A nozzle assembly and a nebulizer bottle cap

Abstract

This utility model relates to the field of sprayers, specifically a nozzle assembly and a sprayer cap, including a connector and a nozzle seat coaxially rotatably fitted with the connector. The connector has an axially oriented outlet channel communicating with a liquid source. A sealing ring is provided outside the outlet channel, with at least one section of the sealing ring extending outwards away from the outlet channel. The nozzle seat presses against the sealing ring and encloses the extended section of the sealing ring to form an outlet cavity communicating with the outlet channel. The nozzle seat has at least two different nozzles arranged in a circumferential array around the axis of the nozzle seat. The nozzle seat has outlets corresponding to the positions of each nozzle. When each outlet rotates to correspond to the position of the outlet cavity, the outlet channel supplies liquid to at most one set of nozzles through the outlet cavity and the outlet. This utility model enables rapid adjustment of the spray range of the sprayer.

Description

Technical Field

[0001] This utility model relates to the field of sprayers, specifically a nozzle assembly and a sprayer cap. Background Technology

[0002] A sprayer, as a device that sprays liquid from a container in the form of mist, foam, or jets through pressurization, relies on a liquid atomization mechanism as its core technology. Traditional sprayers typically employ a single-nozzle design, requiring manual pressing to generate pressure and force the liquid through tiny orifices to form mist particles. Whether using hydraulic atomization or gas-liquid two-phase atomization, sprayers remain essentially single-nozzle designs. The most significant drawback of this single-nozzle design is its limited spray range and low operating efficiency. Because the spray range produced by a single nozzle is limited, typically a small circular or elliptical area, covering a slightly larger area requires the user to repeatedly and overlappingly press and move the nozzle. This method is not only time-consuming and labor-intensive but also prone to uneven spraying. On the other hand, when precise spraying over a small area is required, single-nozzle sprayers often necessitate placing the nozzle closer to the work area, which is also inconvenient in practice. Since the atomization effect of the sprayer is determined by the nozzle structure at the factory, users cannot adjust the atomization effect according to actual usage needs. The nozzle function is too simple and cannot switch the spray range according to different task requirements, which has limitations and urgently needs to be solved. Utility Model Content

[0003] To avoid and overcome the technical problems existing in the prior art, this utility model provides a nozzle assembly and a sprayer cap. This utility model enables rapid adjustment of the spray range of the sprayer.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A nozzle assembly includes a connector and a nozzle seat that is coaxially rotatably coupled with the connector. The connector has an axially formed liquid outlet channel communicating with a liquid source. A sealing ring is provided outside the liquid outlet channel. At least one section of the sealing ring extends outward in a direction away from the liquid outlet channel. The nozzle seat is pressed against the sealing ring and surrounds the extended section of the sealing ring to form a liquid outlet cavity communicating with the liquid outlet channel.

[0006] The nozzle holder is provided with at least two different nozzles, and each nozzle is arranged in a circumferential array around the axis of the nozzle holder. The nozzle holder is provided with a liquid outlet corresponding to the position of each nozzle. When each liquid outlet rotates with the nozzle holder to the position corresponding to the liquid outlet chamber, the liquid outlet channel supplies liquid to at most one set of nozzles through the liquid outlet chamber and the liquid outlet.

[0007] As a further embodiment of this utility model: the outer ring of the nozzle seat is provided with elastic buckles arranged in a circumferential array around the axis of the nozzle seat, and the connector head is provided with a slot corresponding to the position of the elastic buckle. The positioning protrusion on the elastic buckle engages with the slot to achieve axial positioning of the nozzle seat.

[0008] As a further improvement of this utility model: the positioning protrusion is an arc-shaped protrusion arranged around the liquid outlet channel. The two ends of the positioning protrusion are provided with guide slopes. When the positioning protrusion is engaged in the slot, the guide slopes abut against the side wall of the slot. When the nozzle seat rotates, the positioning protrusion slides relative to the slot along the guide slopes and disengages from the slot.

[0009] As a further improvement of this utility model: the number of elastic buckles corresponds to the number of nozzles, and the spacing angle between adjacent elastic buckles corresponds to the spacing angle between adjacent nozzles.

[0010] As a further embodiment of this utility model: the sealing ring includes an annular segment arranged around the liquid outlet channel and in a non-closed shape. The opening of the annular segment is closed by a radially extending segment extending radially outward along the liquid outlet channel. Each liquid outlet is staggered from the inner ring area of ​​the annular segment of the sealing ring.

[0011] As a further improvement of this utility model: the nozzle seat is provided with a mounting seat arranged in a sleeve shape along the direction parallel to the liquid outlet channel axis. The mounting seat is coaxially arranged with the corresponding liquid outlet, and the outer diameter of each nozzle matches the inner diameter of the mounting seat.

[0012] As a further improvement of this utility model, the nozzle and the inner cavity of the mounting base are configured with an interference fit.

[0013] As a further improvement of this invention: each nozzle is an atomizing nozzle, and the spray angle of each nozzle is different.

[0014] As a further improvement of this invention: around the liquid outlet channel, the spray angle of adjacent nozzles changes in a gradient manner.

[0015] A sprayer cap includes a nozzle assembly, wherein a pressing head is provided on the cap body, a connector is coaxially fixed to the pressing head, and the pressing outlet of the pressing head is connected to the liquid outlet channel of the connector.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model integrates multiple spraying functions into a compact component by circumferentially arranging at least two sets of nozzles with different characteristics on a nozzle seat. In use, the different nozzles can be switched by simply rotating the nozzle seat, which can realize the rapid adjustment of the spray range of the sprayer.

[0018] 2. The unique sealing ring design of this utility model forms a liquid outlet chamber by enclosing the nozzle seat, sealing ring, and connector, ensuring a high degree of sealing during the liquid transport process from the liquid outlet channel to the liquid outlet. This design ensures that, in the working state, liquid can only be sprayed out through the selected liquid outlet and nozzle, while other nozzles are effectively isolated, completely avoiding the problems of internal crossflow and accidental leakage.

[0019] 3. This utility model achieves axial limiting safety through the cooperation of elastic buckle and slot, and provides a sense of gear position during rotation operation; when rotating the nozzle seat, the positioning protrusion slides into and out of the slot, bringing a tactile feedback and providing clear switching feedback, ensuring that the required nozzle can be accurately rotated to the working position each time, achieving precise positioning and liquid supply.

[0020] 4. This utility model can switch the spray head as needed according to the actual use scenario, realizing multiple uses for one bottle. All functional components are highly integrated, the structure is compact, and the overall size and manufacturing cost of the product are not significantly increased. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is an exploded view of the present invention.

[0023] Figure 3 This is a schematic diagram of the mating surface between the nozzle seat and the connector in this utility model.

[0024] In the picture:

[0025] 1. Connector; 11. Liquid outlet channel; 12. Sealing ring;

[0026] 121. Annular section; 122. Radial extension section; 13. Slot; 14. Liquid outlet chamber;

[0027] 2. Nozzle holder; 21. Mounting base; 22. Flexible snap-fit;

[0028] 221. Positioning protrusion; 222. Guide slope; 23. Liquid outlet;

[0029] 3. Nozzle; 31. Spray nozzle; 4. Bottle cap; 41. Press head. 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 protection scope of the present utility model.

[0031] Please see Figures 1-3 In this embodiment of the invention, a nozzle assembly and a sprayer cap are provided. A connector 1 is used to connect a liquid source such as a bottle body, water gun, or water pipe. In this embodiment, the liquid source is a complete packaging bottle. The packaging bottle includes a bottle body and a cap 4. The connector 1 is coaxially and fixedly connected to a pressing head 41 on the cap 4. The pressing head 41 has an internal channel, and its pressing outlet communicates with the inlet of the liquid outlet channel 11 of the connector 1. A conventional air pressure pump or vacuum pump structure is typically installed inside the bottle body.

[0032] The connector 1 has a liquid outlet channel 11 inside along its axial direction. The inlet end of the liquid outlet channel 11 is connected to the pumping mechanism or liquid guide tube inside the bottle, and the outlet end is used to output liquid. The connector 1 is a cylindrical body with one side opening. The liquid outlet channel 11 is opened on the bottom surface of the cylindrical body of the connector 1. The nozzle seat 2 is installed into the connector 1 from the opening of the liquid outlet channel 11.

[0033] The outer ring of the connector 1 has intermittently formed arc-shaped grooves 13, each groove 13 being coaxial with the liquid outlet channel 11. A sealing ring 12 is fixed to the end face of the connector 1 and arranged around the liquid outlet channel 11. In this embodiment, the sealing ring 12 consists of an annular segment 121 and a radially extending segment 122. The annular segment 121 is not a complete closed ring; it has an opening. The radially extending segment 122 starts from this opening and extends outward in a direction away from the axis of the liquid outlet channel 11, thereby closing the opening of the annular segment 121, making the sealing ring 12 a special structure with an extending arm. The inner ring area of ​​the annular segment 121 is directly opposite the outlet of the liquid outlet channel 11. The sealing ring can also be made using soft materials such as TPE-TPR or rubber, or by multi-component injection molding, which can better achieve sealing and flexible rotation effects.

[0034] The nozzle seat 2 is pressed against the sealing ring 12 at one end facing the connector 1. Specifically, the end face of the nozzle seat 2, together with the annular segment 121 and the radially extending segment 122 of the sealing ring 12, forms a sealed liquid outlet chamber 14. This liquid outlet chamber 14 is kept in communication with the liquid outlet channel 11 of the connector 1 through the opening at its bottom.

[0035] At least two sets of nozzles 3 are arranged in a circumferential array around the nozzle holder 2. This embodiment uses three nozzles as an example, with a 120-degree interval between adjacent nozzles 3. For each nozzle 3, the nozzle holder 2 has a corresponding liquid outlet 23, which connects the liquid outlet chamber 14 to the corresponding nozzle 3. Each liquid outlet 23 has a mounting base 21 on its exterior. The mounting base 21 is sleeve-shaped, with its axis parallel to the axis of the liquid outlet channel 11 and coaxial with the corresponding liquid outlet 23. The nozzles 3 are tightly inserted and fixed into the inner cavity of the mounting base 21 by an interference fit, ensuring a secure and sealed connection.

[0036] Each nozzle 3 is preferably an atomizing nozzle, but the specifications of their nozzles 31 are different, resulting in differences in their spray angles. These differences can vary in a gradient manner, such as spraying small-area spray, medium-area spray, and large-area spray, to meet different user needs.

[0037] To achieve axial positioning of the nozzle seat 2 and provide a tactile feedback during rotation, elastic clips 22 are provided on the outer ring of the nozzle seat 2. The number of elastic clips 22 corresponds to the number of nozzles 3. In this embodiment, there are three, and each elastic clip 22 is also arranged in a circumferential array. Each elastic clip 22 has a positioning protrusion 221 on its outer side. The positioning protrusion 221 is designed as an arc-shaped protrusion arranged circumferentially around the liquid outlet channel 11, and its two ends are machined with guide bevels 222. During assembly, when the nozzle seat 2 is pressed against the connector 1, the elastic clips 22 undergo elastic deformation, and the positioning protrusion 221 on them slides into the slot 13 on the connector 1 and engages with it, thereby preventing the nozzle seat 2 from axially falling off the connector 1.

[0038] When the user needs to switch nozzles, they rotate the nozzle seat 2. During rotation, the guide slope 222 of the positioning protrusion 221 slides relative to the side wall of the slot 13, forcing the elastic buckle 22 to undergo radial elastic deformation, causing the positioning protrusion 221 to disengage from the current slot 13. Continuing to rotate the nozzle seat 2, when the next elastic buckle 22 rotates to a position aligned with the slot 13, it quickly rebounds under its own elastic restoring force, causing the positioning protrusion 221 on it to engage in the slot 13. At this time, the nozzle 3 located on the same circumferential phase as the elastic buckle 22 has just rotated to the working position.

[0039] When a set of nozzles 3 rotates to the working position, the liquid outlet 23 corresponding to that nozzle 3 is axially aligned with and connected to the liquid outlet cavity 14 region enclosed by the radial extension 122 of the sealing ring 12. Other liquid outlets 23 are offset from the liquid outlet cavity 14 and the inner ring region of the annular segment 121 of the sealing ring 12, and are sealed and blocked by the end face of the nozzle seat 2 and the solid portion of the sealing ring 12. Therefore, at any given time, the liquid outlet channel 11 can only supply liquid to at most one set of nozzles 3 through the liquid outlet cavity 14, effectively preventing cross-contamination and accidental spraying.

[0040] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0041] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

Claims

1. A nozzle assembly, characterized in that, The device includes a connector (1) and a nozzle seat (2) that rotates coaxially with the connector (1). The connector (1) has an axially arranged outlet channel (11) that communicates with the liquid source. A sealing ring (12) is provided outside the outlet channel (11). At least one section of the sealing ring (12) extends outward in a direction away from the outlet channel (11). The nozzle seat (2) is pressed against the sealing ring (12) and surrounds the extended section of the sealing ring (12) to form an outlet cavity (14) that communicates with the outlet channel (11). At least two different nozzles (3) are provided on the nozzle seat (2). Each nozzle (3) is arranged in a circumferential array around the axis of the nozzle seat (2). The nozzle seat (2) is provided with a liquid outlet (23) corresponding to the position of each nozzle (3). When each liquid outlet (23) rotates with the nozzle seat (2) to the position corresponding to the liquid outlet chamber (14), the liquid outlet channel (11) supplies liquid to at most one set of nozzles (3) through the liquid outlet chamber (14) and the liquid outlet (23).

2. The nozzle assembly according to claim 1, characterized in that, The outer ring of the nozzle seat (2) is provided with elastic buckles (22) arranged in a circumferential array around the axis of the nozzle seat (2). The connector (1) is provided with a slot (13) corresponding to the position of the elastic buckle (22). The positioning protrusion (221) on the elastic buckle (22) engages with the slot (13) to achieve axial positioning of the nozzle seat (2).

3. A nozzle assembly according to claim 2, characterized in that, The positioning protrusion (221) is an arc-shaped protrusion arranged around the liquid outlet channel (11). The two ends of the positioning protrusion (221) are provided with guide slopes (222). When the positioning protrusion (221) is engaged in the slot (13), the guide slopes (222) abut against the side wall of the slot (13). When the nozzle seat (2) rotates, the positioning protrusion (221) slides relative to the slot (13) along the guide slopes (222) and disengages from the slot (13).

4. A nozzle assembly according to claim 2, characterized in that, The number of elastic clips (22) corresponds to the number of nozzles (3), and the spacing angle between adjacent elastic clips (22) corresponds to the spacing angle between adjacent nozzles (3).

5. A nozzle assembly according to any one of claims 1 to 4, characterized in that, The sealing ring (12) includes an annular segment (121) arranged around the liquid outlet channel (11) and in a non-closed shape. The opening of the annular segment (121) is closed by a radial extension segment (122) extending radially outward along the liquid outlet channel (11). Each liquid outlet (23) is offset from the inner ring area of ​​the annular segment (121) of the sealing ring (12).

6. A nozzle assembly according to any one of claims 1 to 4, characterized in that, The nozzle seat (2) is provided with a mounting seat (21) arranged in a sleeve shape along the axis of the parallel liquid outlet channel (11). The mounting seat (21) is coaxially arranged with the corresponding liquid outlet (23), and the outer diameter of each nozzle (3) matches the inner diameter of the mounting seat (21).

7. A nozzle assembly according to claim 6, characterized in that, The nozzle (3) and the inner cavity of the mounting base (21) form an interference fit.

8. A nozzle assembly according to any one of claims 1 to 4, characterized in that, Each nozzle (3) is an atomizing nozzle, and the spray angle of the nozzle (31) of each nozzle (3) is different.

9. A nozzle assembly according to claim 8, characterized in that, Around the liquid outlet channel (11), the spray angle of adjacent nozzles (3) changes in a gradient manner.

10. A sprayer cap, characterized in that, The nozzle assembly includes any one of claims 1 to 4, wherein a pressing head (41) is provided on the cap (4), the connector (1) is coaxially fixed with the pressing head (41), and the pressing outlet of the pressing head (41) is connected to the liquid outlet channel (11) of the connector (1).

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