Water pump, main machine and oral care equipment

Abstract

The utility model relates to the technical field of oral cavity cleaning tools, and discloses a water pump, a main machine and oral cavity nursing equipment, the water pump comprises a pump body, the pump body is provided with a first chamber, a second chamber, a water inlet and a water outlet, the first chamber is communicated with the second chamber, the water inlet is communicated with the first chamber, and the water outlet is communicated with the second chamber; at least part of the pressure adjusting piece is arranged in the first cavity, and the pressure adjusting piece is used for adjusting the pressure intensity of the first cavity so that the liquid can enter the first cavity or flow out of the first cavity; the pressure storage assembly is arranged in the second cavity, and the pressure storage assembly is used for storing potential energy when the liquid enters the second cavity; the valve element is arranged in the second cavity and used for controlling connection and disconnection of the second cavity and the water outlet. According to the water pump, the main machine and the oral care equipment, the valve element and the pressure storage assembly are arranged in the cavity of the pump body, the size of the water pump is small, the number of pipelines is small, and the overall size of the oral care equipment is small.

Description

Technical Field

[0001] This utility model relates to the field of oral cleaning tools, and in particular to a water pump, a main unit, and an oral care device. Background Technology

[0002] With the increasing awareness of hygiene, more and more people are choosing oral irrigators to clean their mouths. Oral irrigators work by pressurizing liquid with a water pump, causing the liquid to flow from the pump outlet into the outlet channel, and then being sprayed out at high speed from the nozzle of the oral irrigator, directly acting on the user's teeth and between teeth, using the impact force of the high-speed liquid to achieve the purpose of cleaning the mouth.

[0003] After being pressurized by a pump, the working fluid of the water flosser needs to flow into components such as the accumulator tank and solenoid valve in sequence. The accumulator tank and solenoid valve are large in size, and the water flosser has many pipelines, resulting in a large overall size of the water flosser. Utility Model Content

[0004] This utility model discloses a water pump, a main unit, and an oral care device. The pump body is equipped with a valve core and a pressure storage component, resulting in a smaller water pump size and fewer pipelines, and a smaller overall size of the oral care device.

[0005] In a first aspect, this utility model discloses a water pump for use in oral care equipment. The water pump includes: a pump body, which has a first chamber, a second chamber, an inlet, and an outlet. The first chamber and the second chamber are connected, the inlet is connected to the first chamber, and the outlet is connected to the second chamber; a pressure regulating component, which is at least partially disposed in the first chamber and is used to regulate the pressure in the first chamber to allow liquid to enter or exit the first chamber; a pressure storage component, which is disposed in the second chamber and is used to store potential energy when liquid enters the second chamber; and a valve core, which is disposed in the second chamber and is used to control the connection and disconnection between the second chamber and the outlet.

[0006] In this way, by using the valve core in the second chamber of the pump body to control the opening and closing of the water outlet, the space occupied by a complete valve body such as a separate solenoid valve or electric valve is reduced. Furthermore, by using the pressure storage component in the second chamber, the space occupied by a separate energy storage device can also be reduced, thereby reducing the size of the water pump. Moreover, there is no need to set up additional pipelines to connect the chambers, the energy storage device, the valve body, etc. The water pump has fewer pipelines, and the overall size of the oral care equipment using this pump body is smaller.

[0007] As an optional implementation, the second chamber includes a first sub-chamber and a second sub-chamber, the first sub-chamber and the second sub-chamber are in communication, the first sub-chamber and the first chamber are in communication, and the pressure storage assembly is disposed in the second sub-chamber.

[0008] In this way, the first sub-chamber is connected to the first chamber, and the pressure storage component is set in the second sub-chamber. The liquid enters the first chamber from the inlet, flows through the first sub-chamber, and then enters the pressure storage component in the second sub-chamber. The liquid is stored in the pressure storage component and stores potential energy. When the water pump needs to pump the liquid out from the outlet b, the pressure regulating component pumps the liquid in the pump body out from the outlet b. The pressure storage component applies the stored potential energy to the liquid, thereby increasing the pressure of the pumped liquid.

[0009] As an optional implementation, the water pump further includes a drive device, which includes a drive component connected to the pressure regulating member. The drive component is used to drive the pressure regulating member to adjust the pressure in the first chamber.

[0010] In this way, by driving the pressure regulating component through the drive device to adjust the pressure in the first chamber, the drive device can also drive the valve core to control the opening and closing of the outlet in the second chamber. This allows for the sharing of drive devices, reducing the number of drive devices and simplifying the pump structure, resulting in a smaller pump size. Furthermore, the drive device can coordinate the movement cycle of the pressure regulating component with the movement cycle of the valve core, enabling the coordination of one or more movement cycles of the pressure regulating component with one movement cycle of the valve core.

[0011] As an optional implementation, the driving device further includes a transmission assembly connected to the driving component, the pressure regulating component, and the valve core. The driving component drives the transmission assembly to drive the pressure regulating component to adjust the pressure in the first chamber, thereby driving the valve core to control the opening and closing of the second chamber and the outlet.

[0012] In this way, the driving component drives the transmission assembly, which in turn drives the pressure regulating component and the valve core to move, thus achieving the linkage between the pressure regulating component and the valve core.

[0013] As an optional implementation, the transmission assembly includes a cam connected to the drive component and the valve core. The drive component drives the cam to drive the valve core to control the opening and closing of the second chamber and the outlet.

[0014] In this way, the cam has a continuous side surface and a recessed notch is formed on at least one side. When the side of the valve core near the cam abuts against the non-notch position of the cam, the valve core is in the closed state. When the side of the valve core near the cam abuts against the notch position of the cam, the valve core changes its axial position due to the notch on the cam, thus changing the valve core to the open state. Therefore, when the transmission assembly includes a cam, each time the abutment position of the valve core and the cam is the notch position, the valve core can be adjusted from the closed state to the open state. Each time the abutment position of the valve core and the cam changes from the notch position to the non-notch position, the valve core can be adjusted from the open state to the closed state. Thus, the connection and disconnection between the second chamber and the outlet can be controlled by the different abutment positions of the valve core and the cam.

[0015] As an optional implementation, the driving component is a motor, and the transmission assembly includes a first gear, a second gear, a third gear, a first movable rod, and a second movable rod. The first gear is meshed with the output shaft of the driving component, the second gear is disposed on the first gear to rotate concentrically with the first gear, the third gear is meshed with the second gear, one end of the first movable rod is eccentrically connected to the first gear, the other end of the first movable rod is connected to the pressure regulating component, one end of the second movable rod is eccentrically connected to the third gear, and the other end of the second movable rod is connected to the valve core.

[0016] In this way, when the output shaft of the drive component outputs rotational motion, the drive component can drive the first gear to rotate. The second gear rotates concentrically with the first gear, causing it to rotate as well. Simultaneously, the first movable rod is eccentrically connected to the second gear, converting the rotational motion of the second gear into linear motion. This linear motion of the first movable rod drives the pressure regulating component to adjust the pressure in the first chamber. Furthermore, as the second gear rotates with the first gear, it meshes with the third gear, causing it to rotate as well. Again, the second movable rod is eccentrically connected to the third gear, converting the rotational motion of the third gear into linear motion. This linear motion of the second movable rod drives the valve core to control the opening and closing of the second chamber and the outlet, achieving linkage between the pressure regulating component and the valve core. Moreover, this design, which switches from rotational motion to linear motion, reduces the space occupied by the drive component and transmission assembly, making them more compact, reducing design difficulty, and resulting in a smaller overall pump size.

[0017] As an optional implementation, the transmission ratio between the second gear and the third gear is in the range of 2-10.

[0018] In this way, by making the number of teeth of the second gear and the third gear different, a gear ratio is formed. The gear ratio allows the second gear and the third gear to have different motion cycles when driving the first movable rod and the second movable rod to make linear motion. Thus, when the water pump is in operation, the valve core can perform one motion cycle for every one or more motion cycles of the adjusting component.

[0019] As an optional implementation, the pressure storage assembly includes a movable component and an energy storage component. The movable component is slidably disposed in the second chamber to divide the second chamber into a first space and a second space located on both sides of the movable component. The first space communicates with the second chamber, and the energy storage component is disposed on the side of the movable component facing the second space.

[0020] Thus, when the liquid flows into the second chamber, since the first space is connected to the second chamber, the liquid can push the movable component towards the second space. At this time, the movable component compresses the energy storage component, causing the energy storage component to store potential energy. When the valve core slides relative to the second chamber to connect the second chamber and the outlet, the liquid in the second chamber can be pumped out of the outlet through the second chamber. Simultaneously, the energy storage component provides potential energy to make the movable component move towards the first space and pressurize the liquid.

[0021] As an optional implementation, the energy storage device includes one or more of the following: an airbag, an elastic element, and a magnetic element.

[0022] Thus, this embodiment provides a variety of different energy storage devices, which can be selected according to the actual situation. This embodiment does not make any specific limitations on this.

[0023] As an optional implementation, the pressure storage assembly further includes a seal disposed on the side of the movable member facing the first space, and the periphery of the seal abuts against the inner wall of the second chamber.

[0024] In this way, by abutting against the inner wall of the second chamber with the circumferential side of the seal, the seal can achieve a waterproof seal between the first and second spaces, preventing liquid from flowing from the first space to the second space and causing the pressure storage component to fail.

[0025] As an optional implementation, the pressure storage assembly further includes an adjusting member, which is slidably disposed in the second space and is used to adjust the pressure in the second space.

[0026] In this way, the regulating component can be adjusted according to different liquid pressure requirements. Specifically, the regulating component moves relative to the third chamber. When the regulating component is close to the moving component, the length of the energy storage component decreases, and it has greater initial elasticity. When the pressure storage component provides potential energy to pressurize the liquid, the liquid pressure is greater. Conversely, when the length of the energy storage component increases, the liquid pressure is lower.

[0027] As an optional implementation, the pressure storage assembly includes an elastic diaphragm that seals the inner wall of the second chamber to divide the second chamber into a third space and a fourth space located on both sides of the elastic diaphragm.

[0028] In this way, when the liquid flows into the second chamber, it can compress the elastic diaphragm towards the first space, causing the diaphragm to bulge and deform towards the second space, reducing the volume of the second space and increasing the pressure within it, thereby storing potential energy. When the valve core slides relative to the second chamber to connect the second chamber and the outlet, the liquid in the second chamber can be pumped out of the outlet through the second chamber. The pressure reduction in the second space provides potential energy, and the elastic diaphragm restores its elastic deformation to pressurize the liquid.

[0029] As an optional implementation, the elastic diaphragm is made of ethylene propylene rubber. It is understood that the elastic diaphragm can also be made of other elastic materials, such as hydrogenated nitrile rubber, tetrafluoroethylene rubber, chloroprene rubber, etc.

[0030] As an optional implementation, in this embodiment of the present invention, the water pump further includes a first one-way valve, which is disposed between the first chamber and the second chamber, and is used to allow the liquid in the first chamber to flow unidirectionally to the second chamber.

[0031] In this way, by setting the first one-way valve, the liquid can flow in one direction, thus preventing the liquid from flowing back from the second chamber to the first chamber.

[0032] As an optional implementation, in this embodiment of the present invention, the first one-way valve is at least one of a tongue valve, a cap valve, a convex umbrella valve, or a concave umbrella valve.

[0033] Thus, this embodiment provides a variety of different types of first check valves, which can be selected according to the actual situation. This embodiment does not make any specific limitations on this.

[0034] As an optional implementation, in this embodiment of the present invention, the pump body is further provided with a third chamber, the third chamber being connected to the first chamber, and the water inlet being connected to the third chamber;

[0035] The water pump also includes a second one-way valve, which is located between the third chamber and the first chamber. The second one-way valve is used to allow the liquid in the third chamber to flow unidirectionally to the first chamber.

[0036] In this way, by setting up a third chamber connected to the first chamber, the liquid entering through the inlet can converge in the third chamber and then flow from the third chamber to the first chamber, thus enabling the first chamber to draw liquid in from the inlet. Furthermore, by setting up a second one-way valve, unidirectional flow of the liquid is achieved, preventing liquid from flowing back from the first chamber to the third chamber.

[0037] As an optional implementation, in this embodiment of the present invention, the second one-way valve is at least one of a tongue valve, a cap valve, a convex umbrella valve, or a concave umbrella valve.

[0038] Thus, this embodiment provides a variety of different types of second check valves, which can be selected according to actual conditions. This embodiment does not make any specific limitations on this.

[0039] As an optional implementation, in this embodiment of the present invention, the pump body is further provided with a fourth chamber, which is connected between the first chamber and the second chamber.

[0040] In this way, by setting up a fourth chamber that connects the first chamber and the second chamber, the liquid can converge in the fourth chamber after entering from the first chamber, and then flow from the fourth chamber to the second chamber, thus realizing the flow of liquid from the first chamber to the second chamber.

[0041] As an optional implementation, in this embodiment of the present invention, the pressure regulating component includes a diaphragm disposed in the first chamber, and the diaphragm is used to undergo elastic deformation to adjust the pressure in the first chamber;

[0042] Alternatively, the pressure regulating component includes a piston slidably disposed in the first chamber, the piston being used to slide relative to the first chamber to adjust the pressure within the first chamber.

[0043] In this way, the diaphragm is driven by a drive device to undergo elastic deformation. When the diaphragm deforms elastically towards the drive device, the pressure in the first chamber decreases, allowing liquid to be drawn into the first chamber from the inlet to replenish it. When the diaphragm deforms elastically away from the drive device, the pressure in the first chamber increases, pressurizing the liquid and pumping it to the second and / or third chambers. Furthermore, by using a diaphragm, which is fixed relative to the first chamber and adjusts the pressure within the first chamber through its own elastic deformation, the sealing at the connection between the diaphragm and the first chamber is excellent.

[0044] The piston is driven by a drive device. When the piston slides towards the drive device relative to the first chamber, the pressure in the first chamber decreases. At this time, liquid can be drawn into the first chamber from the inlet to replenish the liquid. When the piston slides away from the drive device relative to the first chamber, the pressure in the first chamber increases. At this time, the liquid in the first chamber is pressurized and pumped to the second chamber and / or the third chamber.

[0045] Secondly, this utility model embodiment discloses a host computer, including the water pump of the first aspect.

[0046] Thus, the second type of main unit has all the beneficial effects of the first type of water pump, which will not be elaborated here.

[0047] Thirdly, this utility model discloses an oral care device, including a water tank and a main unit, wherein the water tank is disposed on the main unit and the water inlet of the water pump is connected to the interior of the water tank.

[0048] Thus, the oral care equipment of the third aspect has all the beneficial effects of the main unit of the second aspect, which will not be elaborated here. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of a water pump structure disclosed in Embodiment 1 of this utility model;

[0051] Figure 2 This is a cross-sectional structural diagram of a pump body disclosed in Embodiment 1 of this utility model;

[0052] Figure 3 This is a schematic diagram of the internal structure of a pump body disclosed in Embodiment 1 of this utility model;

[0053] Figure 4 This is a schematic diagram of the structure of a driving device disclosed in Embodiment 1 of this utility model;

[0054] Figure 5 This is a schematic diagram of another driving device disclosed in Embodiment 1 of this utility model;

[0055] Figure 6 This is an exploded structural diagram of a water pump disclosed in Embodiment 1 of this utility model;

[0056] Figure 7This is a cross-sectional structural schematic diagram of a pressure storage component disclosed in Embodiment 1 of this utility model;

[0057] Figure 8 This is a cross-sectional structural schematic diagram of another pressure storage group disclosed in Embodiment 1 of this utility model;

[0058] Figure 9 yes Figure 8 Enlarged structural diagram at point I;

[0059] Figure 10 This is a simplified schematic diagram of the host structure disclosed in Embodiment 2 of this utility model;

[0060] Figure 11 This is a simplified structural diagram of the oral care device disclosed in Embodiment 3 of this utility model.

[0061] Explanation of main figure symbols

[0062] 100. Water pump; 10. Pump body; 10a. Inlet; 10b. Outlet; 101. First chamber; 102. Second chamber; 102a. First space; 102b. Second space; 102c. Third space; 1021. First sub-chamber; 1022. Second sub-chamber; 103. Third chamber; 104. Fourth chamber; 20. Pressure regulating component; 30. Pressure storage assembly; 31. Housing; 32. Elastic diaphragm; 33. Active 34. Moving part; 35. Energy storage part; 36. Sealing part; 40. Adjusting part; 51. Valve core; 52. First check valve; 53. Second check valve; 60. Drive device; 61. Drive component; 62. Transmission assembly; 621. First gear; 622. Second gear; 623. Third gear; 624. First moving rod; 625. Second moving rod; 626. Cam; 200. Main unit; 300. Oral care equipment; 301. Water tank. Detailed Implementation

[0063] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0064] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0065] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0066] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0067] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0068] This utility model discloses a water pump, a main unit, and an oral care device. The pump body is equipped with a valve core and a pressure storage component, resulting in a smaller water pump size and fewer pipelines, and a smaller overall size of the oral care device.

[0069] Example 1

[0070] Please see Figures 1 to 3This is a schematic diagram of the structure of a water pump 100 provided in Embodiment 1 of this utility model. The water pump 100 is applied to an oral care device. The pump body has a first chamber, a second chamber, an inlet, and an outlet. The first chamber and the second chamber are connected. The inlet is connected to the first chamber, and the outlet is connected to the second chamber. A pressure regulating component is at least partially disposed in the first chamber. The pressure regulating component is used to adjust the pressure of the first chamber so that liquid enters or flows out of the first chamber. A pressure storage component is disposed in the second chamber. The pressure storage component is used to store potential energy when liquid enters the second chamber. A valve core is disposed in the second chamber. The valve core is used to control the opening and closing of the second chamber and the outlet.

[0071] In this embodiment, a pressure regulating component 20 is provided in the first chamber 101 to reduce the pressure in the first chamber 101. At this time, the first chamber 101 can draw in liquid from the inlet 10a. When the pressure regulating component 20 increases the pressure in the first chamber 101, the liquid in the first chamber 101 is pressurized and flows to the second chamber 102 which is connected to the first chamber 101. The second chamber 102 is slidably provided with a valve core 40. When the valve core 40 slides relative to the second chamber 102 so that the second chamber 102 and the outlet 10b are not connected, the liquid drawn in and pressurized by the first chamber 101 can flow to the second chamber 102, thereby enabling the pressure storage component 30 located in the second chamber 102 to store potential energy. When the valve core 40 slides relative to the second chamber 102 to connect the second chamber 102 and the outlet 10b, the liquid in the second chamber 102 can be pumped out from the outlet 10b, and the potential energy provided by the pressure storage component 30 can pressurize the liquid.

[0072] Furthermore, this embodiment also utilizes the second chamber 102 of the pump body 10 to set the valve core 40 to control the opening and closing of the water outlet 10b, reducing the space occupied by separately setting up complete valve bodies such as solenoid valves and electric valves. In addition, by using the second chamber 102 to set up the pressure storage component 30, the space occupied by separately setting up the energy storage device can also be reduced, thereby reducing the volume of the water pump 100. Moreover, there is no need to set up additional pipelines to connect the chambers, the energy storage device, the valve body, etc. The water pump 100 has fewer pipelines, and the overall volume of the oral care device using this pump body 10 is smaller.

[0073] In this embodiment, the action of regulating member 36 in drawing liquid into the first chamber 101 from the inlet 10a and pressurizing the liquid to flow into the second chamber 102 can be considered as one cycle of the regulating member 36. Similarly, the action of valve core 40 sliding relative to the second chamber 102 to control the opening and closing of the second chamber 102 and the outlet 10b can be considered as one cycle of the valve core 40. When the water pump 100 is operating, for every one or more cycles of the regulating member 36, the valve core 40 can perform one cycle. For example, the regulating member 36 performs one cycle, and the valve core 40 performs one cycle; or the regulating member 36 performs two cycles, and the valve core 40 performs one cycle; or the regulating member 36 performs three cycles, and the valve core 40 performs one cycle, and so on. This embodiment will not provide a complete list of these examples.

[0074] In some embodiments, the second chamber 102 includes a first sub-chamber 1021 and a second sub-chamber 1022, which are connected. Exemplarily, the first sub-chamber 1021 and the second sub-chamber 1022 are different spaces within the same chamber, and are interconnected. Alternatively, the second chamber 102 can be divided into two independent sub-chambers, the first and second sub-chambers 1021 and 1022, separated by an inner wall. A communication channel exists between the first and second sub-chambers 1021 and 1022. It is understood that a valve can be installed at the location of the communication channel to control its opening and closing.

[0075] For example, the first sub-chamber 1021 is connected to the first chamber 101, and the pressure storage component 30 is disposed in the second sub-chamber 1022. The liquid enters the first chamber 101 from the inlet, flows through the first sub-chamber 1021, and then enters the pressure storage component 30 in the second sub-chamber 1022. The liquid is stored in the pressure storage component 30 and stores potential energy. When the water pump 100 needs to pump the liquid out from the outlet 10b, the pressure regulating component pumps the liquid in the pump body 10 out from the outlet 10b. The pressure storage component 30 applies the stored potential energy to the liquid, thereby increasing the pressure of the pumped liquid.

[0076] In some embodiments, such as Figure 3As shown, the water pump 100 also includes a drive device 60, which includes a drive component 61 connected to a pressure regulating component 20. The drive component 61 drives the pressure regulating component 20 to adjust the pressure in the first chamber 101, and drives the valve core 40 to control the opening and closing of the second chamber 102 and the outlet 10b. Thus, by driving the pressure regulating component 20 to adjust the pressure in the first chamber 101, the drive component 61 can simultaneously drive the valve core 40 to control the opening and closing of the outlet 10b in the second chamber 102, achieving shared use of the drive component 61, reducing the number of drive components 61, thereby simplifying the structure of the water pump 100 and making the water pump 100 smaller. Furthermore, the drive component 61 can coordinate the movement cycle of the pressure regulating component 20 with the movement cycle of the valve core 40, achieving coordination between one or more movement cycles of the pressure regulating component 20 and one movement cycle of the valve core 40.

[0077] For example, the drive device 60 further includes a transmission assembly 62, which is connected to the drive component 61, the pressure regulating component 20, and the valve core 40. The drive component 61 drives the transmission assembly 62 to drive the pressure regulating component 20 to adjust the pressure in the first chamber 101, and also drives the transmission assembly 62 to drive the valve core 40 to control the opening and closing of the second chamber 102 and the outlet 10b. In this way, by driving the transmission assembly 62 through the drive component 61, the transmission assembly 62 can drive the pressure regulating component 20 and the valve core 40 to move, realizing the linkage between the pressure regulating component 20 and the valve core 40.

[0078] In some embodiments, the transmission assembly 62 includes a cam 626, which is connected to a drive component 61 and a valve core 40. The drive component 61 drives the cam 626 to rotate. For example, the cam 626 has a continuous side surface on its periphery and a recessed notch is formed on at least one side. When the side of the valve core 40 near the cam 626 abuts against the non-notch position of the cam 626, the valve core 40 is in a closed state. When the side of the valve core 40 near the cam 626 abuts against the notch position of the cam 626, the valve core 40 is in a closed state due to the pressure on the cam 626. The valve core 40 changes its axial position due to the notch, thus changing to the open state. Therefore, when the transmission assembly 62 includes the cam 626, each time the contact position between the valve core 40 and the cam 626 is at the notch position, the valve core 40 can be adjusted from the closed state to the open state. Each time the contact position between the valve core 40 and the cam 626 changes from the notch position to the non-notch position, the valve core 40 can be adjusted from the open state to the closed state. Thus, the connection and disconnection between the second chamber and the outlet can be controlled by the different contact positions between the valve core 40 and the cam 626.

[0079] In some embodiments, such as Figure 3 and Figure 4As shown, the drive component 61 is a motor, and the transmission assembly 62 includes a first gear 621, a second gear 622, a third gear 623, a first movable rod 624, and a second movable rod 625. The first gear 621 is meshed with the output shaft of the drive component 61. The second gear 622 is disposed on the first gear 621 to rotate concentrically with the first gear 621. The third gear 623 is meshed with the second gear 622. One end of the first movable rod 624 is eccentrically connected to the first gear 621, and the other end of the first movable rod 624 is connected to the pressure regulating component 20. One end of the second movable rod 625 is eccentrically connected to the third gear 623, and the other end of the second movable rod 625 is connected to the valve core 40. Thus, when the output shaft of the drive component 61 outputs rotational motion, the drive component 61 can drive the first gear 621 to rotate. The second gear 622 rotates concentrically with the first gear 621, and the second gear 622 rotates accordingly. At the same time, the first movable rod 624 is eccentrically connected to the second gear 622. The rotational motion of the second gear 622 can be converted into linear motion of the first movable rod 624. The linear motion of the first movable rod 624 drives the pressure regulating component 20 to adjust the pressure of the first chamber 101. Furthermore, as the second gear 622 rotates with the first gear 621, it meshes with the third gear 623, causing the third gear 623 to rotate as well. Simultaneously, the second movable rod 625 is eccentrically connected to the third gear 623, converting the rotational motion of the third gear 623 into linear motion. This linear motion drives the valve core 40 to control the opening and closing of the second chamber 102 and the outlet 10b, thus achieving linkage between the pressure regulating component 20 and the valve core 40. Moreover, this design, which switches from rotational to linear motion, reduces the space occupied by the drive component 61 and the transmission assembly 62, making them more compact and easier to design, resulting in a smaller overall size of the water pump 100.

[0080] In this embodiment, an eccentric connection is used to convert the rotational motion of the gear into the linear motion of the movable rod. For example, the first movable rod 624 is eccentrically connected to the first gear 621, and the second movable rod 625 is eccentrically connected to the third gear 623.

[0081] In some other embodiments, the rotational motion of the gear can be converted into the linear motion of the movable rod using a cam 626 or similar means. That is, the first movable rod 624 and the first gear 621 can be connected using a cam 626, and the second movable rod 625 and the third gear 623 can be connected using a cam. For example, as... Figure 5 As shown, the third gear 623 is provided with a cam 626, which is connected to the second movable rod 625. When the cam 626 rotates with the third gear 623, it can drive the second movable rod 625 to move linearly.

[0082] For example, the second gear 622 and the third gear 623 have different numbers of teeth. By making the number of teeth on the second gear 622 and the third gear 623 different, a gear ratio is formed. This gear ratio allows the second gear 622 and the third gear 623 to have different motion cycles when driving the first movable rod 624 and the second movable rod 625 in linear motion, respectively. Thus, when the water pump 100 is operating, for every one or more motion cycles of the adjusting member 36, the valve core 40 can perform one motion cycle accordingly.

[0083] In this embodiment, the transmission ratio between the second gear 622 and the third gear 623 ranges from 2 to 10. If the transmission ratio is 2, the third gear 623 rotates once for every two rotations of the second gear 622. If the transmission ratio is 10, the third gear 623 rotates once for every ten rotations of the second gear 622. It can be understood that the transmission ratio between the second gear 622 and the third gear 623 can be 2, 3, 4, 5, 6, 7, 8, 9, or 10. Furthermore, the transmission ratio between the second gear 622 and the third gear 623 can also be a decimal, such as 2.5 or 4.2, etc., and is not limited here.

[0084] In some embodiments, such as Figure 8 and Figure 9 As shown, the pressure storage assembly 30 includes a movable member 33 and an energy storage member 34. The movable member 33 is slidably disposed in the second chamber 102 to divide the second chamber 102 into a first space 102a and a second space 102b located on both sides of the movable member 33. The first space 102a is connected to the third chamber 103. The energy storage member 34 is disposed on the side of the movable member 33 facing the second space 102b. Thus, when liquid flows into the third chamber 103, since the first space 102a is connected to the third chamber 103, the liquid can push the movable member 33 towards the second space 102b. At this time, the movable member 33 compresses the energy storage member 34, causing the energy storage member 34 to store potential energy. When the valve core 40 slides relative to the second chamber 102 to connect the second chamber 102 and the outlet 10b, the liquid in the third chamber 103 can be pumped out from the outlet 10b through the second chamber 102. At the same time, the energy storage device 34 provides potential energy to make the movable device 33 move toward the first space 102a and pressurize the liquid.

[0085] For example, the pressure storage assembly 30 also includes a seal 35, which is disposed on the side of the movable member 33 facing the first space 102a, and the peripheral side of the seal 35 abuts against the inner wall of the second chamber 102. In this way, by the peripheral side of the seal 35 abutting against the inner wall of the second chamber 102, the seal 35 can achieve a waterproof seal between the first space 102a and the second space 102b, preventing liquid from flowing from the first space 102a to the second space 102b and causing the pressure storage assembly 30 to fail.

[0086] Optionally, the energy storage component 34 includes one or more of an airbag, an elastic component, and a magnetic component. Thus, this embodiment provides a variety of different types of energy storage components 34, which can be selected according to actual conditions, and this embodiment does not make a specific limitation.

[0087] In some embodiments, the pressure storage assembly 30 further includes an adjustment member 36, which is slidably disposed in the second space 102b and is used to adjust the pressure of the second space 102b.

[0088] For example, the energy storage component 34 is a spring, with one end connected to the sealing component and the other end connected to the adjusting component 36. The adjusting component 36 is used to move relative to the second space 102b to adjust the length of the energy storage component 34, thereby changing the degree of spring compression. In this way, the adjusting component 36 can be adjusted according to different liquid pressure requirements. Specifically, by moving the adjusting component 36 relative to the second space 102b, when the adjusting component 36 is close to the movable component 33, the length of the energy storage component 34 decreases, resulting in greater initial elasticity. When the pressure storage assembly 30 provides potential energy to pressurize the liquid, the liquid pressure is higher. Conversely, when the length of the energy storage component 34 increases, the liquid pressure is lower.

[0089] As an optional implementation method, such as Figure 6 and Figure 7 As shown, the pressure storage assembly 30 includes an elastic diaphragm 32 disposed within the second chamber 102, dividing the second chamber 102 into a third space 102c and a fourth space 102d located on either side of the elastic diaphragm 32. Thus, when liquid flows into the second chamber 102, the liquid can compress the side of the elastic diaphragm 32 facing the third space 102c, causing the elastic diaphragm 32 to bulge and deform towards the fourth space 102d, reducing the volume of the fourth space 102d and increasing the pressure within the fourth space 102d, thereby storing potential energy. When the valve core 40 slides relative to the second chamber 102 to connect the second chamber 102 and the outlet 10b, the liquid in the second chamber 102 can be pumped out from the outlet 10b. The pressure decrease in the fourth space 102d provides potential energy, and the elastic diaphragm 32 recovers its elastic deformation to pressurize the liquid.

[0090] The pressure of the liquid flowing from the third space 102c to the outlet 10b can be adjusted by changing the cross-sectional size of the elastic diaphragm 32 in the second chamber 102. The smaller the cross-sectional size, the greater the liquid pressure, and vice versa.

[0091] For example, the elastic diaphragm 32 is made of ethylene propylene rubber. It is understood that the elastic diaphragm 32 can also be made of other elastic materials, such as hydrogenated nitrile rubber, tetrafluoroethylene rubber, chloroprene rubber, etc.

[0092] As an optional implementation method, combined with Figure 3 As shown, the water pump 100 also includes a first check valve 51. The first chamber 101 and the second chamber 102 are connected in sequence. The first check valve 51 is located between the first chamber 101 and the second chamber 102. The first check valve 51 is used to allow the liquid in the first chamber 101 to flow unidirectionally to the second chamber 102. In this way, by setting the first check valve 51, the unidirectional flow of the liquid is achieved, and the backflow of liquid from the second chamber 102 to the first chamber 101 can be prevented.

[0093] Optionally, the first check valve 51 is at least one of a tongue valve, a cap valve, a convex umbrella valve, or a concave umbrella valve. Thus, this embodiment provides a variety of different types of first check valves 51, which can be selected according to actual conditions, and this embodiment does not make a specific limitation in this regard.

[0094] In some embodiments, such as Figure 2 and Figure 3 As shown, the pump body 10 also includes a third chamber 103, which is connected to the first chamber 101. The inlet 10a is also connected to the third chamber 103. The pump 100 further includes a second check valve 52, located between the third chamber 103 and the first chamber 101. The second check valve 52 allows the liquid in the third chamber 103 to flow unidirectionally to the first chamber 101. Thus, by connecting the third chamber 103 to the first chamber 101, the liquid entering the third chamber 103 from the inlet 10a can converge in the third chamber 103 and then flow from the third chamber 103 to the first chamber 101, enabling the first chamber 101 to draw liquid from the inlet 10a. Furthermore, by providing the second check valve 52, unidirectional liquid flow is achieved, preventing liquid from flowing back from the first chamber 101 to the third chamber 103.

[0095] Optionally, the second check valve 52 is at least one of a tongue valve, a cap valve, a convex umbrella valve, or a concave umbrella valve. Thus, this embodiment provides a variety of different types of second check valves 52, which can be selected according to actual conditions, and this embodiment does not make a specific limitation in this regard.

[0096] In some embodiments, the pump body 10 is further provided with a fourth chamber 104, which is connected between the first chamber 101 and the second chamber 102. Thus, by providing the fourth chamber 104 between the first chamber 101 and the second chamber 102, liquid entering the fourth chamber 104 from the first chamber 101 can converge in the fourth chamber 104 and then flow from the fourth chamber 104 to the second chamber 102, thereby realizing the flow of liquid from the first chamber 101 to the second chamber 102.

[0097] In this embodiment, as Figure 3 and Figure 4 As shown, the pressure regulating component 20 includes a piston slidably disposed in the first chamber 101. The piston slides relative to the first chamber 101 to adjust the pressure inside the first chamber 101. Thus, when the piston is driven by the driving device 60, and slides relative to the first chamber 101 towards the driving device 60, the pressure inside the first chamber 101 decreases. At this time, liquid can be drawn into the first chamber 101 from the inlet 10a to replenish the liquid. When the piston slides relative to the first chamber 101 away from the driving device 60, the pressure inside the first chamber 101 increases. At this time, the liquid in the first chamber 101 is pressurized and pumped to the second chamber 102.

[0098] In some other embodiments, the pressure regulating member 20 includes a diaphragm disposed in the first chamber 101. The diaphragm is used to undergo elastic deformation to regulate the pressure within the first chamber 101. Thus, the diaphragm is driven to undergo elastic deformation by the driving device 60. When the diaphragm elastically deforms towards the driving device 60, the pressure within the first chamber 101 decreases, allowing liquid to be drawn into the first chamber 101 from the inlet 10a to replenish the liquid. When the diaphragm elastically deforms away from the driving device 60, the pressure within the first chamber 101 increases, pressurizing the liquid within the first chamber 101 and pumping it to the second chamber 102 and / or the third chamber 103. Furthermore, by employing a diaphragm, which is fixed relative to the first chamber 101 and regulates the pressure within the first chamber 101 through its own elastic deformation, the sealing at the connection between the diaphragm and the first chamber 101 is relatively good.

[0099] This utility model provides a water pump 100. A pressure regulating component 20 is provided in the first chamber 101. The pressure regulating component 20 reduces the pressure in the first chamber 101. At this time, the first chamber 101 can draw in liquid from the inlet 10a. When the pressure regulating component 20 increases the pressure in the first chamber 101, the liquid in the first chamber 101 is pressurized and flows to the second chamber 102 and / or the second chamber 102 which is connected to the first chamber 101. The second chamber 102 is slidably provided with a valve core 40. When the valve core 40 slides relative to the second chamber 102 so that the second chamber 102 and the outlet 10b are not connected, the liquid drawn in and pressurized by the first chamber 101 can flow to the third chamber 103, so that the pressure storage component 30 located in the third chamber 103 can store potential energy. When the valve core 40 slides relative to the second chamber 102 to connect the second chamber 102 and the outlet 10b, the liquid in the third chamber 103 can be pumped out from the outlet 10b through the second chamber 102, and the potential energy provided by the pressure storage component 30 can pressurize the liquid.

[0100] Furthermore, this embodiment also utilizes the second chamber 102 of the pump body 10 to set the valve core 40 to control the opening and closing of the water outlet 10b, reducing the space occupied by separately setting up complete valve bodies such as solenoid valves and electric valves. In addition, the use of the third chamber 103 to set up the pressure storage component 30 can also reduce the space occupied by separately setting up the energy storage device, thereby reducing the volume of the water pump 100. Moreover, there is no need to set up additional pipelines to connect the chambers, the energy storage device, the valve body, etc. The water pump 100 has fewer pipelines, and the overall volume of the oral care device using this pump body 10 is smaller.

[0101] Example 2

[0102] Please see Figure 10 This is a simplified structural diagram of a host 200 provided in Embodiment 2 of the present utility model. The host 200 includes the water pump 100 of Embodiment 1.

[0103] Embodiment 2 of this utility model provides a host 200, which has a relatively small overall size.

[0104] Example 3

[0105] Please see Figure 11 This is a simplified structural diagram of an oral care device 300 provided in Embodiment 3 of the present utility model. The oral care device 300 includes a water tank 301 and a main unit 200 as in Embodiment 2. The water tank 301 is located in the main unit 200, and the water inlet of the water pump is connected to the inside of the water tank 301.

[0106] This utility model provides an oral care device 300 in a second embodiment, which has a small overall size.

[0107] The above provides a detailed description of a water pump, main unit, and oral care device disclosed in the embodiments of this utility model. This article uses specific examples to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the water pump, main unit, and oral care device of this utility model and its core idea. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A water pump used in oral care equipment, characterized in that, The water pump includes: The pump body is provided with a first chamber, a second chamber, an inlet and an outlet. The first chamber and the second chamber are connected, the inlet is connected to the first chamber and the outlet is connected to the second chamber. A pressure regulating component is at least partially disposed in the first chamber, and the pressure regulating component is used to adjust the pressure of the first chamber so that liquid enters or flows out of the first chamber; A pressure storage assembly is disposed in the second chamber and is used to store potential energy when liquid enters the second chamber. A valve core is disposed in the second chamber and is used to control the opening and closing of the second chamber and the outlet.

2. The water pump according to claim 1, characterized in that, The second chamber includes a first sub-chamber and a second sub-chamber, the first sub-chamber and the second sub-chamber are connected, the first sub-chamber and the first chamber are connected, and the pressure storage component is located in the second sub-chamber.

3. The water pump according to claim 1 or 2, characterized in that, The water pump also includes a drive device, which includes a drive component connected to the pressure regulating component. The drive component is used to drive the pressure regulating component to adjust the pressure in the first chamber.

4. The water pump according to claim 3, characterized in that, The driving device further includes a transmission assembly, which is connected to the driving component, the pressure regulating component, and the valve core. The driving component is used to drive the transmission assembly to drive the pressure regulating component to adjust the pressure in the first chamber, so as to drive the valve core to control the opening and closing of the second chamber and the outlet.

5. The water pump according to claim 4, characterized in that, The driving component is a motor, and the transmission assembly includes a first gear, a second gear, a third gear, a first movable rod, and a second movable rod. The first gear is meshed with the output shaft of the driving component, the second gear is disposed on the first gear to rotate concentrically with the first gear, the third gear is meshed with the second gear, one end of the first movable rod is eccentrically connected to the first gear, the other end of the first movable rod is connected to the pressure regulating component, one end of the second movable rod is eccentrically connected to the third gear, and the other end of the second movable rod is connected to the valve core.

6. The water pump according to claim 5, characterized in that, The transmission ratio between the second gear and the third gear is in the range of 2-10.

7. The water pump according to claim 1 or 2, characterized in that, The pressure storage assembly includes a movable component and an energy storage component. The movable component is slidably disposed in the second chamber to divide the second chamber into a first space and a second space located on both sides of the movable component. The first space is connected to the second chamber, and the energy storage component is disposed on the side of the movable component facing the second space.

8. The water pump according to claim 7, characterized in that, The energy storage component includes one or more of the following: an airbag, an elastic component, and a magnetic component.

9. The water pump according to claim 7, characterized in that, The pressure storage assembly further includes a seal, which is disposed on the side of the movable member facing the first space, and the periphery of the seal abuts against the inner wall of the second chamber.

10. The water pump according to claim 7, characterized in that, The pressure storage assembly further includes an adjusting member, which is slidably disposed in the second space and is used to adjust the pressure in the second space.

11. The water pump according to claim 1 or 2, characterized in that, The pressure storage assembly includes an elastic diaphragm that seals the inner wall of the second chamber to divide the second chamber into a third space and a fourth space located on both sides of the elastic diaphragm.

12. The water pump according to claim 11, characterized in that, The elastic diaphragm is made of ethylene propylene rubber.

13. The water pump according to any one of claims 1 or 2, characterized in that, The water pump also includes a first check valve, which is located between the first chamber and the second chamber.

14. The water pump according to claim 13, characterized in that, The first check valve includes at least one of a tongue valve, a cap valve, a convex umbrella valve, or a concave umbrella valve.

15. The water pump according to any one of claims 1 or 2, characterized in that, The pump body is also provided with a third chamber, which is connected to the first chamber, and the water inlet is connected to the third chamber; The water pump also includes a second one-way valve, which is located between the third chamber and the first chamber. The second one-way valve is used to allow the liquid in the third chamber to flow unidirectionally to the first chamber.

16. The water pump according to any one of claims 1 or 2, characterized in that, The pressure regulating component includes a diaphragm disposed in the first chamber, and the diaphragm is used to undergo elastic deformation to regulate the pressure inside the first chamber; or, The pressure regulating component includes a piston, which is slidably disposed in the first chamber. The piston is used to slide relative to the first chamber to adjust the pressure inside the first chamber.

17. A host computer, characterized in that, Including the water pump as described in any one of claims 1 to 16.

18. An oral care device, characterized in that, It includes a water tank and a main unit as described in claim 17, wherein the water tank is disposed in the main unit, and the water inlet of the water pump is connected to the interior of the water tank.

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