Oral cavity cleaning device and oral cavity cleaner

Abstract

The utility model discloses an oral cavity cleaning device and an oral cavity cleaner.The oral cavity cleaning device comprises a machine shell which extends along a first axis and is provided with two opposite ends, a power cavity and a liquid storage cavity which extend along the first axis are defined, the power cavity is close to the first end of the machine shell, and the liquid storage cavity is close to the second end of the machine shell; the power device is at least partially arranged in the power cavity and comprises a power assembly and a connecting piece, the power assembly comprises a motor and a pump mechanism, the motor is located at the end, close to the first end of the machine shell, of the pump mechanism and comprises an output shaft with a first flow channel, and the first flow channel penetrates through the output shaft in the first axis direction; the pump mechanism comprises a liquid outlet end outputting fluid along a second axis, and the second axis intersects with the first axis. The connecting piece is provided with a second flow channel communicated with the liquid outlet end and the first flow channel. The oral cavity cleaning device and the oral cavity cleaner provided by the utility model have the advantage of being convenient for a user to clean.

Description

[0001] This application claims the priority of a Chinese patent application titled "Oral Cleaning Device and Oral Cleaner" with the application number 202421041797.5, which was filed with the Chinese Patent Office on May 13, 2024. The entire content of the aforementioned Chinese patent application is incorporated herein by reference. Technical Field

[0002] The embodiments of this application relate to the technical field of oral cleaning appliances, and particularly to an oral cleaning device and an oral cleaner. Background Art

[0003] With the increasing emphasis on oral care, electric toothbrushes and oral irrigators have gradually become common oral care tools in households. Among them, an electric toothbrush uses a motor to vibrate the brush head at a high frequency, so as to instantly decompose toothpaste into fine foam and deeply clean the tooth gaps. An oral irrigator uses a water pump to pump out a high-speed water column with a certain pressure, so as to clean the teeth and tooth gaps by the impact force of the high-speed water column.

[0004] Related oral cleaners can combine the functions of a toothbrush and an oral irrigator. Specifically, a related oral cleaner may include a body, a toothbrush, a motor, a water pump, and a water tank. Among them, the toothbrush is arranged at the head of the body, and the motor, the water pump, and the water tank are arranged inside the body. The output shaft of the motor has a flow channel for water to pass through, and this flow channel is communicated with the water tank. The toothbrush has a cavity and a flow outlet communicated with the cavity. The output shaft of the motor penetrates through the cavity, and the flow channel of the output shaft of the motor is communicated with the flow outlet, so that the liquid in the water tank can be ejected from the flow outlet via the flow channel under the action of the water pump.

[0005] However, the water tank of the related oral cleaner occupies the side of the body, resulting in a small diameter and a deep depth of the water tank, and having the disadvantage of inconvenient water tank cleaning. Summary of the Utility Model

[0006] The purpose of the embodiments of this application is to provide an oral cleaning device and an oral cleaner, which can solve the problem of inconvenient water tank cleaning.

[0007] To achieve the above object, on the one hand, an embodiment of the present application provides an oral cleaning device, including: a housing extending along a first axis and having opposite ends, defining a power cavity and a liquid storage cavity extending along the first axis, the power cavity being close to the first end of the housing, and the liquid storage cavity being close to the second end of the housing; a power device at least partially disposed in the power cavity, including a power assembly and a connecting member, the power assembly including a motor and a pump mechanism: the motor is located at one end of the pump mechanism close to the first end of the housing, and includes an output shaft having a first flow channel, the first flow channel penetrating the output shaft along the direction of the first axis; the pump mechanism includes a liquid outlet end for outputting fluid along a second axis, the second axis intersecting the first axis; the connecting member has a second flow channel communicating the liquid outlet end and the first flow channel.

[0008] Optionally, at least part of the planar projection of the power cavity along the first axis does not overlap with at least part of the planar projection of the liquid storage cavity along the first axis, or at least part of the planar projection of the liquid storage cavity along the first axis does not overlap with at least part of the planar projection of the power cavity along the first axis.

[0009] Optionally, at least part of the planar projection of the power cavity along the first axis overlaps with at least part of the planar projection of the liquid storage cavity along the first axis.

[0010] Optionally, the power assembly and the liquid storage cavity are arranged in sequence along the first axis; the connecting member has a third flow channel communicating the liquid inlet end of the pump mechanism and the liquid storage cavity.

[0011] Optionally, both the liquid inlet end and the liquid outlet end of the pump mechanism are arranged on one side of the pump mechanism along the second axis.

[0012] Optionally, it further includes a partition member accommodated in the inner cavity of the housing, and the partition member and the inner wall of the housing define the power cavity and the liquid storage cavity.

[0013] Optionally, the oral cleaning device further includes an energy source, and the energy source is located on the side of the pump mechanism away from the motor along the first axis.

[0014] Optionally, the motor, the pump mechanism, and the energy source are all arranged in the power cavity.

[0015] Optionally, at least part of the planar projection of at least part of the energy source along the first axis overlaps with at least part of the planar projection of the liquid storage cavity along the first axis.

[0016] Optionally, at least a part of one end of the energy source extending along the first axis direction is wrapped by the liquid storage cavity; or, a space for placing the energy source is formed between the partition member and the inner wall of the housing.

[0017] Optionally, when at least a part of one end of the energy source extending along the first axis direction is wrapped by the liquid storage cavity, the partition member is formed with a receiving opening and a receiving cavity for receiving the energy source, and the receiving opening is disposed on a side of the receiving cavity facing the pump mechanism along the first axis direction.

[0018] Optionally, the partition member includes a first part and a second part that are sequentially communicated along the first axis direction, and the first part is closer to the pump mechanism than the second part. The inner side wall of the first part forms the receiving opening and a part of the receiving cavity, and the inner side wall of the second part forms the other part of the receiving cavity; the shape of the outer side wall of the first part is adapted to the shape of the inner wall of the housing, and the outer side wall of the first part abuts against the inner wall of the housing; at least part of the liquid storage cavity is defined between the outer side wall of the second part and the inner wall of the housing.

[0019] Optionally, the partition member is formed with a communication hole that communicates the power cavity and the liquid storage cavity; the partition member further includes a third part, the third part is integrally connected to the first part, and the third part has a fourth flow channel for liquid flow, and the fourth flow channel communicates the communication hole with a side of the liquid storage cavity away from the pump mechanism.

[0020] Optionally, when a space for placing the energy source is formed between the partition member and the inner wall of the housing, the partition member includes a fourth part, the fourth part extends along the first axis direction, and at least part of the liquid storage cavity is formed between the fourth part and a part of the inner wall of the housing, and at least part of the receiving cavity is formed between the fourth part and another part of the inner wall of the housing.

[0021] Optionally, the partition member is formed with a communication hole that communicates the power cavity and the liquid storage cavity.

[0022] Optionally, the connecting member has a third flow channel that communicates the liquid inlet end of the pump mechanism and the liquid storage cavity, and the third flow channel of the connecting member is communicated with the liquid storage cavity through the communication hole.

[0023] Optionally, the separator is sealingly connected to the inner wall of the housing; and / or, the separator is snap-fitted to the housing; and / or, the separator is formed with a communication hole that communicates the power cavity with the liquid storage cavity; the communication hole is sealingly connected to the connecting member; and / or, the separator is detachably connected to the connecting member.

[0024] Optionally, the pump mechanism includes a liquid inlet end, a liquid outlet end, and a power end. The pump mechanism can pump liquid from the liquid inlet end into the pump chamber of the pump mechanism and pump it out from the liquid outlet end. Among them, the liquid outlet end cover part of the liquid outlet end and the liquid inlet end cover part of the liquid inlet end are integrated on the connecting member.

[0025] Optionally, the oral cleaning device further includes a mounting member. The mounting member is connected to the inner wall of the housing. The motor and the power end of the pump mechanism are spaced apart and mounted on the mounting member. The valve part of the liquid outlet end is integrated on the mounting member, and the end cover part of the liquid outlet end is integrated on the connecting member. The power end, at least part of the connecting member, and at least part of the mounting member are arranged in sequence along the liquid outlet direction of the liquid outlet end and are connected by fasteners.

[0026] Another aspect of the embodiments of the present application provides a cavity cleaner, including a cleaning accessory and the oral cleaning device as described above. The cleaning accessory has a cavity and a liquid outlet communicating with the cavity. The output shaft of the motor of the oral cleaning device is connected to the cleaning accessory and drives the cleaning accessory to perform a displacement movement, and the first flow channel of the output shaft communicates with the cavity of the cleaning accessory. The pump mechanism outputs a water flow impact through the liquid outlet.

[0027] The cleaning device and the oral cleaner provided by the embodiments of the present application include a housing. The housing defines a power cavity for placing a power device and a liquid storage cavity for storing liquid. Among them, the power cavity is close to the upper part of the housing, and the liquid storage cavity is close to the lower part of the housing. Compared with the water tank of the related oral cleaner occupying the side of the fuselage, the liquid storage cavity of the embodiments of the present application occupies the bottom side of the housing in the first axis direction, so that the liquid storage cavity sinks, the caliber of the liquid storage cavity is enlarged, and the longitudinal depth of the liquid storage cavity is reduced, which is beneficial for the user to clean the liquid storage cavity. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 It is a schematic diagram of a related oral cleaner;

[0030] Figure 2 Schematic diagram of an oral cleaner provided by an embodiment of the present application;

[0031] Figure 3 is Figure 2 A longitudinal sectional view of the oral cleaner shown;

[0032] Figure 4 is Figure 2 Partial view of another longitudinal section of the oral cleaner shown;

[0033] Figure 5 Internal layout diagram of an oral cleaning device provided by an embodiment of the present application;

[0034] Figure 6 Another internal layout diagram of an oral cleaning device provided by an embodiment of the present application;

[0035] Figure 7 is Figure 4 Cross-sectional view of the separator shown;

[0036] Figure 8 Partial cross-sectional view of a housing at an air flow groove provided by an embodiment of the present application;

[0037] Figure 9 Another partial cross-sectional view of a housing at an air flow groove provided by an embodiment of the present application;

[0038] Figure 10 Partial cross-sectional view of a housing at a non-air flow groove provided by an embodiment of the present application;

[0039] Figure 11 Schematic diagram of a cover body and a third sealing ring provided by an embodiment of the present application;

[0040] Figure 12 Exploded view of an oral cleaner provided by an embodiment of the present application;

[0041] Figure 13 is Figure 12 Exploded view of the motor, connecting member, mounting member and circuit board shown;

[0042] Figure 14 is Figure 13 Assembly perspective view of the mounting member, connecting member and pump mechanism shown;

[0043] Figure 15 Exploded view of the connecting member, mounting member and motor of the oral cleaner provided by an embodiment of the present application;

[0044] Figure 16 is Figure 15Exploded view of the pump mechanism, mounting member, and connecting member shown;

[0045] Figure 17 is Figure 3 partial schematic diagram of;

[0046] Figure 18 Exploded view of a connecting member provided by an embodiment of the present application.

[0047] Explanation of reference numerals:

[0048] 1000, oral cleaning device;

[0049] 100, housing; 110, power cavity; 120, liquid storage cavity; 130, housing body; 131, second mating surface; 140, cover; 141, third sealing groove; 142, third sealing cavity; 143, air flow groove; 144, diversion groove; 145, first mating surface; 160, top end; 170, bottom end; 180, microchannel; 190, assembly gap;

[0050] 200, motor; 210, output shaft; 211, first flow channel; 220, motor body;

[0051] 300, pump mechanism; 310, liquid inlet end; 311, first valve portion; 312, first end cover portion; 320, liquid outlet end; 321, second valve portion; 322, second end cover portion; 330, power end; 331, pump housing; 332, piston; 333, driving member;

[0052] 400, connecting member; 410, second flow channel; 411, first flow segment; 412, second flow segment; 4121, first arc segment; 4122, second arc segment; 420, third flow channel; 430, first connecting portion; 431, commutation cavity; 432, first inner arc surface; 440, second connecting portion; 441, second inner arc surface; 442, cover plate segment; 443, protruding segment; 444, baffle segment; 450, mounting groove;

[0053] 500, mounting member; 510, first mounting portion; 520, second mounting portion; 530, through hole;

[0054] 600, partition member; 610, accommodation cavity; 620, accommodation opening; 630, first portion; 640, second portion; 650, third portion; 651, fourth flow channel; 660, fourth portion; 670, fifth portion; 680, communication hole;

[0055] 710, energy source; 720, circuit board;

[0056] 810, first seal; 820, second seal; 830, third seal; 840, fourth seal;

[0057] 912. The second shock absorber; 913. The third shock absorber; 914. The fourth shock absorber;

[0058] 921. The first fastener; 922. The second fastener; 923. The third fastener; 924. The fourth fastener;

[0059] 2000. The cleaning accessory; 2100. The brush body; 2200. The cavity; 2300. The outflow port. Detailed implementation manners

[0060] Figure 1 is a schematic diagram of a related oral cleaner. Refer to Figure 1 , the body of the related oral cleaner is slender. Among them, the water tank is arranged on the right side of the body, and the motor, the water pump and the battery are arranged on the left side of the body. The longitudinal length of the water tank is almost equal to the longitudinal length of the body, and the diameter of the water tank is small, which makes it difficult for the user to clean the inner wall of the water tank. In addition, the water pump is arranged in the middle left position of the body, and the input end a and the output end b of the water pump are arranged on the upper part of the water pump, resulting in too long longitudinal distance between the input end a of the water pump and the bottom of the water tank, and thus the water path between the two is long, which is not conducive to the water pump sucking the liquid in the water tank.

[0061] In view of the above technical problems, the inventors of the present application thought of arranging the water tank at the lower part of the body, and arranging the motor, the water pump, etc. above the water tank to shorten the longitudinal length of the water tank for easy cleaning of the water tank; the transverse width of the body can also be reduced for easy holding by the user. However, such an arrangement will make the volume of the water tank smaller. In order to increase the volume of the water tank as much as possible, the inventors of the present application tried to shorten the longitudinal length of the water pump. Specifically, the input end and the output end of the water pump can be converted from being arranged above the water pump to being arranged on the lower side of the water pump, which not only increases the longitudinal depth of the sunken water tank, but also shortens the distance between the input end of the water pump and the bottom of the water tank, improving the pumping effect of the water pump. In addition, the side space of the water pump can be used to set up a commutation water path so that the output end of the water pump arranged on the lower side is communicated with the flow path of the output shaft of the motor arranged above. In this way, while ensuring the appearance of the slender body, the positions of the water tank, the water pump and the motor are reasonably arranged, not only increasing the volume of the sunken water tank, but also improving the pumping effect of the water pump.

[0062] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application.

[0063] Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0064] Figure 2 It is a schematic diagram of an oral cleaner provided by an embodiment of this application. Figure 3 is Figure 2 a longitudinal sectional view of the shown oral cleaner. Refer to Figure 2 and Figure 3 , the oral cleaner provided by the embodiment of this application may include an oral cleaning device 1000 and a cleaning attachment 2000. Among them, the cleaning attachment 2000 may be a toothbrush head, a rinsing head, a flushing and brushing integrated head, or other devices capable of cleaning the oral cavity. Figure 3 Taking the cleaning attachment 2000 as a flushing and brushing integrated head as an example in

[0065] Continue to refer to Figure 3 , the oral cleaning device 1000 may include a housing 100 and a power device. The power device may include a power assembly and a connecting member 400. Among them, in order to facilitate the user's grip, the housing 100 may be shaped like an elongated cylinder. The cross-sectional shape of the housing 100 may be circular or non-circular (such as D-shaped, oval, polygonal, etc.). The first axis X is the center line of the housing 100. That is to say, the center points of each cross-section of the housing 100 can be on the first axis X. The housing 100 may extend along the first axis X direction (such as Figure 3 the up and down direction in

[0066] The power assembly may be arranged in the inner cavity of the housing 100, and the power assembly may include a motor 200 and a pump mechanism 300. Among them, in order to meet the shape requirement of the elongated housing 100, the motor 200 and the pump mechanism 300 may be arranged in sequence along the first axis X direction. The motor 200 may be closer to the top end 160 of the housing 100 than the pump mechanism 300 (such as Figure 3The middle motor 200 is located above the pump mechanism 300), so that the output shaft 210 of the motor 200 passes through the top end 160 of the housing 100 and is connected to the cleaning accessory 2000 (such as an accessory with bristles like a toothbrush head, a flushing integrated head, etc.) to drive the cleaning accessory 2000 to move. The motor 200 can be a rotary motor 200 capable of rotating the cleaning accessory 2000; or, the motor 200 can be a vibration motor 200 capable of causing the cleaning accessory 2000 to swing at a high frequency (such as a sonic motor 200, etc.). The motor 200 can include a motor body 220 and an output shaft 210. Among them, the axis of the output shaft 210 can coincide with or be parallel and spaced from the first axis X of the housing 100. The output shaft 210 can be axially disposed through the motor body 220. Among them, the top end 160 of the axial direction of the output shaft 210 can pass through the top end 160 of the motor body 220 and can be connected to the cleaning accessory 2000 to drive the cleaning accessory 2000 to move.

[0067] The output shaft 210 can have a first flow channel 211 axially penetrating through the output shaft 210. The inner cavity of the housing 100 can include a liquid storage cavity 120, and the liquid storage cavity 120 can be used to store liquid. Figure 4 For Figure 2 A partial view of another longitudinal section of the shown oral cleaner. Refer to Figure 3 And Figure 4 , the connecting member 400 can have a second flow channel 410 and a third flow channel 420. It should be noted that the third flow channel 420 and the second flow channel 410 are not in the same longitudinal section. Therefore, Figure 3 The second flow channel 410 can be seen from the shown section, and Figure 4 The third flow channel 420 can be seen from

[0068] The third flow channel 420 can communicate the liquid storage cavity 120 with the liquid inlet end 310 of the pump mechanism 300, and the second flow channel 410 can communicate the liquid outlet end 320 of the pump mechanism 300 with the first flow channel 211. In this way, both the second flow channel 410 and the third flow channel 420 are integrated on the connecting member 400, which not only reduces the number of parts required for assembly and improves the assembly efficiency, but also improves the overall structural strength of the second flow channel 410 and the third flow channel 420 to resist the impact force of the water flow. Furthermore, the connection stability between the liquid storage cavity 120 and the second flow channel 410, between the second flow channel 410 and the pump mechanism 300, between the pump mechanism 300 and the third flow channel 420, and between the third flow channel 420 and the first flow channel 211 of the output shaft 210 is improved to reduce the risk of liquid leakage at the connection.

[0069] When cleaning an accessory such as a flushing head or a flushing and scouring integrated head that has a cavity 2200 and a liquid outlet 2300 communicating with the cavity 2200 and can eject liquid from the liquid outlet 2300, the first flow channel 211 of the output shaft 210 can communicate with the liquid outlet 2300 through the cavity 2200 of the cleaning accessory 2000. Figure 3 And Figure 4 The arrow in indicates the flow direction of the liquid. Refer to Figure 3 and Figure 4 the arrow identification in. When the oral cleaner realizes the flushing function, the pump mechanism 300 can guide the liquid in the liquid storage cavity 120 through the third flow channel 420 and the liquid inlet end 310 of the pump mechanism 300 into the pump cavity of the pump mechanism 300, and then through the liquid outlet end 320 of the pump mechanism 300 and the second flow channel 410 into the first flow channel 211, and then flow out from the liquid outlet 2300 through the cavity 2200 of the cleaning accessory 2000.

[0070] Refer to Figure 3 , the power assembly (motor 200 and pump mechanism 300) and the liquid storage cavity 120 can be arranged in sequence along the first axis X direction (such as Figure 1 the power assembly is located above the liquid storage cavity 120 in), so as to shorten the longitudinal length of the liquid storage cavity 120 to facilitate the user to clean the water tank; the transverse width of the housing 100 can also be reduced to facilitate the user to hold. Among them, the pump mechanism 300 can be closer to the liquid storage cavity 120 than the motor 200, so as to facilitate the pump mechanism 300 to suck liquid from the liquid storage cavity 120.

[0071] In order to increase the longitudinal height of the liquid storage cavity 120 to increase the volume of the liquid storage cavity 120, refer to Figure 3 and Figure 4 , optionally, the liquid outlet end 320 of the pump mechanism 300 can output liquid along the second axis Y, and both the liquid inlet end 310 and the liquid outlet end 320 of the pump mechanism 300 can be arranged on one side of the pump mechanism 300 along the second axis Y direction, where the second axis Y intersects with the first axis X. In this way, the length occupied by the pump mechanism 300 in the first axis X direction can be shortened, the length of the liquid storage cavity 120 in the first axis X direction can be increased, and further the volume of the liquid storage cavity 120 can be increased. Further, the second axis Y direction is perpendicular to the first axis X direction. Such as Figure 3 and Figure 4 in, the first axis X direction is the up and down direction, the second axis Y direction is the left and right direction, and both the liquid inlet end 310 and the liquid outlet end 320 of the pump mechanism 300 are arranged on the left side of the pump mechanism 300.

[0072] In order to effectively utilize the side space of the pump mechanism 300, further, the connecting piece 400 can be connected to one side of the pump mechanism 300 along the second axis Y direction (such as Figure 3 and Figure 4on the left side in), so that the third flow channel 420 and at least part of the second flow channel 410 are located on one side of the pump mechanism 300 along the second axis Y direction (such as Figure 3 and Figure 4 on the left side in). The connection part of the connecting piece 400 and the liquid storage cavity 120 can be located on one side of the pump mechanism 300 along the second axis Y direction (such as Figure 4 on the left side in), so as to shorten the distance between the liquid inlet end 310 of the pump mechanism 300 and the liquid storage cavity 120, so as to facilitate the pump mechanism 300 to suck the liquid in the liquid storage cavity 120.

[0073] Further, in the first axis X direction, the liquid inlet end 310 and the liquid outlet end 320 of the pump mechanism 300 can be closer to the liquid storage cavity 120. That is to say, the liquid inlet end 310 and the liquid outlet end 320 of the pump mechanism 300 are arranged at one end of the pump mechanism 300 closer to the liquid storage cavity 120 along the first axis X direction. In this way, the distance between the liquid inlet end 310 of the pump mechanism 300 and the bottom of the liquid storage cavity 120 is shortened, so as to facilitate the pump mechanism 300 to suck the liquid in the liquid storage cavity 120; and the distance between the liquid outlet end 320 of the pump mechanism 300 and the first flow channel 211 is increased, so as to reduce the impact force of the liquid at the liquid outlet end 320 of the pump mechanism 300 on the output shaft 210 of the motor 200, so as to facilitate the connection stability.

[0074] The oral cleaning device 1000 provided by the embodiment of the present application may further include an energy source 710, and the energy source 710 may be a rechargeable battery, a storage battery and other devices that can provide electric energy for the motor 200, the pump mechanism 300 and the electrical components on the circuit board 720. In order to make the oral cleaning device 1000 maintain a slender shape, the energy source 710 can be located on the side of the pump mechanism 300 away from the motor 200 along the first axis X direction (such as Figure 3 and Figure 4 on the lower side in). And at least part of the energy source 710 is arranged side by side with at least part of the liquid storage cavity 120. In other words, at least part of the plane projection of the energy source 710 along the first axis X at least partially overlaps with the plane projection of the liquid storage cavity 120 along the first axis X. That is to say, the energy source 710 and the liquid storage cavity 120 jointly occupy the bottom end 170 of the housing 100.

[0075] Figure 5 is an internal layout diagram of the oral cleaning device provided by the embodiment of the present application. Refer to Figures 3 - 5 , for example, the liquid storage cavity 120 can be wrapped on one side of the energy source 710 in the first axial direction. For example, Figure 5In [description], the liquid storage cavity 120 can wrap the outer side and the bottom surface of the energy source 710. That is to say, in the first axial direction, the energy source 710 has a top surface and a bottom surface arranged oppositely, and the housing 100 can have an inner top surface and an inner bottom surface arranged oppositely; there is a gap between the bottom surface of the energy source 710 and the inner bottom surface of the housing 100, and at least part of the liquid storage cavity is located between the bottom surface of the energy source 710 and the inner bottom surface of the housing 100. In other words, the liquid storage cavity 120 can be in the shape of a "concave", and the energy source 710 can be located in the depression of the concave-shaped liquid storage cavity 120. For another example, the liquid storage cavity 120 can only wrap the outer side of the energy source 710, that is to say, the bottom surface of the energy source 710 abuts against the inner bottom surface of the housing 100. In other words, at least part of one end of the energy source 710 extending along the first axis X direction is wrapped by the liquid storage cavity 120.

[0076] Figure 6 is another internal layout diagram of the oral cleaning device provided by the embodiment of the present application. Refer to Figure 6 , another exemplary, a space for placing the energy source 710 is formed between the liquid storage cavity 120 and the inner wall of the housing 100. In other words, a space for placing the energy source 710 is formed between the partition member 600 and the inner wall of the housing 100. For example, Figure 6 In [description], the liquid storage cavity 120 can wrap the bottom surface of the energy source 710 and at least part of the outer side of the energy source 710. That is to say, there is a gap between the bottom surface of the energy source 710 and the inner bottom surface of the housing 100, and at least part of the liquid storage cavity is located between the bottom surface of the energy source 710 and the inner bottom surface of the housing 100. In other words, the liquid storage cavity 120 can be in the shape of an L, and the energy source 710 can be located at the notch of the L-shaped liquid storage cavity 120. For another example, the liquid storage cavity 120 can only wrap the outer side of the energy source 710, that is to say, the bottom surface of the energy source 710 abuts against the inner bottom surface of the housing 100.

[0077] The liquid storage cavity 120 can be formed by a housing 130 independent of the housing 100, and the liquid storage cavity 120 can be detachably connected to the housing 100 so that the user can detach the liquid storage cavity 120 from the housing 100 for cleaning. Or, the liquid storage cavity 120 can be formed by the inner wall of the housing 100 and the partition member 600. Specifically, refer to Figure 5 and Figure 6 , the oral cleaning device 1000 provided by the embodiment of the present application can further include a partition member 600, and the partition member 600 can be arranged in the inner cavity of the housing 100 and can divide the inner cavity of the housing 100 into a power cavity 110 and a liquid storage cavity 120. Among them, the motor 200, the pump mechanism 300, and the energy source 710 can all be arranged in the power cavity 110.

[0078] Optionally, at least a part of the planar projection of the power cavity 120 along the first axis X does not overlap with the planar projection of the liquid storage cavity 110 along the first axis X; or, at least a part of the planar projection of the liquid storage cavity 110 along the first axis X does not overlap with the planar projection of the power cavity 120 along the first axis X.

[0079] Optionally, at least a part of the planar projection of the power cavity 120 along the first axis X overlaps with the planar projection of the liquid storage cavity 110 along the first axis X.

[0080] As Figure 5 And Figure 6 In Figure 5 And Figure 6 The inner housing wall of the housing 100 on the side of the separator 600 along the first axis X (such as Figure 5 And Figure 6 The left side of) can enclose the power cavity 110 together with the separator 600, and the inner housing wall of the housing 100 on the other side of the separator 600 along the first axis X (such as

[0081] Exemplarily, referring to Figure 4 And Figure 7 The separator 600 is detachably connected to the housing 100 so that the user can detach the separator 600 from the housing 100 for cleaning. Considering the sealing performance, a first sealing member 810 can be filled between the separator 600 and the housing 100. For example, a first sealing groove can be provided on the outer side wall of the separator 600, and a first sealing cavity can be formed between the first sealing groove and the inner housing wall of the housing 100. The first sealing member 810 can be a first sealing ring, and the first sealing ring can be sealed in the first sealing cavity to prevent liquid leakage. In addition, the separator 600 and the housing 100 can be detachably connected by a snap-fit connection; and / or, the separator 600 and the connecting member 400 (or the mounting member 500 mentioned below) are tightly connected by a fastener such as a bolt. Further, waterproof treatment can be performed at the fastener connection. For example, referring to Figure 12 The separator 600 can have a blind hole, the connecting member 400 or the mounting member 500 can be provided with a threaded hole, and the first fastener 921 can pass through the blind hole of the separator 600 and be threadedly connected to the threaded hole provided in the connecting member 400 or the mounting member 500.

[0082] Another exemplarily, the separator 600 and the housing 100 can be an integral part formed by an integral molding process to facilitate assembly and improve the connection strength.

[0083] Figure 7 For Figure 4 Shown is a cross-sectional view of the separator 600. Referring to Figure 4 And Figure 7, To enable the liquid inlet end 310 of the pump mechanism 300 disposed in the power cavity 110 to communicate with the liquid storage cavity 120, the partition member 600 may have a communication hole 680 that communicates the power cavity 110 with the liquid storage cavity 120, and the third flow channel 420 of the connecting member 400 may communicate with the liquid storage cavity 120 through the communication hole 680. To shorten the distance between the liquid inlet end 310 of the pump mechanism 300 and the liquid storage cavity 120, optionally, the communication hole 680 may be disposed on one side of the pump mechanism 300 along the second axis Y direction (such as Figure 4 the left side in

[0084] . To prevent liquid leakage, optionally, the connecting member 400 and the communication hole 680 may be sealingly connected through a second sealing member 820. Specifically, the outer sidewall of the connecting member 400 may have a second sealing groove, and a second sealing cavity may be formed between the second sealing groove and the inner hole wall of the communication hole 680. The second sealing member 820 may be a second sealing ring, and the second sealing ring may be sealed in the second sealing cavity.

[0085] The partition member 600 may form a receiving opening 620 and a receiving cavity 610 for receiving the energy source 710. The receiving opening 620 may be disposed on one side of the receiving cavity 610 along the first axis X direction facing the pump mechanism 300 (such as Figure 4 and Figure 7 the upper side in Figures 3 - 5 、 Figure 7 . Among them, the partition member 600 may be able to separately form the receiving opening 620 and the receiving cavity 610 as shown in Figure 6 . Or, the partition member 600 may form the receiving opening 620 and the receiving cavity 610 with the inner shell wall of the housing 100 as shown in

[0086] In one possible structure of the partition member 600, referring to Figures 3 - 5 、 Figure 7 , when the liquid storage cavity 120 is wrapped on one side of the energy source 710 along the first axis X direction, the partition member 600 may include a first part 630 and a second part 640 that are sequentially communicated along the first axis X direction, and the first part 630 may be closer to the pump mechanism 300 than the second part 640. Among them, the inner sidewall of the first part 630 may form a part of the receiving opening 620 and the receiving cavity 610, and the inner sidewall of the second part 640 may form another part of the receiving cavity 610. The shape of the outer sidewall of the first part 630 may be adapted to the shape of the inner shell wall of the housing 100, and the outer sidewall of the first part 630 abuts against the inner shell wall of the housing 100. The first part 630 may be formed with a communication hole 680. At least part of the liquid storage cavity 120 may be defined between the outer sidewall of the second part 640 and the inner shell wall of the housing 100.

[0087] For example, a fourth flow path 651 that connects the bottom of the liquid storage cavity 120 and the communication hole 680 may be provided in the liquid storage cavity 120. The fourth flow path 651 may be formed by an independent pipe body. Alternatively, the fourth flow path 651 may be formed by the partition member 600 to facilitate assembly and improve the connection strength between the fourth flow path 651 and the communication hole 680. Specifically, referring to Figure 4 , the partition member 600 may further include a third portion 650, and the third portion 650 is integrally connected to the first portion 630. And the third portion 650 may have a fourth flow path 651 for liquid to flow through, and the fourth flow path 651 may connect the communication hole 680 with the side of the liquid storage cavity 120 away from the pump mechanism 300. Further, the fourth flow path 651 may extend along the first axis X direction to facilitate reducing the water path length between the liquid inlet end 310 of the pump mechanism 300 and the side of the liquid storage cavity 120 away from the pump mechanism 300.

[0088] In another possible structure of the partition member 600, referring to Figure 6 , when a space for placing the energy source 710 is formed between the liquid storage cavity 120 and the inner shell wall of the housing 100, the partition member 600 may include a fourth portion 660, and the fourth portion 660 may extend along the first axis X direction. And at least part of the liquid storage cavity 120 may be formed between the fourth portion 660 and a part of the inner shell wall of the housing 100, and at least part of the accommodation cavity 610 may be formed between the fourth portion 660 and another part of the inner shell wall of the housing 100.

[0089] Further, the partition member 600 may further include a fifth portion 670, and the fifth portion 670 may be connected between the fourth portion 660 and the inner shell wall of the housing 100, and the fifth portion 670 may provide support for the energy source 710 in the first axis X direction.

[0090] Referring to Figure 1 , the water tank of the related oral cleaner often has a ventilation hole. The ventilation hole can allow air to enter the water tank when the pump mechanism 300 pumps water, and fill the space where the liquid is lost, ensuring the communication between the inner cavity of the water tank and the outside. The related ventilation hole is exposed, which affects the aesthetics of the oral cleaning device 1000; in addition, when holding the body, there is a risk of blocking the ventilation hole and affecting the operation of the water pump; in addition, if the ventilation hole is designed inside the body, additional ventilation pipelines need to be added in the inner cavity space, increasing the design difficulty.

[0091] In view of the above technical problems, the inventors of the present application came up with the idea of disassembling the fuselage into two parts that can be nested with each other, and using the assembly gap between these two parts to connect the inner cavity of the water tank with the outside world. In this way, the appearance of the device can be made pore-free. However, it is very difficult to control the assembly gap accurately. For the products on the same production line, some have a relatively large assembly gap, posing a risk of liquid leakage, while some have a relatively small assembly gap, making it difficult for external gas to pass through. Based on this, the inventors of the present application came up with the idea of forming a microchannel between the mating surfaces of these two parts. The cross-section of this microchannel can be set to be relatively small, enabling it to allow gas to flow through while blocking the outflow of liquid. The assembly gap can be made slightly larger to facilitate the passage of external gas and to ensure that the assembly gaps of the products on the same production line do not vary much.

[0092] Specifically, referring to Figure 3 , the housing 100 may include a housing body 130 and a cover body 140. The housing body 130 may include a top wall and side walls. The side walls of the housing body 130 may be connected to the outer periphery of the top wall of the housing body 130 and may extend along the first axis X direction. The top wall of the housing body 130 may have a through hole for the output shaft 210 of the motor 200 to pass through. The housing body 130 may have an opening, and this opening may be arranged as Figure 3 shown at one end of the housing body 130 along the first axis X direction and may be disposed opposite to the top wall of the housing body 130; alternatively, this opening may be arranged on the side wall of the housing body 130.

[0093] The cover body 140 may seal the opening of the housing body 130, so that the housing body 130 and the cover body 140 can enclose the inner cavity of the outer shell. The cover body 140 and the housing body 130 may be nested with each other along a preset direction. This preset direction may be the first axis X direction or may intersect the first axis X direction.

[0094] Specifically, the cover body 140 may include a bottom wall and side walls. The side walls of the cover body 140 may be connected to the outer periphery of the bottom wall of the cover body 140 and extend along a certain direction. The side walls and the bottom wall of the cover body 140 may form an inner cavity of the cover body 140 with one end open. The side walls of the cover body 140 may be Figure 3 shown to be embedded in the inner cavity of the housing body 130; alternatively, the side walls of the cover body 140 may be sleeved on the outside of the housing body 130. In addition, the cover body 140 and the housing body 130 may form at least a partial liquid storage cavity 120.

[0095] Referring to Figure 8 and Figure 9 , the cover body 140 may have a first mating surface 145, and the housing body 130 may have a second mating surface 131 disposed opposite to the first mating surface 145. An assembly gap 190 may be formed between the first mating surface 145 and the second mating surface 131. For example, Figure 3In it, the cover body 140 can be embedded in the inner cavity of the housing 130. The outer side surface of the cover body 140 embedded in the housing 130 can be the first mating surface 145, and the outer side surface of the housing 130 sleeved on the outside of the cover body 140 can be the second mating surface 131. For another example, the cover body 140 can be sleeved on the outside of the housing 130. The inner side surface of the cover body 140 can be the first mating surface 145, and the outer side surface of the housing 130 can be the second mating surface 131. In this way, the gas flow channel can be hidden inside the device to avoid blocking the gas flow channel, which has the advantages of facilitating ventilation and a pore-free appearance.

[0096] In addition, a micro-channel 180 can be formed between the housing 130 and the cover body 140. The micro-channel 180 can allow gas to pass through along the first axis X direction and block the outflow of liquid, and the micro-channel 180 uses the assembly gap 190 between the housing 130 and the cover body 140 to connect the liquid storage cavity 120 with the outside. Optionally, in a preset direction, the liquid storage cavity 120 can be higher than the micro-channel 180. So that the water level height in the liquid storage cavity 120 can be higher than the micro-channel 180.

[0097] Specifically, the liquid level height in the liquid storage cavity 120 being higher than the micro-channel 180 can cause a pressure difference to be formed between the external air pressure (one atmospheric pressure) and the air pressure in the liquid storage cavity 120 (less than one atmospheric pressure). Under the action of this pressure difference, gas can flow and liquid outflow can be blocked to achieve the purpose of ventilation and leak prevention. It should be noted that the "blocking the outflow of liquid" mentioned above can be understood in a broad sense, which means that when the oral cleaning device 1000 is in a static state or the user is holding it normally, the micro-channel 180 can block the outflow of liquid. When the user shakes it vigorously, the surface tension may be damaged and the air pressure may be affected, resulting in liquid leaking out from the micro-channel 180.

[0098] Next, refer to Figure 8 and Figure 9 to describe the formation method of the micro-channel 180. Specifically, a third sealing groove 141 can be provided on the side wall of one of the housing 130 and the cover body 140, and the third sealing groove 141 can have an opening facing outward. The side wall of the other of the housing 130 and the cover body 140 can be combined with the third sealing groove 141 to enclose a third sealing cavity 142, and the third sealing cavity 142 can connect the liquid storage cavity 120 with the outside through the assembly gap 190. An air flow groove 143 can be provided at the bottom of the third sealing groove 141, and the air flow groove 143 can have an opening facing the third sealing cavity 142.

[0099] For example, Figure 8 in Figure 9In this case, the cover body 140 is embedded in the inner cavity of the housing 130. A third sealing groove 141 may be provided on the side wall of the cover body 140, and the third sealing groove 141 may have an opening facing outward. The side wall of the housing 130 and the third sealing groove 141 may enclose a third sealing cavity 142. As another example, the cover body 140 may be sleeved outside the housing 130. A third sealing groove 141 may be provided on the side wall of the housing 130, and the third sealing groove 141 may have an opening facing outward. The side wall of the cover body 140 and the third sealing groove 141 may enclose a third sealing cavity 142.

[0100] Figure 10 is a cross-sectional view of the casing 100 provided by an embodiment of the present application at the non-airflow groove 143. Refer to Figure 10 , the casing 100 may further include a third sealing member 830. The third sealing member 830 may be clamped between the inner side wall of the other one of the housing 130 and the cover body 140 and the bottom of the third sealing groove 141. Wherein, the cross-sectional shape of the third sealing member 830 may be circular, polygonal, etc., and the embodiment of the present application does not specifically limit the cross-sectional shape of the third sealing member 830.

[0101] Continue to refer to Figure 8 and Figure 9 , a microchannel 180 is formed between the surface of the third sealing member 830 close to the airflow groove 143 and the airflow groove 143. In this way, the sealing cavity is sealed by the third sealing member 830 at the non-airflow groove 143. A microchannel 180 for allowing gas to flow through and blocking liquid from flowing through is formed at the airflow groove 143. The processing depth of the airflow groove 143 is generally relatively precise, so that the size of the formed microchannel 180 can be accurately controlled. In this way, the casing 100 provided by the embodiment of the present application can not only achieve ventilation and liquid blocking, but also has a high yield rate. In addition, when the pump mechanism 300 sucks liquid, the third sealing member 830 will be flattened and deformed, so that the assembly gap 190 becomes larger, which has a better effect of facilitating air intake.

[0102] The liquid level difference h formed by the highest liquid level height of the liquid storage cavity 120 and the horizontal plane where the airflow groove 143 is located satisfies the following condition: 0 < ρ * g * h ≤ 30% * Po; where ρ represents the air density; g represents the liquid density; Po represents an atmospheric pressure. Where ρ represents the air density; g represents the liquid density; Po represents an atmospheric pressure.

[0103] Specifically, the greater the difference between the liquid pressure in the liquid storage cavity 120 and the external atmospheric pressure, the more it indicates that gas can flow from the outside to the liquid storage cavity 120, and the more leakage can be avoided. On the contrary, the smaller the difference between the liquid pressure in the liquid storage cavity 120 and the external atmospheric pressure, the more it indicates that gas is not easy to flow from the outside to the liquid storage cavity 120, and liquid leakage may occur. After verification by the inventor of the present application, it is found that when the liquid level difference h satisfies the above conditions, the microchannel 180 can pass gas and block liquid from leaking out.

[0104] In order to further prevent liquid from leaking out, the liquid level difference h may satisfy 0<ρ*g*h≤20%*Po; in order to further prevent liquid from leaking out, the liquid level difference h may satisfy 0<ρ*g*h≤10%*Po. For example, ρ*g*h≤10%*Po, ρ*g*h≤5%*Po, ρ*g*h≤1%*Po.

[0105] Further, the depth of the airflow groove 143 may range from 0.1 mm to 0.4 mm, so as to block the passage of liquid while the gas passes through. For example, the depth of the airflow groove 143 may be 0.1 mm, 0.3 mm, 0.4 mm, etc. Further, the depth of the airflow groove 143 may range from 0.25 mm to 0.34 mm, so as to further facilitate air ventilation and liquid blocking. For example, the depth of the airflow groove 143 may be 0.25 mm, 0.30 mm, 0.34 mm, etc.

[0106] In the preset direction, the third sealing groove 141 can be Figure 8 and Figure 9 The third sealing groove 141 may have two groove side walls that are opposite to each other, and the groove bottom wall may be connected between the two groove side walls; alternatively, the third sealing groove 141 may have a first groove side wall that may be used to support one side of the third sealing member 830 .

[0107] When the third sealing member 830 has two groove side walls, in order to allow the gas in the third sealing cavity 142 to flow in and out, for example, refer to Figure 8 In the preset direction, the height of the third sealing member 830 can be less than the height of the bottom wall of the groove. In this way, a channel connected to the microchannel 180 can be formed between the third sealing member 830 and one of the groove side walls, and a channel connected to the microchannel 180 can also be formed between the third sealing member 830 and the other groove side wall. In this way, the gas entering the third sealed cavity 142 can be Figure 8 The arrows shown indicate that the gas flows out of the third sealed cavity 142 after circumnavigating the third sealing member 830 for at least half a circle. Figure 11 As shown, it penetrates the bottom wall of the groove along a preset direction.

[0108] Another exemplary reference Figure 9 , both inner side walls may be provided with guide grooves 144, the guide grooves 144 may have an opening toward the third sealed cavity 142, and a channel for gas to flow through may be formed between the guide grooves 144 and the third sealing member 830, and the channel is connected to the microchannel 180. The gas entering the third sealed cavity 142 passes through the channel and the microchannel 180. Figure 9 The arrows shown indicate that the liquid flows out of the third sealing cavity 142 after surrounding the third sealing member 830 for at least half a circle. Further, the guide groove 144 may penetrate the groove side wall in a direction perpendicular to the groove bottom wall.

[0109] Similarly, when the third seal 830 has a groove side wall, the gas inflow and outflow in the third seal cavity 142 can be achieved by reducing the height of the third seal 830 or by providing a diversion groove 144 on the groove side wall.

[0110] Optionally, referring to Figure 11 , the circumferential length of the air flow groove 143 is shorter than the circumferential length of the seal groove. The air flow groove 143 can be one or more. When there are multiple air flow grooves 143, the multiple air flow grooves 143 can be arranged at intervals.

[0111] Optionally, the cover 140 is detachably connected to the housing 130 so that when the liquid storage cavity 120 needs to be drained, the cover 140 can be detached from the housing 130 to achieve the purpose of rapid drainage.

[0112] Figure 12 This is an exploded view of the oral cleaner provided by the embodiment of the present application. Referring to Figure 12 , the oral cleaner provided by the embodiment of the present application may further include a mounting member 500. For the convenience of assembly, the mounting member 500 is fixed to the inner wall of the housing 100, and both the motor 200 and the pump mechanism 300 can be mounted on the mounting member 500. In this way, during assembly, the motor 200 and the pump mechanism 300 can be first assembled on the mounting member 500, and then the two are assembled as an assembly into the housing 100.

[0113] It should be noted that both the motor 200 and the pump mechanism 300 generate vibrations during operation, resulting in poor connection reliability of the pipeline connecting the liquid outlet end 320 of the pump mechanism 300 and the first flow channel 211 of the output shaft 210, and it is extremely easy to fall off. In view of the above problems, the inventor of the present application disassembled the pump mechanism 300 into a power end 330, a liquid inlet end 310, and a liquid outlet end 320, and integrated the liquid outlet end 320 on the connecting member 400 and the mounting member 500, so as to reduce the resonance situation and improve the connection reliability at the connection between the second flow channel 410 of the connecting member 400 and the liquid outlet end 320 of the pump mechanism 300.

[0114] Specifically, referring to Figures 13 - 16, the second valve portion 321 of the liquid outlet end 320 can be integrated into the mounting member 500, and the second end cap portion 322 of the liquid outlet end 320 can be integrated into the connecting member 400. The power end 330, at least a part of the connecting member 400, and at least a part of the mounting member 500 can be arranged in sequence along the liquid outlet direction (the direction of the second axis Y) of the liquid outlet end 320 and can be connected by a third fastener 923. In this way, the mounting member 500 is blocked between the connecting member 400 and the power end 330 of the pump mechanism 300, so that most of the vibration of the pump body is transmitted to the mounting member 500. A vibration damping member can be provided between the mounting member 500 and the inner shell wall of the machine shell 100, and the mounting member 500 can eliminate vibration through vibration damping connection, so that the vibration transmitted from the power end 330 of the pump mechanism 300 to the connecting member 400 is small or even none. In this way, the influence of the vibration of the power end 330 of the pump mechanism 300 on the connecting member 400 is reduced, and the connection reliability at the connection between the second flow channel 410 of the connecting member 400 and the liquid outlet end 320 of the pump mechanism 300 is improved. In addition, integrating the liquid outlet end 320 on the mounting member 500 and the connecting member 400 is not only convenient for assembly, but also has a shorter water path and stronger connection reliability.

[0115] Optionally, the power end 330 may include a pump housing 331 and a piston 332. One end of the pump housing 331 may have an opening. The mounting member 500 can cover the opening, and the mounting member 500 and the pump housing 331 can enclose a pump chamber of the pump mechanism 300 for the piston 332 to reciprocate along the liquid outlet direction of the liquid outlet end 320. The mounting member 500 may have a liquid outlet hole penetrating through the mounting member 500 and communicating with the pump chamber of the pump mechanism 300. The second valve portion 321 of the liquid outlet end 320 is arranged at the liquid outlet hole, and the second valve portion 321 of the liquid outlet end 320 can allow liquid to be pumped out of the pump chamber through the liquid outlet hole and prevent liquid from flowing into the pump chamber through the liquid outlet hole.

[0116] Specifically, the piston 332 reciprocates in the pump chamber, which can pump the liquid in the pump chamber out of the liquid outlet hole; the valve of the liquid outlet end 320 has a one-way conduction function to prevent the liquid from flowing back into the pump chamber through the liquid outlet hole. In this solution, the mounting member 500 is used to form the pump chamber and the liquid outlet hole, achieving the purpose of integrating the valve portion of the liquid outlet end 320.

[0117] Optionally, referring to Figure 16 , the power end 330 may further include a driving member 333. The driving member 333 may have a driving shaft that rotates relative to the pump housing 331. The driving shaft can drive an eccentric wheel to rotate relative to the pump housing 331, and the eccentric wheel can abut against the piston 332 to make a reciprocating motion.

[0118] Referring to Figures 15 - 17, Optionally, at least part of the connecting member 400 and the second end cover portion 322 of the liquid outlet end 320 may be an integral part formed by an integral molding process. The second end cover portion 322 of the liquid outlet end 320 may cover the liquid outlet hole, and the second end cover portion 322 of the liquid outlet end 320 may form a liquid outlet channel communicating the liquid outlet hole with the second flow channel 410.

[0119] Specifically, the liquid outlet channel of the second end cover portion 322 of the liquid outlet end 320 can guide the flow direction of the liquid flowing out of the liquid outlet hole. In this solution, the connecting member 400 and the second end cover portion 322 of the liquid outlet end 320 are an integral part, so that the liquid outlet channel and the second flow channel 410 are integral, which is beneficial to improving the connection reliability at the connection, beneficial to improving the smoothness of liquid flow, and beneficial to improving the convenience of assembly.

[0120] , Optionally, the mounting member 500 may have a liquid inlet hole penetrating through the mounting member 500 and communicating with the pump chamber of the pump mechanism 300. The first valve portion 311 of the liquid inlet end 310 may be disposed in the liquid inlet hole, and the first valve portion 311 of the liquid inlet end 310 may allow liquid to be pumped into the pump chamber through the liquid inlet hole and prevent the liquid from flowing out through the liquid inlet hole.

[0121] Specifically, the piston 332 reciprocates in the pump chamber, which can pump the liquid from the liquid inlet hole into the pump chamber; the valve of the liquid inlet end 310 has a one-way conduction function to prevent the liquid from flowing out through the liquid inlet hole. In this solution, the pump chamber and the liquid inlet hole are formed by using the mounting member 500 to achieve the purpose of integrating the first valve portion 311 of the liquid inlet end 310.

[0122] , Optionally, at least part of the connecting member 400 and the first end cover portion 312 of the liquid inlet end 310 may be an integral part formed by an integral molding process. The first end cover portion 312 of the liquid inlet end 310 may cover the liquid inlet hole, and the first end cover portion 312 of the liquid inlet end 310 may form a liquid inlet channel communicating with the liquid inlet hole, and the liquid inlet channel may communicate with the third flow channel 420 of the connecting member 400. In this way, the liquid inlet channel of the first end cover portion 312 of the liquid inlet end 310 can guide the flow direction of the liquid flowing into the liquid inlet hole. In this solution, the connecting member 400 and the first end cover portion 312 of the liquid inlet end 310 are an integral part, so that the liquid inlet channel and the third flow channel 420 are integral, which is beneficial to improving the connection reliability at the connection, beneficial to improving the smoothness of liquid flow, and beneficial to improving the convenience of assembly.

[0123] Reference Figures 13 - 16, Optionally, the mounting member 500 may include a first mounting portion 510. The first mounting portion 510 may have a first side and a second side that are oppositely arranged along the liquid outlet direction of the liquid outlet end 320. The motor 200 and the power end 330 of the pump mechanism 300 may be axially spaced along the output shaft 210 on the first side of the first mounting portion 510. A part of the connecting member 400 integrated with the second end cover portion 322 of the liquid outlet end 320 may be disposed on the second side of the first mounting portion 510. The mounting member 500 may have a through hole 530 through which the connecting member 400 passes and that limits at least one side of the connecting member 400 along the axial direction of the output shaft 210. In this way, the through hole 530 can be used to limit the connecting member 400, so as to provide upward support and limit for the connecting member 400 to prevent the connecting member 400 from vibrating up and down. Optionally, the circuit board 720 may be mounted on the side of the first mounting portion 510 facing away from the motor 200 by a fourth fastener 924. A fourth vibration damping member 914 may be provided between the circuit board 720 and the inner shell wall of the housing 100.

[0124] Reference Figure 12 And Figure 13 , Optionally, the mounting member 500 may further include a second mounting portion 520. The second mounting portion 520 may be connected in an opposing manner to the first side of the first mounting portion 510, and the second mounting portion 520 and the first mounting portion 510 may enclose a receiving space for wrapping the outer side surface of the motor 200. In this way, the mounting member 500 wraps around the outer side surface of the motor 200, so that most of the vibrations of the motor 200 are transmitted to the mounting member 500, and further, the vibrations transmitted from the motor 200 to the connecting member 400 are small or even non-existent. In this way, the influence of the vibration of the power end 330 of the motor 200 on the connecting member 400 is reduced, and the connection reliability at the connection between the second flow channel 410 of the connecting member 400 and the first flow channel 211 of the motor 200 is improved. Optionally, reference Figure 13 , The first mounting portion 510 and the second mounting portion 520 may be fixedly connected by a second fastener 922.

[0125] Optionally, a vibration damping member is interposed between the first mounting portion 510 and the outer side surface of the motor 200; and / or, a vibration damping member is interposed between the second mounting portion 520 and the outer side surface of the motor 200. In this way, the vibration transmission between the motor 200 and the mounting member 500 can be reduced by the vibration damping member. For example, Figure 13 in, a second vibration damping member 912 is interposed between the front end of the motor 200 and the mounting member 500, and a third vibration damping member 913 is interposed between the rear end of the motor 200 and the mounting member 500.

[0126] Reference Figure 17, Optionally, the connecting member 400 may have an installation groove 450 for the output shaft 210 of the motor 200 to penetrate. A fourth seal 840 may be filled between the inner groove wall of the installation groove 450 and the output shaft 210 of the motor 200. Specifically, the first flow channel 211 of the output shaft 210 and the second flow channel 410 of the connecting member 400 may communicate at the installation groove 450. The seal is provided to prevent the liquid from leaking out at the communicating part.

[0127] Continue to refer to Figure 17 , Optionally, the motor 200 may include a motor body 220 and an output shaft 210. The output shaft 210 of the motor 200 may penetrate through the motor body 220, and both axial ends of the output shaft 210 may penetrate out of the motor body 220. The bottom surface of the motor body 220 and the inner groove wall of the installation groove 450 may enclose a limiting space for limiting the fourth seal 840. This limiting space may limit both ends of the fourth seal 840 in the axial direction of the output shaft 210. In this way, the bottom surface of the motor body 220 of the motor 200 and the bottom wall of the installation groove 450 can be used to limit the fourth seal 840 to prevent the fourth seal 840 from moving with vibration.

[0128] Refer to Figure 17 , The second flow channel 410 may include a first flow segment 411 and a second flow segment 412 that are sequentially connected. The first flow segment 411 communicates with the liquid outlet end 320 and may extend along the first axis X direction, and there is a spacing between the first flow segment 411 and the first flow channel 211 in the second axis direction. The second flow segment 412 may connect the first flow segment 411 and the first flow channel 211, and the second flow segment 412 may include a first arc segment 4121. The first arc segment 4121 may be in arc transition with the first flow segment 411. The arc transition is used to reduce the resistance of the inner wall of the flow channel to the liquid and facilitate the flow of the liquid.

[0129] Further, the first arc segment 4121 may be higher than the pump mechanism 300, and the first arc segment 4121 may have an arc center facing the pump mechanism 300, so that the liquid flows more gently towards the first flow channel 211 to further reduce the resistance of the inner wall of the flow channel to the liquid.

[0130] Optionally, the second flow segment 412 further includes a second arc segment 4122. The second arc segment 4122 is in arc transition with the first flow channel 211. In order to utilize the arc transition to reduce the resistance of the inner wall of the flow channel to the liquid and facilitate the flow of the liquid.

[0131] Further, the second arc segment 4122 has an arc center facing the motor 200, so that the second arc segment 4122 and the first flow channel 211 are smoothly joined, facilitating the flow of the liquid.

[0132] Refer to Figure 17 And Figure 18, Optionally, the connecting member 400 may include a first connecting portion 430 and a second connecting portion 440 connected to each other. The first connecting portion 430 may have a first flow segment 411 and a reversing chamber 431 communicating with the first flow segment 411. The reversing chamber 431 may have a first inner arc surface 432, and the reversing chamber 431 may have an opening in the first axis X direction. At least a part of the second connecting portion 440 may be placed in the reversing chamber 431 through the opening of the reversing chamber 431 and may have a second inner arc surface 441. The first inner arc surface 432 and the second inner arc surface 441 may enclose a second flow segment 412.

[0133] Specifically, the second connecting portion 440 may include a cover plate segment 442, a protruding segment 443, and a baffle segment 444. The protruding segment 443 and the baffle segment 444 may be respectively connected to both sides of the cover plate segment 442 along the first axis X direction. The cover plate segment 442 may cover the reversing chamber 431, and the baffle segment 444 may be located in the reversing chamber 431 and may have a second inner arc surface 441. The cover plate segment 442 may be provided with a through hole, the protruding segment 443 may surround the outside of the through hole, and the inner cavity of the protruding segment 443 may communicate with the through hole. The output shaft 210 may pass through the inner cavity of the protruding segment 443 and the through hole, and a fourth seal 840 is provided between the output shaft 210 and the inner cavity wall of the protruding segment 443. Thus, the protruding segment 443 and a part of the cover plate segment 442 may form the installation groove 450 mentioned above.

Claims

1. An oral cleaning device, characterized in that: include: A housing (100) extending along a first axis (X) and having two opposite ends, defining a power cavity (110) and a liquid storage cavity (120) extending along the first axis (X), wherein the power cavity (110) is close to the first end of the housing (100), and the liquid storage cavity (120) is close to the second end of the housing (100); A power device at least partially disposed in the power cavity (110), comprising a power assembly and a connecting member (400), wherein the power assembly comprises a motor (200) and a pump mechanism (300); the motor (200) is located at one end of the pump mechanism (300) close to the first end of the housing (100), and comprises an output shaft (210) having a first flow channel (211), wherein the first flow channel (211) penetrates the output shaft (210) along a first axis (X); the pump mechanism (300) comprises a liquid outlet (320) for outputting fluid along a second axis (Y), wherein the second axis (Y) intersects with the first axis (X); and the connecting member (400) comprises a second flow channel (410) connecting the liquid outlet (320) and the first flow channel (211).

2. The oral cleaning device according to claim 1, characterized in that: The plane projection of the power cavity (110) along the first axis (X) at least partially does not overlap with the plane projection of the liquid storage cavity (120) along the first axis (X), or the plane projection of the liquid storage cavity (120) along the first axis (X) at least partially does not overlap with the plane projection of the power cavity (110) along the first axis (X).

3. The oral cleaning device according to claim 1, characterized in that: The plane projection of the power cavity (110) along the first axis (X) at least partially overlaps with the plane projection of the liquid storage cavity (120) along the first axis (X).

4. The oral cleaning device according to any one of claims 1 to 3, characterized in that: The connecting member (400) has a third flow channel (420) connecting the liquid inlet end (310) of the pump mechanism (300) and the liquid storage cavity (120).

5. The oral cleaning device according to claim 4, characterized in that: The liquid inlet end (310) and the liquid outlet end (320) of the pump mechanism (300) are both arranged on one side of the pump mechanism (300) along the direction of the second axis (Y).

6. The oral cleaning device according to claim 1, characterized in that: It also includes a partition (600) accommodated in the inner cavity of the casing (100), wherein the partition (600) and the inner shell wall of the casing (100) define the power cavity (110) and the liquid storage cavity (120).

7. The oral cleaning device according to claim 6, characterized in that: It also includes an energy source (710), which is located on a side of the pump mechanism (300) away from the motor (200) along the direction of the first axis (X).

8. The oral cleaning device according to claim 7, characterized in that: The motor (200), the pump mechanism (300) and the energy source (710) are all arranged in the power cavity (110).

9. The oral cleaning device according to claim 7, characterized in that: At least a portion of the planar projection of the energy source (710) along the first axis (X) at least partially overlaps with a planar projection of the liquid storage cavity (120) along the first axis (X).

10. The oral cleaning device according to claim 7, characterized in that: One end of the energy source (710) extending along the direction of the first axis (X) is at least partially wrapped by the liquid storage cavity (120); or, A space for placing the energy source (710) is formed between the partition (600) and the inner shell wall of the shell (100).

11. The oral cleaning device according to claim 10, characterized in that: When one end of the energy source (710) extending along the first axis (X) direction is at least partially wrapped by the liquid storage cavity (120), the partition (600) is formed with a receiving port (620) and a receiving cavity (610) for receiving the energy source (710), and the receiving port (620) is arranged on a side of the receiving cavity (610) along the first axis (X) direction toward the pump mechanism (300).

12. The oral cleaning device according to claim 11, characterized in that: The partition (600) comprises a first portion (630) and a second portion (640) which are sequentially connected along the first axis (X), and the first portion (630) is closer to the pump mechanism (300) than the second portion (640), the inner side wall of the first portion (630) forms the accommodating port (620) and a portion of the accommodating cavity (610), and the inner side wall of the second portion (640) forms another portion of the accommodating cavity (610); The shape of the outer wall of the first part (630) is adapted to the shape of the inner wall of the housing (100), and the outer wall of the first part (630) abuts against the inner wall of the housing (100); At least a portion of the liquid storage cavity (120) is defined between the outer wall of the second portion (640) and the inner wall of the housing (100).

13. The oral cleaning device according to claim 12, characterized in that: The partition (600) is formed with a communication hole (680) that communicates the power cavity (110) with the liquid storage cavity (120); The partition (600) further includes a third portion (650), wherein the third portion (650) is integrally connected to the first portion (630), and the third portion (650) has a fourth flow channel (651) for liquid flow, wherein the fourth flow channel (651) connects the connecting hole (680) with a side of the liquid storage cavity (120) away from the pump mechanism (300).

14. The oral cleaning device according to claim 11, characterized in that: When a space for placing the energy source (710) is formed between the partition (600) and the inner shell wall of the casing (100), the partition (600) includes a fourth part (660), the fourth part (660) extends along the first axis (X) direction, and at least a portion of the liquid storage cavity (120) is formed between the fourth part (660) and a portion of the inner shell wall of the casing (100), and at least a portion of the accommodating cavity (610) is formed between the fourth part (660) and another portion of the inner shell wall of the casing (100).

15. The oral cleaning device according to claim 6, characterized in that: The partition (600) is formed with a communication hole (680) that connects the power cavity (110) and the liquid storage cavity (120).

16. The oral cleaning device according to claim 15, characterized in that The connecting member (400) has a third flow channel (420) connecting the liquid inlet end (310) of the pump mechanism (300) and the liquid storage cavity (120); the third flow channel (420) of the connecting member (400) is connected to the liquid storage cavity (120) via the connecting hole (680).

17. The oral cleaning device according to any one of claims 6 to 16, characterized in that: The partition (600) is sealedly connected to the inner shell wall of the casing (100); And / or, the partition (600) is snap-fitted and connected to the housing (100); And / or, the partition (600) is formed with a connecting hole (680) connecting the power cavity (110) and the liquid storage cavity (120); the connecting hole (680) is sealedly connected to the connecting member (400); And / or, the partition (600) and the connecting member (400) are detachably connected.

18. The oral cleaning device according to claim 1, characterized in that The pump mechanism (300) comprises a liquid inlet end (310), a liquid outlet end (320) and a power end (330), and the pump mechanism (300) is capable of pumping liquid from the liquid inlet end (310) into a pump chamber of the pump mechanism (300) and pumping liquid out from the liquid outlet end (320); wherein a liquid outlet cover portion (322) of the liquid outlet end (320) and a liquid inlet cover portion (312) of the liquid inlet end (310) are integrated into the connecting piece (400).

19. The oral cleaning device according to claim 18, characterized in that It also includes a mounting member (500), the mounting member (500) being connected to the inner shell wall of the housing (100), and the motor (200) and the power end (330) of the pump mechanism (300) being installed on the mounting member (500) at intervals; The valve portion (321) of the liquid outlet end (320) is integrated with the mounting member (500), and the end cover portion (322) of the liquid outlet end (320) is integrated with the connecting member (400); the power end (330), at least a portion of the connecting member (400), and at least a portion of the mounting member (500) are sequentially arranged along the liquid outlet direction of the liquid outlet end (320), and are connected by fasteners.

20. A cavity cleaner, characterized in that: The invention comprises a cleaning attachment (2000) and an oral cleaning device (1000) as described in any one of claims 1 to 19, wherein the cleaning attachment (2000) has a cavity (2200) and a flow outlet (2300) connected to the cavity (2200), an output shaft (210) of a motor (200) of the oral cleaning device (1000) is connected to the cleaning attachment (2000) and drives the cleaning attachment (2000) to perform displacement movement, and a first flow channel (211) of the output shaft (210) is connected to the cavity (2200) of the cleaning attachment (2000), and the pump mechanism (300) outputs water flow impact through the flow outlet (2300).

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