Water pump, main machine and oral irrigator

Abstract

The utility model relates to the technical field of oral cavity cleaning tools, and discloses a water pump, a main machine and a water irrigator, the water pump comprises a pump body, a pressure regulating piece and a pressurizing piece, the pump body is provided with a movable cavity, a water inlet and a water outlet, the water inlet and the water outlet are communicated with the movable cavity, the pressure regulating piece is arranged in the movable cavity, and the pressurizing piece is arranged in the movable cavity. The pressure regulating part is used for reducing the pressure intensity in the movable cavity to enable the movable cavity to suck liquid from the water inlet and is used for increasing the pressure intensity in the movable cavity to enable the liquid in the movable cavity to be discharged through the water outlet, and the pressurizing part is provided with a containing cavity with a variable volume; the volume of the containing cavity can be changed between a first volume and a second volume, the first volume is smaller than the second volume, and the containing cavity is communicated with the movable cavity. By adopting the water pump, the main machine and the oral irrigator, the liquid loss can be reduced, and the water-saving capacity of the water pump is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oral cleaning tools, in particular to a water pump, a main unit and a water flosser. Background Art

[0002] In the related art, a water flosser usually sucks liquid from a water tank through a water pump and pressurizes the liquid, so that the liquid is ejected from the nozzle of the water flosser at high speed and directly acts on the user's teeth and gaps between teeth, using the impact force of the high-speed liquid to achieve the purpose of cleaning the oral cavity.

[0003] However, as the water pump pressurizes the liquid, some of it is ejected from the nozzle of the irrigator before reaching a high pressure. This liquid has a weak impact, resulting in a poor cleaning effect and a loss of liquid, which is a waste. Therefore, given the limited capacity of the water tank, there is an urgent need to solve the problem of how to reduce liquid loss and improve the water-saving ability of the water pump. Utility Model Content

[0004] The embodiment of the utility model discloses a water pump, a main unit and a water flosser, which can reduce liquid loss and improve the water-saving capability of the water pump.

[0005] In the first aspect, an embodiment of the utility model discloses a water pump, comprising a pump body, a pressure regulating member and a booster member, the pump body being provided with an active chamber, a water inlet and a water outlet, the water inlet and the water outlet being connected to the active chamber, the pressure regulating member being provided in the active chamber, the pressure regulating member being used to reduce the pressure in the active chamber so that the active chamber can suck in liquid from the water inlet, and to increase the pressure in the active chamber so that the liquid in the active chamber can be discharged through the water outlet, the booster member having a variable-volume accommodating chamber, the volume of the accommodating chamber being variable between a first volume and a second volume, the first volume being smaller than the second volume, and the accommodating chamber being connected to the active chamber.

[0006] In this way, by setting a pressure regulating piece in the active chamber of the pump body, the pressure in the active chamber can be reduced by using the pressure regulating piece. At this time, the active chamber can suck in liquid from the water inlet of the pump body, and when the pressure regulating piece increases the pressure in the active chamber, the liquid in the active chamber is pressurized and flows to the water outlet of the pump body, thereby discharging the pressurized liquid from the water outlet.

[0007] At the same time, by providing a booster component, the accommodating chamber of the booster component is connected to the active chamber. In this way, when the pressure regulating component increases the pressure in the active chamber to pressurize the liquid in the active chamber and flow it to the water outlet of the pump body, some of the liquid enters the accommodating chamber of the booster component. At this time, utilizing the variable volume feature of the accommodating chamber, the volume of the accommodating chamber can gradually increase from a first volume to a maximum of a second volume during the process of accommodating the liquid, thereby achieving the storage of pressurized liquid in the accommodating chamber. Moreover, as the liquid is pressurized to a higher water pressure, the liquid stored in the accommodating chamber can flow out of the accommodating chamber and be discharged from the water outlet. This ensures that as much liquid as possible is discharged from the water outlet for effective cleaning only after being pressurized to a higher water pressure, which can reduce liquid loss and improve the water-saving ability of the water pump.

[0008] As an optional implementation, in an embodiment of the present utility model, the volume difference between the second volume and the first volume is a, the single-cycle drainage volume of the water pump is b, and a≥0.5b.

[0009] In this way, due to the larger volume difference a between the second volume and the first volume, the booster cavity can store more pressurized liquid during the single-cycle drainage process of the water pump. Storing and discharging more pressurized liquid in the cavity can improve the boosting effect of the booster.

[0010] As an optional implementation, in an embodiment of the present utility model, when the volume of the accommodating chamber increases from the first volume, the pressure of the active chamber is p1, the maximum water pressure of the water pump in a single cycle is p2, and p2>p1.

[0011] In this way, when the volume of the accommodating chamber increases from the first volume, the pressure of the active chamber can gradually increase from p1 to p2, and reach the maximum water pressure at p2. The greater the difference between the two, the greater the amount of liquid that enters the container and increases the volume of the accommodating chamber from the first volume to the second volume during this process, the more obvious the pressurization effect is, and the water-saving effect can be further improved.

[0012] As an optional implementation, in an embodiment of the present utility model, when the volume of the accommodating chamber is at the second volume, the water pressure of the active chamber is p3, the maximum water pressure of the water pump in a single cycle is p2, and p2>p3.

[0013] In this way, when the volume of the accommodating chamber is at the second volume, that is, the amount of liquid in the accommodating chamber is at its maximum value, at this time, the water pressure p3 in the active chamber is still less than the maximum water pressure p2. Then, when the pressure regulating component continues to increase the pressure in the active chamber, the liquid in the accommodating chamber is discharged, which can jointly increase the water pressure to p2, so that the process of the water pump being at a higher water pressure in a single cycle is prolonged, and the amount of liquid discharged from the outlet at a higher water pressure can be effectively increased, which has a better water-saving effect.

[0014] As an optional embodiment, in an embodiment of the present utility model, the booster includes a connecting portion and a deformation portion, the connecting portion is provided on the pump body, the connecting portion is provided with a through hole, the through hole is connected to the active chamber and the accommodating chamber, the deformation portion is provided with the accommodating chamber, and the deformation portion can be deformed to change the volume of the accommodating chamber.

[0015] Thus, on the one hand, the connection portion is provided on the pump body, and the deformable portion can be connected to the pump body through the connection portion, and the through hole of the connection portion is connected to the active cavity and the accommodating cavity, so that the accommodating cavity of the deformable portion can be connected to the active cavity of the pump body. On the other hand, the deformation of the deformable portion can change the volume of the accommodating cavity, so that the accommodating cavity can store pressurized liquid and discharge the liquid to the water outlet.

[0016] As an optional implementation, in an embodiment of the present utility model, the water pump further includes a pressing member, which is pressed against a side of the connecting portion facing away from the pump body.

[0017] In this way, the pressing member is pressed against the side of the connecting portion facing away from the pump body, so that the connection between the connecting member and the pump body can fit tightly, thereby achieving sealing and waterproofing.

[0018] As an optional implementation, in an embodiment of the present utility model, the material of the pressurizing component is soft rubber.

[0019] In this way, the booster is made of soft rubber, which has strong elastic deformation capabilities. This allows the accommodating chamber to change between a first volume and a second volume, and the volume difference between the second volume and the first volume can be designed to be large. Furthermore, the booster has a long service life and can avoid repeated elastic deformation that may cause deformation performance degradation or cracking.

[0020] As an optional implementation, in an embodiment of the present utility model, the water pump further includes a pre-compression member, the pre-compression member abuts against the booster member, and the pre-compression member is used to provide pre-pressure so that the volume of the accommodating chamber is at the first volume.

[0021] In this way, the pre-compression member provides pre-pressure to act on the boosting member, so that the volume of the boosting member is at the first volume. When liquid enters the accommodating chamber from the active chamber, the volume of the accommodating chamber increases from the first volume to the second volume as the liquid increases. At this time, the boosting member undergoes elastic deformation and squeezes the pre-compression member. The force exerted by the boosting member on the pre-compression member is balanced with the pre-pressure provided by the pre-compression member. When the liquid in the accommodating chamber is discharged toward the water outlet, the pre-pressure provided by the pre-compression member is greater, which can reduce the volume of the accommodating chamber from the second volume to the first volume. At this time, the pre-pressure of the pre-compression member can also pressurize the liquid, further increasing the water pressure.

[0022] As an optional implementation, in an embodiment of the present utility model, the pre-pressing member includes an elastic member and / or an airbag.

[0023] Thus, if the pre-compression member includes an elastic member, the pre-compression force can include the elastic force of the elastic member. If the pre-compression member includes an airbag, the pre-compression force can be provided by the volume change of the airbag. Different types of pre-compression members can be selected according to actual conditions, and this embodiment does not specifically limit this.

[0024] As an optional embodiment, in an embodiment of the present utility model, the water pump further includes a cover body, which is provided on the pump body, the booster and the pre-pressurizing member are located inside the cover body, and the side of the pre-pressurizing member facing away from the booster is abutted against the cover body.

[0025] In this manner, on the one hand, the booster and pre-compression members are housed within the housing by the housing, thereby protecting the booster and pre-compression members from damage caused by external forces. On the other hand, since the side of the pre-compression member facing away from the booster member abuts against the housing, the pre-compression member can be reset when liquid is discharged from the accommodating chamber, thereby restoring the volume of the accommodating chamber to the first volume.

[0026] As an optional implementation, in an embodiment of the present utility model, the water pump further includes a gasket, and the gasket is arranged between the boosting component and the pre-pressing component.

[0027] In this way, by setting a gasket between the booster and the pre-pressurized part, the contact area between the pre-pressurized part and the booster is increased by using the gasket, thereby reducing the local pressure, and protecting the pre-pressurized part and the booster to avoid damage caused by excessive local pressure.

[0028] As an optional implementation, in an embodiment of the present utility model, the pressure regulating member includes a diaphragm, the diaphragm is provided in the active cavity, and the diaphragm is used to undergo elastic deformation to adjust the pressure in the active cavity;

[0029] Alternatively, the pressure regulating member includes a piston, which is slidably disposed in the active chamber, and is used to slide relative to the active chamber to regulate the pressure in the active chamber.

[0030] In this way, when the pressure-regulating element includes a diaphragm, the diaphragm undergoes elastic deformation. When the diaphragm elastically deforms away from the water outlet, the pressure within the active chamber decreases, allowing liquid to be drawn from the water inlet into the active chamber to replenish the liquid. When the diaphragm elastically deforms toward the water outlet, the liquid within the active chamber is pressurized and pumped to the receiving chamber and the water outlet, and the liquid within the receiving chamber can ultimately be discharged from the water outlet. Furthermore, with a diaphragm, the diaphragm is fixed relative to the active chamber, regulating the pressure within the active chamber through its own elastic deformation, resulting in improved sealing between the diaphragm and the active chamber. When the pressure-regulating element includes a piston, the piston slides away from the water outlet, reducing the pressure within the active chamber. At this time, liquid can be drawn from the water inlet into the active chamber to replenish the liquid. When the piston slides toward the water outlet, the pressure within the active chamber increases. At this time, the liquid within the active chamber is pressurized and pumped to the receiving chamber and the water outlet, and the liquid within the receiving chamber can ultimately be discharged from the water outlet.

[0031] In a second aspect, an embodiment of the present invention discloses a host, comprising the water pump of the first aspect.

[0032] In this way, the main unit of the second aspect has all the beneficial effects of the water pump of the first aspect, which will not be described in detail here.

[0033] In a third aspect, an embodiment of the present utility model discloses a water flosser, comprising a water tank and the main unit of the second aspect, wherein the water tank is arranged on the main unit, and the water inlet of the water pump is connected to the interior of the water tank.

[0034] In this way, the oral irrigator of the third aspect has all the beneficial effects of the main unit of the second aspect, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this technical field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 This is a structural diagram of a water pump disclosed in Example 1 of the present utility model;

[0037] Figure 2 This is a schematic cross-sectional view of a water pump disclosed in Example 1 of the present utility model;

[0038] Figure 3 This is a partial structural diagram of another water pump disclosed in the first embodiment of the present utility model;

[0039] Figure 4This is a simplified structural diagram of the host disclosed in Example 2 of the present utility model;

[0040] Figure 5 This is a simplified structural diagram of the water flosser disclosed in Example 3 of the present utility model.

[0041] Description of main reference numerals

[0042] 100. Water pump; 10. Pump body; 10a. Active cavity; 10b. Water inlet; 10c. Water outlet; 11. Pressure regulating component; 12. Pressurizing component; 12a. Accommodating cavity; 121. Connecting part; 121a. Through hole; 122. Deformation part; 13. Pressing part; 14. Pre-pressing part; 15. Cover body; 16. Gasket; 200. Main unit; 300. Water flosser; 301. Water tank. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] In this utility model, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the utility model and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0045] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0046] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0047] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0048] The utility model discloses a water pump, a main unit and a water flosser, which can reduce liquid loss and improve the water-saving capability of the water pump.

[0049] Example 1

[0050] See also Figure 1 and Figure 2 , is a structural schematic diagram of a water pump 100 provided in Example 1 of the present utility model, the water pump 100 includes a pump body 10, a pressure regulating member 11 and a booster 12, the pump body 10 is provided with an active chamber 10a, a water inlet 10b and a water outlet 10c, the water inlet 10b and the water outlet 10c are connected to the active chamber 10a, the pressure regulating member 11 is provided in the active chamber 10a, the pressure regulating member 11 is used to reduce the pressure in the active chamber 10a so that the active chamber 10a sucks liquid from the water inlet 10b, and to increase the pressure in the active chamber 10a so that the liquid in the active chamber 10a is discharged through the water outlet 10c, the booster 12 has a variable-volume accommodating chamber 12a, the volume of the accommodating chamber 12a can change between a first volume and a second volume, the first volume is smaller than the second volume, and the accommodating chamber 12a is connected to the active chamber 10a.

[0051] In this embodiment, a pressure regulating member 11 is provided in the active chamber 10a of the pump body 10, and the pressure regulating member 11 is used to reduce the pressure in the active chamber 10a. At this time, the active chamber 10a can suck liquid from the water inlet 10b of the pump body 10, and when the pressure regulating member 11 increases the pressure in the active chamber 10a, the liquid in the active chamber 10a is pressurized and flows to the water outlet 10c of the pump body 10, thereby discharging the pressurized liquid from the water outlet 10c.

[0052] At the same time, by providing a booster 12, the accommodating chamber 12a of the booster 12 is connected to the active chamber 10a. In this way, when the pressure regulating member 11 increases the pressure in the active chamber 10a to pressurize the liquid in the active chamber 10a and flow it to the water outlet 10c of the pump body 10, some of the liquid enters the accommodating chamber 12a of the booster 12. At this time, utilizing the variable volume feature of the accommodating chamber 12a, the volume of the accommodating chamber 12a can gradually increase from a first volume to a maximum of a second volume during the process of accommodating the liquid, thereby achieving the storage of pressurized liquid in the accommodating chamber 12a. Moreover, as the liquid is pressurized to a higher water pressure, the liquid stored in the accommodating chamber 12a can flow out of the accommodating chamber 12a and be discharged from the water outlet 10c, so that as much liquid as possible is discharged from the water outlet 10c for effective cleaning after being pressurized to a higher water pressure, which can reduce liquid loss and improve the water-saving capability of the water pump 100.

[0053] For example, the volume difference between the second volume and the first volume is a, the single-cycle drainage volume of the water pump 100 is b, and a ≥ 0.5b. Thus, due to the larger volume difference a between the second volume and the first volume, the accommodating chamber 12a of the boosting component 12 can store more pressurized liquid during a single-cycle drainage process of the water pump 100. Storing and discharging more pressurized liquid within the accommodating chamber 12a can improve the boosting effect of the boosting component 12. Furthermore, the volume difference a between the second volume and the first volume can be 0.5b, 0.6b, 0.7b, 0.8b, 0.9b, b, 1.1b, etc., and this embodiment does not impose any specific limitations on this.

[0054] A single cycle of the water pump 100 refers to the cycle in which the pressure regulating element 11 decreases and increases the pressure in the active chamber 10a. Specifically, the water pump 100 draws liquid from the water inlet into the receiving chamber 12a, pressurizes the liquid in the receiving chamber 12a, and discharges it from the water outlet 10c.

[0055] Furthermore, when the pressure regulating member 11 increases the pressure in the active chamber 10a, the pressure in the active chamber 10a gradually increases. During this process, some liquid flows from the active chamber 10a to the water outlet 10c and the accommodating chamber 12a. The liquid entering the accommodating chamber 12a can achieve water conservation during this drainage phase. When the pressure regulating member 11 reduces the pressure in the active chamber 10a, i.e., during the water absorption process, some liquid remains in the accommodating chamber 12a and can flow back to the accommodating chamber 12a, thereby achieving water conservation during this absorption phase.

[0056] In some embodiments, when the volume of the accommodating chamber 12a increases from the first volume, the pressure in the active chamber 10a is p1, and the maximum water pressure in a single cycle of the water pump 100 is p2, where p2>p1. Thus, as the volume of the accommodating chamber 12a increases from the first volume, the pressure in the active chamber 10a can gradually increase from p1 to p2, reaching the maximum water pressure at p2. The greater the difference between the two, the greater the amount of liquid that enters the container, increasing the volume of the accommodating chamber 12a from the first volume to the second volume, resulting in a more significant pressurization effect, which can further enhance water conservation.

[0057] For example, when the volume of the accommodating chamber 12a is at the second volume, the water pressure in the active chamber 10a is p3, and the maximum water pressure in a single cycle of the water pump 100 is p2, where p2>p3. Thus, when the volume of the accommodating chamber 12a is at the second volume, i.e., the amount of liquid in the accommodating chamber 12a is at its maximum, and the water pressure p3 in the active chamber 10a is still less than the maximum water pressure p2, as the pressure regulating member 11 continues to increase the pressure in the active chamber 10a, the liquid in the accommodating chamber 12a is discharged, which can collectively increase the water pressure to p2. This prolongs the period of time during which the water pump 100 is at a higher water pressure in a single cycle, effectively increasing the amount of liquid discharged from the water outlet 10c at a higher water pressure, and achieving a better water-saving effect.

[0058] In some embodiments, such as Figure 3 As shown, the pressurizing element 12 includes a connecting portion 121 and a deformable portion 122. The connecting portion 121 is provided on the pump body 10 and has a through hole 121a that connects the active chamber 10a and the accommodating chamber 12a. The deformable portion 122 has the accommodating chamber 12a and can deform to change the volume of the accommodating chamber 12a. Thus, on the one hand, by having the connecting portion 121 provided on the pump body 10, the deformable portion 122 can be connected to the pump body 10 via the connecting portion 121. The through hole 121a of the connecting portion 121 connects the active chamber 10a and the accommodating chamber 12a, thereby allowing the accommodating chamber 12a of the deformable portion 122 to communicate with the active chamber 10a of the pump body 10. On the other hand, the deformation of the deformable portion 122 allows the volume of the accommodating chamber 12a to change, thereby allowing the accommodating chamber 12a to store pressurized liquid and discharge the liquid to the water outlet 10c.

[0059] For example, Figure 2 As shown, the water pump 100 further includes a pressing member 13, which is pressed against the side of the connecting portion 121 facing away from the pump body 10. In this way, by pressing the pressing member 13 against the side of the connecting portion 121 facing away from the pump body 10, the connection between the connecting member and the pump body 10 can be tightly fitted, achieving a sealed and waterproof effect.

[0060] Optionally, the pressure member 12 is made of soft rubber. This material offers strong elastic deformation, allowing the accommodating chamber 12a to vary between a first volume and a second volume, while also allowing for a larger volume difference between the second volume and the first volume. Furthermore, the pressure member 12 has a longer service life, preventing repeated elastic deformation that could lead to performance degradation or cracking.

[0061] In some embodiments, such as Figure 3 As shown, the water pump 100 further includes a pre-compression element 14, which abuts the booster element 12 and is used to provide pre-compression to maintain the volume of the accommodating chamber 12a at a first volume. Thus, the pre-compression provided by the pre-compression element 14 acts on the booster element 12, maintaining the volume of the booster element 12 at the first volume. When liquid enters the accommodating chamber 12a from the active chamber 10a, the volume of the accommodating chamber 12a increases from the first volume to the second volume as the liquid increases. At this time, the booster element 12 elastically deforms and squeezes the pre-compression element 14. The force exerted by the booster element 12 on the pre-compression element 14 is balanced with the pre-compression provided by the pre-compression element 14. When the liquid in the accommodating chamber 12a is discharged toward the water outlet 10c, the pre-compression provided by the pre-compression element 14 is greater, causing the volume of the accommodating chamber 12a to decrease from the second volume to the first volume. At this time, the pre-compression provided by the pre-compression element 14 can also pressurize the liquid, further increasing the water pressure.

[0062] Optionally, the pre-compression member 14 includes an elastic member and / or an airbag. If the pre-compression member 14 includes an elastic member, the pre-compression force can include the elastic force of the elastic member. If the pre-compression member 14 includes an airbag, the pre-compression force can be provided by the volume change of the airbag. Different types of pre-compression members 14 can be selected based on actual circumstances and are not specifically limited in this embodiment.

[0063] In some embodiments, the water pump 100 further includes a cover 15, which is disposed on the pump body 10. The booster 12 and pre-loaded component 14 are located within the cover 15, and the side of the pre-loaded component 14 facing away from the booster 12 abuts against the inside of the cover 15. Thus, on the one hand, the booster 12 and pre-loaded component 14 are shielded within the cover 15 by the cover 15, thereby protecting the booster 12 and pre-loaded component 14 from damage caused by external forces. On the other hand, by abutting the side of the pre-loaded component 14 facing away from the booster 12 against the cover 15, the pre-loaded component 14 can be reset when liquid is discharged from the accommodating chamber 12a, thereby maintaining the volume of the accommodating chamber 12a at the first volume.

[0064] Optionally, the pressing member 13 and the cover body 15 may be the same component or different components, or the pressing member 13 may be a part of the cover body 15. This can be selected according to actual conditions, and this embodiment does not impose any specific limitation on this.

[0065] In some embodiments, the water pump 100 further includes a gasket 16, which is disposed between the booster 12 and the pre-load member 14. Thus, by disposing the gasket 16 between the booster 12 and the pre-load member 14, the gasket 16 increases the contact area between the pre-load member 14 and the booster 12, thereby reducing local pressure and protecting the pre-load member 14 and the booster 12 from damage caused by excessive local pressure.

[0066] As an optional embodiment, the pressure regulating member 11 includes a diaphragm, which is arranged in the active chamber 10a. The diaphragm is used to undergo elastic deformation to adjust the pressure in the active chamber 10a. In this way, the diaphragm undergoes elastic deformation. When the diaphragm undergoes elastic deformation in a direction away from the water outlet 10c, the pressure in the active chamber 10a decreases. At this time, liquid can be sucked into the active chamber 10a from the water inlet 10b to replenish the liquid. When the diaphragm undergoes elastic deformation in a direction close to the water outlet 10c, the liquid in the active chamber 10a is pressurized and pumped to the accommodating chamber 12a and the water outlet 10c, and the liquid in the accommodating chamber 12a can eventually be discharged from the water outlet 10c. In addition, by adopting the diaphragm method, the diaphragm is fixed relative to the active chamber 10a, and the pressure in the active chamber 10a is adjusted by its own elastic deformation. The sealing performance of the connection between the diaphragm and the active chamber 10a is better.

[0067] As another optional embodiment, the pressure regulating member 11 includes a piston slidably disposed in the active chamber 10a. The piston is configured to slide relative to the active chamber 10a to adjust the pressure within the active chamber 10a. Thus, as the piston slides away from the water outlet 10c, the pressure within the active chamber 10a decreases. At this time, liquid can be drawn into the active chamber 10a from the water inlet 10b to replenish the liquid. When the piston slides toward the water outlet 10c, the pressure within the active chamber 10a increases. At this time, the liquid within the active chamber 10a is pressurized and pumped to the accommodating chamber 12a and the water outlet 10c. The liquid within the accommodating chamber 12a can ultimately be discharged from the water outlet 10c.

[0068] Embodiment 1 of the present invention provides a water pump 100, which provides a pressure regulating member 11 in the active chamber 10a of the pump body 10, and utilizes the pressure regulating member 11 to reduce the pressure in the active chamber 10a. At this time, the active chamber 10a can suck in liquid from the water inlet 10b of the pump body 10, and when the pressure regulating member 11 increases the pressure in the active chamber 10a, the liquid in the active chamber 10a is pressurized and flows to the water outlet 10c of the pump body 10, thereby discharging the pressurized liquid from the water outlet 10c.

[0069] At the same time, by providing a booster 12, the accommodating chamber 12a of the booster 12 is connected to the active chamber 10a. In this way, when the pressure regulating member 11 increases the pressure in the active chamber 10a to pressurize the liquid in the active chamber 10a and flow it to the water outlet 10c of the pump body 10, some of the liquid enters the accommodating chamber 12a of the booster 12. At this time, utilizing the variable volume feature of the accommodating chamber 12a, the volume of the accommodating chamber 12a can gradually increase from a first volume to a maximum of a second volume during the process of accommodating the liquid, thereby achieving the storage of pressurized liquid in the accommodating chamber 12a. Moreover, as the liquid is pressurized to a higher water pressure, the liquid stored in the accommodating chamber 12a can flow out of the accommodating chamber 12a and be discharged from the water outlet 10c, so that as much liquid as possible is discharged from the water outlet 10c for effective cleaning after being pressurized to a higher water pressure, which can reduce liquid loss and improve the water-saving capability of the water pump 100.

[0070] Example 2

[0071] See also Figure 4 , is a schematic structural diagram of a host 200 provided in the second embodiment of the present invention, and the host 200 includes the water pump 100 of the first embodiment.

[0072] The second embodiment of the present invention provides a host 200 that can reduce liquid loss, and its water pump 100 has better water-saving capability.

[0073] Example 3

[0074] See also Figure 5 , is a structural diagram of a water flosser 300 provided in Example 3 of the present utility model. The water flosser 300 includes a water tank 301 and the host 200 of Example 2. The water tank 301 is arranged in the host 200, and the water inlet of the water pump is connected to the inside of the water tank 301.

[0075] The third embodiment of the present invention provides a water flosser 300 with good water-saving capability and can be equipped with a smaller water tank to achieve a miniaturized design.

[0076] The above is a detailed introduction to a water pump, a main unit and a water flosser disclosed in the embodiments of the present invention. This article uses individual examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the water pump, the main unit and the water flosser of the present invention and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A water pump, characterized in that: include: A pump body, the pump body being provided with an active cavity, a water inlet and a water outlet, the water inlet and the water outlet being connected to the active cavity; a pressure regulating member disposed in the active chamber, the pressure regulating member being used to reduce the pressure in the active chamber so that the active chamber can absorb liquid from the water inlet, and to increase the pressure in the active chamber so that the liquid in the active chamber can be discharged through the water outlet; as well as The booster has a variable-volume accommodating chamber, the volume of which can be changed between a first volume and a second volume, the first volume being smaller than the second volume, and the accommodating chamber being connected to the active chamber.

2. The water pump according to claim 1, characterized in that The volume difference between the second volume and the first volume is a, the single-cycle drainage volume of the water pump is b, and a≥0.5b.

3. The water pump according to claim 1, characterized in that When the volume of the accommodating chamber increases from the first volume, the pressure of the active chamber is p1, the maximum water pressure of the water pump in a single cycle is p2, and p2>p1.

4. The water pump according to claim 1, characterized in that When the volume of the accommodating chamber is at the second volume, the water pressure of the active chamber is p3, the maximum water pressure of the water pump in a single cycle is p2, and p2>p3.

5. The water pump according to claim 1, characterized in that The booster includes a connecting portion and a deforming portion. The connecting portion is provided on the pump body. The connecting portion is provided with a through hole. The through hole is connected to the active chamber and the accommodating chamber. The deforming portion is provided with the accommodating chamber and can be deformed to change the volume of the accommodating chamber.

6. The water pump according to claim 5, characterized in that The water pump further comprises a pressing member, which is pressed against a side of the connecting portion facing away from the pump body.

7. The water pump according to any one of claims 1 to 6, characterized in that: The material of the pressurizing component is soft rubber.

8. The water pump according to any one of claims 1 to 6, characterized in that: The water pump further includes a pre-pressing member, the pre-pressing member abuts against the pressurizing member, and the pre-pressing member is used to provide pre-pressure so that the volume of the accommodating chamber is at the first volume.

9. The water pump according to claim 8, characterized in that The pre-pressing member includes an elastic member and / or an air bag.

10. The water pump according to claim 8, characterized in that The water pump further includes a cover body, which is provided on the pump body. The pressurizing component and the pre-pressurizing component are located in the cover body, and a side of the pre-pressurizing component facing away from the pressurizing component abuts against the cover body.

11. The water pump according to claim 8, characterized in that The water pump further includes a gasket, which is arranged between the pressurizing component and the pre-pressurizing component.

12. The water pump according to any one of claims 1 to 6, characterized in that: The pressure regulating member includes a diaphragm, which is arranged in the active cavity and is used to undergo elastic deformation to adjust the pressure in the active cavity; Alternatively, the pressure regulating member includes a piston, which is slidably disposed in the active chamber, and is used to slide relative to the active chamber to regulate the pressure in the active chamber.

13. A host, characterized in that: Comprising the water pump according to any one of claims 1 to 12.

14. A water flosser, characterized in that: It comprises a water tank and the host as claimed in claim 13, wherein the water tank is arranged on the host, and the water inlet of the water pump is connected to the inside of the water tank.

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