Self-suction residue-free dropper bottle

The design of the self-priming, residue-free dropper bottle solves the problem of residue during dropper bottle use, realizes automatic material extraction, reduces waste, and improves environmental friendliness.

CN223865435UActive Publication Date: 2026-02-03SUZHOU GERPMAN IND CO LTD
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Patent Information

Application Number
CN202520617260.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2025-01-23
Filing Date
2025-04-03
Publication Date
2026-02-03
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing dropper bottles are prone to leaving residue when using liquid cosmetics, leading to waste and environmental problems.

Method used

A self-priming, residue-free dropper bottle was designed, comprising a bottle body, a combined dropper cap, a toothed cap, a soft rubber head, an elastic connector, and an inner stopper. The automatic retraction of the elastic connector enables automatic material intake, eliminating the need for manual material handling, and no gap is required between the dropper and the bottom of the bottle.

Benefits of technology

It achieves zero residue when using droppers, reduces material waste, has a simple structure, is suitable for various materials, and is more environmentally friendly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-suction type residue-free dropper bottle, and belongs to the field of cosmetics. The dropper bottle comprises a tooth cover connected with an opening of a bottle body, a soft rubber head is clamped on the tooth cover, the lower portion of the soft rubber head is located in the tooth cover and located in the opening of the bottle body at the same time, and an elastic connecting part is arranged on the lower portion of the soft rubber head. The dropper part extends into the bottle body, the bottom of the dropper part is in contact with the bottle body in a closed state, and the elastic connecting part is in a compressed state. Compared with a traditional dropper bottle packing material, the self-suction device is additionally arranged, through automatic rebounding of the elastic connecting part, a consumer can automatically suck a material body through the dropper when using the dropper, the dropper can be used after being opened, and manual material taking is not needed. The whole self-suction structure can be achieved only through one piece of soft rubber, the rebounding stroke of the soft rubber can be adjusted according to different materials, and the single-time use amount is controlled. The device is simple in structure, novel in design and suitable for various materials.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cosmetics, especially to a self-suction type residual-free dropper bottle. BACKGROUND

[0002] In daily life, the use of cosmetics is extremely extensive. In addition to common powder cosmetics, there is also a kind of liquid cosmetics. This liquid cosmetic is often atomized and sprayed by a liquid pump, or is directly sucked out and used by a dropper.

[0003] For example, the liquid of expensive essential oils or essences can be conveniently controlled by a user in use, and waste is avoided. Therefore, the application point of the present application is to improve the structure of the existing dropper. SUMMARY

[0004] To solve the above technical problems, the utility model provides a self-suction type residual-free dropper bottle.

[0005] The technical scheme of the utility model is: a self-suction type residual-free dropper bottle, comprising: a bottle body and a combined dropper bottle cap, the combined dropper bottle cap is detachably arranged above the bottle body, and the combined dropper bottle cap comprises:

[0006] A tooth cap, which is detachably connected with the opening of the bottle body, and the upper end of the tooth cap is provided with a connecting port;

[0007] A soft rubber head, which is clamped in the connecting port in the middle, the upper part of the soft rubber head is exposed outside the tooth cap, the lower part of the soft rubber head is located inside the tooth cap and simultaneously located inside the opening of the bottle body, and the lower part of the soft rubber head is provided with an elastic connecting part; and

[0008] A dropper part, which is connected with the elastic connecting part in the upper part, and the lower end of the dropper part is inserted into the inside of the bottle body, in the closed state, the lower end of the dropper part is in contact with the bottom of the bottle body, and the elastic connecting part is in a compressed state.

[0009] Further, an inner plug is further included, the outer side wall of the inner plug is connected with the inner side of the opening of the bottle body, an inward inner boss is arranged on the inner side wall of the inner plug, the inner boss is arranged in an annular shape and is inwardly contracted from top to bottom, and is in contact with the outer wall of the dropper part. Generally, the contact is arranged in an interference manner, so that the scraping effect on the outer wall of the dropper part can be achieved, and the waste of the material body can be avoided.

[0010] Further, the outer side wall of the inner plug and the inner side of the opening of the bottle body are connected through a buckle. That is, the cooperation of the protrusions and the grooves can make the connection of the two more stable.

[0011] Further, the upper part of the inner plug is provided with a positioning protrusion, which is in contact with the upper end surface of the bottle body. The replacement effect of the inner plug can be ensured, and when the inner plug is damaged, the replacement is realized through the positioning protrusion.

[0012] Further, the elastic connecting part is made of soft elastic material, such as rubber or silicone material. Through the selection of the material, automatic rebound can be realized, and at the same time, it can also be set to be corrugated to better realize the rebound, or even a spring can be sleeved to assist the rebound. In the product, it is recommended to use corrugated rubber material, which is simple and reliable in structure.

[0013] Further, the connection mode of the tooth cover and the opening outside of the bottle body is any one of thread, magnetic attraction or buckle. Thread connection is a commonly used mode, and is also the recommended mode in the structure.

[0014] Further, a shoulder sleeve is arranged on the outside of the tooth cover, a button is coaxially arranged at the upper end of the shoulder sleeve, and the button is in contact with the upper part of the soft rubber head. Generally, the shoulder sleeve is arranged through clamping, the button is coaxially arranged with the shoulder sleeve, when the button is pressed, the soft rubber head is deformed, and the material body is discharged.

[0015] Further, a pressing block is arranged in the button. Through the contact between the pressing block and the soft rubber head, the pressing effect of the button can be improved.

[0016] Further, the outer wall of the dropper part is clamped with the elastic connecting part.

[0017] Further, the outer wall of the dropper part is provided with a first protrusion, and the first protrusion abuts against the lower end of the elastic connecting part. The arrangement of the first protrusion can ensure that the elastic connecting part is compressed synchronously when it is compressed, thereby ensuring the compression effect.

[0018] Further, a first buckle and a second buckle are arranged on the outside of the middle part of the soft rubber head, and the first buckle and the second buckle are respectively arranged on the upper and lower sides of the upper end surface of the tooth cover. Through the cooperation of the first buckle and the second buckle, the stable connection of the soft rubber head is realized.

[0019] Further, the first buckle is located above the second buckle, and the outer side of the first buckle is inclined. The inclined surface can ensure the smooth connection of the second buckle and the tooth cover.

[0020] Further, the second buckle extends outward and is in contact with the upper end of the opening of the bottle body, thereby ensuring the stable installation of the soft rubber head.

[0021] Further, a flow guide channel is arranged on the lower end surface of the dropper part, and the flow guide channel is composed of a flow guide protrusion or a flow guide groove. Through the arrangement of the flow guide channel, the material body can be smoothly sucked into the dropper.

[0022] The beneficial technical effect of the utility model is: compared with the traditional dropper bottle packaging material, the product increases a self-suction device, through the automatic rebound of the elastic connecting part, the consumer automatically sucks the material body when using the dropper, and the dropper can be used by opening, without manually taking the material. The whole self-suction structure can be realized only by a soft glue, the soft glue rebound stroke can be adjusted according to different materials, and the single-time dosage is controlled. The structure is simple, novel in design, and applicable to various materials. Because a safety gap is reserved between the dropper and the bottle bottom, most of the dropper bottles on the market have the problem of large residual amount. The self-suction device added in the product is soft, the dropper does not need to leave a gap with the bottle bottom, there is no residual amount in use, waste is reduced, and it is more environmentally friendly. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic view of the dropper bottle with a shoulder sleeve.

[0024] Figure 2 It is a schematic view of the tooth cover.

[0025] Figure 3 It is a combined schematic view of the soft glue head and the elastic connecting part.

[0026] Figure 4 It is a schematic view of the dropper part.

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

[0028] Figure 6 It is a combined schematic view of the inner plug and the bottle body.

[0029] Figure 7 It is a suction schematic view.

[0030] Figure 8 It is a schematic view of the dropper bottle without a shoulder sleeve and a button.

[0031] Figure 9 It is a schematic view of the flow guide channel formed by the flow guide protrusions.

[0032] Figure 10 It is a schematic view of the flow guide channel formed by the flow guide grooves.

[0033] Among them:

[0034] 1, bottle body,

[0035] 2, tooth cover, 21, connecting port,

[0036] 3, soft glue head, 31, first buckle, 32, second buckle,

[0037] 4, elastic connecting part,

[0038] 5, inner plug, 51, inner boss, 52, positioning protrusion,

[0039] 6. Dropper section, 61. First protrusion,

[0040] 7. Shoulder sleeves

[0041] 8. Buttons. Detailed Implementation

[0042] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0043] See appendix Figures 1-10 The self-priming, residue-free dropper bottle shown 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 the modular dropper cap includes:

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] Further, the elastic connecting part 4 is made of rubber or silica gel. Through the selection of material, automatic rebound can be realized, and at the same time, it can be set to be corrugated to better realize the rebound, or even a spring can be sleeved to assist the rebound. In the product, it is recommended to use corrugated rubber material, which is simple and reliable in structure.

[0051] Further, the connection mode of the tooth cover 2 and the opening outside of the bottle body 1 is any one of thread, magnetic attraction or buckle connection. Thread connection is a commonly used mode, and is also the recommended mode in the structure.

[0052] Further, a shoulder sleeve 7 is further arranged on the outside of the tooth cover 2, the upper end of the shoulder sleeve 7 is coaxially arranged with a button 8, and the button 8 is in contact with the upper part of the soft rubber head 3. Generally, the shoulder sleeve 7 is arranged by clamping, and the button 8 is coaxially arranged with the shoulder sleeve 7. When the button 8 is pressed, the soft rubber head 3 is deformed, and the material body is discharged.

[0053] Further, a pressing block is further arranged in the button 8. Through the contact of the pressing block and the soft rubber head 3, the pressing effect of the button 8 can be improved.

[0054] Further, the outer wall of the dropper part 6 is clamped with the elastic connecting part 4.

[0055] Further, the outer wall of the dropper part 6 is further provided with a first protrusion 61, and the first protrusion 61 abuts against the lower end of the elastic connecting part 4. The arrangement of the first protrusion 61 can ensure that the elastic connecting part 4 is compressed synchronously when it is compressed, thereby ensuring the compression effect.

[0056] Further, a first buckle 31 and a second buckle 32 are arranged on the outside of the middle part of the soft rubber head 3, and the first buckle 31 and the second buckle 32 are respectively arranged on the upper and lower sides of the upper end surface of the tooth cover 2. Through the cooperation of the first buckle 31 and the second buckle 32, the stable connection of the soft rubber head 3 is realized.

[0057] Further, the first buckle 31 is located above the second buckle 32, and the outside of the first buckle 31 is arranged in an inclined manner. The inclined surface ensures the smooth connection of the second buckle 32 and the tooth cover 2.

[0058] Further, the second buckle 32 extends outwardly and is in contact with the upper end of the opening of the bottle body 1. The stable installation of the soft rubber head 3 is ensured.

[0059] Further, a flow guide channel is arranged on the lower end surface of the dropper part, and the flow guide channel is composed of a flow guide protrusion or a flow guide groove. Through the arrangement of the flow guide channel, the material body can be smoothly sucked into the dropper. When the flow guide protrusion is arranged, refer to Figure 9 ; when the flow guide groove is arranged, it is generally arranged in the radial direction to ensure that the material body flows from the outside into the dropper part, and at least one flow guide groove is arranged, refer to Figure 10 .

[0060] Compared with the traditional dropper bottle packaging material, the product increases a self-sucking device. Through the automatic rebound of the elastic connecting part 4, the consumer automatically sucks the material when using the dropper. It can be used by opening without manual material taking. The whole self-sucking structure can be realized by only one soft glue. The soft glue rebound stroke can be adjusted according to different materials to control the single use amount. The structure is simple and the design is novel. It can be applied to various materials. Because the dropper and the bottle bottom need to reserve a safety gap, most of the droppers on the market have the problem of large residual amount. The self-sucking device added by the product is soft. The dropper and the bottle bottom do not need to leave a gap. There is no residual when using, reducing waste and being more environmentally friendly.

[0061] Basic assembly steps:

[0062] The soft glue head and the elastic connecting part are integrally arranged (generally integrally injection molded);

[0063] First, the soft glue head is assembled into the tooth cover from bottom to top, and the first buckle and the second buckle are connected;

[0064] The dropper part is assembled from bottom to top, and the first protrusion abuts against the lower end of the elastic connecting part after connection;

[0065] The button is assembled into the shoulder sleeve from bottom to top. The tooth cover assembly is assembled into the shoulder sleeve from bottom to top, and the top of the soft glue head is in interference fit with the inner side of the button. The assembly of the whole dropper head is completed (when there is no shoulder sleeve and button, this step is omitted);

[0066] The inner plug (the inner plug is made of plastic material) is assembled into the bottle body from top to bottom. The inner boss of the inner plug is connected with the side wall of the dropper part, and the positioning protrusion abuts against the bottle opening. The assembly is completed.

[0067] Finally, the tooth cover is rotated clockwise into the bottle body. At this time, the dropper part is inserted into the bottle along the inner plug. The inner boss part of the inner plug abuts against the outer wall of the dropper part. When the dropper part is pulled out, the outer wall is scraped to stabilize the dropper part and avoid shaking of the dropper part.

[0068] When using, the bottle cap assembly is removed by counterclockwise rotation. When gradually rising, the elastic connecting part rebounds and automatically sucks the material. The button is pressed or the top of the soft glue head is squeezed to use. After use, it can be rotated clockwise.

[0069] The bottom of the dropper part contacts the bottom of the bottle body and compresses the elastic connecting part. According to different materials, different lengths of the dropper part can be selected to realize different degrees of compression of the elastic connecting part. That is, the rebound stroke of the elastic connecting part is adjusted according to different materials to control the single use amount and reduce material waste. In the whole process, the inner plug scrapes the excess material on the outer wall of the dropper part, which is also a key to avoid material waste.

[0070] The above merely is preferred implementation manner of the present application, and is not used for limiting the present application, it should be pointed out, for ordinary skilled person in the technical field, on the premise of not departing from the technical principle of the present application, can also make several improvements and variations, these improvements and variations also should be considered as the protection scope of the present application.

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-priming, residue-free dropper bottle according to claim 1, characterized in that, The elastic connecting part (4) is made of soft elastic material.

3. The self-priming, residue-free dropper bottle according to claim 1, characterized in that, 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-priming, residue-free dropper bottle according to claim 1, characterized in that, 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-priming, residue-free dropper bottle according to claim 1, characterized in that, The outer wall of the dropper part (6) is engaged with the elastic connecting part (4).

6. The self-priming, residue-free dropper bottle according to claim 1, characterized in that, 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-priming, residue-free dropper bottle according to claim 1, characterized in that, 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-priming, residue-free dropper bottle according to claim 1, characterized in that, 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-priming, residue-free dropper bottle according to claim 8, characterized in that, 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-priming, residue-free dropper bottle according to claim 1, characterized in that, 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.