CN217908050U

CN217908050U - Tooth flushing device power device and tooth flushing device

Info

Publication number: CN217908050U
Application number: CN202221972334.1U
Authority: CN
Inventors: 刘仕华
Original assignee: Guangzhou Stars Pulse Co Ltd
Current assignee: Guangzhou Stars Pulse Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-29
Anticipated expiration: 2032-07-28

Abstract

The utility model discloses a dash tooth ware power device and dash tooth ware, it includes the motor to dash tooth ware power device, drive assembly, adapting unit and pump water subassembly, drive assembly includes the same first gear of axis direction and second gear, first gear connection is in the motor, the outer peripheral face of first gear is equipped with first skewed tooth, the outer peripheral face of second gear is equipped with the second skewed tooth, second skewed tooth and first skewed tooth meshing are connected, adapting unit is connected with the second gear, pump water subassembly includes diaphragm pump and movable part, movable part's one end is connected with adapting unit, movable part's the other end and diaphragm pump are connected. The embodiment of the utility model provides a towards tooth ware power device and towards tooth ware can reduce the axial effort that first gear was applyed on the second gear to can effectively solve the problem that the second gear takes place to warp easily and shift, with the degree of meshing that improves first skewed tooth and second skewed tooth, noise reduction improves the leakproofness of pump water subassembly.

Description

Tooth flushing device power device and tooth flushing device

Technical Field

The utility model relates to an oral cavity burnisher technical field especially relates to a dash tooth ware power device and dash tooth ware.

Background

The tooth flushing device is an auxiliary tool for cleaning oral cavity, and is a tool for cleaning teeth and tooth gaps by utilizing pulse water flow impact mode, and is mainly formed from water pump and spray head, and is characterized by that it utilizes the water flow with a certain pressure to flush teeth, and the water flow can reach the position where the toothbrush can not reach, and can deeply flush periphery, top portion and inner surface of teeth to remove residue and harmful bacteria.

In the related art, the water pump of the tooth flushing device generally comprises a motor, a first gear and a second gear, wherein the first gear is in transmission connection with the motor, the axes of the first gear and the second gear are vertical, the outer peripheral surface of the first gear is provided with first teeth, second teeth meshed with the first teeth are arranged on the disc surface of the second gear, when the motor drives the first gear to rotate so as to drive the second gear to rotate, the first gear can apply large axial acting force to the disc surface of the second gear, so that the second gear is easy to deform and shift, after long-time operation, the meshing degree of the first teeth and the second teeth becomes poor, large noise is easy to generate, and the transmission efficiency can also be reduced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses towards tooth ware power device and towards tooth ware can reduce the axial effort that first gear was applyed on the second gear, improves the degree of engagement of first skewed tooth and second skewed tooth to noise reduction.

In order to achieve the above objects, in a first aspect, the present invention discloses a power device for a tooth rinsing device, comprising:

a motor;

the transmission assembly comprises a first gear and a second gear which are the same in axial direction, the first gear is connected with the motor, first helical teeth are arranged on the peripheral surface of the first gear, second helical teeth are arranged on the peripheral surface of the second gear, and the second helical teeth are meshed with the first helical teeth;

a connecting member connected to the second gear; and

and the water pumping assembly comprises a diaphragm pump and a movable part, one end of the movable part is connected with the connecting part, and the other end of the movable part is connected with the diaphragm pump.

As an alternative implementation manner, in an embodiment of the first aspect of the present invention, an angle between the extending direction of the first helical tooth and the axial direction of the first gear is α,15 ° ≦ α ≦ 35 °, an angle between the extending direction of the second helical tooth and the axial direction of the second gear is β,15 ° ≦ β ≦ 35 °; and/or

The number of the first helical teeth is 10-16, and the number of the second helical teeth is 40-64.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, an end face of the second gear is provided with a protrusion, the center of the protrusion is located outside an axis of the second gear, the connecting component is sleeved on the periphery of the protrusion, and the protrusion and the motor are respectively located on two sides of the second gear along an axis direction thereof.

As an alternative, in an embodiment of the first aspect of the present invention, the movable member is connected to the connecting member through a rotating shaft, so that the movable member is rotatably connected to the connecting member.

As an optional implementation way, in the embodiment of the first aspect of the present invention, the movable part is a first connection end with the one end that adapting unit connects, adapting unit with the one end that the movable part connects is the second connection end, the second connection end with connect through the pivot between the first connection end, the terminal surface of first connection end is at least partly for the convex arc face, the second connection end is equipped with the recess, at least some internal face of recess be with convex arc face assorted concave arc face, concave arc face with convex arc face swing joint.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the movement range of the connecting part moving along the first direction is 2mm to 4mm, and the first direction is configured to: from the first gear in the direction of the second gear.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the tooth washing device power device further includes a housing, the housing is provided with a holding cavity having an opening, the motor is located outside the holding cavity, the diaphragm pump is located at an opening of the holding cavity, and a pump water cavity of the diaphragm pump is provided with a water inlet water path, a water inlet of the water inlet water path and the motor are located at different sides of the housing, the first gear, the second gear, the connecting part are all located in the holding cavity.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the tooth rinsing device power device further includes a housing, an inner wall surface of the housing is provided with a first sliding slot and a second sliding slot, the first sliding slot and the second sliding slot are disposed opposite to each other, and the first sliding slot and the second sliding slot are both disposed to extend along a first direction, the first direction is configured to be: a direction perpendicular to the plane of the axis of the second gear;

the movable component is connected with the connecting component through a rotating shaft, one end of the rotating shaft is inserted into the first sliding groove and can slide relative to the first sliding groove, and the other end of the rotating shaft is inserted into the second sliding groove and can slide relative to the second sliding groove.

As an alternative embodiment, in an embodiment of the first aspect of the present invention, the motor and the connecting part are located on both sides of the second gear in the axis direction thereof.

In a second aspect, the present invention discloses a tooth-washing device, which comprises a power supply part and a power device of the tooth-washing device as described in the first aspect, wherein the power supply part is electrically connected to the motor.

As an optional implementation manner, in an embodiment of the second aspect of the present invention, the power supply component is disposed on one side of the motor, and the power supply component and the second gear are disposed on the same side of the motor.

As an optional implementation manner, in an embodiment of the second aspect of the present invention, the tooth irrigator further includes a circuit board, the circuit board and the power supply part are disposed on opposite sides of the tooth irrigator power device, and the circuit board is electrically connected to the power supply part and the motor; and/or

Towards tooth ware still includes the organism, the power supply part with towards tooth ware power device all set up in the organism, just the power supply part is close to the lateral part setting of organism, the lateral part of organism is equipped with the inlet tube, the inlet tube with the setting of staggering of motor.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the embodiment of the utility model provides a towards tooth ware power device and towards tooth ware, axis direction through injecing first gear is the same with the axis direction of second gear, and set up first skewed tooth in the outer peripheral face of first gear, and set up the second skewed tooth in the outer peripheral face of second gear, connect to set up the transmission between first gear and the second gear into the external toothing and connect, can reduce first gear transmission like this and connect for the effort of the axis direction of second gear edge second gear, thereby effectively solve the problem that the second gear takes place to warp and shift easily, and then improve the degree of engagement of first skewed tooth and second skewed tooth, with the noise reduction. Simultaneously through adopting the diaphragm pump to realize the pump water with the reciprocating motion who utilizes the diaphragm pump, because this diaphragm pump has better waterproof leakproofness, and need not usually when the pump water with the inner wall friction in pump water cavity, avoid producing the noise, further noise reduction, simultaneously can also make tooth ware power device has good waterproof leakproofness, in order to avoid tooth ware power device to appear the condition of leaking, thereby can solve because of the rivers that spill lead to the fact the problem that transmission assembly rusts, damages to transmission assembly, in order to improve tooth ware power device's life.

Furtherly, because the technical scheme that this application adopted for the second gear is difficult to take place deformation, skew, so the meshing degree of first gear and second gear is higher, and is little to the reciprocating motion influence of diaphragm pump, in order to ensure the leakproofness of pump water subassembly, avoids appearing the condition of leaking, can further effectively solve because of the rivers that spill lead to the fact the problem that drive assembly rusted, damaged to drive assembly.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed 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 it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a power device of a tooth rinsing device disclosed in an embodiment of the invention;

FIG. 2 is a top view of the power device of the tooth rinsing device disclosed in the embodiment of the present invention;

FIG. 3 is a first cross-sectional view of the dental irrigator power unit of FIG. 2 taken in the direction M-M;

FIG. 4 is a second cross-sectional view of the dental irrigator power unit of FIG. 2 taken in the direction M-M;

FIG. 5 is an exploded view of the power device of the tooth rinsing device according to the embodiment of the present invention;

FIG. 6 is an exploded view of the power device of the tooth irrigator according to another perspective of the present invention;

fig. 7 is a schematic structural view of the tooth irrigator disclosed by the embodiment of the invention;

fig. 8 is a schematic structural view of the tooth rinsing device power device, the power supply component and the circuit board disclosed by the embodiment of the invention.

Description of the main reference numerals

100. A power device of the tooth flushing device; 1. a motor; 11. an output shaft; 2. a transmission assembly; 21. a first gear; 211. a first helical tooth; 22. a second gear; 221. a second helical tooth; 222. a protrusion; 3. a connecting member; 31. a second connection end; 311. a groove; 4. a water pumping assembly; 4a, a water pumping cavity; 41. a diaphragm pump; 411. a pump body; 412. a diaphragm; 42. a movable member; 421. a first connection end; 43. a water inlet waterway; 431. a water inlet; 5. a housing; 5a, a first shell; 5b, a second shell; 51. an accommodating cavity; 52. a first chute; 53. a second chute; 6. a rotating shaft.

200. A tooth flushing device; 201. a power supply member; 202. a circuit board; 203. a body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 efforts all 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 the orientation or positional relationship based on the orientation or positional relationship 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 to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

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 skilled in the art.

Moreover, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific type and configuration may or may not be the same), 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 technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Referring to fig. 1 to 4, an embodiment of the present invention discloses a power device 100 for a tooth rinsing device, the power device 100 includes a motor 1, a transmission assembly 2, a connection member 3 and a water pumping assembly 4, the transmission assembly 2 includes a first gear 21 and a second gear 22 having the same axial direction, the first gear 21 is connected to the motor 1, for example, the first gear 21 is connected to an output shaft 11 of the motor 1, and a first helical tooth 211 is disposed on an outer peripheral surface of the first gear 21, a second helical tooth 221 is disposed on an outer peripheral surface of the second gear 22, and the second helical tooth 221 is engaged with the first helical tooth 211, the connection member 3 is connected to the second gear 22, the water pumping assembly 4 includes a diaphragm pump 41 and a movable member 42, one end of the movable member 42 is connected to the connection member 3, and the other end of the movable member 42 is connected to the diaphragm pump 41, so that the output shaft 11 of the motor 1 rotates to drive the first gear 21 to rotate, so as to drive the second gear 22 to rotate, so as to drive the connection member 3 to move, thereby drive the movable member 42 and the diaphragm pump 41 to move, so as to realize water pumping and water feeding.

The tooth irrigator power device 100 provided by the application is characterized in that the axial direction of the first gear 21 and the axial direction of the second gear 22 are defined to be the same, the first helical teeth 211 are arranged on the outer peripheral surface of the first gear 21, and the second helical teeth 221 are arranged on the outer peripheral surface of the second gear 22, so that the transmission connection between the first gear 21 and the second gear 22 is set to be in external meshing connection, the acting force transmitted by the first gear 21 to the second gear 22 along the axial direction of the second gear 22 can be reduced, the problem that the second gear 22 is easy to deform and shift is solved, the meshing degree of the first helical teeth 211 and the second helical teeth 221 is improved, and the noise is reduced. The meshing connection between the first gear 21 and the second gear 22 is a helical meshing connection, so that a large torque can be transmitted, and the first gear 21 and the second gear 22 run more smoothly and with less noise.

Furthermore, the diaphragm pump 41 is adopted to pump water by utilizing the reciprocating motion of the diaphragm pump 41, and the diaphragm pump 41 does not need to rub the inner wall of the water pumping cavity 4a when pumping water, so that the problem that the plunger pump needs to rub the inner wall of the water pumping cavity 4a to generate noise when pumping water is solved, and the noise is further reduced; and because this diaphragm pump 41 has better waterproof sealing nature for towards tooth ware power device 100 has good waterproof sealing nature, so as to avoid towards tooth ware power device 100 the condition that leaks to appear, thereby can solve because of the problem that drives assembly 2 rust, damage that cause to drive assembly 2 of rivers that leak, in order to improve towards tooth ware power device 100's life.

Furthermore, because second gear 22 in this application is difficult to take place deformation, skew, first gear 21 and second gear 22's meshing degree is higher, and is less to the reciprocating motion influence of diaphragm pump 41 to can ensure the leakproofness of pump water subassembly 4, avoid appearing the condition of leaking, and then can further effectively solve the problem that causes drive assembly 2 to rust, damage because of the rivers that spill to drive assembly 2.

Both the axial direction of the first gear 21 and the axial direction of the second gear 22 may be the x direction in fig. 5.

In some embodiments, as shown in fig. 3, 4 and 5, wherein the dashed arrows in fig. 4 and 5 show the flow path of a liquid such as water, fig. 4 shows a cross-sectional view of the dental irrigator power unit when water is supplied, and fig. 5 shows a cross-sectional view of the dental irrigator power unit when water is pumped. The power device 100 of the tooth rinsing device further comprises a housing 5, the housing 5 is provided with an accommodating cavity 51 with an opening, the motor 1 is arranged outside the accommodating cavity 51, the diaphragm pump 41 is arranged at the opening of the accommodating cavity 51, and the first gear 21, the second gear 22 and the connecting part 3 are all located in the accommodating cavity 51. Specifically, this diaphragm pump 41 includes the pump body 411 and diaphragm 412, the pump body 411 is installed in the opening part of holding chamber 51, and the pump body 411 is equipped with the cavity that has the opening and set up towards adapting unit 3, diaphragm 412 locates the pump body 411 and closing cap in the opening of cavity to form pump water cavity 4a of diaphragm pump 41 between diaphragm 412 and cavity, diaphragm 412 can take place deformation under adapting unit 3's drive, in order to change the size of pump water cavity 4a, thereby change the pressure in pump water cavity 4a, and then realize the pump water and intake. Illustratively, as shown in fig. 4, the diaphragm 412 can deform in the negative direction of the y direction when being pulled by the connecting part 3 to increase the size of the pump water chamber 4a, so as to reduce the pressure inside the pump water chamber 4a, thereby achieving water inlet; as shown in fig. 5, the diaphragm 412 can deform in the positive direction of the y direction when pushed by the connecting component 3 to reduce the size of the pump water cavity 4a, so as to increase the pressure inside the pump water cavity 4a, thereby pumping water.

In some embodiments, the pump water cavity 4a of the diaphragm pump 41 is provided with a water inlet path 43, the water inlet 431 of the water inlet path 43 and the motor 1 are located on different sides of the housing 5, so that the water inlet pipe connected to the water inlet 431 and the motor 1 are disposed on different sides of the housing 5, and the water inlet pipe and the motor 1 can be avoided from each other, and further the arrangement of the water inlet pipe is not affected by the motor 1, which is convenient for the arrangement of the water inlet pipe, and is also beneficial to making the overall structural design of the tooth irrigator power device 100 more compact, thereby being beneficial to the miniaturization design of the tooth irrigator power device 100.

As described above, one end of the connecting member 3 is connected to the second gear 22, and the other end thereof is connected to one end of the movable member 42, but since the other end of the movable member 42 is connected to the diaphragm 412 of the diaphragm pump 41, the motion locus of the connecting member 3 is not simply moved circumferentially around the axis of the second gear 22, and therefore, in order to reduce the interference between the connecting member 3 and the movable member 42 and to allow the connecting member 3 to run smoothly, the connecting member 3 and the movable member 42 are connected to each other by the rotating shaft 6, so that the movable member 42 is rotatably connected to the connecting member 3.

In some embodiments, as shown in fig. 3 to 6, the inner wall surface of the housing 5 is provided with a first sliding groove 52 and a second sliding groove 53, the first sliding groove 52 and the second sliding groove 53 are oppositely arranged, and the first sliding groove 52 and the second sliding groove 53 are both arranged to extend along a first direction, wherein the first direction is configured to: a direction perpendicular to the plane of the axis of the second gear 22, for example, the y direction in fig. 5 and 6. One end of the rotating shaft 6 is inserted into the first sliding groove 52 and can slide relative to the first sliding groove 52, and the other end of the rotating shaft 6 is inserted into the second sliding groove 53 and can slide relative to the second sliding groove 53, so that under the driving of the connecting part 3, the movable part 42 can move along the first direction to drive the diaphragm 412 to deform approximately along the first direction by matching with the guiding effect of the first sliding groove 52 and the second sliding groove 53 on the rotating shaft 6, and thus, the pressure in the pump water cavity 4a is changed, and water inlet and outlet are realized. Through set up first spout 52, second spout 53 at the internal wall face of shell 5, but utilize both ends sliding connection in first spout 52 and second spout 53 of pivot 6 to guide movable part 42 along the activity of first direction, make movable part 42 move more smoothly, steady, also enable diaphragm 412 of diaphragm pump 41 mainly to receive the effort along first direction simultaneously, easier deformation, the easier business turn over water that realizes.

Illustratively, the housing 5 may include a first housing 5a and a second housing 5b, the first housing 5a and the second housing 5b are connected in a butt joint manner and form an inner space of the housing 5, a surface of the first housing 5a facing the second housing 5b is provided with the first sliding groove 52, and a surface of the second housing 5b facing the first housing 5a is provided with the aforementioned second sliding groove 53.

In some embodiments, as shown in fig. 3 to fig. 6, for convenience of description, the end of the movable part 42 connected to the connecting part 3 is defined as the first connecting end 421, and the end of the connecting part 3 connected to the movable part 42 is defined as the second connecting end 31, but it should be understood that the above definition is only an example for convenience of description and understanding, and does not limit the protection scope of the present embodiment. The second connecting end 31 of the connecting part 3 is connected with the first connecting end 421 of the movable part 42 through the rotating shaft 6, at least part of the end surface of the first connecting end 421 of the movable part 42 is a convex arc surface, the second connecting end 31 of the connecting part 3 is provided with a groove 311, at least part of the inner wall surface of the groove 311 is a concave arc surface matched with the convex arc surface, and the concave arc surface and the convex arc surface can be movably connected, so that when the first connecting end 421 rotates relative to the second connecting end 31, the convex arc surface can slide relative to the concave arc surface to play a role in guiding the rotation of the first connecting end 421 relative to the second connection, and the stability of the rotation of the first connecting end 421 relative to the second connecting end 31 is improved.

For example, the first connection end 421 may be formed as a first ball-shaped end, the outer surface of the first ball-shaped end forms the convex arc surface, the second connection end 31 may be formed as a second ball-shaped end, the second ball-shaped end is provided with a groove 311 matching with the first ball-shaped end, the inner wall surface of the groove 311 forms the concave arc surface, and the first ball-shaped end is rotatably disposed in the groove 311. The rotating shaft 6 sequentially penetrates through one side wall of the groove 311, the first spherical end and the other side wall of the groove 311, and two ends of the rotating shaft 6 are respectively located outside the groove 311. With the above structure, the movable part 42 can move more stably.

In some embodiments, in the first direction, the length of the connecting part 3 is greater than the length of the movable part 42, and when the connecting part 3 is projected on an end surface of the second gear 22, the second connecting end 31 is at least partially located outside the end surface of the second gear 22, so as to avoid interference between the movable part 42 and the second gear 22, which affects the movement of the movable part 42, thereby ensuring that the diaphragm 412 of the diaphragm pump 41 can be deformed normally, so as to ensure that water can be fed and discharged normally.

In some embodiments, the movement range of the connecting member 3 moving along the first direction is 2mm to 4mm, for example, 2mm, 2.3mm, 2.5mm, 3mm, 3.4mm, 3.5mm, 3.6mm, or 4mm, and the movement range of the connecting member 3 moving along the first direction is smaller, which is beneficial to design the overall size of the tooth irrigator power device 100 to be smaller, and is also beneficial to avoid that the movement range of the connecting member 3 is larger, so as to avoid that the diaphragm 412 deforms too much due to the too large movement range of the movable member 42, so that the diaphragm 412 is damaged and fails to be used, and the deformation requirement of the diaphragm 412 of the diaphragm pump 41 is also lower.

In some embodiments, the connecting member 3 is eccentrically connected to the second gear 22, the connecting member 3 is not limited to include a plurality of rods, and may include only one rod, and when the connecting member includes only one rod, the structure of the connecting member 3 is relatively simple and the number of parts is small, thereby facilitating the compact structure of the tooth irrigator power device 100 and realizing the miniaturized design of the tooth irrigator power device 100.

Illustratively, one end face of the second gear 22 is provided with a protrusion 222, the center of the protrusion 222 is located outside the axis of the second gear 22, and the connecting part 3 is sleeved on the outer periphery of the protrusion 222, so as to realize the eccentric connection between the connecting part 3 and the second gear 22. And the protrusion 222 and the motor 1 are respectively located at both sides of the second gear 22 in the axial direction thereof, so that the connection member 3 and the motor 1 are respectively located at both sides of the second gear 22 in the axial direction thereof, and thus the connection member 3 and the motor 1 can be prevented from interfering with each other, so that the movement interference of the connection member 3 and the motor 1 is reduced, and the operation of the connection member 3 and the motor 1 is smoother.

In some embodiments, the first helical tooth 211 extends from one end face of the first gear 21 to the other end face of the first gear 21, the second helical tooth 221 extends from one end face of the second gear 22 to the other end face of the second gear 22, and the first helical tooth 211 extends at an angle α,15 ° ≦ α ≦ 35 °, such as α =15 °, α =18 °, α =20 °, α =25 °, α =28 °, α =30 °, α =35 °, or the like, with the second helical tooth 221 extending at an angle β,15 ° ≦ β ≦ 35 °, such as β =15 °, β =18 °, β =20 °, β =25 °, β =28 °, β =30 °, β =35 °, or the like, with the axial direction of the second gear 22. By setting the angle between the extending direction of the first helical tooth 211 and the axial direction of the first gear 21 and the angle between the extending direction of the second helical tooth 221 and the axial direction of the second gear 22 within the range of 15 ° to 35 °, the force transmitted from the first gear 21 to the second gear 22 in the axial direction of the second gear 22 can be made small, so that the meshing between the first gear 21 and the second gear 22 is relatively smooth, and the noise is small.

Further, the number of the first helical teeth 211 may be 10 to 16, such as 10, 11, 12, 13, 14, 15 or 16, etc., and the number of the second helical teeth 221 may be 40 to 64, such as 40, 44, 48, 50, 52, 54, 56, 60, 62 or 64, etc., and by defining the number of the first helical teeth 211 and the second helical teeth 221 within the above range, a larger transmission ratio can be obtained to obtain a larger torque, so that the rotation speed of the output shaft 11 of the motor 1 can be reduced, and the vibration of the output shaft 11 is small and stable.

In some embodiments, the connecting member 3 and the motor 1 are respectively located on both sides of the second gear 22 in the axial direction thereof. Thus, even if the motor 1 uses the output shaft 11 having a short length, the motor 1 does not interfere with the connection member 3, and the use of the output shaft 11 having a short length can stabilize the rotation of the first gear 21 and make the transmission more stable.

Referring to fig. 7 and 8, the present invention discloses a tooth rinsing device, the tooth rinsing device 200 includes a power supply part 201 and the tooth rinsing device power device 100 as described in the above embodiments, the power supply part 201 is electrically connected to the motor 1 of the tooth rinsing device power device 100 to supply power to the motor 1. It will be appreciated that the dental irrigator 200 having the dental irrigator power unit 100 described above also has all the technical effects of the dental irrigator power unit 100 described above. Since the above technical effects have been described in detail in the embodiment of the power device 100 of the tooth irrigator, they will not be described herein again. The power supply 201 may be a battery, a power supply, or the like.

In some embodiments, the power supply part 201 can be disposed at one side of the motor 1, and the power supply part 201 and the second gear are located at the same side of the motor 1, which is beneficial to make the overall structure of the dental irrigator 200 more compact and the overall volume smaller, so that the dental irrigator 200 can be designed in a miniaturized manner.

In some embodiments, the dental irrigator may further include a circuit board 202, the circuit board 202 and the power supply part 201 may be disposed on opposite sides of the dental irrigator power device 100, and the circuit board 202 is electrically connected to the power supply part 201 and the motor 1, so that the power supply part 201 can supply power to the circuit board 202, and the circuit board 202 can control the motor 1 to be turned on and off, so as to facilitate the turning on and off of the motor 1. By adopting the layout mode, the integral structure of the tooth flushing device 200 is more compact, and the integral volume is smaller, so that the tooth flushing device 200 can realize miniaturization design.

In some embodiments, the tooth irrigator further comprises a body 203, and the power supply part 201 and the tooth irrigator power device 100 are both arranged in the body 203, so that the power supply part 201 and the tooth irrigator power device 100 can be protected by the body 203. And this power supply part 201 is close to the lateral part setting of organism 203, and the lateral part of organism 203 is equipped with the inlet tube (not shown), and this inlet tube sets up with motor 1 stagger to make the setting of inlet tube not receive the influence of motor 1, and then the setting of the inlet tube of being convenient for, also be favorable to making the complete machine structural design who washes tooth ware 200 compacter simultaneously, and then be favorable to washing the miniaturized design of tooth ware 200.

The above detailed description is made on the tooth rinsing device power device and the tooth rinsing device disclosed in the embodiments of the present invention, and the detailed embodiments are applied herein to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understand the tooth rinsing device power device and the tooth rinsing device of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be changes in the specific embodiments and the application range, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A power device for a dental irrigator, comprising:

a motor;

the transmission assembly comprises a first gear and a second gear which are identical in axial direction, the first gear is connected with the motor, first helical teeth are arranged on the peripheral surface of the first gear, second helical teeth are arranged on the peripheral surface of the second gear, and the second helical teeth are in meshed connection with the first helical teeth;

a connecting member connected with the second gear; and

the water pumping assembly comprises a diaphragm pump and a movable part, one end of the movable part is connected with the connecting part, and the other end of the movable part is connected with the diaphragm pump.

2. The dental irrigator power unit of claim 1 wherein the angle between the direction of extension of said first helical teeth and the axial direction of said first gear is α,15 ° ≦ α ≦ 35 °, and the angle between the direction of extension of said second helical teeth and the axial direction of said second gear is β,15 ° ≦ β ≦ 35 °; and/or

3. The power device of the tooth rinsing device as claimed in claim 1, wherein a protrusion is disposed on one end surface of the second gear, the center of the protrusion is located outside the axis of the second gear, the connecting member is sleeved on the outer periphery of the protrusion, and the protrusion and the motor are respectively located on two sides of the second gear along the axis direction thereof.

4. The dental irrigator power device of claim 1 wherein the movable member is connected to the connecting member by a shaft such that the movable member is rotatably connected to the connecting member.

5. The power device of the tooth-rinsing device as claimed in claim 4, wherein the end of the movable member connected to the connecting member is a first connecting end, the end of the connecting member connected to the movable member is a second connecting end, the second connecting end is connected to the first connecting end through a rotating shaft, at least a part of the end surface of the first connecting end is a convex arc surface, the second connecting end is provided with a groove, at least a part of the inner wall surface of the groove is a concave arc surface matched with the convex arc surface, and the concave arc surface is movably connected to the convex arc surface.

6. The dental irrigator power device of claim 1 wherein the connecting member moves in a range of motion from 2mm to 4mm in a first direction configured to: perpendicular to the direction of the plane of the axis of the second gear.

7. The power device of claim 1, further comprising a housing, wherein the housing has a cavity with an opening, the motor is disposed outside the cavity, the diaphragm pump is disposed at the opening of the cavity, the pump cavity of the diaphragm pump has a water inlet channel, the water inlet channel and the motor are disposed on different sides of the housing, and the first gear, the second gear, and the connecting member are disposed in the cavity.

8. The power device of claim 1, further comprising a housing, wherein the housing has a first and a second sliding slot on an inner wall surface, the first and the second sliding slots are disposed opposite to each other, and the first and the second sliding slots extend along a first direction, the first direction is configured to: a direction perpendicular to the plane of the axis of the second gear;

9. The dental irrigator power device of any one of claims 1 to 8 wherein the motor and the connecting member are located on either side of the second gear in the direction of its axis.

10. A dental irrigator comprising a power supply and a dental irrigator power unit according to any one of claims 1 to 9, said power supply being electrically connected to said motor.

11. The dental irrigator of claim 10 wherein said power supply member is located on one side of said motor and said power supply member and said second gear are located on the same side of said motor; and/or

The tooth flushing device further comprises a circuit board, the circuit board and the power supply part are arranged on two opposite sides of the tooth flushing device power device, and the circuit board is electrically connected with the power supply part and the motor.

12. The apparatus as claimed in claim 10, further comprising a body, wherein the power supply unit and the power unit are disposed inside the body, the power supply unit is disposed near a lateral portion of the body, a water inlet pipe is disposed at a lateral portion of the body, and the water inlet pipe is staggered with the motor.