CN220423995U

CN220423995U - Tooth-flushing device

Info

Publication number: CN220423995U
Application number: CN202321556811.0U
Authority: CN
Inventors: 吴碧涛
Original assignee: Guangzhou Stars Pulse Co Ltd
Current assignee: Guangzhou Stars Pulse Co Ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2024-02-02
Anticipated expiration: 2033-06-16

Abstract

The embodiment of the application discloses a tooth washing device, which comprises a shell, a motor and a spherical rotor pump, wherein the shell extends along a first direction and is provided with a containing cavity; the motor is arranged in the accommodating cavity; the utility model provides a tooth cleaning device, including spherical rotor pump, motor drive, spherical rotor pump, housing, spherical rotor pump, motor drive, wherein, in the first direction, spherical rotor pump with the distance of the top of housing is greater than spherical rotor pump with the distance of the bottom of housing, the top is located in the direction of gravity the upper portion of bottom, the inlet tube of spherical rotor pump in this application is shorter, and dry change time is short, is difficult for producing the dead situation of card, has improved the reliability of tooth cleaning device.

Description

Tooth-flushing device

Technical Field

The application relates to the technical field of oral cavity cleaning tools, in particular to a tooth washing device.

Background

The tooth cleaning device is an auxiliary tool for cleaning the oral cavity, and is used for cleaning teeth and tooth gaps in a pulse water flow impact mode.

In the related technical field, when the tooth irrigator works, the spherical rotor pump needs to be dried for a period of time to pump cleaning liquid into the spherical rotor pump, and the spherical rotor pump can be blocked due to the fact that the spherical rotor pump is dried for a long time.

Disclosure of Invention

The embodiment of the application provides a tooth-flushing device, and the water inlet pipeline of the spherical rotor pump of the tooth-flushing device is shorter, so that the spherical rotor pump is short in dry rotation time, the situation of blocking is not easy to generate, and the tooth-flushing device has higher reliability.

The tooth-flushing device comprises a shell, a motor and a spherical rotor pump, wherein the shell extends along a first direction and is provided with a containing cavity; the motor is arranged in the accommodating cavity; the spherical rotor pump is arranged in the accommodating cavity and is in transmission connection with the motor, wherein in the first direction, the distance between the spherical rotor pump and the top end of the shell is larger than the distance between the spherical rotor pump and the bottom end of the shell, and the top end is positioned on the upper part of the bottom end in the gravity direction.

Based on the tooth flushing device of the embodiment of the application, the distance between the spherical rotor pump and the top end of the shell is larger than the distance between the spherical rotor pump and the bottom end of the shell, namely, along the axial direction of the tooth flushing device, the spherical rotor pump is positioned at the middle lower part of the accommodating cavity, so that the middle lower part of the accommodating cavity can be used for shortening a pipeline required by cleaning water in the liquid storage cavity of the spherical rotor pump, the distance from a water inlet port of the spherical rotor pump to the liquid storage cavity is reduced, namely, the length of a required water inlet pipeline is reduced, the shorter the water inlet pipeline is, the shorter the pumping time of cleaning liquid from the liquid storage cavity to the rotor is, the cleaning liquid can timely cool and lubricate the spherical rotor pump, the failure probability of the spherical rotor pump is reduced, and the reliability of the tooth flushing device is further improved.

In some embodiments of the present application, the tooth irrigator further comprises a reservoir having a reservoir chamber in communication with the ball rotor pump, the reservoir being slidably connected to the housing to vary the volume of the reservoir chamber.

Based on the above embodiment, the liquid storage chamber is provided with the liquid storage chamber for containing cleaning liquid, and the user slides the liquid storage chamber relative to the shell to increase the volume of the liquid storage chamber when using the tooth cleaning device, so that the liquid storage chamber also stores more cleaning liquid, and slides the liquid storage chamber relative to the shell and reduces the volume of the liquid storage chamber when the user carries the tooth cleaning device, so that the tooth cleaning device is convenient to carry.

In some embodiments of the present application, a water drawing hose is disposed under the housing, the length of the water drawing hose is L1, the water drawing hose is communicated with the spherical rotor pump, the liquid storage tank is slidably connected with respect to the housing between a first position where the volume of the liquid storage cavity is maximum and a second position where the clear distance between the bottom wall of the liquid storage cavity and the bottom end of the housing is L2, L2-L1 is less than or equal to 5cm.

Based on the embodiment, when the liquid storage tank slides to the second position relative to the shell, the water drawing hose is extruded by the liquid storage tank to be bent, so that the shrinkage of the liquid storage tank is not influenced; when the liquid storage tank slides to the first position relative to the shell, the water drawing hose can be automatically unfolded to draw the cleaning liquid at the bottom of the liquid storage cavity due to elasticity of the water storage tank, and at the moment, L2-L1 is less than or equal to 5cm, so that overlong pipelines of the water drawing hose are avoided, further, the spherical rotor pump is caused to heat and lock the spherical rotor pump caused by overlong time for pumping the cleaning liquid from the liquid storage cavity into the spherical rotor pump, and the reliability of the tooth flushing device is improved.

In some embodiments of the present application, the tooth-rinsing device further comprises a liquid storage tank, the liquid storage tank is provided with a liquid storage cavity, the shell is provided with a water drawing pipe, the water drawing pipe stretches into the liquid storage cavity, the water drawing pipe is communicated with the spherical rotor pump, the length of the water drawing pipe is L3, the spherical rotor pump is connected with the machine body through a communicating pipe, and the length of the communicating pipe is L4, and L3+L4 is less than or equal to 15cm.

Based on the embodiment, the spherical rotor pump pumps the cleaning liquid from the liquid storage cavity to the spherical rotor pump through the water drawing pipe and the communicating pipe, and L3+L4 is less than or equal to 15cm, so that the pipeline of the water drawing pipe and the communicating pipe is not too long, and the cleaning liquid cannot be pumped into the spherical rotor pump quickly, namely, the cleaning liquid can be pumped into the spherical rotor pump quickly to cool and lubricate the spherical rotor pump, the failure probability of the spherical rotor pump is reduced, and the reliability of the tooth washer is further improved.

In some embodiments of the present application, the communicating pipe is configured as a water inlet hard pipe, one end of the water inlet hard pipe is communicated with the water inlet port of the spherical rotor pump, and the other end of the water inlet hard pipe is inserted into the water drawing pipe and is in sealing connection with the inner wall of the water drawing pipe.

Based on the embodiment, one end of the water inlet hard pipe is inserted into the water drawing pipe to be connected with the inner wall of the water drawing pipe in a sealing way, so that the cleaning liquid in the liquid storage cavity is pumped by the spherical rotor pump on the premise that the accommodating cavity is in a sealing state; and when the spherical rotor pump and the shell are assembled, the water inlet hard pipe and the water drawing pipe can play a role in positioning.

In some embodiments of the present application, the housing further has a liquid storage cavity, the accommodating cavity is separated from the liquid storage cavity by a partition board, a water drawing pipe is arranged on the partition board, the water drawing pipe stretches into the liquid storage cavity, the water drawing pipe is communicated with the spherical rotor pump, and a space between a free end of the water drawing pipe and the bottom of the liquid storage cavity is between 0.5mm and 5 mm.

Based on the embodiment, the distance between the free end of the water drain pipe and the bottom wall of the liquid storage cavity is more than or equal to 0.5mm, so that a gap for cleaning liquid to flow through is reserved between the free end of the water drain pipe and the bottom wall of the liquid storage cavity, and the spherical rotor pump can pump the cleaning liquid in the liquid storage cavity; the distance between the free end of the water drain pipe and the bottom wall of the liquid storage cavity is less than or equal to 5mm, so that the distance between the free end of the water drain pipe and the bottom wall of the liquid storage cavity is not too large, and excessive residual cleaning liquid in the liquid storage cavity is avoided.

In some embodiments of the present application, the distance between the bottom of the partition and the bottom of the reservoir is 30mm or less.

Based on the embodiment, the spherical rotor pump is made to be as close to the bottom wall of the liquid storage cavity as possible, so that the length of a pipeline required by the spherical rotor pump when cleaning liquid in the liquid storage cavity is pumped is shortened.

In some embodiments of the present application, the axis of the dip tube is parallel to the height direction of the dental impactor.

Based on the embodiment, the water drawing pipe is not bent, so that the cleaning liquid can flow smoothly with small resistance when passing through the water drawing pipe, and the cleaning liquid in the liquid storage cavity can be pumped by the spherical rotor pump conveniently.

In some embodiments of the present application, the spherical rotor pump is spaced from the inner wall of the housing along the circumference of the dental impactor.

Based on the above embodiment, vibration generated by the spherical rotor pump in the running process can not be transmitted to a user through the shell, so that the comfort level of the user when using the tooth irrigator is improved.

In some embodiments of the present application, the connecting shaft of the spherical rotor pump is fixedly connected coaxially with the output shaft of the motor.

Based on the embodiment, the connecting shaft of the spherical rotor pump is directly and coaxially fixedly connected with the output shaft of the motor, and the middle part of the connecting shaft is not provided with a transmission structure, so that the noise generated during the working of the tooth flushing device is further reduced.

In some embodiments of the present application, the reservoir is located at least partially below the receiving cavity along the height of the dental impactor, and the ball rotor pump is disposed adjacent to the bottom wall of the receiving cavity; or, the spherical rotor pump is arranged against the bottom wall of the accommodating cavity.

Based on the above embodiment, no matter the spherical rotor pump is arranged adjacent to the bottom wall of the accommodating cavity or is arranged abutting against the bottom wall of the accommodating cavity, the spherical rotor pump is closer to the liquid storage cavity below the accommodating cavity, the distance from the water inlet port of the spherical rotor pump to the liquid storage cavity is reduced, namely the length of a required water inlet pipeline is reduced, and the spherical rotor pump is convenient for pumping clean liquid in the liquid storage cavity; in addition, because the rotor is in a dry rotation state when the spherical rotor pump starts pumping water, the shorter the water inlet pipeline is, the shorter the pumping time for cleaning liquid to reach the rotor from the liquid storage cavity is, the cleaning liquid can cool and lubricate the spherical rotor pump, if the water inlet pipeline is longer, the dry rotation time of the spherical rotor pump is too long, the inner rotor of the pump body is heated and expanded, the spherical rotor pump is easy to be blocked, the failure probability of the spherical rotor pump is reduced, and the reliability of the tooth washer is further improved.

In some embodiments of the present application, the accommodating cavity forms an open mouth on the housing, the tooth-rinsing device further comprises a core structure, the core structure part is inserted into the accommodating cavity through the open mouth and covers the open mouth, and the core structure is fixedly connected with the motor and the spherical rotor pump.

Based on the above embodiment, the opening is used for at least assembling the spherical rotor pump into the accommodating cavity, and the movement structure is inserted into the accommodating cavity through the opening and covers the opening, so that the assembly of the movement can be completed and the sealing of the accommodating cavity can be realized.

In some embodiments of the present application, the deck structure includes a cover member at least partially within the receiving cavity and covering the open mouth; the mounting bracket is connected with the sealing cover piece, is positioned in the accommodating cavity, and is fixedly connected with the motor and the spherical rotor pump.

Based on the embodiment, the sealing cover piece is used for sealing the open mouth so that the accommodating cavity is a sealed space, and further the noise reduction effect of the shell on the spherical rotor pump is ensured; the mounting bracket is used for fixing the motor and the spherical rotor pump, and when the tooth-flushing device is assembled, the motor and the spherical rotor pump can be mounted on the mounting bracket at present, and the movement structure is inserted into the accommodating cavity, so that the motor, the spherical rotor pump and the shell are conveniently assembled.

In some embodiments of the present application, along the height direction of the tooth-rinsing device, the water inlet port of the spherical rotor pump is disposed at a position of the spherical rotor pump near the bottom wall of the accommodating cavity.

Based on the embodiment, the space between the spherical rotor pump and the bottom wall of the liquid storage cavity is shortened, namely, the water inlet pipeline required by the spherical rotor pump is shortened, so that the spherical rotor pump is convenient for pumping cleaning liquid in the liquid storage cavity.

In some embodiments of the present application, the motor and the ball rotor pump are aligned along a height direction of the dental irrigator.

Based on the above embodiments, the radial dimension of the dental irrigator can be reduced, and the user can hold the dental irrigator more comfortably.

In some embodiments of the present application, the dental irrigator further comprises a battery connected to the housing, and the battery and the motor are aligned along a height direction of the dental irrigator; or the shell is provided with an installation cavity, the battery is arranged in the installation cavity, and the battery and the motor are arranged along the horizontal direction of the tooth flusher.

Based on the embodiment, the batteries and the motor are arranged along the height direction of the tooth-flushing device, so that the radial length of the tooth-flushing device can be reduced, and a user can hold the tooth-flushing device conveniently; the battery and the motor are arranged along the horizontal direction of the tooth-flushing device, so that the axial length of the tooth-flushing device can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a structure of a dental rinse according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of the dental impactor of FIG. 1 taken along section A-A;

fig. 3 is a schematic view of a structure of a dental rinse according to another embodiment of the present application;

fig. 4 is a cross-sectional view of the dental impactor of fig. 3 taken along section B-B.

Reference numerals: 10. a liquid storage tank; 11. a liquid storage cavity; 21. a housing; 211. a receiving chamber; 212. an open mouth; 213. a partition plate; 22. a motor; 23. a spherical rotor pump; 24. a water drain pipe; 241. a first opening; 242. a free end of the drain pipe; 25. a communicating pipe; 26. a movement structure; 261. a cover member; 262. a mounting bracket; 27. and a battery.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In order to solve the above technical problems, please refer to fig. 1 and 2, or fig. 3 and 4, an embodiment of the present application provides a tooth-rinsing device, in which the water inlet pipeline of the spherical rotor pump 23 of the tooth-rinsing device is short, the dry rotation time of the spherical rotor pump 23 is short, the situation of blocking is not easy to occur, and the tooth-rinsing device has higher reliability.

Referring to fig. 1 and 2, or fig. 3 and 4, the tooth irrigator includes a housing 21, a motor 22, and a ball rotor pump 23, the housing 21 extending in a first direction, the housing 21 having a receiving cavity 211; the motor 22 is installed in the accommodating chamber 211; the spherical rotor pump 23 is arranged in the accommodating cavity 211, and the spherical rotor pump 23 is in transmission connection with the motor 22, wherein in the first direction, the distance between the spherical rotor pump 23 and the top end of the housing 21 is larger than the distance between the spherical rotor pump 23 and the bottom end of the housing 21, and the top end is positioned at the upper part of the bottom end in the gravity direction.

The housing 21 is used to form the accommodating cavity 211 to accommodate at least the spherical rotor pump 23, and in this embodiment, the shape and size of the housing 21 and the accommodating cavity 211, the material of the housing 21, the molding process of the accommodating cavity 211, etc. are not limited, and the material of the housing 21 may be made of any hard material. To enhance the ability of the housing 21 to reduce the noise of the spherical rotor pump 23, in some embodiments of the present application, the cavity wall of the receiving cavity 211 may be connected with a noise reduction layer, which may be a sound absorbing foam layer, a sound absorbing paint, a sound insulating paint, or the like.

The motor 22 is used for driving the spherical rotor pump 23 to pump water, so as to further reduce the noise generated during the operation of the tooth-washing device, in this embodiment, the motor 22 is disposed in the accommodating cavity 211, and thus, the motor 22 is enclosed in the accommodating cavity 211, so that the noise generated during the operation of the tooth-washing device can be reduced.

The spherical rotor pump 23 is used for pumping the cleaning liquid in the liquid storage chamber 11, and since the spherical rotor pump 23 is not in contact with the engagement surface of the transport medium, there is no impact of the engagement surface, and the noise is lower than other types of pumps and other types of rotor pumps.

According to the tooth cleaning device disclosed by the embodiment of the application, the distance between the spherical rotor pump 23 and the top end of the shell 21 is greater than the distance between the spherical rotor pump 23 and the bottom end of the shell 21, namely, along the axial direction of the tooth cleaning device, the spherical rotor pump 23 is positioned at the middle lower part of the accommodating cavity 211, so that the pipeline required by the spherical rotor pump 23 for pumping cleaning water in the liquid storage cavity 11 can be shortened when the spherical rotor pump 23 is positioned at the middle lower part of the accommodating cavity 211, the distance from the water inlet port of the spherical rotor pump 23 to the liquid storage cavity 11 is reduced, namely, the length of a required water inlet pipeline is reduced, the shorter the water inlet pipeline is, the shorter the pumping time of cleaning liquid from the liquid storage cavity 11 to the rotor is, the cleaning liquid can be timely cooled and lubricated for the spherical rotor pump 23, the failure probability of the spherical rotor pump 23 is reduced, and the reliability of the tooth cleaning device is further improved. Wherein, the accommodating chamber 211 is equally divided into three parts in the height direction of the dental irrigator, and the middle lower part of the accommodating chamber 211 refers to the middle part and the lower part of the three parts.

In addition, the noise of the spherical rotor pump is lower than that of a piston pump, a plunger pump or a diaphragm pump which are commonly used in the tooth flushing device, the user experience is good, the water outlet flow and pressure of the spherical rotor pump 23 are stable, the variation range is small, the water outlet of the tooth flushing device is uniform, and the comfort of the user is improved.

Referring to fig. 3 and 4, in some embodiments of the present application, the tooth-cleaning device further includes a liquid storage tank 10, the liquid storage tank 10 has a liquid storage chamber 11, the liquid storage chamber 11 is communicated with the spherical rotor pump 23, and the liquid storage tank 10 is slidably connected with the housing 21 to change the volume of the liquid storage chamber 11, so that the liquid storage chamber 11 is opened in the liquid storage tank 10 for containing cleaning liquid, a user slides the liquid storage tank 10 relative to the housing 21 to increase the volume of the liquid storage chamber 11 when using the tooth-cleaning device, so that the liquid storage chamber 11 also stores more cleaning liquid, and slides the liquid storage tank 10 relative to the housing 21 and reduces the volume of the liquid storage chamber 11 when the user carries the tooth-cleaning device, so that the tooth-cleaning device is convenient to carry.

The liquid storage tank 10 is provided with a liquid storage cavity 11 for storing cleaning liquid, in this embodiment, the shape and size of the liquid storage tank 10 and the liquid storage cavity 11, the material of the liquid storage tank 10, the molding process of the liquid storage cavity 11, and the like are not limited, the material of the liquid storage tank 10 can be made of any hard material, and in some embodiments of the present application, the liquid storage tank 10 is made of hard plastic, for example, phenolic plastic, polyurethane plastic, epoxy plastic, unsaturated polyester plastic, furan plastic, silicone resin, acryl resin, or the like; in other embodiments of the present application, the tank 10 is made of a hard metal or alloy, such as aluminum alloy, copper, or iron, etc.; for the reservoir 11 molding process, in some embodiments of the present application, the reservoir 10 may be injection molded, such that the reservoir 11 may be formed directly on the reservoir 10; in other embodiments of the present application, the reservoir 11 may be formed by cutting portions of the reservoir 10; as for the shape and size of the liquid storage chamber 11, any shape and size may be provided.

In some embodiments of the present application, a water drawing hose is disposed under the housing 21, the length of the water drawing hose is L1, the water drawing hose is communicated with the spherical rotor pump 23, the liquid storage tank 10 is slidably connected with respect to the housing 21 between a first position, in which the volume of the liquid storage cavity 11 is maximum, and a second position, in which the clear distance between the bottom wall of the liquid storage cavity 11 and the bottom end of the housing 21 is L2, L2-L1 is less than or equal to 5cm.

In the second position, the volume of the liquid storage cavity 11 is minimum, at this time, the bottom wall of the liquid storage cavity 11 is closest to the bottom end of the shell 21, and at this time, the water drawing hose is extruded by the liquid storage tank 10 and is bent, so that the shrinkage of the liquid storage tank 10 is not influenced; when the volume of the liquid storage cavity 11 is maximum in the first position, at this moment, the bottom wall of the liquid storage cavity 11 is the most original from the bottom end of the shell 21, the water drawing hose can be automatically unfolded to draw the cleaning liquid at the bottom of the liquid storage cavity 11 due to self elasticity, and at this moment, the length of the redundant section of the L2-L1 is less than or equal to 5cm, namely, the length of the redundant section of the water drawing hose is less than or equal to 5cm, the overlong whole pipeline of the water drawing hose is avoided, the spherical rotor pump 23 is further caused to heat and lock the spherical rotor pump caused by overlong time of drawing the cleaning liquid from the liquid storage cavity 11 into the spherical rotor pump 23, and the reliability of the tooth flushing device is improved.

Referring to fig. 1 and 2, or fig. 3 and 4, in some embodiments of the present application, the tooth cleaning device further includes a liquid storage tank 10, the liquid storage tank 10 has a liquid storage cavity 11, a casing 21 is provided with a water drawing pipe 24, the water drawing pipe 24 extends into the liquid storage cavity 11, the water drawing pipe 24 is communicated with a spherical rotor pump 23, the length of the water drawing pipe 24 is L3, the spherical rotor pump 23 is connected with a machine body through a communicating pipe 25, and the length of the communicating pipe 25 is L4, and l3+l4 is less than or equal to 15cm.

In this application embodiment spherical rotor pump 23 is through drawing in water pipe 24 and communicating pipe 25 follow liquid storage chamber 11 to spherical rotor pump 23 in, l3+l4 is less than or equal to 15cm guaranteed draw water pipe 24 and communicating pipe 25's pipeline and is unlikely to the overlength and lead to clean liquid can not be taken out to spherical rotor pump 23 fast, guaranteed promptly that clean liquid can be taken out to spherical rotor pump 23 in to reduce the temperature and lubricate spherical rotor pump 23, reduced spherical rotor pump 23 inefficacy probability, and then improved the reliability of this tooth flusher.

In the embodiments of the present application, the length, the pipe diameter, the material, etc. of the water drawing pipe 24 are not limited, and in some embodiments of the present application, the material of the water drawing pipe 24 is the same as the material of the housing 21, at this time, the water drawing pipe 24 and the housing 21 can be integrally injection molded, so that the housing 21 and the water drawing pipe 24 are convenient to process, and good sealing performance is provided therebetween. In other embodiments of the present application, the drain tube 24 and the housing 21 are sealed after they are separately formed.

In some embodiments of the present application, a filter screen is connected to the end of the drain pipe 24 away from the housing 21, and the filter screen covers the free end 242 of the drain pipe to filter the cleaning liquid entering the drain pipe 24 from the liquid storage chamber 11, so as to ensure the safety of the spherical rotor pump 23. Of course, the filter screen may also be disposed between the free end 242 of the drain tube and the water inlet port.

Referring to fig. 1 and 2, or fig. 3 and 4, in some embodiments of the present application, the housing 21 further has a liquid storage chamber 11, the accommodating chamber 211 is separated from the liquid storage chamber 11 by a partition 213, the partition 213 is provided with a water drain pipe 24, the water drain pipe 24 extends into the liquid storage chamber 11, the water drain pipe 24 is communicated with the ball rotor pump 23, a space between a free end of the water drain pipe 24 and a bottom of the liquid storage chamber 11 is between 0.5mm and 5mm, for example, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm or 4.5mm, and a space between the free end 242 of the water drain pipe and a bottom wall of the liquid storage chamber 11 is greater than or equal to 0.5mm, so that the ball rotor pump 23 can pump the cleaning liquid in the liquid storage chamber 11; the spacing between the free end 242 of the drain tube and the bottom wall of the liquid storage cavity 11 is less than or equal to 5mm, so that the spacing between the free end 242 of the drain tube and the bottom wall of the liquid storage cavity 11 is not too large, and excessive residual cleaning liquid in the liquid storage cavity 11 is avoided.

Referring to fig. 1 and 2, or fig. 3 and 4, in some embodiments of the present application, a distance between the bottom of the partition 213 and the bottom of the liquid storage chamber 11 is less than or equal to 30mm, for example, 25mm, 20mm, 15mm, 10mm, 5mm, etc., so that the spherical rotor pump 23 is located as close to the bottom wall of the liquid storage chamber 11 as possible, and the waterway between the spherical rotor pump 23 and the liquid storage chamber 11 is shortened.

Referring to fig. 1 and 2, or fig. 3 and 4, in some embodiments of the present application, the axis of the water drawing pipe 24 is parallel to the height direction of the tooth washer, and the water drawing pipe 24 is not bent, so that the resistance of the cleaning liquid passing through the water drawing pipe 24 is small, and the cleaning liquid in the liquid storage cavity 11 is conveniently drawn by the spherical rotor pump 23.

Referring to fig. 1 and 2, or fig. 3 and 4, in some embodiments of the present application, the communication pipe 25 is configured as a water inlet pipe, one end of the water inlet pipe is communicated with the water inlet port of the spherical rotor pump 23, and the other end of the water inlet pipe is inserted into the water drawing pipe 24 via the water drawing pipe and is connected with the inner wall of the water drawing pipe 24 in a sealing manner, such that one end of the water inlet pipe is inserted into the water drawing pipe to be connected with the inner wall of the water drawing pipe 24 in a sealing manner, the water inlet pipe is communicated with the water inlet port of the spherical rotor pump 23 and the water drawing pipe located in the accommodating cavity 211, i.e. the cleaning liquid in the liquid storage cavity 11 enters into the spherical rotor pump 23 via the free end 242 of the water drawing pipe, the water drawing pipe 24 and the water inlet pipe.

The water drain pipe is communicated with the water inlet port of the spherical rotor pump 23 through a water inlet hard pipe, the shape, the material and the like of the water inlet hard pipe are not limited in the embodiment of the application, but in order to facilitate the spherical rotor pump 23 to pump the cleaning liquid in the liquid storage cavity 11, in some embodiments of the application, the axis of the water inlet hard pipe is parallel to the height direction of the tooth washer, namely the water inlet hard pipe is configured as a straight pipe without bending; for the material of the water inlet hard tube, the water inlet hard tube in the embodiment of the application can be made of hard materials such as hard plastics, aluminum alloy and the like. In order to enable the water intake hard tube to be inserted into the water drawing tube 24, the water drawing tube 24 is formed with a first opening 241 in the bottom wall of the accommodating chamber 211, and the water intake hard tube is inserted into the water drawing tube 24 through the first opening 241.

Referring to fig. 3 and 4, in some embodiments of the present application, the ball rotor pump 23 is spaced from the inner wall of the housing 21 along the circumference of the tooth irrigator. The spherical rotor pump 23 can produce circumferential vibrations when the operation, if casing 21 and spherical rotor pump 23 contact, can directly transmit vibrations to casing 21, and the user is when using the tooth flusher, generally holds casing 21, and the vibrations of casing 21 transmit and can produce shake tingling to the user, separates spherical rotor pump 23 and casing 21, and its vibrations transmit to the user's palm after the bradyseism, can alleviate shake tingling, in addition, also can avoid producing collision noise, noise reduction between casing 21 and the spherical rotor pump 23. Preferably, the distance between the housing 21 and the spherical rotor pump 23 in the circumferential direction is greater than 0.5mm, because the spherical rotor pump 23 can vibrate slightly when running, and can collide with the housing when deviating from the original position, so that collision between the spherical rotor pump 23 and the housing 21 is avoided when the distance is too small. For example, the housing 21 is circumferentially spaced from the spherical rotor pump 23 by a distance of 0.5mm, 0.6mm, 0.7mm or 1mm.

Referring to fig. 1 and 2, or fig. 3 and 4, in some embodiments of the present application, the connecting shaft of the spherical rotor pump 23 is coaxially and fixedly connected to the output shaft of the motor 22, so that the connecting shaft of the spherical rotor pump 23 is directly and fixedly connected to the output shaft of the motor 22, and there is no transmission structure therebetween, thereby further reducing the noise generated during the operation of the tooth irrigator. In this embodiment, the connection shaft of the spherical rotor pump 23 and the output shaft of the motor 22 may be connected by means of fixing, clamping, bonding or welding, and the specific connection manner may be determined according to the material of the connection shaft of the spherical rotor pump 23 and the material of the output shaft of the motor 22.

Referring to fig. 1 and 2, or fig. 3 and 4, in some embodiments of the present application, the reservoir 11 is at least partially below the receiving cavity 211 along the height of the dental irrigator, and the ball rotor pump 23 is disposed adjacent to the bottom wall of the receiving cavity 211.

In other embodiments of the present application, the same as the above-described embodiments are provided except that "the spherical rotor pump 23 is disposed against the bottom wall of the accommodation chamber 211".

Whether the spherical rotor pump 23 is arranged adjacent to the bottom wall of the accommodating cavity 211 or is arranged abutting against the bottom wall of the accommodating cavity 211, the spherical rotor pump 23 is closer to the liquid storage cavity 11 below the accommodating cavity 211, so that the distance from the water inlet port of the spherical rotor pump 23 to the liquid storage cavity 11 is reduced, namely the length of a water inlet pipeline required by the spherical rotor pump 23 is reduced, and the spherical rotor pump 23 is convenient for pumping cleaning liquid in the liquid storage cavity 11; it will be appreciated that the closer the ball rotor pump 23 is to the bottom wall of the receiving chamber 211, the shorter the length of the water inlet line required for the ball rotor pump 23, and the shortest the length of the water inlet line required for the ball rotor pump 23 when the ball rotor pump 23 abuts the bottom wall of the receiving chamber 211.

In addition, because the rotor is in a dry rotation state when the spherical rotor pump 23 starts pumping water, the shorter the water inlet pipeline is, the shorter the pumping time for cleaning liquid to reach the rotor from the liquid storage cavity 11 is, the cleaning liquid can quickly enter the spherical rotor pump 23 to cool and lubricate the spherical rotor pump 23, if the water inlet pipeline is longer, the dry rotation time of the spherical rotor pump 23 is longer, the rotor of the spherical rotor pump 23 is heated and expanded, and the spherical rotor pump 23 is easy to be blocked, therefore, the spherical rotor pump 23 is arranged adjacent to the bottom wall of the accommodating cavity 211 or is abutted to the bottom wall of the accommodating cavity 211, the failure probability of the spherical rotor pump 23 is reduced, and the reliability of the tooth washer is further improved. Referring to fig. 3 and 4, in some embodiments of the present application, the accommodating cavity 211 forms an opening 212 on the housing 21, the tooth device further includes a movement structure 26, a part of the movement structure 26 is inserted into the accommodating cavity 211 through the opening 212 and covers the opening 212, the ball rotor pump 23 is fixedly connected with the movement structure 26, so that the opening 212 is used for at least assembling the ball rotor pump 23 into the accommodating cavity 211, and the movement structure 26 is inserted into the accommodating cavity 211 through the opening 212 and covers the opening 212 to complete the assembly of the movement and seal the accommodating cavity 211.

In some embodiments of the present application, deck structure 26 includes a cover 261 and a mounting bracket 262, cover 261 being at least partially within receiving cavity 211 and covering open mouth 212; the mounting bracket 262 is connected with the cover member 261, is positioned in the accommodating cavity 211 and is fixedly connected with the motor 22 and the spherical rotor pump 23, so that the cover member 261 is used for covering the open opening 212 to enable the accommodating cavity 211 to be a sealing space, and further the noise reduction effect of the shell 21 on the spherical rotor pump 23 is ensured; the mounting bracket 262 is used for fixing the motor 22 and the ball-shaped rotor pump, when the tooth-flushing device is assembled, the motor 22 and the ball-shaped rotor pump 23 can be mounted on the mounting bracket 262, and when the movement structure 26 is inserted into the accommodating cavity 211, the assembly of the motor 22, the ball-shaped rotor pump 23 and the shell 21 is facilitated.

The open mouth 212 is used for assembling the ball rotor pump 23 and the motor 22, and the shape and size of the open mouth 212 are not limited in the embodiment of the present application, as long as the mounting bracket 262 can be fitted into the accommodating chamber 211 through the open mouth 212. Referring to fig. 2, since the housing is disposed in the water storage tank,

the cover 261 is used for covering the open opening 212, and a portion of the cover portion inserted into the accommodating cavity 211 through the open opening 212 in the embodiment of the present application should be disposed corresponding to the accommodating cavity 211.

The mounting bracket 262 is used to support the motor 22 and the ball rotor pump 23, and the shape of the mounting bracket 262 is not limited in the embodiment of the present application, as long as the mounting bracket 262 can support the motor 22 and the ball rotor pump 23. In some embodiments of the present application, the mounting has a connecting cavity therebetween, and the outer surface of the body of the motor 22 is fixedly connected to the cavity wall of the connecting cavity.

Referring to fig. 1 and 2, or fig. 3 and 4, in some embodiments of the present application, along the height direction of the tooth cleaning device, the water inlet of the spherical rotor pump 23 is disposed at a position of the spherical rotor pump 23 close to the bottom wall of the accommodating cavity 211, so that the space between the spherical rotor pump 23 and the bottom wall of the liquid storage cavity 11 is shortened, that is, the water inlet pipeline required by the spherical rotor pump 23 is shortened, so that the spherical rotor pump 23 can conveniently pump the cleaning liquid in the liquid storage cavity 11.

Referring to fig. 1 and 2, or fig. 3 and 4, in some embodiments of the present application, the motor 22 and the ball-shaped rotor pump 23 are arranged along the height direction of the tooth-rinsing device, so that the radial dimension of the tooth-rinsing device can be reduced, and the user can hold the tooth-rinsing device more comfortably.

Referring to fig. 1 and 2, in some embodiments of the present application, the tooth-rinsing device further includes a battery 27, where the battery 27 and the motor 22 are arranged along the height direction of the tooth-rinsing device, so that the arrangement of the battery 27 and the motor 22 along the height direction of the tooth-rinsing device can reduce the radial length of the tooth-rinsing device, so as to facilitate the user to hold the tooth-rinsing device.

The battery 27 is electrically connected to the motor 22 for providing electric energy to the motor 22, and various types of batteries 27 may be used as the battery 27 in the embodiments of the present application, for example, an alkaline zinc-manganese battery 27, a zinc-manganese dry battery 27, an organic electrolyte battery 27, or a lithium battery 27, and in some embodiments of the present application, the battery 27 is a lithium battery 27 that stores more energy, has a small volume, and can be repeatedly charged and discharged.

Referring to fig. 3 and 4, in other embodiments of the present application, the housing 21 has a mounting cavity, the battery 27 is disposed in the mounting cavity, and the battery 27 and the motor 22 are arranged along the horizontal direction of the tooth-rinsing device, so that the battery 27 and the motor 22 are arranged along the horizontal direction of the tooth-rinsing device, and the axial length of the tooth-rinsing device can be reduced.

In the embodiment of the application, the gravity direction and the height direction of the tooth flusher are in the same direction when the tooth flusher is vertically placed.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, this is for convenience of description and simplification of the description, but does not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely used for illustration and are not to be construed as limitations of the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing description of the preferred embodiment of the present utility model is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. A dental irrigator, comprising:

a housing extending in a first direction, the housing having a receiving cavity;

the motor is arranged in the accommodating cavity;

the spherical rotor pump is arranged in the accommodating cavity and is in transmission connection with the motor,

wherein, in the first direction, the distance between the spherical rotor pump and the top end of the shell is greater than the distance between the spherical rotor pump and the bottom end of the shell, and the top end is positioned at the upper part of the bottom end in the gravity direction.

2. The tooth punch as claimed in claim 1, further comprising:

the liquid storage tank is provided with a liquid storage cavity which is communicated with the spherical rotor pump, and the liquid storage tank is connected with the shell in a sliding way so as to change the volume of the liquid storage cavity.

3. The dental caries device of claim 2 wherein a scooping hose is provided under the housing, the scooping hose having a length L1, the scooping hose being in communication with the ball rotor pump, the reservoir being slidably connected relative to the housing between a first position in which the reservoir volume is at a maximum and a second position in which the clearance between the bottom wall of the reservoir and the bottom end of the housing is L2, L2-L1 being less than or equal to 5cm.

4. The tooth punch as claimed in claim 1, further comprising:

the liquid storage tank is provided with a liquid storage cavity, the shell is provided with a water drawing pipe, the water drawing pipe stretches into the liquid storage cavity, the water drawing pipe is communicated with the spherical rotor pump, the length of the water drawing pipe is L3, the spherical rotor pump is connected with the water drawing pipe through a communicating pipe, and the length of the communicating pipe is L4, and L3+L4 is less than or equal to 15cm.

5. The tooth cleaner according to claim 4, wherein the communicating pipe is configured as a water inlet hard pipe, one end of the water inlet hard pipe is communicated with the water inlet port of the spherical rotor pump, and the other end of the water inlet hard pipe is inserted into the water drawing pipe and is connected with the inner wall of the water drawing pipe in a sealing manner.

6. The dental irrigator of claim 1, wherein the housing further has a liquid storage chamber, the receiving chamber and the liquid storage chamber being separated by a partition, the partition having a water drawing pipe extending into the liquid storage chamber, the water drawing pipe being in communication with the ball rotor pump, a spacing between a free end of the water drawing pipe and a bottom of the liquid storage chamber being between 0.5mm and 5 mm.

7. The dental rinse of claim 6 wherein the distance between the bottom of the partition and the bottom of the reservoir is 30mm or less.

8. The dental irrigator of claim 4 or 6, wherein the axis of the dip tube is parallel to the height of the dental irrigator.

9. The dental irrigator of claim 1 wherein the spherical rotor pump is spaced from an inner wall of the housing along a circumference of the irrigator.

10. The tooth-rinsing device as claimed in claim 1, wherein the connecting shaft of the ball-shaped rotor pump is fixedly connected coaxially with the output shaft of the motor.

11. The dental impactor of claim 6, wherein said reservoir is at least partially below said receiving chamber along a height of said dental impactor, said spherical rotor pump being disposed adjacent a bottom wall of said receiving chamber; or alternatively, the first and second heat exchangers may be,

the spherical rotor pump is arranged against the bottom wall of the accommodating cavity.

12. The dental irrigator of claim 1, wherein the receiving cavity forms an open mouth in the housing, the dental irrigator further comprising:

the movement structure is inserted into the accommodating cavity through the opening and covers the opening, and is fixedly connected with the motor and the spherical rotor pump.

13. The dental irrigator of claim 12, wherein the deck structure comprises:

a cover member at least partially disposed within the receiving cavity and covering the opening;

and the mounting bracket is connected with the sealing cover piece, is positioned in the accommodating cavity and is fixedly connected with the motor and the spherical rotor pump.

14. The dental irrigator of claim 1, wherein the inlet port of the ball rotor pump is located near the bottom wall of the receiving chamber along the height of the dental irrigator.

15. The dental irrigator of claim 1, wherein the motor and the ball rotor pump are aligned in a height direction of the dental irrigator.

16. The dental irrigator of claim 1, further comprising:

the battery and the motor are arranged along the height direction of the tooth flusher; or alternatively, the first and second heat exchangers may be,

the shell is provided with an installation cavity, the battery is arranged in the installation cavity, and the battery and the motor are arranged along the horizontal direction of the tooth flusher.