Spray bottle nozzle with embedded protective structure

Abstract

The utility model discloses a spray bottle nozzle with an embedded protective structure. A three-stage atomization pipeline is arranged in the spray head, is made of POM engineering plastics and is expanded in a stepped mode, telescopic friction is reduced through gradient buffering, and smooth flowing of high-viscosity liquid is ensured by plating a super-hydrophobic coating (tetrafluoroethylene) on the inner wall. A high-precision spray hole in the inner side of the spray head is processed through picosecond laser, and the diameter of atomized particles reaches 10-30 microns in cooperation with a three-stage pipeline system. The medical-grade composite gel layer with the silver ion antibacterial agent embedded in the arc-shaped sunken structure is adopted on the outer side, and dismounting and cleaning are convenient. Spraying is controlled through an anti-mistaken-touch spring lock catch mechanism (3.2-3.5 N trigger force), and 10-30 [mu] m fine atomization of liquid is achieved through three-stage treatment. By means of the design, the loss rate of essence is smaller than or equal to 0.3%, blockage is avoided after 200 times of continuous spraying, and excellent anti-pollution performance and atomization effect are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to liquid container technical field, more particularly to a spray bottle nozzle with embedded protection structure, which is suitable for the scene with strict requirements on the spray port hygiene, such as pharmaceutical preparations (such as nasal spray), high-end cosmetics (essence, sunscreen spray) and precision instrument cleaner. BACKGROUND

[0002] With the rapid development of the cosmetics industry towards portability and refinement, spray bottles (pen-shaped telescopic spray devices) are rapidly popularizing in the application scene with strict hygiene requirements, such as essence, perfume trial pack, high-end cosmetics and precision instrument cleaner, due to their exquisite and compact appearance design and convenient one-handed operation. However, the special structural design of such products also brings significant technical challenges, especially in terms of anti-pollution and atomization performance.

[0003] In terms of anti-pollution, the telescopic structure of existing spray bottles has obvious defects. When the spray port is fully extended, the excessive exposure distance makes it easy for the user's fingers to directly contact the surface of the spray port, causing bacterial contamination. More seriously, the liquid residue in the telescopic gap of the spray pipe forms a breeding ground for bacteria, with a pollution level far exceeding the limit of the cosmetics hygiene standard. These hygiene hazards not only affect product performance, but also may pose a potential threat to user health.

[0004] In terms of atomization performance, due to miniaturization design, the length of the spray channel of traditional products is generally insufficient, resulting in excessively large droplet size (usually exceeding 50 μm), which makes it difficult to meet the atomization requirements of high-adhesion essence. This technical shortcoming not only reduces the user experience, but also restricts the application expansion of products in the fields of high-end cosmetics and precision instrument cleaning.

[0005] Based on this, the utility model innovatively proposes a spray bottle nozzle with embedded protection structure. This design effectively solves the problems of anti-pollution and atomization performance in existing technology through unique mechanical structure innovation, providing users with a safer, more efficient and convenient user experience. SUMMARY

[0006] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a spray bottle nozzle with embedded protection structure, which aims to solve the problems of pollution exposure, incomplete atomization, cleaning difficulty, easy accidental touch and leakage, and possible blockage of existing spray bottle nozzles, not only can prevent bacteria and infection, and has an attractive appearance, but also can better atomize essence, and is convenient for cleaning and maintenance.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A spray bottle nozzle with an embedded protection structure, the nozzle is provided with three-stage atomization pipeline in the nozzle, from inside to outside, it is first-stage injection pipeline, second-stage injection inclined way and third-stage injection pipeline, the diameter of the first-stage injection pipeline is smaller than the diameter of the third-stage injection pipeline, and the two pipelines are parallel, the second-stage injection inclined way is horn-shaped, and the inclination angle relative to the first-stage injection pipeline is 15°±2°, the outer side of the nozzle is arc-shaped recess structure, which is connected with the third-stage injection pipeline, and the inner side of the nozzle is also provided with a spray hole, and the spray hole is located at the inner end of the first-stage injection pipeline.

[0009] As a further preferred solution, the inner recess depth of the arc-shaped recess structure is 3.2±0.1mm, and the curvature radius is 5.5mm.

[0010] As a further preferred solution, the three-stage atomization pipeline adopts POM pipe body and is provided with polytetrafluoroethylene on the inner wall, and the thickness of the polytetrafluoroethylene is 200nm-300nm.

[0011] As a further preferred solution, the joints of the first-stage injection pipeline, the second-stage injection inclined way and the third-stage injection pipeline are coated with fluorinated nano coating, the fluorinated nano coating is arranged on the polytetrafluoroethylene coating, and the thickness of the fluorinated nano coating is 50nm-80nm.

[0012] As a further preferred solution, the diameter of the third-stage injection pipeline is 2.5mm.

[0013] As a further preferred solution, the arc-shaped recess structure is detachably connected with a resin gel plug head.

[0014] As a further preferred solution, the aperture of the spray hole is 0.1mm.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. Three-stage atomization pipeline is adopted in the nozzle, which expands in a ladder type from inside to outside, so that the liquid is atomized and diffused in a ladder type in the nozzle. At the same time, the outermost layer of the nozzle and the contact part outside are provided with a detachable resin gel plug head, which is convenient for users to regularly disassemble, clean or replace, so as to solve the cleaning problem after long-term use.

[0017] 2. POM pipe body and 200-300nm PTFE (polytetrafluoroethylene) super-hydrophobic coating (contact angle ≥110°) on the inner wall are combined, so that the nozzle can also maintain smooth flow when using high-viscosity liquid, and the blocking phenomenon is avoided.

[0018] 3. Adopt 0.1mm super micro nozzle (conventional nozzle diameter size is 0.2mm), further refine the essence liquid particle size, improve the atomization effect, improve the user's use experience. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the front structure diagram of the spray head;

[0021] Figure 3 It is Figure 2 The longitudinal section structure diagram.

[0022] Among them: 1, spray head;2, storage bottle;3, spray bottle shell;4, nozzle;5, primary spray pipeline;6, secondary spray inclined way;7, tertiary spray pipeline;8, arc recess structure;9, prevent mistaken touch lock. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0024] As Figures 1-3 The utility model discloses a spray bottle spray head with embedded protection structure, and the spray head 1 and the storage bottle 2 are located in the spray bottle shell 3, the spray head 1 is located on the upper end of the storage bottle 2, and the detailed connection relationship of the three belongs to the prior art, which will not be repeated here.

[0025] Further, the nozzle of the spray head 1 is provided with a three-stage atomizing pipeline made of POM engineering plastic with a hardness of HRC 85-90, which is ladder-shaped and has a height difference of 0.8-1.2 mm between each stage, and from inside to outside, it is sequentially provided with a first-stage spraying pipeline 5, a second-stage spraying inclined path 6, and a third-stage spraying pipeline 7. The diameter of the first-stage spraying pipeline 5 is smaller than that of the third-stage spraying pipeline 7, and the two pipelines are parallel. The second-stage spraying inclined path 6 is trumpet-shaped. The first-stage spraying pipeline 5 serves as an initial acceleration section of the atomizing system, and the second-stage spraying inclined path 6 is designed at an optimized inclination angle of 15°±2° relative to the first-stage spraying pipeline 5. The inclined surface is specially polished to enable better dispersion and refinement of the liquid when it passes through the second-stage spraying inclined path 6, thereby effectively enhancing the shearing action of the liquid. The third-stage spraying pipeline 7 has a diameter of 2.5 mm to generate controllable initial turbulent flow. The three-stage atomizing pipeline is designed through a gradient buffer structure to significantly reduce friction, and the wear rate is reduced by 62% compared with the traditional design, as verified by the ISO 9352 standard wear test. In addition, the inner wall of the three-stage atomizing pipeline is coated with a 200-300 nm thick PTFE (polytetrafluoroethylene) super-hydrophobic coating (contact angle ≥110°) through a vapor deposition process to ensure smooth flow of high-viscosity liquid (500-5000 cP). The entire system can withstand more than 200 continuous spraying tests without clogging (test: 200 times of continuous spraying of glycerol solution without clogging).

[0026] Further, the joints between the first-stage spraying pipeline 5 and the second-stage spraying inclined path 6, and the second-stage spraying inclined path 6 and the third-stage spraying pipeline 7 are coated with a fluorinated nano coating, which is provided on a teflon coating and has a thickness of 50-80 nm, thereby significantly improving the sealing and durability of the joints. The coating utilizes the super-hydrophobicity and chemical inertness of fluorinated materials to effectively isolate moisture and corrosive media, prevent corrosion and leakage of the joints, and at the same time, its extremely low surface energy reduces fluid friction resistance, and has excellent anti-adhesion, self-cleaning, and wear resistance.

[0027] Further, the inside of the spray head 1 is provided with a high-precision spray hole 4 processed by picosecond laser (wavelength 355 nm, pulse frequency 100 kHz), which is located at the inner end of the first-stage spraying pipeline 5. The spray hole 4 has a precise aperture of 0.1 mm (50% smaller than the conventional 0.2 mm), and the roundness error is <2 μm. In combination with the three-stage atomizing pipeline, the atomized particle size can be stabilized in the range of 10-30 μm (tested by laser diffraction method, ISO 13320).

[0028] Further, the outside of the spray head 1 adopts an ergonomic arc-shaped recess structure 8 with a depth of 3.2±0.1mm and a curvature radius of 5.5mm, forming a physical isolation zone. The structure is embedded with a medical-grade silicone-polyurethane composite gel plug head (hardness Shore A30-35, thickness 0.5-1.0mm), which contains 0.5% silver ion antibacterial agent (ISO 22196 standard certified antibacterial rate ≥99.9%) and is detachably connected with the spray head 1 body, facilitating the user to regularly detach and clean or replace the gel wrapping layer to solve the cleaning problem after long-term use.

[0029] When the user presses the spray head 1 to apply a pressing force of 3.2-3.5N (in line with the EN ISO 6385 ergonomics standard), the built-in anti-misoperation lock 9, a spring-type double locking mechanism (using a stainless steel spring with a wire diameter of 0.8mm and an elastic coefficient of 12N / mm), is precisely released from physical blockage through a precision tolerance of ±0.1mm, ensuring the high controllability of the channel opening timing. At the moment of lock release, a negative pressure is formed inside the system, stably sucking the liquid from the storage bottle 2, and the liquid forms fine mist droplets of 10-30μm through the spray hole 4, and through the initial acceleration of the primary spray pipeline 5, the liquid enters the secondary spray inclined channel 6 with an inclination angle of 15°±2°, where high-speed shearing occurs; then the liquid enters the tertiary spray pipeline 7 with a diameter of 2.5mm to realize atomization and diffusion.

[0030] The preferred embodiments of the utility model are described in detail above, but the utility model is not limited to the specific details in the above embodiments, and various equivalent transformations of the technical solutions of the utility model can be made within the technical concept of the utility model, and these equivalent transformations all belong to the protection scope of the utility model.

Claims

1. A spray bottle spout having an inlaid guard structure, characterized by: The nozzle of the spray head (1) is provided with a three-stage atomizing pipeline, which is sequentially provided with a first-stage spraying pipeline (5), a second-stage spraying inclined path (6) and a third-stage spraying pipeline (7) from inside to outside, the diameter of the first-stage spraying pipeline (5) is smaller than that of the third-stage spraying pipeline (7), and the two pipelines are parallel, the second-stage spraying inclined path (6) is horn-shaped, and the inclination angle thereof relative to the first-stage spraying pipeline (5) is 15°±2°, the outer side of the spray head (1) is provided with an arc-shaped recess structure (8) connected with the third-stage spraying pipeline (7), and the inner side of the spray head (1) is further provided with a spray hole (4), and the spray hole (4) is located at the inner end of the first-stage spraying pipeline (5).

2. A spray bottle spout with an inlaid protective structure according to claim 1, wherein: The inner recess depth of the arc-shaped recess structure (8) is 3.2±0.1mm, and the curvature radius is 5.5mm.

3. A spray bottle spout with an inlaid protective structure according to claim 1, wherein: The three-stage atomizing pipeline adopts a POM pipe body, and the inner wall is provided with polytetrafluoroethylene, and the thickness of the polytetrafluoroethylene is 200nm-300nm.

4. A spray bottle spout with an inlaid protective structure according to claim 3, wherein: The joints of the first-stage spraying pipeline (5) and the second-stage spraying inclined path (6), and the second-stage spraying inclined path (6) and the third-stage spraying pipeline (7) are coated with a fluorinated nano coating, the fluorinated nano coating is arranged on the polytetrafluoroethylene coating, and the thickness of the fluorinated nano coating is 50nm-80nm.

5. A spray bottle spout with an inlaid protective structure according to claim 1, wherein: The diameter of the third-stage spraying pipeline (7) is 2.5mm.

6. A spray bottle spout with an inlaid protective structure according to claim 1, wherein: The arc-shaped recess structure (8) is detachably connected with a resin gel plug head.

7. A spray bottle spout with an inlaid protective structure according to claim 1, wherein: The aperture of the spray hole (4) is 0.1mm.

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