CN211156409U

CN211156409U - Tooth washing machine

Info

Publication number: CN211156409U
Application number: CN201921273972.2U
Authority: CN
Inventors: 李苗军
Original assignee: Yixiao Science And Technology Shaoxing Co ltd
Current assignee: Yixiao Science And Technology Shaoxing Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-08-04
Anticipated expiration: 2029-08-07

Abstract

The utility model provides a tooth washing machine, which belongs to the field of tooth washing machines. The tooth washing machine comprises a whole machine shell, wherein the whole machine shell is provided with a liquid storage bin, a water pumping device and a water spraying device, the water pumping device is used for pumping water in the liquid storage bin into the water spraying device, the water spraying device is used for spraying water, the water pumping device is provided with a driving adjusting device and a control device, the driving adjusting device is used for driving the water pumping device and adjusting gears, the whole machine shell is further provided with a power supply device, the control device is used for controlling the driving adjusting device, and the control device is used for starting the power supply device. The utility model has the advantages of convenience and the like.

Description

Tooth washing machine

Technical Field

The utility model belongs to the field of tooth cleaning machines, in particular to a tooth cleaning machine.

Background

Plaque is the root of periodontal disease and is constantly reforming at the tooth surface after removal. Plaque is not removed well, and the mineral salts in saliva are gradually deposited, so that tartar is formed in the long term. The presence of tartar, in turn, brings plaque into intimate contact with the tissue surface, causing an inflammatory response in the periodontal tissue. In addition, the porous structure of the tartar also readily absorbs large amounts of bacterial toxins, and the tartar can also interfere with tooth brushing. If the traditional Chinese medicine is not removed for a long time, gingivitis, periodontitis, gingival bleeding and halitosis can be caused, and finally, the phenomena of tooth loosening, even falling off and the like can be caused. Cleaning of the teeth is critical.

Tooth cleaning is a good tooth health-care means and is a primary measure for treating periodontal diseases, and not only can plaque and calculus on teeth be thoroughly removed through regular tooth cleaning, so that periodontal tissues can be kept healthy and the periodontal diseases can be prevented and treated, but also tiny and imperceptible dental diseases such as hidden decayed teeth can be easily found during tooth cleaning, so that the purpose of early discovery and early treatment can be achieved.

The toothbrush is a common tooth cleaning tool for modern people, the purpose of cleaning teeth is achieved by moving the teeth with the toothbrush, but the user often runs things during tooth cleaning because the user is tired of manually brushing the teeth, so that bacteria are bred. It is therefore of great importance to find a tool that can replace a toothbrush for cleaning teeth.

Disclosure of Invention

The utility model aims at providing a tooth washing machine aiming at the problems in the prior art.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a tooth washing machine, its characterized in that includes the complete machine shell, the complete machine shell be provided with stock solution storehouse, pumping device and water jet equipment, pumping device be arranged in with the water pump of stock solution storehouse go into water jet equipment, water jet equipment be used for spraying water, pumping device be provided with drive adjusting device and controlling means, drive adjusting device be used for driving pumping device and adjust the gear, the complete machine shell still be provided with power supply unit, controlling means be used for controlling drive adjusting device, controlling means be used for starting power supply unit.

The utility model discloses a theory of operation: the utility model discloses the during operation, controlling means starts power supply unit, make drive adjusting device circular telegram, drive adjusting device promptly and be in standby state, drive pump water installation pump water when drive adjusting device starts, controlling means makes the gear that drive adjusting device adjusted the tooth cleaning machine through control drive adjusting device, adjust the pump water time interval of pump water installation promptly, during the liquid pump of pump water installation in with the stock solution storehouse goes into water jet equipment, the water jet equipment water spray, can store the mouthwash or the running water that market sells or add the water that has the tooth cleaning powder in the stock solution storehouse.

In the above tooth washing machine, the water spraying device comprises a gun head and a spray head fixedly connected with the gun head, the gun head is detachably connected with the whole machine shell, and the water spraying device is further provided with a spraying conduit which is used for being connected with the water pumping device.

In the above tooth washing machine, the nozzle comprises a nozzle shell and a camera system, a first drainage channel is arranged in the nozzle shell, the nozzle shell is provided with a transparent cover covering the camera system, the transparent cover is provided with a jet orifice for spraying water, a jet cavity is formed between the transparent cover and the nozzle shell, the camera system is located in the jet cavity, the jet cavity is communicated with the first drainage channel, a second drainage channel is arranged in the gun head, and the second drainage channel is communicated with the first drainage channel.

In the above tooth washing machine, the transparent cover is a convex lens cover, and the transparent cover is provided with a massage head for rubbing teeth.

In the above dental scaler, the camera system is sealed and provided with a wire, the surface of the wire is sealed and provided with an L ED lamp for illumination and an optical proximity sensor.

In the above tooth washing machine, a sealing plug is arranged at the communication position of the first drainage channel and the injection cavity, the sealing plug is used for a lead to penetrate out of the injection cavity, and the lead is used for being connected with a power supply device.

In the above dental scaler, the camera system is provided with a fixing bracket, the fixing bracket is used for fixing the camera system in the spray cavity, and the fixing bracket is located at the joint of the transparent cover and the spray head shell.

In the above-mentioned dental scaler, the control device include the control scheme board and set up switch and the speed governing switch on the control scheme board, switch be used for the user to press and start power supply unit, the speed governing switch be used for the user to press the regulation gear.

In the above tooth washing machine, the control device is further provided with an indicating device, the indicating device comprises a charging indicating lamp, a power supply indicating lamp and gear indicating lamps, and the number of the gear indicating lamps is 3.

In an above-mentioned tooth washing machine, drive adjusting device include gear motor subassembly and drive shaft assembly, gear motor subassembly pass through drive shaft assembly and pump water installation and connect, gear motor subassembly be used for the drive pump water installation and adjust the pump water time interval of pump water installation.

In the above-mentioned tooth washing machine, the injection conduit is provided with a second one-way valve.

In the above tooth washing machine, the water pumping device comprises a water suction cavity and an air compression cavity, the water pumping device is provided with a piston body located in the air compression cavity, the water suction cavity is provided with a water suction guide pipe for sucking liquid in the liquid storage bin, the water suction guide pipe is provided with a first one-way valve, the water suction cavity is connected with the injection guide pipe, and the driving and adjusting device is used for driving the piston body to reciprocate, so that the water suction cavity sucks water and pumps the water into the water spraying device.

In the above tooth washing machine, the water pumping device is provided with a movable rod, and the piston body is sleeved outside the movable rod.

In foretell tooth washing machine, movable rod bottom cover be equipped with the elastic component, elastic component one end and movable rod butt, the elastic component other end links firmly bottom the water pumping device.

In the tooth washing machine, the bottom of the movable rod is provided with a convex block, the convex block is positioned in the water suction cavity, the top of the water suction cavity is provided with an opening, and the convex block is used for closing the opening.

In the above tooth washing machine, the gas compression cavity is divided into a piston upper cavity and a piston lower cavity, and two ends of the piston body are abutted against the side wall of the gas compression cavity.

In the tooth washing machine, the water pumping device is further provided with an exhaust cavity, and the exhaust cavity is communicated with the cavity above the piston.

In the above dental scaler, the power supply device is a battery assembly.

In the tooth washing machine, the whole machine shell is also provided with a charging interface, and the charging interface is used for charging the power supply device by an external power supply.

In the tooth washing machine, the liquid storage bin is provided with the liquid injection port and the liquid bin door, and the liquid bin door is provided with the waterproof ring.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses the during operation, controlling means starts power supply unit, make drive adjusting device circular telegram, drive adjusting device promptly and be in standby state, drive pump water installation pump water when drive adjusting device starts, controlling means makes the gear that drive adjusting device adjusted the tooth cleaning machine through control drive adjusting device, adjust the pump water time interval of pump water installation promptly, during the liquid pump of pump water installation in with the stock solution storehouse goes into water jet equipment, the water jet equipment water spray, can store the mouthwash or the running water that market sells or add the water that has the tooth cleaning powder in the stock solution storehouse.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic cross-sectional view of the water intake duct of the present invention;

FIG. 3 is a schematic cross-sectional view of the water pumping device of the present invention;

FIG. 4 is a schematic cross-sectional view of the liquid chamber door of the present invention;

fig. 5 is a schematic cross-sectional view of the sprinkler head of the present invention;

fig. 6 is a schematic structural diagram of the indicating device of the present invention;

fig. 7 is a schematic structural view of the friction head of the present invention.

In the figure, the device comprises a whole machine shell, a liquid storage bin, a water pumping device, a water spraying device, a driving adjusting device, a control device, a power supply device, a gun head, a sprayer, a spray nozzle, a spray conduit, a second one-way valve, a spray nozzle shell, a camera system, a first drainage channel, a transparent cover, a spray opening, a control device, a power supply device, a spray cavity, a massage head, a guide wire, a light source, a speed adjusting switch, a speed reducing motor component, a transmission shaft component, a water suction cavity body, a control circuit board, a power switch, a speed adjusting switch, a liquid injection device, a charging indicator light, a power indicator light, a gear indicator light, a speed reducing motor component, a transmission shaft component, a water suction cavity body, a piston compression cavity body, a piston body, a water suction conduit, a water suction cavity body, a piston sealing plug, a piston body, a water suction cavity body, a piston.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-7, a tooth washing machine comprises a whole machine housing 1, wherein the whole machine housing 1 is provided with a liquid storage bin 2, a water pumping device 3 and a water spraying device 4, the water pumping device 3 is used for pumping water in the liquid storage bin 2 into the water spraying device 4, the water spraying device 4 is used for spraying water, the water pumping device 3 is provided with a driving adjusting device 5 and a control device 6, the driving adjusting device 5 is used for driving the water pumping device 3 and adjusting gears, the whole machine housing 1 is further provided with a power supply device 7, the control device 6 is used for controlling the driving adjusting device 5, and the control device 6 is used for starting the power supply device 7.

In further detail, the water spraying device 4 comprises a gun head 8 and a spray head 9 fixedly connected with the gun head 8, the gun head 8 is detachably connected with the whole machine shell 1, the water spraying device 4 is further provided with a spraying conduit 10, and the spraying conduit 10 is used for being connected with the water pumping device 3. The spray head 9 comprises a spray head 9 shell and a camera system 13, a first drainage channel 14 is arranged in the spray head 9 shell, a transparent cover 16 covering the camera system 13 is arranged on the spray head 9 shell, the transparent cover 16 is provided with a jet orifice 17 for spraying water, a spray cavity 18 is formed between the transparent cover 16 and the spray head 9 shell, the camera system 13 is located in the spray cavity 18, the spray cavity 18 is communicated with the first drainage channel 14, a second drainage channel 19 is arranged in the gun head 8, and the second drainage channel 19 is communicated with the first drainage channel 14.

The shell of the spray head 9 is fixedly connected with the gun head 8, the gun head 8 is detachably connected with the whole machine shell 1, after the tooth washing machine is started, the water pumping device 3 pumps water in the liquid storage bin 2 into the injection guide pipe 10, the water flows into the second drainage channel 19 of the gun head 8 from the injection guide pipe 10, then flows into the first drainage channel 14 to enter the injection cavity 18, and finally is sprayed out from the injection port 17. Camera system 13 is located and sprays chamber 18, and camera system 13's outside is covered with translucent cover 16, when camera system 13 starts, see through translucent cover 16, camera system 13 has the camera, camera system 13 is used for making a video recording, can shoot, gather the relevant image data of tooth, camera system 13 can have communication module, carry out data transmission, communication module is used for data remote transmission to the cloud end server that obtains gathering, the cloud end server carries out analysis processes to data, and feed back the analysis result to the terminal, the terminal is used for receiving the analysis result of the data after the cloud end server analysis processes. The nozzle 9 can spray water to wash teeth and collect image data related to the teeth.

In further detail, the transparent cover 16 is a convex lens cover, and the transparent cover 16 is provided with a massage head 20 for rubbing teeth.

The convex lens has the amplification function, the camera system 13 collects tooth related image data through the convex lens cover, and therefore when shooting is conducted, the teeth are amplified through the convex lens cover, and shooting is clearer. For some users with dental calculus, physical rubbing with the massage head 20 is required.

In further detail, the camera system 13 is hermetically arranged, the camera system 13 is provided with a lead 21, the surface of the lead 21 is hermetically arranged, and the camera system 13 is further provided with an L ED lamp 22 and an optical proximity sensor 23 for illumination.

Because the camera system 13 is located in the ejection chamber 18, the camera system 13 needs to be waterproof, thereby preventing damage to the camera system 13. The camera system 13 is electrified to work through the lead 21, the lead 21 is connected with the camera system 13, a part of the lead 21 is also positioned in the spraying cavity 18, and the surface of the lead 21 also needs to be sealed to prevent water from entering and burning out the lead 21.

L ED lamp 22 is used for lighting, the light proximity sensing system makes the camera system 13 turn on automatically when the nozzle 9 is close to the teeth, the lead 21 of the camera system 13 is connected with the power supply device 7, and the water spraying of the tooth washing machine is started automatically.

Example (c): after light proximity sensor 23 is close oral cavity tooth, because sense the change of light, can send this kind of change for the high in the clouds server, the high in the clouds server is to drive adjusting device 5 delivery instruction, starts drive adjusting device 5 to drive adjusting device 5 drive pumping device 3 pumping. There are various ways to activate the driving adjustment means 5 when the water spray means 4 is close to the teeth, and only one way is mentioned here, but not limited to this.

In more detail, a sealing plug 51 is arranged at the communication part of the first drainage channel 14 and the injection cavity 18, the sealing plug 51 is used for leading the lead wire 21 out of the injection cavity 18, and the lead wire 21 is used for being connected with the power supply device 7.

The lead 21 is connected and electrified with the power supply device 7 to enable the camera system 13 to work, so the lead 21 needs to penetrate through the spraying cavity 18 to be connected with the power supply device 7, water can be contained in the spraying cavity 18, the lead 21 cannot carry out the water when penetrating through the spraying cavity 18, a sealing plug 51 is arranged, the lead 21 penetrates out of the spraying cavity 18 from the sealing plug 51, and the sealing plug 51 prevents the water from flowing out of the spraying cavity 18. The lead 21 passes through the sealing plug 51, and then the lead 21 is buried in the side wall of the housing of the spray head 9 and connected with the power supply device 7 of the tooth washing machine through the side wall of the gun head 8.

In further detail, the camera system 13 is provided with a fixing bracket 24, the fixing bracket 24 is used for fixing the camera system 13 in the spraying cavity 18, and the fixing bracket 24 is positioned at the joint of the transparent cover 16 and the shell of the spray head 9.

In further detail, the control device 6 includes a control circuit board 25, and a power switch 26 and a speed regulating switch 27 which are arranged on the control circuit board 25, wherein the power switch 26 is used for a user to press and start the power supply device 7, and the speed regulating switch 27 is used for the user to press and adjust a gear. The control device 6 is further provided with an indicating device 28, wherein the indicating device 28 comprises a charging indicating lamp 29, a power supply indicating lamp 30 and gear position indicating lamps 31, and the number of the gear position indicating lamps 31 is 3.

The user presses the power switch 26 to start the power supply device 7, the driving adjusting device 5 is powered on and is in a standby state, the spray head 9 can spray water when being close to the oral cavity, the user presses the speed adjusting switch 27 to adjust gears, the power switch 26 and the speed adjusting switch 27 are separately arranged, the user presses the power switch 26 to start the power supply device 7, and the user presses the speed adjusting switch 27 to adjust gears. Is very convenient. When the tooth washing machine is charged, the charging indicator lamp 29 is turned on, when the power switch 26 is turned on, the power indicator lamp 30 is turned on, the gear indicator lamps 31 are used for displaying gears, the number of the gear indicator lamps 31 is 3, and the gear number is three. Indicator lights are also mounted on the control circuit board 25.

In further detail, the driving adjustment device 5 comprises a speed reduction motor assembly 32 and a transmission shaft assembly 33, the speed reduction motor assembly 32 is connected with the water pumping device 3 through the transmission shaft assembly 33, and the speed reduction motor assembly 32 is used for driving the water pumping device 3 and adjusting the water pumping time interval of the water pumping device 3.

The speed regulating switch 27 can regulate three gears, wherein the first gear continuously injects water, the second gear intermittently injects water, and the interval of the third gear intermittently injects water is longer than that of the second gear. The water pumping time interval of the water pumping device 3 is controlled by the speed reducing motor assembly 32, so that the purpose of adjusting the gear of the speed adjusting switch 27 is achieved.

In further detail, the injection conduit 10 is provided with a second one-way valve 11.

In more detail, the water pumping device 3 comprises a water suction cavity 34 and a gas compression cavity 35, the water pumping device 3 is provided with a piston body 36 positioned in the gas compression cavity 35, the water suction cavity 34 is provided with a water suction conduit 37 for sucking liquid in the liquid storage bin 2, the water suction conduit 37 is provided with a first one-way valve 38, the water suction cavity 34 and the injection conduit 10, and the driving and adjusting device 5 is used for driving the piston body 36 to reciprocate, so that the water suction cavity 34 sucks water and pumps the water into the water spraying device 4.

The adjusting device 5 is driven to start, the piston body 36 is driven to reciprocate, the water suction conduit 37 sucks water into the water suction cavity 34 by utilizing the pressure difference generated by the reciprocating motion of the piston body 36, then the water in the water suction cavity 34 is pumped into the injection conduit 10, the water suction conduit 37 is provided with a first one-way valve 38, the injection conduit 10 is provided with a second one-way valve 11, and the water can only flow into the water suction conduit 37 and flow out of the injection conduit 10.

In further detail, the water pumping device 3 is provided with a movable rod 39, and the piston body 36 is sleeved outside the movable rod 39. The movable rod 39 is connected to the driving shaft rod assembly 33, the reduction motor assembly 32 drives the movable rod 39 through the driving shaft rod assembly 33, and the piston body 36 moves together with the movable rod 39.

In further detail, the bottom of the movable rod 39 is sleeved with an elastic piece 40, one end of the elastic piece 40 is abutted against the movable rod 39, and the other end of the elastic piece 40 is fixedly connected with the bottom of the water pumping device 3. The elastic member 40 may be a spring.

In more detail, the bottom of the movable rod 39 is provided with a protrusion 41, the protrusion 41 is located in the water absorption cavity 34, the top of the water absorption cavity 34 is provided with an opening 42, and the protrusion 41 is used for closing the opening 42.

When the movable rod 39 moves downwards, the water suction cavity 34 drains water, the lug 41 moves downwards along with the movable rod 39, the water suction cavity 34 is communicated with the air compression cavity 35 through the opening 42, when the movable rod 39 moves upwards, the water suction cavity 34 sucks water, the lug 41 moves upwards along with the movable rod 39 until the lug 41 abuts against the two sides of the opening 42, and therefore the opening 42 is closed, and the lug 41 is used for preventing water from being sucked into the air compression cavity 35 in the process that the water suction cavity 34 sucks water.

In more detail, the gas compression cavity 35 is divided into an upper piston cavity 43 and a lower piston cavity 44, and both ends of the piston body 36 are abutted against the side wall of the gas compression cavity 35. The water pumping device 3 is also provided with an exhaust cavity 45, and the exhaust cavity 45 is communicated with the cavity 43 above the piston.

The water pumping device 3 is also provided with an exhaust cavity 45, and the exhaust cavity 45 is communicated with the cavity 43 above the piston. When the piston moves downwards, the volume of the cavity 44 below the piston is reduced, the volume of the cavity 43 above the piston is increased, gas enters the cavity 43 above the piston from the exhaust cavity 45, when the piston moves upwards, the volume of the cavity 44 below the piston is increased, the volume of the cavity 43 above the piston is reduced, and the gas in the cavity 43 above the piston is exhausted through the exhaust cavity 45. Thereby keeping the air pressure in the chamber 43 above the piston balanced with the external atmospheric pressure.

In more detail, the power supply device 7 is a battery pack. The whole machine shell 1 is further provided with a charging interface 47, and the charging interface 47 is used for an external power supply to charge the power supply device 7.

In more detail, the liquid storage bin 2 is provided with a liquid injection port 48 and a liquid bin door 49, and the liquid bin door 49 is provided with a waterproof ring 50.

The liquid storage bin door 49 is opened, liquid is injected into the liquid storage bin 2 through the liquid injection port 48, and the waterproof ring 50 is used for preventing the liquid in the liquid storage bin 2 from leaking.

The connection between the injector conduit 10 and the suction cavity 34 is shown in cross-section, cut away, and is therefore shown in phantom in fig. 1, the phantom in fig. 1 indicating that the injector conduit 10 and the suction cavity 34 are connected.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the present disclosure has been made with greater use of the overall housing 1, the reservoir 2, the water pumping device 3, the water spraying device 4, the driving adjustment device 5, the control device 6, the power supply device 7, the gun head 8, the spray head 9, the spray conduit 10, the second check valve 11, the spray head housing 12, the camera system 13, the first drainage channel 14, the transparent cover 16, the spray opening 17, the spray chamber 18, the second drainage channel 19, the massage head 20, the wire 21, the L ED lamp 22, the light proximity sensor 23, the fixing bracket 24, the control wiring board 25, the power switch 26, the speed control switch 27, the indicating device 28, the charge indicator lamp 29, the power indicator lamp 30, the shift indicator lamp 31, the deceleration motor assembly 32, the drive shaft assembly 33, the water suction chamber 34, the gas compression chamber 35, the piston body 36, the water suction conduit 37, the first check valve 38, the movable rod 39, the elastic member 40, the bump 41, the opening 42, the piston upper chamber 43, the lower chamber 44, the air discharge chamber 45, the charge inlet 47, the liquid filling inlet 49, the water-proof ring 50, the sealing ring 50, and the like, these terms are merely used for convenience of the present disclosure and the description of these terms are not intended to exclude any possibility of the present disclosure and any other terms.

Claims

1. The utility model provides a tooth washing machine, which is characterized in that, includes complete machine shell (1), complete machine shell (1) be provided with stock solution storehouse (2), pumping device (3) and water jet equipment (4), pumping device (3) be arranged in with the water pump in stock solution storehouse (2) go into water jet equipment (4), water jet equipment (4) be used for spraying water, pumping device (3) be provided with drive adjusting device (5) and controlling means (6), drive adjusting device (5) be used for driving pumping device (3) and adjust the gear, complete machine shell (1) still be provided with power supply unit (7), controlling means (6) be used for controlling drive adjusting device (5), controlling means (6) be used for starting power supply unit (7).

2. The tooth washing machine according to claim 1, characterized in that the water spraying device (4) comprises a gun head (8) and a spray head (9) fixedly connected with the gun head (8), the gun head (8) is detachably connected with the whole machine housing (1), the water spraying device (4) is further provided with a spray conduit (10), and the spray conduit (10) is used for being connected with the water pumping device (3).

3. The tooth washing machine according to claim 2, characterized in that the nozzle (9) comprises a nozzle housing (12) and a camera system (13), a first drainage channel (14) is arranged in the nozzle housing (12), the nozzle housing (12) is provided with a transparent cover (16) covering the camera system (13), the transparent cover (16) is provided with a jet orifice (17) for spraying water, a jet cavity (18) is formed between the transparent cover (16) and the nozzle housing (12), the camera system (13) is positioned in the jet cavity (18), the jet cavity (18) is communicated with the first drainage channel (14), a second drainage channel (19) is arranged in the gun head (8), and the second drainage channel (19) is communicated with the first drainage channel (14).

4. A dental prophylaxis device according to claim 3, characterized in that the transparent cover (16) is a convex lens cover, the transparent cover (16) is provided with a massage head (20) for rubbing against the teeth, the camera system (13) is hermetically arranged, the camera system (13) is provided with a wire (21), the wire (21) is hermetically arranged on the surface, the camera system (13) is further provided with an L ED lamp (22) for illumination and a light proximity sensor (23), a connection between the first drainage channel (14) and the injection chamber (18) is provided with a sealing plug (51), the sealing plug (51) is used for the wire (21) to pass out of the injection chamber (18), the wire (21) is used for connecting with a power supply device (7), the camera system (13) is provided with a fixing bracket (24), the fixing bracket (24) is used for fixing the camera system (13) in the injection chamber (18), and the fixing bracket (24) is located at the connection between the transparent cover (16) and the nozzle housing (12).

5. The tooth washing machine according to claim 1, characterized in that the control device (6) comprises a control circuit board (25), a power switch (26) and a speed regulating switch (27) which are arranged on the control circuit board (25), the power switch (26) is used for a user to press and start the power supply device (7), the speed regulating switch (27) is used for the user to press and adjust gears, the control device (6) is further provided with an indicating device (28), the indicating device (28) comprises a charging indicating lamp (29), a power indicating lamp (30) and a gear indicating lamp (31), and the number of the gear indicating lamps (31) is 3.

6. A dental prophylaxis device according to claim 1, characterized in that said drive adjustment means (5) comprises a gear motor assembly (32) and a drive shaft assembly (33), said gear motor assembly (32) being connected to said water pumping means (3) via said drive shaft assembly (33), said gear motor assembly (32) being adapted to drive said water pumping means (3) and to adjust the pumping time interval of said water pumping means (3).

7. The tooth washing machine as claimed in claim 2, characterized in that said water pumping device (3) comprises a water suction chamber (34) and a gas compression chamber (35), said water pumping device (3) is provided with a piston body (36) in the gas compression chamber (35), said water suction chamber (34) is provided with a water suction conduit (37) for sucking the liquid in the reservoir (2), said water suction conduit (37) is provided with a first one-way valve (38), said water suction chamber (34) is connected with the injection conduit (10), said driving and adjusting device (5) is used for driving the piston body (36) to reciprocate, so that the water suction chamber (34) sucks water and pumps the water into the water spraying device (4), said injection conduit (10) is provided with a second one-way valve (11).

8. The tooth washing machine as claimed in claim 7, characterized in that the water pumping device (3) is provided with a movable rod (39), the piston body (36) is sleeved outside the movable rod (39), an elastic member (40) is sleeved at the bottom of the movable rod (39), one end of the elastic member (40) is abutted against the movable rod (39), the other end of the elastic member (40) is fixedly connected with the bottom of the water pumping device (3), a convex block (41) is arranged at the bottom of the movable rod (39), the convex block (41) is positioned in the water suction cavity (34), an opening (42) is formed at the top of the water suction cavity (34), and the convex block (41) is used for closing the opening (42).

9. The dental washing machine as claimed in claim 7, wherein the gas compression chamber (35) is divided into an upper piston chamber (43) and a lower piston chamber (44), both ends of the piston body (36) are abutted against the side wall of the gas compression chamber (35), the water pumping device (3) is further provided with an exhaust chamber (45), and the exhaust chamber (45) is communicated with the upper piston chamber (43).

10. The tooth washing machine as claimed in claim 1, characterized in that the power supply device (7) is a battery assembly, the whole machine housing (1) is further provided with a charging interface (47), the charging interface (47) is used for an external power supply to charge the power supply device (7), the liquid storage bin (2) is provided with a liquid injection port (48) and a liquid storage bin door (49), and the liquid storage bin door (49) is provided with a waterproof ring (50).