Liquid pump of oral care device and control method thereof

Abstract

The embodiment of the invention discloses a liquid pump of an oral care device and a control method thereof, the liquid pump comprises a power assembly, a transmission assembly and a pump head assembly, and the power assembly is connected with the pump head assembly through the transmission assembly to drive the pump head assembly to suck and pump liquid; wherein in a single movement period of the liquid pump, the liquid pump comprises a liquid suction stroke and a liquid pumping stroke, and the duration of the liquid suction stroke is longer than that of the liquid pumping stroke, so that the purpose of saving water can be achieved on the premise of ensuring a better cleaning effect on the oral cavity of a user.

Description

Technical Field

[0001] The present application relates to the technical field of oral cleaning, and in particular to a liquid pump of an oral care device and a control method thereof. Background Art

[0002] With improved living standards, people's awareness of oral care has gradually increased, and a wider variety of oral cleaning tools are now available on the market. Among them, oral irrigators, as an alternative to traditional dental floss, have become a must-have small appliance in households. Their basic working principle is that a pump draws water from a reservoir and sprays it through a nozzle, releasing high-pressure pulses of water hundreds or even thousands of times per minute. This pulses cleans food debris and plaque from between teeth, massages the gums, and improves the oral environment.

[0003] However, due to the limited capacity of the liquid storage tank, users need to add water frequently when flushing their teeth. If the capacity of the liquid storage tank is increased, the volume of the liquid storage tank will increase. A large liquid storage tank is inconvenient for users to hold. At the same time, a large liquid storage tank is heavy, which increases the difficulty of use for users. Therefore, how to save water without affecting the cleaning effect is particularly important. Summary of the Invention

[0004] The embodiments of the present application provide a liquid pump for an oral care device and a control method thereof, aiming to achieve the purpose of saving water while ensuring a good cleaning effect on the user's oral cavity.

[0005] An embodiment of the present application provides a liquid pump for an oral care device, which includes a power assembly, a transmission assembly, and a pump head assembly. The power assembly is connected to the pump head assembly through the transmission assembly to drive the pump head assembly to suck and pump liquid; wherein, within a single motion cycle of the liquid pump, the liquid pump includes a suction stroke and a pumping stroke, and the duration of the suction stroke is greater than the duration of the pumping stroke.

[0006] Based on the above embodiment, since the duration of the liquid suction stroke within a single motion cycle is longer, the liquid suction stroke is slower, which can reduce the amount of liquid sucked by the liquid pump each time, reducing the waste caused by excess liquid that is insufficient to clean the user's mouth. This can minimize liquid waste and improve liquid utilization, thereby reducing the volume of the liquid storage tank in the oral care device, reducing the space occupied by the liquid storage tank in the oral care device, and reducing the overall volume of the oral care device. In addition, since the duration of the pumping stroke is shorter, the pumping stroke is faster, which can generate greater pumping energy and stronger impact force, and can more effectively flush food residues, bacteria, etc. in difficult-to-clean areas in the oral cavity, such as the gaps between teeth and the gingival sulcus, to ensure a better cleaning effect on the user's mouth. In this way, it can ensure that the purpose of water saving is achieved while ensuring a better cleaning effect on the user's mouth.

[0007] In some embodiments, the first parameter of the power component controlled on the suction stroke is smaller than the first parameter of the power component on the pumping stroke, and the first parameter includes at least one of power, speed, and torque.

[0008] Based on the above embodiment, by controlling the first parameter of the power component on the suction stroke to be smaller than the first parameter of the power component on the pumping stroke, the duration of the suction stroke can be greater than the duration of the pumping stroke within a single movement cycle of the liquid pump, thereby ensuring that the purpose of saving water is achieved while having a better cleaning effect on the user's oral cavity.

[0009] In some embodiments, the liquid pump includes a position sensor, which is used to detect the movement position of at least one of the power component, the transmission component and the pump head component to control the first parameter of the power component at a position corresponding to the pumping stroke and a position corresponding to the suction stroke.

[0010] Based on the above embodiment, the position sensor detects the movement position of the power assembly. During the operation of the liquid pump, when the position sensor detects that the movement position of the power assembly corresponds to the position of the pump stroke, the position sensor can send a pump signal to the control, and the main control board can control the first parameter of the power assembly based on the pump signal to increase, so that at least one of the power, speed or torque of the power assembly increases, ensuring that the duration of the pump stroke is shorter, and then in the pump stroke, the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity; and when the position sensor detects that the movement position of the power assembly corresponds to the position of the suction stroke, the position sensor can send a suction signal to the control, and the main control board can control the first parameter of the power assembly based on the suction signal to decrease, so that at least one of the power, speed or torque of the power assembly decreases, ensuring that the duration of the suction stroke is longer, which can effectively slow down the suction speed and reduce the amount of liquid sucked by the liquid pump, thereby achieving the purpose of water saving. In other embodiments, the position sensor can also detect the movement position of the transmission assembly and the pump head assembly, and then adjust the first parameter of the power assembly through the main control board to achieve the purpose of water saving while having a better cleaning effect on the user's oral cavity.

[0011] In addition, since the position sensor can monitor the movement status of the power component, transmission component and pump head component in real time, the main control board can dynamically adjust the first parameter of the power component according to different stroke positions, ensuring that the liquid pump can be in a good working condition throughout the entire movement cycle. This not only improves the working efficiency of the liquid pump, but also further optimizes the overall performance of the oral care device, bringing users a more stable, efficient and water-saving oral care experience.

[0012] In some embodiments, within a single motion cycle of the liquid pump, the suction speed of the suction stroke is lower than the pumping speed of the pumping stroke, and / or the suction pressure of the suction stroke is lower than the pumping pressure of the pumping stroke.

[0013] In some embodiments, within a single motion cycle of the liquid pump, the motion amplitude of the power component corresponding to the liquid suction stroke is greater than the motion amplitude of the power component corresponding to the liquid pumping stroke.

[0014] In some embodiments, the transmission assembly includes a first transmission member and a second transmission member, the first transmission member is connected to the power assembly, and the second transmission member is connected to the pump head assembly, and a pump-liquid matching section and a liquid suction matching section are formed between the first transmission member and the second transmission member. When the liquid pump is in the pumping stroke, the first transmission member and the second transmission member match in the pump-liquid matching section, and when the liquid pump is in the liquid suction stroke, the first transmission member and the second transmission member match in the liquid suction matching section; wherein, the movement amplitude of the power assembly corresponding to the movement of the pumping member in the pumping matching section is smaller than the movement amplitude of the power assembly corresponding to the movement of the pumping member in the liquid suction matching section.

[0015] Based on the above embodiment, when the liquid pump is in the pumping stroke, the first transmission member and the second transmission member cooperate in the pumping coordination section, so that the power assembly can drive the pump head assembly through the first transmission member and the second transmission member to perform the pumping stroke, thereby pumping out the liquid, thereby cleaning the user's oral cavity. When the liquid pump is in the suction stroke, the first transmission member and the second transmission member cooperate in the suction coordination section, so that the power assembly can drive the pump head assembly through the first transmission member and the second transmission member to perform the suction stroke, thereby sucking out the liquid in the liquid storage tank, so as to pump out the liquid during the pumping stroke to clean the user's oral cavity, and the movement amplitude of the power assembly corresponding to the movement of the first transmission member and the second transmission member in the pumping coordination section is smaller than the movement amplitude of the power assembly corresponding to the movement of the first transmission member and the second transmission member in the suction coordination section, thereby making the duration of the power assembly in the suction stroke longer than the duration of the pumping stroke, thereby ensuring that the user's oral cavity has a good cleaning effect while achieving the purpose of water saving.

[0016] In some embodiments, the power assembly outputs a uniform motion.

[0017] In some embodiments, an inclined plane is formed between the first transmission member and the second transmission member, and the slope of the pumping section is greater than the slope of the suction section.

[0018] Based on the above embodiment, the slope of the pumping section is greater than the slope of the aspiration section, which enables the transmission speed of the first transmission member and the second transmission member in the pumping section to be greater than the transmission speed in the aspiration section. Consequently, during the pumping stroke, liquid can be ejected at a higher pressure and speed, thereby enhancing the cleaning effect on the user's oral cavity and reducing the aspiration speed during the aspiration stroke to achieve water conservation. In other embodiments, the length of the pumping section is less than the length of the aspiration section, which can also ensure a better cleaning effect on the user's oral cavity while achieving the purpose of water conservation.

[0019] In some embodiments, one of the first transmission member and the second transmission member is provided with a sloped annular table, and the other is provided with a matching portion, the annular table forms a pumping liquid section and a suction liquid section, the matching portion and the pumping liquid section form a pumping liquid matching section, and the matching portion and the suction liquid section form a suction liquid matching section.

[0020] In some embodiments, a single motion cycle of the liquid pump includes more suction strokes than pumping strokes.

[0021] Based on the above embodiment, a single movement cycle of the liquid pump includes more suction strokes than pumping strokes, which can ensure that the purpose of saving water is achieved while having a good cleaning effect on the user's oral cavity.

[0022] In some embodiments, a single motion cycle of the liquid pump includes multiple suction strokes and one pumping stroke.

[0023] Based on the above embodiment, a single movement cycle of the liquid pump includes multiple suction strokes and one pumping stroke, so that within a single movement cycle, the liquid pump can perform multiple suction strokes and then one pumping stroke, so that within a single movement cycle of the liquid pump, the total pumping time is greater than the total pumping time, which can ensure that the purpose of saving water is achieved while having a good cleaning effect on the user's oral cavity.

[0024] In some embodiments, the pump head assembly includes a liquid suction part and a liquid pumping part, the transmission assembly includes a third transmission part and a fourth transmission part, the power assembly drives the liquid pumping part to move through the third transmission part, and the power assembly drives the liquid suction part to move through the fourth transmission part, and the transmission ratio of the third transmission part is greater than the transmission ratio of the fourth transmission part.

[0025] Based on the above embodiment, the transmission ratio of the third transmission member is greater than the transmission ratio of the fourth transmission member, so that the rotational speed of the fourth transmission member is greater than the rotational speed of the third transmission member, so that within a single movement cycle, the liquid pump can perform multiple suction strokes and then one pumping stroke, so that within a single movement cycle of the liquid pump, the total pumping time is greater than the total pumping time, which can ensure that the purpose of saving water is achieved while having a good cleaning effect on the user's oral cavity.

[0026] In some embodiments, the liquid pump also includes an energy storage stroke arranged between the liquid suction stroke and the liquid pumping stroke; when the liquid pump is in the energy storage stroke, at least one of the power component, the transmission component and the pump head component is in a separated state, so that the pump head component is almost not linked to movement when the power component is running.

[0027] Based on the above embodiment, since the liquid pump is in the energy storage stroke, the power component hardly drives the pump head component to move during operation, so that the power component can drive the transmission component to accelerate within the energy storage stroke, so that at the beginning of the pumping stroke, the transmission component can drive the pump head assembly to move at a faster speed, and then in the pumping stroke, the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity.

[0028] In addition, an energy storage stroke is set between the suction stroke and the pump stroke, which can reduce the proportion of the suction stroke duration in a single motion cycle, thereby further shortening the suction stroke duration and achieving the purpose of water saving.

[0029] In some embodiments, the transmission assembly includes an active member and a driven member, the active member is connected to the power assembly, and the driven member is connected to the pump head assembly; when the transmission assembly is in the pumping stroke, the active member and the driven member are in a mating state; when the transmission assembly is in the energy storage stroke, the active member and the driven member are in a separated state.

[0030] Based on the above embodiment, when the transmission assembly is in the pumping stroke, the active member and the driven member are in a coordinated state, so that the power assembly can drive the pump head assembly to move through the active member and the driven member, thereby pumping out the liquid and cleaning the user's oral cavity. When the transmission assembly is in the energy storage stroke, the active member and the driven member are in a separated state, so that the power assembly can drive the active member to move without driving the driven member to move, and thus the pump head assembly is not linked, so as to reduce the resistance to the movement of the active member, and thus the power assembly can drive the active member to accelerate the movement, and store energy in the active member, so that at the beginning of the pumping stroke, the active member can drive the driven member to move at a faster speed, so as to drive the pump head assembly to move quickly, and then during the pumping stroke, the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity.

[0031] In some embodiments, the power assembly includes a power member and a clutch member, and the power member is connected to the transmission assembly through the clutch member; when the power assembly is in the pumping stroke, the clutch member is in the engaged state; when the power assembly is in the energy storage stroke, the clutch member is in the disengaged state.

[0032] Based on the above embodiment, when the power component is in the pumping stroke, the clutch is in a mating state, and the power component can drive the transmission component to move through the clutch, so as to drive the pump head assembly to move through the transmission component, thereby pumping out the liquid; when the power component is in the energy storage stroke, the clutch is in a disengaged state, and the power component cannot drive the transmission component to move through the clutch, so that the power component alone drives the clutch to accelerate the movement, thereby storing energy for the clutch, so that at the beginning of the pumping stroke, the clutch is switched to the mating state, and the clutch drives the transmission component to move at a faster speed, so as to drive the pump head assembly to move quickly, and then in the pumping stroke, the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity.

[0033] In some embodiments, when the liquid pump is in the suction stroke, the power assembly, the transmission assembly and the pump head assembly are in a coordinated state, so as to link the movement of the pump head assembly when the power assembly is running; or, the liquid pump also includes a reset component that cooperates with the pump head assembly, and when the liquid pump is in the suction stroke, the power assembly, the transmission assembly and the pump head assembly are in a separated state, and the pump head assembly moves under the action of the reset component.

[0034] Based on the above embodiment, when the liquid pump is in the suction stroke, the power assembly, transmission assembly, and pump head assembly are in at least one of the aforementioned separated states, and the pump head assembly is able to move under the action of the reset member, thereby also being able to draw liquid from the liquid reservoir. It is understood that the reset member can be a spring, which is compressed when the liquid pump is in the pumping stroke; when the liquid pump is in the suction stroke, the spring recovers its elastic deformation to drive the pump head assembly to move and draw liquid from the liquid reservoir.

[0035] An embodiment of the present application also provides a liquid pump for an oral care device, which includes a power assembly, a transmission assembly, and a pump head assembly. The power assembly is connected to the pump head assembly through the transmission assembly to drive the pump head assembly to absorb and pump liquid. Within a single movement cycle of the liquid pump, the liquid pump includes a suction stroke, an interval stroke, and a pumping stroke. Within the interval stroke, the power assembly stops running or the power assembly and the transmission assembly do not drive the pump head assembly to move.

[0036] Based on the above embodiments, within the interval stroke, the power component stops running or the power component and the transmission component do not drive the pump head component to move, and an interval stroke is added between the suction stroke and the pumping stroke. This can reduce the proportion of the suction stroke duration in a single movement cycle, thereby further shortening the suction stroke duration and achieving the purpose of saving water.

[0037] In some embodiments, within a single movement cycle of the liquid pump, the power component is sequentially powered on for a first period and powered off for a second period; the second period overlaps with the interval stroke, or at least part of the second period overlaps with the pumping stroke and / or the suction stroke.

[0038] In an embodiment of the present application, within a single movement cycle of the liquid pump, the main control board controls the power component to be powered on for a first period of time, and then powered off for a second period of time, and makes the second period of time after the pumping stroke, so that the suction stroke is performed within the second period of power outage, so that the average speed of the power component within the suction stroke is slower, and thus the suction speed can be slower, which can reduce the amount of suction and achieve the purpose of saving water.

[0039] In other embodiments, the second duration can be set before the liquid aspiration stroke, so that during the second power-off duration, the rotation speed of the power assembly gradually decreases, so that the power assembly needs to accelerate from a lower speed during the liquid aspiration stroke, so that the average rotation speed of the power assembly during the liquid aspiration stroke is slower, thereby slowing down the liquid aspiration speed, reducing the amount of liquid aspirated, and achieving the purpose of water conservation. Alternatively, the second duration can be set between the liquid pumping stroke and the liquid aspiration stroke, which can also reduce the amount of liquid aspirated, achieving the purpose of water conservation.

[0040] In other embodiments, at least part of the second time duration can be overlapped with the pumping stroke, or at least part of the second time duration can be overlapped with the suction stroke, or the second time duration can be at least partially overlapped with the pumping stroke and the suction stroke, thereby reducing the amount of suction and achieving the purpose of saving water.

[0041] The embodiment of the present application further provides a method for controlling a liquid pump of an oral care device, wherein the liquid pump comprises:

[0042] Powertrain and transmission components; and,

[0043] The power assembly is connected to the pump head assembly through the transmission assembly, so that the pump head assembly has a liquid suction stroke and a liquid pumping stroke;

[0044] Control methods include:

[0045] Controlling the power component to be powered on for a first time and then powered off for a second time;

[0046] The second duration is located after the pumping stroke and / or before the suction stroke, or at least a portion of the second duration overlaps with the pumping stroke and / or the suction stroke.

[0047] In some embodiments, the step of controlling the power component to be powered on for a first period of time and then powered off for a second period of time includes:

[0048] Controlling the power assembly to be energized for a first duration so that the pump head assembly performs at least a portion of a pumping stroke at the end of the first duration;

[0049] Controlling the power assembly to be powered off for a second time period so that the pump head assembly performs at least a portion of the liquid suction stroke within the second time period, or,

[0050] The power component is controlled to be powered off for a second period of time, so that the pump head component performs the entire suction stroke in the initial section of the first period of time.

[0051] In some embodiments, the step of controlling the power assembly to be energized for a first duration so that the pump head assembly performs at least a partial pumping stroke at the end of the first duration includes:

[0052] Controlling the power assembly to be energized for a first duration so that the pump head assembly performs a full pumping stroke at the end of the first duration; or,

[0053] The power component is controlled to be energized for a first time period, so that the pump head component starts a pumping stroke at the end of the first time period and ends the pumping stroke at the beginning of a second time period.

[0054] In some embodiments, the step of controlling the power assembly to be powered off for a second period of time so that the pump head assembly performs at least a portion of the aspiration stroke within the second period of time includes:

[0055] Controlling the power assembly to be powered off for a second time period so that the pump head assembly performs a full aspiration stroke within the second time period; or,

[0056] The power component is controlled to be powered off for a second time period, so that the pump head component starts the liquid suction stroke at the end of the second time period and ends the liquid suction stroke at the beginning of the first time period.

[0057] In some embodiments, the step of controlling the power component to be powered on for a first period of time and then powered off for a second period of time includes:

[0058] Controlling the power assembly to be energized for a first duration so that the pump head assembly performs at least a portion of a pumping stroke within the first duration;

[0059] Control the second duration of power outage of the power component;

[0060] The power component is controlled to be energized for a first time period so that the pump head component performs at least a portion of the liquid suction stroke within the first time period.

[0061] In some embodiments, the two first durations have opposite energizing directions.

[0062] In some embodiments, the two first durations include a first duration of forward power-on and a first duration of reverse power-on, and both the first duration of forward power-on and the first duration of reverse power-on are followed by a second duration of power-off.

[0063] The pump head assembly performs a full pumping stroke at the end of the first duration of forward energization and performs a full aspiration stroke at the beginning of the first duration of reverse energization, or,

[0064] The pump head assembly starts the pumping stroke at the end of the first duration of forward power supply, ends the pumping stroke within the second duration, and performs the suction stroke within the first duration of reverse power supply, or,

[0065] The pump head assembly starts the pumping stroke at the end of the first time period of forward power supply and ends the pumping stroke within the second time period; the pump head assembly starts the suction stroke at the initial section of the first time period of reverse power supply and ends the suction stroke within the second time period.

[0066] The embodiment of the present application further provides a method for controlling a liquid pump of an oral care device, wherein the liquid pump comprises:

[0067] Powertrain and transmission components; and,

[0068] The power assembly is connected to the pump head assembly through the transmission assembly so that the pump head assembly has a liquid suction stroke and a liquid pumping stroke;

[0069] Control methods include:

[0070] The control power component drives the pump head component to alternately suck and pump liquid, and the first parameter of the control power component on the sucking stroke is smaller than the first parameter of the power component on the pumping stroke, the first parameter including at least one of power, speed, and torque.

[0071] The liquid pump of the oral care device according to the present application has a longer suction stroke duration within a single motion cycle, resulting in a slower suction stroke. This reduces the amount of liquid drawn by the pump each time, thereby reducing the waste caused by excess liquid not being sufficient to clean the user's mouth. This minimizes liquid waste and improves liquid utilization, thereby reducing the volume of the liquid storage tank in the oral care device, thereby reducing the space occupied by the liquid storage tank in the oral care device and reducing the overall volume of the oral care device. Furthermore, since the pump stroke duration is shorter, the pump stroke is faster, thereby generating greater pump energy and a stronger impact force. This allows for more effective flushing of food debris, bacteria, and the like in difficult-to-clean areas of the oral cavity, such as the gaps between teeth and the gingival sulcus, thereby ensuring a better cleaning effect on the user's oral cavity. Thus, the purpose of water conservation can be achieved while ensuring a better cleaning effect on the user's oral cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0073] Figure 1 This is a schematic structural diagram of an oral care device in one embodiment of the present application;

[0074] Figure 2 This is a schematic diagram of the internal structure of an oral care device in one embodiment of the present application;

[0075] Figure 3 This is a structural diagram of a liquid pump in one embodiment of the present application;

[0076] Figure 4 This is a structural diagram of a liquid pump in another embodiment of the present application;

[0077] Figure 5 This is a structural diagram of a liquid pump in another embodiment of the present application;

[0078] Figure 6 This is a structural diagram of a liquid pump in another embodiment of the present application;

[0079] Figure 7 For the Figure 6 A schematic diagram of a cross-sectional structure along the AA line;

[0080] Figure 8 This is a schematic diagram of the assembly structure of the first transmission member and the second transmission member in one embodiment of the present application;

[0081] Figure 9 This is a schematic diagram of the assembly structure of the first transmission member and the second transmission member in another embodiment of the present application;

[0082] Figure 10 This is a schematic diagram of the internal structure of a liquid pump in another embodiment of the present application;

[0083] Figure 11 This is a schematic diagram of the internal structure of a liquid pump in another embodiment of the present application;

[0084] Figure 12 This is a schematic diagram of the internal structure of a liquid pump in another embodiment of the present application;

[0085] Figure 13 This is a flow chart of a liquid pump control method for an oral care device in one embodiment of the present application;

[0086] Figure 14 This is a flow chart of a liquid pump control method for an oral care device in another embodiment of the present application;

[0087] Figure 15 This is a flow chart of a liquid pump control method for an oral care device in another embodiment of the present application;

[0088] Figure 16 This is a flow chart of a liquid pump control method for an oral care device in another embodiment of the present application;

[0089] Figure 17 This is a flow chart of a liquid pump control method for an oral care device in another embodiment of the present application;

[0090] Figure 18 This is a flow chart of a liquid pump control method for an oral care device in another embodiment of the present application.

[0091] Description of reference numerals: 1, oral care device; 11, housing; 12, liquid storage tank; 13, nozzle;

[0092] 2. Liquid pump; 21. Power assembly; 22. Transmission assembly; 23. Pump head assembly;

[0093] 2A, liquid pump; 21A, power assembly; 22A, transmission assembly; 221A, first transmission member; 222A, second transmission member; 22A1, pump-liquid matching section; 22A2, liquid suction matching section; 23A, pump head assembly;

[0094] 2B, liquid pump; 21B, power assembly; 22B, transmission assembly; 221B, first transmission member; 222B, second transmission member; 22B1, pump-liquid matching section; 22B2, liquid suction matching section; 22B3, annular table; 22B4, matching portion; 23B, pump head assembly;

[0095] 2C, liquid pump; 21C, power assembly; 211C, power member; 212C, clutch member; 22C, transmission assembly; 221C, first transmission member; 222C, second transmission member; 22C1, pump-liquid matching section; 22C2, liquid suction matching section; 23C, pump head assembly; 24C, reset member;

[0096] 2D, liquid pump; 21D, power assembly; 22D, transmission assembly; 221D, first transmission member; 222D, second transmission member; 23D, pump head assembly; 24D, reset member;

[0097] 2E, liquid pump; 21E, power assembly; 22E, transmission assembly; 221E, first transmission member; 222E, second transmission member; 223E, third transmission member; 224E, fourth transmission member;

[0098] 23E, pump head assembly; 231E, liquid suction part; 232E, liquid pump part. DETAILED DESCRIPTION

[0099] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0100] Please refer to Figure 1 and Figure 2 The embodiment of the present application provides an oral care device 1 including a housing 11, a liquid storage tank 12, a liquid pump 2, a nozzle 13, a main control board (not shown in the figure) and a battery (not shown in the figure).

[0101] The housing 11 is provided outside the liquid pump 2, the liquid reservoir 12, and the main control board, and is used to protect the liquid pump 2, the liquid reservoir 12, and the main control board, so as to reduce the probability of external impurities contacting the liquid pump 2, the liquid reservoir 12, the main control board, and the battery, thereby reducing the probability of damage to the liquid pump 2, the liquid reservoir 12, the main control board, and the battery, and enabling the liquid pump 2, the liquid reservoir 12, the main control board, and the battery to have a longer service life, thereby enabling the oral care device 1 to have a longer service life. Exemplarily, the material of the housing 11 can be metal or plastic. In an embodiment of the present application, the material of the housing 11 can be plastic, and the housing 11 can be integrally formed by an injection molding process to reduce the assembly gap of the housing 11, thereby preventing external impurities from entering the housing 11 through the assembly gap of the housing 11, thereby reducing the probability of impurities contacting the liquid pump 2, the liquid reservoir 12, the main control board, and the battery, thereby reducing the probability of damage to the liquid pump 2, the liquid reservoir 12, the main control board, and the battery.

[0102] The liquid storage tank 12 is disposed in the housing 11 and is used to store liquid. The liquid may include at least one of water, cleaning liquid and care liquid.

[0103] The liquid pump 2 is arranged in the shell 11, and the liquid suction port of the liquid pump 2 is connected to the liquid storage tank 12, which is used to suck the liquid in the liquid storage tank 12. The liquid pump port of the liquid pump 2 is connected to the nozzle 13, which is used to pump the liquid sucked from the liquid storage tank 12 out through the nozzle 13, thereby cleaning the user's mouth.

[0104] The nozzle 13 is connected to the liquid pump port of the liquid pump 2 and can be connected to the housing 11 to improve the connection stability between the nozzle 13 and the liquid pump port of the liquid pump 2. It is understood that the nozzle 13 is detachably connected to the housing 11. When the user no longer needs to use the oral care device 1, the nozzle 13 can be removed to reduce the length of the oral care device 1 and facilitate storage of the oral care device 1. This also makes it easier for the user to replace the nozzle 13 to adapt to different user scenarios.

[0105] The main control board and battery are both housed within the housing 11 and are electrically connected to the battery, providing power to the main control board. The main control board includes a control module, which is electrically connected to the liquid pump 2 and controls the movement of the liquid pump 2. It is understood that the main control board may also include a water level detection module and a display module. The water level detection module can detect the water level in the liquid storage tank 12 and display the water level information on the display module. The display module can also indicate the battery charge level.

[0106] In the related art, due to the limited capacity of the liquid storage tank 12, users need to add water frequently when flushing their teeth. If the capacity of the liquid storage tank 12 is increased, the volume of the liquid storage tank 12 will increase. The large liquid storage tank 12 is inconvenient for users to hold. At the same time, the large liquid storage tank 12 is heavy, which increases the difficulty of use for users. Therefore, how to save water without affecting the cleaning effect is particularly important.

[0107] Based on the above situation, please refer to Figure 1-3 In one embodiment, the liquid pump 2 includes a power component 21, a transmission component 22 and a pump head component 23. The power component 21 is connected to the pump head component 23 through the transmission component 22 to drive the pump head component 23 to suck and pump liquid; wherein, within a single movement cycle of the liquid pump 2, the liquid pump 2 includes a suction stroke and a pumping stroke, and the duration of the suction stroke is greater than the duration of the pumping stroke.

[0108] In the embodiment of the present application, since the duration of the liquid suction stroke within a single motion cycle is long, the liquid suction stroke is slow, which can reduce the amount of liquid sucked by the liquid pump 2 each time, and reduce the waste caused by excess liquid that is insufficient to clean the user's mouth. This can minimize liquid waste and improve liquid utilization, thereby reducing the volume of the liquid storage tank 12 in the oral care device 1, thereby reducing the space occupied by the liquid storage tank 12 in the oral care device 1 and reducing the overall volume of the oral care device 1. In addition, since the duration of the pumping stroke is short, the pumping stroke is fast, which can generate greater pumping energy and stronger impact force, and can more effectively flush food residues, bacteria, etc. in difficult-to-clean areas in the oral cavity, such as the gaps between teeth and the gingival sulcus, thereby ensuring a better cleaning effect on the user's oral cavity. In this way, it is possible to achieve the purpose of saving water while ensuring a better cleaning effect on the user's oral cavity.

[0109] Please refer to Figure 1-3 In one embodiment, the first parameter of the power assembly 21 is controlled to be smaller than the first parameter of the power assembly 21 during the liquid suction stroke. By controlling the first parameter of the power assembly 21 during the liquid suction stroke to be smaller than the first parameter of the power assembly 21 during the liquid pumping stroke, the duration of the liquid suction stroke can be longer than the duration of the liquid pumping stroke within a single movement cycle of the liquid pump 2, thereby ensuring that water conservation is achieved while having a good cleaning effect on the user's oral cavity. It is understandable that the first parameter includes at least one of power, speed, and torque.

[0110] For example, when the first parameter is power, the main control board can control the power of the power component 21 on the suction stroke to be less than the power of the power component 21 on the pumping stroke according to a preset program, thereby making the rotation speed of the power component 21 on the suction stroke less than the rotation speed of the power component 21 on the pumping stroke, so that the duration of the suction stroke is greater than the duration of the pumping stroke, thereby ensuring that the purpose of saving water is achieved while having a better cleaning effect on the user's oral cavity.

[0111] Please refer to Figure 1-3 In one embodiment, the liquid pump 2 includes a position sensor (not shown in the figure), which is electrically connected to the main control board. The main control board detects the movement position of the power assembly 21 through the position sensor. During the operation of the liquid pump 2, when the position sensor detects that the movement position of the power assembly 21 corresponds to the position of the pumping stroke, the position sensor can send a pumping signal to the control board. The main control board can control the first parameter of the power assembly 21 to increase based on the pumping signal, so that at least one of the power, speed, or torque of the power assembly 21 is increased, ensuring that the duration of the pumping stroke is short. In addition, during the pumping stroke, the liquid can be ejected at a higher pressure and speed, which can enhance the cleaning effect on the user's oral cavity. When the position sensor detects that the movement position of the power assembly 21 corresponds to the position of the suction stroke, the position sensor can send a suction signal to the control board. The main control board can control the first parameter of the power assembly 21 to decrease based on the suction signal, so that at least one of the power, speed, or torque of the power assembly 21 is reduced, ensuring that the duration of the suction stroke is long, which can effectively slow down the suction speed and reduce the amount of liquid sucked by the liquid pump 2, thereby achieving the purpose of saving water. In other embodiments, the position sensor can also detect the movement position of the transmission assembly 22 and the pump head assembly 23, and then adjust the first parameter of the power assembly 21 through the main control board to achieve the purpose of saving water while having a better cleaning effect on the user's oral cavity.

[0112] In addition, since the position sensor can monitor the movement status of the power component 21, the transmission component 22 and the pump head component 23 in real time, the main control board can dynamically adjust the first parameter of the power component 21 according to different stroke positions, ensuring that the liquid pump 2 can be in a good working state throughout the entire movement cycle. This not only improves the working efficiency of the liquid pump 2, but also further optimizes the overall performance of the oral care device 1, bringing users a more stable, efficient and water-saving oral care experience.

[0113] It is understandable that the position sensor is used to detect the movement position of at least one of the power assembly 21, the transmission assembly 22 and the pump head assembly 23, which will not be described in detail here.

[0114] Please refer to Figure 1-3In one embodiment, within a single movement cycle of the liquid pump 2, the suction speed of the suction stroke is less than the pumping speed of the pumping stroke, so that within a single movement cycle of the liquid pump 2, the duration of the suction stroke is greater than the duration of the pumping stroke, which can ensure that the user's oral cavity has a good cleaning effect and the purpose of water saving is achieved. It can be understood that within a single movement cycle of the liquid pump 2, the suction pressure of the suction stroke is less than the pumping pressure of the pumping stroke, which can also make the suction speed of the suction stroke less than the pumping speed of the pumping stroke, thereby ensuring that the user's oral cavity has a good cleaning effect and the purpose of water saving is achieved.

[0115] For example, please refer to Figure 4 and Figure 5 The liquid pump 2A includes a power assembly 21A, a transmission assembly 22A, and a pump head assembly 23A. The transmission assembly 22A includes a first transmission member 221A and a second transmission member 222A. The first transmission member 221A is connected to the power assembly 21A, and the second transmission member 222A is connected to the pump head assembly 23A. In a single motion cycle, the power assembly 21A drives the first transmission member 221A to rotate in the forward direction, so that the first transmission member 221A can drive the second transmission member 222A to move back and forth, thereby driving the pump head assembly 23A to pass through the liquid suction stroke and the liquid pumping stroke in sequence. Therefore, when the duration of the liquid suction stroke is longer than the duration of the liquid pumping stroke, it can ensure that the user's oral cavity has a good cleaning effect while achieving the purpose of saving water.

[0116] The main control board can also monitor the movement status of the power component 21A, the transmission component 22A and the pump head component 23A in real time through the position sensor, so that the main control board can dynamically adjust the first parameter of the power component 21A according to different stroke positions, thereby ensuring that the purpose of saving water is achieved while having a better cleaning effect on the user's oral cavity.

[0117] Of course, within a single movement cycle of the liquid pump 2A, the main control board can also make the duration of the suction stroke longer than the duration of the pumping stroke by controlling the suction speed of the suction stroke to be lower than the pumping speed of the pumping stroke, thereby ensuring that the purpose of saving water is achieved while having a better cleaning effect on the user's oral cavity.

[0118] Please refer to Figure 1-3 In one embodiment, within a single movement cycle of the liquid pump 2B, the movement amplitude of the power component 21B corresponding to the suction stroke is greater than the movement amplitude of the power component 21B corresponding to the pumping stroke, so that within a single movement cycle of the liquid pump 2B, the duration of the suction stroke is greater than the duration of the pumping stroke, which can ensure that the purpose of saving water is achieved while having a good cleaning effect on the user's oral cavity.

[0119] For details, please refer to Figure 6-9Liquid pump 2B includes a power assembly 21B, a transmission assembly 22B, and a pump head assembly 23B. Transmission assembly 22B includes a first transmission member 221B and a second transmission member 222B. The first transmission member 221B is connected to power assembly 21B, and the second transmission member 222B is connected to pump head assembly 23B. During a single motion cycle, power assembly 21B drives first transmission member 221B to rotate in the forward direction, so that first transmission member 221B can drive second transmission member 222B to move back and forth, thereby driving pump head assembly 23B to sequentially complete a suction stroke and a pumping stroke. In addition, a pump-liquid matching section 22B1 and a suction matching section 22B2 are formed between the first transmission member 221B and the second transmission member 222B. When the liquid pump 2B is in the pumping stroke, the first transmission member 221B and the second transmission member 222B match in the pump-liquid matching section 22B1. When the liquid pump 2B is in the suction stroke, the first transmission member 221B and the second transmission member 222B match in the suction matching section 22B2.

[0120] When the liquid pump 2B is in the pumping stroke, the first transmission member 221B and the second transmission member 222B cooperate in the pumping cooperation section 22B1, so that the power component 21B can drive the pump head component 23B to perform the pumping stroke through the first transmission member 221B and the second transmission member 222B, thereby pumping out the liquid and cleaning the user's mouth. When the liquid pump 2B is in the liquid suction stroke, the first transmission member 221B and the second transmission member 222B cooperate in the liquid suction cooperation section 22B2, so that the power component 21B can drive the pump head component 23B to perform the liquid suction stroke through the first transmission member 221B and the second transmission member 222B, thereby being able to suck out the liquid in the liquid storage tank 12B, so that the liquid can be pumped out during the pumping stroke to clean the user's oral cavity, and the movement amplitude of the power component 21B corresponding to the movement of the first transmission member 221B and the second transmission member 222B in the pumping cooperation section 22B1 is smaller than the movement amplitude of the power component 21B corresponding to the movement of the first transmission member 221B and the second transmission member 222B in the liquid suction cooperation section 22B2, so that the duration of the power component 21B in the liquid suction stroke is longer than the duration of the liquid pumping stroke, thereby ensuring that the purpose of saving water is achieved while having a good cleaning effect on the user's oral cavity.

[0121] Please refer to Figure 6-9In one embodiment, when the power assembly 21B outputs uniform motion, a sloped fit is formed between the first transmission member 221B and the second transmission member 222B. The slope of the pumping section 22B1 is greater than the slope of the suction section 22B2. This allows the transmission speed of the first transmission member 221B and the second transmission member 222B in the pumping section 22B1 to be greater than the transmission speed of the suction section 22B2. Consequently, during the pumping stroke, liquid is ejected at a greater pressure and speed, enhancing the cleaning effect on the user's oral cavity and reducing the suction speed during the suction stroke to achieve water conservation. In other embodiments, the length of the pumping section 22B1 is less than the length of the suction section 22B2, which can also ensure a good cleaning effect on the user's oral cavity while achieving the purpose of water conservation.

[0122] Please refer to Figure 6-9 Specifically, one of the first transmission member 221B and the second transmission member 222B is provided with a sloped annular table 22B3, and the other is provided with a matching portion 22B4. The annular table 22B3 is formed with a pumping section and a suction section. The matching portion 22B4 and the pumping section form a pumping matching section 22B1, and the matching portion 22B4 and the suction section form a suction matching section 22B2. In other embodiments, the pumping matching section 22B1 and the suction matching section 22B2 can also be formed in other ways. In the embodiment of the present application, the specific formation method of the pumping matching section 22B1 and the suction matching section 22B2 is not limited.

[0123] Please refer to Figure 10 In one embodiment, a single movement cycle of the liquid pump 2E includes more suction strokes than pumping strokes.

[0124] Please refer to Figure 10 Specifically, a single movement cycle of the liquid pump 2E includes multiple suction strokes and one pumping stroke, so that in a single movement cycle, the liquid pump 2E can perform multiple suction strokes and then one pumping stroke, so that in a single movement cycle of the liquid pump 2E, the total water pumping time is greater than the total liquid pumping time, which can ensure that the purpose of saving water is achieved under the premise of having a good cleaning effect on the user's oral cavity.

[0125] Please refer to Figure 10In one embodiment, the pump head assembly 23E includes a liquid suction part 231E and a liquid pumping part 232E, and the transmission assembly 22E includes a third transmission part 223E and a fourth transmission part 224E. The power assembly 21E drives the liquid pumping part 232E to move through the third transmission part 223E, and the power assembly 21E drives the liquid suction part 231E to move through the fourth transmission part 224E. The transmission ratio of the third transmission part 223E is greater than the transmission ratio of the fourth transmission part 224E, so that the rotation speed of the fourth transmission part 224E is greater than the rotation speed of the third transmission part 223E, so that in a single movement cycle, the liquid pump 2E can perform multiple liquid suction strokes and then perform one liquid pumping stroke, so that in a single movement cycle of the liquid pump 2E, the total pumping time is greater than the total pumping time, which can ensure that the purpose of saving water is achieved while having a good cleaning effect on the user's oral cavity.

[0126] Please refer to Figure 10 Specifically, the output shaft of the power component 21E is coaxially connected with a helical gear, and the helical gear is meshingly connected with a gear plate, which is transmission-connected to the third transmission member 223E and the fourth transmission member 224E. The transmission ratio of the gear plate to the third transmission member 223E is greater than the transmission ratio of the gear plate to the fourth transmission member 224E, so that the rotation speed of the fourth transmission member 224E is greater than the rotation speed of the third transmission member 223E, so that within a single motion cycle, the liquid pump 2E can perform multiple suction strokes and then one pumping stroke, ensuring that the purpose of saving water is achieved while having a good cleaning effect on the user's oral cavity.

[0127] Please refer to Figure 3-5 In one embodiment, the liquid pump 2 also includes an energy storage stroke arranged between the liquid suction stroke and the liquid pumping stroke; when the liquid pump 2 is in the energy storage stroke, at least one of the power component 21, the transmission component 22 and the pump head component 23 is in a separated state, so that when the power component 21 is running, the pump head component 23 is almost not linked to move, so that the power component 21 can drive the transmission component 22 to accelerate within the energy storage stroke, so that at the beginning of the liquid pumping stroke, the transmission component 22 can drive the pump head component 23 to move at a faster speed, and then in the liquid pumping stroke, the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity.

[0128] In addition, an energy storage stroke is set between the suction stroke and the pump stroke, which can reduce the proportion of the suction stroke duration in a single motion cycle, thereby further shortening the suction stroke duration and achieving the purpose of water saving.

[0129] Please refer to Figure 3-5In a specific embodiment, the transmission assembly 22 may include an active member and a passive member, the active member being connected to the power assembly 21, and the passive member being connected to the pump head assembly 23; when the transmission assembly 22 is in the pumping stroke, the active member and the passive member are in a coordinated state, so that the power assembly 21 can drive the pump head assembly 23 to move through the active member and the passive member, thereby pumping out the liquid, thereby cleaning the user's oral cavity. When the transmission assembly 22 is in the energy storage stroke, the active member and the passive member are in a separated state, so that the power assembly 21 can drive the active member to move without driving the passive member to move, thereby not linking the pump head assembly 23, thereby reducing the resistance to the movement of the active member, thereby enabling the power assembly 21 to drive the active member to accelerate the movement, and accumulating energy in the active member, so that at the beginning of the pumping stroke, the active member can drive the passive member to move at a faster speed, thereby driving the pump head assembly 23 to move quickly, thereby enabling the liquid to be ejected at a greater pressure and speed during the pumping stroke, thereby enhancing the cleaning effect on the user's oral cavity.

[0130] Please refer to Figure 3-5 , for example, the active member and the driven member can be a cam and a sleeve respectively. When the transmission assembly 22 is in the pumping stroke, the cam and the inner wall of the sleeve are in a matching state, so that the power assembly 21 can drive the pump head assembly 23 to move through the active member and the driven member, thereby being able to pump out the liquid. When the transmission assembly 22 is in the energy storage stroke (please refer to Figure 5 ), the cam and the inner wall of the sleeve are in a separated state or in a contact but non-working state, so that the cam cannot drive the sleeve to move.

[0131] Please refer to Figure 11 In another specific embodiment, the power assembly 21C includes a power member 211C and a clutch member 212C, and the power member 211C is connected to the transmission assembly 22C through the clutch member 212C; when the power assembly 21C is in the pumping stroke, the clutch member 212C is in a mating state, and the power member 211C can drive the transmission assembly 22C to move through the clutch member 212C, so as to drive the pump head assembly 23C to move through the transmission assembly 22C, thereby being able to pump out the liquid; when the power assembly 21C is in the energy storage stroke, the clutch member 212C is in a separation state. In the disengaged state, the power member 211C cannot drive the transmission assembly 22C to move through the clutch member 212C, so that the power member 211C alone drives the clutch member 212C to accelerate the movement, thereby storing energy in the clutch member 212C, so that at the beginning of the pumping stroke, the clutch member 212C switches to the engaged state, and the clutch member 212C drives the transmission assembly 22C to move at a faster speed, so as to drive the pump head assembly 23C to move quickly, and then in the pumping stroke, the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity.

[0132] Please refer to Figure 11In a specific embodiment, when the liquid pump 2C is in the liquid suction stroke, the power component 21C, the transmission component 22C and the pump head component 23C are in a coordinated state, so that the pump head component 23C can be linked to move when the power component 21C is running, so that liquid can be sucked from the liquid storage tank 12C.

[0133] Please refer to Figure 11 In another specific embodiment, the liquid pump 2C further includes a reset member 24C that cooperates with the pump head assembly 23C. When the liquid pump 2C is in the liquid suction stroke, the power assembly 21C, the transmission assembly 22C and the pump head assembly 23C are in at least one of the above-mentioned separation states. The pump head assembly 23C can move under the action of the reset member 24C, thereby also being able to draw liquid from the liquid storage tank 12C. It can be understood that the reset member 24C can be a spring. When the liquid pump 2C is in the liquid pumping stroke, the spring is compressed; when the liquid pump 2C is in the liquid suction stroke, the spring restores its elastic deformation to drive the pump head assembly 23C to move and draw liquid from the liquid storage tank 12C. In other embodiments, the reset member 24C can also be other components that can produce elastic deformation, such as an elastic steel sheet or an elastic rubber strip. In the embodiment of the present application, the specific form of the reset member 24C is not limited.

[0134] It is understandable that in Figure 12 In the liquid pump 2D shown, when the liquid pump 2D includes a reset member 24D that cooperates with the pump head assembly 23D, the first transmission member 221D can be a gear, which is connected to the power assembly 21D, and the second transmission member 222D can be a rack, which is meshed with the gear, and the rack can follow the positive rotation of the gear and move in the direction close to the pump head assembly 23D, thereby pushing the pump head assembly 23D to perform a pumping stroke; and the rack can also follow the reverse rotation of the gear and move in the direction away from the pump head assembly 23D. At this time, the reset member 24D can drive the pump head assembly 23D to perform a suction stroke.

[0135] Furthermore, when the power component 21D is able to drive the gear to rotate in the opposite direction until the rack is separated from the pump head component 23D, and then drives the gear to rotate in the forward direction, since the rack and the pump head component 23D are spaced apart, the rack is driven by the gear to accelerate toward the pump head component 23D until it contacts the pump head component 23D at a faster speed, causing the pump head component 23D to start the pumping stroke, so that the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity. At this time, there is an energy storage process after the suction stroke and before the pumping stroke.

[0136] Please refer to Figure 1-3The embodiment of the present application also provides a liquid pump 2 for an oral care device, which includes a power component 21, a transmission component 22 and a pump head component 23. The power component 21 is connected to the pump head component 23 through the transmission component 22 to drive the pump head component 23 to suck and pump liquid; within a single movement cycle of the liquid pump 2, the liquid pump 2 includes a suction stroke, an interval stroke and a pumping stroke. Within the interval stroke, the power component 21 stops running or the power component 21 and the transmission component 22 do not drive the pump head component 23 to move. Adding an interval stroke between the suction stroke and the pumping stroke can reduce the proportion of the suction stroke duration in a single movement cycle, thereby further shortening the suction stroke duration, and thus achieving the purpose of saving water.

[0137] Please refer to Figure 1-3 In one embodiment, the interval stroke includes an energy storage stroke; when the liquid pump 2 is in the energy storage stroke, at least one of the power assembly 21, the transmission assembly 22 and the pump head assembly 23 is in a separated state, so that when the power assembly 21 is in operation, the pump head assembly 23 is hardly linked to move; within a single movement cycle of the liquid pump 2, the suction stroke, the energy storage stroke and the liquid pumping stroke are performed successively. Since when the liquid pump 2 is in the energy storage stroke, the power assembly 21 is hardly linked to move the pump head assembly 23 when it is in operation, so that the power assembly 21 can drive the transmission assembly 22 to accelerate in the energy storage stroke, so that at the beginning of the liquid pumping stroke, the transmission assembly 22 can drive the pump head assembly 23 to move at a faster speed, and then in the liquid pumping stroke, the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity.

[0138] Please refer to Figure 1-3 In one embodiment, the power assembly 21 is powered off during the interval stroke, and within a single motion cycle of the liquid pump 2, the suction stroke, pumping stroke, and interval stroke are performed successively, or the interval stroke, suction stroke, and pumping stroke are performed successively. Since the power assembly 21 is powered off during the interval stroke, within a single motion cycle of the liquid pump 2, the suction stroke, pumping stroke, and interval stroke are performed successively, the movement speed of the power assembly 21 can be reduced at the end of the interval stroke, so that within the suction stroke, the power assembly 21 is accelerated from a low speed, so that the average speed of the power assembly 21 within the suction stroke is slower, thereby slowing down the suction speed, reducing the amount of liquid suctioned, and achieving the purpose of saving water. When entering the pumping stroke from the suction stroke, the power assembly 21 has a faster speed after being accelerated during the suction stroke, and thereby, during the pumping stroke, the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity. It is understandable that the interval stroke can also be set before the suction stroke, which can also achieve the purpose of saving water while having a better cleaning effect on the user's oral cavity.

[0139] Please refer to Figure 1-3In one embodiment, within a single movement cycle of the liquid pump 2, the power component 21 is energized for a first period and de-energized for a second period in sequence; the second period overlaps with the interval stroke, or at least part of the second period overlaps with the pumping stroke and / or the suction stroke.

[0140] During a single movement cycle of the liquid pump 2, the main control board controls the power component 21 to be powered on for a first period of time, and then powered off for a second period of time, and makes the second period of time be after the pumping stroke, so that the suction stroke is performed during the second period of power outage, so that the average speed of the power component 21 during the suction stroke is slower, and thus the suction speed can be slower, which can reduce the amount of suction and achieve the purpose of saving water.

[0141] In other embodiments, the second duration can be set before the liquid aspiration stroke, so that during the second power-off duration, the rotation speed of the power assembly 21 gradually decreases, so that the power assembly 21 needs to accelerate from a lower speed during the liquid aspiration stroke, so that the average rotation speed of the power assembly 21 during the liquid aspiration stroke is slower, thereby slowing down the liquid aspiration speed, reducing the amount of liquid aspirated, and achieving the purpose of water conservation. Alternatively, the second duration can be set between the liquid pumping stroke and the liquid aspiration stroke, which can also reduce the amount of liquid aspirated, achieving the purpose of water conservation.

[0142] In other embodiments, at least part of the second time duration can be overlapped with the pumping stroke, or at least part of the second time duration can be overlapped with the suction stroke, or the second time duration can be at least partially overlapped with the pumping stroke and the suction stroke, thereby reducing the amount of suction and achieving the purpose of saving water.

[0143] For details, please refer to Figure 4 and Figure 5 The liquid pump 2A includes a power component 21A, a transmission component 22A and a pump head component 23A. The power component 21A is connected to the pump head component 23A through the transmission component 22A to drive the pump head component 23A to absorb and pump liquid. In a single movement cycle of the liquid pump 2A, the liquid pump 2A includes a suction stroke, an interval stroke and a pumping stroke. In the interval stroke, the power component 21A stops running or the power component 21A and the transmission component 22A do not drive the pump head component 23A to move. Adding an interval stroke between the suction stroke and the pumping stroke can reduce the proportion of the suction stroke duration in a single movement cycle, thereby further shortening the suction stroke duration, and thus achieving the purpose of saving water.

[0144] It can be understood that the interval stroke of the liquid pump 2A can also include an energy storage stroke. When the liquid pump 2A is in the energy storage stroke, the power component 21A hardly drives the pump head component 23A to move during operation, so that the power component 21A can drive the transmission component 22A to accelerate within the energy storage stroke, so that at the beginning of the pumping stroke, the transmission component 22A can drive the pump head component 23A to move at a faster speed, and then in the pumping stroke, the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity.

[0145] It is understood that within a single motion cycle of the liquid pump 2A, the power assembly 21A may be sequentially powered on for a first duration and powered off for a second duration; the second duration may overlap with the interval stroke, or at least a portion of the second duration may overlap with the pumping stroke and / or the suction stroke. Similar detailed descriptions have been provided in the above embodiments and are not further elaborated upon here.

[0146] Specifically, in Figure 11 The liquid pump 2C shown can also be provided with an interval stroke, which can reduce the proportion of the duration of the liquid suction stroke in a single motion cycle, thereby further shortening the duration of the liquid suction stroke and achieving the purpose of water saving.

[0147] Of course, an energy storage stroke can also be set in the liquid pump 2C, so that at the beginning of the pumping stroke, the clutch 212C can drive the pump head assembly 23C to move at a faster speed through the transmission assembly 22C, and then during the pumping stroke, the liquid can be sprayed out at a greater pressure and speed, which can enhance the cleaning effect on the user's mouth.

[0148] It is understood that within a single motion cycle of the liquid pump 2C, the power assembly 21C may be energized for a first duration and de-energized for a second duration; the second duration may overlap with the interval stroke, or at least a portion of the second duration may overlap with the pumping stroke and / or the suction stroke. Similar detailed descriptions have been provided in the above embodiments and are not further elaborated here.

[0149] Specifically, in Figure 12 The liquid pump 2D shown can also be provided with an interval stroke, which can also reduce the proportion of the duration of the liquid suction stroke in a single motion cycle, thereby further shortening the duration of the liquid suction stroke and achieving the purpose of water saving.

[0150] Of course, an energy storage stroke can also be set so that at the beginning of the pumping stroke, the second transmission member 222D can drive the pump head assembly 23D to move at a faster speed, and then during the pumping stroke, the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's mouth.

[0151] It is understood that within a single motion cycle of the liquid pump 2D, the power assembly 21D may be energized for a first duration and de-energized for a second duration; the second duration may overlap with the interval stroke, or at least a portion of the second duration may overlap with the pumping stroke and / or the suction stroke. Similar detailed descriptions have been provided in the above embodiments and are not further elaborated upon here.

[0152] Please refer to Figure 1-5 as well as Figure 13 , the embodiment of the present application also provides a method for controlling the liquid pump 2 of the oral care device, the control method comprising:

[0153] Step S100 , controlling the power assembly 21 to be powered on for a first time period and then powered off for a second time period.

[0154] In an embodiment of the present application, within a single movement cycle of the liquid pump 2, the main control board controls the power component 21 to be powered on for a first period of time, and then powered off for a second period of time, and makes the second period of time be after the pumping stroke, so that the suction stroke is performed within the second period of power outage, so that the average speed of the power component 21 within the suction stroke is slower, and thus the suction speed can be slower, which can reduce the amount of suction and achieve the purpose of saving water.

[0155] In other embodiments, the second duration can be set before the liquid aspiration stroke, so that during the second power-off duration, the rotation speed of the power assembly 21 gradually decreases, so that the power assembly 21 needs to accelerate from a lower speed during the liquid aspiration stroke, so that the average rotation speed of the power assembly 21 during the liquid aspiration stroke is slower, thereby slowing down the liquid aspiration speed, reducing the amount of liquid aspirated, and achieving the purpose of water conservation. Alternatively, the second duration can be set between the liquid pumping stroke and the liquid aspiration stroke, which can also reduce the amount of liquid aspirated, achieving the purpose of water conservation.

[0156] In other embodiments, at least part of the second time duration can be overlapped with the pumping stroke, or at least part of the second time duration can be overlapped with the suction stroke, or the second time duration can be at least partially overlapped with the pumping stroke and the suction stroke, thereby reducing the amount of suction and achieving the purpose of saving water.

[0157] For details, please refer to Figure 4 and Figure 5 During a single motion cycle of the liquid pump 2A, the main control board controls the power assembly 21A to be powered on for a first duration and then powered off for a second duration. For example, during the first duration, the power assembly 21A can drive the first transmission member 221A to rotate in the forward direction, so that the first transmission member 221A can drive the second transmission member 222A to drive the pump head assembly 23A to sequentially complete the pumping stroke. During the second duration, due to the power assembly 21A being powered off, the pump head assembly 23A can rebound on its own or perform the liquid suction stroke under the action of the reset member.

[0158] It can be understood that the second time length can be located after the pumping stroke; the second time length can also be set before the suction stroke; at least part of the second time length can also overlap with the pumping stroke, or at least part of the second time length can overlap with the suction stroke. All of the above methods can reduce the amount of suction and achieve the purpose of water saving. Similar detailed descriptions have been given in the above embodiments, so we will not go into details here.

[0159] Understandably, please refer to Figure 11 During a single motion cycle of the liquid pump 2C, the main control board controls the power assembly 21C to be powered on for a first duration and then powered off for a second duration. For example, during the first powered-on duration, the power member 211C can drive the first transmission member 221C to rotate in the forward direction via the engaged clutch member 212C, so that the first transmission member 221C can drive the pump head assembly 23C through the second transmission member 222C to complete the pumping stroke and cause the reset member 24C to elastically deform. During the second powered-off duration, the clutch member 212C is in a disengaged state, and the reset member 24C recovers its deformation, thereby driving the pump head assembly 23C through the suction stroke.

[0160] It can be understood that the second time length can be located after the pumping stroke; the second time length can also be set before the suction stroke; at least part of the second time length can also overlap with the pumping stroke, or at least part of the second time length can overlap with the suction stroke. All of the above methods can reduce the amount of suction and achieve the purpose of water saving. Similar detailed descriptions have been given in the above embodiments, so we will not go into details here.

[0161] Similarly, please refer to Figure 12 In the liquid pump 2D, during the first power-on period, the power component 21D can drive the first transmission member 221D to rotate in the forward direction, and make the second transmission member 222D move toward the direction close to the pump head component 23D, thereby pushing the pump head component 23D to perform the pumping stroke and causing the reset member 24D to produce elastic deformation; during the second power-off period, the reset member 24C recovers its deformation to drive the pump head component 23D to pass the suction stroke and push the second transmission member 222D to move away from the pump head component 23D.

[0162] Please refer to Figure 1-3 as well as Figure 14 In one embodiment, step S100 includes:

[0163] Step S110 : controlling the power assembly 21 to be powered on for a first duration, so that the pump head assembly 23 performs at least a portion of the pumping stroke at the end of the first duration.

[0164] In an embodiment of the present application, the main control board controls the power component 21 to be powered on for the first period of time, so that the power component 21 can drive the pump head component 23 to move through the transmission component 22, so that the pump head component 23 can perform the entire pumping stroke at the end of the first period of time, or perform a partial pumping stroke at the end of the first period of time, and cut off the power for the second period of time. The pumping stroke can be set at the end of the first period of time when the power component 21 rotates at a faster speed, and then during the pumping stroke, the liquid can be sprayed out at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity.

[0165] Step S120, control the power component 21 to be powered off for a second time period so that the pump head component 23 performs at least part of the liquid suction stroke within the second time period, or control the power component 21 to be powered off for a second time period so that the pump head component 23 performs the entire liquid suction stroke in the initial section of the first time period.

[0166] In the embodiment of the present application, the main control board controls the power assembly 21 to be powered off for a second time period so that the pump head assembly 23 performs at least part of the liquid suction stroke within the second time period, or the main control board controls the power assembly 21 to be powered off for a second time period so that the pump head assembly 23 performs the entire liquid suction stroke in the initial section of the first time period, both of which can make the average speed of the power assembly 21 of the liquid suction stroke slower, thereby making the liquid suction speed slower, reducing the amount of liquid suction, and achieving the purpose of water saving. It is understandable that since the power assembly 21 is in a power-off state during the second time period, the process of the main control board controlling the pump head assembly 23 to perform the liquid suction stroke can be understood as controlling the power assembly 21 and the transmission assembly 22 to not generate resistance to the inertial motion of the pump head assembly 23, or the resistance is small, or controlling the power assembly 21 and the transmission assembly 22 to not generate resistance to the pump head assembly 23 moving under the action of the reset member 24, or the resistance is small, both of which can enable the pump head assembly 23 to draw liquid from the liquid storage tank 12.

[0167] For details, please refer to Figure 4 and Figure 5 In a single movement cycle of the liquid pump 2A, the main control board controls the power component 21A to be energized for the first period of time, so that the power component 21A can drive the pump head component 23A to move through the transmission component 22A, so that the pump head component 23A can perform the entire pumping stroke at the end of the first period of time, or perform a partial pumping stroke at the end of the first period of time, and then in the pumping stroke, the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity.

[0168] The main control board controls the power component 21A to be powered off for the second period so that the pump head component 23A performs at least part of the liquid suction stroke within the second period, or the main control board controls the power component 21A to be powered off for the second period so that the pump head component 23A performs the entire liquid suction stroke in the initial section of the first period. Both of these can make the average rotation speed of the power component 21A in the liquid suction stroke slower, thereby making the liquid suction speed slower, reducing the liquid suction amount, and achieving the purpose of saving water.

[0169] It is understandable that the above solution can also be implemented by Figure 11 The liquid pump 21C shown in FIG. 2 can also be realized by Figure 12 The liquid pump 21D shown can achieve the purpose of saving water while ensuring a good cleaning effect on the user's oral cavity.

[0170] Please refer to Figure 1-3 as well as Figure 15 In one embodiment, step S110 includes:

[0171] Step S111, control the power component 21 to be energized for the first time period, so that the pump head component 23 performs the entire pumping stroke at the end of the first time period; or, control the power component 21 to be energized for the first time period, so that the pump head component 23 starts the pumping stroke at the end of the first time period and ends the pumping stroke at the initial stage of the second time period.

[0172] In an embodiment of the present application, the main control board controls the power component 21 to be energized for the first period of time, so that the pump head component 23 performs the entire pumping stroke at the end of the first period of time; or, the main control board controls the power component 21 to be energized for the first period of time, so that the pump head component 23 starts the pumping stroke at the end of the first period of time and ends the pumping stroke at the initial period of the second period of time. Both of these can set the pumping stroke at the end of the first period of time when the power component 21 rotates at a faster speed, and thus, during the pumping stroke, the liquid can be ejected at a greater pressure and speed, thereby enhancing the cleaning effect on the user's oral cavity.

[0173] It is understandable that Figure 4 and Figure 5 The liquid pump 2A in the embodiment performs the steps of the above method to achieve the purpose of saving water while having a good cleaning effect on the user's oral cavity. Figure 11 The liquid pump 21C shown in FIG. 2 can also be realized by Figure 12 The liquid pump 21D shown is implemented. No more details are given here.

[0174] Please refer to Figure 1-3 as well as Figure 16 In one embodiment, step S120 includes:

[0175] Step S121, control the power component 21 to be powered off for the second time period so that the pump head component 23 performs the entire suction stroke within the second time period; or, control the power component 21 to be powered off for the second time period so that the pump head component 23 starts the suction stroke at the end of the second time period and ends the suction stroke at the initial stage of the first time period.

[0176] In an embodiment of the present application, the main control board controls the power component 21 to be powered off for a second period of time, so that the pump head component 23 performs the entire suction stroke within the second period of time; or, the main control board controls the power component 21 to be powered off for a second period of time, so that the pump head component 23 starts the suction stroke at the end of the second period of time and ends the suction stroke at the initial period of the first period of time. Both of these can make the average rotation speed of the power component 21 in the suction stroke slower, thereby making the suction speed slower, reducing the suction volume, and achieving the purpose of saving water.

[0177] It is understandable that Figure 4 and Figure 5 The liquid pump 2A in the embodiment performs the steps of the above method to achieve the purpose of saving water while having a good cleaning effect on the user's oral cavity. Figure 11 The liquid pump 21C shown in FIG. 2 can also be realized by Figure 12 The liquid pump 21D shown is implemented. No more details are given here.

[0178] Please refer to Figure 1-3 as well as Figure 17 In one embodiment, step S100 includes:

[0179] Step S130 : Controlling the power assembly 21 to be powered on for a first duration, so that the pump head assembly 23 performs at least a portion of the pumping stroke within the first duration.

[0180] In an embodiment of the present application, the main control board controls the power component 21 to be powered on for a first period of time, so that the power component 21 can drive the pump head component 23 to move through the transmission component 22, so that the pump head component 23 can perform the entire pumping stroke, or part of the pumping stroke within the first period of time.

[0181] Step S140: Control the power assembly 21 to be powered off for a second time period.

[0182] In the embodiment of the present application, the main control board controls the power component 21 to be powered off for a second period of time, so that the operating speeds of the power component 21, the transmission component 22 and the pump head component 23 can gradually decrease within the second period of time.

[0183] Step S150 : Control the power assembly 21 to be powered on for a first duration, so that the pump head assembly 23 performs at least a portion of the liquid aspiration stroke within the first duration.

[0184] In an embodiment of the present application, the main control board controls the power component 21 to be powered on for a first period of time, and controls the power component 21 to drive the pump head component 23 to move through the transmission component 22, so that the pump head component 23 performs the entire suction stroke, or part of the suction stroke within the first period of time, and can make the speed of the pump head component 23 in the suction stroke slower, so that the pumping speed is slower, the suction volume can be reduced, and the purpose of saving water is achieved.

[0185] It is understandable that Figure 4 and Figure 5 The liquid pump 2A in the embodiment performs the steps of the above method to achieve the purpose of saving water while having a good cleaning effect on the user's oral cavity. Figure 11 The liquid pump 21C shown in FIG. 2 can also be realized by Figure 12 The liquid pump 21D shown is implemented. No more details are given here.

[0186] Please refer to Figure 1-3 In one embodiment, the directions of power supply during the two first time periods are opposite, so that the power component 21 can output reciprocating motion, thereby directly driving the pump head component 23 to reciprocate through the transmission component 22, thereby achieving liquid pumping and suction.

[0187] Please refer to Figure 1-3 as well as Figure 14 Specifically, the two first time periods include a first time period of forward power supply and a first time period of reverse power supply, and both the first time period of forward power supply and the first time period of reverse power supply are followed by a second time period of power off.

[0188] For details, please refer to Figure 4 and Figure 5 The pump head assembly 23A performs the entire pumping stroke at the end of the first period when the power assembly 21A is energized in the forward direction, and then performs the entire suction stroke at the initial period of the first period when the power assembly 21A is energized in the reverse direction after power is cut off for the second period. The pumping stroke can be set at the end of the first period when the power assembly 21A rotates at a faster speed, so that the liquid can be ejected at a greater pressure and speed during the pumping stroke, thereby enhancing the cleaning effect on the user's oral cavity, and at the same time, the average rotation speed of the power assembly 21A in the suction stroke can be slower, thereby slowing down the suction speed, reducing the amount of suction, and achieving the purpose of saving water.

[0189] In other embodiments, the pump head assembly 23A starts the pumping stroke at the end of the first time period when the power assembly 21A is energized in the forward direction, ends the pumping stroke within the second time period, and performs the suction stroke within the first time period when the power assembly 21A is energized in the reverse direction. This can also ensure that the purpose of saving water is achieved while having a good cleaning effect on the user's oral cavity.

[0190] In other embodiments, the pump head assembly 23A starts the pumping stroke at the end of the first time period when the power assembly 21A is energized in the forward direction, and ends the pumping stroke within the second time period; the pump head assembly 23A starts the suction stroke at the initial time period of the first time period when the power assembly 21A is energized in the reverse direction, and ends the suction stroke within the second time period, which can also ensure that the purpose of saving water is achieved under the premise of having a good cleaning effect on the user's oral cavity.

[0191] Understandably, please refer to Figure 12 When the power component 21D is energized in the forward direction, the second transmission component 222 is driven by the first transmission component 221D to move toward the direction approaching the pump head component 23, thereby pushing the pump head component 23 to perform a pumping stroke at the end of the first time period; and when the power component 21D is energized in the reverse direction, the second transmission component 222 is driven by the first transmission component 221D to move away from the pump head component 23. At this time, the reset component 24 can drive the pump head component 23 to perform a suction stroke.

[0192] Furthermore, when the power component 21 is able to drive the gear to rotate in the opposite direction until the rack is separated from the pump head component 23, and then drives the gear to rotate in the forward direction, since the rack is spaced apart from the pump head component 23, the rack is driven by the gear to accelerate toward the pump head component 23 until it contacts the pump head component 23 at a faster speed, causing the pump head component 23 to start the pumping stroke, so that the liquid can be ejected at a greater pressure and speed, which can enhance the cleaning effect on the user's oral cavity. At this time, there is an energy storage process after the suction stroke and before the pumping stroke.

[0193] Please refer to Figure 1-3 as well as Figure 18 , the embodiment of the present application also provides a method for controlling the liquid pump 2 of the oral care device, the control method comprising:

[0194] Step S200, control the power assembly 21 to drive the pump head assembly 23 to alternately suck and pump liquid, and control the first parameter of the power assembly 21 on the sucking stroke to be smaller than the first parameter of the power assembly 21 on the pumping stroke, the first parameter including at least one of power, speed, and torque.

[0195] In the embodiment of the present application, the first parameter of the power assembly 21 is controlled to be smaller than the first parameter of the power assembly 21 during the liquid suction stroke. By controlling the first parameter of the power assembly 21 during the liquid suction stroke to be smaller than the first parameter of the power assembly 21 during the liquid pumping stroke, the duration of the liquid suction stroke can be greater than the duration of the liquid pumping stroke within a single movement cycle of the liquid pump 2, thereby ensuring that water conservation is achieved while having a good cleaning effect on the user's oral cavity. It is understandable that the first parameter includes at least one of power, speed, and torque.

[0196] For example, when the first parameter is power, the main control board can control the power of the power component 21 on the suction stroke to be less than the power of the power component 21 on the pumping stroke according to a preset program, thereby making the rotation speed of the power component 21 on the suction stroke less than the rotation speed of the power component 21 on the pumping stroke, so that the duration of the suction stroke is greater than the duration of the pumping stroke, thereby ensuring that the purpose of saving water is achieved while having a better cleaning effect on the user's oral cavity.

[0197] It is understandable that the above solution can be applied to Figure 4-12 The illustrated liquid pumps 2A, 2B, 2C, 2D, and 2E can each achieve water conservation while ensuring a good oral cleaning effect by controlling the first parameter of the power assembly 21 during the suction stroke to be less than the first parameter of the power assembly 21 during the pumping stroke. This will not be further elaborated upon here.

[0198] In the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0199] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0200] In the description of this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly limited. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0201] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0202] The above content is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A liquid pump for an oral care device, characterized in that: The liquid pump comprises: Powertrain and transmission components; and, A pump head assembly, wherein the power assembly is connected to the pump head assembly through the transmission assembly to drive the pump head assembly to absorb and pump liquid; Wherein, within a single motion cycle of the liquid pump, the liquid pump includes a liquid suction stroke and a liquid pumping stroke, and the duration of the liquid suction stroke is greater than the duration of the liquid pumping stroke.

2. The liquid pump according to claim 1, wherein The first parameter of the power component is controlled to be smaller than the first parameter of the power component on the pumping stroke during the suction stroke, wherein the first parameter includes at least one of power, speed, and torque.

3. The liquid pump according to claim 2, wherein The liquid pump includes a position sensor, which is used to detect the movement position of at least one of the power component, the transmission component and the pump head component, so as to control the first parameter of the power component at a position corresponding to the pumping stroke and a position corresponding to the suction stroke.

4. The liquid pump according to claim 1, wherein In a single movement cycle of the liquid pump, the suction speed of the suction stroke is lower than the pumping speed of the pumping stroke, and / or the suction pressure of the suction stroke is lower than the pumping pressure of the pumping stroke.

5. The liquid pump according to claim 1, wherein In a single motion cycle of the liquid pump, the motion amplitude of the power component corresponding to the liquid suction stroke is greater than the motion amplitude of the power component corresponding to the liquid pumping stroke.

6. The liquid pump according to claim 1, wherein The transmission assembly includes a first transmission member and a second transmission member, the first transmission member is connected to the power assembly, and the second transmission member is connected to the pump head assembly. A pumping and liquid matching section and a suction matching section are formed between the first transmission member and the second transmission member. When the liquid pump is in the pumping stroke, the first transmission member and the second transmission member match in the pumping and liquid matching section. When the liquid pump is in the suction stroke, the first transmission member and the second transmission member match in the suction matching section. Wherein, the movement amplitude of the power assembly corresponding to the movement of the first transmission member and the second transmission member in the pump liquid matching section is smaller than the movement amplitude of the power assembly corresponding to the movement of the first transmission member and the second transmission member in the suction liquid matching section.

7. The liquid pump according to claim 6, wherein: The power assembly outputs uniform motion.

8. The liquid pump according to claim 6, wherein: An inclined surface is formed between the first transmission member and the second transmission member, the matching slope of the pumping matching section is greater than the matching slope of the suction matching section, and / or the length of the pumping matching section is less than the length of the suction matching section.

9. The liquid pump according to claim 8, wherein One of the first transmission member and the second transmission member is provided with a sloped annular table, and the other is provided with a matching portion, the annular table forms a pumping liquid section and a suction liquid section, the matching portion and the pumping liquid section form a pumping liquid matching section, and the matching portion and the suction liquid section form a suction liquid matching section.

10. The liquid pump according to claim 1, wherein A single movement cycle of the liquid pump includes more suction strokes than pumping strokes.

11. The liquid pump according to claim 10, wherein A single motion cycle of the liquid pump includes a plurality of liquid suction strokes and one liquid pumping stroke.

12. The liquid pump according to claim 10, wherein The pump head assembly includes a liquid suction part and a liquid pumping part, and the transmission assembly includes a third transmission part and a fourth transmission part. The power assembly drives the liquid pumping part to move through the third transmission part, and the power assembly drives the liquid suction part to move through the fourth transmission part. The transmission ratio of the third transmission part is greater than the transmission ratio of the fourth transmission part.

13. The liquid pump according to claim 1, wherein The liquid pump further includes an energy storage stroke arranged between the liquid suction stroke and the liquid pumping stroke; When the liquid pump is in the energy storage stroke, at least one of the power assembly, the transmission assembly and the pump head assembly is in a separated state, so that the pump head assembly is hardly linked to movement when the power assembly is running.

14. The liquid pump according to claim 13, wherein The transmission assembly includes a driving member and a driven member, the driving member is connected to the power assembly, and the driven member is connected to the pump head assembly; When the transmission assembly is in the pumping stroke, the active member and the driven member are in a matched state; when the transmission assembly is in the energy storage stroke, the active member and the driven member are in a separated state.

15. The liquid pump according to claim 13, characterized in that The power assembly includes a power member and a clutch member, and the power member is connected to the transmission assembly via the clutch member; When the power assembly is in the pumping stroke, the clutch is in an engaged state; when the power assembly is in the energy storage stroke, the clutch is in a disengaged state.

16. The liquid pump according to claim 13, characterized in that When the liquid pump is in the liquid suction stroke, the power assembly, the transmission assembly and the pump head assembly are in a coordinated state, so that the pump head assembly moves in conjunction with the power assembly when the power assembly is running; or The liquid pump further comprises a reset member cooperating with the pump head assembly. When the liquid pump is in the liquid suction stroke, the power assembly, the transmission assembly and the pump head assembly are in a separated state, and the pump head assembly moves under the action of the reset member.

17. A liquid pump for an oral care device, characterized in that: The liquid pump comprises: Powertrain and transmission components; and, A pump head assembly, wherein the power assembly is connected to the pump head assembly through the transmission assembly to drive the pump head assembly to absorb and pump liquid; Wherein, within a single movement cycle of the liquid pump, the liquid pump includes a suction stroke, an interval stroke and a pumping stroke. During the interval stroke, the power component stops running or the power component and the transmission component do not drive the pump head component to move.

18. The liquid pump according to claim 17, characterized in that In a single motion cycle of the liquid pump, the power assembly is sequentially powered on for a first duration and powered off for a second duration; The second duration overlaps with the interval stroke, or at least a portion of the second duration overlaps with the pumping stroke and / or the aspiration stroke.

19. A method for controlling a liquid pump of an oral care device, characterized in that: The liquid pump comprises: Powertrain and transmission components; and, A pump head assembly, wherein the power assembly is connected to the pump head assembly via a transmission assembly, so that the pump head assembly has a liquid suction stroke and a liquid pumping stroke; The control method includes: Controlling the power component to be powered on for a first time period and then powered off for a second time period; The second time duration is located after the pumping stroke and / or before the suction stroke, or at least a portion of the second time duration overlaps with the pumping stroke and / or the suction stroke.

20. The control method according to claim 19, characterized in that: The step of controlling the power component to be powered on for a first time and then powered off for a second time comprises: Controlling the power assembly to be energized for the first duration so that the pump head assembly performs at least a portion of the pumping stroke at the end of the first duration; Controlling the power assembly to be powered off for the second time period so that the pump head assembly performs at least a portion of the liquid suction stroke within the second time period, or, The power component is controlled to be powered off for the second time period, so that the pump head component performs the entire suction stroke in the initial section of the first time period.

21. The control method according to claim 20, characterized in that: The step of controlling the power assembly to be energized for the first duration so that the pump head assembly performs at least a portion of the pumping stroke at the end of the first duration includes: Controlling the power assembly to be powered on for the first duration so that the pump head assembly performs the entire pumping stroke at the end of the first duration; or, The power assembly is controlled to be energized for the first duration, so that the pump head assembly starts the pumping stroke at the end of the first duration and ends the pumping stroke at the beginning of the second duration.

22. The control method according to claim 20, characterized in that: The step of controlling the power assembly to cut off power for the second time period so that the pump head assembly performs at least a portion of the liquid suction stroke within the second time period includes: Controlling the power assembly to be powered off for the second time period so that the pump head assembly performs the entire aspiration stroke within the second time period; or, The power component is controlled to be powered off for the second time period, so that the pump head component starts the liquid suction stroke at the end of the second time period and ends the liquid suction stroke at the beginning of the first time period.

23. The control method according to claim 19, characterized in that: The step of controlling the power component to be powered on for a first time and then powered off for a second time comprises: Controlling the power assembly to be energized for the first duration, so that the pump head assembly performs at least a portion of the pumping stroke within the first duration; Controlling the power component to be powered off for the second duration; The power assembly is controlled to be energized for the first time period, so that the pump head assembly performs at least a portion of the liquid suction stroke within the first time period.

24. The control method according to claim 23, characterized in that: The two first durations have opposite energizing directions.

25. The control method according to claim 24, characterized in that: The two first durations include the first duration of forward power-on and the first duration of reverse power-on, and both the first duration of forward power-on and the first duration of reverse power-on are followed by the second duration of power-off; The pump head assembly performs the entire pumping stroke at the end of the first duration of forward energization and performs the entire suction stroke at the beginning of the first duration of reverse energization, or, The pump head assembly starts the pumping stroke at the end of the first duration of forward power supply, ends the pumping stroke within the second duration, and performs the suction stroke within the first duration of reverse power supply, or, The pump head assembly starts the pumping stroke at the end of the first time period when the power is supplied in the forward direction, and ends the pumping stroke within the second time period; the pump head assembly starts the suction stroke at the initial stage of the first time period when the power is supplied in the reverse direction, and ends the suction stroke within the second time period.

26. A method for controlling a liquid pump of an oral care device, characterized in that: The liquid pump comprises: Powertrain and transmission components; and, A pump head assembly, wherein the power assembly is connected to the pump head assembly via a transmission assembly, so that the pump head assembly has a liquid suction stroke and a liquid pumping stroke; The control method includes: The power component is controlled to drive the pump head component to alternately suck and pump liquid, and the first parameter of the power component on the sucking stroke is controlled to be smaller than the first parameter of the power component on the pumping stroke, wherein the first parameter includes at least one of power, speed, and torque.

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