Electric toothbrush

Abstract

The utility model relates to an electric toothbrush, including handle, toothbrush head, pump body, motor, connecting hose and cover tight spare, the pump body includes the first intercommunication interface for output airflow or liquid flow, the motor includes motor shaft, the motor shaft is hollow structure and includes the second intercommunication interface, connecting hose includes first connecting end, second connecting end and the middle part connected between first connecting end and second connecting end, the first connecting end of connecting hose is set in the outside of first intercommunication interface, and the second connecting end is set in the outside of second intercommunication interface, and the middle part of connecting hose surrounds the gap between first intercommunication interface and second intercommunication interface, the cover tight spare is set in first connecting end and second connecting end of connecting hose, and at least partial set in the middle part of connecting hose to prevent the connecting hose from falling off or bulging.

Description

Technical Field

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

[0002] Existing electric toothbrushes (such as bubble toothbrushes) contain an air pump (or liquid pump) and a motor. The air pump (or liquid pump) pressurizes air or liquid and transmits it to the brush head through a hollow motor shaft. This mixes oral fluid with the high-pressure airflow, generating micron-sized bubbles. These bubbles release energy as they expand and burst, using cavitation to remove plaque. Because the motor needs to oscillate, there is a gap at the connection between the motor and the air pump to prevent interference with the motor's oscillation. The motor shaft and the air pump's outlet are connected by a flexible rubber tube to achieve a sealed connection. However, if the micropores on the toothbrush head or the motor shaft become blocked, the air pressure inside the toothbrush will continue to increase. The flexible rubber tube in the gap between the motor and the air pump is prone to expansion and bursting, or the interface between the flexible rubber tube and the motor or air pump may detach due to expansion, leading to water or air leakage inside the electric toothbrush. Utility Model Content

[0003] In view of this, the present invention provides an electric toothbrush that can prevent the internal flexible tube from swelling, bulging, or falling off.

[0004] To achieve one, some, or all of the above objectives, or other objectives, this utility model proposes:

[0005] An electric toothbrush includes a handle and a toothbrush head connected to the handle. The electric toothbrush further includes: a pump body with a first communication port for outputting airflow or liquid flow; a motor connected between the pump body and the toothbrush head, the motor including a motor shaft, the motor shaft being a hollow structure and including a second communication port; a connecting hose including a first connecting end, a second connecting end, and a middle portion connecting the first connecting end and the second connecting end, the first connecting end of the connecting hose being sleeved outside the first communication port, the second connecting end being sleeved outside the second communication port, and the middle portion of the connecting hose covering the gap between the first and second communication ports; and a fastening member sleeved on the first and second connecting ends of the connecting hose, and at least partially sleeved on the middle portion of the connecting hose, to prevent the connecting hose from detaching or bulging.

[0006] Furthermore, the clamping component is a spring, which includes a first end, a second end, and a transition portion connecting the two. The first end of the spring is sleeved on the first connecting end of the connecting hose, the second end of the spring is sleeved on the second connecting end of the connecting hose, and the transition portion of the spring is sleeved on the middle part of the connecting hose.

[0007] Furthermore, the outer diameter of the first communication port of the pump body is larger than the outer diameter of the second communication port of the motor shaft.

[0008] Furthermore, the clamping component is a spring, which includes a first end and a second end. The first end of the spring is sleeved on the first connecting end of the connecting hose, and the second end of the spring is sleeved on the second connecting end of the connecting hose. The diameter of the first end of the spring is larger than the diameter of the second end.

[0009] Furthermore, the spring also includes an inclined transition portion connecting the first end and the second end, the transition portion of the spring being sleeved on the middle of the connecting hose; the diameter of the transition portion gradually decreases along the direction from the first end to the second end of the spring.

[0010] Furthermore, the inner diameter of the first end of the spring is slightly smaller than the outer diameter of the first connecting end of the connecting hose sleeved outside the first communication interface, and the inner diameter of the second end of the spring is slightly smaller than the outer diameter of the second connecting end of the connecting hose sleeved outside the second communication interface.

[0011] Furthermore, the length of the spring is approximately equal to the length of the connecting hose.

[0012] Furthermore, the fastening component includes a first rigid sleeve and a second rigid sleeve, wherein the first rigid sleeve is fitted onto the first connecting end of the connecting hose, and the second rigid sleeve is fitted onto the second connecting end of the connecting hose.

[0013] Furthermore, the first rigid sleeve and the second rigid sleeve are spaced apart, with the distance between them being between 0.2 and 1.5 mm.

[0014] Furthermore, the toothbrush head includes a micro-orifice nozzle, the handle includes a housing, the pump body and the motor are installed in the housing, and the motor shaft is connected between the first communication port of the pump body and the toothbrush head for transmitting the airflow or liquid flow output by the pump body to the micro-orifice nozzle of the toothbrush head.

[0015] This embodiment of the utility model utilizes a connecting hose with a first connecting interface for the pump body and a second connecting interface for the motor shaft respectively fitted at both ends. The middle part of the connecting hose covers the gap between the two connecting interfaces. Then, a tightening piece is fitted onto both ends of the connecting hose, and at least partially fitted onto the middle part of the connecting hose. This can prevent the connecting hose from falling off from the connecting interfaces at both ends, and can also prevent the hose in the gap area from expanding and bulging. This improves the reliability of the sealing connection between the interfaces and avoids gas or liquid leakage inside the electric toothbrush. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an electric toothbrush provided in an embodiment of the present utility model;

[0018] Figure 2 An exploded view of the electric toothbrush provided in an embodiment of this utility model;

[0019] Figure 3 A cross-sectional structural diagram of an electric toothbrush provided in an embodiment of this utility model;

[0020] Figure 4 yes Figure 3 Enlarged view of the central area;

[0021] Figure 5 This is a schematic diagram showing the connection state of the pump body and motor inside an electric toothbrush in one embodiment of the present invention;

[0022] Figure 6 for Figure 5 A schematic diagram of the structure of the spring;

[0023] Figure 7 This is a cross-sectional structural diagram of the pump body and motor inside the electric toothbrush in another embodiment of the present invention.

[0024] in:

[0025] 10-Electric toothbrush; 100-Toothbrush head; 110-Base; 111-Base; 112-Micro-orifice nozzle; 101-First flow channel; 200-Handle; 202-Air inlet pipe; 210-Housing shell; 300-Pump body; 310-First connecting interface; 400-Motor; 410-Motor shaft; 401-Second flow channel; 411-Second connecting interface; 412-Third connecting interface; 500-Connecting hose; 500a-First connecting end; 500b-Second connecting end; 500c-Middle part; 600-Spring; 600a-First end; 600b-Second end; 600c-Transition part; 600a'-First rigid sleeve; 600b'-Second rigid sleeve. Detailed Implementation

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0029] See appendix Figures 1 to 3 This utility model embodiment provides an electric toothbrush 10, including: a toothbrush head 100, a handle 200, a pump body 300, and a motor 400, etc. The pump body 300 can be an air pump or a liquid pump, used to output airflow, liquid flow, or a gas-liquid mixture to the toothbrush head 100 to improve the cleaning effect and user experience of the toothbrush.

[0030] The toothbrush head 100 is detachably connected to the handle 200. The toothbrush head 100 includes a base 110, on which bristles 111 and micro-orifice nozzles 112 are provided. The micro-orifice nozzles 112 and bristles 111 can be located on the same side of the base 110, and one or more micro-orifice nozzles 112 may be included. The toothbrush head 100 may have a hollow structure with a first flow channel 101 inside, which communicates with the micro-orifice nozzles 112. The micro-orifice nozzles 112 can be used to spray airflow or water vapor mixture. The sprayed airflow can generate dense microbubbles with toothpaste and water, and the energy released instantaneously by the bursting of the bubbles (cavitation effect) cleans the teeth.

[0031] The handle 200 includes a housing 210, a pump body 300 and a motor 400 which can be installed in the housing 210. The motor 400 is connected between the pump body 300 and the toothbrush head 100. The motor 400 can be used to drive the toothbrush head 100 to swing or rotate to generate friction to clean teeth.

[0032] Specifically, the motor 400 is connected to a motor shaft 410, which can drive the toothbrush head 100 to swing or rotate. The motor shaft 410 can be configured as a hollow structure to form a second flow channel 401 in the motor shaft 410. The second flow channel 401 is connected between the airflow or liquid outlet of the pump body 300 and the first flow channel 101 of the toothbrush head 100, so that the air (liquid) flow output by the pump body 300 can flow through the continuous flow channel to the micro-orifice nozzle 112 of the toothbrush head 100.

[0033] The pump body 300 has a first communication interface 310, which is the outlet of the pump body 300 for outputting airflow or liquid flow. The motor shaft 410 has a second communication interface 411 and a third communication interface 412 at opposite ends. The second communication interface 411 of the motor shaft 410 is used to connect with the first communication interface 310 of the pump body 300, and the third communication interface 412 of the motor shaft 410 is connected with the first flow channel 101 inside the toothbrush head 100, so that the air (liquid) flow output by the pump body 300 can flow through the second flow channel 401 to the first flow channel 101, and then be ejected from the micro-orifice nozzle 112 of the toothbrush head 100.

[0034] The pump body 300 can be connected to the air inlet pipe 202 so that air enters the pump body 300 through the air inlet pipe 302 and is then output from the first communication port 310 of the pump body 300. The airflow passes through the second flow channel 401 and the first flow channel 101 and is then ejected from the micro-hole nozzle 112. In this way, the electric toothbrush 10 can eject airflow through the micro-hole nozzle 112. The ejected airflow, toothpaste and water, generates dense microbubbles. The impact generated by the instantaneous collapse and bursting of the microbubbles cleans the gaps between teeth, improving the teeth cleaning effect and user experience.

[0035] See Figures 2 to 7In order to achieve a better sealing connection between the pump body 300 and the motor shaft 410 (the gas or liquid between the two will not leak), the electric toothbrush provided in this embodiment of the utility model also includes a connecting hose 500 sleeved on the first connecting interface 310 of the pump body 300 and the second connecting interface 411 of the motor shaft 410. The connecting hose 500 may be made of silicone or similar plastic material and has a certain radial flexibility. The connecting hose 500 includes a first connecting end 500a, a second connecting end 500b, and a middle portion 500c. The first connecting end 500a is tightly fitted onto the outside of the first connecting interface 310 of the pump body 300, and the second connecting end 500b is tightly fitted onto the outside of the second connecting interface 411 of the motor shaft 410. In order to avoid affecting the swing or rotation of the motor shaft 410, there is a gap between the first connecting interface 310 of the pump body 300 and the second connecting interface 411 of the motor shaft 410. The middle portion 500c of the connecting hose 500 is fitted onto the outside of the gap area, thereby achieving a sealed connection between the first connecting interface 310 and the second connecting interface 411. At the same time, it can also prevent the connection between the first connecting interface 310 and the motor shaft 410 from falling off due to the swing or vibration of the motor shaft 410 when the motor 400 is working.

[0036] To further improve the reliability of the sealed connection between the pump body 300 and the motor 400, and to prevent bulging of the portion of the connecting hose 500 surrounding the gap area, the electric toothbrush also includes a clamping member sleeved on the outside of the connecting hose 500. In one embodiment, the clamping member can be a spring 600, with both ends of the spring 600 fixing both ends of the connecting hose 500, and the middle part of the spring 600 surrounding the middle part of the connecting hose 500, thereby preventing bulging of the connecting hose 500 in the gap area. Furthermore, the spring 600 sleeved on the outside of the connecting hose 500 does not affect the rotation of the motor 400 relative to the pump body 300.

[0037] Please see Figure 4 and Figure 6The spring 600 includes a first end 600a, a second end 600b, and a transition portion 600c connecting the first end 600a and the second end 600b. The diameter of the first end 600a is larger than the diameter of the second end 600b. The transition portion 600c is inclined and its diameter gradually decreases along the direction from the first end 600a to the second end 600b. The maximum diameter of the transition portion 600c is not greater than the diameter of the first end 600a, and the minimum diameter of the transition portion 600c is not less than the diameter of the second end 600b. The first end 600a of the spring 600 is tightly fitted on the outside of the first connecting end 500a of the connecting hose 500 to prevent the connecting hose 500 from detaching from the first communication port 310 of the pump body 300; the second end 600b of the spring 600 is tightly fitted on the outside of the second connecting end 500b of the connecting hose 500 to prevent the connecting hose 500 from detaching from the end where the second communication port 411 of the motor shaft 410 is located; the transition part 600c is tightly fitted on the middle part 500c of the connecting hose 500 to prevent the hose at the connection between the pump body 300 and the motor 400 from expanding and bulging.

[0038] In this embodiment of the invention, since the diameter of the first connecting interface 310 of the pump body 300 is different from the diameter of the motor shaft 410, with the first connecting interface 310 of the pump body 300 having a larger diameter and the motor shaft 410 having a smaller diameter, both are standard parts, saving costs. Correspondingly, the first end 600a of the spring 600 has a larger diameter and the second end 600b has a smaller diameter, allowing it to be tightly fitted onto the outside of the first connecting interface 310 of the pump body 300 and the second connecting interface 411 of the motor shaft 410, respectively, preventing the two ends of the connecting hose 500 from falling off the pump body 300 or the motor shaft 410; the transition portion 600c in the middle of the spring 600 is tightly fitted onto the middle of the connecting hose 500, preventing bulging or expansion of the hose in the gap area between the first connecting interface 310 of the pump body 300 and the motor shaft 410. The length of spring 600 can be similar to or slightly shorter than the length of connecting hose 500 to increase the wrapping area along the length of connecting hose 500 and improve the anti-detachment effect. Spring 600 can be made of a tightly wound metal material with a certain rigidity, which can further increase the wrapping contact area between spring 600 and connecting hose 500, and spring 600 is not easily deformed in the radial direction, ensuring a consistently stable contact and fastening effect between spring 600 and connecting hose 500.

[0039] Because the diameter of the first connecting port 310 of the pump body 300 is larger than the diameter of the motor shaft 410, the diameter of the inclined transition portion 600c of the spring 600 is larger at the end near the pump body 300 and smaller at the end near the motor shaft 410. This results in a more natural transition between the two ends of the spring 600 with different diameters, better size matching, and effectively prevents the hose from expanding and bulging in the gap area. The diameter of the first connecting end 500a of the connecting hose 500 can also be set slightly larger than the diameter of the second connecting end 500b. The middle portion 500c of the connecting hose 500 can also have a certain slope or inclination, with a larger diameter at the end connecting to the first connecting end 500a and a smaller diameter at the end connecting to the second connecting end 500b.

[0040] Furthermore, the inner diameter of the first end 600a of the spring 600 can be slightly smaller than the outer diameter of the first connecting end 310 of the connecting hose 500 sleeved outside the first communication interface 310, and the inner diameter of the second end 600b of the spring 600 can be slightly smaller than the outer diameter of the second connecting end 500b of the connecting hose 500 sleeved outside the second communication interface 411. Thus, the first end 600a of the spring 600 can be press-fitted with the first connecting end 500a of the connecting hose 500, and the second end 600b of the spring 600 can be press-fitted with the second connecting end 500b of the connecting hose 500, thereby securely connecting both ends of the connecting hose 500 to the first communication interface 310 of the pump body 300 and the second communication interface 411 of the motor shaft 410.

[0041] Please see Figure 7In another embodiment of this utility model, the tightening component may further include a first rigid sleeve 600a' and a second rigid sleeve 600b' fitted around the outer sides of both ends of the connecting hose 500. Since the diameter of the first connecting port 310 of the pump body 300 is larger than the diameter of the motor shaft 410, correspondingly, the diameter of the first rigid sleeve 600a' is larger than the diameter of the second rigid sleeve 600b'. The first rigid sleeve 600a' is fitted around the outer side of the first connecting end 500a of the connecting hose 500 to prevent the connecting hose 500 from detaching from the first connecting port 310 of the pump body 300. The second rigid sleeve 600b' is fitted around the outer side of the second connecting end 500a of the connecting hose 500 to prevent the connecting hose 500 from detaching from the first connecting port 310 of the pump body 300. The second connecting interface 411 of the motor shaft 410 is disconnected; the first rigid sleeve 600a' and the second rigid sleeve 600b' are spaced apart to avoid affecting the rotation or oscillation of the motor shaft 410 relative to the pump body 300. The distance between the two is between 0.2mm and 1.5mm. If the distance is too small, the first rigid sleeve 600a' and the second rigid sleeve 600b' may still come into contact and rub when the motor shaft 410 rotates. If the distance is too large, it will not prevent the bulging of the connecting hose 500 in the gap area. If the distance between the two is set within a reasonable range, it can ensure that the two rigid sleeves will not affect the rotation of the motor shaft 410 and the connecting hose 500 will not fall off or bulge.

[0042] In this embodiment of the electric toothbrush, one end of a connecting hose 500 is fitted onto the gas or liquid outlet (first communication port 310) of the pump body 300, and the other end is fitted onto one end of the motor shaft 410 (second communication port 411). To avoid affecting the swinging or rotation of the motor shaft 410, there is a certain gap between the gas or liquid outlet of the pump body 300 and the end of the motor shaft 410. The middle part of the connecting hose 500 surrounds and seals this gap area, so that there will be no leakage in the gas or liquid passage between the pump body 300 and the motor shaft 410; if the toothbrush... If the micro-orifice nozzle 112 on the brush head 100 or the motor shaft 410 is blocked, the pressure in the air or liquid path will continue to increase, which can easily cause the hose in the gap area to swell and even rupture and fall off. In this embodiment, the sleeve is tightly fitted to the outside of the connecting hose 500. The connecting hose 500 is connected to both ends of the pump body 300 and the motor shaft 410 respectively. The sleeve fits in, and the middle part of the gap area of ​​the connecting hose 500 is completely or partially fitted or wrapped, thereby preventing the hose in the gap area from swelling and bulging. The tightening element can be a spring 600, which can completely enclose the connecting hose 500 in the axial direction, preventing both ends from falling off and preventing the connecting hose 500 from expanding and bulging in the middle 500c of the gap between the two interfaces. The tightening element can also be two rigid sleeves, respectively fitted onto the first connecting end 500a and the second connecting end 500b of the connecting hose 500. When the distance between the two rigid sleeves is less than 0.1 mm, friction will occur between the two rigid sleeves, affecting the rotation of the motor shaft 410 and possibly damaging the connecting hose 500. When the distance between the two rigid sleeves is greater than 1.5 mm, the portion of the connecting hose 500 covering the gap area is still prone to expansion and bulging. Therefore, setting the distance between the two rigid sleeves between 0.2 mm and 1.5 mm will prevent friction between the two rigid sleeves and will still partially wrap around or restrict the portion of the connecting hose 500 in the gap area that is prone to expansion and bulging, thus preventing the connecting hose from expanding and bulging. The fastening component in this embodiment can also be other types of wrapping components, as long as it can strengthen the sealing connection between the interface between the connecting soft 500 and the pump body 300 and the motor shaft 410, and prevent the part of the middle blocking gap area of ​​the connecting soft 500 from expanding and bulging.

[0043] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An electric toothbrush, comprising a handle (200) and a brush head (100) connected to the handle (200), characterized in that, The electric toothbrush also includes: The pump body (300) includes a first communication port (310) for outputting airflow or liquid flow; A motor (400) is connected between the pump body (300) and the toothbrush head (100). The motor (400) includes a motor shaft (410), which is a hollow structure and includes a second communication interface (411). A connecting hose (500) includes a first connecting end (500a), a second connecting end (500b), and a middle portion (500c) connecting the first connecting end (500a) and the second connecting end (500b). The first connecting end (500a) of the connecting hose (500) is sleeved on the outside of the first connecting interface (310), and the second connecting end (500b) is sleeved on the outside of the second connecting interface (411). The middle portion (500c) of the connecting hose (500) covers the gap between the first connecting interface (310) and the second connecting interface (411). A fastening element is fitted onto the first connecting end (500a) and the second connecting end (500b) of the connecting hose (500), and is at least partially fitted onto the middle part of the connecting hose (500).

2. The electric toothbrush as described in claim 1, characterized in that, The fastening component is a spring (600), which includes a first end (600a), a second end (600b), and a transition portion (600c) connecting the two. The first end (600a) of the spring (600) is sleeved on the first connecting end (500a) of the connecting hose (500), the second end (600b) of the spring (600) is sleeved on the second connecting end (500b) of the connecting hose (500), and the transition portion (600c) of the spring (600) is sleeved on the middle part of the connecting hose (500).

3. The electric toothbrush as described in claim 1, characterized in that, The outer diameter of the first communication port (310) of the pump body (300) is larger than the outer diameter of the second communication port (411) of the motor shaft (410).

4. The electric toothbrush as described in claim 3, characterized in that, The fastening component is a spring (600), which includes a first end (600a) and a second end (600b). The first end (600a) of the spring (600) is sleeved on the first connecting end (500a) of the connecting hose (500), and the second end (600a) of the spring (600) is sleeved on the second connecting end (500b) of the connecting hose (500). The diameter of the first end (600a) of the spring (600) is larger than the diameter of the second end (600b).

5. The electric toothbrush as described in claim 4, characterized in that, The spring (600) further includes an inclined transition portion (600c) connected between the first end (600a) and the second end (600b), the transition portion (600c) of the spring (600) being sleeved on the middle of the connecting hose (500); the diameter of the transition portion (600c) gradually decreases along the direction from the first end (600a) to the second end (600b) of the spring (600).

6. The electric toothbrush as described in claim 2 or 4, characterized in that, The inner diameter of the first end (600a) of the spring (600) is slightly smaller than the outer diameter of the first connecting end (310) of the connecting hose (500) sleeved on the outside of the first communication interface (310), and the inner diameter of the second end (600b) of the spring (600) is slightly smaller than the outer diameter of the second connecting end (500b) of the connecting hose (500) sleeved on the outside of the second communication interface (411).

7. The electric toothbrush as described in claim 2 or 4, characterized in that, The length of the spring (600) is approximately the same as the length of the connecting hose (500).

8. The electric toothbrush as described in claim 1, characterized in that, The fastening component includes a first rigid sleeve (600a') and a second rigid sleeve (600b'). The first rigid sleeve (600a') is fitted onto the first connecting end (500a) of the connecting hose (500), and the second rigid sleeve (600b') is fitted onto the second connecting end (500b) of the connecting hose (500).

9. The electric toothbrush as described in claim 8, characterized in that, The first rigid sleeve and the second rigid sleeve are spaced apart, with a distance between them between 0.2 and 1.5 mm.

10. The electric toothbrush as described in any one of claims 1-5 and 8-9, characterized in that, The toothbrush head (100) includes a micro-orifice nozzle (112), the handle (200) includes a housing (210), the pump body (300) and the motor (400) are installed in the housing (210), and the motor shaft (410) is connected between the first communication interface (310) of the pump body (300) and the toothbrush head (100) for transmitting the airflow or liquid flow output by the pump body (300) to the micro-orifice nozzle (112) of the toothbrush head (100).

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