Two-in-one oral irrigator

Abstract

The utility model provides a two-in-one oral irrigator which comprises a main machine body and a first motor, the first motor is provided with a hollow shaft, the two-in-one oral irrigator is characterized in that the two-in-one oral irrigator further comprises a replacement head assembly, the replacement head assembly is detachably connected to one end of the hollow shaft, the other end of the hollow shaft is communicated with a water inlet located in the main machine body, and the replacement head assembly is detachably connected to the other end of the hollow shaft. The replacement head assembly comprises a toothbrush head and a tooth washing head. The two-in-one oral irrigator is provided with various replacement heads including a toothbrush head and an oral irrigating head, a traditional electric toothbrush head can be fixed, a nozzle of the oral irrigator can rotate by 360 degrees at will, the replacement heads are provided with the oral irrigating heads, powerful cleaning and rapid oral irrigating are achieved, a sound wave motor is additionally arranged in an oral irrigating mode to assist in swinging of the nozzle of the oral irrigator, and the operation is convenient. In addition, the replacement head adopts a plug-and-play design, and the replacement head can be plugged without pressing a buckle or a push button, so that the installation and the use are more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of oral care, and specifically relates to a two-in-one oral irrigator. Background Art

[0002] At present, oral care products on the market include toothbrushes, water flossers, etc. Toothbrushes are oral care products used to remove food residues from the surface of teeth, including manual toothbrushes or electric toothbrushes. Water flossers usually include a main body and a water outlet nozzle, which are usually fixedly connected or detachably connected, and use pulsed water flow to remove dental plaque and food residues between teeth and gums.

[0003] However, this oral cleaning method requires the use of an oral irrigator and an electric toothbrush, which increases the number of cleaning devices and accessories. Such multiple cleaning devices and corresponding multiple accessories are inconvenient to use and store, and are also inconvenient to disassemble and install.

[0004] In view of this, it is particularly important to design and manufacture a two-in-one water flosser that can overcome the above problems. Utility Model Content

[0005] In view of the technical problems in the prior art of using a water flosser and an electric toothbrush together, such as having too many accessories that are inconvenient to use and store, and the accessories that are inconvenient to disassemble and install, the utility model proposes a two-in-one water flosser.

[0006] The utility model proposes a two-in-one oral irrigator, including a main body and a first motor, wherein the first motor is provided with a hollow shaft, and is characterized in that it also includes a replacement head assembly, wherein the replacement head assembly is detachably connected to one end of the hollow shaft, and the other end of the hollow shaft is connected to a water inlet located in the main body, and the replacement head assembly includes a toothbrush head and an oral irrigator head. The two-in-one oral irrigator is provided with a variety of replacement heads, including a toothbrush head and an oral irrigator head, which can not only realize the fixation of a traditional electric toothbrush head, but also realize the 360° arbitrary rotation of the oral irrigator nozzle, wherein the replacement head is equipped with an oral irrigator head to realize powerful cleaning and rapid oral irrigating, and an ultrasonic motor is added in the oral irrigator mode to assist in swinging the oral irrigator nozzle to realize swinging water flow oral irrigating, and the replacement head adopts a plug-and-play design, which can be plugged in and out without pressing a buckle or a push button, making installation and use more convenient.

[0007] Preferably, a limiter is provided inside the handle of the toothbrush head to limit the relative rotation with the hollow shaft, the replacement head assembly further includes a replacement head buckle, the toothbrushing head includes a microbubble nozzle and a wide-angle spray nozzle, the replacement head buckle is provided inside the handle of the toothbrush head, the microbubble nozzle or the wide-angle spray nozzle, and is engaged with the hollow shaft through the replacement head buckle. The limiter provided inside the handle of the toothbrush head can limit the rotation of the toothbrush head in the toothbrushing mode, and the replacement head buckle is used to achieve the engagement with the hollow shaft of the first motor, so as to facilitate the disassembly and installation of the two-in-one toothbrushing device as a whole.

[0008] Further preferably, the replacement head assembly further includes a sealing ring, which is disposed inside the handle of the toothbrush head, microbubble nozzle or wide-angle spray nozzle, and the sealing ring abuts against the replacement head buckle and the handle of the toothbrush head, microbubble nozzle or wide-angle spray nozzle. The sealing ring further ensures the stability of the connection between the replacement head assembly and the hollow shaft of the first motor, ensuring the safety of the two-in-one water flosser.

[0009] Preferably, it also includes a water pump assembly disposed inside the main body, the water outlet of the water pump assembly is connected to the hollow shaft, the water inlet of the water pump assembly is connected to an external water source, the water pump assembly includes a piston, a gear and a second motor, the gear is driven by the output shaft of the second motor to rotate, and drives the piston to reciprocate. The whole machine of the two-in-one water flosser adopts a water tank-free design, and water can be directly pumped from an external container, which is convenient to carry and can absorb water from a large-capacity external container, further facilitating use.

[0010] It is further preferred that a water pipe assembly is included, the water pipe assembly includes an internal water suction pipe assembly and an external water suction pipe assembly, the water pump assembly is connected to an external water source through the internal water suction pipe assembly, the external water suction pipe assembly is detachably connected to the side wall of the main body, and is connected to the internal water suction pipe assembly, the external water suction pipe assembly includes an external water suction pipe, a gravity ring and a filter, the filter and the gravity ring are sleeved on one end of the external water suction pipe away from the main body. The external water suction pipe assembly is used to directly pump water from an external container, which enables convenient carrying and large-capacity external container water absorption. The design of the gravity ring and the filter makes it convenient to directly pump water from the external container and filter it, which is further convenient to use.

[0011] Preferably, the external water suction pipe assembly further comprises an external joint anti-dropout assembly, which is arranged on one end of the external water suction pipe away from the filter tip and the gravity ring, and connects the external water suction pipe with the internal water suction pipe assembly through the external joint anti-dropout assembly. The external water suction pipe of the two-in-one water flosser adopts a quick-insert anti-dropout design structure, which further ensures convenience of use while ensuring safety.

[0012] Preferably, the external connector anti-dropout assembly includes a connector buckle, an external tube connector, an external tube anti-dropout connector, a clamping spring and an end cover, the connector buckle is arranged on the outer side wall of the main body, the external tube anti-dropout connector is provided with an anti-dropout connector flange that is mutually engaged with the connector buckle, the clamping spring is sleeved on the external tube connector and abuts against the inside of the external tube anti-dropout connector through the end cover. The external water suction tube of the two-in-one water flosser adopts another quick-insert anti-dropout design structure to further ensure convenience of use while ensuring safety.

[0013] Further preferably, a boss is provided on the anti-detachment joint flange, and a groove which is engaged with the boss is provided on the joint buckle.

[0014] Preferably, the external joint anti-detachment assembly includes an external pipe joint and a joint buckle, the joint buckle is arranged on the outer side wall of the main body, the external pipe joint is arranged at one end of the external water suction pipe, and the external pipe joint is provided with an external pipe flange which is clipped and cooperated with the joint buckle.

[0015] Further preferably, a water inlet adapter seal is provided at the connection between the external joint anti-detachment assembly and the main body, the water inlet adapter seal is protruding from the outer side wall of the main body, a boss is provided on the external pipe flange, and a groove that is snap-fitted with the boss is provided on the joint buckle.

[0016] Compared with the prior art, the beneficial results of the utility model are:

[0017] (1) The two-in-one water flosser is equipped with a variety of replacement heads, including a toothbrush head, a microbubble nozzle or a wide-angle spray nozzle. It can not only fix the traditional electric toothbrush head, but also rotate the water flosser nozzle 360°. The replacement head is equipped with a microbubble nozzle and a wide-angle spray nozzle to achieve powerful cleaning and fast water flossing. In the water flossing mode, a sonic motor is added to assist in swinging the water flosser nozzle to achieve swinging water flow water flossing. In addition, the replacement head adopts a plug-and-play design and can be plugged in and out without pressing a buckle or pushing a button, making installation and use more convenient.

[0018] (2) The two-in-one water flosser adopts a water tank-less design, which allows water to be directly drawn from an external container, making it easy to carry and allowing a large-capacity external container to absorb water, further facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and are used together with the description to explain the principles of the utility model. It will be easy to recognize many expected advantages of other embodiments and embodiments because they become better understood by reference to the following detailed description. The elements of the accompanying drawings are not necessarily in proportion to each other. The same reference numerals refer to corresponding similar parts.

[0020] Figure 1 The overall structure diagram of the two-in-one oral irrigator according to the embodiment of the utility model is shown;

[0021] Figure 2 A cross-sectional view of a two-in-one oral irrigator according to an embodiment of the utility model is shown;

[0022] Figure 3 A schematic diagram showing the structure of a replacement head assembly and a water pump assembly in a two-in-one oral irrigator according to an embodiment of the utility model is shown;

[0023] Figure 4 Shows Figure 3 A schematic diagram of the enlarged structure of parts A and B;

[0024] Figure 5 It shows a schematic diagram of the structure of the working state 1 of the two-in-one water flosser according to the embodiment of the utility model, which is an electric toothbrush function;

[0025] Figure 6 It shows a structural schematic diagram of the micro-bubble nozzle function in working state 2 of the two-in-one oral irrigator according to an embodiment of the utility model;

[0026] Figure 7 It shows a structural schematic diagram of the wide-angle nozzle function in working state 3 of the two-in-one oral irrigator according to an embodiment of the utility model;

[0027] Figure 8 The structure diagram of the embodiment 1 of the external connector anti-detachment assembly in the two-in-one oral irrigator according to the utility model is shown;

[0028] Fig. 9 A structural schematic diagram of Example 2 of an external connector anti-detachment assembly in a two-in-one oral irrigator according to an embodiment of the utility model is shown.

[0029] The meaning of the numbers in the figure:

[0030] 1. Main body; 2. First motor; 21. Hollow shaft;

[0031] 3. Replacement head assembly; 31. Toothbrush head; 311. Limiting part; 32. Micro bubble nozzle; 33. Wide-angle spray nozzle; 34. Replacement head buckle; 35. Sealing ring;

[0032] 4. Water pipe assembly; 5. Built-in water suction pipe assembly;

[0033] 6. water pump assembly; 61. piston; 62. gear; 63. second motor;

[0034] 7. External water suction pipe assembly; 71. External water suction pipe; 72. Gravity ring; 73. Filter tip;

[0035] 8. External joint anti-detachment assembly; 801. Joint buckle; 802. External pipe joint; 803. External pipe anti-detachment joint; 804. Compression spring; 805. End cover; 806. Anti-detachment joint flange; 807. Boss; 808. Groove; 809. External pipe flange; 810. Water inlet adapter seal. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the relevant invention are shown in the accompanying drawings.

[0037] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] The utility model provides a two-in-one water flosser. Figure 1 The overall structure diagram of the two-in-one water flosser according to the embodiment of the utility model is shown as follows: Figure 1 and 2 As shown, the two-in-one tooth flosser includes a main body 1 and a first motor 2, and the first motor 2 is provided with a hollow shaft 21. Among them, a replacement head assembly 3 is provided at one end of the main body 1, and the replacement head assembly 3 is detachably connected to one end of the hollow shaft 21 protruding from the main body 1. The replacement head assembly 3 includes a toothbrush head 31 and a tooth flosser head.

[0039] In this embodiment, the first motor 2 can be a driving motor or a motor, preferably a hollow shaft sonic motor. It should be noted that in this embodiment, the tooth punching head includes a micro bubble nozzle 32 and a wide-angle spray nozzle 33. In other embodiments, the shape and function of the tooth punching head can be designed for applicability according to actual needs, and no specific limitation is made here.

[0040] Specifically, a limit portion 311 is provided inside the handle of the toothbrush head 31 to limit the relative rotation with the hollow shaft 21. Figure 3 and Figure 4As shown, the limiting portion 311 is integrally formed with the inner wall of the handle of the toothbrush head 31. After installation, the shape of the limiting portion 311 and the flat shape of the hollow shaft 21 at the end of the first motor 2 are pressed against each other to achieve the purpose of limiting the rotation of the toothbrush head.

[0041] It should be noted that in other embodiments, the shape of the limiting portion 311 can be actually changed and designed according to actual needs, and is not specifically limited here.

[0042] like Figure 3 As shown, the two-in-one water flosser is provided with a variety of replacement heads, including a toothbrush head 31, a microbubble nozzle 32 or a wide-angle spray nozzle 33, which can not only realize the fixation of the traditional electric toothbrush head, but also realize the 360° arbitrary rotation of the water flosser nozzle. The replacement head is equipped with a microbubble nozzle 32 and a wide-angle spray nozzle 33 to achieve powerful cleaning and fast water flossing. In the water flossing mode, a sonic motor is added to assist in swinging the nozzle of the water flosser to achieve swinging water flow water flossing. In addition, the replacement head adopts a plug-and-play design, which can be plugged in and out without pressing the buckle or push button, making installation and use more convenient.

[0043] Further, such as Figure 3 and Figure 4 As shown, the replacement head assembly 3 also includes a replacement head buckle 34, which is arranged inside the handle of the toothbrush head 31, the microbubble nozzle 32 or the wide-angle spray nozzle 33, and is connected to the hollow shaft 21 through the replacement head buckle 34. The replacement head buckle 34 is used to connect the hollow shaft 21 of the first motor 2, so as to facilitate the disassembly and installation of the two-in-one water flosser as a whole.

[0044] In addition, the replacement head assembly 3 further includes a sealing ring 35, which is disposed inside the handle of the toothbrush head 31, the microbubble nozzle 32 or the wide-angle spray nozzle 33, and the sealing ring 35 abuts against the replacement head buckle 34 and the handle of the toothbrush head 31, the microbubble nozzle 32 or the wide-angle spray nozzle 33. The sealing ring 35 further ensures the stability of the clamping connection between the replacement head assembly 3 and the hollow shaft 21 of the first motor 2, ensuring the safety of the two-in-one water flosser.

[0045] Specifically, Figure 2 and Figure 3 As shown, the main body 1 also includes a water pump assembly 6, the water outlet of the water pump assembly 6 is connected to the hollow shaft 21, and the water inlet of the water pump assembly 6 is connected to an external water source. The water pump assembly 6 includes a piston 61, a gear 62 and a second motor 63. The gear 62 is driven by the output shaft of the second motor 63 to rotate, and drives the piston 61 to reciprocate to pump water.

[0046] The first motor 2 is connected in series with the water path of the water pump assembly 6, and the two are connected through the water outlet seat. The water outlet seat and the contact position between the piston 61 in the water pump assembly 6 and the first motor 2 are all provided with sealing rings to seal the water path. The piston 61, the water outlet seat and the first motor 2 are installed in the inner core bracket inside the main body 1. The water pump assembly 6 draws water in through the water inlet end, and then passes the water from the water outlet end through the shaft hole of the hollow shaft 21 of the first motor 2 and then sprays it out from the nozzle.

[0047] Further, such as Figure 2 and Figure 3 As shown, it also includes a water pipe assembly 4, which includes a built-in water suction pipe assembly 5 and an external water suction pipe assembly 7. The water pump assembly 6 is connected to the external water source through the built-in water suction pipe assembly 5, the water pump assembly 6 is connected to the first motor 2, the other end of the water pump assembly 6 is connected to the built-in water suction pipe assembly 5, and the built-in water suction pipe assembly 5 is connected to the outside of the main body 1. The external water suction pipe assembly 7 is detachably connected to the side wall of the main body 1, and is connected to the built-in water suction pipe assembly 5 after installation. The external water suction pipe assembly 7 includes an external water suction pipe 71, a gravity ring 72 and a filter 73, and the filter 73 and the gravity ring 72 are sleeved on one end of the external water suction pipe 71. The design of the gravity ring 72 and the filter 73 makes it convenient to directly draw water from the external container and filter, which is further convenient for use.

[0048] Specifically, the two-in-one oral irrigator in this embodiment has the following three working states in actual use:

[0049] Working state 1: Electric toothbrush function

[0050] like Figure 2 and Figure 5 As shown, when the electric toothbrush function is used, the external water suction pipe assembly 7 can be disconnected, and the portion of the electric toothbrush head 31 where the hollow shaft 21 of the first motor 2 is installed is provided with a rotation limit, namely, a limit portion 311, to ensure that the brush head will not deflect when the electric toothbrush function is used. In addition, according to relevant experience, brushing teeth while spraying water with the replacement head will affect the cleaning effect of brushing teeth, so that the toothpaste cannot fully play its role, so the toothbrush head 31 is not designed to spray water.

[0051] Working state 2: Micro bubble nozzle 32 function

[0052] like Figure 2 and Figure 6 As shown, when the microbubble nozzle 32 is used for flushing teeth, the external water suction pipe assembly 7 is connected. At this time, unlike the electric toothbrush head 31, there is no rotation limit design, and the microbubble nozzle for flushing teeth can rotate 360° around the hollow shaft 21 at the end of the first motor 2. At the same time, the nozzle has a microbubble function, and the cleaning effect is better. In addition, the built-in buckle design can be directly plugged in and out, eliminating the need to press the card or push the button to take out the nozzle.

[0053] Working state 3: wide angle nozzle function

[0054] like Figure 2 and Figure 7 As shown, when the wide-angle spray nozzle 33 is used for flushing teeth, the external water suction pipe assembly 7 is connected. Unlike the electric toothbrush head 31, there is no rotation limit design, and the wide-angle spray nozzle 33 can rotate 360° around the hollow shaft 21 at the end of the first motor 2. Compared with the fixed nozzle of the two-in-one water flosser on the market, it is more comfortable to use and the wide-angle spray nozzle 33 has a wider area for flushing teeth. In addition, the built-in buckle design can be directly plugged in and out, eliminating the need to press the buckle or push the button to take out the nozzle.

[0055] Further, such as Figure 8 and Fig. 9 As shown, the external water suction pipe assembly 7 also includes an external joint anti-dropout assembly 8, which is arranged on one end of the external water suction pipe 71 away from the filter 73 and the gravity ring 72, and the external water suction pipe 71 is connected to the internal water suction pipe assembly 5 through the external joint anti-dropout assembly 8. The external water suction pipe of the two-in-one water flosser adopts a quick-insert anti-dropout design structure, which further ensures convenience of use while ensuring safety.

[0056] Embodiment 1:

[0057] like Figure 8 As shown, in this embodiment, the external connector anti-detachment assembly 8 includes a connector buckle 801, an external pipe connector 802, an external pipe anti-detachment connector 803, a clamping spring 804 and an end cover 805. The connector buckle 801 is arranged on the outer side wall of the host body 1, and the external pipe anti-detachment connector 803 is provided with an anti-detachment connector flange 806 that is mutually engaged with the connector buckle 801. The clamping spring 804 is sleeved on the external pipe connector 802 and abuts against the inside of the external pipe anti-detachment connector 803 through the end cover 805. Among them, a boss 807 is arranged on the anti-detachment connector flange 806, and a groove 808 that is engaged with the boss 807 is arranged on the connector buckle 801.

[0058] Specifically, when the external water suction pipe assembly 7 is connected to the two-in-one host body 1, the narrow side of the anti-detachment joint flange 806 on the external pipe anti-detachment joint 803 is aligned with the joint buckle 801 on the host body 1 and pressed into the mounting hole, and then the boss 807 of the anti-detachment joint flange 806 is turned 90° and snapped into the groove 808 of the joint buckle 801 to complete the installation, and the compression spring 804 prevents it from loosening.

[0059] When the external water suction pipe assembly 7 needs to be removed, the external pipe anti-detachment joint 803 is pressed along the axis of the external pipe joint 802 toward the main body 1 and then rotated 90° to pull out the external water suction pipe assembly 7.

[0060] Embodiment 2:

[0061] like Fig. 9 As shown, in this embodiment, the external connector anti-detachment assembly 8 includes an external pipe connector 802 and a connector buckle 801. The connector buckle 801 is arranged on the outer wall of the main body 1, and the external pipe connector 802 is arranged at one end of the external water suction pipe 71. The external pipe connector 802 is provided with an external pipe flange 809 which is mutually engaged with the connector buckle 801.

[0062] Furthermore, a boss 807 is provided on the external pipe flange 809, and a groove 808 is provided on the joint buckle 801 to engage with the boss 807. A water inlet adapter seal 810 with a certain elasticity is provided on the outer wall of the host body 1, and the water inlet adapter seal 810 protrudes from the outer wall of the host body 1.

[0063] Specifically, compared with Example 1, this embodiment simplifies the structure of the joint, and integrates the external pipe flange 809 and the boss 807 into the external pipe joint 802. Since the water inlet adapter seal 810 is an elastomer and has a function similar to a spring to provide a pre-tightening force, the water inlet adapter seal 810 is designed to protrude from the shell by a certain height, and the protruding portion provides a pre-tightening effect.

[0064] When the external water suction pipe assembly 7 is connected to the two-in-one host body 1, the narrow side of the external pipe joint 802 is aligned with the joint buckle 801 on the host body 1 and pressed into the installation hole, and then the boss 807 of the external pipe flange 809 is turned 90 degrees and snapped into the groove 808 of the main body joint buckle 801 to complete the installation, and the water inlet adapter seal 810 prevents it from loosening.

[0065] When the external water suction pipe assembly 7 needs to be removed, the external pipe joint 802 is pressed along the axis of the external pipe joint 802 toward the main body 1 and then rotated 90° to pull out the external water suction pipe assembly 7.

[0066] Specifically, Figure 2 and Figure 3 As shown, the two-in-one water flosser in this embodiment has two working modes:

[0067] In the water flosser mode, water flows from the external water suction pipe assembly 7 to the internal water suction pipe assembly 5, and then flows through the piston 61 of the water pump assembly 6 to the hollow shaft 21 of the first motor 2, and finally sprays out from the micro bubble nozzle 32 or the wide-angle spray nozzle 33 of the water flosser nozzle. In the water flosser mode, the first motor 2 can be selectively turned on, which can assist in realizing the oscillating nozzle water flow water flossing and improve the water flossing efficiency.

[0068] In the electric toothbrush mode, there is no need to connect the external water suction pipe assembly 7, and the toothbrush head 31 can be installed and used directly.

[0069] In addition, the two-in-one water flosser adopts a water tank-less design, which can directly draw water from an external container, making it convenient to carry and allowing for large-capacity external containers to absorb water.

[0070] Further, such as Figure 1 and 2 As shown, the specific operation of the two-in-one water flosser includes:

[0071] Connect the main body 1 of the two-in-one water flosser to the external water suction pipe assembly 7, and then insert the microbubble nozzle 32 into the hollow shaft 21 of the first motor 2 of the main body 1. The external water suction pipe assembly 7 can be placed in containers such as bottled water or cups to absorb water. Press the pump group switch button to start using the water flosser to flush teeth. If sonic oscillation and water spraying are required, press the sonic motor button. At this time, the water pump assembly 6 and the first motor 2 work at the same time. Press the pump group switch button again to shut down the entire two-in-one water flosser.

[0072] In addition, the two-in-one water flosser can realize interchangeable use of the nozzle and the toothbrush head 31. When the replacement head is switched to the toothbrush head 31, the external water suction tube assembly 7 can be unplugged, and the two-in-one water flosser without a water tank can be used as an electric toothbrush after pressing the sonic motor button. The body is compact and the grip feels almost the same as that of an electric toothbrush.

[0073] Compared with the prior art, the two-in-one oral irrigator disclosed in the utility model has the following advantages:

[0074] The two-in-one water flosser is equipped with a variety of replacement heads, which can not only fix the traditional electric toothbrush head, but also realize the 360° rotation of the water flosser nozzle. In the water flossing mode, a sonic motor is added to assist in swinging the water flosser nozzle to achieve swinging water flow for water flossing.

[0075] In the electric toothbrush mode, the external water suction pipe assembly 7 does not need to be connected, and the toothbrush head 31 can be installed and used directly;

[0076] It is also equipped with a micro bubble nozzle 32 and a wide-angle spray nozzle 33 to achieve powerful cleaning and fast flushing.

[0077] The whole machine adopts a water tankless design, which can directly draw water from an external container, making it convenient to carry and absorb water from a large-capacity external container; in addition, the external water suction pipe adopts a quick-insert and anti-fall-off design structure.

[0078] The above describes the specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

[0079] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The wording 'comprising' does not exclude the presence of elements or steps not listed in the claims. The wording 'one' or 'an' preceding an element does not exclude the presence of multiple such elements. The simple fact that certain measures are recorded in mutually different dependent claims does not indicate that a combination of these measures cannot be used for improvement. Any reference symbols in the claims should not be interpreted as limiting the scope.

Claims

1. A two-in-one oral irrigator, comprising a main body and a first motor, wherein the first motor is provided with a hollow shaft, characterized in that: It also includes a replacement head assembly, which is detachably connected to one end of the hollow shaft, and the other end of the hollow shaft is connected to a water inlet located in the host body. The replacement head assembly includes a toothbrush head and a toothbrush head.

2. The two-in-one oral irrigator according to claim 1, characterized in that: The handle of the toothbrush head is provided with a limit portion for limiting relative rotation with the hollow shaft. The replacement head assembly also includes a replacement head buckle. The toothbrushing head includes a microbubble nozzle and a wide-angle spray nozzle. The replacement head buckle is provided inside the handle of the toothbrush head, the microbubble nozzle or the wide-angle spray nozzle, and is clamped with the hollow shaft through the replacement head buckle.

3. The two-in-one oral irrigator according to claim 2, characterized in that: The replacement head assembly also includes a sealing ring, which is arranged inside the handle of the toothbrush head, microbubble nozzle or wide-angle spray nozzle, and the sealing ring abuts against the replacement head buckle and the inside of the handle of the toothbrush head, microbubble nozzle or wide-angle spray nozzle.

4. The two-in-one oral irrigator according to claim 1, characterized in that: It also includes a water pump assembly arranged inside the main body, the water outlet end of the water pump assembly is connected to the hollow shaft, the water inlet end of the water pump assembly is connected to an external water source, the water pump assembly includes a piston, a gear and a second motor, the gear is driven to rotate by the output shaft of the second motor, and drives the piston to reciprocate.

5. The two-in-one oral irrigator according to claim 4, characterized in that: It also includes a water pipe assembly, which includes an internal water suction pipe assembly and an external water suction pipe assembly. The water pump assembly is connected to an external water source through the internal water suction pipe assembly. The external water suction pipe assembly is detachably connected to the side wall of the main body and is connected to the internal water suction pipe assembly. The external water suction pipe assembly includes an external water suction pipe, a gravity ring and a filter. The filter and the gravity ring are sleeved on an end of the external water suction pipe away from the main body.

6. The two-in-one oral irrigator according to claim 5, characterized in that: The external water suction pipe assembly also includes an external joint anti-detachment assembly, which is arranged on one end of the external water suction pipe away from the filter tip and the gravity ring, and the external water suction pipe is connected to the internal water suction pipe assembly through the external joint anti-detachment assembly.

7. The two-in-one oral irrigator according to claim 6, characterized in that: The external connector anti-detachment assembly includes a connector buckle, an external tube connector, an external tube anti-detachment connector, a compression spring and an end cover. The connector buckle is arranged on the outer side wall of the main body. The external tube anti-detachment connector is provided with an anti-detachment connector flange which is engaged with the connector buckle. The compression spring is sleeved on the external tube connector and abuts against the inside of the external tube anti-detachment connector through the end cover.

8. The two-in-one oral irrigator according to claim 7, characterized in that: The anti-drop joint flange is provided with a boss, and the joint buckle is provided with a groove which is snap-fitted with the boss.

9. The two-in-one oral irrigator according to claim 6, characterized in that: The external joint anti-detachment assembly includes an external pipe joint and a joint buckle. The joint buckle is arranged on the outer side wall of the main body. The external pipe joint is arranged at one end of the external water suction pipe. The external pipe joint is provided with an external pipe flange that is mutually engaged with the joint buckle.

10. The two-in-one oral irrigator according to claim 9, characterized in that: A water inlet adapter seal is provided at the connection between the external joint anti-detachment component and the host body. The water inlet adapter seal protrudes from the outer side wall of the host body. A boss is provided on the external pipe flange, and a groove that is engaged with the boss is provided on the joint buckle.

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