significant improvements in cleaning ability, convenience, and fun. The main working principle is that the built-in battery drives the motor to rotate or vibrate rapidly, which drives the brush head to generate high-frequency vibrations. This high-frequency vibration can break down toothpaste into fine foam, making it easier to penetrate into the gaps between teeth and hard-to-reach areas, thereby achieving a better cleaning effect.

[0003] However, regardless of the type of electric toothbrush, the cleaning effect it can achieve is ultimately determined by the user's usage method. Most existing electric toothbrushes are driven by a motor to make the brush head vibrate. During use, users can only subjectively judge whether the cleaning is completed, and cannot judge whether the brushing is correct or the cleaning is thorough.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide an electric toothbrush breath detection device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides an electric toothbrush breath detection device, including a handle and a mounting base installed on the top of the handle. A brush head is fixedly connected to the top of the mounting base. An air inlet is provided on one side of the outer arc wall of the mounting base. The longitudinal section of the air inlet is "「"-shaped, and its vertical part is parallel to the axis of the handle. The end of the vertical part of the air inlet away from the brush head passes through the end of the mounting base near the handle. A conduit adapted to the air inlet is provided at the corresponding position on the top of the handle. The conduit can be inserted into the interior of the vertical part of the air inlet near the handle. The handle is a hollow structure. A horizontal partition plate 1 is fixedly connected to the top of the inner arc wall of the handle, and a horizontal partition plate 3 is fixedly connected to the bottom of the inner arc wall of the handle. The end of the conduit located inside the handle vertically passes through the partition plate 1. A mounting bracket is fixedly connected to the side wall of the partition plate 3 near the partition plate 1. A battery is fixedly connected inside the mounting bracket. A detection circuit board is fixedly connected to the outer wall of the mounting bracket near the brush head. The detection circuit board is located near the position where the conduit passes through the partition plate 1.

[0007] Furthermore, a control circuit board is fixedly connected to the bottom of the outer wall of the mounting frame, and a horizontal partition plate II is fixedly connected to the end of the mounting frame near the brush head. A button is provided on the outer arc wall of the handle at the position corresponding to the control circuit board. The control circuit board, partition plate II, and detection circuit board are arranged in sequence facing the direction near the brush head. The button and detection circuit board are electrically connected to the control circuit board, and the control circuit board is electrically connected to the battery.

[0008] Furthermore, a coil is provided on the side of the partition plate three away from the brush head, and a charging port is provided at the center of the bottom of the handle. The charging port is electrically connected to the coil. A vibration motor is fixedly connected to the side wall of the partition plate one near the brush head. A drive shaft is fixedly connected to the output end of the vibration motor. The end of the drive shaft away from the vibration motor passes through the top of the handle.

[0009] Furthermore, the mounting base has a hollow internal structure, and a limiting groove is provided on the outer arc wall near the button. The limiting groove is interconnected with the interior of the mounting base. The longitudinal section of the limiting groove is L-shaped. The vertical part of the limiting groove is parallel to the center line of the handle, and the horizontal part of the limiting groove is parallel to the outer arc wall of the mounting base. A limiting plate three is slidably connected inside the limiting groove. The limiting plate three includes a rotating part one and a rotating part two. The rotating part one is slidably connected inside the limiting groove. A rotating shaft is fixedly connected to the top of the side wall of the rotating part one away from the mounting base. The rotating part two is rotatably connected to the outer arc wall of the rotating shaft. The rotating part two fits into the vertical part of the limiting groove. A fixing mechanism is fixedly connected to the side of the limiting plate three near the interior of the mounting base.

[0010] Furthermore, the fixing mechanism includes an internal gear ring fixedly connected to a side wall of the rotating part near the interior of the mounting base. The internal gear ring is rotatably connected to the interior of the mounting base. The axial length of the internal gear ring is greater than the height of the inner wall of the limiting groove. Four gears arranged in a circular array are meshed on the inner side of the internal gear ring. A horizontal rack is meshed on one side of each gear. The length direction of the rack is all set towards the axis of the internal gear ring. The rack is located above the internal gear ring and the two abut against each other. Limiting plate one is fixedly connected to the side wall of two opposing racks that are close to each other. Limiting plate two is fixedly connected to the side wall of the other two opposing racks that are close to each other.

[0011] Furthermore, both ends of the first limiting plate are provided with recesses, and both ends of the second limiting plate are provided with protrusions. The protrusions are adapted to the recesses. The top of the rack located on the side of the air inlet is fixedly connected to the first limiting rod. The side wall of the first limiting rod away from the rack is inclined toward the axis of the inner toothed ring. The top of the first limiting rod abuts against the second limiting rod. The side wall of the second limiting rod near the first limiting rod is a slope.

[0012] Furthermore, the second limiting rod is slidably connected to the bottom of the brush head, and a vertical groove is provided in the middle of the horizontal part of the air inlet. The end of the second limiting rod away from the first limiting rod is slidably connected to the groove.

[0013] Furthermore, the air inlet is an open opening on the outer arc wall of the brush head, and the cross-sectional radius of the first groove is larger than the cross-sectional radius of the air inlet.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. After finishing brushing, the user pulls the limiting plate out of the limiting groove to release the fixing mechanism and open the air inlet. The user blows air into the air inlet, and the airflow flows through the pipe into the internal channel of the mounting base and handle to the detection circuit board. The detection device on the detection circuit board can detect the user's breath, and after processing by the control circuit board, it outputs to the control terminal for display. It can detect bad breath or other potential problems in the mouth in time, such as dental plaque and tartar, thereby guiding the user to brush their teeth more scientifically and maintain oral health.

[0016] 2. The fixing mechanism can easily clamp and fix the output end of the vibration motor during installation, so that the output of the vibration motor can be well transmitted to the brush head. Compared with the traditional insertion fixing, it is more accurate in detecting and controlling the vibration frequency and vibration amplitude. Users can make more accurate adjustments, reduce unnecessary energy consumption, and extend the battery life of this device. Attached Figure Description

[0017] Figure 1 A cross-sectional view of the internal structure of an electric toothbrush breath detection device;

[0018] Figure 2 This is a schematic diagram of the external structure of an electric toothbrush breath detection device;

[0019] Figure 3 This is a schematic diagram of the fixing mechanism in an electric toothbrush breath detection device.

[0020] In the picture:

[0021] 10. Brush head; 11. Air inlet; 12. Mounting base; 13. Drive shaft; 14. Button; 15. Handle; 16. Limiting groove;

[0022] 20. Fixing mechanism; 21. Internal gear ring; 22. Gear; 23. Rack; 24. Limiting plate one; 25. Limiting plate two;

[0023] 30. Limiting plate three; 31. Rotating shaft; 32. Limiting rod one; 33. Limiting rod two;

[0024] 40. Vibration motor; 41. Partition plate one; 42. Battery; 43. Mounting bracket; 44. Coil one; 45. Control circuit board; 46. Partition plate two; 47. Detection circuit board; 48. Partition plate three. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-3 This utility model provides a technical solution: it includes a handle 15 and a mounting base 12 installed on the top of the handle 15. A brush head 10 is fixedly connected to the top of the mounting base 12. An air inlet 11 is provided on one side of the outer arc wall of the mounting base 12. The longitudinal section of the air inlet 11 is "「" shaped, and its vertical part is parallel to the axis of the handle 15. The end of the vertical part of the air inlet 11 away from the brush head 10 passes through the end of the mounting base 12 near the handle 15. A conduit adapted to the air inlet 11 is provided at a corresponding position on the top of the handle 15. The conduit can be inserted into the vertical part of the air inlet 11 near the handle 15. Inside one end of the handle 15, the handle 15 is hollow. A horizontal partition plate 41 is fixedly connected to the top of the inner arc wall of the handle 15, and a horizontal partition plate 48 is fixedly connected to the bottom of the inner arc wall of the handle 15. The end of the guide tube located inside the handle 15 vertically penetrates the partition plate 41. A mounting bracket 43 is fixedly connected to the side wall of the partition plate 48 near the partition plate 41. A battery 42 is fixedly connected inside the mounting bracket 43. A detection circuit board 47 is fixedly connected to the outer wall of the mounting bracket 43 near the brush head 10. The detection circuit board 47 is located near the position where the guide tube penetrates the partition plate 41.

[0027] It should be noted that: the interior of the mounting base 12 is hollow, providing ample space for the fixed mechanism 20 to move. The air inlet 11 is located at the end of the outer arc wall of the mounting base 12 near the brush head 10. A pipe with a longitudinal cross-section of "「" is fixedly connected inside the mounting base 12, so that when the airflow enters from the air inlet 11, it can enter the guide tube at the top of the handle 15 along the pipe. The cross-sectional radius of the guide tube is slightly smaller than that of the pipe, and the guide tube can be inserted into the pipe.

[0028] The pipe does not contact the fixing mechanism 20, that is, the pipe is located in the gap between two adjacent racks 23 in the fixing mechanism 20.

[0029] Please see Figure 1-3The present invention provides a technical solution: a control circuit board 45 is fixedly connected to the bottom of the outer wall of the mounting bracket 43, and a horizontal partition plate 46 is fixedly connected to one end of the mounting bracket 43 near the brush head 10. A button 14 is provided on the outer arc wall of the handle 15 at the position corresponding to the control circuit board 45. The control circuit board 45, the partition plate 46, and the detection circuit board 47 are arranged in sequence facing the direction near the brush head 10. The button 14 and the detection circuit board 47 are electrically connected to the control circuit board 45, and the control circuit board 45 is electrically connected to the battery 42.

[0030] It should be noted that the control circuit board 45 is equipped with a microprocessor, which can control the start and stop of the vibration motor 40 by receiving the electrical signal generated by pressing the button 14. That is, the vibration motor 40 works when the battery 42 has sufficient power and the button 14 is pressed. The electrical signal emitted by pressing the button 14 is processed by the microprocessor on the control circuit board 45 and then starts the vibration motor 40 to drive the transmission shaft 13 to vibrate. In order to save wiring space, the button 14 can be soldered to the control circuit board 45 and directly electrically connected to the microprocessor.

[0031] In order to prevent moisture in the user's breath from affecting the control circuit board 45 during the test, the detection circuit board 47 is set up separately from the control circuit board 45. The two can be electrically connected by a line. The second partition plate 46 is used to isolate the control circuit board 45 from the detection circuit board 47, and the second partition plate 46 has a reserved channel for the line to pass through.

[0032] A gas detection device is provided on the detection circuit board 47. The gas detection device is located on the detection circuit board 47 near the end of the conduit and facing the outlet of the conduit. The gas detection device is an electrochemical sensor. It detects hydrogen sulfide, the main source of odor in breath, and generates an electrical signal through the oxidation-reduction reaction of gas molecules on the electrode of the sensor. That is, when gas molecules such as hydrogen sulfide in breath come into contact with the electrode, an oxidation-reduction reaction occurs, which generates a current signal proportional to the gas concentration and transmits it to the microprocessor on the control circuit board 45. After processing, it is expressed in other forms.

[0033] In another embodiment, a Bluetooth module can be installed on the control circuit board 45 to connect with the user's control terminal so that the detection data can be sent to the control terminal for the user to view. Alternatively, the control circuit board 45 can be electrically connected to a display screen, which can be installed on the outer arc wall of the handle 15 so that the user can intuitively understand the detection results.

[0034] Please see Figure 1-3The present invention provides a technical solution: a coil 44 is provided on the side of the partition plate 48 away from the brush head 10, a charging port is provided at the bottom center of the handle 15, the charging port is electrically connected to the coil 44, a vibration motor 40 is fixedly connected to the side wall of the partition plate 41 near the brush head 10, a drive shaft 13 is fixedly connected to the output end of the vibration motor 40, and the end of the drive shaft 13 away from the vibration motor 40 passes through the top of the handle 15.

[0035] It should be noted that: Coil 1 44 is a conductive metal coil. A coil 2 with the same structure as coil 1 44 is installed at the end of battery 42 near coil 1 44. When the end of coil 1 44 away from brush head 10 is energized, a magnetic field is generated in coil 1 44, which is transmitted to coil 2 through coupling and generates current in coil 2 to charge battery 42.

[0036] A sealing gasket is installed at the connection between the drive shaft 13 and the handle 15. The battery 42 powers the vibration motor 40. The partition plate 41 has a channel for the wiring to pass through.

[0037] Please see Figure 1-3 This utility model provides a technical solution: the mounting base 12 has a hollow structure inside, and a limiting groove 16 is provided on the outer arc wall near the button 14. The limiting groove 16 is interconnected with the interior of the mounting base 12. The longitudinal section of the limiting groove 16 is L-shaped. The vertical part of the limiting groove 16 is parallel to the axis of the handle 15, and the horizontal part of the limiting groove 16 is parallel to the outer arc wall of the mounting base 12. A limiting plate 30 is slidably connected inside the limiting groove 16. The limiting plate 30 includes a rotating part one and a rotating part two. The rotating part one is slidably connected inside the limiting groove 16. A rotating shaft 31 is fixedly connected to the top of the side wall of the rotating part one away from the mounting base 12. The rotating part two is rotatably connected to the outer arc wall of the rotating shaft 31. The rotating part two fits into the vertical part of the limiting groove 16. A fixing mechanism 20 is fixedly connected to the side of the limiting plate 30 near the interior of the mounting base 12.

[0038] It should be noted that: the rotating shaft 31 is a damped rotating shaft, and the rotational friction of the rotating shaft 31 is greater than the weight of the rotating part 2.

[0039] Please see Figure 1-3This utility model provides a technical solution: the fixing mechanism 20 includes an internal gear ring 21 fixedly connected to a side wall of the rotating part near the interior of the mounting base 12. The internal gear ring 21 is rotatably connected to the interior of the mounting base 12. The axial length of the internal gear ring 21 is greater than the height of the inner wall of the limiting groove 16. Four gears 22 arranged in a circular array are meshed on the inner side of the internal gear ring 21. A horizontal rack 23 is meshed on one side of each gear 22. The length direction of the racks 23 is all oriented towards the axis of the internal gear ring 21. The racks 23 are located above the internal gear ring 21 and abut against each other. Limiting plates 1 and 24 are fixedly connected to the side wall of two opposing racks 23 that are close to each other. Limiting plates 25 are fixedly connected to the side wall of the other two opposing racks 23 that are close to each other. The limiting plate 24 has a notch at the middle of both ends, and the limiting plate 25 has a protrusion at the middle of both ends. The protrusion and the notch are adapted to fit together. The top of the rack 23 located on one side of the air inlet 11 is fixedly connected to the limiting rod 32. The side wall of the limiting rod 32 away from the rack 23 is inclined towards the axis of the inner toothed ring 21. The top of the limiting rod 32 abuts against the limiting rod 33. The side wall of the limiting rod 33 near the limiting rod 32 is inclined. The limiting rod 33 is slidably connected to the bottom of the brush head 10. The middle of the horizontal part of the air inlet 11 is provided with a vertical groove. The end of the limiting rod 33 away from the limiting rod 32 is slidably connected to the groove. The opening of the air inlet 11 on the outer arc wall of the brush head 10 is open. The cross-sectional radius of the groove is larger than the cross-sectional radius of the air inlet 11.

[0040] It should be noted that: the second limiting rod 33 and the first limiting rod 32 abut against each other, and the side walls of the two sides that are close to each other are inclined. When the fixing mechanism 20 starts the rack 23 to move toward the axis of the inner gear ring 21, the first limiting rod 32 will push the second limiting rod 33 and, under the action of the inclined surface, cause the second limiting rod 33 to move upward and block the horizontal part of the air inlet 11. Conversely, if the first limiting rod 32 moves in the opposite direction, the second limiting rod 33 will slide out of the first slide groove and no longer block the air inlet 11.

[0041] The limiting rod 32 does not contact the vertical part of the air inlet 11 and is not located in the same vertical plane.

[0042] Working principle:

[0043] Align the insertion hole at the center of the bottom of the brush head 10 with the drive shaft 13 and make the bristles at the top of the brush head 10 and the button 14 on the same side. Pull the limiting plate 30 to make the fixing mechanism 20 clamp the button 14. Then flip the limiting plate 30 upward so that the rotating part 2 is embedded in the vertical part of the limiting groove 16. Press the button 14 to start the device.

[0044] After use, pull the limit plate 30 in the opposite direction to release the clamping mechanism 20. At this time, the limit rod 33 is no longer pressed by the limit rod 32 and slides down. At this time, the air inlet 11 is open. The user blows air into the air inlet 11. The airflow passes through the conduit inside the mounting base 12 to the detection circuit board 47 for detection and feedback to the control terminal or display screen.

Claims

1. An electric toothbrush breath detection device, comprising a handle (15) and a mounting base (12) mounted on the top of the handle (15), wherein a brush head (10) is fixedly connected to the top of the mounting base (12), characterized in that: An air inlet (11) is provided on one side of the outer arc wall of the mounting base (12). The longitudinal section of the air inlet (11) is "「" shaped. Its vertical part is parallel to the axis of the handle (15). The end of the vertical part of the air inlet (11) away from the brush head (10) passes through the end of the mounting base (12) near the handle (15). A guide tube adapted to the air inlet (11) is provided at the corresponding position on the top of the handle (15). The guide tube can be inserted into the interior of the end of the vertical part of the air inlet (11) near the handle (15). The handle (15) is a hollow structure. The top of the inner arc wall of the handle (15) is fixedly connected to There is a horizontal partition plate 1 (41), and a horizontal partition plate 3 (48) is fixedly connected to the bottom of the inner arc wall of the handle (15). One end of the guide tube is located inside the handle (15) and vertically penetrates the partition plate 1 (41). A mounting bracket (43) is fixedly connected to the side wall of the partition plate 3 (48) near the partition plate 1 (41). A battery (42) is fixedly connected inside the mounting bracket (43). A detection circuit board (47) is fixedly connected to the outer wall of the mounting bracket (43) near the brush head (10). The detection circuit board (47) is located near the position where the guide tube penetrates the partition plate 1 (41).

2. The electric toothbrush breath detection device as described in claim 1, characterized in that: The bottom of the outer wall of the mounting bracket (43) is fixedly connected to a control circuit board (45). A horizontal partition plate (46) is fixedly connected to one end of the mounting bracket (43) near the brush head (10). A button (14) is provided on the outer arc wall of the handle (15) at the position corresponding to the control circuit board (45). The control circuit board (45), the partition plate (46) and the detection circuit board (47) are arranged in sequence facing the direction near the brush head (10). The button (14) and the detection circuit board (47) are electrically connected to the control circuit board (45). The control circuit board (45) is electrically connected to the battery (42).

3. The electric toothbrush breath detection device as described in claim 1, characterized in that: A coil (44) is provided on the side of the partition plate three (48) away from the brush head (10). A charging port is provided at the center of the bottom of the handle (15). The charging port is electrically connected to the coil (44). A vibration motor (40) is fixedly connected to the side wall of the partition plate one (41) near the brush head (10). A drive shaft (13) is fixedly connected to the output end of the vibration motor (40). The end of the drive shaft (13) away from the vibration motor (40) passes through the top of the handle (15).

4. The electric toothbrush breath detection device as described in claim 1, characterized in that: The mounting base (12) has a hollow interior. A limiting groove (16) is provided on the outer arc wall near the button (14). The limiting groove (16) is interconnected with the interior of the mounting base (12). The longitudinal section of the limiting groove (16) is L-shaped. The vertical part of the limiting groove (16) is parallel to the axis of the handle (15), and the horizontal part of the limiting groove (16) is parallel to the outer arc wall of the mounting base (12). A limiting plate is slidably connected inside the limiting groove (16). (30) The limiting plate three (30) includes a rotating part one and a rotating part two. The rotating part one is slidably connected in the limiting groove (16). A rotating shaft (31) is fixedly connected to the top of the side wall of the rotating part one away from the mounting base (12). The rotating part two is rotatably connected to the outer arc wall of the rotating shaft (31). The rotating part two and the vertical part of the limiting groove (16) fit together. A fixing mechanism (20) is fixedly connected to the side of the limiting plate three (30) close to the inside of the mounting base (12).

5. The electric toothbrush breath detection device as described in claim 4, characterized in that: The fixing mechanism (20) includes an internal gear ring (21) fixedly connected to a side wall of the rotating part near the interior of the mounting base (12). The internal gear ring (21) is rotatably connected to the interior of the mounting base (12). The axial length of the internal gear ring (21) is greater than the height of the inner wall of the limiting groove (16). Four gears (22) arranged in a ring array are meshed on the inner side of the internal gear ring (21). A horizontal rack (23) is meshed on one side of the gear (22). The length direction of the rack (23) is all set towards the axis of the internal gear ring (21). The rack (23) is located above the internal gear ring (21) and the two abut against each other. A limiting plate one (24) is fixedly connected to the side wall of the two opposing racks (23) that are close to each other. A limiting plate two (25) is fixedly connected to the side wall of the other two opposing racks (23) that are close to each other.

6. The electric toothbrush breath detection device as described in claim 5, characterized in that: The limiting plate one (24) has a notch at the middle of both ends, and the limiting plate two (25) has a protrusion at the middle of both ends. The protrusion matches the notch. The top of the rack (23) located on the side of the air inlet (11) is fixedly connected to the limiting rod one (32). The side wall of the limiting rod one (32) away from the rack (23) is inclined toward the axis of the inner toothed ring (21). The top of the limiting rod one (32) abuts against the limiting rod two (33). The side wall of the limiting rod two (33) near the limiting rod one (32) is a slope.

7. The electric toothbrush breath detection device as described in claim 6, characterized in that: The second limiting rod (33) is slidably connected to the bottom of the brush head (10). The middle of the horizontal part of the air inlet (11) is provided with a vertical groove. The end of the second limiting rod (33) away from the first limiting rod (32) is slidably connected to the groove.

8. The electric toothbrush breath detection device as described in claim 7, characterized in that: The air inlet (11) is located on the outer arc wall of the brush head (10) and is open. The cross-sectional radius of the first groove is larger than the cross-sectional radius of the air inlet (11).

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