CN210990843U

CN210990843U - Tooth washing device

Info

Publication number: CN210990843U
Application number: CN201921125105.4U
Authority: CN
Inventors: 程克勇
Original assignee: Snow Bear (shanghai) Maternity And Children Articles Ltd
Current assignee: Snow Bear (shanghai) Maternity And Children Articles Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-07-14
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses a tooth washing device, including the shower nozzle, to the infusion mechanism of shower nozzle transport washing liquid and to the shower nozzle transport gas, so that the atomizing gas transmission mechanism of washing liquid, gas transmission mechanism includes the air pump and is located between air pump and the shower nozzle, for the pressure vessel of pressure accumulation, and the entry that ooff valve and shower nozzle were passed through in pressure vessel's export links to each other. The tooth washing device is internally provided with a pressure container, the outlet of the air pump is connected with the pressure container, and the pressure container can increase the back pressure of air so as to obtain higher air pressure. When the electromagnetic valve is opened, the air pressure is released, and the air is mixed with the cleaning liquid to generate high-speed spraying, so that the cleaning effect of the tooth cleaner is improved.

Description

Tooth washing device

Technical Field

The utility model relates to the technical field of oral care equipment, in particular to a tooth washing device.

Background

Dental plaque is a bacterial biofilm formed by bacteria attached to teeth and is a major cause of periodontal disease such as gingivitis. Prior art flossers, which typically employ dental floss or a dental scaler, often do not effectively remove plaque located between adjacent teeth due to the varying tooth structure of the user. The tooth cleaner removes plaque by spraying liquid onto the tooth surface, and the existing tooth cleaner is limited in volume and cannot provide a large spray pressure, thereby effectively removing plaque.

Therefore, how to increase the spray pressure of the tooth washing device is a technical problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tooth washing device, it is held pressure through pressure vessel, can improve spraying pressure, and then improves clean effect.

In order to achieve the above object, the utility model provides a tooth washing device, including the nozzle, to the nozzle carry the infusion mechanism of washing liquid and to the nozzle is gaseous, so that the atomizing air delivery mechanism of washing liquid, air delivery mechanism includes the air pump and is located the air pump with between the nozzle, for the pressure vessel of pressure accumulation, pressure vessel's export pass through the ooff valve with the entry of nozzle links to each other.

Preferably, the infusion mechanism comprises a liquid pump, a liquid storage tank, an infusion tube for connecting the liquid storage tank and the nozzle, and a motor for driving the liquid pump to rotate.

Preferably, the liquid pump and the air pump are respectively connected with two ends of a motor crankshaft and driven by the motor to rotate.

Preferably, a check valve is arranged between the infusion tube and the nozzle.

Preferably, the liquid pump is a peristaltic pump.

Preferably, the device further comprises a three-way pipe, the three-way pipe is respectively connected with the outlet of the electromagnetic valve, the infusion pipe and the nozzle, and the three-way pipe is detachably connected with the nozzle.

Preferably, the nozzle has a gas-liquid flow passage and a gas pressure release passage, and the gas-liquid flow passage and the gas pressure release passage form a gas-liquid spout and a gas pressure release port, respectively, at a front end of the nozzle.

Preferably, the diameter of the gas-liquid flow passage is gradually reduced and then gradually increased along the direction toward the gas-liquid nozzle.

Preferably, the minimum diameter of the gas-liquid flow passage is larger than the diameter of the gas pressure release passage.

The utility model provides a tooth cleaner, including the shower nozzle, to the infusion mechanism of shower nozzle transport washing liquid and to the shower nozzle conveying gas, so that the atomizing air delivery mechanism of washing liquid, air delivery mechanism includes the air pump and is located between air pump and the shower nozzle, for the pressure vessel of pressure accumulation, and the entry that ooff valve and shower nozzle are passed through in pressure vessel's export links to each other.

The tooth washing device is internally provided with a pressure container, the outlet of the air pump is connected with the pressure container, and the pressure container can increase the back pressure of air so as to obtain higher air pressure. When the electromagnetic valve is opened, the air pressure is released, and the air is mixed with the cleaning liquid to generate high-speed spraying, so that the cleaning effect of the tooth cleaner is improved.

Drawings

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

FIG. 1 is a schematic structural view of a dental scaler according to the present invention;

FIG. 2 is a cross-sectional view of the dental prophylaxis device of FIG. 1;

fig. 3 is an enlarged view of the nozzle of fig. 1.

Wherein the reference numerals in fig. 1 to 3 are:

the device comprises a motor 1, an air pump 2, a pressure container 3, a peristaltic pump 4, a nozzle 5, a three-way pipe 6, an electromagnetic valve 7, a transfusion pipe 8, a check valve 9, a liquid storage tank 10, a peristaltic pump end cover 11, a gas-liquid nozzle 51 and a gas pressure release port 52.

Detailed Description

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

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 3, fig. 1 is a schematic structural view of a tooth washing device provided by the present invention; FIG. 2 is a cross-sectional view of the dental prophylaxis device of FIG. 1; fig. 3 is an enlarged view of the nozzle of fig. 1.

The utility model provides a tooth washing device, as shown in figure 1 and figure 2, which comprises a nozzle 5, a transfusion mechanism and a gas transmission mechanism. The liquid delivery mechanism delivers the cleaning liquid to the nozzle 5, the gas delivery mechanism delivers the gas to the nozzle 5, and the cleaning liquid and the gas are simultaneously ejected from the nozzle 5, thereby atomizing the cleaning liquid.

Optionally, the air delivery mechanism comprises an air pump 2, a pressure container 3 and a switch valve. As shown in FIG. 2, the dental scaler is substantially cylindrical, and the axis of the air pump 2 is parallel to the axis of the scaler. The pressure container 3 is also cylindrical, the diameter of the pressure container is equal to that of the air pump 2, and the inlet of the pressure container 3 is connected with the outlet of the air pump 2. The tooth washing device also comprises a motor 1, an air pump 2 is connected with the motor 1, and the air pump is driven by the motor 1 to pump air and introduce the air into a pressure container 3. The switch valve is positioned between the outlet of the pressure container 3 and the inlet of the nozzle 5, the switch valve is in a normally closed state, the air pump 2 pressurizes air and then leads the air into the pressure container 3, and the pressure container 3 plays a role in pressure accumulation.

The switch valve can be embodied as an electromagnetic valve 7, the tooth washing device also comprises a control device connected with the electromagnetic valve 7, and the control device controls the electromagnetic valve 7 to be opened at fixed time or pressure so as to enable air to enter the nozzle 5 at higher pressure. Of course, the user may also need to use a manually controlled valve as the on-off valve. In one embodiment of the present application, the solenoid valve 7 is opened for 1s every 2s after closing, i.e. the pressure in the pressure vessel 3 is released for 1s after 2s of pressure accumulation. Certainly, the user can set the pressure accumulation time and the pressure release time by himself, and the pressure after the pressure release of the pressure container 3 each time is usually not higher than the pressure after the pressure release of the previous time without limitation, so that the potential safety hazard caused by the fact that the air pressure in the pressure container 3 cannot be completely released is avoided. If the electromagnetic valve 7 is controlled by opening at a constant pressure, a pressure sensor is usually arranged in the pressure container 3, and the control device is connected with the pressure sensor so as to control the opening and closing of the electromagnetic valve 7 according to the pressure in the pressure container 3. The control device may be a chip having a control function, such as an MCU controller.

The cleaning liquid forms high-speed spray under the push of high-pressure air, and the high-speed spray has larger impulse and can effectively remove dental plaque. Wherein, the pressure vessel 3 can be made of metal or plastic and other materials. Of course, the shape of the tooth washing device and the pressure container 3 can be set according to the needs of the user, and is not limited herein.

Optionally, the infusion mechanism includes a liquid pump, a liquid storage box 10 and an infusion tube 8, two ends of the infusion tube 8 are respectively connected with the nozzle 5 and the liquid storage box 10, the liquid pump is located in the middle of the infusion tube 8, and the liquid pump rotates to drive liquid to flow to the nozzle 5. After the pressure of the pressure container 3 is accumulated, the pressure of the air is usually high, and in order to avoid the interruption of the conveying of the cleaning liquid caused by the air pressure, the liquid pump usually adopts a displacement pump. The liquid pump in this application is peristaltic pump 4, and peristaltic pump 4 has the volume less, can bear advantages such as great backpressure. Of course, the user may use a plunger pump or a gear pump, etc., which is not limited herein.

Furthermore, in order to avoid the backflow of the cleaning liquid caused by large air pressure, a check valve 9 is arranged between the infusion tube 8 and the nozzle 5, the check valve 9 can effectively prevent the backflow of the cleaning liquid, and the cleaning liquid is guaranteed to be sprayed out of the nozzle 5 all the time.

In addition, the liquid pump and the air pump 2 may share the motor 1 in order to reduce the volume of the dental scaler. Specifically, as shown in fig. 2, the liquid pump and the air pump 2 are respectively connected to two ends of a crankshaft of the motor 1, the air pump 2 is located on one side of the motor 1 close to the nozzle 5, and the liquid pump is located on one side far from the nozzle 5. Since the liquid pump is a peristaltic pump 4, the infusion tube 8 is correspondingly a hose. And a peristaltic pump end cover 11 is further arranged on one side of the peristaltic pump 4, which is far away from the motor 1, and is used for sealing and protecting the peristaltic pump 4 and the hose. The liquid pump and the air pump 2 rotate under the driving of the motor 1 at the same time to convey the cleaning liquid and the air. It should be noted that, it is also the technical solution protected by the present application to provide driving motors for the liquid pump and the air pump 2, respectively.

In addition, the tooth washing device further comprises a three-way pipe 6, the three-way pipe 6 is respectively connected with an outlet of the electromagnetic valve 7, an infusion pipe 8 and an inlet of the nozzle 5, the liquid storage tank 10 is located on one side of the motor 1, and the infusion pipe 8 is connected with the liquid storage tank 10, then passes through the peristaltic pump 4 and is connected with the three-way pipe 6. The nozzle 5 may come into contact with the mouth of the user during use, and the nozzle 5 often requires a disinfection process. In this application three-way pipe 6 is connected through detachable modes such as threaded connection or grafting with nozzle 5, can demolish nozzle 5 during the disinfection, reduces the disinfection degree of difficulty. In other embodiments, the tee 6 and the nozzle 5 may be connected by a fixed connection or by other transition pieces.

In this embodiment, the air pump 2 and the liquid pump are both connected to the motor 1 and driven by the motor 1 to rotate. The air pump 2 and the liquid pump share the motor 1, so the structure of the tooth cleaner can be simplified, the volume and the manufacturing cost of the tooth cleaner can be reduced, and the tooth cleaner is convenient to popularize.

The pressure vessel 3 stores pressure to the air and then releases the air, the flow rate of the air is large and affects the spraying effect, in the present application, the nozzle 5 has a gas-liquid flow passage and an air pressure release passage, a part of the mixture of the cleaning liquid and the air flows out from the gas-liquid flow passage, and the surplus air can be released from the air pressure release passage, the gas-liquid flow passage and the air pressure release passage respectively form a gas-liquid spout 51 and an air pressure release port 52 at the front end of the nozzle 5, specifically, as shown in fig. 1 and 3, the shape of the nozzle 5 is L type, the nozzle comprises a connecting pipe connected with a three-way pipe 6 and a nozzle head connected with a vertical connecting pipe, and the gas-liquid flow passage and the air pressure release passage are both located in the nozzle head.

Alternatively, the diameter of the gas-liquid flow passage is gradually reduced and then gradually increased in the direction toward the gas-liquid nozzle 51, in other words, a throat with a smaller diameter is provided in the gas flow passage. The diameter of the airflow channel is gradually increased at the position close to the gas-liquid nozzle 51, so that the liquid spraying surface is diffused in a conical shape, the spraying area is enlarged, and the cleaning efficiency of the tooth cleaner is improved. Of course, in another embodiment of the present application, the diameter of the gas-liquid flow passage is gradually reduced in a direction toward the gas-liquid nozzle 51, so that the liquid droplets flowing out of the gas-liquid nozzle 51 have a high flow velocity, and dental plaque can be effectively removed.

In addition, the nozzle 5 is shaped like L, the nozzle 5 has a corner portion, the air pressure release channel is close to the inner side of the corner, and the air liquid flow channel is located at the outer side of the corner.

In this embodiment, the nozzle 5 is provided with a gas-liquid flow passage and an air pressure release passage, and excess gas flows out from the air pressure release passage, thereby preventing the supply of the cleaning liquid from being interrupted due to an excessive gas flow. At the same time, the gas is sprayed out from the gas pressure release port 52, and a low pressure area is formed in the area of the gas pressure release port 52, thereby promoting the atomization of the cleaning liquid.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The above detailed description is made on the tooth washing device provided by the utility model. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The tooth washing device is characterized by comprising a nozzle (5), an infusion mechanism for delivering cleaning liquid to the nozzle (5) and an air delivery mechanism for delivering air to the nozzle (5) so as to atomize the cleaning liquid, wherein the air delivery mechanism comprises an air pump (2) and a pressure container (3) which is positioned between the air pump (2) and the nozzle (5) and used for accumulating pressure, and the outlet of the pressure container (3) is connected with the inlet of the nozzle (5) through a switch valve.

2. The dental prophylaxis device according to claim 1, wherein the liquid delivery mechanism comprises a liquid pump, a reservoir (10) and a liquid delivery tube (8) connecting the reservoir (10) and the nozzle (5), and further comprising a motor (1) for driving the liquid pump in rotation.

3. The dental prophylaxis device according to claim 2, wherein the liquid pump and the air pump (2) are connected to both ends of a shaft of the motor (1), respectively, and rotated by the motor (1).

4. The dental prophylaxis device according to claim 2, wherein a non-return valve (9) is provided between the infusion tube (8) and the nozzle (5).

5. A dental rinser as claimed in claim 3, characterized in that the liquid pump is a peristaltic pump (4).

6. The dental rinser of claim 2, further comprising a tee (6), wherein the tee (6) is connected with the outlet of the solenoid valve (7), the infusion tube (8) and the nozzle (5), respectively, and the tee (6) is detachably connected with the nozzle (5).

7. The dental rinser of any one of claims 1 to 6, characterized in that the nozzle (5) has an air-liquid flow passage and a pneumatic pressure release passage respectively forming an air-liquid spout (51) and a pneumatic pressure release port (52) at the front end of the nozzle (5).

8. The dental prophylaxis device according to claim 7, wherein the gas-liquid flow passage has a diameter which is gradually reduced and then gradually increased in a direction toward the gas-liquid ejection port (51).

9. The dental prophylaxis device of claim 8 wherein said gas-liquid flow passage has a minimum diameter greater than a diameter of said gas pressure release passage.