CN115778601A

CN115778601A - Electric toothbrush

Info

Publication number: CN115778601A
Application number: CN202211210054.1A
Authority: CN
Inventors: 梁勋进
Original assignee: Hangzhou Confession Aesthetics Technology Co ltd
Current assignee: Hangzhou Gaobai Liangpin Technology Co ltd
Priority date: 2022-07-18
Filing date: 2022-09-30
Publication date: 2023-03-14

Abstract

The invention relates to the technical field of oral cleaning, and particularly discloses an electric toothbrush which comprises a handle, a brush head, a driving device, a pump assembly and a liquid storage cavity, wherein the brush head is arranged on the handle; a driving device which is a linear motor formed by a mover reciprocating linearly with respect to a stator, the mover being a rod-shaped shaft having a hollow cavity; the pump assembly comprises a liquid inlet communicated with the liquid storage cavity, a liquid outlet communicated with the hollow cavity and a piston used for drawing liquid; the rotor is in transmission connection with the piston, and when moving, the rotor can drive the piston to move along with the rotor so as to apply pressure to liquid in the liquid storage cavity, so that the liquid enters the hollow cavity and is transmitted towards the direction of the brush head. This application electric toothbrush can realize that the brush head goes out water automatically and brush the head clean, reduces the bacterial growing of toothbrush.

Description

Electric toothbrush

Technical Field

The invention relates to the technical field of oral cleaning, in particular to an electric toothbrush.

Background

The electric toothbrush mainly uses the motor to drive the brush head to generate high-frequency vibration, so that the toothpaste is decomposed into fine foam to deeply clean slits between teeth, and meanwhile, the vibration of the brush hair can promote the blood circulation in the oral cavity, thereby having the massage effect on gum tissues.

The electric toothbrush can let us feel convenient when brushing teeth, but we need wash electric toothbrush after brushing teeth, most users do not carry out abluent consciousness and experience to electric toothbrush, at the in-process of washing electric toothbrush, the user often uses little water to wash electric toothbrush for the reason of using water wisely, perhaps rinse the toothbrush in aqueous for a few times, lead to electric toothbrush can't the sanitization, electric toothbrush breeds the bacterium virus easily like this, use the long-time not effectively abluent electric intelligent toothbrush can influence user's oral health on the contrary.

In view of the above problems, there is a need to develop an electric toothbrush capable of automatically cleaning a brush head.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide an electric toothbrush.

In order to achieve the purpose, the technical scheme of the invention is as follows: an electric toothbrush comprising a handle and a head, further comprising: a reservoir chamber for storing a liquid; a driving device which is a linear motor formed by a mover reciprocating linearly with respect to a stator, wherein the mover is a rod-shaped shaft having a hollow cavity; the pump assembly comprises a liquid inlet communicated with the liquid storage cavity, a liquid outlet communicated with the hollow cavity and a piston used for drawing liquid; the rotor is in transmission connection with the piston, and when moving, the rotor can drive the piston to move along with the rotor so as to apply pressure to liquid in the liquid storage cavity, so that the liquid enters the hollow cavity and is transmitted towards the direction of the brush head.

By adopting the technical scheme, the liquid medicine or water is discharged from the brush head, the brush head can be cleaned, the mouth cavity can be cleaned conveniently after the brush head is wetted, and the operation is convenient. Through the vibration of motor, make the brush hair produce vibrations, improve the clearance effect to the oral cavity, solved and appeared multiple bacterial growing problem in brush head and the oral cavity easily, further promote brush head and oral cavity cleaning effect. The water is discharged while brushing teeth, so that the tooth brushing is more convenient, and the experience and the use pleasure of consumers are also increased.

In a further scheme, the liquid storage cavity is detachably connected to one end, far away from the brush head, of the handle.

Through adopting above-mentioned technical scheme, can be convenient for add liquid medicine or water to the stock solution chamber, reduced and added water short circuit fault problems such as the water inlet that probably causes whole toothbrush. Can also conveniently clear the liquid storage cavity and reduce the possibility of bacterial breeding. If the function of automatic water outlet and cleaning of the toothbrush is not needed, the liquid storage cavity can be detached, and the toothbrush is lighter and more convenient to use.

In a further scheme, the hollow cavity is in sealing connection with the liquid outlet.

By adopting the technical scheme, the hollow cavity is hermetically connected with the liquid outlet, so that two functions of vibration and liquid outlet can be integrated into a whole, the product structure is simpler and more compact, and the design space and the flexibility of the handle are larger; the internal arrangement of the product is reduced, the vibration noise is lower, and the failure rate is also reduced. When the motor vibrates axially, liquid can move towards the center under the extrusion of the side wall of the handle, and the resistance for discharging the liquid is smaller due to the design of the hollow motor shaft, so that the liquid can be discharged from the brush head more favorably.

In a further aspect, the pump assembly includes a pump body, a check valve and a piston, the check valve is fixed in the pump body, and the piston is slidably disposed in the pump body.

Through adopting above-mentioned technical scheme, can change traditional structural design of pump, realize the function of pump jointly through pump package spare and motor, can realize longitudinal arrangement in structural arrangement, thereby reduce the diameter of radial size reduction handle, solved traditional electric toothbrush handle thick, the poor problem of experience nature.

In a further scheme, a liquid outlet pipeline is arranged in the brush head, the rotor penetrates through the brush head, and the hollow cavity is communicated with the liquid outlet pipeline.

Through adopting above-mentioned technical scheme, can be convenient for liquid from brush head discharge with the last well cavity intercommunication of drain pipe way.

In a further scheme, one end, far away from the brush head, of the rotor is connected with the piston, the piston is provided with a through hole, and the hollow cavity is communicated with the through hole.

By adopting the technical scheme, the hollow cavity can be communicated with the piston downwards, so that liquid can conveniently enter the hollow cavity from the piston.

According to a further scheme, one end, far away from the rotor, of the pump body is provided with a liquid inlet pipe communicated with the liquid inlet, the liquid inlet pipe is communicated with the liquid storage cavity, and the hollow cavity is communicated with the liquid storage cavity through the through hole and the liquid inlet pipe.

Through adopting above-mentioned technical scheme, can be with well cavity and stock solution chamber intercommunication, the liquid in the stock solution intracavity can be discharged from the brush head through well cavity.

In a further scheme, the one-way valve is arranged between the liquid inlet pipe and the piston.

Through adopting above-mentioned technical scheme, can be through the motion of piston and the opening and shutting of check valve with the water in the stock solution intracavity pass through the feed liquor pipe suction pump in vivo.

In a further scheme, a flexible valve is fixedly arranged in the piston through hole and provided with a thin opening, and the thin opening can be opened or closed by the flexible valve under the action of external force.

By adopting the technical scheme, the liquid entering the pump body can be pressed into the hollow cavity through the movement of the piston and the opening and closing of the flexible valve.

In a further scheme, when the piston moves away from the direction of the one-way valve, the one-way valve is opened, the thin opening of the flexible valve is closed, and liquid in the liquid storage cavity enters the pump body through the one-way valve; when the piston moves towards the direction of the one-way valve, the one-way valve is closed, the thin opening of the flexible valve is opened, and liquid in the pump body enters the hollow cavity.

Through adopting above-mentioned technical scheme, can realize that liquid enters into the cavity from the stock solution chamber through the combined action of motor and pump package spare in.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

1. the electric toothbrush solves the problem that various bacteria are easy to breed in the toothbrush head and the oral cavity, and further improves the cleaning effect of the toothbrush head and the oral cavity.

2. The detachable liquid storage cavity of the electric toothbrush reduces the faults of short circuit and the like of the toothbrush when water is added, can be cleaned conveniently, and is light and convenient to use.

3. According to the electric toothbrush, two functions of vibration and liquid outlet are integrated into a whole through the motor, and the design space and flexibility of the handle are larger; the vibration noise is smaller, and the failure rate is also reduced; the resistance to liquid discharge can be made smaller, and the liquid discharge from the brush head is facilitated.

4. The electric toothbrush is provided with the one-way valve and the flexible valve, so that water can be discharged from the toothbrush head more reliably and smoothly.

5. The electric toothbrush changes the structural design of the traditional pump, realizes longitudinal arrangement on the structural arrangement, and solves the problems of thick handle and poor experience of the traditional electric toothbrush.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.

Fig. 1 is a schematic view showing an external structure of an electric toothbrush of the present invention.

Fig. 2 is a schematic sectional view showing the construction of the electric toothbrush of the present invention.

Fig. 3 is an exploded view of the electric toothbrush of the present invention.

Fig. 4 is a schematic view showing a structure in which a motor is connected to a pump of the electric toothbrush of the present invention.

Fig. 5 is a sectional view schematically showing the connection of a motor and a pump of the electric toothbrush of the present invention.

Fig. 6 is a sectional view schematically showing the pump of the electric toothbrush of the present invention.

Fig. 7 is a schematic view showing the construction of a flexible valve of the electric toothbrush of the present invention.

Fig. 8 is a sectional view schematically showing the construction of a flexible valve of the electric toothbrush of the present invention.

Fig. 9 is a schematic view of the head structure of the electric toothbrush of the present invention.

Fig. 10 is a cross-sectional view of a head of the electric toothbrush of the present invention.

Reference numerals are as follows:

1. a brush head; 11. brushing; 12. a brush handle; 13. a liquid outlet pipeline; 2. a handle; 3. a motor; 31. a crankshaft; 32. a hollow cavity; 33. a body; 4. a pump; 41. a cylinder body; 42. a flexible valve; 43. a one-way valve; 44. a water-absorbing chamber; 45. a thin opening; 46. a liquid inlet pipe; 47. a piston; 5. a circuit board; 51. pressing a key; 6. a liquid storage cavity; 7. a charging seat; 71. a power line; 8. a battery.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of this patent does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used only to indicate relative positional relationships that may change when the absolute position of the object being described changes, which are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

The first embodiment is as follows:

referring to fig. 1, the present invention provides an electric toothbrush, which comprises a toothbrush head 1, a handle 2 and a charging base 7, wherein the charging base 7 is provided with a power cord 71 connected to a power source, and the handle 2 is placed in the charging base 7 to charge a battery 8. The handle 2 is provided with a key 51 for switching or adjusting the electric toothbrush.

Referring to fig. 2, a cross-sectional view of the electric toothbrush of the present invention is shown. The brush head 1 is provided with bristles 11, and the bristles 11 are fixedly arranged at the end part of the brush handle 12. The brush holder 12 is provided with a hollow liquid outlet pipe 13, the motor 3 is a linear motor formed by a rotor reciprocating linearly relative to a stator, the rotor is a crankshaft 31 with a hollow cavity 32, the crankshaft 31 is arranged in one end of the brush holder 12 far away from the brush hairs 11 in a penetrating manner, and the hollow cavity 32 in the crankshaft 31 is communicated with the liquid outlet pipe 13 in a sealing manner. The shaft 31 is arranged through the center of the machine body 33, one end of the shaft 31 far away from the brush head 1 is connected with the pump 4, and the pump 4 is communicated with the liquid storage cavity 6, thereby forming a sealed liquid channel communicated from the liquid storage cavity 6 to the liquid outlet pipeline 13. A battery 8 is arranged between the liquid storage cavity 6 and the pump 4, the brush handle 12 is arranged in the charging seat 7, and the battery 8 is charged in a wired or wireless mode. The pump 4 comprises a liquid inlet communicated with the liquid storage cavity 6, a liquid outlet communicated with the hollow cavity 32 and a piston 47 for drawing liquid. The shaft 31 can drive the piston 47 to move along with the shaft 31 when moving, so as to apply pressure to the liquid in the liquid storage cavity 6, and the liquid enters the hollow cavity 32 and is conveyed towards the direction of the brush head 1.

Fig. 3 is an exploded view of the electric toothbrush according to the present invention. The shaft 31 is detachably inserted into the brush head 1 and is relatively fixedly connected with the brush head 1. Stock solution chamber 6 demountable installation can be in 12 bottoms on the brush holder, can pull down stock solution chamber 6 when needing watered and add water, and stock solution chamber 6 is fixed with brush holder 12 through modes such as buckle or screw after having added water. The charging seat 7 and the handle 2 are designed in a split structure, when the toothbrush needs to be charged, the handle 2 is placed into the charging seat 7 to be charged, and when the toothbrush needs to be brushed, the toothbrush is taken out of the charging seat 7. A charging interface can also be arranged on the brush handle 12, and the battery 8 can be charged by directly switching on the power supply. The charging interface can be the same as the charging interface of the mobile phone, and the mobile phone charging power supply is directly used for charging.

Referring to fig. 4, a schematic structural view of the connection between the motor 3 and the pump 4 of the electric toothbrush of the present invention is shown. The shaft 31 is inserted into the body 33, one end of which is connected with the brush head 1, and the other end is connected with the pump 4. The motor 3 vibrates along the shaft 31 to drive the brush head 1 and the pump 4 to vibrate synchronously.

Referring to fig. 5 and 6, fig. 5 is a sectional view illustrating a connection between a motor 3 and a pump 4 of the electric toothbrush of the present invention, and fig. 6 is a sectional view illustrating the pump 4. The crankshaft 31 is arranged in the center of the machine body 33 in a penetrating way and is fixedly connected with the piston 47 of the pump 4, and the crankshaft 31 and the piston 47 are fixedly connected in a buckling way and can also be connected in other fixing ways such as a screw and the like. The piston 47 is slidably disposed in the cylinder 41 of the pump 4, the piston 47 is internally provided with a flexible valve 42, the flexible valve 42 is internally provided with a water suction cavity 44, the one-way valve 43 is fixedly disposed below the flexible valve 42 in the cylinder 41, the end of the pump 4 away from the motor 3 is provided with a liquid inlet pipe 46, and the flexible valve 42 is disposed between the liquid inlet pipe 46 and the flexible valve 42. The hollow chamber 32 is in sealed communication with the liquid inlet pipe 46 through the flexible valve 42 and the one-way valve 43.

Referring to fig. 7 and 8, the flexible valve 42 is schematically illustrated in appearance and cross-sectional configuration. The end of the flexible valve 42 is provided with a thin opening 45, and the flexible valve 42 is also provided with a water suction cavity 44 communicated with the thin opening 45.

Referring to fig. 9 and 10, the appearance and the sectional structure of the brush head 1 are shown. The brush head 1 is provided with a brush handle 12 and bristles 11, a liquid outlet pipeline 13 is arranged in the center of the brush handle 12, one end of the liquid outlet pipeline 13 is open, and the other end of the liquid outlet pipeline is communicated with the bristles 11.

The working process and principle of the electric toothbrush of the application are as follows: after the electric toothbrush is sufficiently charged on the charging seat 7, the handle 2 is taken down from the charging seat 7, the motor 3 is started to work by pressing the button 51, and the motor 3 vibrates in a reciprocating manner along the axial direction of the crankshaft 31. The motor 3 drives the brush head 1 to vibrate to clean the oral cavity teeth. When the brush head 1 or oral cavity water or liquid medicine need to be cleaned, the liquid storage cavity 6 is filled with water or liquid medicine in advance, the button 51 is started to spray water, the motor 3 vibrates axially to drive the piston 47 to move in the direction far away from the liquid storage cavity 6, the one-way valve 43 is opened, and the liquid in the liquid storage cavity 6 enters the water suction cavity 44 from the liquid inlet pipe 46. The motor 3 drives the piston 47 to move towards the direction close to the liquid storage chamber 6, the one-way valve 43 is closed, and the liquid in the water suction chamber 44 is extruded from the thin opening 45 of the flexible valve 42 and enters the hollow chamber 32 of the crankshaft 31. By repeating the above steps, the liquid in the liquid storage chamber 6 continuously enters the hollow chamber 32, and is finally ejected from the brush head 1 through the liquid outlet pipeline 13, so that the brush head 1 or the oral cavity is cleaned.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An electric toothbrush, includes handle and brush head, its characterized in that still includes:

a reservoir chamber for storing a liquid;

a driving device which is a linear motor formed by a mover reciprocating linearly with respect to a stator, the mover being a rod-shaped shaft having a hollow cavity; and

the pump assembly comprises a liquid inlet communicated with the liquid storage cavity, a liquid outlet communicated with the hollow cavity and a piston used for drawing liquid;

the rotor is in transmission connection with the piston, and when moving, the rotor can drive the piston to move along with the rotor so as to apply pressure to liquid in the liquid storage cavity, so that the liquid enters the hollow cavity and is transmitted towards the direction of the brush head.

2. The powered toothbrush as defined in claim 1, wherein the reservoir is removably connected to an end of the handle remote from the head.

3. The electric toothbrush of claim 1, wherein the hollow cavity is sealingly connected to the liquid outlet.

4. The powered toothbrush as defined in claim 3, wherein the pump assembly further comprises a pump body and a one-way valve secured within the pump body, the piston slidably disposed within the pump body.

5. The electric toothbrush of claim 3, wherein a liquid outlet pipe is disposed in the toothbrush head, the mover is inserted into the toothbrush head, and the hollow cavity is communicated with the liquid outlet pipe.

6. The electric toothbrush of claim 4, wherein an end of the mover away from the brush head is connected to the piston, the piston is provided with a through hole, and the hollow cavity is communicated with the through hole.

7. The electric toothbrush according to claim 6, wherein a liquid inlet pipe communicated with the liquid inlet is disposed at an end of the pump body away from the mover, the liquid inlet pipe is communicated with the liquid storage chamber, and the hollow chamber is communicated with the liquid storage chamber through the through hole and the liquid inlet pipe.

8. The electric toothbrush according to claim 7, wherein the check valve is provided between the liquid inlet pipe and the piston.

9. The electric toothbrush according to claim 8, wherein a flexible valve is fixedly arranged in the through hole of the piston, the flexible valve is provided with a thin opening, and the thin opening can be opened or closed by the flexible valve under the action of external force.

10. The electric toothbrush of claim 9, wherein when the piston moves away from the check valve, the check valve opens, the flexible valve orifice closes, and fluid in the fluid reservoir passes through the check valve into the pump body; when the piston moves towards the direction of the one-way valve, the one-way valve is closed, the thin opening of the flexible valve is opened, and liquid in the pump body enters the hollow cavity.