Electric toothbrush with oral irrigation function

By using a two-way motor with hollow shaft branches that can operate dual-mode in electric toothbrushes, combined with a built-in water tank and pump body assembly, the combination of brushing and tooth punching functions is achieved, and the problem of volume and weight increase in existing electric toothbrushes after adding the toothbrushing function is solved, improving user experience and practicality.

WO2025097357A1PCT designated stage expired Publication Date: 2025-05-15KERUI TECH (DONGGUAN) CO LTD
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Patent Information

Application Number
PCT/CN2023/130664
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-11-09
Publication Date
2025-05-15

AI Technical Summary

Technical Problem

After the existing electric toothbrush with toothbrush function is added, the size and weight are bloated and the battery life is increased, which seriously compresses the battery capacity and deteriorates the battery life. It is difficult for users to use it flexibly and conveniently, resulting in poor user experience.

Method used

A two-way motor with hollow shaft branches can operate dual-mode, combined with a built-in water tank and pump body assembly, a passage is formed through a hollow brush head and hose, which realizes the function switching of the two-way motor in radial swing and axial telescopic modes, and is used for brushing and rushing teeth respectively.

Benefits of technology

With the unchanged appearance and weight, the combination of brushing and tooth punching functions is achieved, which is convenient to use, strong practicality, excellent user experience, and no need to add independent water pump motors and other equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2023130664_15052025_PF_FP_ABST
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Abstract

An electric toothbrush with an oral irrigation function, comprising a bidirectional motor (1) provided with a hollow shaft (11). A lower end of the bidirectional motor (1) is in communication with a flexible tube (3) by means of a pump body assembly (2). The bidirectional motor (1), the pump body assembly (2), and a water tank (4) are sequentially arranged on the inner side of a machine core (5). A control panel (51) and a battery compartment (52) are arranged on the outer side of the machine core (5). The machine core (5) is mounted inside a brush handle (7). A base (71) is used to encapsulate the machine core (5) and the water tank (4). A top end of the hollow shaft (11) is inserted into the bottom of a hollow brush head (8). A side surface of the top of the hollow brush head (8) is provided with a flow-straightening water outlet (81) and bristles (82). The shape of the electric toothbrush with an oral irrigation function is consistent with that of a common electric toothbrush. By means of the built-in water tank (4) and the pump body assembly (2) and by means of using the hollow brush head (8) and using the bidirectional motor (1) provided with the hollow shaft (11) and capable of being operated in a dual-mode manner, and with the shape and the weight being unchanged, the bidirectional motor (1) cooperates with the pump body assembly (2), so that the tooth brushing function and the oral irrigation function can be achieved, without the additional arrangement of devices such as a water pump motor independent of the bidirectional motor (1). The electric toothbrush is convenient to use, is highly practical, and provides an excellent user experience.
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Description

An electric toothbrush with teeth flushing function Technical Field

[0001] The present invention relates to the technical field of bidirectional motors and electric toothbrushes, and in particular to an electric toothbrush with a teeth flushing function. Background Art

[0002] Electric toothbrushes are used to efficiently clean tooth surfaces, while oral irrigators are used to clean between teeth. Therefore, users who seek to maintain dental hygiene often purchase both an electric toothbrush and an oral irrigator. To reduce the number of devices and improve user convenience, cleaning devices have emerged on the market that combine the functions of an electric toothbrush with the addition of a brush motor, piston pump, water tank, and diversion tube. These cleaning devices use compressed air to pump water from the water tank to achieve the flushing function.

[0003] However, after adding the flushing function, this type of electric toothbrush often becomes bloated and heavy, which seriously compresses the battery capacity and worsens the battery life. The increase in size and weight also makes it difficult for users to use it flexibly and conveniently. Users cannot get a good user experience with the basic brushing function or the newly added flushing function, and practicality is not fully considered in the design.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies of the prior art and provide an electric toothbrush with a teeth flushing function.

[0006] The technical solution adopted in the present invention is:

[0007] An electric toothbrush with a teeth flushing function, characterized by comprising:

[0008] A bidirectional motor 1 having a hollow shaft 11, the lower end of which is connected to a hose 3 via a pump assembly 2. The bidirectional motor 1, the pump assembly 2, and the water tank 4 are sequentially arranged inside a movement 5;

[0009] A control panel 51 electrically connected to control the bidirectional motor 1 is provided on the outside of the movement 5, and a protruding battery compartment 52 is provided on the bottom of the outside of the movement 5. The battery compartment 52 is used to install a battery 6 electrically connected to the control panel 51 to power the bidirectional motor 1 via the control panel 51.

[0010] The core is installed inside the brush handle 7, and the base 71 is used to encapsulate the core 5 and the water tank 4;

[0011] The top of the hollow shaft 11 is provided with a plug-in structure adapted to the hollow brush head 8, which protrudes from the top opening of the brush handle 7 and is firmly inserted into the bottom of the hollow brush head 8. The hose 3, the pump body assembly 2, the hollow shaft 11 and the interior of the hollow brush head 8 are sequentially connected to form a passage;

[0012] A plurality of rectifying water outlet holes 81 are provided on the top side of the hollow brush head 8 , and bristles 82 are arranged around the rectifying water outlet holes 81 .

[0013] Preferably, the shaft of the bidirectional motor 1 has a radial swing mode in which the shaft swings back and forth along its radial direction, and an axial telescopic mode in which the shaft telescopes back and forth along its axial direction;

[0014] The radial oscillation mode cooperates with the bristles 82 of the hollow brush head 8 to achieve the tooth brushing function;

[0015] The axial telescopic mode cooperates with the pump body assembly 2, the hollow shaft 11 and the hollow brush head 8 to achieve the teeth flushing function.

[0016] Preferably, the pump assembly 2 includes a water suction pipe head 22, a diaphragm meson 23, a piston column 24, a silicone nozzle 25 and a piston 26 which are sequentially arranged in series inside the pump body 21;

[0017] The water suction pipe head 22 is used to tightly connect the hose 3 and the hollow shaft 11;

[0018] The diaphragm meson 23, the piston column 24, the silicone nozzle 25 and the piston 26 cooperate to realize the unidirectional flow of liquid and prevent the liquid from flowing back.

[0019] Preferably, one end of the hose 3 is connected to the hollow shaft 11 , and the other end extends to the bottom of the water tank 4 to stably extract the liquid in the water tank 4 .

[0020] Preferably, a soft silicone ring 9 is embedded in the joint between the hollow shaft 11 and the top opening of the brush handle 7 to provide a waterproof seal for the movement 5 .

[0021] Preferably, when the user inputs a brushing instruction through the control panel 51, the control panel 51 controls the bidirectional motor 1 to operate in a radial swing mode, and the hollow shaft 11 drives the bristles 82 to generate high-frequency reciprocating swings along the radial direction.

[0022] Preferably, when the user inputs a tooth flushing instruction through the control panel 51, the control panel 51 controls the bidirectional motor 1 to operate in an axial telescopic mode, and the hollow shaft 11 drives the piston 26 to perform high-frequency radial reciprocating motion in the pump body 21, and the gas and liquid in the water tank 4 are discharged in one direction through the passage formed by the hose 3, the pump body assembly 2, the hollow shaft 11 and the hollow brush head 8;

[0023] The liquid is ejected at high speed from the rectifying water outlet 81 to form a water floss for flushing the gaps between teeth.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] The electric toothbrush with flushing function involved in the present invention has the same appearance as an ordinary electric toothbrush. It has a built-in water tank and pump body assembly, adopts a hollow brush head, and adopts a bidirectional motor with a hollow shaft and dual-mode operation. Without changing the appearance and weight, the bidirectional motor cooperates with the pump body assembly to realize both brushing and flushing functions without adding equipment such as a water pump motor independent of the bidirectional motor. It is easy to use, highly practical, and provides an excellent user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic diagram of the exploded structure of an electric toothbrush with a tooth flushing function according to the present invention;

[0027] FIG2 is a cross-sectional schematic diagram of an electric toothbrush with a teeth flushing function according to the present invention;

[0028] FIG3 is a schematic diagram of the appearance of an electric toothbrush with a teeth flushing function according to the present invention. DETAILED DESCRIPTION

[0029] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to implementation cases and drawings.

[0030] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0031] The electric toothbrush with tooth flushing function of the present invention may include the following embodiments:

[0032] 1, 2 and 3, the electric toothbrush with a tooth flushing function proposed by the present invention includes:

[0033] A bidirectional motor 1 having a hollow shaft 11, the lower end of which is connected to a hose 3 via a pump assembly 2. The bidirectional motor 1, pump assembly 2, and water tank 4 are sequentially arranged inside a movement 5.

[0034] A control panel 51 electrically connected to control the bidirectional motor 1 is provided on the outside of the movement 5. A protruding battery compartment 52 is provided at the bottom of the outside of the movement 5. The battery compartment 52 is used to install a battery 6 electrically connected to the control panel 51 to power the bidirectional motor 1 via the control panel 51.

[0035] The movement is installed inside the brush handle 7, and the base 71 is used to encapsulate the movement 5 and the water tank 4;

[0036] The top of the hollow shaft 11 is provided with a plug-in structure adapted for the hollow brush head 8. The plug-in structure protrudes from the top opening of the brush handle 7 and is firmly inserted into the bottom of the hollow brush head 8. The hose 3, the pump body assembly 2, the hollow shaft 11 and the hollow brush head 8 are sequentially connected to form a passage.

[0037] A plurality of rectifying water outlet holes 81 are provided on the top side of the hollow brush head 8 , and bristles 82 are arranged around the rectifying water outlet holes 81 .

[0038] In this embodiment, the shaft of the bidirectional motor 1 has a radial swing mode in which it swings back and forth along its radial direction, and an axial telescopic mode in which it telescopes back and forth along its axial direction.

[0039] As an optional embodiment, the radial oscillation mode is combined with the bristles 82 of the hollow brush head 8 to achieve the tooth brushing function;

[0040] As an optional embodiment, the axial telescopic mode is combined with the pump body assembly 2, the hollow shaft 11 and the hollow brush head 8 to achieve the tooth flushing function.

[0041] In this embodiment, the pump assembly 2 includes a water suction pipe head 22, a diaphragm 23, a piston column 24, a silicone nozzle 25 and a piston 26 which are sequentially arranged in series inside the pump body 21;

[0042] The water suction pipe head 22 is used to seal and connect the hose 3 and the hollow shaft 11;

[0043] The diaphragm meson 23, the piston rod 24, the silicone nozzle 25 and the piston 26 cooperate to realize the one-way flow of the liquid and prevent the liquid from flowing back.

[0044] Therefore, the liquid in the water tank 4 can only flow out of the passage in one direction under the action of the pump body 21, thereby ensuring the stable water flow.

[0045] In this embodiment, one end of the hose 3 is connected to the hollow shaft 11 , and the other end extends to the lower part of the water tank 4 to stably extract the liquid in the water tank 4 .

[0046] Therefore, when the user holds the electric toothbrush, the hose 3 is always stably placed in the liquid at the bottom of the water tank 4, thus avoiding water flow interruption caused by empty suction.

[0047] In this embodiment, a soft silicone ring 9 is embedded in the joint between the hollow shaft 11 and the top opening of the brush handle 7 to provide a waterproof seal for the movement 5 .

[0048] Therefore, the liquid flowing out of the hollow brush head 8 cannot penetrate into the movement, ensuring the safe and stable operation of the equipment.

[0049] In this embodiment, when the user inputs a brushing instruction through the control panel 51, the control panel 51 controls the bidirectional motor 1 to operate in a radial oscillation mode, and the hollow shaft 11 drives the bristles 82 to generate high-frequency reciprocating oscillations in the radial direction. Thus, the user can use the high-frequency reciprocating oscillations of the bristles 82 to clean the tooth surface.

[0050] In this embodiment, when the user inputs a flushing command via the control panel 51, the control panel 51 controls the bidirectional motor 1 to operate in an axial telescopic mode. The hollow shaft 11 drives the piston 26 to perform high-frequency radial reciprocating motion within the pump body 21, thereby unidirectionally exhausting gas and liquid from the water tank 4 through the passage formed by the hose 3, the pump body assembly 2, the hollow shaft 11, and the hollow brush head 8.

[0051] Liquid is ejected at high speed from the rectifying water outlet 81 to form a water floss for flushing the gaps between teeth.

[0052] Therefore, the liquid jet pumped out from the rectifying water outlet 81 is parallel to the bristles, and can be used to rinse the gaps between teeth at a stable and high speed without replacing the brush head with other components. It is convenient to use and extremely practical.

[0053] In summary, the electric toothbrush with flushing function involved in the present invention has the same appearance as an ordinary electric toothbrush. It has a built-in water tank and pump body assembly, a hollow brush head, and a bidirectional motor with a hollow shaft that can operate in dual modes. Without changing the appearance and weight, the bidirectional motor is combined with the pump body assembly to realize the brushing function and the flushing function without adding equipment such as a water pump motor independent of the bidirectional motor. It is easy to use, highly practical, and provides an excellent user experience.

Claims

1. An electric toothbrush with a teeth flushing function, characterized in that: include: A bidirectional motor 1 having a hollow shaft 11, the lower end of the bidirectional motor 1 being connected to a hose 3 via a pump assembly 2, the bidirectional motor 1, the pump assembly 2 and the water tank 4 being sequentially arranged inside a movement 5; A control panel 51 electrically connected to control the bidirectional motor 1 is arranged on the outside of the movement 5, and a protruding battery compartment 52 is arranged on the bottom of the outside of the movement 5. The battery compartment 52 is used to install a battery 6 electrically connected to the control panel 51, so as to supply power to the bidirectional motor 1 via the control panel 51; The movement is installed inside the brush handle 7, and the movement 5 and the water tank 4 are encapsulated by a base 71; The top of the hollow shaft 11 is provided with a plug-in structure adapted to the hollow brush head 8, which protrudes out of the top opening of the brush handle 7 and is firmly inserted into the bottom of the hollow brush head 8, and the hose 3, the pump body assembly 2, the hollow shaft 11 and the hollow brush head 8 are sequentially connected to form a passage; A plurality of rectifying water outlet holes 81 are formed on the top side of the hollow brush head 8 , and bristles 82 are arranged around the rectifying water outlet holes 81 .

2. The electric toothbrush with teeth flushing function according to claim 1, characterized in that: include: The shaft of the bidirectional motor 1 has a radial swing mode for reciprocating in its radial direction, and an axial telescopic mode for reciprocating in its axial direction. The radial oscillation mode cooperates with the bristles 82 of the hollow brush head 8 to achieve the function of brushing teeth; The axial telescopic mode cooperates with the pump body assembly 2, the hollow shaft 11 and the hollow brush head 8 to achieve the function of flushing teeth.

3. The electric toothbrush with teeth flushing function according to claim 1, characterized in that: include: The pump assembly 2 comprises a water suction pipe head 22, a diaphragm meson 23, a piston rod 24, a silicone nozzle 25 and a piston 26 which are sequentially arranged in series inside the pump body 21; The water suction pipe head 22 is used to seal and connect the hose 3 and the hollow shaft 11; The diaphragm meson 23, the piston rod 24, the silicone nozzle 25 and the piston 26 cooperate to realize the one-way flow of liquid and avoid the backflow of liquid.

4. The electric toothbrush with teeth flushing function according to claim 1, characterized in that: include: One end of the hose 3 is connected to the hollow shaft 11 , and the other end extends to the lower part of the water tank 4 to stably extract the liquid in the water tank 4 .

5. The electric toothbrush with teeth flushing function according to claim 1, characterized in that: include: A soft silicone ring 9 is embedded in the joint between the hollow shaft 11 and the top opening of the brush handle 7 to provide a waterproof seal for the movement 5 .

6. The electric toothbrush with teeth flushing function according to claim 2, characterized in that: include: When the user inputs a brushing instruction through the control panel 51, the control panel 51 controls the bidirectional motor 1 to operate in a radial swing mode, and the hollow shaft 11 drives the bristles 82 to generate high-frequency reciprocating swings in the radial direction.

7. The electric toothbrush with teeth flushing function according to claim 2, characterized in that: include: When the user inputs a tooth flushing instruction through the control panel 51, the control panel 51 controls the bidirectional motor 1 to operate in the axial telescopic mode, and the hollow shaft 11 drives the piston 26 to perform high-frequency radial reciprocating motion in the pump body 21, and the gas and the liquid in the water tank 4 are discharged in one direction through the passage formed by the hose 3, the pump body assembly 2, the hollow shaft 11 and the hollow brush head 8; The liquid is ejected at high speed from the rectifying water outlet 81 to form a water floss for flushing the gaps between teeth.

Citation Information

Patent Citations

  • Electric toothbrush with tooth irrigation function

    CN112891005A

  • Tooth cleaner with replaceable functional component

    CN114010355A

  • Electric toothbrush with tooth washing function

    CN114010358A

  • Electric toothbrush

    CN214908519U

  • Electric toothbrush and tooth washing all-in-one machine

    CN217853442U