CN216724839U

CN216724839U - Electric tooth brush

Info

Publication number: CN216724839U
Application number: CN202122721565.7U
Authority: CN
Inventors: 王�琦
Original assignee: Shenzhen Xiyali Technology Co ltd
Current assignee: Shenzhen Xiyali Technology Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-06-14
Anticipated expiration: 2031-11-08

Abstract

The utility model discloses an electric toothbrush. The electric toothbrush comprises a main machine and a brush head arranged on the main machine; the main machine comprises a pump for outputting liquid media, the brush head comprises a spraying structure, and the spraying structure is connected with the pump in a liquid guiding mode and is used for spraying the liquid media output by the pump in a spraying mode. In the utility model, after the tooth brushing is finished, the pump can transmit liquid oral cleaning liquid or disinfectant into the brush head and then spray the liquid oral cleaning liquid or disinfectant into the oral cavity in a spraying mode through the spraying structure of the brush head; the mouth wash bottle does not need to be additionally arranged, so that the use is convenient; and, the form through the spraying is cleaned the oral cavity, can be more comprehensive, more even, more degree of depth clean the oral cavity, and the clean dynamics is better, can improve user's use sense.

Description

Electric tooth brush

Technical Field

The utility model relates to the field of toothbrushes, in particular to an electric toothbrush.

Background

As known from the related art, the mouth is cleaned by using the mouthwash after the tooth brushing is finished, so that the antibacterial effect is better. In the conventional oral cavity cleaning, the oral cavity is cleaned by rinsing with mouth wash. Under the condition, a bottle for containing mouthwash needs to be additionally arranged, so that the carrying is inconvenient; when gargling, the amount of the mouthwash cannot be accurately controlled, and the waste of the mouthwash can be caused; in addition, when the mouth wash is carried out, the gargle is contained in the mouth, so that the gargle rolls in the mouth to take away stains and bacteria on teeth, but the flow of the gargle in the mouth is smooth, only the surface cleaning can be carried out, and the cleaning force is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an improved electric toothbrush.

The technical scheme adopted by the utility model for solving the technical problems is as follows: constructing an electric toothbrush, wherein the electric toothbrush comprises a main machine and a brush head arranged on the main machine; the main machine comprises a pump for outputting liquid media, the brush head comprises a spraying structure, and the spraying structure is connected with the pump in a liquid guiding mode and is used for spraying the liquid media output by the pump in a spraying mode.

Preferably, the spraying structure comprises a plurality of flow guide channels connected with the pump liquid guide, a vortex collecting cavity for forming a vortex flow of the liquid flowing out of the flow guide channels, and a spray hole for spraying the vortex flow in a spraying mode;

the plurality of flow guide channels are spirally distributed around the vortex collecting cavity and are respectively communicated with the vortex collecting cavity; the spray holes are communicated with the vortex collecting cavity.

Preferably, the side wall of the flow guide channel is higher than the vortex collecting cavity, an impact inclined plane for forming liquid flow into a radial state is arranged on the side wall, and the impact inclined plane is arranged at the inlet of the vortex collecting cavity and opposite to the inlet end of the flow guide channel.

Preferably, the brush head further comprises a shaft part mounted on the main machine, a main body part arranged on the shaft part, bristles arranged on the main body part and a plug body;

the plug body comprises a convex part, and the main body part is provided with a groove which is opposite to the bristles; the convex part is arranged in the groove, the side wall of the convex part is matched with the side wall and the bottom end of the groove to form a plurality of flow guide channels, and the bottom end of the convex part is matched with the middle part of the bottom end of the groove to form the vortex collecting cavity; the spray holes penetrate through the bottom end of the groove and the side where the bristles are located;

the rod part is respectively connected with the pump and the guide channels for guiding liquid.

Preferably, the electric toothbrush further comprises a reservoir for storing a liquid medium, the reservoir being in fluid communication with the pump.

Preferably, the reservoir is detachably connected to the host machine, and the volume of the reservoir is 40-60 ML.

Preferably, the electric toothbrush further comprises a liquid transition ball disposed within the reservoir, a liquid conduit retaining the liquid transition ball at a bottom of the reservoir;

the liquid transition ball comprises a liquid inlet and a second liquid outlet communicated with the liquid pipeline; the liquid pipeline is connected with the pump drainage.

Preferably, the liquid inlet of the liquid transition ball is arranged corresponding to the bottom of the liquid reservoir; the liquid transition ball is provided with at least one liquid inlet groove, one end of the at least one liquid inlet groove is communicated with the liquid inlet, and the other end of the at least one liquid inlet groove extends to the side wall of the liquid transition ball;

the electric toothbrush also comprises a filter screen for separating the liquid inlet of the liquid transition ball from the second liquid outlet.

Preferably, the main machine further comprises a motor, the motor comprises a central shaft for mounting the brush head and outputting sound wave vibration, the central shaft comprises a communication channel which is axially communicated, and the communication channel is respectively connected with the pump and the spraying structure for liquid guiding;

the electric toothbrush further comprises a soft first connecting piece used for keeping the vibration force of the motor and a hard second connecting piece used for pressing water, the first connecting piece is arranged between the central shaft and the first liquid outlet of the pump in a sealing and enclosing mode, and the second connecting piece is arranged on the periphery of the first connecting piece in a sealing and enclosing mode.

Preferably, the first end of the first connecting piece and the first connecting end of the second connecting piece are both arranged in a sealing manner with the first end face of the pump;

the second end of the first connecting piece and the second end face of the motor are arranged at intervals, the second end of the first connecting piece comprises a first opening close to the second end face of the motor and a second opening far away from the second end face of the motor, the inner diameter of the first opening is larger than that of the second opening, and a sealing inclined plane is formed;

and the second connecting end of the second connecting piece is respectively arranged with the first connecting piece and the second end face of the motor in a sealing way.

The electric toothbrush has the following beneficial effects:

after the teeth are brushed, the pump can transmit liquid oral cleaning liquid or disinfectant into the brush head, and then the liquid oral cleaning liquid or disinfectant is sprayed into the oral cavity in a spraying mode through the spraying structure of the brush head; the mouth wash bottle does not need to be additionally arranged, so that the use is convenient; and, the form through the spraying is cleaned the oral cavity, can be more comprehensive, more even, more degree of depth clean the oral cavity, and the clean dynamics is better, can improve user's use sense.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic perspective view of an electric toothbrush in some embodiments of the present invention;

FIG. 2 is an exploded view of the powered toothbrush of FIG. 1;

FIG. 3 is another exploded schematic view of the powered toothbrush of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the powered toothbrush of FIG. 1;

figure 5 is an exploded view of the head of figure 4;

FIG. 6 is a schematic view of a connection structure of a liquid transition ball and a liquid pipeline;

FIG. 7 is a partial enlarged view of area A shown in FIG. 4;

FIG. 8 is an enlarged partial view of area C of FIG. 5;

fig. 9 is a partially enlarged view of the region B shown in fig. 4.

In the drawing, 1 is a main machine, 11 is a shell, 111 is an internal thread, 12 is a pump, 121 is a liquid inlet, 122 is a first liquid outlet, 123 is a first end face, 124 is a connecting shaft, 13 is a motor, 131 is a central shaft, 1311 is a communication channel, 132 is a second end face, 133 is a motor main body, 14 is a support, 15 is a rechargeable battery, 16 is a charging interface, 17 is a main board, 2 is a brush head, 21 is a rod part, 211 is a transmission channel, 22 is a main body part, 221 is a groove, 2211 is a first groove body, 22111 is a flow guiding groove, 221111 is a side wall, 22112 is a concave surface, 2212 is a second groove body, 22121 is a flow gap, 222 is a flow guiding channel, 223 is a vortex collecting cavity, 224 is a spray hole, 225 is an impact inclined plane, 226 is a mounting groove, 227 is a first flow increasing groove, 228 is a communication groove, 23 is a brush, 24 is a plug body, 241 is a connecting part, 2411 is a second flow increasing groove, 242 is a convex part, 31 is a liquid reservoir, 311. the liquid storage device comprises a liquid storage body, a neck part 312, a neck part 3121, external threads, a liquid transition ball 32, a liquid inlet 321, a liquid inlet 322, a second liquid outlet 323, a liquid inlet groove 33, a liquid pipeline 34, a filter screen 41, a first connecting piece 411, a first end 412, a second end 412, a first opening 4121, a second opening 4122, a second opening 4123, a sealing inclined plane 42, a second connecting piece 421, a first connecting end 422, a second connecting end 6, a sealing piece and a connecting pipe 7.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not used as limitations of the present invention.

Fig. 1 to 4 show an electric toothbrush according to some embodiments of the present invention, which has a tooth brushing function including cleaning of teeth by ultrasonic vibration and a sterilization function including spraying a liquid medium in the form of a spray, thereby further sterilizing the oral cavity after completion of tooth brushing, resulting in a better antibacterial effect. Wherein, the liquid medium can be oral cleaning liquid or disinfectant, and also can be liquid medicine.

As shown in fig. 1 to 4, the electric toothbrush includes a main body 1, a brush head 2 and a liquid reservoir 31, wherein the brush head 2 is detachably mounted at a first end of the main body 1, and the liquid reservoir 31 is detachably mounted at a second end of the main body 1. The liquid medium is stored in the liquid reservoir 31, and the brush head 2 comprises a spraying structure; the main machine 1 is respectively connected with the liquid reservoir 31 and the spraying structure in a liquid guiding manner, so that the liquid medium in the liquid reservoir 31 can be transmitted to the brush head 2 through the main machine 1, and then the liquid medium is sprayed out in a spraying manner through the spraying structure of the brush head 2.

As shown in fig. 3 and 4, the brush head 2 includes a shaft portion 21 attached to the main body 1, a main body portion 22 provided at an end of the shaft portion 21 remote from the main body 1, bristles 23 provided on the main body portion 22, and a plug 24, and the spray structure is provided on the main body portion 22. The rod 21 is provided with an axial transmission channel 211, and the transmission channel 211 leads the liquid of the main machine 1 and the spraying structure to be communicated.

As shown in fig. 4, 5, 7 and 8, the main body 22 is provided with a groove 221 and a mounting groove 226, the groove 221 and the mounting groove 226 are disposed opposite to the bristles 23, the groove 221 is disposed close to the bristles 23, and the mounting groove 226 is disposed away from the bristles 23. The groove 221 includes a first slot 2211 close to the brush 23 and a second slot 2212 far away from the brush 23, the first slot 2211 and the second slot 2212 are arranged in a step shape, and the radial size of the first slot 2211 is smaller than that of the second slot 2212.

The cross sections of the first and

second slot bodies

2211 and 2212 may be circular, the first slot body 2211 is provided with a plurality of flow guide slots 22111, and each flow guide slot 22111 is continuously disposed on the side wall and the bottom end of the first slot body 2211. The middle of the bottom end of the first slot 2211 is concave 22112, and is surrounded by the guiding grooves 22111, and the guiding grooves 22111 are spirally distributed. The radial dimension of the second slot 2212 is greater than the radial dimension of the first slot 2211 to expose the entrance of each flow guide 22111 to the side wall 221111 to guide the flow of liquid into the flow guide 22111.

The side wall 221111 of the diversion trench 22111 located at the bottom end of the first slot 2211 is higher than the concave surface 22112, and the first slot 2211 is further provided with an impact inclined plane 225. Specifically, the impact slope 225 is disposed on the side wall 221111 of the flow guide groove 22111 located at the bottom end, and the side walls 221111 of the flow guide grooves 22111 at the bottom end are disposed continuously to surround the concave surface 22112 on the inner side; impact ramp 225 is disposed between side wall 221111 of flow guide 22111 and concave surface 22112, i.e., at the entrance of the flow of liquid from flow guide 22111 into concave surface 22112, opposite the entrance end of flow guide 22111.

One orifice 224 may be provided, and the orifice 224 may be located at the concave surface 22112, and may be located at the center of the concave surface 22112. The nozzle 224 penetrates the bottom end of the first groove 2211 of the main body 22 and the end of the brush 23, and can spray the mist from the end of the brush 23.

The groove 221 may be disposed in the axial middle of the main body 22, the mounting groove 226 may be in a strip shape, the mounting groove 226 is disposed on one side of the second slot 2212 away from the bristles 23, the mounting groove 226 and the second slot 2212 are in a step shape, and one end of the mounting groove 226 close to the rod 21 extends to a joint with the rod 21.

The main body 22 is provided with a first flow increasing groove 227 for outputting a liquid flow from the bottom end of the mounting groove 226 along the side close to the brush 23, the first flow increasing groove 227 is communicated with the mounting groove 226, the first flow increasing groove 227 is strip-shaped, one end of the first flow increasing groove penetrates through the second groove 2212, the other end of the first flow increasing groove extends towards the rod 21, and the mounting groove 226 is closer to the rod 21 than the first flow increasing groove 227. The depth of the first circulation grooves 227 is less than the depth of the second groove body 2212. The main body 22 has a communication groove 228 at one end thereof near the rod 21 to communicate the transfer passage 211 with the first pressurizing groove 227. The liquid flow output from the main body 1 thus flows from the transfer passage 211 into the first flux groove 227 via the communication groove 228, and flows from the first flux groove 227 into the flow guide groove 22111 of the first groove body 2211 via the second groove body 2212.

The plug 24 is adapted to a corresponding groove of the main body 22, and specifically, the plug 24 includes a connecting portion 241 and a protrusion 242 disposed on the connecting portion 241, wherein the connecting portion 241 is strip-shaped and adapted to the mounting groove 226. The protrusion 242 has a cylindrical shape, and the outer diameter of the protrusion 242 is equal to the radial dimension of the first groove 2211. The protrusion 242 is located at one end of the connecting portion 241, a second flow increasing groove 2411 is formed from the protrusion 242 to the other end of the connecting portion 241 on the connecting portion 241, and the second flow increasing groove 2411 is matched with the first flow increasing groove 227.

The plug body 24 is mounted in the body portion 22 to mate with a corresponding groove. Specifically, the connecting portion 241 is received in the mounting groove 226, and the second flow increasing groove 2411 and the first flow increasing groove 227 cooperate to form a flow increasing groove, so as to increase the flow rate of the entering liquid. The protrusion 242 is inserted into the groove 221, and the lower portion of the protrusion 242 is tightly fitted into the first slot 2211, so that the sidewall of the lower portion of the protrusion 242 and the guiding slot 22111 of the first slot 2211 define the guiding passage 222, and the sidewall of the upper portion of the protrusion 242 and the sidewall of the second slot 2212 are spaced apart to form a flow gap 22121 communicated with each guiding passage 222.

The length of the protrusion 242 is less than the depth of the groove 221, and the bottom end of the protrusion 242 is spaced from the bottom end of the groove 221, so that the bottom end of the protrusion 242 cooperates with the concave surface 22112 to form the vortex collecting cavity 223. The orifices 224 extend through the vortex collecting chamber 223 and the side of the bristles 23 so that the spray can be emitted from the end of the bristles 23.

It is understood that the cross-section of the protrusion 242, the first slot 2211 and the second slot 2212 is not limited to be circular, and may be provided in other shapes, and the above-mentioned matching relationship may be achieved. The plurality of injection holes 224 may be provided, and the plurality of injection holes 224 may be uniformly distributed on the concave surface 22112 at intervals. Guide slits 22111 may be provided in 3 or more numbers to form the same number of guide passages 222, and the plurality of guide slits 22111 are arranged at regular intervals.

In this embodiment, the flow guide channels 222, the vortex collecting cavity 223 and the spray holes 224 together form a spray structure of the brush head 2, that is, a plurality of flow guide channels 222 are spirally distributed around the vortex collecting cavity 223 and are respectively communicated with the vortex collecting cavity 223; the nozzle holes 224 communicate with the vortex collecting chamber 223.

The spraying principle is that the main machine 1 provides high-speed liquid flow with the pressure of more than 20psi, the high-speed liquid flow flows into the flow increasing grooves through the transmission channels 211 through the communication grooves 228 and then downwards flows from the flow guide channels 222 through the flow gaps 22121, the liquid flow flowing out of the flow guide channels 222 forms vortex flows in the vortex collecting cavity 223, and the vortex flows are sprayed out of the spray holes 224 in a spraying mode. The impact inclined plane 225 is arranged so that the liquid flowing out of the plurality of flow guide channels 222 can collide with the impact inclined plane 225 when flowing into the inlet of the vortex collecting cavity 223, and a larger force is provided for the liquid flow, so that the liquid flow is formed in a radial rotating state, and thus, the spray is better formed.

In the utility model, the mouth cavity can be cleaned more deeply by forming the spray with higher flow speed and utilizing the impact force of the spray; and the spraying is comparatively fine and smooth, can carry out more comprehensive, more even cleanness to the oral cavity.

As shown in fig. 3 to 5, the main body 1 includes a housing 11, a motor 13 axially disposed in the housing 11, and a pump 12, wherein the housing 11 may be cylindrically disposed for easy holding, the motor 13 is disposed near a first end of the main body 1, the pump 12 is disposed near a second end of the main body 1, and the two are connected for guiding liquid; the motor 13 is in fluid connection with the brush head 2 and the pump 12 is in fluid connection with the reservoir 31, so that the liquid medium pumped by the pump 12 from the reservoir 31 can be transferred to the brush head 2 via the motor 13.

The motor 13 includes a motor body 133 and a central shaft 131 penetrating the motor body 133, the central shaft 131 is used for outputting sound wave vibration, two ends of the central shaft 131 are respectively exposed out of the motor body 133, and the central shaft 131 is provided with an axially through communication channel 1311. The end of the central shaft 131 near the head 2 is used to mount the head 2 and transmit the vibration to the head 2. The end of the central shaft 131 can be inserted into the transmission channel 211 of the rod 21, and the end of the central shaft 131 serves as a liquid outlet to transmit the liquid medium into the transmission channel 211. Further, the end of the central shaft 131 is circumferentially sleeved with a sealing element 6, and the sealing element 6 can be a sealing ring for sealing the central shaft 131 and the inner wall of the rod 21 to seal water. The other end of the central shaft 131 is connected with the pump 12 as a liquid inlet.

The pump 12 includes an inlet 121 connected to the liquid guiding of the liquid storage device 31, and a first outlet 122 connected to the liquid guiding of the motor 13, wherein a connecting shaft 124 is disposed at an end of the pump 12 close to the motor 13 for communicating with the inlet of the motor 13, and the first outlet 122 is disposed through the connecting shaft 124. Wherein the pump 12 may be a miniature diaphragm pump to output a constant pulse-free jet, and the pressure of the pump 12 is above 20psi to output a high-velocity liquid stream.

A sealing structure is arranged between the liquid inlet of the motor 13 and the liquid outlet of the pump 12. As shown in fig. 4 and 9, the seal structure includes a first connector 41 and a second connector 42. Specifically, the first connecting member 41 has a substantially cylindrical shape, and the first connecting member 41 is sealingly provided around the outer peripheries of the central shaft 131 and the connecting shaft 124. The first connecting member 41 may be made of a soft material, such as silicone rubber, etc. The first end 411 of the first connecting member 41 is disposed in a sealing manner with the first end face 123 of the pump 12, and the second end 412 is disposed at a distance from the second end face 132 of the motor 13, so that water sealing of the pump 12 is achieved through the first connecting member 41.

Further, the second end 412 of the first connecting member 41 includes a first opening 4121 near the second end face 132 of the motor 13 and a second opening 4122 far from the second end face 132 of the motor 13, and the inner diameter of the first opening 4121 is larger than that of the second opening 4122, forming a sealing bevel 4123. This sealed inclined plane 4123's setting when realizing that motor 13 seals water, guarantees motor 13's vibrations dynamics for the vibrations dynamics can not diminish because of the setting of connecting piece.

The second connecting member 42 may have a cylindrical shape and is fitted over the outer circumference of the first connecting member 41. The first connection end 421 of the second connection member 42 is disposed in a sealing manner with the first end face 123 of the pump 12, and the second connection end 422 is disposed in a sealing manner with the first connection member 41 and the second end face 132 of the motor 13. The second connecting member 42 is made of hard material, such as plastic, and can press water, so that water leakage due to deformation under the action of water pressure is avoided.

Host 1 still includes support 14, rechargeable battery 15, the interface 16 that charges, mainboard 17, and motor 13, pump 12, rechargeable battery 15 install on support 14, and the interface 16 that charges installs on casing 11 and with rechargeable battery 15 electric connection. The battery and the pump 12 may be arranged side by side to save space. The main board 17 is used for arranging control circuits for tooth brushing and disinfection, and tooth brushing buttons and disinfection buttons which are electrically connected with the corresponding control circuits, so that corresponding functions can be realized through the related buttons.

The housing 11 has an opening at a second end of the main body 1, and an inner wall surface of the opening is formed with an internal thread 111 to be screwed with the reservoir 31. The liquid storage device 31 is used for storing liquid media, the liquid storage device 31 comprises a liquid storage body 311 and a neck 312 arranged above the liquid storage body 311, and an external thread 3121 is formed on the outer wall surface of the neck 312 so as to be screwed with the host 1. In the utility model, the liquid storage device 31 is screwed on the main machine 1, so that a bottle for containing mouthwash is not additionally arranged, and the convenience is effectively improved.

As shown in fig. 3, 4 and 6, the electric toothbrush further includes a liquid transition ball 32 and a liquid pipeline 33, the liquid transition ball 32 is disposed in the liquid storage body 311, the liquid transition ball 32 includes a liquid inlet 321 and a second liquid outlet 322, the liquid pipeline 33 is communicated with the second liquid outlet 322, and the liquid pipeline 33 may be a hard tube for holding the liquid transition ball 32 at the bottom of the liquid storage 31; wherein, the liquid pipe 33 can be communicated with the liquid inlet 121 of the pump 12 through the connecting pipe 7. So that the pump 12 pumps the liquid medium in the reservoir 31 to be transferred to the transfer channel 211 via the central shaft 131 of the motor 13.

The liquid inlet 321 is disposed corresponding to the bottom of the liquid storage 31, and at least one liquid inlet groove 323 is disposed at the bottom of the liquid storage 31 for facilitating liquid inlet of the liquid inlet 321. Specifically, the at least one liquid inlet groove 323 is disposed on the outer surface of the bottom of the liquid reservoir 31, and one end of the liquid inlet groove 323 is communicated with the liquid inlet 321, and the other end extends to the sidewall of the liquid transition ball 32. The number of the liquid inlet grooves 323 is four, and the liquid inlet grooves are uniformly communicated with the circumferential direction of the liquid inlet 321.

A filter screen 34 is disposed in the liquid storage 31, the filter screen 34 separates the liquid inlet 321 from the second liquid outlet 322, wherein the filter screen 34 can be attached to the inner bottom surface of the liquid storage 31 and corresponds to the liquid inlet 321, so as to filter impurities in the liquid medium. Wherein the volume of the reservoir 31 can be 40-60ML, which can be used as a single oral cleaning dosage, thereby precisely controlling the dosage of the liquid medium and preventing the waste of the liquid medium.

The electric toothbrush has the working principle that firstly, toothpaste is coated on the bristles 23 of the brush head 2, the brushing function button is pressed, and the teeth of a user are cleaned through the ultrasonic vibration of the brush head 2; after the teeth are brushed, the disinfection function button is started, the spraying function is started, and the spraying is generated at the brush head 2 and enters the oral cavity, so that the oral cavity is cleaned comprehensively, uniformly and deeply.

It is to be understood that the foregoing examples, while indicating the preferred embodiments of the utility model, are given by way of illustration and description, and are not to be construed as limiting the scope of the utility model; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims

1. An electric toothbrush is characterized by comprising a main machine (1) and a brush head (2) arranged on the main machine (1); the main machine (1) comprises a pump (12) for outputting a liquid medium, and the brush head (2) comprises a spraying structure which is in liquid guide connection with the pump (12) and is used for spraying the liquid medium output by the pump (12) in a spraying mode.

2. The electric toothbrush according to claim 1, wherein the spray structure comprises a plurality of guide channels (222) connected to the liquid guide of the pump (12), a vortex collecting chamber (223) for forming a vortex flow of the liquid flowing out through the plurality of guide channels (222), and a spray hole (224) for spraying the vortex flow;

the plurality of flow guide channels (222) are spirally distributed around the vortex collecting cavity (223) and are respectively communicated with the vortex collecting cavity (223); the jet holes (224) are communicated with the vortex collecting cavity (223).

3. The electric toothbrush according to claim 2, wherein a side wall (221111) of the guide passage (222) is disposed higher than the vortex collecting chamber (223), an impact slant (225) for forming a radial state of the liquid flow is provided on the side wall (221111), and the impact slant (225) is disposed at an inlet of the vortex collecting chamber (223) and is disposed opposite to an inlet end of the guide passage (222).

4. The electric toothbrush according to claim 2, wherein the brush head (2) further comprises a shaft portion (21) mounted on the main body (1), a main body portion (22) provided on the shaft portion (21), bristles (23) provided on the main body portion (22), and a plug body (24);

the plug body (24) comprises a convex part (242), and the main body part (22) is provided with a groove (221) opposite to the bristles (23); the convex part (242) is arranged in the groove (221), the side wall of the convex part (242) is matched with the side wall and the bottom end of the groove (221) to form a plurality of flow guide channels (222), and the bottom end of the convex part (242) is matched with the middle part of the bottom end of the groove (221) to form the vortex collecting cavity (223); the spray holes (224) penetrate through the bottom end of the groove (221) and the side where the bristles (23) are located;

the rod part (21) is respectively connected with the pump (12) and the guide channels (222) in a liquid guide manner.

5. The electric toothbrush according to claim 1, further comprising a reservoir (31) for storing a liquid medium, the reservoir (31) being in fluid connection with the pump (12).

6. The electric toothbrush according to claim 5, wherein the reservoir (31) is detachably connected to the main machine (1), and the volume of the reservoir (31) is 40-60 ML.

7. The electric toothbrush according to claim 5, further comprising a liquid transition ball (32) disposed within the reservoir (31), a liquid conduit (33) retaining the liquid transition ball (32) at a bottom of the reservoir (31);

the liquid transition ball (32) comprises a liquid inlet (321) and a second liquid outlet (322) communicated with the liquid pipeline (33); the liquid pipeline (33) is connected with the pump (12) in a liquid guiding way.

8. The electric toothbrush according to claim 7, characterized in that the liquid inlet (321) of the liquid transition ball (32) is arranged corresponding to the bottom of the liquid reservoir (31); at least one liquid inlet groove (323) is arranged on the liquid transition ball (32), one end of the at least one liquid inlet groove (323) is communicated with the liquid inlet (321), and the other end of the at least one liquid inlet groove extends to the side wall of the liquid transition ball (32);

the electric toothbrush also comprises a filter screen (34) used for separating the liquid inlet (321) of the liquid transition ball (32) from the second liquid outlet (322).

9. The electric toothbrush according to claim 1, wherein the main body (1) further comprises a motor (13), the motor (13) comprises a central shaft (131) for mounting the brush head (2) and outputting sound wave vibration, the central shaft (131) comprises a communication channel (1311) which axially penetrates, and the communication channel (1311) is respectively in fluid-conducting connection with the pump (12) and the spraying structure;

the electric toothbrush further comprises a soft first connecting piece (41) used for keeping the vibration force of the motor (13) and a hard second connecting piece (42) used for pressing water, the first connecting piece (41) is arranged between the central shaft (131) and the first liquid outlet (122) of the pump (12) in a sealing surrounding mode, and the second connecting piece (42) is arranged on the periphery of the first connecting piece (41) in a sealing surrounding mode.

10. The electric toothbrush according to claim 9, characterized in that the first end (411) of the first connector (41) and the first connection end (421) of the second connector (42) are each arranged in a sealing manner with the first end face (123) of the pump (12);

the second end (412) of the first connecting piece (41) is arranged at a distance from the second end face (132) of the motor (13), the second end (412) of the first connecting piece (41) comprises a first opening (4121) close to the second end face (132) of the motor (13) and a second opening (4122) far away from the second end face (132) of the motor (13), the inner diameter of the first opening (4121) is larger than that of the second opening (4122), and a sealing inclined plane (4123) is formed;

and a second connecting end (422) of the second connecting piece (42) is respectively arranged with the first connecting piece (41) and the second end face (132) of the motor (13) in a sealing way.