Electric toothbrush head and electric toothbrush

Abstract

The utility model provides a kind of electric toothbrush brush head and electric toothbrush, it is related to the technical field of daily necessities, the electric toothbrush brush head provided by the utility model includes: brush rod, the first end portion of brush rod is equipped with bristle face, the second end portion of brush rod is connected in handle;Brush rod is equipped with, at least one suction inlet, suction inlet is set in first end portion;Suction outlet, suction outlet is set in second end portion;At least one suction passage, suction passage is communicated in suction inlet and suction outlet.The electric toothbrush brush head provided by the utility model alleviates the technical problem of swallowing foam in prior art children.

Description

Technical Field

[0001] This utility model relates to the field of daily necessities technology, and more specifically, to an electric toothbrush head and an electric toothbrush. Background Technology

[0002] Currently, electric toothbrushes on the market have relatively limited functions, only meeting basic brushing needs and lacking thoughtful designs for young children. Young children often unconsciously swallow toothpaste foam while brushing, and current electric toothbrushes haven't addressed this potential problem. This leads some parents to have concerns about the safety of toothpaste foam, worrying that frequent swallowing might harm their children's health. Utility Model Content

[0003] The purpose of this invention is to provide an electric toothbrush head and an electric toothbrush to alleviate the technical problem of children swallowing foam in the prior art.

[0004] In a first aspect, the electric toothbrush head provided by this utility model includes: a brush handle, a first end of which is provided with a bristle-embedded surface, and a second end of which is connected to a handle;

[0005] The brush rod is equipped with...

[0006] At least one suction inlet is provided at the first end;

[0007] A suction outlet is provided at the second end;

[0008] At least one suction channel, the suction channel being connected to the suction inlet and the suction outlet.

[0009] Optionally, the flocked surface is provided with bristles.

[0010] Optionally, the electric toothbrush head further includes at least one flexible extension tube, which is disposed on the bristle-embedded surface. The length of the flexible extension tube is shorter than the length of the bristles, and the flexible extension tube is connected to the suction inlet.

[0011] Optionally, the brush handle also has a back side opposite to the bristle-forming surface, and the suction inlet is located on the back side.

[0012] Optionally, the brush handle also has a top wall located between the bristle-planting surface and the back surface, and the suction inlet is located on the top wall.

[0013] Optionally, the brush handle also has a sidewall that connects the bristle-forming surface, the back surface, and the top wall, and the suction inlet is located on the sidewall.

[0014] Optionally, the suction channel includes at least one branch channel and a confluence channel, one end of the branch channel is connected to the suction inlet, the other end of the branch channel is connected to the confluence channel, and the confluence channel is connected to the suction outlet.

[0015] Optionally, the inner wall of the suction outlet is provided with an elastic ring.

[0016] The electric toothbrush head provided by this utility model includes: a brush handle, a first end of which has a bristle-embedded surface, and a second end of which is connected to a handle; the brush handle has at least one suction inlet, one suction outlet, and at least one suction channel, the suction inlet being located at the first end, the suction outlet being located at the second end, and the suction channel connecting the suction inlet and the suction outlet. When using the electric toothbrush head provided by this utility model, the suction inlet is located inside the user's mouth. When there is a lot of toothpaste foam and saliva in the mouth, the liquid in the mouth can enter the suction channel through the suction inlet, reducing the amount of toothpaste foam and saliva in the user's mouth, thereby preventing the user from swallowing toothpaste foam.

[0017] Secondly, the electric toothbrush provided by this utility model includes: a handle and the above-mentioned electric toothbrush head, wherein the electric toothbrush head is fitted and installed on the handle;

[0018] The handle is provided with the suction component, which is connected to the suction outlet in the electric toothbrush head. The suction component includes a suction pump and a suction tube, and the suction tube is connected to the suction channel and the suction pump respectively.

[0019] Optionally, it also includes a storage compartment connected to the suction pump.

[0020] When using the electric toothbrush provided by this utility model, the suction inlet is located inside the user's cavity. When there is a lot of toothpaste foam and saliva in the mouth, the suction component can be used to draw the toothpaste foam and saliva in the mouth into the suction channel, thereby reducing the amount of toothpaste foam and saliva in the user's mouth and preventing the user from swallowing toothpaste foam. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a first embodiment of the electric toothbrush head provided in this utility model.

[0023] Figure 2 This is a second embodiment of the electric toothbrush head provided in this utility model.

[0024] Figure 3 This is a third embodiment of the electric toothbrush head provided in this utility model.

[0025] Figure 4 This is a first embodiment of the electric toothbrush provided in this utility model.

[0026] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0027] Figure 6 This is a second embodiment of the electric toothbrush provided in this utility model.

[0028] Figure 7 This is a third embodiment of the electric toothbrush provided in this utility model.

[0029] icon:

[0030] 110-Brush handle; 111-Fluffed surface; 120-Bristles; 130-Suction channel; 131-Suction inlet; 132-Suction outlet; 133-Elastic ring; 001-First end; 002-Second end;

[0031] 200 - Handle; 210 - Vent hole; 220 - Mounting cavity;

[0032] 300 - Suction assembly; 310 - Suction pump; 320 - Suction pipe; 330 - Connecting rod; 331 - Mounting groove; 332 - Sealing ring; 340 - Liquid outlet pipe; 350 - Air inlet pipe;

[0033] 400 - Storage compartment; 410 - Sealing part; 420 - Rubber stopper;

[0034] 510 - Electric motor; 520 - Hollow shaft motor;

[0035] 610 - First switch; 620 - Second switch; 630 - Control board; 640 - Rechargeable battery. Detailed Implementation

[0036] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0041] like Figures 1 to 3 As shown, the electric toothbrush head provided in this embodiment of the present invention includes: a brush handle 110, a first end 001 of the brush handle 110 having a bristle-embedded surface 111, and a second end 002 of the brush handle 110 being connected to a handle 200; the brush handle 110 has at least one suction inlet 131, a suction outlet 132, and at least one suction channel 130, the suction inlet 131 being located at the first end, the suction outlet 132 being located at the second end, and the suction channel 130 communicating with the suction inlet 131 and the suction outlet 132.

[0042] Specifically, brush stick 110 Figure 1 The upper end shown is the first end 001 of the brush handle 110. One side of the first end 001 is the bristle implantation surface 111. The bristles 120 are fixedly installed on the bristle implantation surface 111. During use, the bristles 120 are used to clean teeth.

[0043] When using the electric toothbrush head provided in this embodiment of the present invention, the suction inlet 131 is located inside the user's mouth. When there is a lot of toothpaste foam and saliva in the mouth, the liquid in the mouth can enter the suction channel 130 through the suction inlet 131, thereby reducing the amount of toothpaste foam and saliva in the user's mouth and preventing the user from swallowing toothpaste foam.

[0044] The suction inlet 131 can be positioned at the first end in several ways:

[0045] As a setting method, such as Figure 1 As shown, the suction inlet 131 is located on the hair-embedded surface 111. Liquid in the oral cavity can enter the suction channel 130 through the suction inlet 131.

[0046] Furthermore, the electric toothbrush head also includes at least one flexible extension tube, which is disposed on the bristle implantation surface 111. The length of the flexible extension tube is shorter than the length of the bristles 120, and the flexible extension tube is connected to the suction inlet 131.

[0047] Specifically, the flexible extension tube is arranged along the length of the bristles 120. One end of the flexible extension tube is fixedly installed in the suction inlet 131 and communicates with the suction inlet 131, while the other end is nearly flush with the bristles 120. When suctioning liquid from the oral cavity, the liquid enters the suction channel 130 along the flexible extension tube, preventing the bristles 120 from blocking the suction inlet 131 and affecting the suction effect.

[0048] As another setting method, such as Figure 2 As shown, the brush handle 110 also has a back side that is opposite to the bristle-embedded surface 111, and the suction inlet 131 is located on the back side. Specifically, the brush handle 110 has a back side that is nearly parallel to the bristle-embedded surface 111, and the suction inlet 131 is located on the back side of the brush handle 110, which facilitates the entry of liquid in the oral cavity into the suction channel 130 through the suction inlet 131.

[0049] As another configuration, the brush handle 110 also has a top wall, which is located between the bristle-embedded surface 111 and the back surface. The suction inlet 131 is located on the top wall, which allows the suction inlet 131 to directly contact the liquid in the mouth, thereby facilitating the entry of the liquid in the mouth into the suction channel 130 through the suction inlet 131.

[0050] As another configuration, the brush handle 110 also has a side wall, which connects the bristle-embedded surface 111, the back and the top wall. The suction port 131 is located on the side wall, which allows the suction port 131 to directly contact the liquid in the mouth, thereby facilitating the liquid in the mouth to enter the suction channel 130 through the suction port 131.

[0051] The quantity of suction inlet 131 can be determined in the following ways:

[0052] As one configuration, the suction channel 130 has a suction inlet 131; the suction inlet 131 can be located on the bristle surface 111, the back surface, or the side wall or top wall between the bristle surface and the back surface. Providing a suction inlet 131 facilitates the processing of the brush handle 110.

[0053] As another configuration, the suction channel 130 includes at least one branch channel and a confluence channel. One end of the branch channel is connected to the suction inlet 131, and the other end of the branch channel is connected to the confluence channel, which is connected to the suction outlet 132.

[0054] Specifically, the number of suction inlets 131 can be set to two, three, or four, etc. Multiple suction inlets 131 can be set on the same surface of the brush rod 110 or on different surfaces. Each suction inlet 131 is connected to the main flow channel through a corresponding branch channel. Setting multiple suction inlets 131 and having multiple suction inlets 131 contact the liquid at different locations in the oral cavity can improve the suction effect.

[0055] like Figures 1 to 3 As shown, the suction outlet 132 is located at the second end 002 of the brush handle 110 away from the bristle-embedded surface 111. When the electric toothbrush head provided in this embodiment of the present invention is installed on the handle 200, it can be connected to the handle 200 through the suction outlet 132, and at the same time, it can be connected to the suction assembly 300 inside the handle 200.

[0056] The inner wall of the suction outlet 132 is provided with an elastic ring 133. Specifically, the elastic ring 133 is made of elastic material and extends in a ring shape along the circumference of the suction channel 130. The elastic ring 133 is used to cooperate with the structure on the handle 200 to improve the sealing of the connection between the brush head and the handle 200.

[0057] Secondly, such as Figures 4 to 6 As shown, the electric toothbrush provided in this embodiment of the present invention includes: a handle 200 and the electric toothbrush head described above; the electric toothbrush head is fitted onto the handle 200, the handle 200 is provided with a suction component, and the suction component 300 is connected to the suction outlet 132 in the electric toothbrush head.

[0058] Optionally, the suction assembly 300 includes a suction pump 310 and a suction pipe 320, with the suction pipe 320 connected to the suction channel 130 and the suction pump 310, respectively.

[0059] Specifically, the handle 200 is rod-shaped, and the electric toothbrush head is detachably connected to one end of the handle 200. This connection can be achieved through snap-fit, threaded connection, or other detachable methods. The first end 001 of the brush handle 110, away from the handle 200, is provided with bristles 120 and a suction inlet 131, which is located on the back of the toothbrush. Furthermore, those skilled in the art can adjust the position of the suction inlet 131 on the toothbrush according to actual needs, which will not be elaborated here. A suction channel 130 extends through the brush head, and the end of the suction channel 130 away from the suction inlet 131 has a suction outlet 132. A suction tube 320 is arranged along the length of the handle 200, with one end connected to the suction outlet 132 and the other end connected to the inlet of a suction pump 310. Under the action of the suction pump 310, a negative pressure can be created at the suction inlet 131 to draw liquid from the oral cavity into the suction channel 130.

[0060] When using the electric toothbrush provided in this embodiment of the present invention, the bristles 120 and the suction inlet 131 of the suction channel 130 are located in the user's cavity. When there is a lot of toothpaste foam and saliva in the mouth, the suction component 300 can be used to draw the toothpaste foam and saliva in the mouth into the suction channel 130, thereby reducing the amount of toothpaste foam and saliva in the user's mouth and preventing the user from swallowing toothpaste foam.

[0061] Optionally, the suction assembly 300 also includes a connecting rod 330 having a communication channel for connecting the handle 200 and the brush handle 110.

[0062] A connecting rod 330 is positioned along the length of the handle 200 and extends from the upper end of the handle 200. A connecting channel passes through the connecting rod 330 along its axial direction. One end of the connecting rod 330 inside the handle 200 communicates with the suction tube 320, while the other end of the connecting rod 330 outside the handle 200 is inserted into the suction channel 130 from the suction outlet 132. The outer diameter of the connecting rod 330 is the same as the diameter of the suction channel 130, thereby abutting the outer peripheral wall of the connecting rod 330 against the inner wall of the suction channel 130, improving the stability of the connection. The connecting rod 330 connects the handle 200 to the electric toothbrush head and also connects the suction channel 130 to the suction tube 320.

[0063] A sealing assembly is provided between the outer peripheral wall of the connecting rod 330 and the inner wall of the suction channel 130. The sealing assembly includes: a mounting groove 331 provided on the outer wall of the connecting rod 330, and a sealing ring 332 embedded in the mounting groove 331. An elastic ring 133 is also provided in the suction channel 130, and the elastic ring 133 abuts against the sealing ring 332 to enhance the sealing performance.

[0064] Specifically, the mounting groove 331 extends circumferentially along the connecting rod 330 in an annular shape. The cross-sectional shape and size of the mounting groove 331 match the cross-sectional shape and size of the sealing ring 332. The sealing ring 332 is fitted onto the connecting rod 330 and secured within the mounting groove 331. An elastic ring 133 is provided on the inner wall of the suction channel 130 at a position corresponding to the sealing ring 332. The elastic ring 133 is embedded in the inner circumferential wall of the suction channel 130. When the connecting rod 330 is inserted into the suction channel 130, the elastic ring 133 abuts against the sealing ring 332. A sealing assembly is provided between the connecting rod 330 and the inner wall of the suction channel 130 to improve the sealing performance between the connecting rod 330 and the electric toothbrush head, improve the stability of the negative pressure at the suction inlet 131, and prevent the suctioned liquid from leaking out between the connecting rod 330 and the inner wall of the suction channel 130.

[0065] It also includes a storage chamber 400, which is connected to a suction pump 310.

[0066] Specifically, the storage chamber 400 is detachably installed on the handle 200 by snap-fit ​​or threaded connection, or it is fixedly connected to the handle 200 by adhesive or integral molding. When the storage chamber 400 is fixedly connected to the handle 200, the storage chamber 400 is provided with a drain hole, and a removable rubber stopper 420 is inserted into the drain hole. During use, the liquid drawn from the mouth can be stored in the storage chamber 400 to prevent the liquid from staining the user's clothes. After use, the storage chamber 400 can be removed from the handle 200, the liquid in the storage chamber 400 can be poured out and the storage chamber 400 can be cleaned, or the rubber stopper 420 at the drain hole can be opened to release the liquid in the storage chamber 400.

[0067] As a connection method between the suction pump 310 and the suction pipe 320, the suction pump 310 and the suction pipe 320 are indirectly connected, and the specific configuration is as follows:

[0068] The outlet end of the suction tube 320 is connected to the storage chamber 400. The sealing part 410 is also provided with a connecting channel, one end of which is connected to the suction pump 310, and the other end is connected to the storage chamber 400. When the suction pump 310 starts, it creates a negative pressure in the storage chamber 400 through the connecting channel, thereby drawing the liquid in the oral cavity into the storage chamber 400. Figure 7As shown, the end of the suction tube 320 away from the suction channel 130 extends into the storage chamber 400. The inlet of the suction pump 310 is connected to an air inlet pipe 350, which also extends into the storage chamber 400. A vent hole 210 is provided on the side wall of the handle 200, and a one-way valve is provided at the vent hole 210. The air outlet of the suction pump 310 is connected to the vent hole 210. The vent hole 210 connects the mounting cavity 220 with the outside of the handle 200, thereby balancing the air pressure when the suction pump 310 is working, so that the suction pump 310 can work normally. During use, the suction pump 310 creates a negative pressure environment in the storage bottle 400, allowing liquid from the mouth to be transported through the suction tube 320 to the storage bottle 400 for storage. This prevents the liquid from soiling the user's clothing. After use, the storage bottle 400 can be detached from the handle 200 to empty the liquid and clean the bottle. Alternatively, the rubber stopper 420 at the drain hole can be opened to release the liquid from the storage chamber 400. The sealing part 410 maintains a tight seal between the storage chamber 400 and the handle 200, ensuring a vacuum environment in the storage chamber 400. A better vacuum environment results in better suction and higher suction efficiency for the suction pump 310. Conversely, poor airtightness increases the load on the suction pump 310, affecting its service life.

[0069] As another way to connect the suction pump 310 and the suction pipe 320, the suction pump 310 and the suction pipe 320 are directly connected, and the specific setting is as follows:

[0070] like Figure 4 and Figure 6 As shown, the liquid outlet of the suction tube 320 is connected to the suction pump 310. The suction pump 310 is provided with a liquid outlet pipe 340; the liquid outlet pipe 340 is connected to the outside of the handle 200; when the suction pump 310 is started, the negative pressure in the suction channel 130 is used to draw the liquid in the oral cavity to the suction pump 310, and the suction pump 310 discharges the liquid through the liquid outlet pipe 340.

[0071] Specifically, the handle 200 has a hollow structure with an internal mounting cavity 220, where both the suction pump 310 and the suction tube 320 are located. The suction pump 310 is mounted on the end of the mounting cavity 220 away from the brush head via a mounting base, with the inlet end of the suction pump 310 facing the end of the mounting cavity 220 closer to the brush head. The suction tube 320 is arranged along the length of the handle 200. Figure 1 The upper end shown is connected to the suction outlet, and the suction tube is 320. Figure 1The lower end shown is connected to the inlet end of the suction pump 310. The outlet tube 340 extends from the end of the handle 200 away from the brush head. The end of the outlet tube 340 inside the handle 200 is connected to the outlet end of the suction pump 310, and the end of the outlet tube 340 outside the handle 200 is connected to the storage chamber 400. During use, the suction pump 310 forces liquid in the mouth through the suction tube 320, the suction pump 310, and the outlet tube 340 into the storage chamber 400, preventing the user from swallowing foam in their mouth and avoiding liquid staining the user's clothing.

[0072] It also includes a drive assembly, which is connected to the brush head drive.

[0073] Specifically, the drive assembly is installed in the mounting cavity 220 and is connected to the brush head via the connecting rod 330. When using the electric toothbrush provided in this embodiment, the drive assembly drives the electric toothbrush head to move, making the toothbrush provided in this embodiment more convenient to use.

[0074] As one implementation of the drive assembly, the drive assembly includes a motor 510, which is connected to the electric toothbrush head via an eccentric wheel assembly.

[0075] like Figure 4 As shown, the motor 510 is located on one side of the suction tube 320. The output shaft of the motor 510 is connected to the connecting rod 330 via an eccentric wheel assembly. The end of the connecting rod 330 located outside the handle 200 is inserted into the suction channel 130. When the electric toothbrush is working, the output shaft of the motor 510 drives the eccentric wheel assembly to move, which in turn drives the connecting rod 330 to move, which in turn drives the brush head to move, thus achieving automatic brushing.

[0076] As another implementation of the drive assembly, the drive assembly includes a hollow shaft motor 520, which is connected to the brush head via an eccentric wheel assembly, and the suction tube 320 passes through the hollow shaft motor 520.

[0077] like Figure 6 As shown, the hollow shaft motor 520 and the connecting rod 330 are arranged along the axial direction of the handle 200. The suction tube 320 passes through the output shaft of the hollow shaft motor 520, and the output shaft of the hollow shaft motor 520 is connected to the connecting rod 330 via an eccentric wheel assembly. When the electric toothbrush is working, the output shaft of the motor 520 drives the eccentric wheel assembly to move, the eccentric wheel assembly drives the connecting rod 330 to move, and the connecting rod 330 drives the brush head to move, thereby realizing automatic brushing. The suction tube 320 passes through the hollow shaft motor 520, causing a partial overlap between the two structures, which reduces the space occupied and thus helps to reduce the size of the handle 200.

[0078] The toothbrush also includes a first switch 610 for independently controlling the drive assembly and a second switch 620 for controlling the suction pump 310; both the drive assembly and the suction pump 310 are electrically connected to a rechargeable battery 640 within the handle 200 via a control board 630.

[0079] Specifically, both the first switch 610 and the second switch 620 are button-shaped, or touch areas on a panel, and are located on the outer peripheral wall of the handle 200. A control board 630 and a rechargeable battery 640 are also housed within the mounting cavity 220 of the handle 200. The control board 630 is positioned opposite to the first switch 610 and the second switch 620, and is signal-connected to both switches 610 and 620 respectively. The suction pump 310 and the motor 510 are also signal-connected to the control board 630. The rechargeable battery 640 is located on the side of the control board 630 opposite to the first switch 610 and is connected to the control board 630, providing power to the control board 630, the suction pump 310, and the motor 510.

[0080] When brushing teeth using the toothbrush provided in this embodiment of the present invention, first press the first switch 610 to turn on the motor 510 via the control board 630. When there is a lot of toothpaste foam and saliva in the user's mouth, press the second switch 620 to turn on the suction pump 310 via the control board 630. The liquid in the mouth is sucked into the storage chamber 400 along the suction channel 130, connecting rod 330, suction tube 320 and liquid outlet tube 340. After use, the storage chamber 400 can be removed from the handle 200 for cleaning.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electric toothbrush head, characterized in that, include: The brush handle (110) has a bristle-forming surface (111) at its first end (001) and a second end (002) connected to the handle (200). The brush rod (110) is provided with, At least one suction port (131) is provided at the first end; A suction outlet (132) is provided at the second end; At least one suction channel (130) is connected to the suction inlet (131) and the suction outlet (132).

2. The electric toothbrush head according to claim 1, characterized in that, The flocked surface (111) is provided with bristles (120).

3. The electric toothbrush head according to claim 2, characterized in that, The electric toothbrush head also includes at least one flexible extension tube, which is disposed on the bristle surface (111). The length of the flexible extension tube is shorter than the length of the bristles (120), and the flexible extension tube is connected to the suction port (131).

4. The electric toothbrush head according to claim 1, characterized in that, The brush handle (110) also has a back side that is opposite to the bristle-forming surface (111), and the suction inlet (131) is located on the back side.

5. The electric toothbrush head according to claim 4, characterized in that, The brush handle (110) also has a top wall located between the bristle-planting surface (111) and the back surface, and the suction inlet (131) is located on the top wall.

6. The electric toothbrush head according to claim 5, characterized in that, The brush handle (110) also has a side wall that connects the bristle-forming surface (111), the back surface, and the top wall, and the suction inlet (131) is located on the side wall.

7. The electric toothbrush head according to any one of claims 1-6, characterized in that, The suction channel (130) includes at least one branch channel and a confluence channel. One end of the branch channel is connected to the suction inlet (131), and the other end of the branch channel is connected to the confluence channel. The confluence channel is connected to the suction outlet (132).

8. The electric toothbrush head according to claim 1, characterized in that, The inner wall of the suction outlet (132) is provided with an elastic ring (133).

9. An electric toothbrush, characterized in that, include: The handle (200) and the electric toothbrush head according to any one of claims 1-8, wherein the electric toothbrush head is fitted and mounted on the handle (200). The handle (200) is provided with a suction assembly (300), which is connected to the suction outlet (132) in the electric toothbrush head. The suction assembly (300) includes a suction pump (310) and a suction tube (320), which is connected to the suction channel (130) and the suction pump (310) respectively.

10. The electric toothbrush according to claim 9, characterized in that, It also includes a storage compartment (400) connected to the suction pump (310).

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