A droplet bottle
The double-sealing structure of the inner plug and outer cap solves the problem of insufficient sealing of the dropper bottle, achieving higher sealing performance and lower risk of liquid leakage, thus extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- OCUMENSION THERAPEUTICS (SUZHOU) CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-23
AI Technical Summary
The sealing structure of the dropper bottle is relatively simple, resulting in poor sealing performance.
It adopts a double sealing structure of inner plug and outer cover. The inner plug includes a through hole and a liquid outlet, and the outer cover includes a first sealing part and a second sealing part. During installation, the two parts abut against the inner wall of the through hole and the contact surface of the liquid outlet, respectively, to form a multi-layer seal and enhance the sealing performance.
It improves the sealing of the dropper bottle, reduces the possibility of liquid leakage and contamination, and extends its service life.
Smart Images

Figure CN224393420U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of liquid container technology, and more particularly to a dripping bottle. Background Technology
[0002] With the development of the pharmaceutical industry, the types and functions of eye drops have gradually increased. As the packaging material for eye drops, the sealing performance of the dropper bottle is closely related to the quality of the eye drops. Currently, the sealing structure of dropper bottles is relatively simple, resulting in poor sealing effect. Utility Model Content
[0003] This application provides a dropper bottle to address the problem of its relatively simple sealing structure.
[0004] This application provides a dropping bottle, the dropping bottle comprising:
[0005] Bottle body;
[0006] An inner plug, which is installed in the bottle body;
[0007] An outer cap, which is installed on the side of the bottle body where the inner plug is installed;
[0008] The inner plug includes a through hole and a liquid outlet. The through hole penetrates the inner plug, and the liquid outlet protrudes from the bottle body and has a first contact surface on the side away from the bottle body. The outer cap includes a first sealing part and a second sealing part. When the outer cap is installed on the bottle body, the first sealing part abuts against the inner wall of the through hole, and the second sealing part abuts against the first contact surface.
[0009] In one possible embodiment, the second sealing portion is disposed around the first sealing portion, and there is a gap between the first sealing portion and the second sealing portion.
[0010] In one possible embodiment, both the first sealing portion and the second sealing portion protrude from the inner wall of the outer cover. Along the direction away from the inner wall of the outer cover, the cross-sectional area of the second sealing portion gradually decreases, and the side facing the first sealing portion is arc-shaped. The gap between the second sealing portion and the first sealing portion gradually increases.
[0011] In one possible embodiment, the length of the second sealing portion is less than the length of the first sealing portion.
[0012] In one possible embodiment, the inner plug includes a first connecting portion connected to the bottle body, the first connecting portion including a first limiting portion, the bottle body including a second limiting portion, and the first limiting portion and the second limiting portion abutting against each other.
[0013] In one possible embodiment, one of the first limiting portion and the second limiting portion includes a first protrusion, and the other includes a second protrusion and a third protrusion. Along the height direction of the dropper bottle, the first protrusion is located between the second protrusion and the third protrusion, and abuts against the sidewall of the second protrusion and / or the sidewall of the third protrusion.
[0014] In one possible embodiment, the inner plug includes a second connecting portion disposed around the first connecting portion and connected to the outer surface of the bottle body.
[0015] In one possible embodiment, the bottle body includes a recess, and the second connecting portion includes a first connecting segment, the first connecting segment including a fourth protrusion located in the recess and abutting against the inner wall of the recess.
[0016] In one possible embodiment, the second connecting portion includes a second connecting segment located between the first connecting portion and the second connecting segment; a second abutting surface is provided at the opening of the bottle body, and the second connecting segment includes a fifth protrusion that abuts against the second abutting surface.
[0017] In one possible embodiment, the outer cap includes a third sealing portion that abuts against the side of the second connecting section away from the bottle body.
[0018] This application relates to a dropper bottle, comprising a bottle body, an inner stopper, and an outer cap. The inner stopper is installed in the bottle body, and the outer cap is installed on the side of the bottle body where the inner stopper is installed. The inner stopper includes a through hole and a liquid outlet. The through hole penetrates the inner stopper, and the liquid outlet protrudes from the bottle body, allowing liquid in the bottle to drip out from the liquid outlet. The liquid outlet has a first contact surface on the side away from the bottle body, surrounding the through hole. The outer cap includes a first sealing part and a second sealing part. When the outer cap is installed in the bottle body, the first sealing part abuts against the inner wall of the through hole, sealing the through hole. The second sealing part abuts against the first contact surface, further improving the sealing between the outer cap and the inner stopper and reducing the possibility of liquid in the bottle flowing out from the through hole. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 A cross-sectional view of a dropping bottle provided in an embodiment of this application;
[0021] Figure 2 for Figure 1 A magnified view of the area at position I in the middle;
[0022] Figure 3 A cross-sectional view of the outer cover provided in an embodiment of this application;
[0023] Figure 4 A cross-sectional view of an inner plug provided in an embodiment of this application;
[0024] Figure 5 A cross-sectional view of another inner plug provided in an embodiment of this application;
[0025] Figure 6 A cross-sectional view of the bottle provided in an embodiment of this application.
[0026] Figure label:
[0027] 1-Bottle body;
[0028] 11-First protrusion;
[0029] 12-Depression;
[0030] 13-Second contact surface;
[0031] 2-Internal plug;
[0032] 21-Through hole;
[0033] 22-Liquid outlet;
[0034] 221 - First contact surface;
[0035] 23-First connecting part;
[0036] 231 - Second protrusion;
[0037] 232 - Third protrusion;
[0038] 233-Limiting groove;
[0039] 24 - Second connecting part;
[0040] 241 - First connecting segment;
[0041] 241a - Fourth protrusion;
[0042] 242 - Second connecting segment;
[0043] 242a - Fifth protrusion;
[0044] 25 - Receiving groove;
[0045] 3-Outer cover;
[0046] 31-First sealing part;
[0047] 32 - Second sealing part;
[0048] 33 - Third sealing part. Detailed Implementation
[0049] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0050] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.
[0051] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.
[0052] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0053] like Figure 1 As shown, this application provides a dropper bottle, including a bottle body 1, an inner plug 2 and an outer cap 3. The inner plug 2 is installed on the bottle body 1, and the outer cap 3 is located on the side of the bottle body 1 where the inner plug 2 is provided, and is connected to the bottle body 1 by threads, so that the outer cap 3 is detachably installed on the bottle body 1.
[0054] like Figure 2 and Figure 3 As shown, the inner plug 2 includes a through hole 21 and a liquid outlet 22. Along the height direction of the dropper bottle, the through hole 21 penetrates the inner plug 2, and the liquid outlet 22 protrudes from the bottle body 1, allowing liquid inside the bottle body 1 to drip out through the through hole 21 and the liquid outlet 22. The liquid outlet 22 has a first contact surface 221 on the side away from the bottle body 1, and the first contact surface 221 surrounds the through hole 21. The outer cap 3 includes a first sealing part 31 and a second sealing part 32. When the outer cap 3 is installed on the bottle body 1, the first sealing part 31 abuts against the inner wall of the through hole 21, and the second sealing part 32 abuts against the first contact surface 221.
[0055] When the outer cap 3 is installed on the bottle body 1, the dropper bottle is in a closed state. At least a portion of the first sealing part 31 extends into the through hole 21 from one side of the liquid outlet 22 and abuts against the inner wall of the through hole 21, so that the inner wall of the through hole 21 and the first sealing part 31 fit tightly together, thereby sealing the through hole 21 and reducing the possibility of liquid flowing out of the bottle body 1 through the through hole 21. The first abutting surface 221 is arranged around the through hole 21 and is located on the same plane as the end face of the through hole 21. The second sealing part 32 abuts against the first abutting surface 221, further improving the sealing between the outer cap 3 and the inner plug 2, and reducing the possibility of liquid flowing out of the bottle body 1 through the through hole 21.
[0056] After the outer cap 3 is installed on the bottle body 1, if the first sealing part 31 fails, the second sealing part 32 abuts against the first contact surface 221 to reduce the possibility of liquid leakage inside the bottle body 1. The first contact surface 221 and the end face of the through hole 21 are located on the same plane. When the first sealing part 31 fails, it can reduce the possibility of liquid inside the bottle body 1 contacting the outer wall of the liquid outlet 22, and reduce the possibility of liquid inside the bottle body 1 being contaminated.
[0057] like Figure 2 and Figure 3 As shown, in one possible embodiment, the second sealing portion 32 is disposed around the first sealing portion 31, and there is a gap between the first sealing portion 31 and the second sealing portion 32.
[0058] The second sealing part 32 is disposed around the first sealing part 31 and can abut against the first abutting surface 221, so that the second sealing part 32 and the first abutting surface 221 are tightly fitted, reducing the possibility of liquid leakage in the bottle 1 when the first sealing part 31 fails.
[0059] In one possible embodiment, one of the inner plug 2 and the outer cap 3 is made of an elastic material, and the other is made of a harder material. When the outer cap 3 is installed on the bottle body, the inner plug 2 abuts against the outer cap 3, and the elastic material can undergo slight deformation, allowing the outer cap 3 to seal the through hole 21 on the inner plug 2, reducing the possibility of liquid leakage in the bottle body 1. Taking the inner plug 2 as an elastic material and the outer cap 3 as a harder material as an example, after the outer cap 3 is installed on the bottle body 1, the first sealing part 31 extends into the through hole 21 and presses tightly, and the second sealing part 32 abuts against the first contact surface 221. The first contact surface 221 in the inner plug 2 will undergo slight deformation, reducing the possibility of a gap between the second sealing part 32 and the first contact surface 221, further improving the sealing performance of the dropper bottle.
[0060] There is a gap between the first sealing part 31 and the second sealing part 32, which can reserve space for the deformation of the first contact surface 221, and improve the sealing performance of the dropper bottle when the outer cover 3 is installed on the bottle body 1.
[0061] like Figure 2 and Figure 3As shown, in one possible embodiment, the first sealing part 31 protrudes from the inner wall of the outer cover 3, and the cross-sectional area of the first sealing part 31 gradually decreases along the direction away from the inner wall of the outer cover 3.
[0062] The cross-sectional area of the first sealing part 31 at the end near the inner wall of the outer cover 3 is larger than the cross-sectional area of the through hole 21, and the cross-sectional area at the end away from the inner wall of the outer cover 3 is smaller than the cross-sectional area of the end of the through hole 21 near the outer cover 3. When the outer cover 3 is installed on the bottle body 1, the end of the first sealing part 31 away from the inner wall of the outer cover 3 extends into the through hole 21 and abuts against the inner wall of the through hole 21.
[0063] like Figure 2 As shown, in one possible embodiment, the outer surface of the end of the first sealing part 31 away from the inner wall of the outer cover 3 is arc-shaped, so that the first sealing part 31 can extend into the through hole 21.
[0064] like Figure 2 and Figure 3 As shown, in one possible embodiment, the cross-sectional area of the second sealing part 32 gradually decreases along the direction away from the inner wall of the outer cover 3, and the side of the second sealing part 32 facing the first sealing part 31 is arc-shaped, so that the width of the gap between the second sealing part 32 and the first sealing part 31 gradually increases.
[0065] The side of the second sealing part 32 facing the first sealing part 31 is arc-shaped. When the second sealing part 32 abuts against the first abutting surface 221, the second sealing part 32 deforms away from the first sealing part 31. The arc-shaped surface abuts against the first abutting surface 221, which can increase the contact area between the second sealing part 32 and the first abutting surface 221, improve the sealing effect of the second sealing part 32, and at the same time, reduce the possibility of interference between the second sealing part 32 and the first sealing part 31.
[0066] When the inner plug 2 is made of an elastic material and the outer cover 3 is made of a material with high hardness, the second sealing part 32 abuts against the first contact surface 221, and the second sealing part 32 will deform. Along the direction away from the inner wall of the outer cover 3, the gap between the second sealing part 32 and the second sealing part 32 gradually increases. After the second sealing part 32 deforms, the possibility of interference with the first contact part can be reduced.
[0067] When the outer cover 3 is made of an elastic material and the inner plug 2 is made of a material with high hardness, the second sealing part 32 abuts against the first abutting surface 221, and the first abutting surface 221 will deform. The side of the second sealing part 32 facing the first sealing part 31 is arc-shaped, so that the first abutting surface 221 can extend between the second sealing part 32 and the first sealing part 31 to improve the sealing effect.
[0068] like Figure 2 and Figure 3As shown, in one possible embodiment, both the first sealing part 31 and the second sealing part 32 protrude from the inner wall of the outer cover 3, and the length of the second sealing part 32 is less than the length of the first sealing part 31.
[0069] The first sealing part 31 extends into the through hole 21, and the second sealing part 32 abuts against the first contact surface 221. The length of the second sealing part 32 is less than the length of the first sealing part 31, which reduces the deformation of the second sealing part 32. During the installation of the outer cap 3 onto the bottle body 1, the reverse force generated by the deformation of the second sealing part 32 is reduced, which helps to reduce the difficulty of installing the outer cap 3 onto the bottle body 1. During the repeated opening and closing of the outer cap 3, the reduced deformation of the second sealing part 32 also reduces the possibility of damage to the second sealing part 32, which helps to improve the service life of the dropping bottle.
[0070] like Figure 1 and Figure 4 As shown, in one possible embodiment, the inner plug 2 includes a first connecting portion 23 that extends into the bottle body 1, connecting the inner plug 2 to the bottle body 1. The first connecting portion 23 includes a first limiting portion, and the bottle body 1 includes a second limiting portion. When the inner plug 2 is installed in the bottle body 1, the first limiting portion and the second limiting portion abut against each other to limit the relative position of the inner plug 2 and the bottle body 1, reducing the possibility of the inner plug 2 falling off.
[0071] like Figure 4 and Figure 6 As shown, in one possible embodiment, one of the first limiting portion and the second limiting portion includes a first protrusion 11, and the other includes a second protrusion 231 and a third protrusion 232. Along the height direction of the dropper bottle, the first protrusion 11 is located between the second protrusion 231 and the third protrusion 232, and one side of the first protrusion 11 can abut against the sidewall of the second protrusion 231, and / or the other side of the first protrusion 11 can abut against the sidewall of the third protrusion 232, so as to limit the relative position of the inner stopper 2 and the bottle body 1.
[0072] Taking the second limiting part in the bottle body 1 including the first protrusion 11 and the first limiting part in the first connecting part 23 including the second protrusion 231 and the third protrusion 232 as an example, the first protrusion 11 protrudes from the inner wall of the bottle body 1 and the cross-section of the first protrusion 11 is annular. The second protrusion 231 and the third protrusion 232 protrude from the first connecting part 23 and are spaced apart along the height direction of the dropper bottle. The distance between the second protrusion 231 and the third protrusion 232 is greater than or equal to the width of the first protrusion 11. After the inner plug 2 is installed in the bottle body 1, along the height direction of the dropper bottle, one side of the first protrusion 11 abuts against the second protrusion 231 and / or the other side abuts against the third protrusion 232, which can limit the relative position of the inner plug 2 and the bottle body 1 and reduce the possibility of the inner plug 2 falling off.
[0073] like Figure 5 and Figure 6 As shown, in one possible embodiment, one of the first limiting part and the second limiting part includes a first protrusion 11 and the other includes a limiting groove 233. Along the height direction of the dripping bottle, the first protrusion 11 is located in the limiting groove 233 and abuts against the inner wall of the limiting groove 233 to limit the relative position of the inner plug 2 and the bottle body 1, thereby reducing the possibility of the inner plug 2 falling off or the liquid in the bottle body 1 leaking.
[0074] In one possible embodiment, the first connecting part 23 and the inner wall of the bottle body 1 can be an interference fit, so that the first connecting part 23 and the inner wall of the bottle body 1 fit tightly together, reducing the possibility of gaps between the first connecting part 23 and the bottle body 1, thereby reducing the possibility of liquid leakage in the bottle body 1.
[0075] like Figure 1 , Figure 3 and Figure 4 As shown, in one possible embodiment, the inner plug 2 includes a second connecting portion 24, which surrounds the first connecting portion 23 and together with the first connecting portion 23 forms a receiving groove 25. After the inner plug 2 is installed on the bottle body 1, the end of the bottle body 1 connected to the inner plug 2 can extend into the receiving groove 25, so that the second connecting portion 24 is connected to the outer surface of the bottle body 1.
[0076] The second connecting part 24 is connected to the outer surface of the bottle body 1, which can further improve the reliability of the inner plug 2 after it is connected to the bottle body 1, thereby reducing the possibility of the inner plug 2 falling off.
[0077] like Figure 1 , Figure 5 and Figure 6 As shown, in one possible embodiment, the second connecting portion 24 includes a first connecting segment 241 and a second connecting segment 242. The first connecting segment 241 is located on the side of the bottle body 1 away from the first connecting portion 23, and the second connecting segment 242 is located at the top of the bottle body 1. One end of the second connecting segment 242 is connected to the first connecting portion 23, and the other end is connected to the second connecting segment 242, so that the first connecting segment 241, the second connecting segment 242, and the first connecting portion 23 form a receiving groove 25. The bottle body 1 includes a recessed portion 12, and the first connecting segment 241 includes a fourth protrusion 241a. The fourth protrusion 241a is located within the recessed portion 12 and abuts against the inner wall of the recessed portion 12.
[0078] The fourth protrusion 241a cooperates with the recess 12 to restrict the relative position of the second connecting part 24 and the bottle body 1, thereby reducing the possibility of the inner stopper 2 falling off. The fourth protrusion 241a abuts against the two opposing inner walls in the height direction of the dropper bottle in the recess 12 and / or abuts against the inner wall of the recess 12 located on the radial side of the dropper bottle, so that the fourth protrusion 241a can form a sealing structure with the bottle body 1. If the seal between the first connecting part 23 and the inner wall of the bottle fails, the liquid in the bottle body 1 will flow out between the first connecting part 23 and the bottle body 1. The abutment of the fourth protrusion 241a against the inner wall of the recess 12 can reduce the possibility of liquid leakage.
[0079] like Figure 1 , Figure 5 and Figure 6 As shown, in one possible embodiment, the bottle body 1 has an opening at the top, and the first connecting portion 23 extends into the bottle body 1 through the opening. A second abutting surface 13 is provided at the opening, and the second abutting surface 13 surrounds the opening. The second connecting segment 242 in the second connecting portion 24 is located at the top of the bottle body 1. The second connecting segment 242 includes a fifth protrusion 242a, which is located on the side close to the bottle body 1 and abuts against the second abutting surface 13.
[0080] When the inner plug 2 is installed on the bottle body 1, the fifth protrusion 242a abuts against the second abutting surface 13, forming a sealing structure. If the seal between the first connecting part 23 and the inner wall of the bottle fails, the liquid in the bottle body 1 will flow out between the first connecting part 23 and the bottle body 1. The fifth protrusion 242a abuts against the second abutting surface 13, which can reduce the possibility of liquid outflow.
[0081] like Figures 1 to 4 As shown, in one possible embodiment, the outer cover 3 includes a third sealing part 33 and a third protrusion 232 protruding from the inner wall of the outer cover 3. When the outer cover 3 is installed on the bottle body 1, the third sealing part 33 abuts against the side of the second connecting section 242 away from the bottle body 1, which can press the second connecting section 242 tightly, making the connection between the inner plug 2 and the bottle body 1 more reliable and reducing the possibility of the inner plug 2 coming off.
[0082] In one possible embodiment, when the outer cap 3 is installed on the bottle body 1, the projection of the fifth protrusion 242a can be located within the projection range of the third sealing part 33 along the height direction of the dropper bottle, so that the third sealing part 33 can press the fifth protrusion 242a tightly, making the fifth protrusion 242a fit more tightly with the second abutment surface 13, improving the sealing effect at the fifth protrusion 242a, and reducing the possibility of liquid leakage in the bottle body 1.
[0083] This application relates to a dropper bottle, comprising a bottle body 1, an inner plug 2, and an outer cap 3. The inner plug 2 is installed on the bottle body 1, and the outer cap 3 is installed on the side of the bottle body 1 where the inner plug 2 is installed. The inner plug 2 includes a through hole 21 and a liquid outlet 22. The through hole 21 penetrates the inner plug 2, and the liquid outlet 22 protrudes from the bottle body 1, allowing liquid in the bottle body 1 to drip out through the liquid outlet 22. The liquid outlet 22 has a first contact surface 221 on the side away from the bottle body 1, and the first contact surface 221 surrounds the through hole 21. The outer cap 3 includes a first sealing part 31 and a second sealing part 32. When the outer cap 3 is installed on the bottle body 1, the first sealing part 31 abuts against the inner wall of the through hole 21, sealing the through hole 21. The second sealing part 32 abuts against the first contact surface 221, further improving the sealing between the outer cap 3 and the inner plug 2, and reducing the possibility of liquid in the bottle body 1 flowing out through the through hole 21.
Claims
1. A dropping bottle, characterized in that, The dropping bottle includes: Bottle body (1); Inner plug (2), the inner plug (2) is installed on the bottle body (1); Outer cap (3), said outer cap (3) is installed on the side of the bottle body (1) where the inner plug (2) is installed; The inner plug (2) includes a through hole (21) and a liquid outlet (22). The through hole (21) penetrates the inner plug (2), and the liquid outlet (22) protrudes from the bottle body (1) and has a first contact surface (221) on the side away from the bottle body (1). The outer cover (3) includes a first sealing part (31) and a second sealing part (32). When the outer cover (3) is installed on the bottle body (1), the first sealing part (31) abuts against the inner wall of the through hole (21), and the second sealing part (32) abuts against the first contact surface (221).
2. The dropping bottle according to claim 1, characterized in that, The second sealing part (32) is disposed around the first sealing part (31), and there is a gap between the first sealing part (31) and the second sealing part (32).
3. The dropping bottle according to claim 2, characterized in that, Both the first sealing part (31) and the second sealing part (32) protrude from the inner wall of the outer cover (3). Along the direction away from the inner wall of the outer cover (3), the cross-sectional area of the second sealing part (32) gradually decreases, and the side facing the first sealing part (31) is arc-shaped. The gap between the second sealing part (32) and the first sealing part (31) gradually increases.
4. The dropping bottle according to claim 3, characterized in that, The length of the second sealing part (32) is less than the length of the first sealing part (31).
5. The dropping bottle according to claim 1, characterized in that, The inner plug (2) includes a first connecting part (23), which is connected to the bottle body (1). The first connecting part (23) includes a first limiting part, and the bottle body (1) includes a second limiting part. The first limiting part and the second limiting part abut against each other.
6. The dropping bottle according to claim 5, characterized in that, One of the first limiting portion and the second limiting portion includes a first protrusion (11), and the other includes a second protrusion (231) and a third protrusion (232). Along the height direction of the dropper bottle, the first protrusion (11) is located between the second protrusion (231) and the third protrusion (232), and abuts against the side wall of the second protrusion (231) and / or the side wall of the third protrusion (232).
7. The dropping bottle according to claim 6, characterized in that, The inner plug (2) includes a second connecting portion (24), which is disposed around the first connecting portion (23) and is connected to the outer surface of the bottle body (1).
8. The dropping bottle according to claim 7, characterized in that, The bottle body (1) includes a recessed portion (12), and the second connecting portion (24) includes a first connecting segment (241). The first connecting segment (241) includes a fourth protrusion (241a), which is located in the recessed portion (12) and abuts against the inner wall of the recessed portion (12).
9. The dropping bottle according to claim 8, characterized in that, The second connecting part (24) includes a second connecting segment (242) located between the first connecting part (23) and the second connecting segment (242); the opening of the bottle body (1) is provided with a second abutting surface (13), and the second connecting segment (242) includes a fifth protrusion (242a), which abuts against the second abutting surface (13).
10. The dropping bottle according to claim 9, characterized in that, The outer cover (3) includes a third sealing part (33), which abuts against the side of the second connecting section (242) away from the bottle body (1).