CN108742910B

CN108742910B - Tooth washing device

Info

Publication number: CN108742910B
Application number: CN201810822152.8A
Authority: CN
Inventors: 孟凡迪
Original assignee: Shenzhen Sushi Technology Co Ltd
Current assignee: Shenzhen Sushi Technology Co Ltd
Priority date: 2018-07-24
Filing date: 2018-07-24
Publication date: 2024-03-15
Anticipated expiration: 2038-07-24
Also published as: CN108742910A

Abstract

The invention discloses a tooth cleaner, which comprises a shell, a power pump and a duckbill valve, wherein a water inlet flow channel and a water outlet flow channel are arranged in the shell, the power pump comprises a pump body, a cylinder body and a piston which are arranged in the pump body, the pump body is provided with a water inlet and a water outlet which are communicated with the cylinder body, the water inlet is communicated with the water inlet flow channel, the water outlet is communicated with the water outlet flow channel, water in the water inlet flow channel is pressurized by the power pump and then is conveyed to the water outlet flow channel, the duckbill valve comprises a mounting part which is arranged in the water outlet flow channel, one side of the mounting part is provided with an opening and closing part and a supporting part which is used for adjusting the opening and closing degree of the opening and closing part, the opening and closing part comprises a notch which is used for opening or closing the water outlet flow channel, so that the duckbill valve forms a water inlet side and a water outlet side at the notch, the supporting part is provided with at least one adjusting convex rib which is connected with the opening and closing part, and is used for limiting the deformation of the notch. The technical scheme of the invention can improve the reliability of the tooth cleaner.

Description

Tooth washing device

Technical Field

The invention relates to the field of oral care appliances, in particular to a tooth cleaner.

Background

The tooth cleaner is generally used for nursing an oral cavity and mainly comprises a main machine, a water tank, a nozzle and the like, wherein a power pump and a water flow channel formed by a water inlet flow channel and a water outlet flow channel are arranged in the main machine; the power pump is communicated with the water outlet flow passage, and the water outlet flow passage conveys the pressurized water to the nozzle, so that the nozzle can spray high-pressure water flow for tooth flushing.

In order to achieve the purpose, a one-way valve is arranged between the power pump and the water inlet flow channel, so that the power pump can pump water in the water inlet flow channel in a one-way mode to enter the power pump, and the power pump outputs the water through the water outlet flow channel after applying a certain pressure to the water. Similarly, a one-way valve can be arranged between the power pump and the water outlet flow passage and used for preventing water in the water outlet flow passage from flowing back.

The power pump is connected in the water flow channel, and the dental washer generally needs to meet the sealing requirement of the IPX7, namely, the water in the water flow channel is not easy to infiltrate with external media due to the fact that the water is immersed in water under specified conditions and cannot enter the water flow channel, so that the power pump needs to be connected in the water flow channel in a sealing mode through a one-way valve, or the power pump needs to be connected in the water flow channel through other sealing pieces. However, in the existing tooth cleaner, when the power pump is connected with the water inlet flow channel through the rigid check valve such as the valve plate or the ball valve, the conducted water inlet is greatly influenced by the valve value, so that the requirement of accurate water taking is difficult to meet, and when the power pump is connected with the water inlet flow channel through the flexible check valve such as the duckbill valve, the flexible part is easy to lose efficacy under the action of higher pressure, so that the reliability of the tooth cleaner is poor.

Disclosure of Invention

The invention mainly aims to provide a tooth cleaner, which aims to improve the reliability of the tooth cleaner.

In order to achieve the above object, the invention provides a tooth cleaner, which comprises a shell, a power pump and a duckbill valve, wherein a water inlet flow channel and a water outlet flow channel are arranged in the shell, the power pump comprises a pump body, a cylinder body and a piston, the cylinder body and the piston are arranged in the pump body, the pump body is provided with a water inlet and a water outlet, the water inlet is used for being communicated with the water inlet flow channel, the water outlet is used for being communicated with the water outlet flow channel, so that water in the water inlet flow channel is pressurized by the power pump and then is conveyed to the water outlet flow channel, the duckbill valve comprises a mounting part arranged in the water outlet flow channel, one side of the mounting part is provided with an opening and closing part and a supporting part for adjusting the opening and closing degree of the opening and closing part, the opening and closing part comprises a notch for opening or closing the water outlet flow channel, so that the duckbill valve forms a water inlet side and a water outlet side at the notch, the water outlet side faces towards the water outlet of the pump body, and at least one adjusting rib is arranged outside the supporting part, and at least one adjusting rib is connected with the opening and closing part for limiting the deformation of the notch.

Preferably, the tooth cleaner further comprises a second duckbill valve, the second duckbill valve comprises a second installation part installed in the water inlet channel, one side of the second installation part is provided with a second opening and closing part and a second supporting part for adjusting the opening and closing degree of the second opening and closing part, the second opening and closing part comprises a second notch for opening or closing the water inlet channel, so that the second duckbill valve forms a second water inlet side and a second water outlet side at the second notch, the second water inlet side is arranged towards the water inlet of the pump body, at least one second adjusting convex rib is arranged outside the second supporting part, and the at least one second adjusting convex rib is connected with the second opening and closing part and is used for limiting the deformation amount of the second notch.

Preferably, at least one of the adjusting ribs is an annular rib plate, a containing cavity is formed in the annular rib plate, the opening and closing part is arranged in the containing cavity, at least one of the second adjusting ribs is a second annular rib plate, a second containing cavity is formed in the second annular rib plate, and the second opening and closing part is arranged in the second containing cavity.

Preferably, the tooth cleaner further comprises a water inlet adapter, a water outlet adapter and two sealing elements, wherein the duckbill valve is arranged in the water inlet adapter, the water inlet is communicated with the water inlet runner through the water inlet adapter, the second duckbill valve is arranged in the water outlet adapter, the water outlet is communicated with the water outlet runner through the water outlet adapter, the water inlet adapter is close to the outer ring of one end of the water inlet, and the outer ring of one end of the water outlet adapter close to the water outlet is provided with a sealing element mounting groove, and one sealing element is arranged in the sealing element mounting groove.

Preferably, the tooth cleaner further comprises a sealing cork, the sealing cork is provided with a second end and a first end for connecting the piston, the second end of the sealing cork is provided with an annular groove for forming the sealing skirt and the sealing bulge, the second end is provided with a containing groove, and the containing groove is internally provided with a mounting skirt extending towards the axis of the sealing cork for clamping the sealing cork on the piston.

Preferably, the power pump further comprises a motor, a spiral bevel gear, a driving wheel and a connecting rod, wherein the motor is used for driving the piston to reciprocate in the cylinder body, the spiral bevel gear is installed on an output shaft of the motor, the driving wheel is provided with a rotation axis, the driving wheel is provided with an eccentric shaft and a toothed ring, the toothed ring is provided with arc teeth used for arc transition when being meshed with the spiral bevel gear so as to drive the eccentric shaft to eccentrically rotate around the rotation axis, the connecting rod is movably connected with the eccentric shaft so as to reciprocate under the driving of the driving wheel, and one end of the connecting rod is connected with the piston so as to enable the piston to reciprocate along the length direction of the cylinder body.

Preferably, the spiral bevel gear is a spiral bevel gear, the rotation axis of the spiral bevel gear is intersected with the rotation axis of the toothed ring, the spiral angle of the spiral bevel gear is set to be 30-40 degrees, and the spiral angle of the spiral bevel gear is set to be 33-35 degrees or 37 degrees.

Preferably, the shell is internally provided with a mounting cavity arranged along a first direction, the motor is mounted in the mounting cavity, the cylinder body and the mounting cavity are arranged side by side, the driving wheel comprises an arc tooth meshing part and a connecting part which are arranged back to side, the motor and the cylinder body are arranged on two sides of the driving wheel, the arc tooth meshing part faces one side of the motor, the arc tooth is arranged on the arc tooth meshing part, the connecting part faces one side of the cylinder body, the eccentric shaft is arranged on the connecting part, the connecting rod is provided with a shaft sleeve, and the eccentric shaft is rotatably arranged in the shaft sleeve.

Preferably, the tooth cleaner further comprises a nozzle and a switch device, wherein the shell is provided with an inserting groove, and a first water outlet communicated with the water outlet flow channel is arranged in the shell; the nozzle comprises a plug connector, a water guide channel and a second water outlet communicated with the water guide channel, the nozzle is detachably connected to the plug groove through the plug connector, so that the first water outlet is communicated with the water guide channel of the nozzle, the switch device is arranged on the shell and is provided with a locking station and an unlocking station, when the switch device is located at the locking station, the plug connector is locked in the plug groove to be connected with the first water outlet and the water guide channel, and when the switch device is located at the unlocking station, the plug connector can be detached from the plug groove.

Preferably, the nozzle is provided with a water retaining ring for reflecting the jet flow, and the water retaining ring is detachably connected to the nozzle, or the water retaining ring and the nozzle are integrally arranged.

Preferably, the tooth cleaner further comprises a control circuit board, a plurality of indicator lamps, a control button and a speed regulating button, wherein the control button and the speed regulating button are installed on the shell, the control circuit board is connected with the motor and the indicator lamps, the indicator lamps are used for indicating the power conduction condition of the control circuit board and the rotating speed condition of the motor, the speed regulating button is used for controlling the rotating speed of the motor, and the control button is used for starting and stopping the power supply of the control circuit board.

According to the tooth washer disclosed by the technical scheme of the invention, the duckbill valve is arranged on the water outlet flow passage through the mounting part, and the water outlet of the pump body is communicated with the water outlet flow passage. The same side of the installation part is provided with an opening and closing part and a supporting part, the opening and closing part can be two soft thin sheets which incline oppositely, the end parts of the two soft thin sheets prop against each other to form a notch of the opening and closing part, and the opening and closing part forms a water inlet side and a water outlet side which are oppositely arranged at the notch to play a role of unidirectional sealing the water inlet flow channel. The water outlet side is arranged towards the water outlet of the pump body and is used for controlling water in the pump body to enter the water outlet flow channel, so that water in the pump body enters the water outlet flow channel unidirectionally. The supporting part is arranged on the same side of the opening and closing part and is mainly used for adjusting the opening and closing degree of the opening and closing part. The support part is provided with at least one adjusting convex rib, and the at least one adjusting convex rib can play supporting roles such as thickening and limiting on two flaps of the opening and closing part, so that the notch of the opening and closing part is positioned in a water outlet flow passage which is connected with the power pump and is provided with pressure, and has stronger tearing strength, particularly when the notch is impacted by larger pressure, the notch is prevented from tearing to cause the failure of the duckbill valve, and the reliability of the tooth cleaner is improved. On the one hand, when the opening and closing part is in a zero pressure state, the arrangement mode can play a role in prepressing the two soft sheets to a certain extent, so that the two soft sheets are more reliable when being closed. On the other hand, when one end of the two flaps, which is abutted against, is acted by negative pressure towards one side of the extending part of the flaps, the arrangement mode can prevent the opening and closing part from inwards rolling up, so that the deformation of the notch is limited, the improper water delivery caused by the improper deformation of the duckbill valve is prevented, the sealing reliability of the power pump is improved, and the reliability of the tooth cleaner is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a construction of a dental washer according to the present invention;

FIG. 2 is an exploded view of the dental washer of the present invention;

FIG. 3 is a schematic view showing the internal structure of the dental washer of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic illustration of the duckbill valve of FIG. 3;

figure 6 is a schematic view of the structure of a second duckbill valve of the present invention;

FIG. 7 is an enlarged view of part B of FIG. 3;

FIG. 8 is a cross-sectional view of the sealing cork of the present invention;

FIG. 9 is a schematic view of the structure of the spiral bevel gear of the present invention;

FIG. 10 is a schematic view of the structure of the driving wheel of the present invention;

FIG. 11 is a schematic view of a connecting rod according to the present invention;

FIG. 12 is a partially exploded schematic view of the dental washer of the present invention;

FIG. 13 is a schematic diagram of a key structure according to the present invention;

fig. 14 is a schematic structural view of a slider according to the present invention.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The invention provides a tooth cleaner, referring to fig. 1-5, the tooth cleaner comprises a shell 10, a power pump 20 and a duckbill valve 30, wherein a water inlet channel 10a and a water outlet channel 10b are arranged in the shell 10, the power pump 20 comprises a pump body 21, a cylinder 22 and a piston 23 which are arranged in the pump body 21, the pump body 21 is provided with a water inlet 211 and a water outlet 212 which are communicated with the cylinder 22, the water inlet 211 is used for being communicated with the water inlet channel 10a, the water outlet 212 is used for being communicated with the water outlet channel 10b, so that water in the water inlet channel 10a is pressurized by the power pump 20 and then conveyed to the water outlet channel 10b, the duckbill valve 30 comprises a mounting part 31 which is arranged on the water outlet channel 10b, one side of the mounting part 31 is provided with an opening and closing part 32 and a supporting part 33 which is used for adjusting the opening and closing degree of the opening and closing part 32, the opening and closing part 32 comprises a notch 321 which is used for opening or closing the water outlet channel 10b, so that the duckbill valve 30 forms a water inlet side and a water outlet side at the notch 321, the water outlet side is arranged towards the water outlet 212 of the pump 21, which is used for controlling the water in the pump body 21 to enter the water outlet channel 10b, the supporting part is used for being pressurized by the water, so that water in the water inlet channel 10b is conveyed to be at least by the water outlet channel 10b, and is provided, and at least one adjusting rib 331 is connected with at least by a regulating rib for adjusting and at least one adjusting rib.

With continued reference to fig. 1 to 5, specifically, the duckbill valve 30 is mounted on the water outlet channel 10b by the mounting portion 31, and the duckbill valve 30 may be mounted on the water outlet channel 10b first, and then the water outlet channel 10b is communicated with the water outlet 212 of the pump body 21; of course, the water outlet flow path 10b may be mounted to the water outlet flow path 10b by the mounting portion 31 of the duckbill valve 30, and the water outlet flow path 10b may be mounted to the water outlet 212 by the duckbill valve 30 so that the water outlet 212 of the pump body 21 communicates with the water outlet flow path 10b. In the embodiment of the present invention, the opening and closing part 32 and the supporting part 33 are provided on the same side of the mounting part 31, and the opening and closing part 32 may be two soft sheets (not shown) which are inclined opposite to each other, and the ends of the two soft sheets abut against each other to form the notch 321 of the opening and closing part 32, and it should be specifically clarified that when the opening and closing part 32 is in the zero pressure state, the two soft sheets are closed. The notch 321 of the opening and closing part 32 may be opened or closed in response to a change in the water pressure in the water outlet flow passage 10b, for example, when one end of the two flaps against which the flaps extend is subjected to positive pressure or the other end is subjected to negative pressure, the notch 321 of the opening and closing part 32 is opened; when one end of the two flaps, which is abutted against, is subjected to negative pressure on the side extending toward the flap, or positive pressure on the other side, the notch 321 of the opening and closing part 32 is closed. Thus, the opening and closing part 32 is disposed in the water outlet flow channel 10b and has a water inlet side (not shown) and a water outlet side (not shown) which are disposed opposite to each other, so as to perform a function of unidirectional sealing the water outlet flow channel 10b. The water outlet side is arranged towards the water outlet 212 of the pump body 21 and is used for controlling water in the pump body 21 to enter the water outlet flow channel 10b, so that the water in the pump body 21 enters the water outlet flow channel 10b in a unidirectional way. The supporting portion 33 is disposed on the same side of the opening and closing portion 32, the supporting portion 33 may be a supporting block, etc., at least one adjusting rib 331 is disposed outside the supporting portion 33, and the at least one adjusting rib 331 may be one, two or more, and is mainly used for adjusting the opening and closing degree of the opening and closing portion 32. The at least one adjusting rib 331 can support the two flaps of the opening and closing part 32, so that the cut 321 of the opening and closing part 32 is positioned in the pump body 21 which is connected with the power pump 20 and is provided with pressure, and has stronger tearing strength, especially when the cut 321 is impacted by larger pressure, the at least one adjusting rib 331 can prevent the cut 321 from tearing to cause failure, thereby improving the sealing reliability of the power pump 20 and further improving the reliability of the tooth cleaner.

With continued reference to fig. 1 to 5, at least one adjusting rib 331 is connected to the opening and closing portion 32, and at least one adjusting rib 331 may be disposed in a surrounding bone, or may be disposed as a plurality of reinforcing ribs, where the surrounding bone may be an annular rib plate or enclosed by an irregular rib plate, and the connection manner between at least one adjusting rib 331 and the opening and closing portion 32 may be various, such as through gluing or an integral arrangement, which will not be described herein. On the other hand, when the opening and closing part 32 is in the zero pressure state, the arrangement mode can play a certain role in pre-pressing the two soft sheets, so that the two soft sheets are more reliable when being closed. On the other hand, when the opposite ends of the two flaps are subjected to negative pressure towards the extending side of the flaps, the arrangement mode can prevent the opening and closing part 32 from inwards rolling up, so that the deformation of the notch 321 is limited, the improper water delivery amount caused by the improper deformation of the duckbill valve 30 is prevented, the sealing reliability of the power pump 20 is improved, and the reliability of the tooth cleaner is further improved.

Referring to fig. 1 to 6, the dental washer preferably further includes a second duckbill valve 40, the second duckbill valve 40 includes a second mounting portion 41 for mounting the second duckbill valve 40 in the intake runner 10a, one side of the second mounting portion 41 is provided with a second opening and closing portion 42 and a second supporting portion 43 for adjusting the opening and closing degree of the second opening and closing portion 42, the second opening and closing portion 42 includes a second slit 421 for opening or closing the intake runner 10a such that the second duckbill valve 40 has a second intake side (not shown) and a second outlet side (not shown) disposed opposite to each other, the second intake side is disposed toward the intake port 211 of the pump body 21 for controlling water in the intake runner 10a to enter the pump body 21, the second supporting portion 43 is externally provided with at least one second adjusting rib 431, and the at least one second adjusting rib 431 is connected with the second opening and closing portion 42 for limiting the deformation amount of the second slit 421. The second duckbill valve 40 may be mounted with the water inlet flow path 10a first, and then the water inlet flow path 10a is communicated with the water inlet 211 of the pump body 21; of course, the second mounting portion 41 of the second duckbill valve 40 may be mounted to the water inlet flow path 10a, and the water inlet flow path 10a may be mounted to the water inlet 211 through the second duckbill valve 40 such that the water inlet 211 of the pump body 21 communicates with the water inlet flow path 10 a.

With continued reference to fig. 1-6, the second opening and closing portion 42 may be a two-piece soft sheet (not shown) that is inclined opposite to each other, and the ends of the two-piece soft sheet abut against each other to form a second notch 421 of the second opening and closing portion 42, and it is specifically explained that the two-piece soft sheet is closed when the second opening and closing portion 42 is in the zero-pressure state. The second slit 421 of the second opening and closing part 42 may be opened or closed according to the change of the water pressure in the water inlet flow passage 10a, for example, when one side of the two flaps, against which one end extends toward the flap, is subjected to positive pressure or the other side is subjected to negative pressure, the second slit 421 of the second opening and closing part 42 is opened; when one end of the two flaps, which is abutted against, is subjected to negative pressure on the side extending toward the flap, or positive pressure on the other side, the second slit 421 of the second opening and closing portion 42 is closed. Thus, the second opening and closing part 42 is formed with the second water inlet side and the second water outlet side at the second slit 421 to function as a one-way seal of the water inlet flow passage 10 a. The second water outlet side is provided toward the water inlet 211 of the pump body 21 for controlling the water in the water inlet flow passage 10a to be output to the pump body 21 in one direction. The second supporting portion 43 is disposed on the same side of the second opening and closing portion 42, at least one second adjusting rib 431 is disposed outside the second supporting portion 43, and the at least one second adjusting rib 431 may be one, two or more second adjusting ribs and is mainly used for adjusting the opening and closing degree of the second opening and closing portion 42. The at least one second adjusting rib 431 can support the two flaps of the second opening and closing part 42, so that the second notch 421 of the second opening and closing part 42 is positioned in the water inlet flow channel 10a connected with the power pump 20 and provided with pressure, and has stronger tearing strength, especially when the second notch 421 is impacted by larger pressure, the second notch 421 can be prevented from tearing to cause failure, thereby improving the reliability of the tooth cleaner.

With continued reference to fig. 1 to 6, the at least one second adjusting rib 431 is connected to the second opening and closing portion 42, and the at least one second adjusting rib 431 may be disposed in a surrounding bone, or may be disposed as a plurality of reinforcing ribs, where the surrounding bone may be an annular rib plate or enclosed by an irregular rib plate, and the at least one second adjusting rib 431 may be connected to the second opening and closing portion 42 in various manners, such as through gluing or integrally disposed, which will not be described herein. On the one hand, when the second opening and closing part 42 is in the zero pressure state, the arrangement mode can pre-press the two soft thin sheets to a certain extent, so that the two soft thin sheets are more reliable when being closed. On the other hand, when the opposite ends of the two flaps are subjected to negative pressure towards the extending side of the flaps, the arrangement mode can prevent the second opening and closing part 42 from inwards rolling up, so that the deformation of the second notch 421 is limited, the improper water delivery amount caused by the improper deformation of the second duckbill valve 40 is prevented, the sealing reliability of the power pump 20 is improved, and the reliability of the tooth cleaner is further improved.

With continued reference to fig. 1 to 6, preferably, at least one adjusting rib 331 is an annular rib 331a, a receiving cavity 332 is formed in the annular rib 331a, the opening and closing portion 32 is disposed in the receiving cavity 332, at least one second adjusting rib 431 is a second annular rib 431a, a second receiving cavity 432 is formed in the second annular rib 431a, and the second opening and closing portion 42 is disposed in the second receiving cavity 432. The height of the annular rib plate 331a is flush with the height of the opening and closing part 32 or greater than the height of the opening and closing part 32, so that the opening and closing part 32 can be placed in the accommodating cavity 332, and the supporting force of the opening and closing part 32 is further enhanced. The height of the second annular rib plate 431a is flush with the height of the second opening and closing part 42 or greater than the height of the second opening and closing part 42, so that the second opening and closing part 42 can be placed in the second accommodating cavity 432, and the supporting force of the second opening and closing part 42 is further enhanced. In addition, the annular rib 331a may be further provided with a vertical rib 331b to further strengthen the strength of the annular rib 331, so that the annular rib 331a is thinned. The second annular rib 431a may be further provided with a second vertical rib 431b, so as to further strengthen the strength of the second annular rib 431a and thin the second annular rib 431 a.

With continued reference to fig. 1 to 6, the tooth cleaner preferably further comprises a water inlet adapter 50a, a water outlet adapter 50b and two sealing members 50c, wherein the duckbill valve 30 is arranged in the water inlet adapter 50a, the water inlet 211 is communicated with the water inlet runner 10a through the water inlet adapter 50a, the second duckbill valve 40 is arranged in the water outlet adapter 50b, the water outlet 212 is communicated with the water outlet runner 10b through the water outlet adapter 50b, the outer ring of the water inlet adapter 50a near one end of the water inlet 211, and the outer ring of the water outlet adapter 50b near one end of the water outlet 212 are respectively provided with a sealing member mounting groove 50d, and one sealing member 50c is arranged in one sealing member mounting groove 50 d. The water inlet adapter 50a and the water outlet adapter 50b facilitate the installation of the pump body 21, the water inlet flow channel 10a and the water outlet flow channel 10b, the installation efficiency can be improved, and the waterproof reliability of the connection part between the water inlet flow channel 10a and the pump body 21 and between the pump body 21 and the water outlet flow channel 10b can be respectively improved through the two sealing pieces 50c.

Referring to fig. 2, 3, 7 and 8, preferably, in order to enhance the waterproof reliability of the cylinder 22 and prevent the water in the pump body 21 from leaking through the cylinder 22, the dental unit further includes a sealing cork 60, the sealing cork 60 having a second end 62 and a first end 61 for connecting the piston 23, the second end 62 of the sealing cork 60 being provided with an annular groove 622 forming a sealing skirt 621, the first end 61 being provided with a receiving groove 611, and a mounting skirt 612 extending toward the axial center of the sealing cork 60 being provided in the receiving groove 611 for clamping the sealing cork 60 to the piston 23. The sealing skirt 621 is disposed between the inner wall of the cylinder 22 and the outer wall of the sealing cork 60, and the sealing skirt 621 is used for clamping the sealing cork 60 on the piston 23, so that the sealing cork 60 can perform a radial sealing function on the cylinder 22 when sliding in the cylinder 22. The outer diameter of the sealing skirt 621 may be tapered in a direction approaching the mounting skirt 612 to facilitate the mounting of the sealing cork 60 in the cylinder 22. The sealing cork 60 thus provided can be manufactured easily and is suitable for mass production. In addition, the connecting end 231 of the piston 23 stretches into the blind hole to be clamped with the sealing cork 60, so that the risk of water in the pump body 21 leaking from the inner ring of the O-shaped ring can be avoided relative to the O-shaped ring arranged on the piston 23, and the connecting mode is convenient to install. It should be noted that, by this arrangement, the deformation of the sealing cork 60 can be reduced, the risk of water leakage is reduced, and the sealing reliability is further improved.

Referring to fig. 2, 3, 9 and 10, the power pump 20 preferably further includes a motor 24 for driving the piston 23 to reciprocate in the cylinder 22, a spiral bevel gear 25, a driving wheel 26 and a connecting rod 27, the driving wheel 26 is provided with a rotation axis C, the driving wheel 26 is provided with an eccentric shaft 261 and a toothed ring 262, the toothed ring 262 is provided with arc teeth 262a for arc transition when being meshed with the spiral bevel gear 25, so as to drive the eccentric shaft 261 to eccentrically rotate around the rotation axis C, the connecting rod 27 is movably connected with the eccentric shaft 261 to reciprocate under the driving of the driving wheel 26, and one end of the connecting rod 27 is connected with the piston 23 to reciprocate the piston 23 along the length direction of the cylinder 22. The spiral bevel gear 25 is connected to the output shaft of the motor 24 to rotate with the output shaft of the motor 24, and the spiral bevel gear 25 may be connected to the output shaft of the motor 24 by engagement of a mounting pin with a mounting groove. The driving wheel 26 may be rotatably disposed in the housing 10 after being connected to the rotating shaft, so that the driving wheel 26 may rotate around the rotation axis C of the rotating shaft, and a corresponding technical solution may be obtained by a person skilled in the art according to the embodiments of the present invention and the accompanying drawings, which will not be described in detail herein. The toothed ring 262 of the driving wheel 26 is used for being meshed with the spiral bevel gear 25, the toothed ring 262 is provided with arc teeth 262a, and a larger meshing surface can be provided by meshing the spiral bevel gear 25 with the toothed ring 262, so that the first-stage transmission output by the motor 24 is more stable, and the output noise of the spiral bevel gear 25 is smaller compared with that of rigid transmission parts such as a worm gear and the like, thereby improving the silencing effect of the tooth washer. In addition, the eccentric shaft 261 of the driving wheel 26 is movably connected with the connecting rod 27 to enable the connecting rod 27 to reciprocate under the driving of the driving wheel 26, so that the output shaft of the motor 24 can reduce the rotating speed through the driving wheel 26, convert the rotation of the motor 24 into linear motion and the like, the number of intermediate driving parts is reduced, and therefore kinematic pairs are reduced, noise sources are avoided, and the silencing effect of the tooth cleaner is further improved. The connecting rod 27 may be pivoted to the eccentric shaft 261, and the driving wheel 26 drives the connecting rod 27 to move so that the connecting rod 27 has a partial motion of reciprocating along the length direction of the cylinder 22. One end of the connecting rod 27 is connected with the piston 23 of the pump body 21, and the connecting rod 27 drives the piston 23 to move so as to enable the piston 23 to reciprocate along the length direction of the cylinder 22. The spiral bevel gear 25 may be a spiral bevel gear (not shown) or a hypoid bevel gear (not shown), wherein the hypoid bevel gear may have its axis offset from the axis of the gear ring 262 to improve the flexibility of the internal space arrangement of the power pump 20.

Referring to fig. 9 and 10, it is preferable that the spiral bevel gear 25 is provided as a spiral bevel gear such that the rotation axis of the spiral bevel gear 25 is disposed to intersect with the rotation axis of the gear ring 262, the helix angle of the spiral bevel gear 25 is set to 30 degrees to 40 degrees, and the helix angle of the spiral bevel gear 25 is set to 33 degrees, 35 degrees, or 37 degrees. The spiral bevel gear can enable transmission to be stable, and the noise effect of the tooth washer is good. In order to enhance the transmission strength and adapt the spiral bevel gear 25 to a larger transmission ratio, the spiral angle of the spiral bevel gear 25 is set at 30 degrees to 40 degrees, and the spiral angle is set at 33 degrees, 35 degrees or 37 degrees as a preferable value.

Referring to fig. 2, 3, 9, 10 and 11, preferably, in order to make the internal space layout of the housing 10 compact, a mounting cavity 11 arranged along a first direction V is provided in the housing 10, a motor 24 is mounted in the mounting cavity 11, a cylinder 22 is arranged side by side with the mounting cavity 11, a driving wheel 26 includes an arc tooth engaging portion 26a and a connecting portion 26b disposed opposite to each other, the motor 24 and the cylinder 22 are disposed at both sides of the driving wheel 26, the arc tooth engaging portion 26a is disposed toward one side of the motor 24, the arc tooth 262a is disposed on the arc tooth engaging portion 26a, the connecting portion 26b is disposed toward one side of the cylinder 22, an eccentric shaft 261 is disposed at the connecting portion 26b, a shaft sleeve 271 is disposed on the connecting rod 27, and the eccentric shaft 261 is rotatably disposed in the shaft sleeve 271. The arcuate tooth engaging portion 26a is provided toward one side of the motor 24, the arcuate tooth 262a is provided at the arcuate tooth engaging portion 26a, the connecting portion 26b is provided toward one side of the cylinder 22, and the eccentric shaft 261 is provided at the connecting portion 26b. The advantage of this arrangement is that the motor 24 and the pump body 21 can be mounted on both sides of the driving wheel 26 respectively, and when in mounting, the motor 24 and the spiral bevel gear 25 can be connected first, then the driving wheel 26 is connected, the spiral bevel gear 25 is meshed with the arc teeth 262a of the driving wheel 26, then the connecting rod 27 is mounted, and the connecting rod 27 is connected with the eccentric shaft 261 of the driving wheel 26 and the piston 23 respectively. The piston 23 and the cylinder 22 are connected, and then the piston 23 and the connecting rod 27 are connected; the piston 23 may be mounted in the cylinder 22 after the piston 23 and the connecting rod 27 are connected. Since the motor 24 and the pump body 21 do not need to be mounted on the same side of the driving wheel 26, the mounting efficiency is improved.

With continued reference to fig. 2, 3, 9, 10 and 11, the rotatable arrangement may be a pivot, or other rotatable connection, i.e. the eccentric shaft 261 has rotational freedom in the shaft sleeve 271, so that the eccentric shaft 261 smoothly transmits power to the connecting rod 27 when rotating around the rotational axis C of the driving wheel 26. Preferably, the shaft sleeve 271 has a mounting groove 271a provided in a bar shape, the mounting groove 271a may be a through hole, a blind hole, or the like, the mounting groove 271a has a hole width in the first direction V and a hole length in the perpendicular first direction V, the hole width of the mounting groove 271a allows the outer diameter of the eccentric shaft 261 to be loosely fitted so that the eccentric shaft 261 is rotatably provided in the mounting groove 271a, the hole length of the mounting groove 271a allows the eccentric shaft 261 to slide in the mounting groove 271a, and the mounting groove 271a provides a relief space for the eccentric shaft 261 when the eccentric shaft 261 rotates around the rotation axis C of the driving wheel 26, reducing the swinging of the connecting rod 27 in the hole length direction of the mounting groove 271a, thereby improving the radial force of the piston 23. The transmission of the transmission wheel 26 and the connecting rod 27 is smoother.

Referring to fig. 2, 3, 12, 13 and 14, the tooth cleaner preferably further comprises a nozzle 70 and a switch device 80, the casing 10 is provided with a plugging slot 12, and the casing 10 is internally provided with a first water outlet 13 communicated with a water outlet flow channel 10 b; the nozzle 70 comprises a plug 71, a water guide channel 72 and a second water outlet 73 communicated with the water guide channel 72, the nozzle 70 is detachably connected to the plug groove 12 through the plug 71 so that the first water outlet 13 is communicated with the water guide channel 72 of the nozzle 70, the switching device 80 is arranged on the shell 10, the switching device 80 is provided with a locking station and an unlocking station, when the switching device 80 is positioned at the locking station, the plug 71 is locked in the plug groove 12 to connect the first water outlet 13 with the water guide channel 72, and when the switching device 80 is positioned at the unlocking station, the plug 71 can be detached from the plug groove 12. The water outlet flow passage 10b is provided with a first water outlet 13 in the housing 10, and the first water outlet 13 may be provided in the housing 10 or may be provided independently of the housing 10. The housing 10 is provided with a plug groove 12 at a position corresponding to the first water outlet 13, the nozzle 70 is provided with a plug head 71, the nozzle 70 is inserted into the plug groove 12 through the plug head 71, so that the nozzle 70 is arranged on the housing 10, the first water outlet 13 is communicated with a water guide channel 72 of the nozzle 70, and water pressure applied by the power pump 20 drives water in the water guide channel 72 to be output through a second water outlet 73. When the nozzle 70 extends into the insertion groove 12 of the housing 10 through the insertion head 71, the switch device 80 can be switched between a locking position and an unlocking position, so that the nozzle 70 can be conveniently locked and installed on the tooth cleaner, and the nozzle 70 can be conveniently detached from the housing 10 of the tooth cleaner.

The switch device 80 comprises a key 81, a sliding block 82, a first elastic piece 83 and a second elastic piece 84, the shell 10 comprises a base 10c and an upper cover 10d, the upper cover 10d is provided with a mounting hole 14 for mounting the key 81, the base 10c is provided with a key pressing groove 15, the key 81 passes through the mounting hole 14 and stretches into the key pressing groove 15, one end of the first elastic piece 83 is abutted against the bottom surface of the key 81, and the other end is abutted against the base 10c, so that the key 81 stretches into the key pressing groove 15 to reciprocate. The key 81 is provided with a driving surface 811, the slider 82 is arranged on the base 10c, the base 10c is provided with a clamping rib 16, one end of the second elastic member 84 is connected with the slider 82, the other end of the second elastic member 84 is connected with the clamping rib 16, and the second elastic member 84 drives the slider 82 to abut against the driving surface 811 so that the slider 82 reciprocates under the driving of the key 81. The sliding block 82 is provided with a buckle 821, the plug 71 of the nozzle 70 is provided with a clamping groove 711, when the buckle 821 of the sliding block 82 stretches into the clamping groove 711, the switching device 80 is located at the locking station, and when the buckle 821 of the sliding block 82 breaks away from the clamping groove 711, the switching device 80 is located at the unlocking station. When a user needs to use the tooth cleaner, the plug 71 is inserted into the plug groove 12 of the shell 10, the switch device 80 is operated to enable the switch device 80 to be located at the locking station, at this time, the switch device 80 locks the nozzle 70, the first water outlet 13 is communicated with the water guide channel 72, and when the nozzle 70 sprays water, the nozzle 70 can be prevented from falling off under the action of water pressure, so that the tooth cleaner has better stability when in use. When the user needs to replace the nozzle 70, the switch device 80 is located at the unlocking station by operating the switch device 80, and at this time, the plug 71 has a degree of freedom of movement to disengage from the plug slot 12, so as to facilitate the removal of the nozzle 70. Because the switch device 80 for assembling and disassembling the nozzle 70 is integrated on the tooth cleaner, a user can manually assemble and disassemble the nozzle 70, so that the nozzle 70 and the shell 10 can be assembled and disassembled more flexibly and conveniently, and the usability of the tooth cleaner is improved. The flow cross section of the water guide channel 72 is tapered from one side of the first water outlet 13 to one side of the second water outlet 73, so that water is sprayed out at a high speed under pressure, and residues and tartar in the crevices are more easily washed out.

With continued reference to fig. 3 and 12, the nozzle 70 is preferably provided with a water deflector 74 for reflecting the spray, the water deflector 74 being detachably connected to the nozzle 70 or the water deflector 74 being integrally provided with the nozzle 70. When the water sprayed at high speed is blocked by objects such as teeth, sputtering can be generated, the water retaining ring 74 can enable the sputtered water to stay or reflect, the reflected water can flush the teeth for the second time, and the water retaining ring 74 can be provided with an arc-shaped surface 741 for protecting the oral cavity, so that the water retaining ring 74 has a larger reflection area.

With continued reference to fig. 1 and 3, the tooth cleaner preferably further comprises a control circuit board 90, a plurality of indicator lamps 91, and a control button 92 and a speed regulating button 93 mounted on the housing 10, wherein the control circuit board 90 is connected with the motor 24 and the indicator lamps 91, the indicator lamps 91 are used for indicating the power on condition of the control circuit board 90 and the rotation speed condition of the motor 24, the speed regulating button 93 is used for controlling the rotation speed of the motor 24, and the control button 92 is used for starting and stopping the power on the control circuit board 90 so as to improve the user experience. Of course, the tooth cleaner may further comprise a storage battery 98 and a water storage tank 99, wherein the water storage tank 99 is communicated with the water inlet flow channel 10a for supplying water to the tooth cleaner, and the storage battery 98 is used for supplying power to the motor 24 and the control circuit board 90.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes, direct/intermittent applications, or other related technical fields that are made by the present specification and drawings are included in the scope of the present invention.

Claims

1. The utility model provides a tooth cleaner, includes casing and power pump, be equipped with inlet channel and play water flow channel in the casing, the power pump includes the pump body, and set up cylinder body and the piston in the pump body, the pump body be equipped with the water inlet and the delivery port of cylinder body intercommunication, the water inlet be used for with inlet channel intercommunication, the delivery port be used for with play water flow channel intercommunication, so that the water of inlet channel is carried after the power pump pressurization to go out water flow channel, its characterized in that, tooth cleaner still includes:

the duckbill valve comprises a mounting part mounted on the water outlet flow channel, one side of the mounting part is provided with an opening and closing part and a supporting part for adjusting the opening and closing degree of the opening and closing part, the opening and closing part comprises a notch for opening or closing the water outlet flow channel, so that the duckbill valve forms a water inlet side and a water outlet side at the notch, the water outlet side faces to a water outlet of the pump body, at least one adjusting convex rib is arranged outside the supporting part, and at least one adjusting convex rib is connected with the opening and closing part and used for limiting the deformation of the notch;

at least one adjusting convex rib is arranged in a surrounding bone or is arranged into a plurality of reinforcing ribs, and when the adjusting convex rib is arranged in the surrounding bone, the surrounding bone is arranged into an annular rib plate or is surrounded by an irregular rib plate.

2. The dental washer of claim 1, further comprising a second duckbill valve, wherein the second duckbill valve comprises a second mounting portion mounted on the water inlet channel, a second opening and closing portion and a second supporting portion for adjusting the opening and closing degree of the second opening and closing portion are arranged on one side of the second mounting portion, the second opening and closing portion comprises a second notch for opening or closing the water inlet channel, so that the second duckbill valve forms a second water inlet side and a second water outlet side at the second notch, the second water inlet side is arranged towards the water inlet of the pump body, at least one second adjusting rib is arranged outside the second supporting portion, and the at least one second adjusting rib is connected with the second opening and closing portion and used for limiting the deformation amount of the second notch.

3. The tooth cleaner according to claim 2, wherein at least one of the adjusting ribs is an annular rib plate, a receiving cavity is formed in the annular rib plate, the opening and closing portion is disposed in the receiving cavity, at least one of the second adjusting ribs is a second annular rib plate, a second receiving cavity is formed in the second annular rib plate, and the second opening and closing portion is disposed in the second receiving cavity.

4. A dental washer according to claim 3, further comprising a water inlet adapter, a water outlet adapter and two sealing elements, wherein the duckbill valve is arranged in the water inlet adapter, the water inlet is communicated with the water inlet runner through the water inlet adapter, the second duckbill valve is arranged in the water outlet adapter, the water outlet is communicated with the water outlet runner through the water outlet adapter, the water inlet adapter is close to an outer ring of one end of the water inlet, and the outer ring of one end of the water outlet adapter close to the water outlet is provided with sealing element mounting grooves, and one sealing element is arranged in each sealing element mounting groove.

5. The dental dishwasher of claim 1, further comprising a sealing cork having a second end and a first end for connecting to the piston, the second end of the sealing cork being provided with an annular recess forming the sealing skirt and sealing protrusion, the second end being provided with a receiving recess in which a mounting skirt extending toward the axis of the sealing cork is provided for snap-fitting the sealing cork to the piston.

6. The tooth cleaner according to claim 1, wherein the power pump further comprises a motor for driving the piston to reciprocate in the cylinder, a spiral bevel gear, a driving wheel and a connecting rod, wherein the spiral bevel gear is mounted on an output shaft of the motor, the driving wheel is provided with a rotation axis, the driving wheel is provided with an eccentric shaft and a toothed ring, the toothed ring is provided with arc teeth for arc transition when meshed with the spiral bevel gear so as to drive the eccentric shaft to eccentrically rotate around the rotation axis, the connecting rod is movably connected with the eccentric shaft so as to reciprocate under the driving of the driving wheel, and one end of the connecting rod is connected with the piston so as to enable the piston to reciprocate along the length direction of the cylinder.

7. The tooth cleaner according to claim 6, wherein the spiral bevel gear is provided as a spiral bevel gear, a rotation axis of the spiral bevel gear is disposed to intersect with a rotation axis of the tooth ring, a helix angle of the spiral bevel gear is disposed at 30 degrees to 40 degrees, and a helix angle of the spiral bevel gear is disposed at 33 degrees, 35 degrees, or 37 degrees.

8. The tooth cleaner according to claim 6, wherein a mounting cavity arranged along a first direction is formed in the housing, the motor is mounted in the mounting cavity, the cylinder body and the mounting cavity are arranged side by side, the driving wheel comprises an arc tooth meshing portion and a connecting portion which are arranged back to side, the motor and the cylinder body are arranged on two sides of the driving wheel, the arc tooth meshing portion is arranged towards one side of the motor, the arc tooth is arranged on the arc tooth meshing portion, the connecting portion is arranged towards one side of the cylinder body, the eccentric shaft is arranged on the connecting portion, a shaft sleeve is arranged on the connecting rod, and the eccentric shaft is rotatably arranged in the shaft sleeve.

9. The tooth cleaner according to any one of claims 1 to 8, further comprising a nozzle and a switch device, wherein a socket is provided on the housing, and a first water outlet communicating with the water outlet channel is provided in the housing; the nozzle comprises a plug connector, a water guide channel and a second water outlet communicated with the water guide channel, the nozzle is detachably connected to the plug groove through the plug connector, so that the first water outlet is communicated with the water guide channel of the nozzle, the switch device is arranged on the shell and is provided with a locking station and an unlocking station, when the switch device is located at the locking station, the plug connector is locked in the plug groove to be connected with the first water outlet and the water guide channel, and when the switch device is located at the unlocking station, the plug connector can be detached from the plug groove.

10. The dental washer of claim 9, wherein said nozzle is provided with a water deflector for reflecting the jet, said water deflector being removably attached to said nozzle or said water deflector being integrally provided with said nozzle.

11. The device of claim 6, further comprising a control circuit board, a plurality of indicator lights, and a control button and a speed regulating button mounted on the housing, wherein the control circuit board is connected to the motor, the plurality of indicator lights are used for indicating a power on condition of the control circuit board, and a rotational speed condition of the motor, the speed regulating button is used for controlling the rotational speed of the motor, and the control button is used for starting and stopping the power on the control circuit board.