Dropper blade structure

The multi-layer scraper structure design solves the problem of incomplete scraping by scrapers, achieving efficient scraping of cosmetics and improved sealing, thus simplifying the production process.

CN224393424UActive Publication Date: 2026-06-23NINGBO SANGSAN PLASTIC PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO SANGSAN PLASTIC PROD CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing scraper structure of dropper bottles can easily lead to waste and incomplete removal of cosmetics, especially those with high viscosity.

Method used

A multi-layer scraper structure is designed, with each layer consisting of multiple scrapers. A drain outlet is formed between adjacent scrapers. The inner side of the scraper is attached to the outer surface of the dropper. The multi-layer scrapers are staggered to scrape off cosmetics in 360° and return them to the bottle through the drain outlet, thus preventing cosmetics from adhering to the outside of the bottle.

Benefits of technology

It achieves efficient removal of cosmetics, reduces waste, improves the cleanliness and sealing of the dropper, and simplifies the production process.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224393424U_ABST
    Figure CN224393424U_ABST
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Abstract

The utility model discloses a kind of scraper structures of dropper, including bottle plug, cylinder and scraper, bottle plug is fixedly connected on the outer side of cylinder upper end, cylinder lower end inner side is arranged and set to above-mentioned scraper in multiple layers, each layer of scraper is formed by at least two scrapers arranged around the inner circumference of cylinder, and forms drainage port between adjacent two scrapers, the inner side of scraper is provided with camber surface that can adhere to the outer surface of dropper, the projection of the camber surface of multiple layers of scrapers on horizontal plane encloses circle.The utility model proposes a kind of scraper structure, improves cosmetic scraping effect.
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Description

Technical Field

[0001] This utility model relates to the field of dropper bottle technology, and in particular to a dropper scraper structure. Background Technology

[0002] Dropper bottles are a common type of cosmetic container. Existing dropper bottles consist of a bottle body, a dropper, and a scraper. The cosmetic is placed in the bottle body, and the scraper is installed inside the bottle opening. The dropper passes through the bottle opening and the scraper and is inserted into the bottle body, with the lower end of the dropper immersed in the cosmetic. When taking the cosmetic, the lower end of the dropper draws up the cosmetic, and the cosmetic is pulled upwards from the bottle body. The scraper removes the cosmetic from the outside of the dropper to prevent it from dripping and being wasted.

[0003] Existing scraper structures such as Figure 9 and Figure 10 As shown, it includes a cylinder 91 and an annular scraper 92. The annular scraper is fixedly connected to the inner circumference of the lower end of the cylinder. A drain port 93 is provided on the side of the lower end of the cylinder. In use, the annular scraper wraps around the dropper. The function of the drain port is: when there is liquid accumulation on the upper side of the annular scraper, the cosmetic can flow downward back into the bottle through the drain port. The function of the annular scraper is: when the dropper moves upward, the annular scraper scrapes off the cosmetic on the surface of the dropper. However, when the viscosity of the cosmetic is high, the cosmetic is easy to bypass the annular scraper from the outside and re-adhere to the dropper. As a result, after the dropper 94 is pulled out, there is still cosmetic 95 attached to the surface, which ultimately leads to waste of cosmetic. Utility Model Content

[0004] To address the shortcomings of existing scraper structures that fail to remove cosmetics effectively, this invention proposes a scraper structure that improves the cosmetic removal effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dropper scraper structure includes a stopper, a cylinder, and scrapers. The stopper is fixedly connected to the outer side of the upper end of the cylinder. Multiple scrapers are arranged vertically on the inner side of the lower end of the cylinder. Each scraper consists of at least two scrapers arranged around the inner periphery of the cylinder. A drain port is formed between two adjacent scrapers. The inner side of the scraper is provided with an arc surface that can conform to the outer surface of the dropper. The projection of the arc surfaces of the multiple scrapers on the horizontal plane forms a circle.

[0007] With the above setup, the upper and lower multi-layer scrapers are staggered to remove cosmetics from the surface of the dropper in 360°. The drain outlet is located between two adjacent scrapers, and cosmetics on the upper part of the scraper can be drained back into the bottle through the drain outlet. No drain outlet is provided on the outside of the bottle to isolate cosmetics and prevent cosmetics outside the bottle from re-adhering to the dropper, thereby improving the cleanliness of the dropper.

[0008] Furthermore, the scraper is configured with two layers.

[0009] The above settings reduce the number of scraper layers, simplify the scraper structure, and facilitate production.

[0010] Furthermore, each layer of scraper is equipped with 4 scrapers.

[0011] Furthermore, the central angle corresponding to the arc surface of the lower scraper is a, and the central angle corresponding to the arc surface of the upper scraper is b, where a+b>=90°.

[0012] The above settings further enhance the scraping effect of the scraper structure.

[0013] Furthermore, a conical surface with a larger upper diameter and a smaller lower diameter is provided on the inner circumference of the upper end of the cylinder.

[0014] The above design facilitates the downward insertion of the dropper into the cylinder and also improves the sealing of the upper part of the cylinder.

[0015] Furthermore, the bottle stopper has raised ribs on its outer periphery.

[0016] The above settings improve the seal between the stopper and the bottle opening. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the dropper bottle used in an embodiment.

[0018] Figure 2 This is a schematic diagram of the dropper and scraper structure in an embodiment.

[0019] Figure 3 This is an exploded view of the dropper and scraper structure in an embodiment.

[0020] Figure 4 This is a schematic diagram of the scraper structure in an embodiment.

[0021] Figure 5 This is a bottom view of the scraper structure in an embodiment.

[0022] Figure 6 for Figure 5 AA sectional view.

[0023] Figure 7 for Figure 6 BB cross-sectional view.

[0024] Figure 8 for Figure 6 CC section view.

[0025] Figure 9 This is a schematic diagram of an existing scraper structure.

[0026] Figure 10 This is a schematic diagram of an existing scraper structure. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0028] like Figures 1 to 8 A dropper scraper structure includes a bottle stopper 3, a cylinder 4, and scrapers 5. The bottle stopper 3 is fixedly connected to the outer side of the upper end of the cylinder 4. Multiple scrapers 5 are arranged vertically on the inner side of the lower end of the cylinder 4. Each scraper 5 consists of at least two scrapers 5 arranged around the inner circumference of the cylinder 4. A drain port 6 is formed between two adjacent scrapers 5. The inner side of the scraper 5 is provided with an arc surface 8 that can conform to the outer surface of the dropper 7. The projection of the arc surface 8 of the multiple scrapers 5 on the horizontal plane forms a circle.

[0029] With the above configuration, the upper and lower multi-layer scrapers 5 are staggered to remove cosmetics from the surface of the dropper 7 in 360°. The drain port 6 is located between two adjacent scrapers 5, and the cosmetics on the upper side of the scraper 5 can be drained back to the bottle body 12 through the drain port 6. No drain port 6 is provided on the outside of the cylinder 4 to isolate the cosmetics and prevent the cosmetics outside the cylinder 4 from re-adhering to the dropper 7, thereby improving the cleanliness of the dropper 7.

[0030] The stopper 3, cylinder 4, and scraper 5 of this application are integrally molded plastic structures. The stopper 3 is adapted to the mouth of the dropper bottle body 12, and is inserted into the mouth to ensure a tight seal. The cylinder 4 is basically cylindrical and vertically positioned at the center of the stopper 3. A channel is formed on the inner side of the cylinder 4 that penetrates the stopper 3, facilitating the insertion of the dropper 7 into the bottle body 12. The scraper 5 has multiple layers, with multiple scrapers 5 in each layer. For example, two layers of scrapers 5 with four scrapers 5 in each layer, resulting in a total of eight scrapers 5. Alternatively, three layers of scrapers 5 with three scrapers 5 in each layer, resulting in a total of eight scrapers 5. Nine scrapers 5 are placed; here, taking two layers of scrapers 5, with four scrapers 5 in each layer as an example, all scrapers 5 in each layer are at the same height and are evenly arranged around the inner circumference of the cylinder 4. There is a gap between two adjacent scrapers 5, forming a drain port 6. When there is cosmetic on the upper side of the scraper 5, the cosmetic can be drained back into the bottle 12 through the drain port 6, preventing cosmetic residue on the upper side of the scraper 5 from causing cosmetic deterioration or preventing cosmetic from adhering to the dropper 7 later; the upper and lower layers of scrapers 5 are staggered, that is, the lower scraper 5 is located below the drain port 6 of the upper layer, and the upper scraper 5 is located above the drain port 6 of the lower layer, as shown. Figure 5 As shown, when viewed from below, the upper and lower scraper blades 5 form a circular structure, allowing the scraper blades 5 to apply cosmetics to the surface of the dropper 7 in a 360° manner. Figure 1, when the dropper 7 is inserted into the bottle body 12, the arc surface 8 inside the scraper 5 fits on the surface of the dropper 7. When the dropper 7 is pulled out, the four scrapers 5 in the lower layer first scrape off a part of the cosmetics, and the other part of the cosmetics will continue to move upward with the dropper 7 through the drainage port 6 in the lower layer. When it encounters the scraper 5 in the upper layer, the scraper 5 in the upper layer scrapes off this part of the cosmetics, and finally all the cosmetics on the surface of the dropper 7 are scraped off; the cylinder body 4 of the present application is different from the existing scraper structure. There is no additional drainage port 6 on the outer surface of the cylinder body 4. When the dropper 7 is pulled out, when viscous cosmetics are brought up to the outer surface of the cylinder body 4, the cylinder body 4 can block the cosmetics and prevent the cosmetics outside the cylinder body 4 from adhering to the dropper 7, ensuring the cleanliness of the dropper 7.

[0031] As an implementation manner, the scraper 5 is arranged in two layers.

[0032] Through the above setting, the number of layers of the scraper 5 is reduced, the structure of the scraper structure is simplified, and production is facilitated.

[0033] As an implementation manner, 4 scrapers 5 are arranged on each layer of the scraper 5.

[0034] Each layer of the scraper 5 in the present application can also be provided with 2, 3, or 5, or other numbers, which can be designed according to requirements.

[0035] As an implementation manner, the central angle corresponding to the arc surface 8 of the lower-layer scraper 5 is a, and the central angle corresponding to the arc surface 8 of the upper-layer scraper 5 is b, and a + b ≥ 90°.

[0036] Through the above setting, the scraping effect of the scraper structure is further improved.

[0037] The central angle a of the arc surface 8 inside the lower-layer scraper 5 of the scraper structure in the present application can be equal to the central angle b of the arc surface 8 inside the upper-layer scraper 5, or can be unequal. In the present application, a < b, a + b = 90°. The shape of the lower-layer scraper 5 is equal to the shape of the upper-layer drainage port 6, that is, the lower-layer scraper 5 and the upper-layer scraper 5 can just form an annular shape to ensure that the cosmetics on the surface of the dropper 7 can be scraped off 360°; further, when a + b > 90°, the area of the lower-layer scraper 5 is larger than the upper-layer drainage port 6. After the lower-layer scraper 5 scrapes off a part of the cosmetics, it can ensure that the other part of the cosmetics is scraped off by the upper-layer scraper 5, preventing the cosmetics from going out through the upper-layer drainage port 6.

[0038] As an implementation manner, a tapered surface 9 with a large upper part and a small lower part is provided on the inner circumference at the upper end of the cylinder body 4.

[0039] Through the above setting, it is convenient for the dropper 7 to be inserted downward into the cylinder body 4, and the sealing performance at the upper end of the cylinder body 4 is also improved.

[0040] Existing droppers 7 typically have a rubber button 11 installed at the top. Compression of the rubber button 11 draws in cosmetics. The lower outer circumference of the rubber button 11 fits into the conical surface 9. When the dropper 7 is inserted into the bottle body 12, the lower end of the rubber button 11 fits against the conical surface 9 to ensure a tight seal between the upper end of the cylinder 4 and the rubber button 11. Figure 1 .

[0041] As one implementation method, the outer periphery of the bottle stopper 3 is provided with raised ribs 10.

[0042] The above settings improve the seal between the stopper 3 and the bottle opening.

[0043] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A drip irrigation scraper structure, characterized in that, The device includes a stopper, a cylinder, and scrapers. The stopper is fixedly connected to the outer side of the upper end of the cylinder. Multiple scrapers are arranged vertically on the inner side of the lower end of the cylinder. Each layer of scrapers consists of at least two scrapers arranged around the inner periphery of the cylinder. A drain port is formed between two adjacent scrapers. The inner side of the scraper is provided with an arc surface that can conform to the outer surface of the dropper. The projection of the arc surfaces of the multiple scrapers on the horizontal plane forms a circle.

2. The drip tube scraper structure according to claim 1, characterized in that, The scraper is configured with two layers.

3. The drip tube scraper structure according to claim 1, characterized in that, Each layer is equipped with four scrapers.

4. The drip tube scraper structure according to claim 3, characterized in that, The central angle corresponding to the arc surface of the lower scraper is a, and the central angle corresponding to the arc surface of the upper scraper is b, where a+b>=90°.

5. The drip tube scraper structure according to claim 1, characterized in that, The inner circumference of the upper end of the cylinder is provided with a conical surface that is larger at the top and smaller at the bottom.

6. The drip tube scraper structure according to claim 1, characterized in that, The bottle stopper is provided with raised ribs on its outer periphery.