High-stability ready-to-prepare bottle cap
By setting a limiting ridge and a limiting part of the follower in the ready-to-use bottle cap, the spike can stably pierce the sealing film, solving the problem of difficulty in use for the elderly and children, and improving the stability and ease of opening of ready-to-use beverages.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-31
- Publication Date
- 2026-04-10
AI Technical Summary
Existing ready-made bottle caps are difficult to use with the elderly or children, as the spikes cannot reliably pierce the sealing film. Furthermore, the environmentally friendly materials used result in insufficient structural strength, making it impossible to effectively mix solutes and solutions.
A highly stable, ready-to-use bottle cap was designed. By setting a first and a second limiting ridge inside the storage cap, combined with the limiting and driving parts of the driven part, the spiked part can sequentially press down, cut, and pierce the seal during the counterclockwise spiral process, ensuring stability. The thread design and limiting structure also improve the ease of opening the cap.
It improves the stability and ease of piercing the seal with the spikes, ensures the stability of ready-to-drink beverages, reduces the difficulty of opening the cap, is suitable for the elderly and children, and avoids problems such as seal deformation and insufficient structural strength.
Smart Images
Figure CN224104622U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of formula bottle cap, specifically point to a kind of high stability formula bottle cap. BACKGROUND
[0002] The existing beverage bottle is in order to avoid the taste of honey water and other beverages to deteriorate and nutrient loss, the cover of beverage bottle is set to double-cover structure including upper cover and lower cover, the lower cover is provided with storage cavity for storing solute and the bottom is provided with sealing film, the upper cover is provided with sharp for puncturing sealing film, so as to realize the isolation transport storage of solute and solution, when user needs to drink beverage, the solute in storage cavity can be mixed with solution to form instant beverage by pressing upper cover to sharp to puncture sealing film.
[0003] However, in order to ensure the sealing to completely seal the solute, the sealing film at the bottom of the lower cover is generally made of high-toughness, high-density composite film material, which can cause the sealing film to deform without breaking when the sharp is pressed down, at this time, the sealing film can be pierced only with a certain probability by pressing the upper cover hard, but this is difficult for elderly or child users, and in order to protect the environment, the upper cover is generally supported by environmentally friendly materials, which results in insufficient structural strength for detection, and the sharp has the risk of deformation and cannot penetrate the sealing film when pressed down. It can be seen that the existing instant bottle cap has the defect that it cannot ensure that the sharp pierces the sealing film to realize the mixing of solute and solution.
[0004] Aiming at the problems existing in the prior art, the utility model provides a high stability formula bottle cap which can make the sharp pierce the sealing film stably. UTILITY MODEL CONTENTS
[0005] Aiming at the problems existing in the prior art, the utility model provides a high stability formula bottle cap which can effectively solve the problems existing in the prior art.
[0006] The technical scheme of the utility model is:
[0007] A high stability formula bottle cap, comprising:
[0008] The storage cover is provided with a containing cavity for storing solute, and the lower end of the containing cavity is provided with a sealing element, and the inner wall of the containing cavity is provided with a first limiting rib and a second limiting rib extending upward and downward, and the first limiting rib and the second limiting rib are arranged circumferentially and spaced apart;
[0009] The driven member is sleeved in the containing cavity, and the lower part of the driven member is provided with a sharp part corresponding to the sealing element, and the outer wall of the driven member is provided with a limiting part corresponding to the first limiting rib in circumference;
[0010] A driving cover is screwed to the storage cover and seals the upper end of the accommodating cavity. A middle part of the driving cover is provided with a driving part extending downward into the accommodating cavity and screwed to the upper part of the driven part. In the process of counterclockwise screwing of the driving cover, the driven part is sequentially subjected to downward screwing of the driving part, vertical downward pressing of the sealing element by circumferential abutment between the limiting part and the first limiting ridge, until the limiting part is separated from the first limiting ridge and circumferentially corresponds to the first action of the counterclockwise side of the second limiting ridge, is subjected to screw cutting of the sealing element by the driving part until the second limiting ridge circumferentially abuts the clockwise side of the second limiting ridge, is subjected to the second action, is subjected to downward screwing of the driving part and vertical downward pressing of the sealing element again by circumferential abutment between the limiting part and the second limiting ridge, and is subjected to the third action of piercing the sealing element.
[0011] Further, the number of the first limiting ridges, the second limiting ridges and the limiting parts is two. Each second limiting ridge is below each first limiting ridge counterclockwise side. The lower end of the first limiting ridge is provided with a clearance surface gradually increasing in height in the counterclockwise direction.
[0012] Further, the clockwise side of the first limiting ridge and the second limiting ridge is provided with a clamping side at an acute angle with the inner wall of the accommodating cavity, and the counterclockwise side is provided with an inclined side at an obtuse angle with the inner wall of the accommodating cavity. The clockwise side of the limiting part is provided with a clearance side with a round corner, and the counterclockwise side is provided with an abutting side perpendicular to the outer wall of the driven part. When the limiting part rotates clockwise, the clearance side is used to abut across the inclined side to allow the driven part to rotate. When the limiting part rotates counterclockwise, the abutting side is used to clamp the clamping side to prevent the driven part from rotating.
[0013] Further, the outer periphery of the driving cover is downwardly folded, and the inner wall is provided with a first thread for screwing the upper end of the storage cover. The outer periphery of the storage cover is downwardly folded, and the inner wall is provided with a second thread for screwing the bottle mouth. The screw locking directions of the first thread and the second thread are opposite.
[0014] Further, the inner wall of the driving part and the upper outer wall of the driven part are respectively provided with driving threads and driven threads for screwing. The pitches of the driving threads and the driven threads are greater than the pitch of the first thread.
[0015] Further, the lower thread of the driven thread is used for close screwing with the driving thread. The upper thread of the driven thread is used for screwing with the driving thread, but the width of the screw tooth is less than the pitch of the driving thread, and the pitch is greater than the width of the screw tooth of the driving thread.
[0016] Further, the upper thread of the driven thread includes a plurality of thread segments arranged circumferentially at intervals.
[0017] Further, the follower is provided in a cylindrical shape, and two symmetrical sharp parts are formed by gradually narrowing the rear end of the follower extending downward on both sides.
[0018] Further, the sealing member is provided in a sealing film, and a preset groove is provided at the joint between the outer periphery of the inner top of the sealing member and the lower end of the storage cover.
[0019] Further, the lower inner diameter of the accommodating cavity is adapted to the outer diameter of the follower, and the upper inner diameter is larger than the outer diameter of the follower to form a buffer area, and the outer diameter of the sealing member is adapted to the outer diameter of the follower.
[0020] Therefore, the beneficial effects of the present application are:
[0021] 1. By adding the storage cover and the follower, the follower sequentially includes the first action of the downward pushing of the driven part and the vertical downward pressing of the sealing member between the circumferential abutment limiting of the limiting part and the first limiting rib until the limiting part is separated from the first limiting rib and circumferentially corresponds to the first action of the first limiting rib on the counterclockwise side, the second action of the driven part driving the spiral cutting of the sealing member until the second limiting rib circumferentially abuts the second limiting rib on the clockwise side, and the third action of the downward pushing of the driven part and the circumferential abutment limiting of the limiting part and the second limiting rib between the vertical downward pressing of the sealing member. Thus, by the circumferential cooperation between the limiting part and the first limiting rib and the second limiting rib, the follower sequentially performs the first action, the second action and the third action during the opening of the driving cover, realizes the consecutive actions of the downward pressing of the sharp part, the spiral cutting of the sealing member and the stable piercing of the sealing member, avoids the deformation of the sealing member during the opening of the cover, realizes the spiral cutting by the second action, improves the stability of the follower piercing the sealing member by the sharp part to realize the mixing of the solute and the solution, and ensures the stability of the beverage formed during the opening of the cover.
[0022] 2. By limiting the number of the first limiting rib, the second limiting rib, and the limiting part, in this embodiment, during the process of the drive cover being fully opened by rotating counterclockwise 900°, the driven member is in the first action when rotating from approximately 0° to 360°, in the second action when rotating from approximately 360° to 540°, and in the third action when rotating from approximately 540° to 900°. Thus, under the premise that the second action is available and can perform 180° to fully cut the seal, the stroke of the first and second actions of the driven member is increased, the vertical downward pressing distance of the spike is increased, ensuring the stability of its piercing of the seal, and avoiding excessive impact of the increase of the second action on the stroke of the first and third actions. Furthermore, by adding a clearance surface, the limiting part of the driven member, which has a certain spiral upward stroke when performing the second action, can be cleared to avoid interference that could cause the spiral cutting action of the spike to fail.
[0023] 3. By setting up a snap-fit side, an inclined side, a yielding side, and an abutting side, when the limiting part rotates clockwise, the yielding side is used to abut across the inclined side to allow the driven part to rotate. This facilitates the drive cover to first screw the driven part onto the storage cover and then screw the entire drive cover onto the storage cover. This avoids the clockwise screwing between the drive cover and the storage cover being affected by the limiting part and the first limiting rib, which would reduce the sealing performance of the drive cover. When the limiting part rotates counterclockwise, the abutting side is used to snap the snap-fit side to prevent the driven part from rotating, thereby improving the snap-fit strength between the abutting side and the snap-fit side. This prevents the limiting part from failing when the drive cover is opened, which would cause the driven part to detach from the storage cover as the drive cover rotates. This ensures the stability of the drive cover driving the driven part to press vertically downward and puncture the seal.
[0024] 4. By setting the locking directions of the first and second threads to be opposite, when the user grasps the bottle and rotates the first thread counterclockwise to open the drive cap, the second thread of the storage cap will lock deeper into the bottle opening counterclockwise. This avoids the risk that the storage cap will open directly along with the bottle when the user grasps the bottle and rotates the drive cap. This solves the defect in existing products where the user can only grasp the storage cap to rotate the drive cap, resulting in low torque and requiring a large force to open the cap. Even elderly or children can easily increase the torque by grasping the bottle and the drive cap to easily rotate and open the cap.
[0025] 5. By increasing the pitch of the driving thread and the driven thread, the downward pressing distance of the driving thread on the driven thread is greater than the upward pressing distance of the driving cover under the same number of spiral turns. This increases the vertical downward pressing distance of the driven part after being pushed down by the spiral without increasing the coverage of the driving cover and with the number of spiral turns of the cover opening fixed. This further increases the vertical downward pressing distance of the spike and further ensures the stability of the spike piercing the seal.
[0026] 6. When the drive cover is opened, as the drive thread spirals along the lower thread of the driven thread towards the upper thread, the two remain tightly connected and have sufficient friction. After the driven part completes the first action, the spike has been pressed down and abutted against the top of the seal. This allows the driven part to be stably rotated by the drive cover and perform the second action of spirally cutting the seal through sufficient friction at the upper end and abutting force at the lower end, improving the stability of the spike's spiral cutting of the seal. On this basis, the width of the upper thread teeth of the driven thread is reduced and the pitch of the upper thread of the driven thread is increased. This ensures that after the driven part stably performs the second action, after the drive thread spirals up to the upper thread of the driven thread, the friction between the two is reduced, reducing the opening force required in the later stages of opening the drive cover and reducing the overall difficulty of opening the drive cover.
[0027] 7. By using spaced thread segments to reduce the friction between the upper thread of the driven thread and the driving thread, the friction between the two can be greatly reduced after the driven part stably performs the second action and the driving thread spirals up to the upper thread of the driven thread. This further reduces the opening force required in the later stages of opening the drive cover and further reduces the overall difficulty of opening the drive cover.
[0028] 8. By setting two symmetrical spikes, when the driven part performs the second action, it can directly spirally cut the seal through the spikes on both sides to form a cutting line that is close to a complete circle, thereby improving the effect of the spikes spirally cutting the seal. At the same time, the addition of reinforcing plates improves the structural strength of the spikes and reduces the difficulty of pressing the seal vertically downward. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of a highly stable, ready-to-use bottle cap.
[0030] Figure 2 This is a cross-sectional exploded view of a highly stable, ready-to-use bottle cap.
[0031] Figure 3 This is a cross-sectional structural diagram of a highly stable ready-to-use bottle cap.
[0032] Figure 4 This is a schematic diagram of the driven component.
[0033] Figure 5 This is a cross-sectional view of the storage cover from another perspective.
[0034] Figure 6 This is a top view of the storage cover and the driven component.
[0035] Figure 7 This is a top view of the storage cover. Detailed Implementation
[0036] For the convenience of those skilled in the art to understand, the structure of the utility model will be further described in detail in combination with the drawings:
[0037] Reference Figures 1-7 A high-stability instant bottle cap, comprising:
[0038] The storage cap 1 is provided on the corresponding bottle mouth, a storage cavity 11 for storing solute is arranged in the storage cap 1, a sealing element 4 is arranged at the lower end of the storage cavity 11, a first limiting rib 12 and a second limiting rib 13 extending upward and downward are arranged on the inner wall of the storage cavity 11, and the first limiting rib 12 and the second limiting rib 13 are arranged in a circumferential interval.
[0039] The follower 2 is arranged in the storage cavity 11, a sharp part 21 corresponding to the sealing element 4 is arranged on the lower part of the follower 2, and a limiting part 22 corresponding to the first limiting rib 12 in a circumferential interval is arranged on the outer wall of the follower 2.
[0040] The driving cap 3 is screwed with the storage cap 1 and seals the upper end of the storage cavity 11, and a driving part 31 extending downward into the storage cavity 11 and screwed with the upper part of the follower 2 is arranged on the middle part of the driving cap 3.
[0041] The above structure realizes that, in the process of counterclockwise screwing the driving cap 3, the follower 2 is sequentially subjected to the downward screwing of the driving part 31, the vertical downward pressing of the sealing element 4 by the circumferential abutment between the limiting part 22 and the first limiting rib 12, the first action of the limiting part 22 being separated from the first limiting rib 12 and circumferentially corresponding to the second limiting rib 13 on one side of the counterclockwise, the second action of the sealing element 4 being cut by the driving part 31 until the second limiting rib 13 circumferentially abuts the second limiting rib 13 on one side of the clockwise, and the third action of the sealing element 4 being pierced again by the vertical downward pressing of the follower 2 by the circumferential abutment between the limiting part 22 and the second limiting rib 13. Therefore, by the circumferential cooperation between the limiting part 22 and the first limiting rib 12 and the second limiting rib 13, the follower 2 sequentially performs the first action, the second action and the third action in the process of opening the driving cap 3, realizes the consecutive actions of the sharp part 21 being first pressed and abutting the sealing element 4, then cutting the sealing element 4 to destroy the elasticity of the cutting part, and finally pressing and piercing the sealing element 4 again, avoids the situation that the sealing element 4 is deformed with the pressing of the sharp part 21 and is difficult to be pierced in the process of opening the cap, the cutting by the second action can also avoid the deformation of the sharp part 21, improves the stability of the follower 2 piercing the sealing element 4 by the sharp part 21 to realize the mixing of the solute and the solution, and ensures the stability of the instant beverage formed after the cap is opened.
[0042] In order to improve the vertical downward pressing distance of the sharp part 21, the number of the first limiting ridge 12, the second limiting ridge 13 and the limiting part 22 is two, each second limiting ridge 13 is below the counterclockwise side of each first limiting ridge 12, and the lower end of the first limiting ridge 12 is inclinedly provided with a clearance surface 121 which gradually increases in height in the counterclockwise direction. In other embodiments, the number of the first limiting ridge 12, the second limiting ridge 13 and the limiting part 22 can be adaptively adjusted according to specific conditions. By limiting the number of the first limiting ridge 12, the second limiting ridge 13 and the limiting part 22, in this embodiment, during the process of driving the cover 3 to be completely opened counterclockwise by 900°, the follower 2 is in the first action when rotating about 0°-360°, the follower 2 is in the second action when rotating about 360°-540°, and the follower 2 is in the third action when rotating about 540°-900°, thereby improving the stroke of the first action and the second action of the follower 2, improving the vertical downward pressing distance of the sharp part 21, ensuring the stability of the sharp part 21 in piercing the sealing member 4, avoiding the increase of the second action from excessively affecting the stroke of the first action and the third action, and by the addition of the clearance surface 121, the limiting part 22 of the follower 2 which has a certain spiral ascending stroke when performing the second action can be given clearance to avoid interference and cause the spiral cutting action of the sharp part 21 to fail.
[0043] In order to facilitate the installation of the follower 2 and the driving cover 3, the clockwise side of the first limiting ridge 12 and the second limiting ridge 13 is provided with a clamping side 14 which is arranged at an acute angle with the inner wall of the accommodating cavity 11, and the counterclockwise side is provided with an inclined side 15 which is arranged at an obtuse angle with the inner wall of the accommodating cavity 11, and the clockwise side of the limiting part 22 is provided with a clearance side 221 which is arranged as a round corner, and the counterclockwise side is provided with an abutting side 222 which is perpendicular to the outer wall of the follower 2. The above structure is arranged by the clamping side 14, the inclined side 15, the clearance side 221 and the abutting side 222, so that when the limiting part 22 rotates clockwise, the clearance side 221 is used to abut across the inclined side 15 to allow the follower 2 to rotate, thereby facilitating the driving cover 3 to be screwed to the follower 2 first and then screwed to the storage cover 1 as a whole, avoiding the influence of the clockwise screwing limiting part 22 and the first limiting ridge 12 between the driving cover 3 and the storage cover 1, causing the sealing performance of the driving cover 3 to decrease, when the limiting part 22 rotates counterclockwise, the abutting side 222 is used to clamp the clamping side 14 to prevent the follower 2 from rotating, thereby improving the clamping strength between the abutting side 222 and the clamping side 14, avoiding the limiting failure between the limiting part 22 and the first limiting ridge 12 or the second limiting ridge 13 when the driving cover 3 is opened, causing the follower 2 to rotate away from the storage cover 1 with the driving cover 3, and ensuring the stability of the driving cover 3 in driving the follower 2 to vertically press and pierce the sealing member 4.
[0044] In order to improve the stability of the connection between the storage cover 1 and the bottle mouth, the outer periphery of the driving cover 3 is folded downward, and the inner wall is provided with a first thread 32 for screwing the upper end of the storage cover 1. The outer periphery of the storage cover 1 is folded downward, and the inner wall is provided with a second thread 16 for screwing the bottle mouth. The screwing locking direction of the first thread 32 and the second thread 16 is opposite, specifically, the first thread 32 is locked clockwise, and the second thread 16 is locked counterclockwise. The above structure sets the locking direction of the first thread 32 and the second thread 16 in opposite directions, so that in the process of the user holding the bottle body and rotating the first thread 32 counterclockwise to open the driving cover 3, the second thread 16 of the storage cover 1 and the bottle mouth will be locked counterclockwise deeper, thereby avoiding the risk that the user holding the bottle body directly opens the driving cover 3 together with the storage cover 1 when rotating the driving cover 3, solving the defect that in the existing product, the user can only hold the storage cover 1 to rotate the driving cover 3, resulting in small torque and the need for large force to open the cover. Even if the user is an old person or a child, they can easily increase the torque by holding the bottle body and the driving cover 3 to easily rotate and open the cover.
[0045] In order to further improve the vertical downward pressing distance of the sharp part 21, the inner wall of the driving part 31 and the outer wall of the upper part of the driven part 2 are respectively provided with driving threads 311 and driven threads 23 for screwing. The pitch of the driving threads 311 and the driven threads 23 is greater than the pitch of the first threads 32. The above structure increases the pitch of the driving threads 311 and the driven threads 23, so that under the same number of spiral turns, the spiral downward pressing distance of the driving threads 311 to the driven threads 23 will be greater than the spiral upward distance of the driving cover 3. Therefore, without increasing the cover degree of the driving cover 3 and under the premise of fixed number of opening cover spiral turns, the vertical downward pressing distance of the driven part 2 after being pushed downward by the spiral is improved, further improving the vertical downward pressing distance of the sharp part 21 and further ensuring the stability of the sharp part 21 piercing the sealing part 4.
[0046] In order to improve the stability of the sharp portion 21 spiral cutting seal 4, the lower thread 231 of the driven thread 23 is used to adapt to the close screw connection with the driving thread 311, the upper thread 232 of the driven thread 23 is adapted to the screw connection with the driving thread 311 but the width of the screw thread is smaller than the pitch of the driving thread 311, and the pitch is greater than the width of the screw thread of the driving thread 311. The above structure makes the driving cover 3 open, and the driving screw 311 moves along the lower thread 231 of the driven thread 23 to the upper thread 232, and the two are always in close screw connection and have sufficient friction, and after the driven part 2 performs the first action, the sharp portion 21 has been pressed and abuts against the top of the seal 4, so that the driven part 2 can be stably driven by the driving cover 3 to rotate and perform the second action of spiral cutting the seal 4 through the sufficient friction of the upper end and the abutting force of the lower end, thereby improving the stability of the sharp portion 21 spiral cutting the seal 4. On this basis, the width of the screw thread of the upper thread 232 of the driven thread 23 is reduced, and the pitch of the upper thread 232 of the driven thread 23 is increased, so that after the driving thread 311 spirally rises to the upper thread 232 of the driven thread 23, the friction between the two is reduced, the opening force required in the later stage of opening the driving cover 3 is reduced, and the opening difficulty of the whole driving cover 3 is reduced.
[0047] In order to further reduce the opening difficulty of the whole driving cover 3, the upper thread 232 of the driven thread 23 comprises a plurality of circumferentially spaced thread segments 2321. The above structure reduces the friction between the upper thread 232 of the driven thread 23 and the driving thread 311 through the spaced thread segments 2321, so that after the driving thread 311 spirally rises to the upper thread 232 of the driven thread 23, the friction between the two can be greatly reduced, the opening force required in the later stage of opening the driving cover 3 is further reduced, and the opening difficulty of the whole driving cover 3 is further reduced.
[0048] In order to improve the effect of the sharp portion 21 spiral cutting the seal 4, the driven part 2 is cylindrical, the two sides of the driven part 2 extend downward to form two symmetrical sharp portions 21, and a reinforcing plate 211 is vertically arranged between the middle portions of the two sharp portions 21. The above structure sets the driven part 2 as a cylinder to avoid blocking the user from referring to the beverage through the upper end of the storage cover 1, and sets the sharp portion 21 as two symmetrical parts to form a cutting line tending to a complete circle when the driven part 2 performs the second action, thereby improving the effect of the sharp portion 21 spiral cutting the seal 4. At the same time, the reinforcing plate 211 improves the structural strength of the sharp portion 21 and reduces the difficulty of vertically pressing the seal 4.
[0049] In order to further improve the piercing effect of the sharp part 21 on the sealing element 4, the sealing element 4 is provided as a sealing film, and a pre-set groove 41 is provided at the junction between the inner top outer periphery of the sealing element 4 and the lower end of the storage cover 1, and the lower end of the sharp part 21 is located above the pre-set groove 41. Thus, by adding the pre-set groove 41, the thickness of the sealing element 4 at the position of the pressing, spiral cutting and piercing of the sharp part 21 can be reduced, thereby improving the piercing effect of the sharp part 21 on the sealing element 4, and avoiding irregular piercing of the sealing element 4 to cause residual solutes in the accommodating cavity 11.
[0050] In order to improve the stability of the driven part 2 after the sealing element 4 is pierced, the lower inner diameter of the accommodating cavity 11 is adapted to the outer diameter of the driven part 2, and the upper inner diameter is larger than the outer diameter of the driven part 2 to form a buffer area 111, and the outer diameter of the sealing element 4 is adapted to the outer diameter of the driven part 2. The above structure is provided so that the driven part 2 can be clamped at the lower end of the accommodating cavity 11 after the sealing element 4 is pierced, and when the user drinks the beverage in the bottle, the driven part 2 is prevented from falling out of the storage cover 1, thereby threatening the safety of the user, and the buffer area 111 is also provided so that when the user drinks the beverage, the beverage in the bottle flows through the inside of the driven part 2 to the buffer area 111, and then flows from the upper end of the storage cover 1, thereby avoiding too rapid water flow to cause the user to choke.
[0051] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A high stable ready to dispense bottle cap characterized in that, The utility model relates to a bottle cap with a storage function, comprising: a storage cap (1) is arranged on the corresponding bottle mouth, a storage cavity (11) for storing solute is arranged in the storage cap (1), a sealing element (4) is arranged at the lower end of the storage cavity (11), a first limiting rib (12) and a second limiting rib (13) extending upward and downward are arranged on the inner wall of the storage cavity (11), and the first limiting rib (12) and the second limiting rib (13) are arranged in a circumferential interval; a driven part (2) is arranged in the storage cavity (11), the lower part of the driven part (2) is provided with a sharp part (21) corresponding to the sealing element (4), and the outer wall of the driven part (2) is provided with a limiting part (22) corresponding to the first limiting rib (12) in a circumferential interval; a driving cap (3) is screwed on the storage cap (1) and seals the upper end of the storage cavity (11), and the middle part of the driving cap (3) is provided with a driving part (31) extending downward into the storage cavity (11) and screwed on the upper part of the driven part (2); during counterclockwise screwing of the driving cap (3), the driven part (2) is sequentially subjected to downward screwing of the driving part (31), circumferential abutting limiting vertical downward pressing of the limiting part (22) and the first limiting rib (12), until the limiting part (22) is separated from the first limiting rib (12) and circumferentially corresponds to the first action of the second limiting rib (13) on the counterclockwise side, the second action of the second limiting rib (13) on the clockwise side subjected to circumferential cutting of the sealing element (4) by the driving part (31), and the third action of the sealing element (4) subjected to downward screwing of the driving part (31) and circumferential abutting limiting vertical downward pressing of the limiting part (22) and the second limiting rib (13) again.
2. A high stable, ready-to-fill bottle cap according to claim 1, characterized in that, The number of the first limiting rib (12), the second limiting rib (13) and the limiting part (22) is two, the distance between each second limiting rib (13) is below each first limiting rib (12) on the counterclockwise side, and the lower end of the first limiting rib (12) is provided with a clearance surface (121) gradually increasing in height in the counterclockwise direction.
3. A high stable, ready-to-fill bottle cap according to claim 1, characterized in that, The clockwise side of the first limiting rib (12) and the second limiting rib (13) is provided with a clamping side (14) at an acute angle with the inner wall of the storage cavity (11), the counterclockwise side is provided with an inclined side (15) at an obtuse angle with the inner wall of the storage cavity (11), the clockwise side of the limiting part (22) is provided with a clearance side (221) with a round corner, and the counterclockwise side is provided with an abutting side (222) perpendicular to the outer wall of the driven part (2); when the limiting part (22) rotates clockwise, the clearance side (221) is used for abutting and crossing the inclined side (15) to allow the driven part (2) to rotate, and when the limiting part (22) rotates counterclockwise, the abutting side (222) is used for clamping the clamping side (14) to prevent the driven part (2) from rotating.
4. A high stable, ready-to-fill bottle cap according to claim 1, characterized in that, The outer periphery of the driving cover (3) is folded downward, and the inner wall is provided with a first thread (32) for screwing the upper end of the storage cover (1). The outer periphery of the storage cover (1) is folded downward, and the inner wall is provided with a second thread (16) for screwing the bottle mouth. The screwing locking directions of the first thread (32) and the second thread (16) are opposite.
5. A high stable, ready-to-fill bottle cap according to claim 4, characterized in that, The inner wall of the driving part (31) and the upper outer wall of the driven part (2) are respectively provided with driving threads (311) and driven threads (23) for screwing.
6. A high stable, ready-to-fill bottle cap according to claim 5, characterized in that, The lower thread (231) of the driven thread (23) is used for closely screwing with the driving thread (311), and the upper thread (232) of the driven thread (23) is used for screwing with the driving thread (311), but the width of the screw tooth is smaller than the pitch of the driving thread (311), and the pitch is greater than the width of the screw tooth of the driving thread (311).
7. A high stable, ready-to-fill bottle cap according to claim 5, characterized in that, The upper thread (232) of the driven thread (23) comprises a plurality of thread segments (2321) arranged at intervals in the circumferential direction.
8. A high stable, ready-to-fill bottle cap according to claim 1, characterized in that, The driven part (2) is cylindrical, and the two sides of the driven part (2) gradually narrow to form two symmetrical sharp parts (21) at the lower end.
9. A high stable, ready-to-fill bottle cap according to claim 1, characterized in that, The sealing member (4) is a sealing film, and the inner top outer periphery of the sealing member (4) is recessed to form a preset groove (41) at the joint with the lower end of the storage cover (1). The lower end of the sharp part (21) is located above the preset groove (41).
10. A high stable, ready-to-fill bottle cap according to claim 1, characterized in that, The lower inner diameter of the accommodating cavity (11) is adapted to the outer diameter of the driven part (2), and the upper inner diameter is greater than the outer diameter of the driven part (2) to form a buffer area (111). The outer diameter of the sealing member (4) is adapted to the outer diameter of the driven part (2).