Self-priming residue-free dropper bottle

Abstract

A self-priming residue-free dropper bottle, belonging to the field of cosmetics. The dropper bottle comprises: a threaded cap, connected to an opening of a bottle body; a soft rubber head, engaged on the threaded cap, the lower portion of the soft rubber head being located in the threaded cap and being also located in the opening of the bottle body, and the lower portion of the soft rubber head being provided with an elastic connection portion; and a dropper portion, extending into the bottle body, wherein in a closed state, the bottom of the dropper portion is in contact with the bottle body, and the elastic connection portion is in a compressed state. Compared with traditional dropper bottle packaging materials, the present product is additionally provided with a self-priming device, and, by means of automatic rebound of the elastic connection portion, the dropper bottle automatically draws a material during use such that a consumer can use same directly after opening the dropper bottle, without the need for manually drawing materials. The whole self-priming device can be realized just by means of one soft rubber head, and the rebound stroke of the soft rubber head can be adjusted on the basis of different materials, so as to control the single dosage. The present invention has a simple structure and a novel design, and can be applied to various materials.

Description

Self-priming, residue-free dropper bottle Technical Field

[0001] This invention relates to the field of cosmetics, and more particularly to a self-priming, residue-free dropper bottle. Background Technology

[0002] Cosmetics are widely used in daily life. Besides common powder cosmetics, there is also a category of liquid cosmetics. These liquid cosmetics are often atomized and sprayed using a pump, or drawn out directly using a dropper.

[0003] For example, for more expensive liquids such as essential oils or serums, using a dropper allows users to easily control the dosage and avoid waste. Therefore, the invention in this application focuses on improving the existing dropper structure. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a self-priming, residue-free dropper bottle.

[0005] The technical solution of this invention is: a self-priming, residue-free dropper bottle, comprising: a bottle body and a modular dropper cap, wherein the modular dropper cap is detachably disposed on the top of the bottle body, and the modular dropper cap comprises:

[0006] The cap is detachably connected to the opening of the bottle body, and a connection port is provided at the upper end of the cap.

[0007] A flexible rubber tip, wherein the middle part of the flexible rubber tip is engaged with the connector, the upper part of the flexible rubber tip protrudes from the cap, and the lower part of the flexible rubber tip is located inside the cap and simultaneously inside the opening of the bottle body; the lower part of the flexible rubber tip is provided with an elastic connecting part; and

[0008] The dropper section has its upper part connected to the elastic connecting part, and its lower end extends into the bottle body. When closed, the lower end of the dropper section contacts the bottom of the bottle body, and the elastic connecting part is in a compressed state.

[0009] Furthermore, it also includes an inner stopper, the outer wall of which is connected to the inner side of the bottle opening. An inwardly facing inner boss is provided on the inner wall of the inner stopper. The inner boss is annular and tapers inward from top to bottom, contacting the outer wall of the dropper section. Generally, it is an interference fit, which allows for scraping the material from the outer wall of the dropper section, preventing material waste.

[0010] Furthermore, the outer wall of the inner plug and the inner side of the bottle opening are connected by a snap-fit ​​mechanism. The combination of the protrusion and the groove ensures a more stable connection.

[0011] Furthermore, a positioning protrusion is provided on the upper part of the inner stopper, and the positioning protrusion is positioned to contact the upper end surface of the bottle. This ensures the effectiveness of replacing the inner stopper; when the inner stopper is damaged, it can be replaced through the positioning protrusion.

[0012] Furthermore, the elastic connecting part is made of a soft, elastic material, such as rubber or silicone. By choosing the material, automatic rebound can be achieved. It can also be designed with a corrugated shape for better rebound, or even have a spring added to assist in the rebound. In this product, corrugated rubber is recommended due to its simple and reliable structure.

[0013] Furthermore, the connection between the cap and the outer side of the bottle opening can be achieved through any of the following methods: threaded connection, magnetic connection, or snap-fit ​​connection. Threaded connection is a commonly used method and is the recommended method in this structure.

[0014] Furthermore, a shoulder sleeve is provided on the outer side of the tooth cover, and a button is coaxially mounted on the upper center of the shoulder sleeve. The button is in contact with the upper part of the soft rubber head. Generally, the shoulder sleeve is set by snap-fit, and the button is coaxially movable with the shoulder sleeve. When the button is pressed, the soft rubber head deforms, realizing the discharge of material.

[0015] Furthermore, a pressing block is also provided inside the button. The contact between the pressing block and the soft rubber head can improve the pressing effect of the button.

[0016] Furthermore, the outer wall of the dropper section is engaged with the elastic connecting part.

[0017] Furthermore, the outer wall of the dropper section is provided with a first protrusion, which abuts against the lower end of the elastic connecting part. The first protrusion ensures that the elastic connecting part can be compressed synchronously during compression, thus guaranteeing the compression effect.

[0018] Furthermore, a first latch and a second latch are provided on the outer side of the middle portion of the soft rubber head, with the first latch and the second latch located on the upper and lower sides of the upper end face of the tooth cap, respectively. The engagement of the first latch and the second latch ensures a stable connection of the soft rubber head.

[0019] Furthermore, the first latch is positioned above the second latch, and the outer side of the first latch is inclined. The inclined surface ensures a smooth connection between the second latch and the tooth cover.

[0020] Furthermore, the second latch extends outward and contacts the upper end of the bottle opening, ensuring stable installation of the soft rubber head.

[0021] Furthermore, a flow guiding channel is provided on the lower end face of the dropper section, the flow guiding channel being composed of flow guiding protrusions or flow guiding grooves. The flow guiding channel ensures that the material is smoothly drawn into the dropper.

[0022] The beneficial technical effects of this invention are as follows: Compared with traditional dropper bottle packaging materials, this product adds a self-priming device. Through the automatic rebound of the elastic connection, the dropper automatically draws up the liquid during use, allowing for immediate use without manual dispensing. The entire self-priming structure requires only a single piece of soft rubber, and the rebound stroke can be adjusted according to different materials to control the amount dispensed per use. The structure is simple, the design is novel, and it is suitable for various materials. Because a safety gap must be left between the dropper and the bottle bottom, most dropper bottles on the market currently have the problem of significant residue. This product's added self-priming device is made of soft material, eliminating the need for a gap between the dropper and the bottle bottom, resulting in no residue, reduced waste, and greater environmental friendliness. Attached Figure Description

[0023] Figure 1 is a three-dimensional schematic diagram of a dropper bottle with a shoulder cover.

[0024] Figure 2 is a schematic diagram of the tooth cap.

[0025] Figure 3 is a schematic diagram of the combination of the soft rubber head and the elastic connector.

[0026] Figure 4 is a schematic diagram of the dropper section.

[0027] Figure 5 is a schematic diagram of a combined dropper.

[0028] Figure 6 is a schematic diagram of the combination of the inner stopper and the bottle body.

[0029] Figure 7 is a schematic diagram of material suction.

[0030] Figure 8 is a schematic diagram of a dropper bottle without a shoulder cover and a button.

[0031] Figure 9 is a schematic diagram of the flow channel formed by the flow-guiding protrusions.

[0032] Figure 10 is a schematic diagram of the flow channel formed by the flow guide groove.

[0033] The components are as follows: 1. Bottle body, 2. Tooth cap, 21. Connecting port, 3. Soft rubber head, 31. First buckle, 32. Second buckle, 4. Elastic connecting part, 5. Inner plug, 51. Inner boss, 52. Positioning protrusion, 6. Dropper part, 61. First protrusion, 7. Shoulder sleeve, 8. Button. Detailed Implementation

[0034] In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] Referring to Figures 1-10, the self-priming, residue-free dropper bottle includes: a bottle body 1 and a modular dropper cap. The modular dropper cap is detachably mounted on top of the bottle body 1, and includes:

[0036] The cap 2 is detachably connected to the opening of the bottle body 1, and the upper end of the cap 2 is provided with a connection port 21.

[0037] A flexible rubber head 3 is fitted into the connector 21 at its center. The upper part of the flexible rubber head 3 protrudes from the toothed cap 2, while the lower part of the flexible rubber head 3 is located inside the toothed cap 2 and simultaneously within the opening of the bottle body 1. An elastic connecting part 4 is provided at the lower part of the flexible rubber head 3.

[0038] The dropper section 6 has its upper part connected to the elastic connecting part 4. The lower end of the dropper section 6 extends into the bottle body 1. When closed, the lower end of the dropper section 6 contacts the bottom of the bottle body 1, and the elastic connecting part 4 is in a compressed state.

[0039] Furthermore, it also includes an inner stopper 5, the outer wall of which is connected to the inner side of the opening of the bottle body 1. An inwardly facing inner boss 51 is provided on the inner wall of the inner stopper 5. The inner boss 51 is arranged in a ring shape and tapers inward from top to bottom, while contacting the outer wall of the dropper part 6. Generally, it is an interference fit, which can achieve a scraping effect on the outer wall of the dropper part 6 and avoid waste of material.

[0040] Furthermore, the outer wall of the inner stopper 5 and the inner side of the opening of the bottle body 1 are connected by a snap-fit ​​mechanism. That is, the cooperation of the protrusion and the groove makes the connection between the two more stable.

[0041] Furthermore, a positioning protrusion 52 is provided on the upper part of the inner stopper 5, and the positioning protrusion 52 is set to contact the upper end surface of the bottle body 1. This ensures the effectiveness of replacing the inner stopper 5. When the inner stopper 5 is damaged, it can be replaced through the positioning protrusion 52.

[0042] Furthermore, the elastic connecting part 4 is made of rubber or silicone. By choosing the material, automatic rebound can be achieved. It can also be made corrugated for better rebound, or even have a spring added to assist in the rebound. In this product, corrugated rubber is recommended due to its simple and reliable structure.

[0043] Furthermore, the connection between the cap 2 and the outer side of the opening of the bottle body 1 can be any one of the following: threaded, magnetic, or snap-fit. Threaded connection is a commonly used method and is the recommended method in this structure.

[0044] Furthermore, a shoulder sleeve 7 is provided on the outer side of the tooth cover 2, and a button 8 is coaxially arranged at the upper middle part of the shoulder sleeve 7. The button 8 is in contact with the upper part of the soft rubber head 3. Generally, the shoulder sleeve 7 is set by snap-fit, and the button 8 is coaxially movable with the shoulder sleeve 7. When the button 8 is pressed, the soft rubber head 3 deforms, realizing the discharge of the material.

[0045] Furthermore, a pressing block is also provided inside button 8. The pressing block's contact with the soft rubber head 3 improves the pressing effect of button 8.

[0046] Furthermore, the outer wall of the dropper section 6 is engaged with the elastic connecting section 4.

[0047] Furthermore, the outer wall of the dropper section 6 is provided with a first protrusion 61, which abuts against the lower end of the elastic connecting section 4. The provision of the first protrusion 61 ensures that the elastic connecting section 4 can be compressed synchronously during compression, thus ensuring the compression effect.

[0048] Furthermore, a first latch 31 and a second latch 32 are provided on the outer side of the middle part of the soft rubber head 3. The first latch 31 and the second latch 32 are located on the upper and lower sides of the upper end face of the tooth cover 2, respectively. Through the cooperation of the first latch 31 and the second latch 32, a stable connection of the soft rubber head 3 is achieved.

[0049] Furthermore, the first latch 31 is located above the second latch 32, and the outer side of the first latch 31 is inclined. The inclined surface ensures smooth connection between the second latch 32 and the tooth cover 2.

[0050] Furthermore, the second latch 32 extends outward and contacts the upper end of the opening of the bottle body 1, ensuring the stable installation of the soft rubber head 3.

[0051] Furthermore, a flow guiding channel is provided on the lower end face of the dropper section, the flow guiding channel being composed of a flow guiding protrusion or a flow guiding groove. The flow guiding channel ensures that the material is smoothly drawn into the dropper. When a flow guiding protrusion is provided, see Figure 9; when a flow guiding groove is provided, it is generally arranged radially to ensure that the material flows from the outside into the dropper section, and at least one flow guiding groove is provided, as shown in Figure 10.

[0052] Compared to traditional dropper bottle packaging, this product features a self-priming device. Through the automatic rebound of the elastic connector 4, the dropper automatically draws up the liquid, making it ready to use immediately without manual intervention. The entire self-priming structure requires only a single piece of soft rubber, whose rebound stroke can be adjusted to control the amount dispensed per use depending on the liquid. Its simple structure and innovative design make it suitable for various liquids. Because a safety gap must be maintained between the dropper and the bottle bottom, most dropper bottles on the market currently suffer from significant residue. This product's self-priming device, made of soft material, eliminates the need for this gap, resulting in zero residue, reduced waste, and greater environmental friendliness.

[0053] Basic assembly steps:

[0054] The soft rubber head and the elastic connecting part are integrated (usually injection molded as one piece);

[0055] First, insert the soft rubber head into the tooth cover from bottom to top, and then engage the first and second clips.

[0056] The dropper is assembled from bottom to top, and after snapping, the first protrusion abuts against the lower end of the elastic connecting part;

[0057] Assemble the button into the shoulder sleeve from bottom to top; assemble the tooth cap assembly into the shoulder sleeve from bottom to top, while the top of the soft rubber head is press-fitted to the inside of the button to complete the assembly of the entire dropper head (this step is omitted if there is no shoulder sleeve and button).

[0058] Assemble the inner stopper (made of plastic) into the bottle body from top to bottom. The inner protrusion of the inner stopper engages with the side wall of the dropper, and the positioning protrusion abuts against the bottle mouth to complete the assembly.

[0059] Finally, screw the cap clockwise into the bottle. At this point, the dropper is inserted into the bottle along the inner stopper. The inner protrusion of the inner stopper abuts against the outer wall of the dropper. When the dropper is pulled out, it scrapes the material off the outer wall. When the dropper is not pulled out, it can stabilize the dropper and prevent it from shaking.

[0060] To use, rotate counterclockwise to remove the cap assembly. As it rises, the elastic connector springs back and automatically picks up the contents. Press the button or squeeze the top of the soft rubber head to use. After use, screw it in clockwise.

[0061] The bottom of the dropper section contacts the bottom of the bottle and compresses the elastic connector. Different dropper lengths can be selected depending on the material being dispensed, allowing for varying degrees of compression of the elastic connector. This enables adjustment of the elastic connector's rebound stroke based on different materials, controlling the amount dispensed per use and reducing material waste. Throughout the process, the inner stopper scrapes away excess material from the outer wall of the dropper section, which is also crucial in preventing material waste.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A self-priming, residue-free dropper bottle characterized in that, include: A bottle body (1) and a combined dropper cap, wherein the combined dropper cap is detachably mounted on top of the bottle body (1), and the combined dropper cap includes: The tooth cap (2) is detachably connected to the opening of the bottle body (1), and the upper end of the tooth cap (2) is provided with a connection port (21); A soft rubber head (3) is provided, with its middle portion secured to the connector (21). The upper portion of the soft rubber head (3) protrudes from the tooth cap (2), and the lower portion of the soft rubber head (3) is located inside the tooth cap (2) and simultaneously within the opening of the bottle body (1). An elastic connecting portion (4) is provided at the lower portion of the soft rubber head (3). The upper part of the dropper (6) is connected to the elastic connecting part (4), and the lower end of the dropper (6) extends into the bottle body (1). When closed, the lower end of the dropper (6) contacts the bottom of the bottle body (1), and the elastic connecting part (4) is in a compressed state.

2. The self-filling, residue-free dropper bottle of claim 1, wherein, The elastic connecting part (4) is made of soft elastic material.

3. The self-filling, residue-free dropper bottle of claim 1, wherein, The connection between the tooth cap (2) and the outer side of the opening of the bottle body (1) can be any of the following: threaded, magnetic, or snap-fit ​​connection.

4. The self-filling, residue-free dropper bottle of claim 1, wherein, A shoulder cover (7) is also provided on the outside of the tooth cover (2). A button (8) is coaxially provided at the middle of the upper end of the shoulder cover (7). The button (8) is in contact with the upper part of the soft rubber head (3).

5. The self-filling, residue-free dropper bottle of claim 1, wherein, The outer wall of the dropper part (6) is engaged with the elastic connecting part (4).

6. The self-filling, residue-free dropper bottle of claim 1, wherein, The outer wall of the dropper part (6) is also provided with a first protrusion (61), which abuts against the lower end of the elastic connecting part (4).

7. The self-filling, residue-free dropper bottle of claim 1, wherein, The soft rubber head (3) has a first buckle (31) and a second buckle (32) on its outer side at the middle, and the first buckle (31) and the second buckle (32) are located on the upper and lower sides of the upper end face of the tooth cap (2), respectively; and / or The first buckle (31) is located above the second buckle (32), and the outer side of the first buckle (31) is inclined; and / or The second buckle (32) extends outward and contacts the upper end of the opening of the bottle body (1).

8. The self-filling, residue-free dropper bottle of claim 1, wherein, It also includes an inner plug (5), the outer wall of which is connected to the inner side of the opening of the bottle body (1). An inwardly facing inner boss (51) is provided on the inner wall of the inner plug (5). The inner boss (51) is arranged in a ring shape and shrinks inward from top to bottom, while contacting the outer wall of the dropper part (6).

9. The self-filling, residue-free dropper bottle of claim 8, wherein, The outer wall of the inner plug (5) and the inner side of the opening of the bottle body (1) are connected by a snap fastener; and / or The upper part of the inner plug (5) is also provided with a positioning protrusion (52), which is in contact with the upper end surface of the bottle body (1).

10. The self-filling, residue-free dropper bottle of claim 1, wherein, A flow guiding channel is provided on the lower end face of the dropper section (6), and the flow guiding channel is composed of a flow guiding protrusion or a flow guiding groove.

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