Jet assembly and electric shower applying the same

Abstract

This invention discloses a nozzle assembly and an electric flushing device using the same. The assembly includes a nozzle body and a water distribution end. The water distribution end includes a mounting and flow channel portion and a ball head portion connected sequentially. The mounting and flow channel portion is inserted into and fixed within the main flow channel of the nozzle body. Liquid within the main flow channel can flow directionally along the side of the mounting and flow channel portion. The ball head portion is supported by the mounting and flow channel portion outside the port of the main flow channel of the nozzle body. The ball head portion of the water distribution end and the port of the main flow channel of the nozzle body define a spray gap, allowing liquid within the main flow channel to be sprayed out from the spray gap. This invention primarily addresses the problem of providing a reasonable nozzle flow channel structure for an electric flushing device; the liquid can achieve a larger initial velocity, thereby obtaining a longer spray distance and greater flushing force, effectively improving the performance of the electric flushing device.

Description

Technical Field

[0001] This invention relates to the field of personal care electrical appliances, specifically to a nozzle assembly and an electric rinsing device using the same. Background Technology

[0002] In the past, facial cavity dirt such as earwax, nasal dirt, and dental tartar was cleaned by cotton swabs or water spray from a showerhead. This method can easily damage the ear canal, nasal cavity, and gums, leading to infection and inflammation.

[0003] Today, people are paying more and more attention to personal hygiene and care. With the development of technology, electric rinsing devices such as ear syringes, nasal irrigators, and dental irrigators, which can be driven by small electric pumps to spray water, are gradually becoming more and more popular.

[0004] Existing electric bidets either lack a systematic nozzle system, instead using the end of the water outlet pipe as a nozzle to spray water; or they may have a nozzle, but this nozzle merely provides a coaxial water outlet channel with a diameter similar to the water outlet pipe, its actual purpose being to prevent the hard water outlet pipe from scratching the ear canal, nasal cavity, and gums. Regardless of the type of electric bidet, none of them can provide a reasonable flow structure to increase the initial velocity of the water flow, and the spray distance and the flushing power for dirt remain insufficient.

[0005] In conclusion, how to provide a reasonable nozzle flow channel structure for electric flushers has become an urgent problem to be solved. Summary of the Invention

[0006] The purpose of this invention is to provide a nozzle assembly and an electric flushing device using the same, which provides a reasonable nozzle flow channel structure for the electric flushing device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a nozzle assembly comprising a nozzle body and a water distribution end; the nozzle body comprising a main channel pipe and an inlet body arranged sequentially from the inside out, the main channel pipe being adapted for directional flow of liquid therein, and the inlet body being adapted to guide at least a portion of the nozzle body into a human body cavity; the water distribution end comprising an installation and flow channel portion and a ball head portion connected sequentially; the installation and flow channel portion being inserted into and fixed within the main channel pipe of the nozzle body, the liquid within the main channel pipe being able to flow directionally along the side of the installation and flow channel portion, and the ball head portion being supported by the installation and flow channel portion outside the port of the main channel pipe of the nozzle body; the ball head portion of the water distribution end and the port of the main channel pipe of the nozzle body defining a spray gap, the liquid within the main channel pipe being able to be sprayed out from the spray gap.

[0008] In the above technical solution, the port of the main channel pipe of the nozzle body is a radial opening; the ball head portion of the water distribution end and the radial opening of the main channel pipe of the nozzle body define the spray gap, making the spray gap annular.

[0009] In the above technical solution, the width of the spray gap is L, the maximum diameter of the radial opening is Dmax, and the minimum diameter of the radial opening is Dmin; then: L:Dmin=0.2~0.3, and Dmin:Dmax=0.7~0.9.

[0010] In the above technical solution, the port of the main channel pipe of the nozzle body is a radial opening; the ball head portion of the water distribution end has a plurality of jet channels on its surface; the ball head portion of the water distribution end abuts against the radial opening of the main channel pipe of the nozzle body, and the jet channels of the ball head portion and the inner wall of the radial opening define the jet gap.

[0011] In the above technical solution, the main channel of the nozzle body is sequentially provided with a fitting installation part, a first flow channel, and a second flow channel, and a locking rib is formed between the first flow channel and the second flow channel; the water outlet pipe of the electric flusher is adapted to be connected to the fitting installation part of the main channel, and the liquid sprayed by the water outlet pipe of the electric flusher is adapted to flow directionally in the first flow channel and the second flow channel; the installation and flow channel part of the water distribution end is provided with a first guide rib and a second guide rib extending in the radial direction at intervals; the installation and flow channel part of the water distribution end penetrates into the main channel of the nozzle body, and the first guide rib and the second guide rib respectively hug the locking rib in the main channel from both sides, thereby fixing the water distribution end.

[0012] In the above technical solution, the water distribution end and the flow channel section are provided with a flow channel groove extending in the axial direction; the liquid in the first and second flow channels of the main flow channel can flow directionally along the flow channel groove of the water distribution end.

[0013] In the above technical solution, the second flow channel of the main flow channel body narrows into a platform shape relative to the first flow channel.

[0014] In the above technical solution, the fitting installation part of the main channel pipe body can be interference-fitted with the water outlet pipe of the electric flusher; and the fitting installation part forms a water outlet pipe locking rib for locking the water outlet pipe of the electric flusher.

[0015] In the above technical solution, the nozzle body has a front end portion and a return portion arranged sequentially. The front end portion is adapted to be introduced into the human body cavity, and the return portion is adapted to abut the outer end of the human body cavity. The return portion is concave in the radial direction to form at least one return notch for the return of liquid in the human body cavity.

[0016] In the above technical solution, 1 to 8 reflux gaps are provided along the circumference of the reflux portion.

[0017] An electric flushing device includes the aforementioned nozzle assembly; it also includes an electric flushing device body and a water outlet pipe connected to the electric flushing device body for spraying liquid; the main channel pipe of the nozzle body is detachably mounted on the water outlet pipe of the electric flushing device.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: In the nozzle assembly and the electric flushing device using it in this embodiment, the liquid passes through the main channel pipe body and then through the spray gap defined by the ball head part of the water distribution end and the port of the main channel pipe body of the nozzle body, and is sprayed out in the form of an annular water column. Since the flow area of ​​the spray gap is small, the annular water column can obtain a large initial velocity, thereby obtaining a longer spray distance and a larger flushing force, which can effectively improve the performance of the electric flushing device. Attached Figure Description

[0019] Figure 1 This is one of the perspective views of the nozzle assembly in this invention.

[0020] Figure 2 This is one of the exploded views of the nozzle assembly in this invention.

[0021] Figure 3 This is one of the cross-sectional views of the nozzle assembly in this invention.

[0022] Figure 4 This is a second perspective view of the nozzle assembly in this invention.

[0023] Figure 5 This is a second exploded view of the nozzle assembly in this invention.

[0024] Figure 6 This is a second cross-sectional view of the nozzle assembly in this invention.

[0025] Figure 7 These are views of several forms of the nozzle assembly in this invention.

[0026] Figure 8 This is a perspective view of the electric flushing device of the present invention.

[0027] The attached figures are labeled as follows: 1. Nozzle body; 11. Inlet body; 111. Front end part; 112. Return part; 113. Return notch; 12. Main channel pipe body; 121. Fitting installation part; 122. First flow channel; 123. Second flow channel; 124. Locking rib; 125. Radial opening; 126. Outlet pipe locking rib; 2. Water distribution end; 21. Installation and flow channel part; 211. First inlet rib; 212. Second inlet rib; 213. Flow channel groove; 22. Ball head part; 10. Spray gap; 20. Electric flusher body; 30. Outlet pipe. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] This embodiment provides a nozzle assembly for use as the water outlet of an electric rinsing device (such as an ear syringe, nasal irrigator, and dental irrigator). This embodiment will take an ear syringe as an example to explain in detail the technical solution of the nozzle assembly.

[0030] Please see Figures 1-3 The nozzle assembly in this embodiment includes a nozzle body 1 and a water distribution end 2.

[0031] The nozzle body 1 is made of flexible rubber and plastic material, such as medical-grade silicone, medical-grade rubber, or medical-grade soft plastic. The water distribution end 2 can be made of rubber and plastic or metal, such as medical-grade plastic or medical-grade stainless steel.

[0032] The nozzle body 1 includes a main channel pipe 12 and an inlet body 11 arranged sequentially from the inside to the outside. The main channel pipe 12 and the inlet body 11 are integrally injection molded and can be connected to each other by radially arranged ribs. The main channel pipe 12 is suitable for directing the flow of liquid (specifically, the liquid sprayed from the water outlet pipe 30 of the electric flusher, such as purified water, saline, and formulated flushing agents) therein. The inlet body 11 is suitable for guiding at least a portion of the nozzle body 1 into human cavities (such as the ear canal, nasal cavity, and oral cavity; in this embodiment, the ear canal will be used as an example).

[0033] The water distribution end 2 includes an installation and flow channel portion 21 and a ball head portion 22 connected in sequence. Specifically, the installation and flow channel portion 21 is generally cylindrical, and the ball head portion 22 is a spherical body with a diameter larger than that of the installation and flow channel portion 21. The installation and flow channel portion 21 and the ball head portion 22 are integrally formed.

[0034] The mounting and flow channel portion 21 is inserted into and fixed in the main flow channel 12 of the nozzle body 1. The liquid in the main flow channel 12 can flow directionally along the side of the mounting and flow channel portion 21. The ball head portion 22 is supported by the mounting and flow channel portion 21 outside the port of the main flow channel 12 of the nozzle body 1. That is, the ball head portion 22 is at a certain distance from the port of the main flow channel 12 of the nozzle body 1.

[0035] The ball head portion 22 of the water distribution end 2 and the port of the main channel pipe body 12 of the nozzle body 1 define the spray gap 10, and the liquid in the main channel pipe body 12 can be sprayed out from the spray gap 10.

[0036] Specifically, the main channel pipe body 12 of the nozzle body 1 is sequentially provided with a fitting mounting part 121, a first flow channel 122, and a second flow channel 123, and a locking rib 124 is formed between the first flow channel 122 and the second flow channel 123. In fact, the fitting mounting part 121, the first flow channel 122, and the second flow channel 123 are all channel-shaped structures formed inside the main channel pipe body 12, and the locking rib 124 is an annular rib plate integrally formed inside the main channel pipe body 12. The water outlet pipe 30 of the electric flusher is suitable for connecting to the fitting mounting part 121 of the main channel pipe body 12, and the liquid sprayed by the water outlet pipe 30 of the electric flusher is suitable for directional flow in the first flow channel 122 and the second flow channel 123. The installation of the water distribution end 2 and the flow channel part 21 are provided with intervals along the... A first guide rib 211 and a second guide rib 212 extend radially, and at least the surface of the first guide rib 211 is a frustum-shaped surface. In fact, the gap between the first guide rib 211 and the second guide rib 212 is the thickness of the locking rib 124 in the main channel pipe body 12. The water distribution end head 2 and the flow channel portion 21 are inserted into the main channel pipe body 12 of the nozzle body 1. The first guide rib 211 and the second guide rib 212 respectively hug the locking rib 124 in the main channel pipe body 12 from both sides, thereby fixing the water distribution end head 2. In the above assembly process, the frustum-shaped surface of the first guide rib 211 can guide the first guide rib 211 to the inside of the locking rib 124. In the above manner, the fixed assembly of the nozzle body 1 and the water distribution end head 2 is realized.

[0037] Furthermore, the second flow channel 123 of the main flow channel 12 narrows into a platform shape relative to the first flow channel 122. Due to the narrowing of the second flow channel 123, the liquid ejected from the second flow channel 123 has a higher flow velocity, thereby improving the flushing ability of the liquid.

[0038] Furthermore, the fitting and mounting part 121 of the main channel pipe body 12 can be interference-fitted with the water outlet pipe 30 of the electric flusher; and the fitting and mounting part 121 forms a water outlet pipe locking rib 126 for locking the water outlet pipe 30 of the electric flusher. In this way, the nozzle body 1 can be quickly assembled and disassembled at the water outlet pipe 30 of the electric flusher.

[0039] Furthermore, the installation and flow channel portion 21 of the water distribution end 2 is provided with a flow channel groove 213 extending in the axial direction. In fact, the flow channel groove 213 is a straight groove formed on the surface of the installation and flow channel portion 21; the liquid in the first flow channel 122 and the second flow channel 123 of the main flow channel pipe body 12 can flow in a direction along the flow channel groove 213 of the water distribution end 2.

[0040] Furthermore, the port of the main channel pipe 12 of the nozzle body 1 is a radial opening 125. Specifically, a funnel-shaped notch can be formed at the port of the main channel pipe 12 to form the radial opening 125, which serves as the outlet of the second flow channel 123. The ball head portion 22 of the water distribution end 2 and the radial opening 125 of the main channel pipe 12 of the nozzle body 1 define the spray gap 10, making the spray gap 10 annular.

[0041] Please see Figure 3 Furthermore, the width of the injection gap 10 is L, the maximum diameter of the radial opening 125 is Dmax, and the minimum diameter of the radial opening 125 is Dmin; then we have: L:Dmin=0.2~0.3, and Dmin:Dmax=0.7~0.9.

[0042] Specifically, the nozzle body 1 has an inlet body 11 with a front end portion 111 and a return portion 112 in sequence. The diameter of the front end portion 111 is smaller than the diameter of the return portion 112. The front end portion 111 is suitable for being introduced into the human body cavity, and the return portion 112 is suitable for abutting the outer end of the human body cavity. The return portion 112 is concave in the radial direction to form at least one return notch 113 for the return of liquid in the human body cavity.

[0043] Please see Figure 7 More specifically, there are 1 to 8 reflux gaps 113 arranged along the circumference of the reflux portion 112; in some possible embodiments, there are 3 or 4 reflux gaps 113 arranged along the circumference of the reflux portion 112, so that the reflux portion 112 is approximately triangular or cross-shaped; in other possible embodiments, there are 2 reflux gaps 113 arranged opposite each other on both sides of the reflux portion 112, so that the reflux portion 112 is approximately elliptical.

[0044] Please see Figures 4-6In some other possible embodiments, the port of the main channel pipe 12 of the nozzle body 1 is a radial opening 125. Specifically, a funnel-shaped notch can be formed at the port of the main channel pipe 12 to form the radial opening 125 as the outlet of the second flow channel 123. The ball head portion 22 of the water distribution end 2 is provided with a plurality of jet flow channels 221. The ball head portion 22 of the water distribution end 2 abuts against the radial opening 125 of the main channel pipe 12 of the nozzle body 1, and the jet flow channel 221 of the ball head portion 22 and the inner wall of the radial opening 125 define a jet gap 10. At this time, the jet gap 10 is strip-shaped.

[0045] This embodiment also provides an electric irrigator, such as an ear syringe, nasal irrigator, and dental irrigator. This embodiment will use an ear syringe as an example for explanation.

[0046] Please see Figure 8 The electric flusher of this embodiment includes the above-mentioned nozzle assembly; it also includes an electric flusher body 20 and a water outlet pipe 30 connected to the electric flusher body 20 for spraying liquid; the main channel pipe 12 of the nozzle body 1 is detachably mounted on the water outlet pipe 30 of the electric flusher.

[0047] It should be noted that the electric flusher body 20 is equipped with a liquid storage box, an electric pump for pumping the liquid in the liquid storage box to the water outlet pipe 30 to realize water discharge, as well as necessary electrical control components and connecting pipes.

[0048] Understandably, the water outlet pipe 30 is provided with an annular groove that is suitable for engaging with the water outlet pipe locking rib 126 of the fitting installation part 121 of the main channel pipe body 12, so as to make it easy to lock the nozzle body 1 onto the water outlet pipe 30.

[0049] In this embodiment, when the electric flusher is in use, the electric pump inside the electric flusher body 20 is activated, pumping the liquid stored in the storage box to the water outlet pipe 30 to achieve water output. The liquid flows sequentially through the first flow channel 122 and the second flow channel 123 of the main flow channel 12 (flowing along the flow channel groove 213 of the installation and flow channel portion 21), reaches the radial opening 125, and then is sprayed out in the form of an annular water column through the spray gap 10 defined by the ball head portion 22 of the water distribution end 2 and the port of the main flow channel 12 of the nozzle body 1. Since the flow area of ​​the spray gap 10 is small, the annular water column can obtain a large initial velocity, thereby obtaining a longer spray distance and a larger flushing force.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nozzle assembly, characterized in that, Includes the nozzle body and the water distribution end; The nozzle body includes a main channel pipe and an inlet body arranged sequentially from the inside to the outside. The main channel pipe is adapted to allow liquid to flow in a directional manner therein, and the inlet body is adapted to guide at least a portion of the nozzle body into a human body cavity. The water distribution end includes an installation and flow channel section and a ball head section connected in sequence; The mounting and flow channel portion is inserted into and fixed in the main flow channel of the nozzle body. The liquid in the main flow channel can flow directionally along the side of the mounting and flow channel portion. The ball head portion is supported by the mounting and flow channel portion outside the port of the main flow channel of the nozzle body. The ball head portion of the water distribution end and the port of the main channel pipe of the nozzle body define a spray gap, through which the liquid in the main channel pipe can be sprayed out.

2. The nozzle assembly according to claim 1, characterized in that: The port of the main channel of the nozzle body is a radial opening. The ball head portion of the water distribution end and the radial opening of the main channel pipe of the nozzle body define the spray gap, making the spray gap annular.

3. The nozzle assembly according to claim 2, characterized in that: The width of the injection gap is L, the maximum diameter of the radial opening is Dmax, and the minimum diameter of the radial opening is Dmin; Then we have: L:Dmin=0.2~0.3, and Dmin:Dmax=0.7~0.

9.

4. The nozzle assembly according to claim 1, characterized in that: The port of the main channel of the nozzle body is a radial opening. The ball head portion of the water distribution end has several jet channels on its surface; The ball head portion of the water distribution end abuts against the radial opening of the main channel pipe of the nozzle body, and the jet flow channel of the ball head portion and the inner wall of the radial opening define the jet gap.

5. The nozzle assembly according to claim 1, characterized in that: The main channel of the nozzle body is provided with a fitting installation part, a first flow channel and a second flow channel in sequence, and a locking rib is formed between the first flow channel and the second flow channel. The outlet pipe of the electric flusher is adapted to be connected to the fitting installation part of the main channel pipe body, and the liquid sprayed by the outlet pipe of the electric flusher is adapted to flow in a direction in the first channel and the second channel. The water distribution end and the flow channel section are provided with a first inlet rib and a second inlet rib extending radially at intervals. The water distribution end is installed and the flow channel portion is inserted into the main flow channel of the nozzle body. The first guide rib and the second guide rib respectively hug the locking rib in the main flow channel from both sides, thereby fixing the water distribution end.

6. The nozzle assembly according to claim 5, characterized in that: The water distribution end and the flow channel section are provided with a flow channel groove extending in the axial direction. The liquid in the first and second channels of the main channel pipe can flow directionally along the channel groove at the water distribution end.

7. The nozzle assembly according to claim 5, characterized in that: The fitting part of the main channel pipe body can be interference-fitted with the water outlet pipe of the electric flusher. Furthermore, the fitting assembly contains a water outlet pipe locking rib for locking the water outlet pipe of the electric flusher.

8. The nozzle assembly according to claim 1, characterized in that: The nozzle body has a front end and a return end arranged sequentially. The front end is adapted to be introduced into the human body cavity, and the return end is adapted to abut against the outer end of the human body cavity. The reflux portion is concave in the radial direction to form at least one reflux notch for the return of liquid within the body cavity.

9. The nozzle assembly according to claim 8, characterized in that: The reflux gaps are provided in 1 to 8 locations along the circumference of the reflux section.

10. An electric flushing device, characterized in that, It includes the nozzle assembly as described in any one of claims 1-9; It also includes an electric flushing unit and a water outlet pipe connected to the electric flushing unit for spraying liquid. The main channel pipe of the nozzle body is detachably mounted on the outlet pipe of the electric flusher.

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