WO2022068879A1

WO2022068879A1 - Nozzle structure of multifunctional water flosser, and water flosser consisting of same

Info

Publication number: WO2022068879A1
Application number: PCT/CN2021/121731
Authority: WO
Inventors: 张元浩
Original assignee: 上海挚纯电器有限公司
Priority date: 2020-09-30
Filing date: 2021-09-29
Publication date: 2022-04-07
Also published as: CN214857700U

Abstract

A nozzle structure of a multifunctional water flosser, and a water flosser consisting of same. The nozzle structure of the water flosser consist of an inner nozzle core (1) and a nozzle housing (2); the middle of an end surface of an end portion of the inner nozzle core (1) inwardly recessed to form a water gathering cavity (11), multiple tangential water inlet flow channels (12) are provided on the periphery of the water gathering cavity (11), and the center of the water gathering cavity (11) is provided with a columnar water inlet (13); the inner nozzle core (1) is provided with a first flow channel (14), and the first flow channel (14) has one end communicated with the columnar water inlet (13), and the other end used as a columnar water interface (15); the inner nozzle core (1) is further provided with a second flow channel (16), and the second flow channel has one end communicated with the tangential water inlet flow channels (12), and the other end used as an umbrella-shaped water interface (17); and a water inlet (22) is formed in the outer peripheral surface of the inner nozzle core (1) circumferentially corresponding to the nozzle housing (2), and the water inlet (22) is connected to either the columnar water interface (15) or the umbrella-shaped water interface (17) in an alternated manner.

Description

A multifunctional tooth cleaning device nozzle structure and its composed tooth cleaning device

technical field

The utility model relates to an oral cleaning appliance, in particular to a household tooth cleaning appliance.

Background technique

The dental scaler, also known as the dental irrigator, is a relatively new oral cleaning appliance. In Europe and the United States, the dental irrigator is a must-have hygiene product for many households. In recent years, with the improvement of living standards, dental scales have gradually entered more and more Chinese families.

Gingival sulcus and interdental space are two of the most difficult places to clean, with studies stating that "up to 40% of tooth surfaces cannot be cleaned with a toothbrush". Although dental floss (or toothpicks) can remove the deposits on the tooth surface, microscopically, the uneven tooth surface will still be unclean, and only a very thin layer of nutrient film is needed for bacterial growth, and the remaining dirt film Harmful effects are still partially present. In principle, the pressure water flow, which is powerful enough to destroy the dead and can drill into the hole, is the most ideal oral cleaning method. According to the research of relevant institutions in the United States, the pressure water column can rush into the gingival sulcus to a depth of 50-90%. The pressure water column can not only clean various gaps, holes and convex and concave surfaces, but also achieve microscopic thorough "cleaning" without Just a rough "clear" of the macro. In addition to the function of cleaning the teeth and mouth, the water flow also has a pressing effect on the gums, promotes the blood circulation of the gums, enhances the resistance of local tissues to diseases, and at the same time eliminates bad breath caused by poor oral hygiene.

The tooth scaler is usually composed of a water tank, a water pump and a nozzle, that is, a water pump is used to extract water from the water tank and sprayed out through the nozzle to form a high-speed water column. Functionally, the basic function is to form a columnar water flow to wash the gingival sulcus and interdental gap, but this single columnar water flow has too much impact on the gums and tongue coating, and the flushing area is too small, which is not comfortable to use. Therefore, it is now necessary to develop a spray head that can switch the water spray form, so as to expand the scope of application and versatility of the tooth scaler.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a multifunctional tooth cleaning device nozzle structure and a tooth cleaning device composed thereof, so as to increase the function of changing and switching the water flow.

In order to achieve the above purpose, the technical scheme of the nozzle structure adopted by the present utility model is: a multifunctional tooth cleaning device nozzle structure, which is composed of a nozzle inner core and a nozzle shell;

The main body of the inner core of the sprinkler head is a rotating body with an axis line, and the inner core of the sprinkler head is arranged inside the outer casing of the sprinkler head with the axis center line as the rotation center; the end face of one end of the inner core of the sprinkler head is concave to form A water collecting cavity, and the end surface of the inner core of the nozzle is provided with a plurality of tangential water inlet flow channels around the water collecting cavity. an acute angle formed between the water inlet channel and the main body of the inner core of the nozzle; the inner end of the tangential water inlet channel is communicated with the water collecting cavity; and the center of the water collecting chamber is provided with a columnar water inlet; the inner core of the nozzle There is a first flow channel, one end of the first flow channel is connected to the columnar water inlet, and the other end is located on the outer peripheral surface of the inner core of the nozzle as a columnar water interface; One end of the second flow channel is connected to the outer ends of each tangential water inlet flow channel, and the other end of the second flow channel is also located on the outer peripheral surface of the inner core of the nozzle as an umbrella-shaped water interface; Circumferentially arranged in columns;

The end of the spray head shell is provided with a water spray hole corresponding to the water collecting cavity, and the water spray hole is communicated with the water collecting cavity; and a water inlet is provided on the outer peripheral surface of the spray head inner core corresponding to the circumferential direction of the spray head shell, and the water inlet is connected to the water collecting cavity. The column-shaped water interface and the umbrella-shaped water interface are switched and connected in pairs.

In the above solution, the water spray hole is composed of a straight hole section and a conical hole section, and the straight hole section is connected to the water collecting cavity through the conical hole section; and the water spray hole is connected to the columnar inlet. The nozzle is coaxial, and the diameter of the straight hole section is larger than the diameter of the columnar water inlet.

In the above solution, the first flow channel is composed of a radial channel opened in the radial direction and an axial channel opened in the axial direction, and the outer port of the radial channel is the cylindrical water interface, and the axial The channel is arranged coaxially with the cylindrical water inlet; and the diameter of the radial channel is larger than the diameter of the axial channel.

In the above solution, the second flow channel is a groove provided on the outer peripheral surface of the inner core of the sprinkler head, and the notch of the groove on the peripheral surface of the inner core of the sprinkler head is the umbrella-shaped water interface.

In the above solution, a toggle portion protrudes radially from the outer circumference of the inner core of the spray head; the outer shell of the spray head is provided with a long avoidance groove corresponding to the toggle portion, and the toggle portion protrudes through the long avoidance groove.

Further, the outer casing of the sprinkler head is composed of a cylindrical body and one end cover, the inner core of the sprinkler head is provided with a sealing ring on the outer periphery of the end opposite to the water collecting cavity, and the inner core of the sprinkler head is connected with the cylinder body by the sealing ring. The wall is sealed and matched; the end cap sealing cover is also set on the end opposite to the water collecting cavity; the toggle part is also set on the end opposite to the water collecting cavity, and is located on the sealing ring of the inner core of the nozzle. between the end cap.

In order to achieve the above purpose, the technical scheme of the tooth cleaning device adopted by the present utility model is: a tooth cleaning device, comprising a spray head and a water pump, the spray head has a spray head structure, and the spray head structure is composed of a spray head inner core and a spray head shell; the The main body of the inner core of the sprinkler head is a rotating body with an axis line, and the inner core of the sprinkler head is arranged inside the outer casing of the sprinkler head with the axis center line as the rotation center; a water cavity, and the end face of the inner core of the nozzle is provided with a plurality of tangential water inlet flow channels around the water collecting cavity. The radial angle between the channel and the main body of the inner core of the sprinkler head; the inner end of the tangential water inlet channel is communicated with the water collecting cavity; and the center of the water collecting cavity is provided with a column-shaped water inlet; the inner core of the sprinkler head is provided with There is a first flow channel, one end of the first flow channel is connected to the columnar water inlet, and the other end is located on the outer peripheral surface of the inner core of the nozzle as a columnar water interface; and the inner core of the nozzle is also provided with a second channel, the second One end of the flow channel is connected to the outer end of each tangential water inlet flow channel, and the other end is also located on the outer peripheral surface of the inner core of the nozzle as an umbrella-shaped water interface; the column-shaped water interface and the umbrella-shaped water interface are in the circumferential direction of the inner core of the nozzle. Arranged in a row; a water spray hole is provided at the end of the nozzle shell corresponding to the water collecting cavity, and the water spray hole is communicated with the water collecting cavity; The water inlet is connected to the columnar water interface and the umbrella water interface in a one-to-two manner.

When the utility model is used, it is possible to switch the water spray form by rotating the inner core of the nozzle: when the water inlet is aligned with the columnar water interface, the high-pressure water leads to the columnar water inlet through the first flow channel to form a straight-line water column, and directly sprays through the water spray hole. When the water inlet is aligned with the umbrella-shaped water interface, the high-pressure water enters the second flow channel, and is sprayed into the water collecting cavity through each thin tangential water inlet flow channel , forms a vortex in the water collecting cavity, and then sprays out the water spray hole to form an umbrella-shaped water spray. It is suitable for rinsing and scouring the tongue coating and gums. The utility model increases the water flow form switching function of the umbrella-shaped water spray for scouring the tongue coating and the gums, which satisfies the needs of users for washing the tongue coating and the gums, and has a good market prospect.

Description of drawings

Fig. 1 is the exploded three-dimensional schematic diagram of the nozzle structure of the embodiment of the present utility model;

2 is a schematic diagram of a full cross-section of a nozzle structure in an in-line water column state according to an embodiment of the present invention;

Fig. 3 is the left side schematic diagram of Fig. 2;

4 is a schematic diagram of a full cross-section of the nozzle structure of the embodiment of the present utility model in an umbrella-shaped spray state;

Fig. 5 is the left side view schematic diagram of Fig. 2;

6 is a schematic front view of a nozzle inner core of a nozzle structure according to an embodiment of the present invention;

Fig. 7 is the bottom view schematic diagram of Fig. 6;

FIG. 8 is a schematic right side view of FIG. 6 .

In the above drawings: 1, the inner core of the nozzle; 11, the water collecting cavity; 12, the tangential water inlet flow channel; 13, the columnar water inlet; 14, the first flow channel; 141, the radial channel; , columnar water interface; 16, second flow channel; 17, umbrella-shaped water interface; 18, toggle part; 19, sealing ring; 2, nozzle shell; 21, water spray hole; 211, straight hole section; 212, cone 22, water inlet; 23, avoid long groove; 24, cylindrical body; 25, end cover. 3. Nozzle.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the utility model is further described:

Example 1: See Figure 1-8:

The structure of a multifunctional tooth scrubber nozzle, as shown in Figures 1-8, consists of a nozzle inner core 1 and a nozzle shell 2. The main body of the spray head inner core 1 is a rotating body with an axis line, and the spray head inner core 1 is rotatably arranged inside the spray head shell 2 with the axis line as the rotation center.

Referring to FIGS. 1-8 , the middle of the end face of one end of the inner core 1 of the nozzle is concave to form a water collecting cavity 11 , and the end surface of the inner core 1 of the nozzle is provided with a plurality of strips around the water collecting cavity 11 . The tangential water inlet flow channels 12 are arranged rotationally symmetrically around the axis, and the tangential water inlet flow channels 12 and the radial direction of the main body of the nozzle core 1 make an acute angle. The inner end of the tangential water inlet channel 12 communicates with the water collecting cavity 11 . And the center of the water collecting chamber 11 is provided with a columnar water inlet 13; the nozzle inner core 1 is provided with a first flow channel 14, one end of the first flow channel 14 is connected to the columnar water inlet 13, and the other end is used as a columnar water port 15 is located on the outer peripheral surface of the nozzle inner core 1; and the nozzle inner core 1 is also provided with a second flow channel 16, one end of the second flow channel 16 is connected to the outer end of each tangential water inlet flow channel 12, and its The other end is also located on the outer peripheral surface of the nozzle inner core 1 as an umbrella-shaped water port 17 ; ;

1-8, a water spray hole 21 is provided on the end of the nozzle housing 2 corresponding to the water collecting cavity 11, and the water spray hole 21 communicates with the water collecting cavity 11; A water inlet 22 is defined on the outer peripheral surface of the core 1 , and the water inlet 22 is connected to the columnar water port 15 and the umbrella water port 17 in a one-to-two manner.

Specifically, as shown in FIGS. 1-8 , the water spray hole 21 is composed of a straight hole section 211 and a conical hole section 212 , and the straight hole section 211 is connected to the water collecting cavity 11 through the conical hole section 212 ; In addition, the water spray hole 21 is coaxial with the columnar water inlet 13 , and the diameter of the straight hole section 211 is larger than the diameter of the columnar water inlet 13 .

Specifically, as shown in FIGS. 1-8 , the first flow channel 14 is composed of a radial channel 141 opened in the radial direction and an axial channel 142 opened in the axial direction. The outer port of the radial channel 141 is the For the cylindrical water port 15 , the axial channel 142 is arranged coaxially with the cylindrical water inlet 13 ; and the diameter of the radial channel 141 is larger than that of the axial channel 142 .

Specifically, as shown in FIGS. 1-8 , the second flow channel 16 is a groove provided on the outer peripheral surface of the inner core 1 of the nozzle, and the notch of the groove on the peripheral surface of the inner core 1 of the nozzle is the umbrella Shaped water port 17.

In order to facilitate the operation, as shown in FIGS. 1-8 , a toggle portion 18 protrudes radially on the outer circumference of the inner core 1 of the nozzle; the nozzle shell 2 is provided with a long escape groove corresponding to the toggle portion 18 23. The toggle portion 18 protrudes through the avoiding long groove. : The nozzle shell 2 is composed of a cylindrical body 24 and one end cover 25. The nozzle inner core 1 is provided with a sealing ring 19 on the outer periphery of the end opposite to the water collecting cavity 11. The sealing ring 19 is sealingly matched with the inner wall of the cylindrical body 24; the sealing cover of the end cover 25 is also arranged on the end opposite to the water collecting chamber 11; the toggle portion 18 is also arranged opposite to the water collecting chamber 11 On one end of the nozzle, it is located between the place where the sealing ring 19 of the inner core 1 of the nozzle is provided and the end cover 25 . In order to achieve the sealing effect and prevent water leakage.

When the nozzle structure of this embodiment is in use, the water spray form can be switched by rotating the nozzle core 1: when the water inlet 22 is aligned with the columnar water interface 15, as shown in 2 and 3, the high-pressure water will be led to the columnar through the first flow channel 14. The water inlet 13 forms an in-line water column, which is directly sprayed through the water jet hole 21 for flushing and scouring the gingival sulcus and interdental space; and when the water inlet 22 is aligned with the umbrella-shaped water interface 17, the high-pressure water enters the second flow channel 16. , sprayed into the water collecting cavity 11 through each thin tangential water inlet flow channel 12, forming a vortex in the water collecting cavity 11, and then sprayed through the water spray hole 21 to form an umbrella-shaped spray, which is suitable for rinsing and scouring tongue fur and gums , The speed of rinsing the tongue coating is fast and the effect is good, and the massage of the gums is also very comfortable. The utility model increases the water flow form switching function of the umbrella-shaped water spray for scouring the tongue coating and the gums, which satisfies the needs of users for washing the tongue coating and the gums, and has a good market prospect.

A tooth cleaning device includes a spray head 3, a water pump, a water tank, a casing, etc. The spray head has the above-mentioned spray head structure, so the tooth cleaning device also has the above-mentioned functional effects.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the technology to understand the content of the present invention and implement accordingly, and cannot limit the protection scope of the present invention with this. All equivalent changes or modifications made according to the spirit of the present invention shall be included within the protection scope of the present invention.

Claims

A multifunctional tooth cleaning device nozzle structure is characterized in that: it is composed of a nozzle inner core (1) and a nozzle outer shell (2); the main body of the nozzle inner core (1) is a rotating body with an axis line, and the nozzle The inner core (1) is rotatably arranged inside the nozzle casing (2) with its axis line as the rotation center; the end face of one end of the nozzle inner core (1) is concave in the middle to form a water collecting cavity (11), And the end face of the inner core (1) of the nozzle is provided with a plurality of tangential water inlet flow channels (12) around the water collecting cavity (11), and the plurality of tangential water inlet flow channels (12) are arranged around the axis of the shaft. The arrangement is rotationally symmetrical, and the tangential water inlet flow channel (12) forms an acute angle with the radial direction of the main body of the nozzle inner core (1); the inner end of the tangential water inlet flow channel (12) communicates with the water collecting cavity (11); and A columnar water inlet (13) is provided at the center of the water collecting cavity (11); a first flow channel (14) is provided on the inner core (1) of the nozzle, and one end of the first flow channel (14) is connected to the columnar water inlet (13), the other end of which is located on the outer peripheral surface of the nozzle inner core (1) as a columnar water port (15); One end of the second flow channel (16) is connected to the outer end of each tangential water inlet flow channel (12), and the other end is also located on the outer peripheral surface of the nozzle inner core (1) as an umbrella-shaped water interface (17). The interface (15) and the umbrella-shaped water interface (17) are arranged in a row in the circumferential direction of the inner core (1) of the nozzle;

A water spray hole (21) is provided on the end of the spray head housing (2) corresponding to the water collecting cavity (11), and the water spray hole (21) is communicated with the water collecting cavity (11); A water inlet (22) is provided on the outer peripheral surface corresponding to the inner core (1) of the nozzle upward, and the water inlet (22) is switched and connected to the columnar water interface (15) and the umbrella water interface (17) in a pair-to-two manner.
The nozzle structure according to claim 1, characterized in that: the water spray hole (21) is composed of a straight hole section (211) and a conical hole section (212), and the straight hole section (211) is tapered The hole section (212) is connected to the water collecting cavity (11); and the water spray hole (21) is coaxial with the columnar water inlet (13), and the diameter of the straight hole section (211) is larger than that of the columnar water inlet (13). The diameter of the water inlet (13).
The nozzle structure according to claim 1, characterized in that: the first flow channel (14) is composed of a radial channel (141) opened in the radial direction and an axial channel (142) opened in the axial direction, The outer port of the radial channel (141) is the cylindrical water port (15), and the axial channel (142) is coaxially arranged with the cylindrical water inlet (13); and the radial channel (141) is larger than the diameter of the axial passage (142).
The nozzle structure according to any one of claims 1-3, characterized in that: the second flow channel (16) is a groove provided on the outer peripheral surface of the nozzle inner core (1), and the groove is in the nozzle inner core (1) The notch on the peripheral surface is the umbrella-shaped water interface (17).
The nozzle structure according to claim 1, characterized in that: a toggle portion (18) protrudes radially from the outer circumference of the nozzle inner core (1); the nozzle shell (2) corresponds to the toggle portion (18) A long avoidance groove (23) is provided, and the toggle portion (18) protrudes through the long avoidance groove.
The sprinkler head structure according to claim 5, characterized in that: the sprinkler head casing (2) is composed of a cylindrical body (24) and an end cover (25), and the sprinkler head inner core (1) is connected with a water collecting cavity. (11) A sealing ring (19) is provided on the outer circumference of the opposite end, and the inner core (1) of the nozzle is sealed with the inner wall of the cylindrical body (24) by the sealing ring (19); the end cover (25) is sealed The cover is also arranged on the end opposite to the water collecting cavity (11); the toggle portion (18) is also arranged on the end opposite to the water collecting cavity (11), and is located at the end of the nozzle inner core (1). Set between the sealing ring (19) and the end cover (25).
A tooth scaler, comprising a spray head and a water pump, characterized in that: the spray head (3) has the spray head structure according to claim 1.
The dental scaler according to claim 7, characterized in that: the water spray hole (21) is composed of a straight hole section (211) and a conical hole section (212), and the straight hole section (211) is conical The shaped hole section (212) is connected to the water collecting cavity (11); and the water spray hole (21) is coaxial with the columnar water inlet (13), and the diameter of the straight hole section (211) is larger than The diameter of the cylindrical water inlet (13).
The dental scaler according to claim 7, wherein the first flow channel (14) is composed of a radial channel (141) opened in the radial direction and an axial channel (142) opened in the axial direction , the outer port of the radial channel (141) is the cylindrical water port (15), and the axial channel (142) is arranged coaxially with the cylindrical water inlet (13); and, the radial channel (141) ) is larger in diameter than the axial passage (142).
The tooth scaler according to any one of claims 7-9, characterized in that: the second flow channel (16) is a groove provided on the outer peripheral surface of the inner core (1) of the spray head, and the groove is in the spray head The notch on the peripheral surface of the core (1) is the umbrella-shaped water interface (17).