A bottle cap

Abstract

The application discloses a bottle cap and relates to the technical field of daily necessities. The bottle cap comprises a bottle cap body, a main storage cavity, a flow-limiting flow channel and an outflow channel are sequentially arranged in the bottle cap body from bottom to top, the upper end of the outflow channel is an upflow outlet, the cross-sectional area of the upper part of the main storage cavity gradually decreases from bottom to top, the cross-sectional area of the flow-limiting flow channel is less than or equal to the cross-sectional area of the upper end of the main storage cavity, the cross-sectional area of the outflow channel is less than or equal to the cross-sectional area of the flow-limiting flow channel, the outflow channel is eccentrically arranged on the upper side of the main storage cavity, and the flow-limiting flow channel is obliquely connected between the main storage cavity and the outflow channel. Liquid or fine-particle objects in the bottle cap body are first flowed into the outflow channel through the flow-limiting flow channel after being flow-limited by the main storage cavity, and finally flowed out through the upflow outlet arranged at the upper end of the outflow channel on one side of the bottle cap body, so that the stability of liquid outflow speed can be ensured, the flow speed is more easily controlled, and the bottle cap is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of daily necessities technology, specifically to a bottle cap. Background Technology

[0002] Bottle caps are common household items. They are fixed to the top of containers. When pouring out liquid from a container, too much liquid often flows out suddenly, causing waste and making them very inconvenient to use.

[0003] Although limiting the size of the bottle cap opening also has a certain flow-limiting effect, the flow rate is unstable and difficult to control due to the sudden reduction in cross-sectional area, making it inconvenient to use. Summary of the Invention

[0004] Therefore, the present invention provides a bottle cap that can limit the flow of liquids or fine particulate matter, thereby solving the problems of waste and inconvenience caused by the inability to control the flow rate in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The bottle cap includes a bottle cap body, which contains a main storage cavity, a flow-limiting channel, and an outflow channel arranged sequentially from bottom to top. The upper end of the outflow channel is the upper outlet. The cross-sectional area of ​​the upper part of the main storage cavity gradually decreases from bottom to top. The cross-sectional area of ​​the flow-limiting channel is less than or equal to the cross-sectional area of ​​the upper end of the main storage cavity. The cross-sectional area of ​​the outflow channel is less than or equal to the cross-sectional area of ​​the flow-limiting channel. The outflow channel is eccentrically located on one side above the main storage cavity. The flow-limiting channel is inclinedly connected between the main storage cavity and the outflow channel.

[0007] Furthermore, a first flow-limiting protrusion protruding into the bottle cap body is provided on one side of the bottle cap body, and a second flow-limiting protrusion is provided on the other side of the bottle cap body. The flow-limiting channel is located between the first flow-limiting protrusion and the second flow-limiting protrusion, and the outflow channel is located between the second flow-limiting protrusion and the inner wall of the bottle cap body.

[0008] Furthermore, the longitudinal section of the first flow-limiting protrusion is triangular, the upper side of the first flow-limiting protrusion is gradually inclined downward along the direction close to the second flow-limiting protrusion, the lower side of the first flow-limiting protrusion is gradually inclined upward along the direction close to the second flow-limiting protrusion, the lower side of the second flow-limiting protrusion is gradually inclined downward along the direction away from the first flow-limiting protrusion, and the flow-limiting channel is located between the upper side of the first flow-limiting protrusion and the lower side of the second flow-limiting protrusion.

[0009] Furthermore, the upper end of the bottle cap body is connected to a top cover, which is rotatably connected to the upper end of the bottle cap body. When in use, the top cover can be lifted off. The top cover is provided with a sealing plate that extends into the upper outlet.

[0010] Furthermore, the thickness of the sealing plate gradually increases along the direction approaching the second flow-limiting protrusion. The sealing plate is another sealing measure besides the top cover, and it can fit tightly against the inner wall of the upstream outlet to prevent liquid from entering or leaving. By designing the thickness of the sealing plate to gradually increase along the direction approaching the second flow-limiting protrusion, the force required to open the top cover changes linearly, preventing the need for excessive force to overcome a jamming point when opening the top cover. This invention can prevent damage to the top cover.

[0011] Furthermore, an air hole is provided on the other side of the bottle cap body. The lower end of the air hole is connected to the main storage cavity, and the upper end of the air hole passes upward through the second flow-limiting protrusion. A sealing needle corresponding to the air hole is provided on the top cover.

[0012] Furthermore, the second flow-limiting protrusion is a hollow structure, and an intermediate wall is provided inside the second flow-limiting protrusion or between the second flow-limiting protrusion and the inner wall of the bottle cap body. The air hole is provided on the intermediate wall, the upper end of the intermediate wall is lower than the upper surface of the bottle cap body, and the longitudinal section of the intermediate wall and the upper side of the second flow-limiting protrusion is funnel-shaped.

[0013] Furthermore, a sealing plug is also provided inside the outflow channel, and a sealing handle is fixedly connected to the upper side of the sealing plug. The sealing plug is another sealing measure after the sealing plate. It is located below the upper outflow outlet where the sealing plate is inserted. The highest point of the sealing handle is slightly lower than the upper outflow buckle, and it can be pulled out from the outflow channel to ensure the cleanliness and hygiene of the bottle mouth.

[0014] Furthermore, a drainage bottle opening is provided on one side of the upstream outlet. This opening prevents liquid from flowing along the outer wall of the bottle cap when pouring, ensuring greater cleanliness and hygiene. The bottle cap is equipped with a fastening buckle that engages with the drainage bottle opening. The fastening buckle seals the drainage bottle opening after the top cover seals the upstream outlet, ensuring hygiene. To open the top cover, simply pry the fastening buckle upwards by hand.

[0015] Furthermore, a bottle mouth connecting sleeve is threadedly connected to the lower end of the bottle cap body. The bottle mouth connecting sleeve is fixedly connected to the upper port of the container. The bottle cap body can be directly removed from the bottle mouth connecting sleeve, and the liquid can be poured out like a normal bottle. If the bottle cap body is fixed to the bottle mouth connecting sleeve and the top cap is opened, the liquid can be poured out after flow restriction, which is suitable for small-scale use.

[0016] The present invention has the following advantages:

[0017] This invention incorporates a flow-limiting channel and an outflow channel within the bottle cap body. The main storage chamber, the flow-limiting channel, and the outflow channel form a funnel-shaped structure, which directly limits the flow of liquid or fine particulate matter within the bottle cap body. Furthermore, the flow-limiting channel is inclinedly connected between the main storage chamber and the outflow channel. After the liquid or fine particulate matter within the bottle cap body is limited by the main storage chamber, it first flows into the outflow channel through the flow-limiting channel and finally exits through the upper outlet located at the top of the outflow channel on one side of the bottle cap body. This ensures a stable liquid outflow rate. If the outflow channel were located directly above the center of the main storage chamber, the liquid would overflow rapidly due to an excessively large tilting angle. This invention solves this problem by tilting the flow-limiting channel, achieving the same or even larger volume while maintaining a smaller tilting angle during liquid outflow, making the flow rate easier to control and convenient to use.

[0018] This invention creates a flow-limiting channel and an outflow channel by respectively setting a first flow-limiting protrusion and a second flow-limiting protrusion on both sides of the inside of the bottle cap body, thereby ensuring that the outer contour of the bottle cap body is regular and making it more convenient to use. (Connection point)

[0019] An air vent is located on the other side of the bottle cap body. The air vent and the upper surface of the bottle cap body are funnel-shaped, allowing liquid flowing out of the air vent to flow back into the container. A sealing pin corresponding to the air vent is provided on the cap. The air vent allows air to be introduced into the main storage chamber when the material is poured out of the bottle, thereby maintaining stable internal pressure within the bottle cap body and thus maintaining stable material flow rate. When the cap is closed, the sealing pin inserts into the upper part of the air vent, thus sealing the vent. Preferably, the air vent is perpendicular to the horizontal plane. Attached Figure Description

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0022] Figure 1 This is a schematic diagram of a bottle cap provided in Embodiment 1 of the present invention;

[0023] Figure 2This is a dimensional diagram of various positions on the bottle cap according to Embodiment 1 of the present invention;

[0024] Figure 3 This is a schematic diagram of the bottle cap structure provided in Embodiment 2 of the present invention;

[0025] Figure 4 This is a dimensional diagram of the various parts of the bottle cap according to Embodiment 2 of the present invention;

[0026] Figure 5 This is a schematic diagram of the connection between the drainage bottle opening and the fixing buckle in Embodiment 2 of the present invention;

[0027] Figure 6 This is a schematic diagram of a sealing plug provided in Embodiment 2 of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the bottle cap in Embodiment 3 of the present invention;

[0029] Figure 8 This is a schematic diagram of the bottle cap in Embodiment 4 of the present invention;

[0030] In the diagram: 1-Bottle cap body; 2-First flow-limiting protrusion; 3-Second flow-limiting protrusion; 4-Main storage cavity; 5-Flow-limiting channel; 6-Outflow channel; 7-Upflow outlet; 8-Draw-out bottle mouth; 9-Top cover; 10-Air hole; 11-Sealing needle; 12-Sealing plate; 13-Fixing buckle; 14-Sealing plug; 15-Sealing handle; 16-Intermediate wall; 17-Bottle mouth connecting sleeve. Detailed Implementation

[0031] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Terms such as "upper," "lower," "left," "right," and "middle" used in this specification are only for ease of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the present invention.

[0032] Example 1

[0033] See Figure 1The bottle cap includes a bottle cap body 1. Inside the bottle cap body 1, from bottom to top, there are a main storage cavity 4, a flow-limiting channel 5, and an outflow channel 6. The upper end of the outflow channel 6 is the upper outlet. The cross-sectional area of ​​the upper part of the main storage cavity 4 gradually decreases from bottom to top. The cross-sectional area of ​​the flow-limiting channel 5 is less than or equal to the cross-sectional area of ​​the upper end of the main storage cavity 4. The cross-sectional area of ​​the outflow channel 6 is less than or equal to the cross-sectional area of ​​the outflow channel 6. The outflow channel 6 is eccentrically arranged on one side above the main storage cavity 4. The flow-limiting channel 5 is inclinedly connected between the main storage cavity 4 and the outflow channel 6.

[0034] A first flow-limiting protrusion 2 protruding into the bottle cap body 1 is provided on one side of the interior, and a second flow-limiting protrusion 3 is provided on the other side of the interior. A flow-limiting channel 5 is located between the first flow-limiting protrusion 2 and the second flow-limiting protrusion 3, and an outflow channel 6 is located between the second flow-limiting protrusion 3 and the inner wall of the bottle cap body 1. This invention, by providing the first flow-limiting protrusion 2 and the second flow-limiting protrusion 3 on both sides of the interior of the bottle cap body 1 to form the flow-limiting channel 5 and the outflow channel 6, ensures that the outer contour of the bottle cap body 1 is regular, making it more convenient to use. The longitudinal section of the first flow-limiting protrusion 2 is triangular. One side of the first flow-limiting protrusion 2 is fixed to the inner wall of the bottle cap body 1. The upper side of the first flow-limiting protrusion 2 is gradually inclined downward along the direction close to the second flow-limiting protrusion 3. The lower side of the first flow-limiting protrusion 2 is gradually inclined upward along the direction close to the second flow-limiting protrusion 3. The lower side of the second flow-limiting protrusion 3 is gradually inclined downward along the direction away from the first flow-limiting protrusion 2. The flow-limiting channel 5 is located between the upper side of the first flow-limiting protrusion 2 and the lower side of the second flow-limiting protrusion 3.

[0035] See Figure 2 The dashed lines in the diagram are structural and do not represent the structure of the bottle cap body 1. The diameter of the bottle cap body 1 is d. The lateral width at the connection between the flow-limiting channel 5 and the upper end of the main storage cavity 4 is r′. The lateral width of the outflow channel 6 is r. d > r′ ≥ r. The connection between the flow-limiting channel 5 and the upper end of the main storage cavity 4 is the main flow-limiting position within the bottle cap body 1. r′ should be less than three-quarters of d. At the same time, to ensure good pouring effect, r ≥ one-fifth of d. The optimal choice is... L2 is the maximum height of the first flow-limiting protrusion 2 in the vertical direction of the bottle cap body 1, L3 is the height of the bottle cap body 1 below the first flow-limiting protrusion 2, and L1 is the height of the outflow channel 6. The height of the bottle cap body 1 corresponding to the lower side of the second flow-limiting protrusion 3 is L2′, and L1′ and L3′ are the heights of the upper and lower sides of the bottle cap body 1 corresponding to L2′, respectively.

[0036] This invention features a flow-limiting channel 5 and an outflow channel 6 within the bottle cap body 1. The main storage cavity 4, the flow-limiting channel 5, and the outflow channel 6 form a funnel-shaped structure, which can directly limit the flow of liquid or fine particulate matter within the bottle cap body 1. Furthermore, the flow-limiting channel 5 is inclinedly connected between the main storage cavity 4 and the outflow channel 6. After the liquid or fine particulate matter within the bottle cap body 1 is limited by the main storage cavity 4, it first flows into the outflow channel 6 through the flow-limiting channel 5, and finally flows out through the upper outlet of the outflow channel 6 located on one side of the bottle cap body 1. This ensures a stable liquid outflow rate. If the outflow channel 6 were located directly above the center of the main storage cavity 4, the liquid would rush out rapidly due to an excessively large tilting angle. This invention solves this problem by tilting the flow-limiting channel 5, thus maintaining a smaller tilting angle and easier flow rate control while achieving the same or even larger volume, making it convenient to use.

[0037] Example 2

[0038] See Figure 3 In this embodiment, an upper cover 9 is connected to the upper end of the bottle cap body 1. The upper cover 9 is rotatably connected to the upper end of the bottle cap body 1, and a sealing plate 12 extending into the upper outlet 7 is provided on the upper cover 9. The thickness of the sealing plate 12 is uniform at one end near the upper outlet 7, and the thickness at the other end gradually increases along the direction near the second flow-limiting protrusion 3. This is described from the position after the upper cover 9 is opened. The sealing plate 12 is another sealing measure in addition to the upper cover 9. It can fit tightly against the inner wall of the upper outlet 7 to prevent liquid from entering or leaving. The thickness of the sealing plate 12 is designed to gradually increase along the direction near the second flow-limiting protrusion 3. The force required to open the upper cover 9 changes linearly, preventing the upper cover 9 from requiring a lot of force to overcome a jamming point when opening. This invention can prevent the upper cover 9 from being damaged.

[0039] An air vent 10 is provided on the other side of the bottle cap body 1. The lower end of the air vent 10 is connected to the main storage cavity 4, and the upper end of the air vent 10 passes upward through the second flow-limiting protrusion 3. A sealing pin 11 corresponding to the air vent 10 is provided on the upper cover 9. The air vent 10 allows air to be introduced into the main storage cavity 4 when the material is poured out of the bottle, thereby maintaining stable internal pressure of the bottle cap body 1 and thus maintaining stable material flow rate. When the upper cover 9 is closed, the sealing pin 11 is inserted into the upper part of the air vent 10, thereby sealing the air vent 10. The dimensions at each position in this embodiment are still referenced. Figure 2 L2≤L2′, so that as little liquid as possible flows into the vent 10 during pouring.

[0040] The second flow-limiting protrusion 3 is a hollow structure. An intermediate wall 18 is provided inside the second flow-limiting protrusion 3 or between the second flow-limiting protrusion 3 and the inner wall of the bottle cap body 1. The air hole 10 is provided on the intermediate wall 18. The upper end of the intermediate wall 16 is lower than the upper surface of the bottle cap body 1. The longitudinal section of the intermediate wall 16 and the upper side of the second flow-limiting protrusion 3 is funnel-shaped so that the liquid flowing out from the air hole 10 can flow back into the container through the air hole 10.

[0041] See Figure 4 The length a′ of the sealing needle 11 is greater than or equal to the height from the upper end of the vent 10 to the upper surface of the cap body 1, and the distance d′ between the sealing needle 11 and the side of the cap 9 is equal to the distance from the upper end of the vent 10 to the side of the cap body 1, to ensure that the sealing needle 11 reliably seals the vent 10. The width of the sealing plate 12 is equal to the transverse width of the outflow channel 6, both being r.

[0042] See Figure 5 A drainage bottle opening 8 is provided on one side of the upper outlet 7. The drainage bottle opening 8 prevents liquid from flowing along the outer wall of the bottle cap body 1 when pouring out, making it cleaner and more hygienic. The bottle cap is provided with a fixing buckle 13 that is fastened to the drainage bottle opening 8. The fixing buckle 13 can seal the drainage bottle opening 8 after the upper cover 9 seals the upper outlet 7. When in use, the upper cover 9 can be opened by prying the fixing buckle 13 from bottom to top by hand, ensuring the hygiene of the bottle opening.

[0043] See Figure 6 A sealing plug 14 is also provided inside the outflow channel 6, and a sealing handle 15 is fixedly connected to the upper side of the sealing plug 14. The sealing plug 14 is another sealing measure after the sealing plate 12. The sealing plate 12 is inserted below the upper outlet 7. The sealing plug 14 can be pulled out of the outflow channel 6 through the sealing handle 15 to ensure the cleanliness and hygiene of the bottle mouth. The sealing handle 15 of the sealing plug 14 must be lower than the upper side of the upper outlet 7, so L1 should be greater than 5mm.

[0044] Example 3

[0045] See Figure 7 A bottle cap body 1 has a threaded connection to a bottle mouth connecting sleeve 17 on its lower side. The bottle mouth connecting sleeve 17 is fixed at the upper port of the container. When flow restriction is not required, the entire bottle cap body 1 can be removed from the bottle mouth connecting sleeve 17, and the liquid can be poured out like a normal bottle. However, after connecting the bottle cap body 1 to the bottle mouth connecting sleeve 17, the upper cover 9 can be opened to pour out the liquid after flow restriction, which is suitable for small-scale use and is more convenient to use.

[0046] Example 4

[0047] See Figure 8 In this embodiment, the sealing plate 12 can also be as follows: Figure 8As shown in the structure, the sealing plate 12 is inserted directly downward into the outflow channel 6. The thickness of the sealing plate 12 is also designed to gradually increase along the direction close to the second flow-limiting protrusion 3. The force required to open the top cover 9 is linearly varied, which prevents the top cover 9 from being damaged by requiring a lot of force to overcome a jamming point when opening.

[0048] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A bottle cap, characterized in that: The bottle cap includes a bottle cap body (1). The bottle cap body (1) is provided with a main storage cavity (4), a flow limiting channel (5) and an outflow channel (6) from bottom to top. The upper end of the outflow channel (6) is the upper outlet (7). The cross-sectional area of ​​the upper part of the main storage cavity (4) gradually decreases from bottom to top. The cross-sectional area of ​​the flow limiting channel (5) is less than or equal to the cross-sectional area of ​​the upper end of the main storage cavity (4). The cross-sectional area of ​​the outflow channel (6) is less than or equal to the cross-sectional area of ​​the flow limiting channel (5). The outflow channel (6) is eccentrically set on the upper side of the main storage cavity (4). The flow limiting channel (5) is inclinedly connected between the main storage cavity (4) and the outflow channel (6). The bottle cap body (1) has a first flow-limiting protrusion (2) protruding into the bottle cap body (1) on one side inside, and a second flow-limiting protrusion (3) on the other side inside the bottle cap body (1). The flow-limiting channel (5) is located between the first flow-limiting protrusion (2) and the second flow-limiting protrusion (3), and the outflow channel (6) is located between the second flow-limiting protrusion (3) and the inner wall of the bottle cap body (1). The longitudinal section of the first current limiting protrusion (2) is triangular, and the upper side of the first current limiting protrusion (2) is gradually inclined downward along the direction close to the second current limiting protrusion (3). The bottle cap body (1) has an air hole (10) on the other side inside. The lower end of the air hole (10) is connected to the main storage cavity (4). The upper end of the air hole (10) passes through the second flow-limiting protrusion (3) upward. The second flow-limiting protrusion (3) is a hollow structure. An intermediate wall (16) is provided inside the second flow-limiting protrusion (3) or between the second flow-limiting protrusion (3) and the inner wall of the bottle cap body (1). The air hole (10) is set on the intermediate wall (16). The upper end of the intermediate wall (16) is lower than the upper surface of the bottle cap body (1). The longitudinal section of the intermediate wall (16) and the upper side of the second flow-limiting protrusion (3) is funnel-shaped.

2. The bottle cap according to claim 1, characterized in that: The upper end of the bottle cap body (1) is connected to the upper cover (9), which is rotatably connected to the upper end of the bottle cap body (1). The upper cover (9) is provided with a sealing plate (12) that extends into the upper outlet (7) to seal the upper outlet (7).

3. The bottle cap according to claim 2, characterized in that: The thickness of the sealing plate (12) near the upper outlet (7) is uniform, while the thickness of the other end gradually increases along the direction near the second flow-limiting protrusion (3).

4. The bottle cap according to claim 2, characterized in that: The upper cover (9) is provided with a sealing pin (11) corresponding to the air hole (10).

5. The bottle cap according to claim 1, characterized in that: The outflow channel (6) is also provided with a sealing plug (14), and a sealing handle (15) is fixedly connected to the upper side of the sealing plug (14).

6. The bottle cap according to claim 2, characterized in that: The upstream outlet (7) is provided with a flow inlet (8) on one side, and the bottle cap is provided with a fixing buckle (13) that is fastened to the flow inlet (8).

7. The bottle cap according to claim 1, characterized in that: The lower end of the bottle cap body (1) is threaded with a bottle mouth connecting sleeve (17).

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