Integral spray bottle nozzle

Abstract

The application discloses an integrated spray bottle nozzle, and belongs to the technical field of spray bottle nozzles. The nozzle body is integrally formed by injection molding or 3D printing, and is internally provided with an atomization channel penetrating through front and back, one end of which is communicated with the outside, and the other end is connected with an elastic air bag. The nozzle body is also provided with a liquid suction channel which is downwardly communicated, and the top of which is connected with the atomization channel, and the bottom of which is extended into the bottom of the bottle body through a liquid suction pipe. The atomization channel comprises a diffusion channel and a compression channel, and the connecting part of the two channels forms a compression port. The top of the liquid suction channel is connected with the front side of the compression port and is tangent to the compression port. The diffusion channel is divided into two sections, the compression channel is designed with a specific contraction, and the rear end of the diffusion channel is connected with an airflow channel. The rear end of the nozzle body is provided with a connecting part for sleeving the elastic air bag and arranging the airflow channel. The top of the liquid suction channel is provided with a necking structure, and the tail end is provided with a horn-shaped limiting channel. The spray bottle nozzle has a simple structure, reduces the cost and assembly difficulty, and improves the atomization effect and practicality.

Description

Technical Field

[0001] This invention relates to the field of spray nozzle technology, and particularly to an integrated spray nozzle. Background Technology

[0002] As a key container for holding and spraying perfume, the design of the spray nozzle directly affects the spraying effect, ease of use, and production cost. Traditional perfume bottles typically rely on specific spray nozzle structures to achieve a uniform mist spraying effect. These structures often contain multiple precision components that atomize the liquid through complex mechanical processes.

[0003] Taking the "Small Pump Perfume Sprayer" disclosed in Chinese Patent Application Publication No. CN117442001A as an example, this invention proposes an improved perfume sprayer design, aiming to solve the technical problem of combining a piston structure with a valve stem protrusion structure to achieve spring sealing and valve stem limiting, a technique rarely used in existing similar products. Specifically, this sprayer forms a complex liquid atomization mechanism by setting intricate structures such as a middle ring, liquid guide groove, and liquid guide hole on the piston, combined with the protrusion and limiting rib on the valve stem, and a specific layout of long and short springs. Although this design improves the stability and efficiency of spraying to some extent, its complex structure, numerous parts, cumbersome assembly process, and high cost remain significant problems.

[0004] Specifically, the complexity of this type of sprayer is reflected in several aspects: First, core components such as pistons, valve stems, and valve needles need to be precisely manufactured to ensure a tight fit between the components; second, the installation and positioning of the springs have high requirements, and any slight deviation may affect the spraying effect; therefore, multiple processes are required during assembly, increasing labor and time costs. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an integrated spray nozzle to solve the problems of complex structure and high cost.

[0006] An integrated spray nozzle includes an integrally molded nozzle body. The nozzle body has a front-to-back atomizing channel inside. One end of the atomizing channel is connected to the outside for spraying out a mist of liquid, and the other end is connected to an elastic airbag for inhaling or exhaling air.

[0007] The bottle mouth body is also provided with a downward-directing liquid suction channel inside. The top of the liquid suction channel is connected to the atomizing channel, and the bottom is extended into the bottom of the bottle body through the liquid suction tube to draw in liquid. When the elastic airbag is squeezed or released, a compressed airflow is generated in the atomizing channel to form a negative pressure, which draws the liquid from the liquid suction channel. When the liquid enters the atomizing channel, it is sprayed out along with the compressed airflow to form a spray.

[0008] With the liquid ejection direction as forward, the atomizing channel includes a diffusion channel in the front section and a compression channel in the rear section. The connection between the diffusion channel and the compression channel forms a compression port. The diffusion channel gradually expands from back to front.

[0009] The diffusion channel consists of two segments from the inside out. The length of the first diffusion channel is twice that of the second diffusion channel. The diffusion angle of the first diffusion channel is 4°-6°, and the diffusion angle of the second diffusion channel is 22°-25°.

[0010] The beneficial effects of this invention are:

[0011] The integrated spray nozzle of this invention simplifies the structure and reduces the number of parts through a one-piece molding design. This avoids the problems of high manufacturing precision requirements, cumbersome assembly processes, and high costs associated with traditional complex sprayers due to the need for multiple precision components, thus reducing production costs and assembly difficulty. Simultaneously, the inclusion of atomization channels, diffusion channels, and compression channels within the nozzle body, combined with the air intake and aerosol action of the elastic airbag, effectively improves liquid atomization, extends spray duration, and enhances ease of use and stability. Furthermore, the constricted structure and limiting channel design of the suction channel prevent liquid backflow and accommodates various diameter suction tubes, improving practicality. Attached Figure Description

[0012] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0013] Figure 1 This is a three-dimensional structural diagram of the spray nozzle mounted on the bottle body in this embodiment;

[0014] Figure 2 This is a schematic cross-sectional view of the spray nozzle mounted on the bottle body in this embodiment;

[0015] Figure 3 This is a schematic diagram of the bottle nozzle body in this embodiment;

[0016] Figure 4 This is a schematic cross-sectional view of the bottle nozzle body in this embodiment;

[0017] Figure 5 for Figure 4 Enlarged view of region A in the middle;

[0018] The attached figures are labeled as follows: 1-Nose body, 2-Atomization channel, 3-Elastic airbag, 4-Liquid suction channel, 5-Liquid suction tube, 21-Diffusion channel, 22-Compression channel, 23-Compression port, 211-First diffusion channel, 212-Second diffusion channel, 6-Airflow channel, 7-Connecting part, 8-Snap-fit ​​structure, 9-Narrowing structure, 10-Limiting channel. Detailed Implementation

[0019] This invention provides an integrated spray nozzle. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention.

[0020] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0021] Please see Figures 1 to 5 :

[0022] This embodiment discloses an integrated spray nozzle, which is installed at the mouth of a bottle body. Specifically, it includes a nozzle body 1, which is integrally formed by injection molding or 3D printing. The nozzle body 1 has a front-to-back atomizing channel 2 inside. One end of the atomizing channel 2 is connected to the outside for spraying a mist of liquid, and the other end is connected to an elastic airbag 3 for inhaling or exhaling air. The nozzle body 1 also has a downward-directing liquid suction channel 4 inside. The top of the liquid suction channel 4 is connected to the atomizing channel 2, and the bottom is extended to the bottom of the bottle body through a liquid suction tube 5 for absorbing liquid. When the elastic airbag 3 is squeezed or released, a compressed airflow is generated in the atomizing channel 2, thereby forming a negative pressure that can draw liquid from the liquid suction channel 4. When the liquid enters the atomizing channel 2, it is sprayed out along with the compressed airflow to form a spray.

[0023] Specifically, such as Figure 2As shown, with the liquid ejection direction as the front, the atomizing channel 2 includes a diffusion channel 21 located at the front for connecting to the outside and a compression channel 22 located at the rear for connecting to the elastic airbag 3. The connection between the diffusion channel 21 and the compression channel 22 forms a compression port 23. The diffusion channel 21 gradually expands from back to front, and the diameter of the compression port 23 is smaller than the diameter of the rear port of the diffusion channel 21, specifically 0.6-0.8 times the diameter of the rear port of the diffusion channel 21. The compression channel 22 gradually contracts from back to front, so that the diameter of the front port of the compression channel 22 is equal to the diameter of the compression port 23. In addition, the top of the liquid suction channel 4 is specifically connected to the front side of the compression port 23 and is tangent to the compression port 23.

[0024] In this embodiment, as Figure 2 As shown, the suction tube 5 forms a one-way seal after being inserted into the liquid in the bottle. When the elastic airbag 3 is pressed, the gas in the elastic airbag 3 is pushed into the compression channel 22 for compression. Subsequently, the compressed gas enters the diffusion channel 21 from the compression port 23, forming a high-speed airflow. According to the principle that the greater the airflow velocity, the lower the pressure, the high-speed airflow will form a low-pressure area at the compression port 23, thereby sucking up the liquid in the bottle. When the elastic airbag 3 is released, the elastic airbag 3 rebounds to its original position due to its own elasticity. The airbag 3 will draw in the outside air again. When the returning air passes through the compression port 23, it will also generate negative pressure, thereby drawing up the liquid again. When the liquid enters the compression port 23 from the liquid suction channel 4, the liquid will accumulate on the front side of the compression port 23 because the top of the liquid suction channel 4 is connected to the front side of the compression port 23. When the elastic airbag 3 is compressed again, the compressed gas discharged from the compression port 23 will expand instantly because the diameter of the port at the rear end of the diffusion channel 21 is larger than the diameter of the compression port 23, and the liquid in the diffusion channel 21 will be atomized and sprayed out.

[0025] In this embodiment, as Figure 4 As shown, the diffusion channel 21 comprises two segments from the inside out. The length of the first diffusion channel 211 is twice that of the second diffusion channel 212, and the diffusion angle of the first diffusion channel 211 is 4°-6°, preferably 5°. The diffusion angle of the second diffusion channel 212 is 22°-25°, preferably 24°. When the compressed gas is ejected from the compression port 23, the liquid is initially atomized in the first diffusion channel 211. After entering the second diffusion channel 212, the gas expands again, causing the liquid to be atomized a second time, thereby improving the atomization effect.

[0026] In this embodiment, as Figure 4As shown, the length of the compression channel 22 is 1 / 3 of the length of the diffusion channel 21. In addition, the diameter of the rear port of the compression channel 22 is 1.5-1.7 times the diameter of the front port, and the contraction angle from back to front is 8°-10°, preferably 9°. The short path combined with the larger contraction angle can improve the compression ratio of the airflow. Therefore, when the airflow enters the compression channel 22, the compressed air has a higher airflow velocity, and the negative pressure effect is stronger, thereby increasing the liquid rising speed and improving the atomization effect.

[0027] Furthermore, such as Figure 5 As shown, the rear end of the compression channel 22 is also connected to the airflow channel 6. The diameter of the front end of the airflow channel 6 is larger than the diameter of the rear end of the compression channel 22. Thus, when the air in the elastic airbag 3 enters the compression channel 22 from the airflow channel 6, it can be compressed once, and when it flows through the compression channel 22, it can be compressed a second time. In addition, the connection between the front end of the airflow channel 6 and the compression channel 22 is rounded, which can improve the smoothness of airflow and avoid turbulence.

[0028] In this embodiment, as Figure 3 As shown, the rear end of the bottle mouth body 1 is provided with a rearward extending connecting part 7, the elastic airbag 3 is sleeved on the extended end of the connecting part 7, the airflow channel 6 is provided in the connecting part 7, and in order to facilitate the tight fitting of the elastic airbag 3, a snap-fit ​​structure 8 is also provided on the outer surface of the end of the connecting part 7. The snap-fit ​​structure 8 is a series of annular reverse teeth with the tips pointing forward.

[0029] Furthermore, the diameter of the airflow channel 6 is 2-3 times the diameter of the rear port of the compression channel 22, and the length is 10-12 times the length of the compression channel 22. Thus, a portion of air can also be stored in the airflow channel 6. The air stored in the airflow channel 6 can replenish the airflow when the elastic airbag 3 is reset, reduce negative pressure fluctuations, thereby prolonging the spray duration and improving the spray effect.

[0030] In this embodiment, as Figure 4 As shown, the top of the liquid suction channel 4 is also provided with a constriction structure 9, so that the top of the liquid suction channel 4 is connected to the diffusion channel 21 through the constriction structure 9. From the cross-sectional view, the diameter of the connection between the constriction structure 9 and the diffusion channel 21 is 1 / 2 of the diameter of the liquid suction channel 4. The constriction structure 9 can prevent the ejected airflow from entering the liquid suction channel 4 and causing the liquid to flow back. In addition, the constriction structure 9 can also reduce the amount of water entering the diffusion channel 21, so as to fully atomize the liquid in the diffusion channel 21 and improve the atomization effect.

[0031] In this embodiment, as Figure 4As shown, the end of the suction channel 4 is provided with a limiting channel 10 for the insertion of the suction tube 5. The limiting channel 10 expands in an arc shape from top to bottom to form a trumpet shape. This arc expansion structure is easy to adapt to suction tubes 5 with a diameter of 2-3 mm, thereby improving practicality.

[0032] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. An integrated spray bottle spout characterized by, The bottle nozzle body is internally provided with an atomizing channel penetrating from front to back, one end of the atomizing channel is communicated with the outside for spraying liquid mist, and the other end is connected with an elastic air bag for inhaling or spraying air; The inside of the bottle nozzle body is also provided with a liquid suction channel downwardly communicated, the top of the liquid suction channel is connected with the atomizing channel, and the bottom of the liquid suction channel is extended into the bottom of the bottle body through a liquid suction pipe for sucking liquid; when the elastic air bag is loosened, compressed air flow is generated in the atomizing channel to form negative pressure, so that the liquid is sucked from the liquid suction channel, and when the liquid enters the atomizing channel, it is sprayed together with the compressed air flow to form a mist; The atomizing channel comprises a diffusion channel located at the front section and a compression channel located at the rear section, the connection between the diffusion channel and the compression channel forms a compression port, and the diffusion channel gradually expands from back to front; The diffusion channel comprises two sections from inside to outside, the length of the first section diffusion channel is 2 times the length of the second section diffusion channel, the diffusion angle of the first section diffusion channel is 4°-6°, and the diffusion angle of the second section diffusion channel is 22°-25°; The diameter of the compression port is 0.6-0.8 times the diameter of the rear port of the first section diffusion channel, the compression channel gradually contracts from back to front, the front port diameter of the compression channel is equal to the diameter of the compression port, and the top of the liquid suction channel is connected to the front side of the compression port and tangent to the compression port; The rear end of the compression channel is also connected with an air flow channel, the front port diameter of the air flow channel is greater than the rear port diameter of the compression channel, and the connection between the front end face of the air flow channel and the compression channel is provided with a rounded corner; The top of the liquid suction channel is provided with a necking structure, and the diameter of the connection port of the necking structure and the diffusion channel is 1 / 2 of the diameter of the liquid suction channel.

2. The integrated spray bottle spout of claim 1, wherein, The length of the compression channel is 1 / 3 of the length of the diffusion channel, the rear port diameter of the compression channel is 1.5-1.7 times the front port diameter, and the contraction angle from back to front is 8°-10°.

3. The one-piece spray bottle finish of claim 1, wherein, The rear end of the bottle nozzle body is provided with a connection part extending rearward, the elastic air bag is sleeved at the extension end of the connection part, the air flow channel is arranged in the connection part, and the outer surface of the end of the connection part is provided with a clamping structure.

4. The integrated spray bottle spout of claim 3, wherein, The clamping structure is a plurality of annular inverted teeth with the tips deviated forward.

5. The one-piece spray bottle finish of claim 1, wherein, The diameter of the air flow channel is 2-3 times the rear port diameter of the compression channel, and the length of the air flow channel is 10-12 times the length of the compression channel.

6. The one-piece spray bottle finish of claim 1, wherein, The end of the liquid suction channel is provided with a limiting channel for inserting the liquid suction pipe, and the limiting channel is arc-shaped and expanded downward to form a horn shape.

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