Liquid storage assembly and oral cleaner

Abstract

The present application discloses a liquid storage assembly and an oral cleaner. The liquid storage assembly comprises: a housing, having a first housing wall, wherein the first housing wall is provided with a communication hole penetrating through the first housing wall in a first direction, and at least part of an inner surface of the first housing wall defines a liquid storage cavity; and a limiting member, arranged on the inner side of the first housing wall and defining a ventilation flow channel, wherein the ventilation flow channel is in communication with the liquid storage cavity and the communication hole, at least part of the ventilation flow channel is arranged in a second direction, and the second direction intersects the first direction. The liquid storage assembly and the oral cleaner provided by the present application have the advantage of having a good ventilation effect.

Description

Liquid storage assembly and oral cleaner TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of oral appliances, and in particular, to a liquid storage assembly and an oral cleaner. BACKGROUND

[0002] With the increasing importance of oral care, oral cleaners have gradually become common oral care tools in families. Among them, oral cleaners with a water pick function, such as water pickers and flush-integrated cleaners, can pump out high-speed water columns with a certain pressure using a water pump and clean teeth and tooth gaps using the impact force of the high-speed water columns.

[0003] Related oral cleaners with a water pick function can include a housing, a water pump, a water tank, and a water pick head. The water pick head can be provided at one end of the housing and has a water pick channel for liquid flow. The water tank and the water pump are arranged in the inner cavity of the housing, and the water pump can pump the liquid in the water tank out through the water pick channel. In order to prevent the situation that water cannot be pumped out due to the formation of a vacuum in the inner cavity of the water tank when the water pump pumps water, the related oral cleaner balances the internal and external air pressures of the water tank by providing an air passage that communicates the inner cavity of the water tank with the outside.

[0004] However, the above-mentioned air passage is relatively long and has the disadvantage of not being conducive to gas flow.

[0005] SUMMARY

[0006] Embodiments of the present application aim to provide a liquid storage assembly and an oral cleaner, which can solve the problem of a long air passage that is not conducive to gas flow.

[0007] To achieve the above-mentioned purpose, one aspect of an embodiment of the present application provides a liquid storage assembly for a device with a pump mechanism, the liquid storage assembly comprising: a housing having a first shell wall, the first shell wall being provided with a communication hole penetrating the first shell wall in a first direction, and at least part of the inner surface of the first shell wall defining a liquid storage cavity; a limiting member arranged on the inner side of the first shell wall and defining an air passage flow channel; the air passage flow channel communicating the liquid storage cavity and the communication hole, and at least part of the air passage flow channel being arranged in a second direction intersecting the first direction.

[0008] Optionally, the limiting member comprises a first part and a second part connected in sequence; the first part covers the communication hole; and the space gap between the second part and the inner surface of the first shell wall forms the air passage flow channel.

[0009] Optionally, the first part and the inner surface of the first shell wall define a gas storage cavity that communicates with the communication hole and the air passage flow channel.

[0010] Optionally, a space gap between the second portion and the inner surface of the first shell wall in a radial direction along the gas flow direction is between 0.04 mm and 0.2 mm.

[0011] Optionally, the first shell wall is provided with a first fitting portion, the second portion is provided with a second fitting portion, the second fitting portion is in concave-convex fitting with the first fitting portion, and the second fitting portion and the first fitting portion define at least part of the air passage.

[0012] Optionally, the liquid storage assembly further comprises a sealing member; the defining member comprises a third portion connected to an end of the first portion away from the second portion, and a space gap between the third portion and the inner surface of the first shell wall is sealed by the sealing member.

[0013] Optionally, a space gap between the second portion and the inner surface of the first shell wall communicates with a top end of the liquid storage cavity.

[0014] Optionally, the defining member further comprises a fourth portion connected to the first portion or the second portion, and the fourth portion is arranged in a direction intersecting the inner surface of the first shell wall, and at least part of the inner surface of the first shell wall defines the liquid storage cavity.

[0015] The gas storage cavity is arranged side by side with at least part of the liquid storage cavity; or the gas storage cavity is located on one side of the liquid storage cavity in the second direction.

[0016] Optionally, the device with the pump mechanism comprises an internal component; the fourth portion is provided with a mounting recess, the mounting recess has an opening on a side away from the liquid storage cavity; the first portion is provided with a groove, the groove has a slot opening towards the communication hole; the defining member is configured to deform in cooperation with the internal component when the defining member is embedded in the mounting recess in the internal component, so that the surface of the first portion abuts against the inner surface of the first shell wall, and an inner cavity of the groove constitutes at least part of the gas storage cavity.

[0017] Optionally, the internal component is connected to the mounting recess in a clamping manner.

[0018] Optionally, the first shell wall is a side wall of the shell, and an outer surface of the first shell wall is provided with a plurality of protrusions, at least part of the number of protrusions surrounding an outer side of the communication hole.

[0019] Optionally, the liquid storage assembly further comprises a gas-permeable liquid-blocking membrane covering the communication hole.

[0020] To achieve the above object, one aspect of the embodiment of the present application provides an oral cavity cleaner, comprising a liquid spraying head, a pump mechanism and the liquid storage assembly as described above, the liquid spraying head is arranged at one end of a casing of the liquid storage assembly, and the liquid spraying head has a liquid passage communicating with the outside; the pump mechanism is arranged in an inner cavity of the casing, and the pump mechanism can pump the liquid in the liquid storage cavity into the liquid passage.

[0021] Optionally, the oral cavity cleaner further comprises a motor and a connecting member, the motor is arranged in the second direction away from the pump mechanism, and the motor has an output shaft connected with the liquid spraying head and enabling the liquid spraying head to move, the output shaft of the motor has a first passage communicating with the liquid passage;

[0022] The connecting member has a second passage communicating the liquid outlet of the pump mechanism and the first passage;

[0023] The liquid spraying head has a plurality of bristles.

[0024] In summary, the liquid storage assembly and the oral cavity cleaner provided by the embodiment of the present application can define the liquid storage cavity by the first casing wall, and the communication hole is also arranged on the first casing wall, so as to reduce the distance between the communication hole and the liquid storage cavity. In addition, if the communication hole is directly communicated with the liquid storage cavity, when the user shakes the device along the axial direction (the first direction) of the communication hole, the liquid in the liquid storage cavity is easy to splash out through the hole. In order to avoid this situation, in the embodiment of the present application, the air passage is arranged between the communication hole and the liquid storage cavity, and at least part of the air passage is arranged along the second direction intersecting the axial direction (the first direction) of the communication hole. In this way, when the user shakes the device along the axial direction of the communication hole, the liquid can be prevented from splashing out of the air hole. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Fig. 1 is a schematic view of an oral cavity cleaner provided by the embodiment of the present application;

[0027] Fig. 2 is a longitudinal sectional view of the oral cavity cleaner shown in Fig. 1;

[0028] Fig. 3 is a partial schematic view of the liquid storage assembly shown in Fig. 2;

[0029] Fig. 4 is a partial schematic view of the communication hole shown in Fig. 3;

[0030] Fig. 5 is a front view of the limiting member shown in Fig. 2;

[0031] Fig. 6 is a partial schematic view of another liquid storage assembly according to embodiments of the present application.

[0032] Reference Signs: 1000, liquid storage assembly; 100, housing; 110, first shell wall; 111, inner surface; 112, outer surface; 120, communication hole; 130, first mating part; 200, liquid storage cavity; 300, defining member; 310, first part; 320, second part; 330, third part; 340, fourth part; 350, second mating part; 360, mounting recess; 370, groove; 400, air passage; 500, air storage cavity; 600, sealing member; 700, protrusion; 800, gas permeable membrane; 2000, cleaning accessory; 2100, brush body; 2200, bristles; 2300, liquid inlet; 2400, liquid outlet; 2500, cavity; 3000, motor; 3100, motor body; 3200, output shaft; 4000, pump mechanism; 5000, connecting member; 5100, second flow passage; 6000, built-in assembly. DETAILED DESCRIPTION

[0033] Fig. 1 is a schematic view of an oral cleaning device according to embodiments of the present application, and Fig. 2 is a longitudinal sectional view of the oral cleaning device shown in Fig. 1. Referring to Figs. 1 and 2, the oral cleaning device according to embodiments of the present application can include an oral cleaning apparatus 1000 and a cleaning accessory 2000, wherein the cleaning accessory 2000 can be a liquid spraying head, a flushing integrated head, or the like, which is capable of cleaning the oral cavity. The flushing integrated head refers to a device having both a brush head and a liquid spraying head. For example, as shown in Fig. 2, the cleaning accessory 2000 can include a brush body 2100 and bristles 2200 connected to one end of the brush body 2100, wherein the brush body 2100 can have a liquid inlet 2300, a liquid outlet 2400, and a cavity 2500 communicated between the liquid inlet 2300 and the liquid outlet 2400, and the bristles 2200 can surround an outer periphery of the liquid outlet 2400. The oral cleaning apparatus 1000 can be fitted to the liquid inlet 2300, wherein when a user activates a brushing function, the oral cleaning apparatus 1000 can move the brush body 2100, thereby moving the bristles 2200, and when the user activates a flushing function, the oral cleaning apparatus 1000 can cause liquid to flow into the cavity 2500 through the liquid inlet 2300 and to flow out of the liquid outlet 2400.

[0034] With continued reference to FIG. 2, the oral cleaning device 1000 can include a liquid storage assembly 1000 and a power assembly. The liquid storage assembly 1000 can include a housing 100. The housing 100 can be shaped like an elongated cylinder for easy holding by a user. The cross-sectional shape of the housing 100 can be circular or non-circular (e.g., D-shaped, oval, polygonal, etc.). FIG. 3 is a partial schematic view of the liquid storage assembly shown in FIG. 2. With reference to FIGS. 2 and 3, the housing 100 can have a first housing wall 110 having a thickness in a first direction, and the first housing wall 110 can have an outer surface 112 and an inner surface 111 oppositely disposed in the first direction. At least a portion of the inner surface 111 of the first housing wall 110 can define a liquid storage cavity 200, i.e., at least a portion of the inner surface 111 of the first housing wall 110 can act as an inner cavity wall of the liquid storage cavity 200.

[0035] With continued reference to FIG. 2, the power assembly can be disposed in the inner cavity of the housing 100 and can implement a water jet function or a flush and spray integrated function of the oral cleaning device.

[0036] For example, when the cleaning accessory 2000 is a liquid spray head, the power assembly can be a pump mechanism 4000, and a liquid outlet of the pump mechanism 4000 can be directly connected to a liquid inlet of the cleaning accessory 2000. During water jetting, the pump mechanism 4000 can direct liquid in the liquid storage cavity 200 to be pumped into the inner cavity 2500 of the cleaning accessory 2000 and sprayed out of a liquid outlet 2400 of the cleaning accessory 2000.

[0037] Another example, when the cleaning accessory 2000 is a flushing integrated head, referring to FIG. 2, the power assembly can include a motor 3000 and a pump mechanism 4000. In order to maintain the shape requirement of the slender machine housing 100, the motor 3000 and the pump mechanism 4000 can be arranged along the length direction of the machine housing 100 in sequence. The motor 3000 can be closer to the top end of the machine housing 100 than the pump mechanism 4000, so that the output shaft 3200 of the motor 3000 can pass through the top end of the machine housing 100 and be connected with the cleaning accessory 2000 to drive the cleaning accessory 2000 to move, thereby realizing the tooth brushing function. The motor 3000 can be a rotating motor capable of rotating the cleaning accessory 2000, or the motor 3000 can be a vibrating motor (such as a sonic motor, etc.) capable of high-frequency oscillation of the cleaning accessory 2000. The motor 3000 can include a motor body 3100 and an output shaft 3200. The axis of the output shaft 3200 can coincide with the central axis of the machine housing 100 or be arranged in parallel and spaced apart. The output shaft 3200 can pass through the motor body 3100 along the axial direction. In addition, the output shaft 3200 can have a first end and a second end arranged in opposite directions along the axial direction. The first end of the output shaft 3200 can pass through the motor body 3100 and be connected with the cleaning accessory 2000 to drive the cleaning accessory 2000 to move. In addition, the output shaft 3200 can have a first flow channel 3300 passing through the output shaft 3200 along the axial direction. The second end of the output shaft 3200 can pass through the motor body 3100 and be connected with the liquid outlet end of the pump mechanism 4000 through the connecting member 5000, so that the second flow channel 5100 of the connecting member 5000 communicates the first flow channel 3300 of the output shaft 3200 with the liquid outlet end of the pump mechanism 4000. In this way, during the flushing, the pump mechanism 4000 can guide the liquid in the liquid storage cavity 200 (the arrow in FIG. 2 shows the flow path of the liquid) to pass through the second flow channel 5100 of the connecting member 5000, the first flow channel 3300 of the output shaft 3200 of the motor 3000, the inner cavity 2500 of the cleaning accessory 2000, and be sprayed out of the liquid outlet 2400 of the cleaning accessory 2000.

[0038] Referring to FIG. 3, as mentioned above, at least part of the inner surface 111 of the first shell wall 110 defines the liquid storage cavity 200. In order to ensure that the pump mechanism 4000 can suck the liquid in the liquid storage cavity 200, the first shell wall 110 can be provided with a communication hole 120 communicating the outside with the liquid storage cavity 200. In order to avoid the liquid flowing out of the communication hole 120 when the user lays the oral cavity cleaner horizontally or shakes the oral cavity cleaner, the liquid storage assembly 1000 provided in the embodiments of the present application can further include a limiting member 300, and the limiting member 300 and the first shell wall 110 form a ventilation flow channel 400 for ventilation and liquid blocking.

[0039] Specifically, the through hole 120 can penetrate the first shell wall 110 along a first direction, that is, the depth direction of the through hole 120 is the first direction, and the through hole 120 extends to the outer surface 112 of the first shell wall 110 at one end of the first direction and extends to the inner surface 111 of the first shell wall 110 at the other end of the first direction. In this way, the first shell wall 110 not only defines the liquid storage cavity 200, but also is provided with the through hole 120, so as to reduce the distance between the through hole 120 and the liquid storage cavity 200, thereby shortening the flow path of the gas, and facilitating the suction of the pump mechanism 4000.

[0040] In addition, the limiting member 300 can be arranged on the inner side of the first shell wall 110 and define the air flow channel 400. The inner side of the first shell wall 110 refers to one side of the inner surface 111 of the first shell wall 110, that is, the side of the first shell wall 110 facing the inner cavity of the casing 100. In addition, the air flow channel 400 communicates the liquid storage cavity 200 and the through hole 120, and at least part of the air flow channel 400 is arranged along a second direction. The second direction intersects the first direction.

[0041] It can be understood that if the through hole 120 is directly communicated with the liquid storage cavity 200, the liquid in the liquid storage cavity 200 is easy to splash out through the hole when the user shakes the device along the axial direction (the first direction) of the through hole 120. In order to avoid this situation, in the embodiment of the present application, the air flow channel 400 is arranged between the through hole 120 and the liquid storage cavity 200, and at least part of the air flow channel 400 is arranged along the second direction, which intersects the axial direction (the first direction) of the through hole 120. In this way, the liquid can be prevented from splashing out of the through hole when the user shakes the device along the axial direction of the through hole 120.

[0042] Optionally, the through hole 120 can be one or more. When there are multiple through holes 120, the multiple through holes 120 can be arranged around the first shell wall 110. The shape of the through hole 120 can be various, such as the cross-sectional shape of the through hole 120 can be circular, waist hole, rectangular, etc. The longitudinal cross-sectional shape of the through hole 120 can be rectangular, conical, etc.

[0043] Fig. 4 is a partial schematic view of the through hole 120 shown in Fig. 3. Referring to Figs. 3 and 4, optionally, the limiting member 300 can include a first part 310 and a second part 320 connected in sequence. The first part 310 can cover the through hole 120, and the space gap between the second part 320 and the inner surface 111 of the first shell wall 110 forms the air flow channel 400. In this way, the air flow channel 400 formed by the space gap has a small cross-sectional area and a relatively long length, which has the advantage of facilitating processing.

[0044] Further, the space gap between the second portion 320 and the inner surface 111 of the first shell wall 110 along the radial direction of the gas flow direction is between 0.04 mm and 0.2 mm, so as to balance the ventilation effect and the liquid blocking effect. The radial direction of the gas flow direction refers to the distance between the second portion 320 and the inner surface 111 of the first shell wall 110 (in the direction perpendicular to the gas flow direction).

[0045] Referring to FIG. 3 and FIG. 4, further, the first shell wall 110 can be provided with a first matching portion 130, and the second portion 320 is provided with a second matching portion 350, the second matching portion 350 and the first matching portion 130 are concave-convex matched, and the second matching portion 350 and the first matching portion 130 define at least part of the ventilation flow channel 400. For example, in FIG. 3 and FIG. 4, the first matching portion 130 is a groove, and the second matching portion 350 is a protrusion embedded in the groove; for another example, the first matching portion 130 is a protrusion, and the second matching portion 350 is a groove accommodating the protrusion. Further, the first matching portion 130 and the second matching portion 350 can be snap connected, so as to realize the assembly between the limiting member 300 and the first shell wall 110 while forming the ventilation flow channel 400.

[0046] Optionally, the space gap between the second portion 320 and the inner surface 111 of the first shell wall 110 can be communicated with the top end, the middle portion, etc. of the liquid storage cavity 200. FIG. 3 and FIG. 4 illustrate the case that the space gap is communicated with the top end of the liquid storage cavity 200.

[0047] Optionally, the liquid storage assembly 1000 provided by the embodiment of the present application can further include a ventilation and liquid blocking breathable film 800, which can cover the communication hole 120, so as to further improve the liquid blocking effect. The breathable film 800 can be arranged on one side of the ventilation hole along the first direction, or the breathable film 800 can be embedded in the ventilation hole.

[0048] The first portion 310 can have the following possible arrangement: for example, the first portion 310 can be slightly larger than the communication hole 120, and there is no gas flow channel between the first portion 310 and the first shell wall 110, and the gas can directly enter the ventilation flow channel 400 formed by the second portion 320 and the first shell wall 110 through the ventilation hole.

[0049] Another example, referring to FIG. 3-5, the first portion 310 and the inner surface 111 of the first shell wall 110 define a gas storage cavity 500 in communication with the communication hole 120 and the ventilation flow channel 400. In this way, the flow of gas is facilitated. Further, the first portion 310 can be provided with a recess 370, which can have a slot facing the communication hole 120, and the inner cavity of the recess 370 constitutes at least part of the gas storage cavity 500. In this way, the inner cavity of the recess 370 is used to form the gas storage cavity 500, so as to improve the ventilation effect.

[0050] Optionally, the liquid storage assembly 1000 provided by the embodiments of the present application can further comprise a sealing member 600. The defining member 300 can further comprise a third portion 330, which can be connected to the first portion 310 at an end away from the second portion 320, and the third portion 330 and the inner surface 111 of the first shell wall 110 can be sealed by the sealing member 600. In this way, the liquid or gas can be prevented from entering the upper side of the liquid storage cavity 200, so as to avoid contaminating the power assembly arranged above the liquid storage cavity 200. In addition, the sealing member 600 can be made of a sealing material with elasticity, such as rubber.

[0051] Further, the defining member 300 can further comprise a fourth portion 340, which can be connected to the first portion 310 or the second portion 320, and the fourth portion 340 can be arranged in a direction intersecting the inner surface 111 of the first shell wall 110. In addition, the fourth portion 340 and at least part of the inner surface 111 of the first shell wall 110 can define the liquid storage cavity 200. The gas storage cavity 500 and at least part of the liquid storage cavity 200 can be arranged side by side as shown in FIG. 3 and FIG. 4; or, the gas storage cavity 500 can be located on one side of the liquid storage cavity 200 in the second direction as shown in FIG. 6.

[0052] Optionally, the oral cleaner can further comprise an internal component 6000 (e.g. a battery). The fourth portion 340 can be provided with a mounting recess 360 having an opening on a side facing away from the liquid storage cavity 200. The first portion 310 is provided with a groove 370 having a slot facing the communication hole 120. The limiting member 300 is configured to deform in cooperation with the internal component 6000 when the internal component 6000 is embedded in the mounting recess 360, so that the surface of the first portion 310 abuts against the inner surface 111 of the first shell wall 110, and the inner cavity of the groove 370 forms at least part of the gas storage cavity 500. In this way, the groove 370 is provided to form the gas storage cavity 500, facilitating the circulation of gas. In addition, since the internal component 6000 is placed in the mounting recess 360, the limiting member 300 deforms outwardly to make the surface of the limiting member 300 abut against the inner surface 111 of the first shell wall 110, so as to form a uniform width of the gas storage cavity 500 (i.e. the depth of the groove 370) and the width of the air flow passage 400, thereby improving the yield.

[0053] Further, the internal component 6000 can be snap-connected with the mounting recess 360, so as to facilitate the disassembly of the internal component 6000.

[0054] Referring to FIG. 1, optionally, the first shell wall 110 can be a side wall of the casing 100, and the outer surface 112 of the first shell wall 110 can be provided with a plurality of protrusions 700, at least part of the number of protrusions 700 surrounding the outside of the communication hole 120. In this way, the plurality of protrusions 700 are provided so that the user holds the casing 100, and the air vent is not blocked, facilitating the circulation of air.

Claims

1. A reservoir assembly for use in a device having a pumping mechanism, characterized by, The liquid storage assembly comprises: a housing having a first wall provided with a through hole penetrating the first wall in a first direction, and at least a part of the inner surface of the first wall defining a liquid storage cavity; a defining member arranged on the inner side of the first wall and defining a ventilation flow channel; the ventilation flow channel communicates the liquid storage cavity with the through hole, and at least a part of the ventilation flow channel is arranged in a second direction intersecting the first direction.

2. The reservoir assembly of claim 1, wherein, The defining member comprises a first part and a second part connected in sequence; the first part covers the through hole; a space gap between the second part and the inner surface of the first wall forms the ventilation flow channel.

3. The reservoir assembly of claim 2, wherein, The first part and the inner surface of the first wall define a gas storage cavity communicating with the through hole and the ventilation flow channel.

4. The reservoir assembly of claim 2, wherein, In the radial direction of the gas flow direction, the space gap between the second part and the inner surface of the first wall is between 0.04 mm and 0.2 mm.

5. The reservoir assembly of claim 2, wherein, The first wall is provided with a first matching part, the second part is provided with a second matching part, the second matching part and the first matching part are concave-convex matched, and the second matching part and the first matching part define at least part of the ventilation flow channel.

6. The reservoir assembly of any one of claims 2-5, wherein, Further comprising a sealing member; The defining member comprises a third part connected to one end of the first part away from the second part, and the third part and the inner surface of the first wall are sealed by the sealing member.

7. The reservoir assembly of any one of claims 2-5, wherein, The space gap between the second part and the inner surface of the first wall communicates with the top end of the liquid storage cavity.

8. The reservoir assembly of claim 7, wherein, The defining member further comprises a fourth part connected to the first part or the second part, and the fourth part is arranged in a direction intersecting the inner surface of the first wall, and the fourth part and at least a part of the inner surface of the first wall define the liquid storage cavity; The gas storage cavity is arranged side by side with at least a part of the liquid storage cavity; or the gas storage cavity is located on one side of the liquid storage cavity in the second direction.

9. The reservoir assembly of claim 8, wherein, The device with a pump mechanism comprises an internal component; The fourth part is provided with a mounting recess, and the mounting recess has an opening on the side away from the liquid storage cavity; The first part is provided with a groove having a slot facing the through hole; The defining member is configured to deform in cooperation with the internal component when the internal component is embedded in the mounting recess, so that the surface of the first part abuts against the inner surface of the first wall, and the inner cavity of the groove constitutes at least a part of the gas storage cavity.

10. The reservoir assembly of claim 9, wherein, The internal component is connected with the mounting recess in a clamping manner.

11. The reservoir assembly of any one of claims 1-5, wherein, The first wall is a side wall of the housing, and the outer surface of the first wall is provided with a plurality of protrusions, at least a part of the number of protrusions surrounding the outside of the through hole.

12. The reservoir assembly of any one of claims 1-5, wherein, Further comprising a gas-permeable liquid-blocking membrane covering the through hole.

13. An oral cleaner characterized by, The liquid spraying device comprises a liquid spraying head, a pump mechanism and a liquid storage assembly as claimed in any one of claims 1-12, the liquid spraying head is arranged at one end of a casing of the liquid storage assembly, and the liquid spraying head has a liquid passage communicating with the outside; the pump mechanism is arranged in an inner cavity of the casing, and the pump mechanism is capable of pumping liquid in a liquid storage cavity into the liquid passage.

14. The oral cleaner of claim 13, wherein, Further comprising a motor and a connecting member, the motor is arranged in the second direction away from the pump mechanism, and the motor has an output shaft connected with the liquid spraying head and capable of driving the liquid spraying head, the output shaft of the motor has a first passage communicating with the liquid passage; The connecting member has a second passage communicating the liquid outlet of the pump mechanism and the first passage; The liquid spraying head has a plurality of bristles.

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