Water-air oral irrigator

Abstract

The utility model provides a water vapor oral irrigator which comprises a piston assembly, a piston cylinder, a water inlet assembly and a water outlet assembly, the piston cylinder is provided with an inner cavity, a first opening, a second opening and a third opening, the first opening, the second opening and the third opening are all communicated with the inner cavity, and the piston assembly is connected with the piston cylinder in a relative movement mode through the first opening. The water inlet assembly is connected with the second opening in an aligned mode and provides cleaning liquid, the water inlet assembly comprises a water inlet valve block, the water inlet valve block covers the second opening and is used for controlling the second opening to be opened or closed, and the water outlet assembly is connected with the third opening in an aligned mode and comprises a water outlet valve block, and the water outlet valve block covers the third opening and is used for controlling the third opening to be opened or closed. The water outlet valve plate is used for controlling the third opening to be opened or closed and provided with an air inlet hole, and the inner cavity of the piston cylinder communicates with the atmosphere through the air inlet hole. The air inlet hole is formed in the water outlet valve plate, so that air is sucked through the air inlet hole in the process that the inner cavity of the piston cylinder generates negative pressure to suck water, and water-air mixing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water flossers, in particular to a water-gas water flosser. Background Art

[0002] With the improvement of living standards, the cleaning ability of ordinary toothbrushes is no longer sufficient for comprehensive and effective cleaning of teeth. The emergence of water flossers provides a cleaning tool with stronger cleaning ability. Ordinary water flossers only use high-pressure pumps to form high-pressure water flow to impact teeth for cleaning. If you want a good cleaning effect, you need to increase the pressure and increase the flow rate of the water flow. However, when the flow rate of the water flow is too high, the impact force on the oral cavity is too great, which is easy to cause damage to the oral cavity.

[0003] Therefore, how to design a water flosser with high cleaning ability and high comfort is a problem that technicians in this field need to solve. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a water vapor oral irrigator, which absorbs air while absorbing water to form bubble water, thereby improving cleaning power and comfort.

[0005] The utility model provides a water-gas oral irrigator, comprising: a piston assembly, a piston cylinder, a water inlet assembly and a water outlet assembly, the piston cylinder is provided with an inner cavity, a first opening, a second opening and a third opening, the first opening, the second opening and the third opening are all communicated with the inner cavity, the piston assembly is relatively movably connected to the piston cylinder through the first opening, the piston assembly is used to generate negative pressure in the inner cavity or compress the volume of the inner cavity, the water inlet assembly is aligned with the second opening and connected to provide cleaning liquid, the water inlet assembly comprises a water inlet valve sheet and a water inlet member, the water inlet member is aligned with the second opening and connected to the second The openings are aligned and connected and a cleaning liquid is provided, the water inlet valve sheet covers the second opening, the water inlet valve sheet is used to control the second opening to be opened or closed, the water outlet assembly is aligned and connected with the third opening, the water outlet assembly includes a water outlet valve sheet, the water outlet valve sheet covers the third opening, the water outlet valve sheet is used to control the third opening to be opened or closed, the water outlet valve sheet is provided with an air inlet hole, the air inlet hole connects the inner cavity of the piston cylinder with the atmosphere, the water inlet valve sheet can only open the second opening inwardly relative to the inner cavity, and the water outlet valve sheet can only open the third opening outwardly relative to the inner cavity;

[0006] When negative pressure is generated in the inner cavity, air enters the inner cavity through the air inlet hole (6), and cleaning liquid enters the inner cavity through the second opening (32) and mixes with the air. When the inner cavity is compressed, the air and cleaning liquid in the inner cavity are ejected outward through the third opening.

[0007] In one embodiment, the air inlet area of ​​the air inlet hole is less than or equal to 4% of the water inlet area of ​​the water inlet member.

[0008] In one embodiment, the water outlet valve plate is provided with a single air inlet hole.

[0009] In one embodiment, the water outlet valve plate is provided with a plurality of air inlet holes.

[0010] In one embodiment, the air inlet hole is a cross-shaped cutout.

[0011] In one embodiment, the water outlet assembly further includes a water outlet pipeline, the water outlet pipeline is detachably connected to the third opening, and the water outlet valve plate is arranged between the water outlet pipeline and the third opening.

[0012] In one embodiment, the water-gas oral irrigator further comprises a nozzle, and the nozzle is connected to the water outlet pipeline.

[0013] In one embodiment, the water-gas oral irrigator further comprises a power assembly, and the power assembly is transmission-connected to the piston assembly.

[0014] In one embodiment, the power assembly includes a motor and a transmission gear, the motor is in transmission connection with the transmission gear, the motor is used to drive the transmission gear to rotate, the transmission gear is provided with an eccentric portion, the eccentric portion extends along the axial direction of the transmission gear, and the eccentric portion is arranged deviating from the axis of the transmission gear, the eccentric portion is fixedly connected to the piston assembly, and the piston assembly is located in a plane perpendicular to the axis of the transmission gear, thereby driving the piston assembly to move through the eccentric portion.

[0015] In one embodiment, the water-gas oral irrigator further comprises a shell, the shell is provided with a containing cavity, and the power assembly and the piston assembly are both arranged in the containing cavity.

[0016] In the water-vapor water flosser provided by the embodiment of the utility model, an air inlet hole is provided on the water outlet valve sheet. When the piston assembly generates negative pressure in the inner cavity of the piston cylinder, water is sucked into the inner cavity of the piston cylinder from the second opening by the negative pressure, and air is sucked through the air inlet hole at the same time, so that water and air enter the inner cavity of the piston cylinder together and finally mix to form bubble water. In the utility model, the cleaning ability of the water flosser is improved by forming bubble water through water-vapor mixing. At the same time, the water flow containing bubbles can reduce the impact force on the oral cavity and improve the comfort. In addition, in the utility model, water-vapor mixing is achieved by providing an air inlet hole on the water outlet valve sheet without the need for additional components, so that the structure of the entire water-vapor water flosser is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is an exploded view of the water-gas water flosser according to an embodiment of the utility model.

[0019] Figure 2 It is a cross-sectional view of the water-gas oral irrigator according to an embodiment of the utility model.

[0020] Figure 3 It is a front view of the water outlet valve plate of the utility model embodiment.

[0021] Figure 4 This is a front view of a water outlet valve plate according to another embodiment of the utility model.

[0022] Figure 5 It is a schematic structural diagram of the piston cylinder of an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0026] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0027] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0028] Please refer to Figures 1 to 5 , which shows a water-gas water flosser provided in an embodiment of the utility model, comprising: a piston assembly 2, a piston cylinder 3, a water inlet assembly 4 and a water outlet assembly 5, the piston cylinder 3 is provided with an inner cavity, a first opening 31, a second opening 32 and a third opening 33, the first opening 31, the second opening 32 and the third opening 33 are all connected to the inner cavity, the piston assembly 2 is relatively movably connected to the piston cylinder 3 through the first opening 31, the piston assembly 2 is used to generate negative pressure in the inner cavity or compress the volume of the inner cavity, the water inlet assembly 4 is aligned with the second opening 32 and connected to provide cleaning liquid, and the water inlet assembly 4 includes a water inlet valve sheet 41 and a water inlet member 42 The water inlet member 42 is aligned with the second opening 32 and connected to provide cleaning liquid. The water inlet valve plate 41 covers the second opening 32. The water inlet valve plate 41 is used to control the second opening 32 to be opened or closed. The water outlet assembly 5 is aligned with the third opening 33 and connected. The water outlet assembly 5 includes a water outlet valve plate 51. The water outlet valve plate 51 covers the third opening 33. The water outlet valve plate 51 is used to control the third opening 33 to be opened or closed. The water outlet valve plate 51 is provided with an air inlet hole 6. The air inlet hole 6 connects the inner cavity of the piston cylinder 3 with the atmosphere. The water inlet valve plate 41 can only open the second opening 32 inwardly relative to the inner cavity, and the water outlet valve plate 51 can only open the third opening 33 outwardly relative to the inner cavity.

[0029] When negative pressure is generated in the inner cavity, air enters the inner cavity through the air inlet 6, and cleaning liquid enters the inner cavity through the second opening 32 and mixes with the air. When the inner cavity is compressed, the air and cleaning liquid in the inner cavity are sprayed outward through the third opening.

[0030] In this embodiment, the piston assembly 2 cooperates with the piston cylinder 3. The piston assembly 2 includes a piston and a connecting rod, wherein the piston penetrates into the piston cylinder 3 through the first opening 31 and fits tightly with the inner wall of the piston cylinder 3. The connecting rod is hinged to the piston, thereby driving the piston to move relative to the piston cylinder 3. The second opening 32 of the piston cylinder 3 is controlled by the water inlet assembly 4, and the water inlet assembly 4 includes a water inlet valve plate 41 and a water inlet pipeline 42, wherein the water inlet valve plate 41 controls the opening or closing of the second opening 32. Because the water inlet valve plate 41 can only be opened inward relative to the inner cavity, and the water outlet valve plate 51 can only be opened outward relative to the inner cavity, in this embodiment, the water inlet valve plate 41 and the water outlet valve plate 51 are both one-way valves to achieve the one-way passage function.

[0031] The cleaning liquid includes water or mouthwash, etc., which can clean the oral cavity. In this embodiment, the cleaning liquid is water.

[0032] When the piston moves relative to the piston cylinder 3 in the direction of sliding out from the first opening 31, the inner cavity volume of the piston cylinder 3 increases. Because the three outlets of the piston cylinder 3 are sealed by the piston assembly 2, the water inlet assembly 4 and the water outlet assembly 5 respectively, the inner cavity volume of the piston cylinder 3 increases when the air content in the inner cavity of the piston cylinder 3 remains unchanged, which will reduce the air pressure. In this way, a negative pressure less than the standard atmospheric pressure is generated, thereby generating suction in the inner cavity of the piston cylinder 3. At this time, the water inlet valve plate 41 opens the second opening 32 inwardly relative to the inner cavity, and sucks water from the water inlet pipeline 42 into the inner cavity of the piston cylinder 3. The water outlet valve plate 51 cannot be opened inwardly relative to the inner cavity, so it is in a closed state.

[0033] Because the water outlet valve plate 51 in this embodiment is provided with an air inlet hole 6, even after negative pressure is generated in the inner cavity of the piston cylinder 3, when the water outlet valve plate 51 is in a closed state, air can still be sucked in from the air inlet hole 6 of the water outlet valve plate 51, and then mixed with the water sucked in by the second opening 32 to form bubble water with stronger cleaning power. Preferably, in this embodiment, the air inlet area of ​​the air inlet hole 6 is less than or equal to 10% of the water inlet area of ​​the water inlet member 42.

[0034] Although the existence of the air inlet hole 6 will reduce the suction force generated by the inner cavity of the piston cylinder 3, the air inlet area of ​​the air inlet hole 6 is less than or equal to 10% of the water inlet area of ​​the water inlet member 42. Therefore, the air entering through the air inlet hole 6 is limited, and the inner cavity of the piston cylinder 3 can still generate negative pressure, which can ensure sufficient suction force for water absorption. The water inlet area of ​​the water inlet member 42 refers to the area of ​​water flow on a plane perpendicular to the flow direction of water flow when water enters from the second opening 32 after the water inlet valve plate 41 opens the second opening 32.

[0035] Finally, when the piston moves relative to the piston cylinder 3 along the direction extending from the first opening 31 , the bubble water in the inner cavity of the piston cylinder 3 is pushed out from the third opening 33 by the movement of the piston.

[0036] In the present application, by opening an air inlet hole 6 in the water outlet valve plate 51, the water flosser can absorb air while absorbing water, thereby forming bubble water with stronger cleaning power in the inner cavity of the piston cylinder 3, thereby improving the cleaning ability and comfort of the entire water vapor water flosser.

[0037] In another embodiment, the air inlet channel can also be opened on the side of the nozzle and connected to the water outlet channel, and the inner diameter of the water outlet channel at the position where the air inlet channel is opened becomes smaller. When the water in the piston cylinder is pushed by the piston, it is ejected from the piston cylinder at high speed and enters the nozzle. When the high-speed water flow passes through the position where the air inlet channel is opened, negative pressure is generated by the Bernoulli principle, and air is sucked in, thereby achieving water-gas mixing. In this case, only the air inlet hole 6 is opened on the water outlet valve plate 51, so that the air inlet channel and the water outlet channel share a pipe, and there is no need to add other components or additional holes, making the entire structure simpler.

[0038] In one embodiment, the air inlet area of ​​the air inlet hole 6 is less than or equal to 4% of the water inlet area of ​​the water inlet member 42. Because when the inner cavity of the piston cylinder 3 generates negative pressure, the greater the difference between the negative pressure and the standard atmospheric pressure, the greater the suction force generated. If the air inlet hole 6 is provided on the water outlet valve plate 51, when the inner cavity of the piston cylinder 3 generates negative pressure, air enters the inner cavity of the piston cylinder 3 through the air inlet hole 6, increasing the pressure in the inner cavity of the piston cylinder 3, thereby reducing the difference with the standard atmospheric pressure, and further reducing the suction force.

[0039] The larger the air intake area of ​​the air intake hole 6 is, the more air will enter from the air intake hole 6 when negative pressure is generated in the inner cavity of the piston cylinder 3, and the smaller the suction force will be. In this embodiment, the air intake area of ​​the air intake hole 6 is less than or equal to 4% of the water intake area of ​​the water inlet member 42, so that the air intake area of ​​the air intake hole 6 is small enough, and the suction force generated in the inner cavity of the piston cylinder 3 is also small enough, so that the water absorption process of the water flosser is basically not affected.

[0040] In one embodiment, the water outlet valve plate 51 is provided with a single air inlet hole 6. Figure 3 , an air inlet hole 6 is provided at the center of the water outlet valve plate 51, and this opening method can make the processing simpler and more convenient. In another embodiment, the water outlet valve plate 51 is provided with multiple air inlet holes 6. At the same time, the number of air inlet holes 6 is not limited to a single one, and can also be multiple. Multiple air inlet holes 6 are arranged on the water outlet valve plate 51 at intervals and evenly, and the total air inlet area of ​​the multiple air inlet holes 6 is still less than or equal to 4% of the water inlet area of ​​the water inlet member 42. Then, when the total area is the same, the more the number of air inlet holes 6, the smaller the area of ​​each air inlet hole 6. The smaller the area of ​​the air inlet hole 6, the smaller the volume of the bubbles entering from the air inlet hole 6, and the better the cleaning effect of the bubble water formed.

[0041] In one embodiment, the air inlet 6 is a cross-shaped cutout. Figure 4 A cross-shaped air inlet 6 is provided at the center of the water outlet valve sheet 51. When air enters from the air inlet 6, it can only enter from the cross-shaped gap, which can reduce the volume of bubbles entering the inner cavity of the piston cylinder 3.

[0042] In one embodiment, the water outlet assembly 5 further includes a water outlet pipeline 52, which is detachably connected to the third opening 33, and the water outlet valve plate 51 is arranged between the water outlet pipeline 52 and the third opening 33. In one embodiment, the water-gas dental flosser further includes a nozzle 7, which is connected to the water outlet pipeline 52.

[0043] Please refer to Figure 1 and Figure 2 , the water outlet pipe 52 is partially inserted into the third opening 33 of the piston cylinder 3. And the water outlet valve plate 51 is arranged between the water outlet pipe 52 and the piston cylinder 3. When the piston assembly 2 pushes the bubble water in the inner cavity of the piston cylinder 3 out of the third opening 33, the bubble water flows into the water outlet pipe 52. At the same time, the end of the water outlet pipe 52 away from the piston cylinder 3 is connected to the nozzle 7, and the bubble water flowing into the water outlet pipe 52 flows to the nozzle 7 via the water outlet pipe 52. Finally, it is sprayed to the designated position along the nozzle 7. In this embodiment, the water outlet pipe 52 is detachably connected to the third opening 33, which can make disassembly and assembly more convenient.

[0044] In one embodiment, the water-vapor oral irrigator further comprises a power assembly 8, which is in transmission connection with the piston assembly 2. In one embodiment, the power assembly 8 comprises a motor 81, a transmission gear 82 and a gear shaft 83, the motor 81 is in transmission connection with the transmission gear 82, the motor 81 is used to drive the transmission gear 82 to rotate, the transmission gear 82 is provided with an eccentric portion, the eccentric portion extends along the axis direction of the transmission gear 82, and the eccentric portion is arranged to deviate from the axis of the transmission gear 82, the eccentric portion is fixedly connected to the piston assembly 2, and the moving direction of the piston assembly 2 is located in a plane perpendicular to the axis of the transmission gear 82, so that the piston assembly 2 is driven to approach or move away from the first opening 31 through the eccentric portion. In one embodiment, the water-vapor oral irrigator further comprises a housing 9, the housing 9 is provided with a receiving chamber, and the power assembly 8 and the piston assembly 2 are both arranged in the receiving chamber.

[0045] Please refer to Figure 1 and Figure 2 In this embodiment, the power is provided by the power assembly 8, which drives the piston assembly 2 to move relative to the piston cylinder 3 to achieve the action of absorbing and spraying water. The power assembly 8 is fixedly connected to the connecting rod, driving the connecting rod to rotate, thereby driving the piston to move in the piston cylinder 3 through the connecting rod.

[0046] The power assembly 8 includes a motor 81 and a transmission gear 82, and the motor 81 is in transmission connection with the transmission gear 82. The power output from the motor 81 drives the transmission gear 82 to rotate. The transmission gear 82 is provided with an eccentric portion, and then one end of the connecting rod is sleeved on the eccentric portion of the transmission gear 82, and the connecting rod is driven to rotate around the axis of the transmission gear 82 through the transmission gear 82. Because the connecting rod is located in a plane perpendicular to the axis of the transmission gear 82, the connecting rod moves closer to or away from the first opening 31 under the drive of the transmission gear 82. Finally, under the drive of the connecting rod, the movement of the piston is realized.

[0047] At the same time, the connecting rod is hinged with the piston. The piston is connected with the first opening 31 and seals the first opening 31. Because the piston is limited by the first opening 31, when the connecting rod rotates around the axis of the transmission gear 82, it can only drive the piston to move closer to or away from the first opening 31.

[0048] In this embodiment, the power assembly 8 is also protected by a housing 9, and a through hole is also provided on the housing 9. The gear shaft 83 passes through the transmission gear 82 along the axis, and finally passes through the through hole on the housing 9. The gear shaft 83 passes through the through hole on the housing 9 and is supported by the housing 9. The transmission gear 82 is supported by the gear shaft 83 to ensure the stability of the transmission gear 82 when it rotates.

[0049] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the attached claims.

Claims

1. A water-gas water flosser, characterized in that: include: A piston assembly (2), a piston cylinder (3), a water inlet assembly (4) and a water outlet assembly (5); the piston cylinder (3) is provided with an inner cavity, a first opening (31), a second opening (32) and a third opening (33); the first opening (31), the second opening (32) and the third opening (33) are all in communication with the inner cavity; the piston assembly (2) is connected to the piston cylinder (3) via the first opening (31) so as to be relatively movably connected; the piston assembly (2) is used to generate negative pressure in the inner cavity or compress the volume of the inner cavity; the water inlet assembly (4) is aligned with the second opening (32) and connected to provide cleaning liquid; the water inlet assembly (4) comprises a water inlet valve plate (41) and a water inlet member (42); the water inlet member (42) is aligned with the second opening (32) and connected to the inner cavity; A cleaning liquid is provided, the water inlet valve plate (41) covers the second opening (32), the water inlet valve plate (41) is used to control the second opening (32) to be opened or closed, the water outlet assembly (5) is aligned and connected with the third opening (33), the water outlet assembly (5) comprises a water outlet valve plate (51), the water outlet valve plate (51) covers the third opening (33), the water outlet valve plate (51) is used to control the third opening (33) to be opened or closed, the water outlet valve plate (51) is provided with an air inlet hole (6), the air inlet hole (6) connects the inner cavity of the piston cylinder (3) with the atmosphere, the water inlet valve plate (41) can only open the second opening (32) inwardly relative to the inner cavity, and the water outlet valve plate (51) can only open the third opening (33) outwardly relative to the inner cavity; When negative pressure is generated in the inner cavity, air enters the inner cavity through the air inlet hole (6), and cleaning liquid enters the inner cavity through the second opening (32) and mixes with the air. When the inner cavity is compressed, the air and cleaning liquid in the inner cavity are ejected outward through the third opening.

2. The water-gas water flosser according to claim 1, characterized in that: The air inlet area of ​​the air inlet hole (6) is less than or equal to 4% of the water inlet area of ​​the water inlet member (42).

3. The water-gas water flosser according to claim 2, characterized in that: The water outlet valve plate (51) is provided with a single air inlet hole (6).

4. The water-gas water flosser according to claim 2, characterized in that: The water outlet valve plate (51) is provided with a plurality of air inlet holes (6).

5. The water-gas water flosser according to claim 2, characterized in that: The air inlet (6) is a cross-shaped incision.

6. The water-gas water flosser according to claim 1, characterized in that: The water outlet assembly (5) further comprises a water outlet pipeline (52), the water outlet pipeline (52) being detachably connected to the third opening (33), and the water outlet valve plate (51) being arranged between the water outlet pipeline (52) and the third opening (33).

7. The water-gas water flosser according to claim 6, characterized in that: The water-gas dental flosser further comprises a nozzle (7), and the nozzle (7) is in communication with the water outlet pipeline (52).

8. The water-gas water flosser according to claim 1, characterized in that: The water-gas dental flosser further comprises a power assembly (8), and the power assembly (8) is drivingly connected to the piston assembly (2).

9. The water-gas oral irrigator according to claim 8, characterized in that: The power assembly (8) comprises a motor (81) and a transmission gear (82), wherein the motor (81) is in transmission connection with the transmission gear (82), and the motor (81) is used to drive the transmission gear (82) to rotate. The transmission gear (82) is provided with an eccentric portion, and the eccentric portion extends along the axial direction of the transmission gear (82), and the eccentric portion is arranged to deviate from the axis of the transmission gear (82). The eccentric portion is fixedly connected to the piston assembly (2), and the movement direction of the piston assembly (2) is located in a plane perpendicular to the axis of the transmission gear (82), so that the piston assembly (2) is driven to approach or move away from the first opening (31) through the eccentric portion.

10. The water-gas oral irrigator according to claim 8, characterized in that: The water-gas oral irrigator further comprises a housing (9), the housing (9) being provided with a receiving chamber, the power assembly (8) and the piston assembly (2) being both arranged in the receiving chamber.

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