WO2023071947A1

WO2023071947A1 - Gas-liquid mixing pump structure and water flosser

Info

Publication number: WO2023071947A1
Application number: PCT/CN2022/126790
Authority: WO
Inventors: 张海波; 欧阳正良; 黄柳; 彭小健
Original assignee: 深圳朗特智能控制股份有限公司
Priority date: 2021-10-26
Filing date: 2022-10-21
Publication date: 2023-05-04
Also published as: CN114081651A; CN114081651B

Abstract

A gas-liquid mixing pump structure and a water flosser, the gas-liquid mixing pump structure comprising: a connecting piece (400), the connecting piece (400) being provided with a first cavity (410); a liquid supply assembly (100) for supplying liquid to the first cavity (410), the liquid supply assembly (100) being provided with a second cavity (110) communicating with the first cavity (410); a reciprocating assembly (300) for changing the pressure in the second cavity (110) so that the second cavity (110) acquires liquid or the second cavity (110) supplies liquid to the first cavity (410), the reciprocating assembly (300) being connected to the second cavity (110); and a gas supply assembly (200) for supplying gas to the first cavity (410) and driving the reciprocating assembly (300) to work, the gas supply assembly (200) being separately connected to the connecting piece (400) and the reciprocating assembly (300). The gas supply assembly (200) supplies gas to the first cavity (410) and at the same time drives the liquid supply assembly (100) to supply liquid to the first cavity (410). The liquid and gas in the first cavity (410) are mixed to form a high-pressure spray to clean the gingival sulcus and teeth, which reduces the amount of water consumed during cleaning, and correspondingly reduces the weight and volume of a water flosser, making the water flosser easy to carry.

Description

A gas-liquid mixing pump structure and dental flosser

technical field

The invention relates to the technical field of tooth and oral care, in particular to a gas-liquid mixing pump structure and a dental flosser.

Background technique

With the improvement of living standards, people pay more and more attention to the care of teeth and oral cavity. Among them, the gingival sulcus is the most important junction leading to the root of the teeth. Because it is not easy to clean, it is easy to hide dirt and cause tooth and gum diseases. At present, there are dental flossers on the market, which can effectively clean the gingival sulcus and interdental gaps. The principle is to clean the gingival sulcus and teeth through a water flow with a certain water pressure, but in the cleaning process, it takes a lot of time. Correspondingly, the flosser also needs to be equipped with a larger water tank, resulting in a larger volume of the flosser, which is not easy to carry.

Contents of the invention

The invention provides a gas-liquid mixing pump structure and a dental flosser to solve the problems of large water consumption and inconvenient portability of the existing dental flossers.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A gas-liquid mixing pump structure, comprising:

a connecting piece, the connecting piece is provided with a first cavity;

a liquid supply assembly for supplying liquid to the first cavity, the liquid supply assembly is provided with a second cavity communicating with the first cavity;

A reciprocating component is used to change the pressure in the second cavity, so that the second cavity can obtain liquid or supply liquid to the first cavity, and the reciprocating component is connected to the second cavity;

An air supply assembly for supplying gas to the first cavity and driving the reciprocating assembly to work, the air supply assembly is respectively connected to the connecting member and the reciprocating assembly.

Further, the air supply assembly includes:

a main body, the main body is provided with a third cavity, and the third cavity is connected to the reciprocating component;

an air pump, the air pump is arranged on the main body and connected to the third cavity;

A pressure relief valve, the pressure relief valve is arranged on the main body and connected to the first cavity and the third cavity respectively.

Further, the reciprocating components include:

a flexible piece, the flexible piece is respectively connected to the second cavity and the air supply assembly;

a reset member, the reset member is respectively connected to the flexible member and the liquid supply assembly, and is located in the second cavity;

When the flexible member moves toward the second cavity, the second cavity is in a positive pressure state, driving the liquid supply assembly to supply liquid to the first cavity;

When the flexible member moves away from the second cavity, the second cavity is in a negative pressure state, driving the liquid supply assembly to deliver liquid from the water tank to the second cavity.

Further, the flexible member is sequentially provided with a central part, a ring part and a connecting part from the center toward the edge, the reset member abuts against the central part, and the connecting part is respectively connected to the liquid supply assembly and the liquid supply assembly. gas components.

Further, the flexible member is provided with a mounting portion located at the center of the central portion and a limiting portion located on the central portion and spaced apart from the mounting portion, the mounting portion and the limiting portion are located at Inside the second cavity;

Wherein, the reset member is a spring, and part of the reset member is sleeved on the installation part and located between the installation part and the limiting part.

Further, the thickness of the connecting part and the thickness of the central part are both greater than the thickness of the ring part.

Further, the liquid supply component includes:

a first one-way valve, the first one-way valve is respectively connected to the first cavity and the second cavity;

a second one-way valve, used to allow the liquid in the water tank to enter the second cavity, and the second one-way valve is connected to the second cavity;

The housing, the first one-way valve and the second one-way valve are respectively arranged on the housing, the housing is connected with the reciprocating assembly and forms the second cavity.

Further, a channel communicating with the first cavity is provided in the housing, and the channel is respectively connected to the first one-way valve and the second one-way valve.

Further, a liquid stopper is provided at the air inlet of the first cavity.

A dental flosser, comprising the gas-liquid mixing pump structure described in any one of the above.

The beneficial effect of the present invention is that: the gas supply component supplies gas to the first cavity, and by driving the reciprocating component, the liquid supply component supplies liquid to the first cavity, and the first cavity forms a high-pressure spray after acquiring gas and liquid. The external output is used to clean the gingival sulcus and teeth, which is beneficial to reduce the water consumption during the cleaning process; at the same time, the weight and volume of the water tank configured on the dental flosser are reduced, thereby reducing the weight and volume of the dental flosser, making the The flosser is easy to carry.

Description of drawings

Fig. 1 is the structural representation of the gas-liquid mixing pump structure of the embodiment of the present invention;

Fig. 2 is the sectional view of A-A section among Fig. 1;

Fig. 3 is an enlarged view of detail C in Fig. 2;

Fig. 4 is the sectional view of B-B interface among Fig. 1;

5 is a schematic structural diagram of a flexible member according to an embodiment of the present invention;

Fig. 6 is a schematic structural view of the dental flosser according to the embodiment of the present invention.

Label description:

100. Liquid supply assembly; 110. Second cavity; 120. First one-way valve; 130. Second one-way valve; 140. Housing; 141. Channel;

200. Air supply assembly; 210. Main body; 211. Third cavity; 220. Air pump; 230. Pressure relief valve; 231. Valve core; 232. Spring;

300. Reciprocating motion component; 310. Flexible part; 311. Central part; 312. Surrounding part; 313. Connecting part; 314. Installation part; 315. Limiting part; 320. Reset part;

400. Connecting piece; 410. First cavity; 420. Liquid stopper; 500. Flosser shell; 600. Nozzle.

Detailed ways

In order to describe the technical content, achieved goals and effects of the present invention in detail, the following descriptions will be made in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 to FIG. 6 , the embodiment of the present invention is: a gas-liquid mixing pump structure, which is applied to a dental flosser to clean the gingival sulcus and teeth.

The gas-liquid mixing pump structure includes: a connecting piece 400, the connecting piece 400 is provided with a first cavity 410; a liquid supply assembly 100 for supplying liquid to the first cavity 410, the liquid supply assembly 100 A second cavity 110 communicating with the first cavity 410 is provided; a reciprocating assembly 300 is used to change the pressure in the second cavity 110 so that the second cavity 110 acquires liquid or makes the The second cavity 110 supplies liquid to the first cavity 410, and the reciprocating assembly 300 is connected to the second cavity 110; used to supply gas to the first cavity 410 and drive the reciprocating motion The air supply assembly 200 that the assembly 300 works, the air supply assembly 200 is respectively connected with the connecting member 400 and the reciprocating assembly 300 . Wherein, the liquid supply assembly 100 is connected to a water tank (not shown in the drawings), and the connecting piece 400 is a three-way pipe.

Please refer to FIG. 1 to FIG. 4 , in this embodiment, the working principle of the gas-liquid mixing pump structure is: the gas supply assembly 200 continuously inputs gas into the first cavity 410 , when the gas supply assembly 200 When the reciprocating assembly 300 is driven to move in the direction toward the second cavity 110, the inside of the second cavity 110 is in a positive pressure state, and if there is liquid in the second cavity 110, the The liquid supply assembly 100 delivers the liquid to the first chamber 410, otherwise the gas in the second chamber 110 is discharged to the first chamber 410; when the air supply assembly 200 drives the reciprocating assembly When the 300 moves away from the second cavity 110, the second cavity 110 is in a negative pressure state, and the liquid supply assembly 100 delivers the liquid in the water tank to the second cavity In 110, when the reciprocating component 300 is working in a working cycle, the first cavity 410 continuously receives liquid and gas, and the gas drives the liquid to form a high-pressure spray and output it to clean the gingival sulcus and teeth.

With this setting, using high-pressure spray instead of the water flow of the traditional flosser for cleaning can effectively reduce the water consumption during the cleaning process, and correspondingly reduce the volume and weight of the water tank equipped with the flosser, making the flosser easy to carry . The high-pressure spray produced by the flosser is more efficient in cleaning the gingival sulcus and teeth. Compared with the traditional flosser, the accumulation of fluid in the oral cavity is reduced, and the airflow of the high-pressure spray can massage the gums without irritation, which improves the comfort. In addition, the flosser does not need an additional pumping device, which further reduces the weight and volume of the flosser, which is beneficial to further improve the portability.

Specifically, the air supply assembly 200 includes: a main body 210, the main body 210 is provided with a third cavity 211, and the third cavity 211 is connected to the reciprocating assembly 300; an air pump 220, and the air pump 220 is located at The main body 210 is connected to the third cavity 211; the pressure relief valve 230 is arranged on the main body 210 and connected to the first cavity 410 and the third cavity respectively 211. Wherein, the air pump 220 is connected to the air inlet of the third cavity 211 through a gas delivery pipe (not marked in the drawings), and a sealing ring is provided at the connection between the connecting piece 400 and the main body 210 to ensure air tightness.

It can be understood that when the dental flosser is working, the air pump 220 continues to pump air to the third cavity 211, so that the reciprocating assembly 300 moves in a direction toward the second cavity 110. When the second cavity 110 is in a positive pressure state, the liquid supply assembly 100 outputs the liquid in the second cavity 110 to the first cavity 410 to balance the pressure in the second cavity 110 pressure; when the pressure of the third chamber 211 reaches the peak value, the gas in the third chamber 211 will push the pressure relief valve 230 open and output to the first chamber 410, the reciprocating The moving assembly 300 moves away from the second cavity 110, and at this time the second cavity 110 is in a negative pressure state, and the liquid supply assembly 100 outputs the liquid in the water tank to the second cavity body 110 to balance the pressure in the second cavity 110 again. When the gas supply assembly 200 performs a cycle of supplying and releasing gas to the third cavity 211 , the reciprocating motion assembly 300 performs a reciprocating motion so that the liquid supply assembly 100 continuously supplies the gas to the first cavity 410 . The gas in the first cavity 410 drives the liquid to form a high-pressure spray and output it outward. With this setup, the design is ingenious and the overall structure is optimized. In this embodiment, the air pump 220 is a vacuum air pump 220 .

Please refer to FIG. 3 , specifically, the pressure relief valve 230 includes: a valve core 231, the valve core 231 is connected to the air outlet of the third cavity 211; a spring 232, one end of the spring 232 abuts against the In the air inlet of the first cavity 410 , the other end of the first spring 232 abuts against the valve core 231 . Wherein, the valve core 231 is made of rubber. When the air pressure in the third cavity 211 reaches the peak value, the gas in the third cavity 211 pushes the valve core 231 away, and enters the third cavity 211, while the spring 232 presses The valve core 231 enables the valve core 231 to reset after the air pressure in the third cavity 211 decreases.

Please refer to FIG. 4 , in this embodiment, the reciprocating component includes: a flexible member 310, which connects the second cavity 110 and the air supply assembly 200 respectively; a reset member 320, the reset The member 320 connects the flexible member 310 and the liquid supply assembly 100 respectively, and is located in the second cavity 110; when the flexible member 310 moves toward the second cavity 110, the The second cavity 110 is in a positive pressure state, driving the liquid supply assembly 100 to supply liquid to the first cavity 410; when the flexible member 310 moves in a direction away from the second cavity 110, The inside of the second cavity 110 is in a negative pressure state, driving the liquid supply assembly 100 to deliver liquid from the water tank to the second cavity 110 . In this embodiment, the flexible member 310 is an integrated structure formed of a rubber material, and the flexible member 310 is respectively connected to the second cavity 110 and the third cavity 211; the reset member 320 is installed in the second cavity 110, one end of the reset member 320 abuts against the flexible member 310, and the other end of the reset member 320 abuts against the second cavity 110 and the flexible member. 310 is opposite to one of the sides.

It can be understood that when the flosser is working, the air pump 220 continues to pump air to the third cavity 211, so that the air pressure in the third cavity 211 increases, and the flexible member 310 moves along the direction The direction of the second cavity 110 moves, at this time, the inside of the second cavity 110 is in a positive pressure state, and the liquid supply assembly 100 is driven to output the liquid in the second cavity 110 to the first cavity 410 to balance the pressure in the second cavity 110; when the pressure in the third cavity 211 reaches a peak value, the pressure relief valve 230 is pushed open by the gas, and the pressure in the third cavity 211 The gas is output to the first cavity 410, and the air pressure decreases. At this time, the flexible member 310 is reset under the push of the reset member 320. At this time, the second cavity 110 is in a negative pressure state, and the drive The liquid supply assembly 100 outputs the liquid in the water tank to the second chamber 110 to balance the pressure in the second chamber 110 again. During the cycle operation of the gas-liquid mixing pump structure, the flexible member 310 continuously reciprocates, so that the first cavity 410 is continuously filled with gas and liquid to form a high-pressure spray. In addition, in other embodiments, by adjusting the volume ratio of the second cavity 110 and the third cavity 211 to adjust the ratio of gas and liquid, so as to obtain a comfortable degree of cleaning for the gums and teeth The best high pressure spray.

Please refer to FIG. 4 and FIG. 5 , further, the flexible member 310 is provided with a central portion 311 , a ring portion 312 and a connecting portion 313 in sequence from the center toward the edge, and the reset member 320 abuts against the central portion 311 , so The connecting portion 313 is respectively connected to the liquid supply assembly 100 and the air supply assembly 200 . Through this setting, the deformable amount of the flexible member 310 is increased, and the pressure change amount of the second cavity 110 is increased, thereby increasing the liquid intake amount of the second cavity 110 and the second cavity 110. The amount of liquid output from the cavity 110 to the first cavity 410 , and at the same time, the arrangement of the central portion 311 makes the deformation of the ring portion 312 consistent during movement.

Furthermore, the flexible member 310 is provided with a mounting portion 314 located at the center of the central portion 311 and a limiting portion 315 located on the central portion 311 and spaced apart from the mounting portion 314 , the mounting portion 314 and the limiting part 315 are located in the second cavity 110; wherein, the reset member 320 is a spring, and a part of the reset member 320 is sleeved on the installation part 314 and is located in the installation part 314 and the limiting part 315. By partially sheathing the reset member 320 on the mounting portion 314 and limiting the position by the limiting portion 315, the reset member 320 can be prevented from falling off during the movement of the flexible member 310, which is beneficial to ensure In addition to the overall stability, the second mounting portion 314 and the limiting portion 315 can increase the strength of the central portion 311 .

In this embodiment, the thickness of the connecting portion 313 and the thickness of the central portion 311 are both greater than the thickness of the ring portion 312. With this arrangement, the ring portion 312 is more likely to be elastically deformed, thereby increasing the The connecting portion 313 and the central portion 311 can ensure the overall strength of the flexible member 310 . Wherein, one end of the ring portion 312 close to the connecting portion 313 is bent toward the third cavity 211 to an end close to the central portion 311 .

Please refer to FIG. 4 , in this embodiment, the liquid supply assembly 100 includes: a first one-way valve 120 , and the first one-way valve 120 is respectively connected to the first cavity 410 and the second cavity 110 ; The second one-way valve 130 is used to make the liquid in the water tank enter the second cavity 110, and the second one-way valve 130 is connected to the second cavity 110; the housing 140, the first one-way The one-way valve 120 and the second one-way valve 130 are respectively disposed on the housing 140 , and the housing 140 is connected to the reciprocating assembly 300 and forms the second cavity 110 . Wherein, the first one-way valve 120 is respectively connected to the first cavity 410 and the water tank, and the liquid delivery pipe (not shown in the drawings) is connected between the first one-way valve 120 and the first cavity 410. logo) connection; the second one-way valve 130 and the water tank are connected through another liquid delivery pipe; the flexible member 310 is connected to the housing 140 to form the second cavity 110; the reset One end of the member 320 abuts against the flexible member 310 , and the other end of the reset member 320 abuts against the housing 140 .

It can be understood that, in this embodiment, when the flexible member 310 moves toward the direction of the second cavity 110 , the inside of the second cavity 110 is in a positive pressure state, and the first one-way valve 120 is closed. Open, the second one-way valve 130 is closed, if there is liquid in the second cavity 110, the liquid will be output to the first cavity 410, otherwise the first cavity 410 will be discharged to the first cavity 410. The air in the second cavity 110; when the flexible member 310 moves in a direction away from the second cavity 110, the second cavity 110 is in a negative pressure state, and the first one-way valve 120 is closed , the second one-way valve 130 is opened, so that the liquid in the water tank is output to the second cavity 110 . When the gas-liquid mixing pump structure is working, the second cavity 110 continuously receives the liquid in the water tank and supplies the liquid to the first cavity 410 . Through this setting, the second cavity 110 can output liquid and receive liquid respectively under the state of negative pressure and positive pressure. The design is ingenious, and the extra pumping device is reduced, thereby reducing the cost of the dental flosser. size and weight.

Further, the casing 140 is provided with a channel 141 communicating with the first cavity 410 , and the channel 141 is respectively connected with the first one-way valve 120 and the second one-way valve 130 . It can be understood that the water tank starts to supply liquid to the second cavity 110, and when the second cavity 110 is in a negative pressure state, when the liquid enters the second cavity 110, it will be partially located in the channel 141, then when the second cavity 110 is in a positive pressure state, part of the liquid in the channel 141 will be directly output to the first cavity 410, thereby reducing the flow to the first cavity 410 Start time for supplying liquid.

In this embodiment, the air inlet of the first cavity 410 is provided with a liquid stopper 420, and part of the liquid that is not sprayed will be blocked by the liquid stopper 420 and stay in the first cavity. 410, avoid entering the third cavity 211 until it mixes with the gas output from the third cavity 211 to form a high-pressure spray and output it outward.

Please refer to Fig. 6, this embodiment also discloses a dental flosser, including the gas-liquid mixing pump structure described in any one of the above, and also includes a dental flosser housing 500 and a nozzle 600, the gas-liquid mixing pump structure and the The nozzles 600 are respectively installed in the housing 500 of the dental flosser, and the nozzles 600 are connected to the connecting piece 400, so that the first cavity 410 is connected to the outside of the dental flosser, so as to facilitate the output of high-pressure spray to clean the gums grooves and teeth.

To sum up, in the gas-liquid mixing pump structure and dental flosser provided by the present invention, the gas supply component supplies gas to the first cavity while driving the liquid supply component to supply liquid to the first cavity, so that in the first cavity The liquid and gas are mixed to form a high-pressure spray to clean the gingival sulcus and teeth, which reduces the water consumption during the cleaning process, and correspondingly reduces the weight and volume of the flosser, making the flosser easy to carry. Compared with the traditional dental flosser, the high-pressure spray output by the dental flosser of the present invention can better remove food residues in the gingival sulcus and between the teeth, avoiding more fluid residues in the oral cavity when the user uses it, and is conducive to improving Comfort in use. In addition, the structure design of the gas-liquid mixing pump is ingenious, and the structure is stable and effective.

The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent transformations made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in related technical fields, are all included in the same principle. The patent protection scope of the present invention.

Claims

A gas-liquid mixing pump structure, characterized in that it comprises:

a connecting piece, the connecting piece is provided with a first cavity;

a liquid supply assembly for supplying liquid to the first cavity, the liquid supply assembly is provided with a second cavity communicating with the first cavity;

A reciprocating component is used to change the pressure in the second cavity, so that the second cavity can obtain liquid or supply liquid to the first cavity, and the reciprocating component is connected to the second cavity;

An air supply assembly for supplying gas to the first cavity and driving the reciprocating assembly to work, the air supply assembly is respectively connected to the connecting member and the reciprocating assembly.
The gas-liquid mixing pump structure according to claim 1, wherein the gas supply assembly comprises:

a main body, the main body is provided with a third cavity, and the third cavity is connected to the reciprocating component;

an air pump, the air pump is arranged on the main body and connected to the third cavity;

A pressure relief valve, the pressure relief valve is arranged on the main body and connected to the first cavity and the third cavity respectively.
The gas-liquid mixing pump structure according to claim 1, wherein the reciprocating parts include:

a flexible piece, the flexible piece is respectively connected to the second cavity and the air supply assembly;

a reset member, the reset member is respectively connected to the flexible member and the liquid supply assembly, and is located in the second cavity;

When the flexible member moves toward the second cavity, the second cavity is in a positive pressure state, driving the liquid supply assembly to supply liquid to the first cavity;

When the flexible member moves away from the second cavity, the second cavity is in a negative pressure state, driving the liquid supply assembly to deliver liquid from the water tank to the second cavity.
The gas-liquid mixing pump structure according to claim 3, wherein the flexible member is provided with a central part, a ring part and a connecting part in order from the center toward the edge, and the reset member abuts against the central part, so that The connection part is respectively connected to the liquid supply assembly and the air supply assembly.
The structure of the gas-liquid mixing pump according to claim 4, wherein the flexible member is provided with a mounting portion located in the center of the central portion and a limit position located on the central portion and spaced from the mounting portion part, the mounting part and the limiting part are located in the second cavity;

Wherein, the reset member is a spring, and part of the reset member is sleeved on the installation part and located between the installation part and the limiting part.
The gas-liquid mixing pump structure according to claim 4, characterized in that, the thickness of the connecting portion and the thickness of the central portion are both greater than the thickness of the ring portion.
The gas-liquid mixing pump structure according to claim 1, wherein the liquid supply assembly comprises:

a first one-way valve, the first one-way valve is respectively connected to the first cavity and the second cavity;

a second one-way valve, used to allow the liquid in the water tank to enter the second cavity, and the second one-way valve is connected to the second cavity;

The housing, the first one-way valve and the second one-way valve are respectively arranged on the housing, the housing is connected with the reciprocating assembly and forms the second cavity.
The gas-liquid mixing pump structure according to claim 7, wherein a channel communicating with the first cavity is provided in the housing, and the channel is respectively connected to the first one-way valve and the second one-way valve. one-way valve.
The structure of the gas-liquid mixing pump according to claim 1, characterized in that a liquid stopper is provided at the air inlet of the first cavity.
A dental flosser, characterized in that it comprises the gas-liquid mixing pump structure according to any one of claims 1-9.