CN218376761U - Water pump and have its towards tooth ware - Google Patents

Abstract

The utility model relates to an oral cavity burnisher technical field discloses a water pump and have its towards tooth ware, the water pump includes the pump body, the outlet valve, pressure regulating piece and drive arrangement, the pump body is equipped with the delivery port, the activity chamber, cushion chamber and delivery channel, the delivery port will move about chamber and cushion chamber intercommunication, delivery channel communicates in the cushion chamber, the junction of delivery channel and cushion chamber is located to the outlet valve, the outlet valve is used for from the cushion chamber to delivery channel one-way conduction liquid, along the extending direction of delivery channel, the outlet valve is at least partly staggers the setting with the delivery port, the activity chamber is located to the pressure regulating piece, and be used for adjusting the pressure in the activity chamber, so that the liquid in the activity intracavity discharges to the cushion chamber through the outlet, drive arrangement connects in the pressure regulating piece, and be used for the drive pressure regulating piece so that the pressure in the pressure regulating piece adjusts the activity intracavity. The water pressure when the liquid reaches the water outlet valve is low, the impact force on the water outlet valve is weak, the water outlet valve is prevented from being damaged, and the service life of the tooth flushing device can be prolonged.

Description

Water pump and have its towards tooth ware

Technical Field

The utility model relates to an oral cavity burnisher technical field especially relates to a water pump and have its towards tooth ware.

Background

Along with the improvement of the health consciousness of people, more and more people select the tooth flusher to clean the oral cavity, the tooth flusher pressurizes liquid at the water pump to enable the liquid to flow into the water outlet channel from the water outlet of the water pump, the liquid is sprayed out from the nozzle of the tooth flusher at a high speed through the water outlet channel to directly act on teeth and tooth gaps of a user, and the purpose of cleaning the oral cavity is achieved by using the impact acting force of the high-speed liquid.

In the related art, a water outlet valve is arranged at the joint of a water outlet of a water pump of the tooth flushing device and a water outlet channel, so that liquid flowing out of the water outlet flows to the water outlet channel by using the water outlet valve, and the liquid in the water outlet channel is prevented from flowing back to the water outlet. However, the water pressure when the liquid reaches the water outlet valve is high, the impact force on the water outlet valve is high, the water outlet valve is easily damaged, and the service life of the tooth flushing device is influenced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses water pump and have its towards tooth ware, water pressure when liquid reaches the outlet valve is less, and is weaker to the impact force of outlet valve, avoids causing the damage to the outlet valve, can prolong the life towards tooth ware.

In a first aspect, the embodiment of the utility model discloses a water pump, including the pump body, outlet valve, pressure regulating piece and drive arrangement, the pump body is equipped with delivery port, activity chamber, cushion chamber and outlet channel, the delivery port will activity chamber with the cushion chamber intercommunication, outlet channel communicate in the cushion chamber, outlet valve locates outlet channel with the junction of cushion chamber, outlet valve is used for certainly the cushion chamber to outlet channel one-way conduction liquid is followed outlet channel's extending direction, outlet valve at least part with the setting of staggering of delivery port, the pressure regulating piece is located the activity chamber, the pressure regulating piece is used for adjusting the pressure in the activity intracavity, so that liquid in the activity intracavity passes through the outlet discharges to the cushion chamber, drive arrangement connect in the pressure regulating piece, drive arrangement is used for the drive the pressure regulating piece is so that the pressure regulating piece adjusts the pressure in the activity intracavity.

As an optional implementation manner, in the embodiment of the present invention, a partition portion is disposed in the pump body, the partition portion partitions the interior of the pump body into the movable cavity and the buffer cavity, the water outlet is disposed in the partition portion, and the projection of the water outlet valve on the partition portion along the extending direction of the water outlet channel is at least partially staggered from the water outlet.

As an optional implementation manner, in an embodiment of the present invention, the partition portion is provided with a plurality of water outlets, the plurality of water outlets are arranged around the middle portion of the partition portion, and the projection of the water outlet valve on the partition portion along the extending direction of the water outlet channel is located in the middle portion of the partition portion.

As an optional implementation manner, in the embodiment of the present invention, the partition is provided with a water inlet communicated with the movable cavity, and a water inlet pipe is further provided on the periphery of the pump body, and the water inlet pipe is communicated with the water inlet.

As an optional implementation manner, in an embodiment of the present invention, the partition is provided with a plurality of water outlets, and the plurality of water outlets are disposed around the water inlet.

As an optional implementation manner, in the embodiment of the present invention, the partition is provided with a hollow protrusion portion towards one side of the buffer cavity, the hollow portion of the protrusion portion is communicated with the water inlet, one end of the water inlet pipe located in the pump body is connected to the peripheral side of the protrusion portion, and the water inlet pipe is communicated with the hollow portion of the protrusion portion.

As an optional implementation manner, in the embodiment of the present invention, the water inlet is provided with a water inlet valve, the water inlet valve is used for one-way communication of liquid from the water inlet pipe to the movable cavity, and the pressure regulating component is further used for regulating the pressure of the movable cavity, so that the movable cavity sucks liquid from the water inlet.

As an optional implementation manner, in the embodiment of the present invention, the aperture of the water inlet is greater than or equal to the aperture of the water outlet.

As an optional implementation manner, in the embodiment of the present invention, a direction from a communication position of the buffer chamber and the movable chamber to a communication position of the buffer chamber and the water outlet channel is a first direction, and an opening direction of the water inlet is opposite to the first direction.

As an optional implementation manner, in the embodiment of the present invention, along the extending direction of the water outlet channel, the cavity wall of the buffer cavity is inclined, and the aperture of the communication position of the buffer cavity and the movable cavity is greater than the aperture of the communication position of the buffer cavity and the water outlet channel.

As an optional implementation manner, in the embodiment of the present invention, the cavity wall of the buffer cavity gradually contracts from the movable cavity to the water outlet channel, so as to form a connection port communicating with the water outlet channel at one end of the movable cavity according to the principle of the buffer cavity, and the connection port is provided with the water outlet valve at the connection position of the water outlet channel.

As an optional implementation manner, in an embodiment of the present invention, the pressure regulating member includes a diaphragm, the diaphragm is disposed in the movable cavity, the driving device is connected to the diaphragm, and the driving device is configured to drive the diaphragm to elastically deform, so as to regulate the pressure intensity in the movable cavity;

or, the pressure regulating part includes the piston, the piston slidable locates the activity chamber, drive arrangement connect in the piston, drive arrangement is used for the drive the piston takes place to slide, in order to adjust the pressure in the activity chamber.

In a second aspect, an embodiment of the present invention discloses a tooth rinsing device, including the water pump of the first aspect.

Compared with the prior art, the embodiment of the utility model has following beneficial effect at least:

the embodiment of the utility model provides an in, adjust the pressure in activity chamber through drive arrangement drive pressure regulating part, pressurize the liquid in the activity intracavity and make the liquid in the activity intracavity flow to the cushion chamber through the delivery port, get into the liquid in the cushion chamber and can follow one-way conduction's outlet valve flow direction exhalant canal. Meanwhile, the water outlet valve and the water outlet are arranged in a staggered mode along the extending direction of the water outlet channel, so that liquid flowing out of the water outlet is prevented from directly impacting the water outlet valve, the liquid entering the buffer cavity from the water outlet is buffered and decompressed in the buffer cavity, the water pressure of the liquid reaching the water outlet valve can be reduced, the impact force of the liquid on the water outlet valve is reduced, the water outlet valve is prevented from being damaged, and the service life of the tooth flushing device using the water pump can be prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a water pump disclosed in an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a water pump according to an embodiment of the present invention;

fig. 3 is a schematic view of an internal structure of a pump body according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of FIG. 2 at I;

fig. 5 is a schematic structural view of a pump body provided with a partition part according to a first embodiment of the present invention;

fig. 6 is a schematic structural diagram of a driving device disclosed in an embodiment of the present invention;

fig. 7 is an exploded schematic view of a driving device according to an embodiment of the present invention;

fig. 8 is a schematic and diagrammatic view of a tooth rinsing device disclosed in the second embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meaning of these terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The utility model discloses a water pump and have its towards tooth ware, the water pressure when liquid reaches the outlet valve is less, and is weaker to the impact force of outlet valve, avoids causing the damage to the outlet valve, can prolong the life towards tooth ware.

Example one

Referring to fig. 1 to 3, for a structural schematic diagram of a water pump 100 provided in an embodiment of the present invention, the water pump 100 includes a pump body 10, a water outlet valve 20, a pressure regulating member 30 and a driving device 40, the pump body 10 is provided with a water outlet 11, a movable cavity 12, a buffer cavity 13 and a water outlet channel 14, the water outlet 11 communicates the movable cavity 12 with the buffer cavity 13, the water outlet channel 14 is communicated with the buffer cavity 13, the water outlet valve 20 is disposed at a communication position between the water outlet channel 14 and the buffer cavity 13, the water outlet valve 20 is configured to conduct liquid from the buffer cavity 13 to the water outlet channel 14 in a one-way manner, along an extending direction x of the water outlet channel 14, at least a portion of the water outlet valve 20 is staggered with the water outlet 11, the pressure regulating member 30 is disposed in the movable cavity 12, the pressure regulating member 30 is configured to regulate a pressure in the movable cavity 12, so that the liquid in the movable cavity 12 is discharged to the buffer cavity 13 through the water outlet 11, the driving device 40 is connected to the pressure regulating member 30, and the driving device 40 is configured to drive the pressure regulating member 30 so that the pressure regulating member 30 regulates a pressure in the movable cavity 12.

In the embodiment, the driving device 40 drives the pressure regulating part 30 to regulate the pressure of the movable cavity 12, so as to pressurize the liquid in the movable cavity 12 and make the liquid in the movable cavity 12 flow to the buffer cavity 13 through the water outlet 11, and the liquid entering the buffer cavity 13 can flow to the water outlet channel 14 from the one-way conducting water outlet valve 20. Meanwhile, the water outlet valve 20 and the water outlet 11 are arranged in a staggered manner along the extending direction x of the water outlet channel 14, so that the liquid flowing out of the water outlet 11 is prevented from directly impacting the water outlet valve 20, and the liquid entering the buffer cavity 13 from the water outlet 11 is buffered and decompressed in the buffer cavity 13, so that the water pressure of the liquid reaching the water outlet valve 20 can be reduced, the impact force of the liquid on the water outlet valve 20 is reduced, the water outlet valve 20 is prevented from being damaged, and the service life of the tooth flushing device using the water pump 100 can be prolonged.

In some embodiments, as shown in fig. 3 and 4, a partition 101 is disposed in the pump body 10, the partition 101 divides the interior of the pump body 10 into the movable chamber 12 and the buffer chamber 13, the water outlet 11 is disposed in the partition 101, and a projection of the outlet valve 20 on the partition 101 along the extending direction x of the water outlet channel 14 is at least partially offset from the water outlet 11. Like this, can separate the inside of the pump body 10 through partition 101, form two inner spaces, be activity chamber 12 and cushion chamber 13 respectively, and set up delivery port 11 at partition 101, make activity chamber 12 and cushion chamber 13 can communicate, the inner structure of the pump body 10 is comparatively compact, can make full use of the inner space of the pump body 10, reduces the whole volume of the pump body 10, is favorable to the miniaturized design of water pump 100. In addition, the projection of the water outlet valve 20 on the partition part 101 is at least partially staggered from the water outlet 11, so that the liquid flowing out of the water outlet 11 is prevented from directly impacting the water outlet valve 20, and the liquid entering the buffer cavity 13 from the water outlet 11 is buffered and decompressed in the buffer cavity 13, so that the water pressure when the liquid reaches the water outlet valve 20 can be reduced, the impact force of the liquid on the water outlet valve 20 is reduced, the water outlet valve 20 is prevented from being damaged, and the service life of the tooth flusher using the water pump 100 can be prolonged.

Illustratively, as shown in fig. 3 to 5, the partition 101 is provided with a plurality of water outlets 11, the plurality of water outlets 11 are arranged around the middle of the partition 101, and the projection of the water outlet valve 20 on the partition 101 along the extending direction x of the water outlet channel 14 is located in the middle of the partition 101. On one hand, the liquid in the movable cavity 12 can enter the buffer cavity 13 through the plurality of water outlets 11, so that the water outlet efficiency of the water outlets 11 is improved, and therefore the liquid as much as possible can enter the buffer cavity 13 at the same time, and the water pressure of the liquid entering the buffer cavity 13 can be improved. On the other hand, the plurality of water outlets 11 are arranged around the middle of the partition 101, and the projection of the water outlet valve 20 on the partition 101 is located in the middle of the partition 101, so that the plurality of water outlets 11 and the water outlet valve 20 can be arranged in a staggered manner, so that the liquid flowing out of the water outlets 11 is prevented from directly impacting the water outlet valve 20, the liquid entering the buffer cavity 13 from the water outlets 11 is buffered and decompressed in the buffer cavity 13, the water pressure when the liquid reaches the water outlet valve 20 can be reduced, the impact force of the liquid on the water outlet valve 20 is reduced, the water outlet valve 20 is prevented from being damaged, and the service life of the tooth flusher using the water pump 100 can be prolonged. In addition, liquid in the activity chamber 12 gets into cushion chamber 13 back through a plurality of delivery ports 11, can assemble to the position at the middle part of partition 101 from a plurality of directions, and the rivers of the liquid that get into cushion chamber 13 are comparatively even, effectively avoid producing great noise because of the torrent.

Optionally, the partition 101 is provided with a water inlet 15 communicated with the movable chamber 12, and a water inlet pipe 16 is further provided on the periphery of the pump body 10, and the water inlet pipe 16 is communicated with the water inlet 15. Therefore, liquid can be injected into the water inlet pipe 16, and the liquid can flow to the water inlet 15 of the movable cavity 12 along the water inlet pipe 16 so as to enter the movable cavity 12, so that the liquid can be supplemented into the movable cavity 12, the liquid can be supplemented into the movable cavity 12 through the water inlet pipe 16, and the efficiency is high.

In some embodiments, the water inlet 15 is disposed in the middle of the partition 101, the partition 101 is provided with a plurality of water outlets 11, and the plurality of water outlets 11 are disposed around the water inlet 15. Considering that when liquid enters the movable chamber 12 from the water inlet 15 to replenish the liquid into the movable chamber 12, the liquid remaining in the buffer chamber 13 will flow back to the movable chamber 12 through the water outlets 11, therefore, in this embodiment, the water outlets 11 are disposed around the water inlet 15, so that the liquid replenished into the movable chamber 12 from the water inlet 15 and the liquid refluxed into the movable chamber 12 from the water outlets 11 do not interfere with each other, the action of replenishing liquid into the movable chamber 12 can be performed normally, and the occurrence of a situation that the efficiency of replenishing liquid into the movable chamber 12 is reduced (when the above two flows of water interfere with each other and impact, the normal flow of the two flows of water can be affected) can be avoided.

Illustratively, one side of the partition 101 facing the buffer cavity 13 is provided with a hollow boss 17, the hollow of the boss 17 is communicated with the water inlet 15, one end of the water inlet pipe 16 located in the pump body 10 is connected to the peripheral side of the boss 17, and the water inlet pipe 16 is communicated with the hollow of the boss 17. On one hand, the water inlet pipe 16 is communicated with the hollow part of the bulge part 17, and after the liquid enters the water inlet pipe 16, the liquid can sequentially enter the movable cavity 12 through the hollow part of the bulge part 17 and the water inlet 15, so that the liquid is supplemented. On the other hand, through protruding bellying 17 of locating partition 101, the one end that inlet tube 16 is located pump body 10 is connected in the week side of bellying 17, and then the part that inlet tube 16 stretches into pump body 10 can be the straight tube, and the straight inside that runs through pump body 10 to body need not to buckle alright communicate with water inlet 15, and rivers are a straight line flow when liquid is through inlet tube 16, reduces loss of pressure, can improve the speed of rivers, reduces the noise that turns to the production because of the rivers, and then improves the replenishment efficiency of liquid.

Further, a water inlet valve 50 is arranged at the water inlet 15, the water inlet valve 50 is used for conducting liquid from the water inlet pipe 16 to the movable cavity 12 in a one-way mode, and the pressure regulating member 30 is also used for regulating the pressure of the movable cavity 12, so that the movable cavity 12 sucks the liquid from the water inlet 15. In this way, the pressure regulating element 30 is driven by the driving device 40 to regulate the pressure of the movable cavity 12, so that the movable cavity 12 can suck liquid from the water inlet 15 for replenishment, and the water inlet valve 50 can conduct the liquid from the water inlet pipe 16 to the movable cavity 12 in a single direction, so that the situation that when the driving device 40 drives the pressure regulating element 30 to regulate the pressure of the movable cavity 12, and the liquid in the movable cavity 12 flows to the buffer cavity 13 through the water outlet 11, part or all of the liquid flows from the water inlet 15 to the water inlet pipe 16 can be avoided.

In some embodiments, the aperture of the inlet 15 is greater than or equal to the aperture of the outlet 11. Thus, when the movable chamber 12 is replenished with liquid through the water inlet 15, the flow rate of the liquid is greater than or equal to the flow rate of the liquid in the movable chamber 12 entering the buffer chamber 13 from the water outlet 11, and it is always ensured that enough liquid can be used for pressurization in the movable chamber 12 and flows to the buffer chamber 13.

Further, the direction from the communication position of the buffer cavity 13 and the movable cavity 12 to the communication position of the buffer cavity 13 and the water outlet channel 14 is a first direction, and the opening direction of the water inlet 15 is opposite to the first direction. If the opening of the water inlet 15 is oriented in the same direction as the first direction, when the movable chamber 12 is replenished with the liquid through the water inlet 15, a part of the liquid may enter the buffer chamber 13 directly from the communication point between the buffer chamber 13 and the movable chamber 12 (i.e., the water outlet 11) without being pressurized through the movable chamber 12 due to inertia. Therefore, in the present embodiment, the opening direction of the water inlet 15 is opposite to the first direction, so that the situation that part of the liquid directly enters the buffer cavity 13 from the water outlet 11 without being pressurized by the movable cavity 12 due to inertia can be avoided, and the utilization rate of the liquid is improved.

Illustratively, as shown in fig. 3, along the extending direction x of the water outlet channel 14, the cavity wall of the buffer cavity 13 is disposed obliquely, and the aperture of the communication part of the buffer cavity 13 and the movable cavity 12 is larger than the aperture of the communication part of the buffer cavity 13 and the water outlet channel 14. That is, the buffer chamber 13 is substantially funnel-shaped, and a larger opening end of the funnel communicates with the movable chamber 12 and a smaller opening end communicates with the water outlet passage 14. Like this, when liquid gets into cushion chamber 13 from activity chamber 12, liquid can follow the chamber wall slope flow direction play water channel 14 of cushion chamber 13, utilize the slope of chamber wall to cushion liquid, and the bore of the intercommunication department of cushion chamber 13 and activity chamber 12 is greater than the bore of the intercommunication department of cushion chamber 13 and play water channel 14, liquid gets into cushion chamber 13's liquid measure from activity chamber 12 great, and the liquid measure that gets into play water channel 14 from cushion chamber 13 is less, the difference of liquid measure exists in cushion chamber 13, thereby cushion chamber 13 can be to the interim storage of carrying on of liquid, realize the buffering effect.

In some embodiments, as shown in fig. 3, the wall of the buffer chamber 13 gradually shrinks from the movable chamber 12 to the water outlet channel 14, so as to form a connection port 12a communicating with the water outlet channel 14 at an end of the buffer chamber 13 away from the movable chamber 12, and a water outlet valve 20 is disposed at a connection position of the connection port 12a and the water outlet channel 14. Therefore, after the liquid enters the buffer cavity 13 from the movable cavity 12, the liquid can be uniformly converged to the connecting port 12a along the cavity wall of the buffer cavity 13, and flows to the water outlet channel 14 at the connecting port 12a, the liquid is uniformly buffered in the buffer cavity 13, so that the influence on the water outlet efficiency of the water outlet channel 14 due to different pressures and flow rates when the liquid reaches the connecting port 12a can be avoided, and the situation that the position of the communicating part of the water outlet channel 14 and the buffer cavity 13 is displaced due to the impact of the liquid with different pressures and flow rates on the water outlet valve 20 is avoided.

In some embodiments, the pressure regulating member 30 includes a diaphragm disposed in the movable chamber 12, and the driving device 40 is connected to the diaphragm, and the driving device 40 is configured to drive the diaphragm to elastically deform so as to regulate the pressure in the movable chamber 12. Thus, the driving device 40 drives the diaphragm to elastically deform, when the diaphragm elastically deforms in a direction close to the driving device 40, the pressure in the movable cavity 12 decreases, at the moment, liquid can be sucked into the movable cavity 12 from the water inlet 15 to supplement the liquid, when the diaphragm elastically deforms in a direction far away from the driving device 40, the pressure in the movable cavity 12 increases, and at the moment, the liquid in the movable cavity 12 is pressurized and pumped to the buffer cavity 13 through the water outlet 11. In addition, the diaphragm is fixed relative to the movable cavity 12 in a diaphragm mode, the pressure in the movable cavity 12 is adjusted through elastic deformation of the diaphragm, and the sealing performance of the joint of the diaphragm and the movable cavity 12 is good.

In some other embodiments, the pressure-adjusting member 30 includes a piston slidably disposed in the movable chamber 12, and the driving device 40 is connected to the piston, and the driving device 40 is used for driving the piston to slide to adjust the pressure in the movable chamber 12. Thus, when the piston slides relative to the movable chamber 12 in a direction close to the driving device 40, the pressure in the movable chamber 12 decreases, and at this time, liquid can be sucked into the movable chamber 12 from the water inlet 15 to replenish the liquid, and when the piston slides relative to the movable chamber 12 in a direction away from the driving device 40, the pressure in the movable chamber 12 increases, and at this time, the liquid in the movable chamber 12 is pressurized and pumped to the buffer chamber 13 through the water outlet 11.

The embodiment provides various structures of the pressure regulating member 30, which can be selected according to actual conditions and can meet different use requirements.

Illustratively, as shown in fig. 6 and 7, the driving device 40 includes a driving part 41 and a transmission assembly 42, the transmission assembly 42 is connected to the driving part 41 and the pressure regulating member 30, and the driving part 41 is used for driving the transmission assembly 42 to drive the pressure regulating member 30 to regulate the pressure in the movable chamber 12. In this way, the driving device 40 can drive the transmission assembly 42, and the pressure regulating member 30 is driven by the transmission assembly 42 to regulate the pressure in the movable chamber 12, so that the design difficulty is low.

Alternatively, the driving unit 41 is a motor, the transmission assembly 42 includes a first gear 421, a second gear 422, a movable rod 424 and a connecting rod 423, the first gear 421 is engaged with the second gear 422, the movable rod 424 is connected to the pressure regulating member 30, one end of the connecting rod 423 is eccentrically connected to the second gear 422, and the other end of the connecting rod 423 is spherically connected to the movable rod 424. Thus, when the driving part 41 outputs a rotational motion, the driving part 41 can drive the first gear 421 to rotate, the first gear 421 is meshed with the second gear 422, the second gear 422 rotates accordingly, meanwhile, the connecting rod 423 is eccentrically connected with the second gear 422, the connecting rod 423 is connected with the spherical surface of the movable rod 424, the rotational motion of the second gear 422 can be converted into a linear motion of the movable rod 424 through the connecting rod 423, and the linear motion of the movable rod 424 drives the pressure regulating member 30 to regulate the pressure of the movable chamber 12. Through the design of switching rotational motion to linear motion, the space that driver part 41 and transmission assembly 42 occupy can be reduced, and driver part 41 and transmission assembly 42 are comparatively compact, and the design degree of difficulty is lower.

In some embodiments, the water pump 100 further includes a housing 60, the pump body 10 is at least partially disposed in the housing 60, the driving member 41 is partially disposed outside the housing 60, the driving shaft of the driving member 41 is disposed in the housing 60, the second gear 422 is rotatably coupled in the housing 60, and the movable rod 424 is slidably disposed in the housing 60. Thus, the housing 60 can protect the pump body 10, the driving member 41, and the transmission assembly 42, and prolong the service life of the water pump 100.

The embodiment of the utility model provides a water pump 100 and tooth flushing device adjusts the pressure in activity chamber 12 through drive arrangement 40 drive pressure regulating part 30, pressurizes the liquid in activity chamber 12 and makes the liquid in the activity chamber 12 flow to cushion chamber 13 through delivery port 11, and the liquid that gets into in the cushion chamber 13 can follow one-way conduction's outlet valve 20 flow to exhalant canal 14. Meanwhile, the water outlet valve 20 and the water outlet 11 are arranged in a staggered manner along the extending direction x of the water outlet channel 14, so that the liquid flowing out of the water outlet 11 is prevented from directly impacting the water outlet valve 20, and the liquid entering the buffer cavity 13 from the water outlet 11 is buffered and decompressed in the buffer cavity 13, so that the water pressure of the liquid reaching the water outlet valve 20 can be reduced, the impact of the liquid on the water outlet valve 20 is reduced, the water outlet valve 20 is prevented from being damaged, and the service life of the tooth flusher using the water pump 100 can be prolonged.

Example two

Referring to fig. 8, a schematic diagram of a structure of a dental irrigator 200 according to a second embodiment of the present invention is shown, wherein the dental irrigator 200 includes the water pump 100 according to the first embodiment.

The embodiment of the utility model provides a towards tooth ware 200, the water pressure when liquid reaches the outlet valve is less, and is weaker to the impact force of outlet valve, avoids causing the damage to the outlet valve, can prolong the life towards tooth ware 200.

The above detailed description is given to the water pump and the tooth washing device with the same disclosed in the embodiment of the present invention, and the present application describes the principle and implementation of the present invention by applying a single example, and the description of the above embodiment is only used to help understand the water pump, the tooth washing device with the same and the core idea thereof of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims (13)

1. A water pump, comprising:

the pump body is provided with a water outlet, a movable cavity, a buffer cavity and a water outlet channel, the movable cavity and the buffer cavity are communicated through the water outlet, and the water outlet channel is communicated with the buffer cavity;

the water outlet valve is arranged at the communication position of the water outlet channel and the buffer cavity, the water outlet valve is used for conducting liquid from the buffer cavity to the water outlet channel in a one-way mode, and at least part of the water outlet valve and the water outlet are arranged in a staggered mode along the extension direction of the water outlet channel;

the pressure regulating part is arranged in the movable cavity and used for regulating the pressure in the movable cavity so as to discharge liquid in the movable cavity to the buffer cavity through the water outlet; and the number of the first and second groups,

and the driving device is connected to the pressure regulating piece and is used for driving the pressure regulating piece to enable the pressure regulating piece to regulate the pressure in the movable cavity.

2. The water pump according to claim 1, wherein a partition is provided in the pump body, the partition divides the interior of the pump body into the movable cavity and the buffer cavity, the water outlet is provided in the partition, and the projection of the water outlet valve on the partition along the extending direction of the water outlet channel is at least partially staggered from the water outlet.

3. The water pump according to claim 2, wherein the partition is provided with a plurality of water outlets, the plurality of water outlets are arranged around the middle of the partition, and a projection of the water outlet valve on the partition along the extending direction of the water outlet channel is located in the middle of the partition.

4. The water pump of claim 2, wherein the partition is provided with a water inlet communicated with the movable cavity, and a water inlet pipe is further provided around the pump body, and the water inlet pipe is communicated with the water inlet.

5. The water pump according to claim 4, wherein the partition is provided with a plurality of the water outlets, which are arranged around the water inlet.

6. The water pump as claimed in claim 4, wherein the partition is provided with a hollow protrusion portion on a side facing the buffer chamber, the hollow portion of the protrusion portion is communicated with the water inlet, one end of the water inlet pipe located in the pump body is connected to the periphery of the protrusion portion, and the water inlet pipe is communicated with the hollow portion of the protrusion portion.

7. The water pump according to claim 4, wherein an inlet valve is disposed at the inlet, the inlet valve is configured to conduct liquid from the inlet tube to the movable chamber in a single direction, and the pressure regulator is further configured to regulate the pressure of the movable chamber so that the movable chamber draws liquid from the inlet.

8. The water pump of claim 4, wherein the aperture of the water inlet is greater than or equal to the aperture of the water outlet.

9. The water pump of claim 4, wherein a direction from a communication point of the buffer chamber with the movable chamber to a communication point of the buffer chamber with the water outlet passage is a first direction, and the opening of the water inlet is directed opposite to the first direction.

10. The water pump according to any one of claims 1 to 9, wherein the wall of the buffer chamber is inclined in the extending direction of the water outlet channel, and the aperture of the communication part of the buffer chamber and the movable chamber is larger than that of the communication part of the buffer chamber and the water outlet channel.

11. The water pump according to any one of claims 1 to 9, wherein the wall of the buffer chamber gradually contracts from the movable chamber to the water outlet channel, so that a connection port communicated with the water outlet channel is formed at one end of the buffer chamber far away from the movable chamber, and the water outlet valve is arranged at the connection position of the connection port and the water outlet channel.

12. The water pump according to any one of claims 1 to 9, wherein the pressure regulating member comprises a diaphragm, the diaphragm is disposed in the movable chamber, and the driving device is connected to the diaphragm and is configured to drive the diaphragm to elastically deform so as to regulate the pressure in the movable chamber;

or, the pressure regulating part includes the piston, the piston slidable locates the activity chamber, drive arrangement connect in the piston, drive arrangement is used for the drive the piston takes place to slide, in order to adjust the pressure in the activity chamber.

13. A water toothpick comprising a water pump as claimed in any one of claims 1 to 12.

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