Pressing bottle cap capable of discharging liquid in grading mode

Abstract

The pressing bottle cap comprises an upper cap body and a lower cap body, the upper cap body and the lower cap body are connected through a hinge portion, the lower cap body is provided with a liquid outlet portion and a pressing portion which are oppositely arranged, the liquid outlet portion comprises a liquid outlet formed in the lower cap body and a liquid outlet nozzle arranged on the liquid outlet, and the pressing portion is arranged on the liquid outlet nozzle. The pressing part is arranged to be a boss protruding upwards, and the side wall of the boss inclines towards the center. By means of the mode, when liquid is poured, downward pressing acting force is applied to different areas of the pressing part so as to control the liquid outlet amount of the liquid outlet part in a grading mode.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a press-type bottle cap that can dispense liquid in stages. Background Technology

[0002] With the widespread use of liquid packaging containers in daily chemicals, medical, food and other fields, users' needs for liquid dispensing control are becoming increasingly diversified. Traditional liquid containers often use a single press structure or measuring device to achieve liquid dispensing control, but their adjustment methods have obvious limitations.

[0003] Currently, among the mainstream technologies, one approach uses a press-type pump head with a spring-reset structure to achieve single-quantitative dispensing. When using a press-type pump head, the outlet is directly exposed to the air, which can easily breed bacteria. In addition, the pump head and the bottle are relatively large, taking up a lot of space, making it difficult to integrate multi-stage flow control functions within a limited space. Another improved approach uses measuring instruments such as graduated cylinders or measuring cups to measure the liquid. However, measuring with measuring instruments requires secondary transfer of the measuring instrument, which may cause secondary contamination and is inconvenient to use. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a simple, press-type bottle cap that enables graded liquid dispensing.

[0005] The main components of this utility model include: an upper cover and a lower cover, which are connected by a hinge.

[0006] The lower cover has a liquid outlet and a pressing part arranged opposite to each other. The liquid outlet includes a liquid outlet formed on the lower cover and a liquid outlet nozzle disposed on the liquid outlet. The pressing part is configured as an upwardly protruding boss, and the side wall of the boss is inclined towards the center. The pressing part includes a first pressing part and a second pressing part, and the first pressing part and the second pressing part are separated by a first partition groove.

[0007] Preferably, the inner sidewalls of the first pressing part and the second pressing part are provided with a plurality of vertically extending reinforcing ribs arranged in a circumferential direction.

[0008] Preferably, the first pressing part and the second pressing part are not equal in size, with the first pressing part being larger than the second pressing part, or the first pressing part being smaller than the second pressing part.

[0009] Preferably, the liquid outlet is located on the side of the upper cover that is slightly away from the hinge, and the pressing part is located on the side of the lower cover that is slightly closer to the hinge.

[0010] Preferably, a sealing post is provided on the end face of the upper cover and the lower cover opposite each other, and when the upper cover is closed on the lower cover, the sealing post can be inserted into the liquid outlet accordingly.

[0011] Preferably, the end of the sealing post furthest from the top cover has a chamfered structure.

[0012] Preferably, a recessed groove structure is provided between the bottom of the pressing part and the lower cover.

[0013] Preferably, the pressing part can be made of silicone.

[0014] The beneficial effects of this utility model are as follows: the eccentric setting of the liquid dispensing part facilitates liquid dispensing and helps reduce residual liquid in the bottle; a pressing part is provided on the opposite side of the liquid dispensing part, and by pressing down the pressing part, the internal pressure is increased, thereby controlling the liquid dispensing; the pressing part includes a first pressing part and a second pressing part of different sizes, and by selecting different pressing positions, three different liquid dispensing volumes can be achieved, which provides higher selectivity and a wider range of applications. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment;

[0016] Figure 2 This is a cross-sectional perspective view of a preferred embodiment;

[0017] Figure label:

[0018] 1. Top cover; 2. Bottom cover; 3. Hinge; 4. Dispensing part; 5. Pressing part;

[0019] 41. Liquid outlet; 42. Liquid nozzle; 43. Sealing column;

[0020] 51. First pressing part; 52. Second pressing part; 53. First dividing groove; 54. Reinforcing rib. Detailed Implementation

[0021] The technical solution protected by this utility model will be described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-2 As shown, this application discloses a press-type bottle cap with graded liquid dispensing, comprising an upper cap 1 and a lower cap 2, which are connected by a hinge 3. The upper cap 1 can be flipped to fit over the lower cap 2. The lower cap 2 has a dispensing part 4 and a pressing part 5 disposed opposite to each other. By pressing the pressing part 5, the pressure inside the bottle is increased, causing liquid to be dispensed from the dispensing part 4.

[0023] like Figure 1-2As shown, the liquid outlet 4 includes an eccentrically positioned outlet 41 on the lower cover 2. The outlet 41 is located on the side of the lower cover 2 away from the hinge 3, facilitating liquid dispensing and minimizing liquid residue to reduce waste. The pressing part 5 is located on the side of the lower cover 2 closer to the hinge 3. A dispensing nozzle 42 is provided on the outlet 41, which guides the flow during dispensing, reducing dripping. Preferably, the end of the nozzle 42 closest to the lower cover is tapered, and the diameter of the end of the nozzle 42 furthest from the lower cover 2 is smaller than the diameter of the outlet 41, allowing for controlled dispensing volume.

[0024] like Figure 1-2 As shown, a sealing post 43 is disposed on the opposite end face of the upper cover 1 and the lower cover 2. When the upper cover 1 is closed on the lower cover 2, the sealing post 43 is inserted into the dispensing nozzle 42. Preferably, the sealing post 43 and the dispensing nozzle 42 are interference-fitted to prevent liquid from leaking from the dispensing nozzle 42 when the bottle cap is closed, thereby improving the sealing performance of the bottle cap. Preferably, the end of the sealing post 43 away from the upper cover 1 is provided with a chamfered structure, so that the sealing post 43 can be smoothly inserted into the dispensing nozzle 42 during the process of closing the upper cover.

[0025] like Figure 1-2 As shown, the pressing part 5 is configured as an upwardly protruding boss structure, with the sides of the boss inclined and its upper end inclined towards the center of the boss, so that the pressing part 5 can rebound after being pressed down. By pressing the pressing part, when the volume of the cavity shrinks from V1 to V2, the gas pressure inside the bottle increases from P1 to P2. This pressure difference becomes the driving force for the liquid to flow out from the outlet. The pressing part 5 includes a first pressing part 51 and a second pressing part 52, which are separated by a first dividing groove 53. By pressing the pressing parts of different sizes, the volume change of the pressing part cavity is controlled, and the gas pressure difference inside the bottle is adjusted in stages to achieve different liquid dispensing volumes.

[0026] In an exemplary embodiment, the first pressing part 51 and the second pressing part 52 are not the same size, that is, the first pressing part 51 is larger than the second pressing part 52 or the second pressing part 52 is larger than the first pressing part 51. In this embodiment, the first pressing part 51 is larger than the second pressing part 52. Selecting different pressing positions allows switching between three different liquid dispensing volumes, specifically:

[0027] 1) Pressing the second pressing part 52 alone: ​​The corresponding cavity volume is small, and the volume reduction ΔV caused by the deformation of the pressing part is small. 52 The limited space results in a slight decrease in the volume of gas inside the cavity, and only a slight increase in pressure. Under these conditions, the resulting pressure difference is small, enough to drive only a small amount of liquid out.

[0028] 2) Pressing the first pressing part 51 alone: ​​The corresponding cavity volume is relatively large, and its pressing can achieve more significant volume compression ΔV. 51 This causes the gas inside the bottle to be rapidly compressed from a large initial volume to a smaller volume, resulting in a significant increase in pressure. This large pressure difference is sufficient to drive out more liquid.

[0029] 3) When the first pressing part 51 and the second pressing part 52 are pressed simultaneously, the volume of the two chamber areas is compressed at the same time, and the effective gas volume inside the entire bottle is reduced to the minimum, thereby generating the maximum pressure increase. The resulting maximum pressure difference drives the liquid to flow out at the maximum flow rate.

[0030] The three pressing options allow for three different dispensing volumes, with the dispensing volume increasing sequentially, enabling graded control of the dispensing volume. This can be selected according to specific circumstances to broaden the applicability and enhance practicality.

[0031] In another embodiment, the first pressing part 51 and the second pressing part 52 are the same size. By selecting different pressing positions, two different liquid output volumes can be switched. Specifically, pressing the first pressing part 51 or the second pressing part 51 alone, or pressing the first pressing part 51 and 52 at the same time, the selection of the three pressing states can achieve two different liquid output volumes, so as to realize graded control of the liquid output volume.

[0032] like Figure 1-2 As shown, preferably, the inner sidewalls of the first pressing part 51 and the second pressing part 52 are provided with a plurality of reinforcing ribs 54. The reinforcing ribs 54 are arranged in the circumferential direction and extend in the vertical direction. The reinforcing ribs 54 enhance the hardness of the sidewalls of the first pressing part 51 and the second pressing part 52, and provide a certain rebound force after they are subjected to downward pressure, so as to ensure that the pressing part 5 can return to the initial position.

[0033] Preferably, a recessed groove structure is provided between the bottom of the pressing part 5 and the lower cover 2. This groove structure provides a certain support for the side wall of the pressing part 5, preventing the pressing part from failing to recover when excessive force is applied to it. At the same time, it provides a certain clearance space for the side wall of the pressing part 5 when it is pressed down.

[0034] In this embodiment, the dispensing part 4 and the pressing part 5 are both integrally injection molded with the lower cap 2, forming a one-piece structure. This prevents leakage from the cap and improves the overall sealing performance of the cap. Preferably, the pressing part can be made of silicone.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A press-type bottle cap capable of fractional liquid discharge, characterized by comprising: Mainly includes: The upper cover and the lower cover are connected by a hinge. The lower cover has a liquid outlet and a pressing part arranged opposite to each other. The liquid outlet includes a liquid outlet formed on the lower cover and a liquid outlet nozzle disposed on the liquid outlet. The pressing part is configured as an upwardly protruding boss, and the side wall of the boss is inclined towards the center. The pressing part includes a first pressing part and a second pressing part, and the first pressing part and the second pressing part are separated by a first partition groove.

2. The press-type bottle cap with graded dispensing capability according to claim 1, characterized in that, Several vertically extending reinforcing ribs are arranged circumferentially on the inner sidewalls of the first and second pressing parts.

3. The press-type bottle cap with graded dispensing capability according to claim 1, characterized in that, The first pressing part and the second pressing part are not equal in size; the first pressing part is larger than the second pressing part, or the first pressing part is smaller than the second pressing part.

4. The press-type bottle cap with graded dispensing capability according to claim 1, characterized in that, The liquid outlet is located on the side of the upper cover that is slightly away from the hinge, and the pressing part is located on the side of the lower cover that is slightly closer to the hinge.

5. A press-type bottle cap with graded dispensing capability according to claim 1, characterized in that, A sealing post is provided on the end face of the upper cover and the lower cover opposite each other. When the upper cover is closed on the lower cover, the sealing post can be inserted into the liquid outlet.

6. A press-type bottle cap with graded dispensing capability according to claim 5, characterized in that, The end of the sealing post furthest from the top cover has a chamfered structure.

7. A press-type bottle cap with graded dispensing capability according to claim 1, characterized in that, A recessed groove structure is provided between the bottom of the pressing part and the lower cover.

8. A press-type bottle cap with graded dispensing capability according to claim 1, characterized in that, The pressing part can be made of silicone.

Images