A bottle cap with a convenient opening size adjustment
By designing a knob cylinder and an adjustment component with internal thread engagement, the problems of liquid splashing and inconvenient flow control in traditional bottle caps are solved, achieving precise liquid adjustment and sealing. It is suitable for high-pressure liquid scenarios, improving user experience and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN DELUXE METAL IND LTD
- Filing Date
- 2025-06-28
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional bottle caps are prone to liquid splashing when opened, making it impossible to control the flow as needed, and the sealing structure is prone to leakage, affecting the user experience and safety.
An adjustment assembly including a knob cylinder, spring, moving column, sealing plate and flow guide hole is designed. The flow rate is adjusted by controlling the overlap between the flow guide hole and the liquid outlet hole through the knob cylinder, and the opening size is adjusted by driving the inner cylinder to move through the internal thread engagement. At the same time, a composite sealing structure is adopted to ensure the sealing performance.
It effectively prevents liquid splashing, achieves precise flow control, ensures sealing, extends service life, is suitable for high-pressure liquid scenarios, and improves safety and cleanliness.
Smart Images

Figure CN224393416U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bottle cap technology, and in particular to a bottle cap that allows for easy adjustment of the opening size. Background Technology
[0002] Traditional bottle caps (such as beverage bottle caps and condiment bottle caps) generally have the following defects:
[0003] Liquid splashing upon opening: The pressure inside the bottle (especially for gaseous liquids) can easily cause liquid to splash when opened instantaneously, polluting the environment and causing waste. Most bottle caps only support fully open or fully closed states, making it impossible to control the liquid pouring flow as needed, resulting in inconvenience or over-pouring. The adjustment mechanism and sealing structure are not effectively coordinated, making leakage prone to occur after long-term use. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a bottle cap with an adjustable opening size, so as to solve the problem that when the bottle cap is opened, liquid or water at the bottle opening will splash out when there is too much gas or too much pressure in the bottle, which affects the user experience.
[0005] In view of this, the present invention provides a bottle cap with an adjustable opening size, comprising:
[0006] A bottle cap base, wherein a lifting inner cylinder is slidably installed on the inner wall of the bottle cap base;
[0007] An adjustment component is provided at the top of the lifting inner cylinder;
[0008] The adjustment component includes:
[0009] A knob cylinder, wherein a rotating groove is provided at the top of the lifting inner cylinder, and the knob cylinder is rotatably mounted on the groove wall;
[0010] The movable column is slidably mounted on the inner wall of the knob cylinder;
[0011] A spring is fixedly installed between one end of the inner wall of the knob cylinder and one end of the moving column;
[0012] A sealing plate is fixedly installed at the end of the movable column away from the spring.
[0013] A flow guide hole is formed on the sealing plate;
[0014] A flow gate is fixedly installed at the bottom end of the sealing plate.
[0015] Optionally, the inner wall of the knob cylinder is provided with grooves on both sides;
[0016] The movable column is slidably mounted on the groove wall via a slider protruding from one end.
[0017] One end of the movable column extends into the interior of the lifting inner cylinder;
[0018] The sealing plate is located at the top inside the lifting inner cylinder;
[0019] The flow gate is located on the inner wall surface of the lifting inner cylinder.
[0020] Optionally, a liquid outlet hole is provided at the top of the outer wall of the lifting inner cylinder, and one end of the liquid outlet hole extends to the top of the inner wall of the lifting inner cylinder;
[0021] The liquid outlet is located at one end of the top of the inner wall of the lifting inner cylinder, corresponding to the guide hole.
[0022] Optionally, the flow gate is trapezoidal;
[0023] The outer wall of the lifting inner cylinder is provided with external threads;
[0024] The outer wall of the lifting inner cylinder has an opening;
[0025] The flow gate corresponds to the position of the opening.
[0026] Optionally, a number of limiting posts are fixedly installed at the protruding ring at the bottom of the inner wall of the bottle cap base;
[0027] The bottom end of the lifting inner cylinder is provided with several limiting grooves;
[0028] The lifting inner cylinder is slidably installed on the outer wall of the corresponding limiting column through the limiting groove.
[0029] Optionally, a drive sleeve is rotatably mounted on the top of the outer wall of the bottle cap base;
[0030] The top end of the drive sleeve is provided with a mounting hole;
[0031] An internally threaded protrusion is fixedly installed on the inner wall of the mounting hole;
[0032] The internal threaded protrusion is threadedly connected to the external thread of the outer wall of the lifting inner cylinder.
[0033] Optionally, an annular seal is fixedly installed at the top end of the inner wall of the drive sleeve;
[0034] A sealing groove is provided at the top of the outer wall of the lifting inner cylinder;
[0035] The sealing groove engages with the annular seal.
[0036] As can be seen from the above technical solutions, the embodiments of this utility model have the following advantages:
[0037] 1. This utility model discloses a bottle cap with an easily adjustable opening size, which utilizes a pressure relief adjustment assembly consisting of a knob cylinder, spring, moving column, sealing plate, and flow guide hole. This completely solves the problem of liquid splashing upon opening the bottle, making it particularly suitable for high-pressure applications such as carbonated beverages and fermented liquids, thus improving safety and cleanliness.
[0038] 2. This utility model provides a bottle cap with an easily adjustable opening size. By rotating a knob, the overlap between the guide hole and the outlet hole is controlled, enabling precise adjustment of small flow rates. A rotating drive sleeve, through the engagement of an internal threaded protrusion with the external thread of the lifting inner cylinder, causes the lifting inner cylinder to move vertically, changing the exposure height of the opening and achieving large flow rate adjustment. It supports precise control across the entire flow range, meeting the needs of different usage scenarios, and is intuitive and easy to operate.
[0039] 3. This utility model provides a bottle cap with an easily adjustable opening size. The sealing plate adopts a composite structure of a plastic plate and a rubber gasket, which continuously adheres to the top wall of the lifting inner cylinder under the action of a spring. A sealing groove is provided at the top of the lifting inner cylinder, forming a dynamic sealing interface with the annular seal of the drive sleeve. It maintains a seal in any adjustment state, preventing liquid leakage; the composite sealing structure is wear-resistant, extending its service life.
[0040] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description
[0041] The present invention will be further described below with reference to the accompanying drawings:
[0042] Figure 1 This is a front view structural diagram of the present invention;
[0043] Figure 2 This is a schematic cross-sectional view of the present invention.
[0044] Figure 3 This is a partial structural diagram of the present invention;
[0045] Figure 4 This is a schematic diagram of the internal threaded protrusion structure of this utility model.
[0046] Explanation of reference numerals in the attached drawings: 1. Bottle cap base; 2. Limiting post; 3. Drive sleeve; 4. Internal threaded protrusion; 5. Annular seal; 6. Lifting inner cylinder; 7. Limiting groove; 8. Opening; 9. Knob cylinder; 10. Spring; 11. Moving post; 12. Sealing plate; 13. Guide hole; 14. Flow gate; 15. Liquid outlet. Detailed Implementation
[0047] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.
[0048] The following describes in detail, with reference to the accompanying drawings, an embodiment of the present invention: a bottle cap with an adjustable opening size.
[0049] Example 1
[0050] For easier understanding, please refer to Figures 1 to 4 This utility model provides an embodiment of a bottle cap with an adjustable opening size, comprising a bottle cap base 1, a lifting inner cylinder 6 slidably mounted on the inner wall of the bottle cap base 1, and an adjustment component at the top of the lifting inner cylinder 6; the adjustment component includes a knob cylinder 9, a spring 10, a moving column 11, a sealing plate 12, a flow guide hole 13, and a flow gate 14; a rotating groove is provided at the top of the lifting inner cylinder 6, the knob cylinder 9 is rotatably mounted on the groove wall, the spring 10 is fixedly mounted on one end of the inner wall of the knob cylinder 9, the moving column 11 is slidably mounted on the inner wall of the knob cylinder 9, and the spring 10 is fixedly mounted on one end of the moving column 11, the sealing plate 12 is fixedly mounted on one end of the moving column 11, the flow guide hole 13 is opened at one end of the sealing plate 12, and the flow gate 14 is fixedly mounted on the bottom end of the sealing plate 12.
[0051] By setting an adjustment component, when the bottle cap is opened, the guide hole 13 and the liquid outlet 15 are connected first, allowing some of the gas in the bottle to escape, which effectively reduces liquid splashing and makes it easy to adjust the size of the opening 8 to control the flow rate of the poured liquid. The knob cylinder 9 can drive the sealing plate 12 and the flow gate 14 to rotate, and the spring 10 can rebound to press the sealing plate 12 against the top of the inner wall of the lifting inner cylinder 6, sealing the connection between the liquid outlet 15, the knob cylinder 9 and the lifting inner cylinder 6.
[0052] The bottom of the sealing plate 12 is a plastic plate, and the top is a rubber gasket.
[0053] The inner wall of the knob cylinder 9 has grooves on both sides. The moving column 11 is slidably installed on the groove wall via a slider with one end protruding. One end of the moving column 11 extends into the interior of the lifting inner cylinder 6. The sealing plate 12 is located at the top of the interior of the lifting inner cylinder 6. The flow gate 14 is located on the surface of the inner wall of the lifting inner cylinder 6. The top of the outer wall of the lifting inner cylinder 6 has a liquid outlet hole 15. One end of the liquid outlet hole 15 extends to the top of the inner wall of the lifting inner cylinder 6. The position of the end of the liquid outlet hole 15 at the top of the inner wall of the lifting inner cylinder 6 corresponds to the guide hole 13. The bottom of the inner wall of the bottle cap base 1 is provided with threads. The bottle cap base 1 is threaded to the bottle mouth through the threads. When sealing the liquid outlet hole 15, the guide hole 13 on the sealing plate 12 is rotated away from the liquid outlet hole 15. When it is necessary to release air, the knob cylinder 9 is turned by hand to rotate the guide hole 13 on the sealing plate 12 to align with the liquid outlet hole 15 to release air.
[0054] The flow gate 14 is trapezoidal, and the outer wall of the lifting inner cylinder 6 has external threads and an opening 8. The flow gate 14 is positioned corresponding to the opening 8. Several limiting posts 2 are fixedly installed at the protruding ring at the bottom of the inner wall of the bottle cap base 1. Several limiting grooves 7 are provided at the bottom of the lifting inner cylinder 6, and the lifting inner cylinder 6 is slidably installed on the outer wall of the corresponding limiting post 2 through the limiting grooves 7. By setting the limiting posts 2, the lifting inner cylinder 6 can be kept to move in a straight line, preventing the lifting inner cylinder 6 from rotating. The opening 8 is located on the side of the outer wall of the lifting inner cylinder 6 for pouring out liquid.
[0055] In some embodiments, a drive sleeve 3 is rotatably mounted on the top of the outer wall of the bottle cap base 1. The top of the drive sleeve 3 has an installation hole, and an internal threaded protrusion 4 is fixedly mounted on the inner wall of the installation hole. The internal threaded protrusion 4 is threadedly connected to the external thread of the outer wall of the lifting inner cylinder 6. An annular seal 5 is fixedly mounted on the top of the inner wall of the drive sleeve 3. A sealing groove is opened on the top of the outer wall of the lifting inner cylinder 6, and the sealing groove engages with the annular seal 5.
[0056] When the bottle cap needs to be opened, the drive sleeve 3 is rotated by hand. The internal threaded protrusion 4 rotates and presses the threaded side wall of the external thread of the lifting inner cylinder 6, causing the lifting inner cylinder 6 to rise and fall. The size of the opening 8 can also be adjusted by extending the lifting inner cylinder 6 to different heights. Furthermore, the annular sealing element 5 seals the drive sleeve 3 and the lifting inner cylinder 6 when the lifting inner cylinder 6 is closed on the bottle cap, maintaining the sealing effect of the bottle cap.
[0057] In summary, the bottle cap offers multiple ways to adjust the opening size, has a venting function, and is easy and simple to open, reducing the possibility of the cap falling or being lost, thus providing multiple functions.
[0058] Instructions: When the bottle cap needs to be opened, manually rotate the drive sleeve 3. The internal threaded protrusion 4 rotates and presses the threaded side wall of the external thread of the lifting inner cylinder 6, causing the lifting inner cylinder 6 to rise and fall. By extending the lifting inner cylinder 6 to different heights, the size of the opening 8 can be adjusted. When venting is required, manually rotate the knob cylinder 9 to rotate the guide hole 13 on the sealing plate 12 until it is aligned with the liquid outlet hole 15 to vent.
[0059] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A bottle cap for easily adjusting the size of an opening, characterized by: include: Bottle cap base (1), wherein a lifting inner cylinder (6) is slidably installed on the inner wall of the bottle cap base (1); An adjustment component is provided at the top of the lifting inner cylinder (6); The adjustment component includes: The knob cylinder (9) has a rotating groove at the top of the lifting inner cylinder (6), and the knob cylinder (9) is rotatably mounted on the groove wall of the rotating groove. The movable column (11) is slidably installed on the inner wall of the knob cylinder (9); A spring (10) is fixedly installed between one end of the inner wall of the knob cylinder (9) and one end of the moving column (11); A sealing plate (12) is fixedly installed at the end of the movable column (11) away from the spring (10); A flow guide hole (13) is provided on the sealing plate (12); The flow gate (14) is fixedly installed at the bottom end of the sealing plate (12).
2. The bottle cap of claim 1, wherein: The inner wall of the knob cylinder (9) is provided with sliding grooves on both sides; The movable column (11) is slidably mounted on the groove wall by a slider protruding from one end of its side; One end of the movable column (11) extends into the interior of the lifting inner cylinder (6); The sealing plate (12) is located at the top inside the lifting inner cylinder (6); The flow gate (14) is located on the inner wall surface of the lifting inner cylinder (6).
3. The bottle cap of claim 1, wherein: The top of the outer wall of the lifting inner cylinder (6) is provided with a liquid outlet hole (15), one end of which extends to the top of the inner wall of the lifting inner cylinder (6); The liquid outlet (15) is located at one end of the top of the inner wall of the lifting inner cylinder (6) and corresponds to the guide hole (13).
4. The bottle cap of claim 1, wherein: The flow gate (14) is trapezoidal; The outer wall of the lifting inner cylinder (6) is provided with external threads; The outer wall of the lifting inner cylinder (6) is provided with an opening (8); The flow gate (14) is positioned opposite to the opening (8).
5. The bottle cap of claim 1, wherein: Several limiting posts (2) are fixedly installed at the protruding ring at the bottom of the inner wall of the bottle cap base (1); The bottom end of the lifting inner cylinder (6) is provided with several limiting grooves (7); The lifting inner cylinder (6) is slidably installed on the outer wall of the corresponding limiting column (2) through the limiting groove (7).
6. The bottle cap of claim 1, wherein: A drive sleeve (3) is rotatably mounted on the top of the outer wall of the bottle cap base (1); The top end of the drive sleeve (3) is provided with an installation hole; An internal threaded protrusion (4) is fixedly installed on the inner wall of the mounting hole; The internal threaded protrusion (4) is threadedly connected to the external thread of the outer wall of the lifting inner cylinder (6).
7. A bottle cap for easily adjusting the size of an opening according to claim 6, wherein: An annular seal (5) is fixedly installed at the top of the inner wall of the drive sleeve (3); A sealing groove is provided at the top of the outer wall of the lifting inner cylinder (6); The sealing groove engages with the annular seal (5).