A double chamber dropper bottle

Abstract

The application discloses a double-cavity dropper bottle, which comprises a bottle shell, an elastic member and a piston bottle, the bottle shell is provided with a cavity and a through port at the bottom communicating with the cavity, the piston bottle is slidably arranged in the cavity, the piston bottle divides the cavity to form a first cavity above the piston bottle, the top of the bottle shell is provided with a discharge port communicating with the first cavity, the piston bottle is provided with a second cavity, the bottle shell is provided with a piercing part above the first cavity, and the elastic member is arranged in the cavity and abuts against the piston bottle to drive the piston bottle to reset downwards, wherein the piston bottle can be pushed upwards through the through port, the piercing part pierces a sealing part of the piston bottle to make the first cavity and the second cavity communicate to form a third cavity. Through the above structure, the user only needs to press to complete the mixing, and does not need to use external tools such as a syringe or a dropper for liquid transfer, so that the operation steps are shortened, and the use difficulty and time cost are reduced.

Description

Technical Field

[0001] This invention relates to the field of container technology, and in particular to a double-chamber dropper bottle. Background Technology

[0002] In the fields of cosmetics, medical devices, and biopharmaceuticals, many active ingredients (such as lyophilized powders, enzyme preparations, and probiotics) are prone to inactivation or degradation when stored in a liquid environment for extended periods. Therefore, it is common practice to separate powder and liquid formulations and mix them immediately before use to ensure product stability and efficacy throughout its shelf life. However, currently commercially available products generally use separate powder and liquid bottles as two-component packaging. Users must perform the following steps sequentially: first, open the sealed cap or aluminum-plastic cap of the powder bottle; then, use a syringe, dropper, or measuring cup to measure out the liquid and inject it into the powder bottle; finally, shake or stir to mix the powder and liquid before use. However, this series of steps is lengthy, time-consuming, and laborious. Moreover, the opening and transfer process can easily introduce airborne microorganisms, skin flakes, or particulate matter, causing product contamination and affecting safety during use. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a dual-chamber dropper bottle.

[0004] According to an embodiment of the present invention, a dual-chamber dropper bottle includes a bottle shell, an elastic member, and a piston member. The bottle shell has a chamber and a port at the bottom communicating with the chamber. The piston member is slidably disposed in the chamber and divides the chamber to form a first chamber located above it. The top of the bottle shell has a discharge port communicating with the first chamber. The piston member has a second chamber. The bottle shell has a piercing portion located in the first chamber. The elastic member is disposed in the chamber and abuts against the piston member to drive it downward and reset. The piston member can be pushed upward through the port, causing the piercing portion to pierce the sealing portion of the piston member, thereby connecting the first chamber and the second chamber to form a third chamber. After the third chamber is formed, the reset piston member can be pushed upward through the port, causing the material in the third chamber to be squeezed out through the discharge port.

[0005] A dual-chamber dropper bottle according to an embodiment of the present invention has at least the following beneficial effects: With the above structure, on the one hand, liquid and powder can be pre-filled in the first and second chambers respectively (or powder and liquid can be pre-filled in the first and second chambers respectively), and the continuous action of pushing and piercing the mixture and pushing and extruding again can be realized by using a single port. Users only need to press to complete the mixing and dispensing, without the need for external tools such as syringes or droppers to transfer liquid, which significantly shortens the operation steps and reduces the difficulty and time cost of use. On the other hand, the entire mixing process is completed in the closed chamber inside the bottle shell, avoiding intermediate transfer links such as opening the cap, pouring or sucking, thereby effectively isolating microorganisms, skin flakes and particulate matter in the air from entering and causing contamination. This is especially suitable for cosmetics, medical devices and biopharmaceutical scenarios with high sterility requirements. Furthermore, after the elastic element pierces the mixture, it drives the piston bottle to move down and reset, which can provide a certain stroke basis for the next second push extrusion.

[0006] According to some embodiments of the present invention, the bottle shell is provided with a guide hole, the piston bottle is provided with a guide block, and the guide block is slidably disposed in the guide hole.

[0007] According to some embodiments of the present invention, the guide hole includes a first hole segment and a second hole segment that are connected. The first hole segment is inclined and the second hole segment is vertical. When the piston bottle is pushed upward through the through-hole to pierce the sealing part and form the third cavity, the guide block in the first hole segment can move upward to the second hole segment. The elastic member can drive the piston bottle to move downward so that the guide block abuts against the bottom hole wall of the second hole segment to complete the piston bottle reset. The reset piston bottle can be pushed upward along the second hole segment through the through-hole to squeeze the material in the third cavity out through the discharge port.

[0008] According to some embodiments of the present invention, the piston bottle assembly includes a piston assembly, a container bottle, and a pressing member connected sequentially from top to bottom. The piston assembly separates the chamber to form a first cavity located above it. The piston assembly is provided with the sealing portion. The container bottle is provided with a second cavity. The pressing member is provided with the guide block. The elastic member abuts against the pressing member to drive the piston bottle assembly to move downward and reset. The pressing member is used for a user to press and push through the opening.

[0009] According to some embodiments of the present invention, the piston component has a slot on its bottom side, the bottom of the slot has a hollow insert portion, the sealing portion seals the top opening of the insert portion, the neck of the container is inserted into the slot, and the insert portion is inserted into the neck of the container.

[0010] According to some embodiments of the present invention, the side wall of the chamber is provided with an abutment platform located below the piston member, and the elastic member is sleeved on the outside of the container and its upper and lower ends abut against the abutment platform and the pressing member, respectively.

[0011] According to some embodiments of the present invention, the inner cavity sidewall of the pressing member is provided with a plurality of L-shaped ribs, the pressing member is sleeved on the bottom of the container, and the side and bottom of the container abut against the ribs.

[0012] According to some embodiments of the present invention, the bottle shell includes a bottle body and a bottom support that are connected and arranged vertically. The inner cavity of the bottle body and the inner cavity of the bottom support communicate to form the chamber. The bottle body is provided with the discharge port and the piercing portion, and the bottom support is provided with the through port and the guide hole.

[0013] According to some embodiments of the present invention, a bottle cap is also included, which is detachably fitted onto the bottle shell to cover the discharge port.

[0014] According to some embodiments of the present invention, the bottle cap is provided with a plug, which is inserted into the discharge port. Attached Figure Description

[0015] 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: Figure 1 This is a structural diagram of an embodiment of the dual-chamber dropper bottle of the present invention; Figure 2 for Figure 1 A cross-sectional view of the double-chamber dropper bottle shown; Figure 3 for Figure 1 An exploded view of the double-chamber dropper bottle shown; Figure 4 for Figure 1 Another exploded view of the double-chamber dropper bottle shown.

[0016] Figure label: Bottle shell 100, bottle body 110, discharge port 111, piercing part 112, abutment platform 113, bottom support 120, through port 121, guide hole 122, first hole section 122A, second hole section 122B; Elastic element 200; Piston bottle component 300, piston component 310, sealing part 311, slot 312, insert part 313, container bottle 320, second cavity 321, neck part 322, pressing part 330, guide block 331, rib 332; Chamber 400, First Chamber 410; Bottle cap part 500, plug part 510. Detailed Implementation

[0017] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0018] In the description of this invention, the use of terms such as first, second, third, fourth, fifth, etc., is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0019] 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.

[0020] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to direct connection or indirect connection through an intermediate medium; they can refer to fixed connection, detachable connection, or integral molding; they can refer to mechanical connection; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0021] Reference Figures 1 to 4This invention discloses a dual-chamber dropper bottle, comprising a bottle shell 100, an elastic member 200, and a piston bottle member 300. The bottle shell 100 has a chamber 400 and a bottom opening 121 communicating with the chamber 400. The piston bottle member 300 is slidably disposed in the chamber 400 and divides the chamber 400 to form a first chamber 410 located above it. The top of the bottle shell 100 has a discharge port 111 communicating with the first chamber 410. The piston bottle member 300 has a second chamber 321, and the bottle shell 100 has a piercing portion located in the first chamber 410. 112 (the piercing part 112 is a hollow tube structure, and the discharge port 111 is connected to the first cavity 410 through the piercing part 112), the elastic member 200 is provided in the cavity 400 and abuts against the piston bottle 300 so as to drive it to move down and reset. The piston bottle 300 can be pushed up through the through port 121 so that the piercing part 112 pierces the sealing part 311 of the piston bottle 300, so that the first cavity 410 and the second cavity 321 are connected to form a third cavity. After the third cavity is formed, the reset piston bottle 300 can be pushed up through the through port 121 so that the material in the third cavity is squeezed out through the discharge port 111.

[0022] Understandably, after the third chamber is formed and the mixture is fully shaken, the user can tilt the dropper bottle to allow the material in the third chamber to be poured out through the outlet 111.

[0023] Through the above structure, on the one hand, liquid and powder can be pre-loaded into the first chamber 410 and the second chamber 321 respectively (or powder and liquid can be pre-loaded into the first chamber 410 and the second chamber 321 respectively), and the continuous action of pushing and piercing the mixture and pushing and extruding again can be realized by using a single port 121. Users only need to press to complete the mixing and use, without the need for external tools such as syringes or droppers to transfer liquid, which significantly shortens the operation steps and reduces the difficulty and time cost of use. On the other hand, the entire mixing process is completed in the closed chamber inside the bottle shell 100, avoiding intermediate transfer links such as opening the cap, pouring or sucking, thereby effectively isolating microorganisms, skin flakes and particulate matter in the air from entering and causing contamination. This is especially suitable for cosmetics, medical devices and biopharmaceutical scenarios with high sterility requirements. Furthermore, after the elastic element 200 pierces the mixture, it drives the piston bottle 300 to move down and reset, which can provide a certain stroke basis for the next second push extrusion.

[0024] In this embodiment, refer to Figures 2 to 4The bottle shell 100 is provided with a guide hole 122, and the piston bottle 300 is provided with a guide block 331, which is slidably disposed in the guide hole 122. Further, the guide hole 122 includes a first hole section 122A and a second hole section 122B that are connected. The first hole section 122A is inclined, and the second hole section 122B is vertical. When the piston bottle 300 is pushed upward through the through-hole 121, causing the piercing part 112 to pierce the sealing part 311 to form a third cavity, the guide block 331 in the first hole section 122A can move upward to the second hole section 122B. The elastic member 200 can drive the piston bottle 300 downward until the guide block 331 abuts against the bottom hole wall of the second hole section 122B, completing the piston bottle 300 reset. The reset piston bottle 300 can be pushed upward along the second hole section 122B through the through-hole 121, causing the material in the third cavity to be squeezed out through the discharge port 111.

[0025] With the above structure, a guide hole 122 is provided, including an inclined first hole section 122A and a vertical second hole section 122B, which slides in cooperation with a guide block 331 on the piston bottle 300. This segmented guide structure can provide differentiated motion guidance during operation. In particular, when the piston bottle 300 is pushed upward through the through-hole 121 for the first time, the guide block 331 slides along the inclined first hole section 122A. This inclined path forces the guide block 331 to produce lateral displacement, thereby causing the piston bottle 300 to rotate at a certain angle. This rotational movement causes not only axial relative displacement between the piercing part 112 fixed on the bottle shell 100 and the sealing part 311 on the piston bottle 300, but also circumferential shearing action, which is conducive to forming a tearing or ripping effect when piercing the sealing part 311. Compared with simple axial pushing piercing, the above structure is more conducive to achieving the piercing effect. Furthermore, when the elastic element 200 drives the reset, the guide block 331 abuts against the bottom wall of the second hole section 122B, positioning the piston bottle 300 at the starting position of the vertical section. During subsequent pushes, the piston bottle 300 only moves upwards along the vertical second hole section 122B. This vertical guidance helps reduce the possibility of radial displacement or tilting of the piston bottle 300 during extrusion, thus helping to maintain the stability of the extrusion stroke. Simultaneously, the segmented design of the inclined and vertical sections ensures that the piston bottle 300 does not repeatedly pass through the inclined section after the initial puncture, simplifying the displacement path for subsequent operations.

[0026] In this embodiment, refer to Figures 1 to 4 The bottle shell 100 includes a bottle body 110 and a bottom support 120 that are connected and arranged vertically. The inner cavity of the bottle body 110 and the inner cavity of the bottom support 120 are connected to form a chamber 400. The bottle body 110 is provided with the above-mentioned discharge port 111 and the above-mentioned piercing part 112. The bottom support 120 is provided with the above-mentioned through port 121 and the above-mentioned guide hole 122.

[0027] In this embodiment, refer to Figures 2 to 4 The piston bottle assembly 300 includes a piston assembly 310, a container bottle 320, and a pressing member 330 connected sequentially from top to bottom. The piston assembly 310 has a partitioned chamber 400 to form the first chamber 410 located above it. The piston assembly 310 is provided with the sealing part 311 (which may be an aluminum diaphragm, etc.). The container bottle 320 is provided with the second chamber 321. The pressing member 330 is provided with the guide block 331. The elastic member 200 abuts against the pressing member 330 to drive the piston bottle assembly 300 to move down and reset. The pressing member 330 is used for the user to press and push through the port 121.

[0028] With the above structure, if the piston 310 and the container 320 are integrally molded into a single component, this component needs to meet two requirements simultaneously: the upper part (piston 310) needs to have good elastic deformation capacity and sliding sealing precision with the inner wall of the chamber 400 to ensure that the sealing of the first chamber 410 is maintained during the upward movement; the lower part (container 320) needs to have high structural strength and dimensional stability to reliably contain the liquid or powder in the second chamber 321. These two requirements have different or even conflicting process requirements for materials and wall thickness distribution. When integrally molded, it is very easy to cause injection molding shrinkage marks, deformation, or insufficient sealing surface precision due to excessive differences in wall thickness. However, with the separate structure, the piston 310 and the container 320 can each select the most suitable molding process and materials, control the key dimensional accuracy separately, and then be assembled into one piece by connection, which significantly reduces the difficulty of mold design and injection molding and is conducive to improving the yield rate during mass production.

[0029] Piston 310 is connected to container 320. For details, please refer to [reference needed]. Figure 2 The piston 310 has a slot 312 on its bottom side. The bottom of the slot 312 has a hollow insert part 313. The sealing part 311 seals the top opening of the insert part 313. The neck part 322 of the container 320 is inserted into the slot 312, and the insert part 313 is inserted into the neck part 322.

[0030] The container 320 and the pressing element 330 are connected; for details, please refer to [reference needed]. Figure 2 and Figure 3 The inner cavity side wall of the pressing member 330 is provided with multiple L-shaped ribs 332. The pressing member 330 is sleeved on the bottom of the container bottle 320, and the side and bottom of the container bottle 320 abut against the ribs 332.

[0031] The elastic element 200 is disposed in the chamber 400 and abuts against the pressing element 330 to drive the piston bottle 300 to move downward and reset. For details, refer to [link to relevant documentation]. Figure 2 and Figure 4The side wall of the chamber 400 is provided with an abutment platform 113 located below the piston 310. The elastic member 200 is sleeved on the outside of the container 320 and its upper and lower ends abut against the abutment platform 113 and the pressing member 330, respectively. The elastic member 200 is a spring; the abutment platform 113 is provided on the inner side wall of the bottle body 110.

[0032] In some embodiments, the elastic member 200 is disposed in the first cavity 410 and abuts against the piston member 310 so as to drive the piston bottle member 300 to move down and reset.

[0033] In this embodiment, refer to Figure 1 and Figure 2 It also includes a bottle cap 500, which is threaded onto the top of the bottle body 110 to cover the outlet 111. The bottle cap 500 is provided with a plug 510, which is inserted into the outlet 111.

[0034] With the above structure, a cap 500 is threaded onto the top of the bottle body 110 and a plug 510 on the cap 500 is inserted into the outlet 111. This structure can cover and block the outlet 111 when not in use, avoiding the risk of the material drying, forming a skin or oxidizing and deteriorating due to exposure to air when idle.

[0035] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A double-chamber dropper bottle, characterized in that: The device includes a bottle shell (100), an elastic element (200), and a piston bottle (300). The bottle shell (100) has a chamber (400) and a bottom opening (121) communicating with the chamber (400). The piston bottle (300) is slidably disposed in the chamber (400) and separates the chamber (400) to form a first cavity (410) above it. The top of the bottle shell (100) has a discharge port (111) communicating with the first cavity (410). The piston bottle (300) has a second cavity (321). The bottle shell (100) has a piercing portion (112) located in the first cavity (410). The elastic element (200) is disposed in the chamber (400) and abuts against the piston bottle (300) to drive it downward and reset. The piston bottle (300) can be pushed upward through the opening (121), causing the piercing part (112) to pierce the sealing part (311) of the piston bottle (300), so that the first cavity (410) and the second cavity (321) can communicate to form a third cavity. After the third cavity is formed, the piston bottle (300) that has been reset can be pushed upward through the through-hole (121), so that the material in the third cavity is squeezed out through the discharge port (111).

2. The double-chamber dropper bottle according to claim 1, characterized in that: The bottle shell (100) is provided with a guide hole (122), and the piston bottle (300) is provided with a guide block (331), which is slidably disposed in the guide hole (122).

3. A double-chamber dropper bottle according to claim 2, characterized in that: The guide hole (122) includes a first hole segment (122A) and a second hole segment (122B) that are connected. The first hole segment (122A) is inclined, and the second hole segment (122B) is vertical. When the piston bottle (300) is pushed upward by the through-hole (121), causing the piercing part (112) to pierce the sealing part (311) to form the third cavity, the guide block (331) in the first hole section (122A) can move upward to the second hole section (122B), and the elastic member (200) can drive the piston bottle (300) downward to make the guide block (331) abut against the bottom hole wall of the second hole section (122B) to complete the reset of the piston bottle (300). The piston bottle (300) that has been reset can be pushed upward along the second hole section (122B) through the through-hole (121), so that the material in the third chamber is squeezed out through the discharge port (111).

4. A double-chamber dropper bottle according to claim 2, characterized in that: The piston bottle assembly (300) includes a piston assembly (310), a container bottle (320), and a pressing member (330) connected sequentially from top to bottom. The piston assembly (310) divides the chamber (400) to form a first cavity (410) located above it. The piston assembly (310) is provided with the sealing part (311). The container bottle (320) is provided with the second cavity (321). The pressing member (330) is provided with the guide block (331). The elastic member (200) abuts against the pressing member (330) to drive the piston bottle assembly (300) to move down and reset. The pressing member (330) is used for the user to press and push through the opening (121).

5. A double-chamber dropper bottle according to claim 4, characterized in that: The piston (310) has a slot (312) on its bottom side. The bottom of the slot (312) has a hollow insert (313). The sealing part (311) seals the top opening of the insert (313). The neck of the container (320) (322) is inserted into the slot (312), and the insert (313) is inserted into the neck (322).

6. A double-chamber dropper bottle according to claim 4, characterized in that: The side wall of the chamber (400) is provided with an abutment platform (113) located below the piston (310). The elastic member (200) is sleeved on the outside of the container (320) and its upper and lower ends abut against the abutment platform (113) and the pressing member (330) respectively.

7. A double-chamber dropper bottle according to claim 4, characterized in that: The inner cavity sidewall of the pressing member (330) is provided with a plurality of L-shaped ribs (332). The pressing member (330) is sleeved on the bottom of the container (320). The side and bottom of the container (320) abut against the ribs (332).

8. A double-chamber dropper bottle according to claim 2, characterized in that: The bottle shell component (100) includes a bottle body component (110) and a bottom support component (120) that are connected and arranged vertically. The inner cavity of the bottle body component (110) and the inner cavity of the bottom support component (120) are connected to form the chamber (400). The bottle body component (110) is provided with the discharge port (111) and the piercing part (112). The bottom support component (120) is provided with the through port (121) and the guide hole (122).

9. A double-chamber dropper bottle according to claim 1, characterized in that: It also includes a bottle cap (500) which is detachably fitted onto the bottle shell (100) to cover the outlet (111).

10. A double-chamber dropper bottle according to claim 9, characterized in that: The bottle cap (500) is provided with a plug (510), which is inserted into the discharge port (111).

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