CN216812044U

CN216812044U - Pump for tooth flushing device

Info

Publication number: CN216812044U
Application number: CN202220228247.9U
Authority: CN
Inventors: 周光钦
Original assignee: Shenzhen Yunjiang Technology Co ltd
Current assignee: Shenzhen Yunjiang Technology Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-06-24
Anticipated expiration: 2032-01-27

Abstract

The utility model discloses a pump of a tooth flushing device, which comprises a motor and a punching device; the motor comprises a motor shell and a rotor arranged on the motor shell, and the rotor is in threaded connection with the motor shell; a first motor shaft extends out of one end of the rotor; the punch comprises a first plunger pump and a water tank; the first plunger pump comprises a first water inlet, a first water outlet, a first plunger and a first cylinder body; the first motor shaft is connected with the first plunger, and the first water inlet is communicated with the water tank; according to the utility model, the work of toothbrush head vibration and the punch is realized through the thread structure, and compared with the prior art, the toothbrush has the advantages of low noise, long service life and low cost.

Description

Pump for tooth flushing device

Technical Field

The utility model relates to the technical field of oral cavity cleaning, in particular to a pump of a tooth flushing device.

Background

The electric tooth-washing device is a novel oral cavity cleaning appliance, and the small comfortable and functional tooth-care electric appliance becomes a necessary sanitary product for many families. The water flushing device pressurizes water through the plunger pump, generates a superfine high-pressure pulse water column of 800-1600 times per minute, and designs the exquisite nozzle to enable the high-pressure pulse water column to be flushed to any position of an oral cavity without obstacles, wherein the high-pressure pulse water column comprises a toothbrush, dental floss and a toothpick, and the gaps between the teeth and the depths of the gums are not easy to reach. And the impact generated by the high-pressure pulse water flow of the tooth flushing device is a flexible stimulation, which not only can not hurt any part on the oral cavity or the face, but also has the function of massaging the gum.

At present, most of the tooth irrigators in the market adopt a motor which continuously rotates in a single direction to drive an eccentric gear to drive a piston connecting rod structure to do high-speed reciprocating motion in a plunger pump so as to pump water, as shown in patent CN 113530800A. Therefore, the noise generated when the tooth flusher works is large, the use experience is influenced, and the water pumping frequency cannot exceed 1600 times/minute generally.

Disclosure of Invention

The present invention is directed to a pump for a dental irrigator, which solves the above problems of the prior art. In order to achieve the purpose, the utility model provides the following technical scheme:

a pump of a tooth flusher comprises a motor and a punch; the motor comprises a motor shell and a rotor arranged on the motor shell, and the rotor is in threaded connection with the motor shell; a first motor shaft extends out of one end of the rotor; the punch comprises a first plunger pump and a water tank; the first plunger pump comprises a first water inlet, a first water outlet, a first plunger and a first cylinder body; the first motor shaft is connected with the first plunger, and the first water inlet is in through connection with the water tank.

In the utility model, the motor rotor is in threaded connection with the motor shell, the motor rotates back and forth to generate axial reciprocating motion, and the plunger is directly driven to reciprocate, so that a complex structure that the motor rotating in a single direction drives the eccentric gear to drive the piston connecting rod and the plunger to reciprocate is replaced.

Furthermore, a second motor shaft extends out of the other end of the rotor, the second motor shaft is connected with a toothbrush head, and the first water outlet penetrates through the toothbrush head.

Furthermore, the first motor shaft is provided with a multi-head external thread, the first plunger is provided with a multi-head internal thread, and the first motor shaft is matched with the multi-head external thread and the multi-head internal thread to realize the screw connection with the first plunger; the pump further comprises a first rotation stopping structure, and the first rotation stopping structure is used for limiting the first plunger to rotate.

Further, the rotation stopping structure comprises an elliptical outer profile of the plunger and an elliptical inner wall of the cylinder. Further, a second motor shaft extends out of the other end of the rotor; the ram further comprises a second plunger pump; the second plunger pump comprises a second water inlet, a second water outlet, a second plunger and a second cylinder body; the second plunger is connected with the second motor shaft; the second water inlet is communicated with the water tank, and the first water outlet is communicated with the second water outlet.

Further, the rotor is provided with the external screw thread, the motor casing is provided with the internal thread, the rotor pass through external screw thread, interior screw-thread fit in order to realize with the motor casing spiro union.

Further, the motor is a magnetic suspension motor.

The utility model has the beneficial effects that: according to the utility model, when the motor rotates back and forth, the toothbrush head vibration and the punching device work through the thread structure, and compared with the prior art, the toothbrush head vibration and punching device has the advantages of low noise, long service life and low cost.

Drawings

Fig. 1 is a cross-sectional view of a first embodiment of the present invention.

Fig. 2 is a cross-sectional view of a second embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1, a pump for a dental irrigator comprises a motor 1 and a punch; the motor 1 comprises a motor shell 11 and a rotor 12 arranged on the motor shell 11, wherein the rotor 12 is in threaded connection with the motor shell 11; a first motor shaft 13 extends out of one end of the rotor 12; the punching device comprises a first plunger pump 2 and a water tank; the first plunger pump 2 comprises a first water inlet 21, a first water outlet 22, a first plunger 23 and a first cylinder 24; the first motor shaft 13 is connected with the first plunger 23, and the first water inlet 21 is connected with the water tank in a penetrating way.

Furthermore, a second motor shaft 14 extends out of the other end of the rotor 12, the second motor shaft 14 is connected with the toothbrush head 4, and the first water outlet 22 penetrates through the toothbrush head 4.

In fig. 1, the rotor and the motor casing are screwed at one end of the toothbrush head, and in practice, the rotor and the motor casing can also be arranged at one end of the plunger.

Further, the first motor shaft 13 is provided with a multi-head external thread, the first plunger 23 is provided with a multi-head internal thread, and the first motor shaft 13 is in threaded connection with the first plunger 23 through the cooperation of the multi-head external thread and the multi-head internal thread; a rotation stop structure is arranged between the first plunger 23 and the first cylinder 24 for limiting the rotation of the first plunger 23.

Further, the rotation stopping structure comprises an elliptical outer profile part of the plunger and an elliptical inner wall of the cylinder. The plunger can also be provided with a vertical groove which is matched with a pin on the shell to realize the rotation stopping function.

In this embodiment, when the motor 1 rotates back and forth after inputting current, the first motor shaft 13 and the second motor shaft 14 will rotate back and forth to generate vibration; moreover, as the rotor 12 is in threaded connection with the motor casing 11, under the action of the threaded structure, the rotor 12 can axially slide back and forth along the motor casing 11, and further drives the first motor shaft 13 and the second motor shaft 14 extending out of the two ends of the rotor 12 to axially slide back and forth; at the moment, the second motor shaft 14 slides axially back and forth to drive the toothbrush head 4 to vibrate in multiple directions, so that the cleaning effect is improved; at the same time, the back and forth axial sliding of the first motor shaft 13 drives the first plunger 23 to reciprocate, so as to realize the water inlet from the water tank and the water outlet from the toothbrush head 4.

In practical applications, there are two modes; one of the modes is: the toothbrush head 4 is operated, and the punch is not operated; at this time, the motor 1 can be operated at a high frequency (for example, 1.5 ten thousand per minute), at this time, the toothbrush head 4 vibrates at the high frequency, and the first water inlet 21 and the first water outlet 22 cannot be opened and closed at a high speed by the punch at the high frequency, so that the plunger pump cannot be in a water pumping state. The water way can also be closed by arranging a mechanical or electronic switch on the water way. The other mode is as follows: the brush head 4 and the punch are simultaneously operated at a low frequency (5 k/min), and since the stroke of the brush head 4 is not consistent with that of the punch (i.e., the stroke of the brush head 4 is lower than that of the plunger), the stroke of the first plunger 23 is increased by a multi-start thread structure in order to ensure smooth overall operation. This tooth punching device pump realizes the work of 4 vibrations of toothbrush head and punching press through helicitic texture, for prior art, has the noise low, long service life and advantage with low costs.

Further, the rotor 12 is provided with external threads, the motor casing 11 is provided with internal threads, and the rotor 12 is matched with the motor casing 11 through the external threads and the internal threads to realize the screw connection; when the motor 1 rotates back and forth, the rotor 12 can axially slide back and forth along the motor shell 11.

Further, the motor 1 is a magnetic suspension motor to realize the axial sliding of the rotor 12 back and forth.

Example two:

as shown in fig. 2, a pump for a dental irrigator comprises a motor 1 and a punch; the motor 1 comprises a motor shell 11 and a rotor 12 arranged on the motor shell 11, wherein the rotor 12 is in threaded connection with the motor shell 11; a first motor shaft 13 extends out of one end of the rotor 12; the punching device comprises a first plunger pump 2 and a water tank; the first plunger pump 2 comprises a first water inlet 21, a first water outlet 22, a first plunger 23 and a first cylinder 24; the first motor shaft 13 is connected with the first plunger 23, and the first water inlet 21 is connected with the water tank in a penetrating way.

Further, a second motor shaft 14 extends out of the other end of the rotor 12; the punch further comprises a second plunger pump 3; the second plunger pump 3 includes a second water inlet 31, a second water outlet 32, a second plunger 33 and a second cylinder 34; the second plunger 33 is connected with the second motor shaft 14; the second water inlet 31 is connected with the water tank in a penetrating way, and the first water outlet 22 is communicated with the second water outlet 32.

In this embodiment, after the current is input, when the motor 1 rotates back and forth, because the rotor 12 is screwed with the motor housing 11, under the effect of the screw structure, the rotor 12 can slide back and forth axially along the motor housing 11, and drive the first motor shaft 13 and the second motor shaft 14 to also slide back and forth axially, and further drive the first plunger 23 and the second plunger 33 to reciprocate, so that the first water inlet 21 and the second water inlet 31 can simultaneously feed water from the water tank, and the first water outlet 22 and the second water outlet 32 are communicated together to discharge water, so as to increase the flushing water volume.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A tooth flusher pump is characterized in that: comprises a motor and a punch; the motor comprises a motor shell and a rotor arranged on the motor shell, and the rotor is in threaded connection with the motor shell; a first motor shaft extends out of one end of the rotor; the punch comprises a first plunger pump and a water tank; the first plunger pump comprises a first water inlet, a first water outlet, a first plunger and a first cylinder body; the first motor shaft is connected with the first plunger, and the first water inlet is in through connection with the water tank.

2. The dental irrigator pump of claim 1 wherein: the other end of the rotor stretches out to be provided with a second motor shaft which is connected with a toothbrush head, and the first water outlet is communicated with the toothbrush head.

3. The dental irrigator pump of claim 1 wherein: the first motor shaft is provided with a multi-head external thread, the first plunger is provided with a multi-head internal thread, and the first motor shaft is matched with the multi-head external thread and the multi-head internal thread to realize the screw connection with the first plunger; the pump further comprises a first rotation stopping structure, and the first rotation stopping structure is used for limiting the first plunger to rotate.

4. The dental irrigator pump of claim 3 wherein: the rotation stopping structure comprises an elliptical outer profile part of the plunger and an elliptical inner wall of the cylinder body.

5. The dental irrigator pump of claim 1 wherein: a second motor shaft extends out of the other end of the rotor; the ram further comprises a second plunger pump; the second plunger pump comprises a second water inlet, a second water outlet, a second plunger and a second cylinder body; the second plunger is connected with the second motor shaft; the second water inlet is communicated with the water tank, and the first water outlet is communicated with the second water outlet.

6. The dental irrigator pump of claim 1 wherein: the rotor is provided with the external screw thread, the motor casing is provided with the internal thread, the rotor pass through external screw thread, internal thread cooperation in order to realize with the motor casing spiro union.

7. The dental irrigator pump of claim 1 wherein: the motor is a magnetic suspension motor.