Nozzle assembly and oral irrigator

Abstract

The utility model discloses a nozzle assembly and a water pick, and relates to the technical field of toilet articles, the nozzle assembly comprises a nozzle and a nozzle cover, and the nozzle is provided with a water outlet; the nozzle cover is rotatably connected to the sprayer, and a plurality of water spraying holes are formed in the nozzle cover; and the diameters of orifices, back to the water outlet, of the water spraying holes are different. According to the technical scheme, the hole diameters of the water spraying holes are different, so that a user can select nozzle covers with different hole diameters only by rotating the nozzle cover, and the nozzle cover is convenient for the user to use.

Description

Technical Field

[0001] This utility model relates to the field of toiletries technology, and in particular to a nozzle assembly and a water flosser. Background Technology

[0002] A water flosser is an auxiliary tool for cleaning the oral cavity. It uses pulsating water jets to clean teeth and between teeth. The high-pressure pulsating water jets from a water flosser generate a gentle stimulation that will not injure any part of the mouth or face, and will even massage the gums.

[0003] However, most water flossers on the market only come with one type of nozzle. If users want to use nozzles with different nozzle sizes to clean their mouths, they need to change to different nozzles on the water flosser to meet their needs, which is inconvenient for users. Utility Model Content

[0004] The main purpose of this invention is to provide a nozzle assembly and a brushing device, which is designed to facilitate users in selecting nozzle caps with different orifice diameters.

[0005] To achieve the above objectives, the nozzle assembly proposed in this utility model includes:

[0006] The nozzle has a water outlet; and

[0007] A nozzle cover is rotatably connected to the nozzle head, and the nozzle cover has a plurality of spray holes; the diameter of the opening of each spray hole facing away from the water outlet is different.

[0008] In one embodiment, one of the nozzle and the nozzle cover has a positioning protrusion, and the other has a positioning groove corresponding to each of the water spray holes; the positioning protrusion engages with the groove wall of each positioning groove so that the corresponding water spray hole communicates with the water outlet.

[0009] In one embodiment, the positioning protrusion is formed on the side of the nozzle facing the water spray hole, and the positioning groove is formed on the side of the nozzle cover facing the water outlet.

[0010] In one embodiment, the diameter of the opening of each of the spray holes facing the water outlet is the same as the diameter of the water outlet.

[0011] In one embodiment, the nozzle assembly further includes a sealing ring disposed at the periphery of the nozzle opening facing the outlet.

[0012] In one embodiment, the sealing ring is made of one of silicone, nitrile rubber, and thermoplastic elastomer.

[0013] In one embodiment, the nozzle cover is formed with a retaining ring, the nozzle head is formed with a retaining groove, and the retaining ring engages with the groove wall.

[0014] In one embodiment, a mounting groove is formed on the side of the nozzle cover facing the nozzle head, and the retaining ring is formed on the groove wall of the mounting groove; the end of the nozzle head near the nozzle cover is inserted into the mounting groove so that the retaining ring engages with the groove wall of the retaining groove.

[0015] In one embodiment, the nozzle cover is made of either polypropylene or polyethylene polypropylene.

[0016] This utility model also proposes a dental flosser, comprising:

[0017] The nozzle has a water outlet; and

[0018] A nozzle cover is rotatably connected to the nozzle head, and the nozzle cover has a plurality of spray holes; the diameter of the opening of each spray hole facing away from the water outlet is different.

[0019] In this invention, the nozzle assembly includes a nozzle head and a nozzle cover. The nozzle head has a water outlet. The nozzle cover is rotatably connected to the nozzle head and has multiple spray holes. The diameter of the orifice facing away from the water outlet of each spray hole is different. Because each spray hole has a different diameter, the user can easily select a nozzle cover with a different orifice diameter simply by rotating the nozzle cover, making it convenient for the user. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the nozzle assembly provided by this utility model;

[0022] Figure 2 for Figure 1 Sectional view along AA;

[0023] Figure 3 for Figure 2 A magnified view of a section at point B in the middle;

[0024] Figure 4 This is a schematic diagram of one embodiment of the nozzle cap in the nozzle assembly;

[0025] Figure 5 for Figure 4 Sectional view along CC;

[0026] Figure 6 This is a structural schematic diagram of another embodiment of the nozzle cap in the nozzle assembly.

[0027] Explanation of icon numbers:

[0028] label name label name 1000 Nozzle assembly 2a water jet hole 1 spray head 2b positioning groove 1a water outlet 21 Snap ring 11 Positioning protrusion 2c Mounting slot 1b Card slot 3 sealing ring 2 Nozzle cap

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] This utility model proposes a nozzle assembly 1000.

[0034] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 In the technical solution of this utility model, the nozzle assembly 1000 includes a nozzle 1 and a nozzle cover 2. The nozzle 1 has a water outlet 1a. The nozzle cover 2 is rotatably connected to the nozzle 1 and has a plurality of water spray holes 2a. The diameter of the opening of each water spray hole 2a facing away from the water outlet 1a is different.

[0035] In the technical solution of this utility model, the diameter of each spray hole 2a is different, so the user can select nozzle covers 2 with different diameters simply by rotating the nozzle cover 2, which is convenient for the user.

[0036] Please see Figure 4 and Figure 6 In one embodiment of this utility model, the number of water spray holes 2a is three.

[0037] One of the nozzle 1 and the nozzle cover 2 has a positioning protrusion 11, and the other has a positioning groove 2b corresponding to each spray hole 2a. Please refer to Figure 1 and Figure 3 In one embodiment of this utility model, the nozzle 1 has a positioning protrusion 11, and the nozzle cover 2 has a positioning groove 2b corresponding to each water spray hole 2a. The positioning protrusion 11 engages with the groove wall of each positioning groove 2b to connect the corresponding water spray hole 2a with the water outlet 1a. By rotating the nozzle cover 2, the positioning protrusion 11 moves from one positioning groove 2b to another, thereby changing the alignment of one water spray hole 2a aligned with the water outlet 1a to another water spray hole 2a. Through the cooperation of the positioning protrusion 11 and the positioning groove 2b, the alignment of the water outlet 1a with each water spray hole 2a is more accurate, thereby avoiding misalignment that would reduce the diameter of the water spray hole 2a in actual use.

[0038] The positioning protrusion 11 and each positioning groove 2b can be positioned such that the positioning protrusion 11 is formed on the end face of the nozzle 1 facing the water spray hole 2a, and each positioning groove 2b is formed on the side of the nozzle cover 2 facing the water outlet; or the positioning protrusion 11 is formed on the peripheral wall of the nozzle 1, and each positioning groove 2b is correspondingly formed on the inner peripheral wall of the nozzle cover 2. Please refer to [link / reference]. Figure 3 and Figure 5In one embodiment of this utility model, a positioning protrusion 11 is formed on the side of the nozzle 1 facing the water spray hole 2a, and positioning grooves 2b are formed on the side of the nozzle cover 2 facing the water outlet 1a. This arrangement facilitates the user's unscrewing of the nozzle cover 2 and makes it easy to use; at the same time, this arrangement avoids gaps between the inner peripheral wall of the nozzle cover 2 and the peripheral wall of the nozzle 1 during the user's unscrewing of the nozzle cover 2, which would cause water to flow out through the gaps, resulting in the water volume and water pressure sprayed from the water spray hole 2a not reaching the preset values. In summary, it is preferable that the positioning protrusion 11 is formed on the end face of the nozzle 1 facing the water spray hole 2a, and each positioning groove 2b is formed on the side of the nozzle cover 2 facing the water outlet 1a.

[0039] It should be noted that the positioning protrusion 11 can be made of either a hard or a soft material. In one embodiment of this utility model, the positioning protrusion 11 is made of a hard material. When the user rotates the nozzle cover 2, the positioning protrusion 11 moves from one positioning groove 2b to another. When the movement is complete, the positioning protrusion 11 makes a louder sound when it contacts the groove wall of the positioning groove 2b, thus indicating to the user that the nozzle cover 2 has been rotated into place. Therefore, it is preferable that the positioning protrusion 11 is made of a hard material.

[0040] Please see Figure 4 , Figure 5 as well as Figure 6 In one embodiment of this utility model, the diameter of the opening of each spray hole 2a facing the outlet 1a is the same as the diameter of the outlet. The diameters of the openings of each spray hole 2a facing the outlet 1a are l1, l2, and l3, respectively, and the diameter of the outlet 1a is l, where l1 = l2 = l3 = l. The consistency between the diameter of the openings of each spray hole 2a facing the outlet 1a ensures that the openings of each spray hole 2a are aligned with the outlet 1a, thereby reducing the resistance of the water flow at the connection between the spray hole 2a and the outlet 1a. This allows the water sprayed from the spray hole 2a to reach a preset pressure value, while preventing obstructed water from entering the nozzle assembly 1000 from between the nozzle cover 2 and the nozzle head 1, thus preventing damage to electronic components and improving the sealing performance of the nozzle assembly 1000.

[0041] Please see Figure 3 and Figure 5 In one embodiment of this utility model, the nozzle assembly 1000 further includes a sealing ring 3, which is disposed on the periphery of the nozzle opening 2a facing the outlet 1a. The main function of the sealing ring 3 is to prevent water leakage, ensure a sealed connection between the nozzle opening 2a and the outlet 1a, prevent water from seeping out from the connection between the nozzle opening 2a and the outlet 1a, further improve the waterproof performance of the nozzle assembly 1000, and reduce water pressure loss by good sealing performance, thus ensuring the cleaning efficiency of the nozzle.

[0042] It is understood that the sealing ring 3 can be made of silicone, nitrile rubber, or thermoplastic elastomer. In one embodiment of this invention, the sealing ring 3 is made of silicone. The silicone sealing ring 3 has high flexibility and elasticity, providing a good sealing effect and effectively preventing water from seeping into the nozzle assembly 1000. Silicone is a non-toxic, odorless, and chemically stable material that meets food and pharmaceutical hygiene standards, and therefore will not cause harm to the human body. Therefore, silicone is preferred as the material for the sealing ring 3.

[0043] It is understood that the connection between the nozzle cover 2 and the nozzle 1 can be either screwed or snap-fitted. Please refer to [link / reference]. Figure 3 and Figure 5 In one embodiment of this utility model, the nozzle cover 2 has a retaining ring 21, and the nozzle head 1 has a retaining groove 1b, with the retaining ring 21 engaging with the groove wall of the groove 1b. The engaging of the nozzle cover 2 and the nozzle head 1 facilitates user rotation of the nozzle cover 2; the engaging of the retaining ring 21 with the groove wall of the groove 1b ensures a secure connection between the nozzle cover 2 and the nozzle head 1, reducing the risk of accidental detachment of the nozzle cover 2 during use, thereby enhancing the stability of the nozzle assembly 1000; the engaging method of the retaining ring 21 with the groove 1b allows for quick and easy installation or replacement of the nozzle cover 2, improving installation convenience. Therefore, the preferred connection method between the nozzle cover 2 and the nozzle head 1 is the retaining ring engagement.

[0044] Please see Figure 3 and Figure 5 In one embodiment of this utility model, a mounting groove 2c is formed on the side of the nozzle cover 2 facing the nozzle 1, and a retaining ring 21 is formed on the groove wall of the mounting groove 2c; the end of the nozzle 1 near the nozzle cover 2 is inserted into the mounting groove 2c so that the retaining ring 21 engages with the groove wall of the retaining groove 1b. The mounting groove 2c can accurately position and ensure that the nozzle cover 2 is precisely aligned with the nozzle 1 and firmly connected to the nozzle 1; the design of the mounting groove 2c allows the nozzle 1 to be quickly inserted into it, making the installation and removal of the nozzle cover 2 simple and quick, and improving the convenience of disassembly and assembly.

[0045] It should be noted that the diameter of the orifice of each spray hole 2a facing away from the outlet 1a can be any three different sizes. In one embodiment of this utility model, the diameters of the orifices of each spray hole 2a facing away from the outlet 1a are L1, L2, and L3, respectively; wherein L1 = 0.75mm, L2 = 0.65mm, and L3 = 0.5mm. These three orifice diameters of nozzle caps 2 have a large consumer base in the market and broad application prospects.

[0046] It is understood that the nozzle cap 2 can be made of polyethylene polypropylene or polypropylene (PP). In one embodiment of this invention, the nozzle cap 2 is made of polypropylene. Polypropylene has good toughness and is not easily deformed; polypropylene is particularly stable to water, with a water absorption rate of only 0.01%, and it does not easily swell due to water absorption. Therefore, it is preferred that the nozzle cap 2 be made of polypropylene.

[0047] This utility model also proposes a water flosser, which includes a main body and a nozzle assembly 1000. The specific structure of the nozzle assembly 1000 is as described in the above embodiments. Since this water flosser adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The main body forms a water storage cavity, and the nozzle 1 is connected to the main body so that the water storage cavity is connected to the water outlet 1a.

[0048] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A nozzle assembly (1000), characterized in that, include: The nozzle (1) has an outlet (1a); and The nozzle cover (2) is rotatably connected to the nozzle (1) and has a plurality of water spray holes (2a); the diameter of the opening of each water spray hole (2a) facing away from the water outlet (1a) is different.

2. The nozzle assembly (1000) as claimed in claim 1, characterized in that, One of the nozzle (1) and the nozzle cover (2) has a positioning protrusion (11), and the other has a positioning groove (2b) corresponding to each of the water spray holes (2a); the positioning protrusion (11) engages with the groove wall of each of the positioning grooves (2b) so that the corresponding water spray hole (2a) communicates with the water outlet (1a).

3. The nozzle assembly (1000) as claimed in claim 2, characterized in that, The nozzle (1) has a positioning protrusion (11) on the side facing the water spray hole (2a), and the nozzle cover (2) has positioning grooves (2b) on the side facing the water outlet (1a).

4. The nozzle assembly (1000) as claimed in claim 1, characterized in that, The diameter of the opening of each of the spray holes (2a) facing the water outlet (1a) is the same as the diameter of the water outlet.

5. The nozzle assembly (1000) as claimed in claim 4, characterized in that, The nozzle assembly (1000) further includes a sealing ring (3), which is disposed at the periphery of the orifice (2a) facing the outlet (1a).

6. The nozzle assembly (1000) as claimed in claim 5, characterized in that, The sealing ring (3) is made of one of the following materials: silicone, nitrile rubber, and thermoplastic elastomer.

7. The nozzle assembly (1000) as claimed in claim 1, characterized in that, The nozzle cover (2) has a retaining ring (21), and the nozzle (1) has a retaining groove (1b). The retaining ring (21) engages with the groove wall of the retaining groove (1b).

8. The nozzle assembly (1000) as claimed in claim 7, characterized in that, The nozzle cover (2) has a mounting groove (2c) on the side facing the nozzle (1), and the retaining ring (21) is formed on the groove wall of the mounting groove (2c); the nozzle (1) is inserted into the mounting groove (2c) at one end near the nozzle cover (2) so that the retaining ring (21) engages with the groove wall of the retaining groove (1b).

9. The nozzle assembly (1000) as claimed in any one of claims 1 to 8, characterized in that, The nozzle cover (2) is made of either polypropylene or polyethylene.

10. A dental flosser, characterized in that, The water flosser includes a body and a nozzle assembly (1000) as described in any one of claims 1 to 9, the body forming a water reservoir, and the nozzle (1) being connected to the body such that the water reservoir is in communication with the outlet (1a).

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