A water jet switchable oral irrigator

Abstract

The application provides a water jet switchable oral irrigator, comprising an oral irrigator body, a water outlet nozzle and a water path switch mechanism; the water outlet nozzle is provided with a first water path and a second water path, and the water path switch mechanism is used for connecting one of the first water path and the second water path with a water outlet end of a piston assembly in the oral irrigator body and disconnecting the other from the water outlet end of the piston assembly; the water outlet nozzle has a water outlet hole connected with the first water path and the second water path, and the water jet of the water outlet hole is not the same when the first water path or the second water path is connected with the water outlet end of the piston assembly in the oral irrigator body. The oral irrigator can realize water jet switching without replacing the water outlet nozzle.

Description

Technical Field

[0001] The present invention relates to personal care devices, in particular to oral care devices. Background Art

[0002] Brushing teeth is the most common dental care practice. However, most toothbrushes cannot allow toothpaste to penetrate deeply into the gaps, grooves, and cracks of the occlusal surface. Therefore, an oral irrigator is needed as an auxiliary tool to clean the teeth. An oral irrigator generally includes an irrigator body and a nozzle that is detachably connected to the irrigator body. The irrigator body includes a water pump that can suck the cleaning fluid and spray the cleaning fluid through the nozzle at a certain pressure, thereby cleaning areas such as the gaps between teeth and the gingival sulcus that are difficult to reach with a toothbrush. In addition, the oral irrigator can allow the cleaning fluid to enter the gaps of the occlusal surface to neutralize the acidic substances therein and restore the calcium content of the enamel that has been decalcified.

[0003] The water splash effects of products currently on the market are relatively simple, and pulsed water is generally used to achieve high-pressure teeth flushing. However, the existing pulsed water has too much impact on some consumers, affecting the use effect. In addition, in order to achieve multiple water spray switching, the existing water irrigators need to replace the corresponding water nozzles. However, too many water nozzles bring many problems to users. It is not easy for users to store the extra water nozzles, and it is also difficult to remember the water sprays corresponding to different water nozzles. In the end, users still use only one water nozzle, making the water spray switching function a decoration. Summary of the Invention

[0004] The main technical problem to be solved by the present invention is to provide a water flosser that can switch the water spray without replacing the water nozzle.

[0005] In order to solve the above technical problems, the present invention provides a water irrigator with a water spray switching function, comprising: a water irrigator body, a water outlet nozzle and a water channel switching mechanism;

[0006] The water outlet nozzle is provided with a first water channel and a second water channel, and the water channel switching mechanism is used to connect one of the first water channel and the second water channel to the water outlet end of the piston assembly in the oral irrigator body, and disconnect the other water channel from the water outlet end of the piston assembly;

[0007] The water outlet nozzle has a water outlet hole connecting the first water channel and the second water channel. When the first water channel or the second water channel is connected to the water outlet end of the piston assembly in the oral irrigator body, the water sprays from the water outlet hole are different.

[0008] In a preferred embodiment: the water path switching mechanism includes an operating member and a sealing member, and the sealing member is linked to the operating member. The operating member is operated to drive the sealing member to connect one of the first water path and the second water path with the water outlet end of the piston assembly in the oral irrigator body, and disconnect the other one from the water outlet end of the piston assembly.

[0009] In a preferred embodiment: the sealing member includes a ball, a first spring and a mounting bracket; the mounting bracket is linked to the operating member; one end of the first spring is fixedly connected to the mounting bracket, and the other end pushes the ball to the water inlet end of the first waterway or the second waterway.

[0010] In a preferred embodiment, a guide surface is provided between the first water channel and the second water channel, and when the ball moves from the first water channel to the second water channel or from the second water channel to the first water channel under the drive of the operating member, the guide surface squeezes the ball to compress the first spring.

[0011] In a preferred embodiment: the sealing member includes a sealing gasket and a switching shaft, and the switching shaft is linked to the operating member; the operating member drives the switching shaft to move axially along the switching shaft, so that the sealing gasket seals the water inlet end of the first waterway or the second waterway.

[0012] In a preferred embodiment, the operating member is a button and a second spring sleeved on the button, and the first water channel and the second water channel are sequentially arranged along the pressing direction of the button.

[0013] In a preferred embodiment, the water outlet nozzle has a conical water outlet portion, and the water outlet hole is arranged at the apex of the water outlet portion.

[0014] In a preferred embodiment, the top angle of the cone is 30°-180°.

[0015] In a preferred embodiment: the top angle of the cone is 35°-55°

[0016] In a preferred embodiment, the first water channel is connected to the water outlet along an eccentric direction.

[0017] In a preferred embodiment, the second water channel is connected to the water outlet along a coaxial direction.

[0018] In a preferred embodiment, a water pipe is provided in the water outlet nozzle, and the gaps in the water pipe and between the inner wall of the water outlet nozzle and the water pipe form the first water channel and the second water channel respectively.

[0019] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0020] The present invention provides a water irrigator with a water-spray switching function. The user can use a water-path switching mechanism to open either the first or second waterpath within the water outlet nozzle while closing the other. This allows for different water inlet methods and, consequently, different water sprays from the water outlet to meet user needs. The user does not need to replace the water outlet nozzle; simply operating the water-path switching mechanism allows for water-spray switching, making it convenient, quick, and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an appearance diagram of the oral flushing device in the preferred embodiment 1 of the present invention;

[0022] Figure 2 This is an exploded view of the water flosser in preferred embodiment 1 of the present invention;

[0023] Figure 3 This is a cross-sectional view of the first water channel of the oral irrigator in preferred embodiment 1 of the present invention when it is open;

[0024] Figure 4 This is a cross-sectional view of the second water channel of the oral irrigator in preferred embodiment 1 of the present invention when it is open;

[0025] Figure 5 This is an appearance diagram of the water outlet nozzle in the preferred embodiment 1 of the present invention;

[0026] Figure 6 2 is a cross-sectional view of the water outlet nozzle in the preferred embodiment 1 of the present invention;

[0027] Figure 7 This is a cross-sectional view from another angle of the water outlet nozzle in the preferred embodiment 1 of the present invention;

[0028] Figure 8 This is another angled cross-sectional view of the water outlet nozzle in the preferred embodiment 1 of the present invention;

[0029] Figure 9 This is a cross-sectional view of the first water channel of the oral irrigator in preferred embodiment 2 of the present invention when it is open;

[0030] Figure 10 This is a cross-sectional view of the second water channel of the oral irrigator in preferred embodiment 2 of the present invention when it is opened. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted 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. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example 1

[0035] refer to Figures 1-8 This embodiment provides a water flosser with a water spray switching function, comprising: a water flosser body 1, a water outlet nozzle 2, and a water channel switching mechanism 3;

[0036] The water outlet nozzle 2 is provided with a first water channel 21 and a second water channel 22, and the first water channel 21 and the second water channel 22 are respectively provided with a water inlet end. The water channel switching mechanism 3 is used to connect one of the first water channel 21 and the second water channel 22 with the water outlet end of the piston assembly in the oral irrigator body 1, and disconnect the other from the water outlet end of the piston assembly 11. When the first water channel 21 is connected with the water outlet end of the piston assembly 11, the first water channel 21 is opened, the second water channel 22 is disconnected from the water outlet end of the piston assembly 11, and the second water channel 22 is closed; when the first water channel 21 is connected and disconnected from the water outlet end of the piston assembly 11, the first water channel 21 is closed, the second water channel 22 is connected with the water outlet end of the piston assembly 11, and the second water channel 22 is opened.

[0037] The water outlet nozzle 2 has a water outlet hole 23 that connects the first water channel 21 and the second water channel 22. The water outlet nozzle has a water outlet hole that connects the first water channel and the second water channel. When the first water channel is opened, water flows from the first water channel into the water outlet hole to form a first water splash. When the second water channel is opened, water flows from the second water channel into the water outlet hole to form a second water splash. The first water splash and the second water splash are different. With the above-mentioned water flosser, the user can open one of the first water channel 21 or the second water channel 22 inside the water outlet nozzle 2 and close the other through the water channel switching mechanism 3. This achieves different water inlet methods and thus enables the water outlet hole 23 to emit water with different splashes to meet the needs of the user. The user does not need to replace the water outlet nozzle 2. The user can switch the water splash by simply operating the water channel switching mechanism 3. It is convenient, fast and very practical.

[0038] In this embodiment, in order to achieve the effect of water channel switching, the water channel switching mechanism 3 includes an operating member 31 and a sealing member 32. The sealing member 32 is linked to the operating member 31. When the operating member 31 is operated, the sealing member 32 drives the sealing member 32 to connect one of the first water channel 21 and the second water channel 22 with the water outlet end of the piston assembly 11 in the oral irrigator body 1, and disconnect the other from the water outlet end of the piston assembly 11. In this way, the water channel connected to the water outlet end of the piston assembly 11 is in an open state, and the other water channel is in a disconnected state.

[0039] In order to achieve the sealing effect of the seal 32, the seal 32 includes a ball 321, a first spring 322 and a mounting bracket 323; the mounting bracket 323 is linked to the operating member 31; one end of the first spring 322 is fixedly connected to the mounting bracket 323, and the other end pushes the ball 321 to the water inlet end of the first water channel 21 or the second water channel 22.

[0040] In order to enable the sealing member 32 to move from a position sealing the first water channel 21 to a position sealing the second water channel 22, or vice versa, a guide surface 24 is provided between the first water channel 21 and the second water channel 22. When the ball 321 moves from the first water channel 21 to the second water channel 22, or from the second water channel 22 to the first water channel 21, driven by the operating member 31, the guide surface 24 squeezes the ball 321 to compress the first spring 322. In this embodiment, the guide surface 24 is a guide slope.

[0041] To facilitate user operation of the operating member 31, the operating member 31 comprises a button 311 and a second spring 312 sleeved on the button 311. The end of the button 311 is plugged and fixed to the mounting bracket 323. The first waterway 21 and the second waterway 22 are arranged in sequence along the pressing direction of the button 311. To switch to the second waterway 22, the user simply presses the button 311 to secure the ball bearing 321 in the position that seals the first waterway 21. At this point, the second spring 312 is squeezed and accumulates an elastic restoring force. When the user releases the button 311, the button 311 returns to the position that seals the second waterway 22 due to the restoring force of the second spring 312.

[0042] To ensure that the water spray from the water outlet hole 23 varies when different water channels are opened, the water outlet nozzle 2 has a conical water outlet portion 25, with the water outlet hole 23 located at the apex of the water outlet portion 25. The first water channel 21 connects to the water outlet portion 25 along an eccentric direction, and the second water channel 22 connects to the water outlet portion 25 along a coaxial direction.

[0043] Thus, when the first water channel 21 is opened, water directly enters the water outlet 25 from the front, forming a column of water and forming the first water splash. When the second water channel 22 is opened, water enters the water outlet 25 from the side, swirling inside the water outlet 25 to form a vortex, achieving a rotating water outlet effect and forming the second water splash.

[0044] The top angle of the cone is 30°-180°, preferably 35°-55° in this embodiment.

[0045] In addition, in this embodiment, a water nozzle storage cavity is provided in the water irrigator body 1, so that the user can place the water nozzle 2 in the storage cavity when traveling, reducing the volume of the entire water irrigator body 1, making it easy to store, and at the same time preventing the water nozzle 2 from being exposed to the outside and getting dirty.

[0046] In this embodiment, the piston assembly 11 includes a motor 111, an eccentric gear 112, a piston 113, and a piston seat 114. The operation of the motor 111 drives the eccentric gear 112 to rotate, which in turn drives the piston 113 to reciprocate via a connecting rod 115. The piston 113 and the piston seat 114 form a closed space, where the reciprocating motion creates both water intake and water discharge. The water inlet and outlet are fixed by a check plate and a duckbill valve, so that each reciprocating motion of the piston 113 creates a pulsed water flow.

[0047] Example 2

[0048] refer to Figure 9 and Figure 10This embodiment differs from Example 1 in that the sealing member 32 in this embodiment includes a sealing gasket 324, a switching shaft 325, and a Y-ring 326. The switching shaft 325 is interlocked with the button 311; the button 311 drives the switching shaft 325 to move axially along the switching shaft 325, so that the sealing gasket 324 seals the water inlet of the first water channel 21 or the second water channel 22. The Y-ring 326 is disposed on the switching shaft 325, and is located on the side of the switching shaft 325 closest to the button 311, to prevent water from leaking from the switching shaft 325.

[0049] The above is only a preferred specific embodiment of the present invention, but the design concept of the present invention is not limited to this. Any technician familiar with this technical field who uses this concept to make non-substantial changes to the present invention within the technical scope disclosed by the present invention shall be deemed to infringe the scope of protection of the present invention.

Claims

1. A water flosser with a water splash switching function, characterized in that include: The water flosser body, water outlet nozzle and water channel switching mechanism; The water outlet nozzle is provided with a first water channel and a second water channel, and the water channel switching mechanism is used to open one of the first water channel and the second water channel and close the other; The water outlet nozzle has a water outlet hole connecting the first water channel and the second water channel. When the first water channel is opened, water flows out of the water outlet hole from the first water channel to form a first water splash. When the second water channel is opened, water flows out of the water outlet hole from the second water channel to form a second water splash. The first water splash and the second water splash are different. The water outlet nozzle has a conical water outlet portion, and the water outlet hole is arranged at the apex of the water outlet portion; the first water path is connected to the water outlet portion along an eccentric direction; and the second water path is connected to the water outlet portion along a coaxial direction.

2. The water flosser with water splash switching function according to claim 1, characterized in that: A piston assembly is provided in the body of the water flosser, and the piston assembly has a water outlet end. The water circuit switching mechanism includes an operating part and a sealing part. The sealing part is linked to the operating part. The operating part is operated to drive the sealing part to connect the water outlet end of one piston assembly in the first water circuit and the second water circuit, and disconnect the other one from the water outlet end of the piston assembly.

3. The water flosser with water splash switching function according to claim 2, characterized in that: The sealing member includes a ball, a first spring and a mounting bracket; the mounting bracket is linked to the operating member; one end of the first spring is fixedly connected to the mounting bracket, and the other end pushes the ball to the water inlet end of the first waterway or the second waterway.

4. The water flosser with water splash switching function according to claim 3, characterized in that: A guide surface is provided between the first water channel and the second water channel. When the ball moves from the first water channel to the second water channel or from the second water channel to the first water channel driven by the operating member, the guide surface squeezes the ball to compress the first spring.

5. The water flosser with water splash switching function according to claim 2, characterized in that: The sealing member includes a sealing gasket and a switching shaft, and the switching shaft is linked to the operating member; the operating member drives the switching shaft to move along the axial direction of the switching shaft, so that the sealing gasket seals the water inlet end of the first waterway or the second waterway.

6. A water flosser with a water splash switching function according to any one of claims 2 to 5, characterized in that: The operating member is a button and a second spring sleeved on the button, and the first water channel and the second water channel are sequentially arranged along the pressing direction of the button.

7. The water flosser with water splash switching function according to claim 1, characterized in that: The top angle of the cone is 30°-180°.

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