Bottom cover convenient to rotate

By designing a convenient rotating bottom cap, combined with a horizontally and vertically rotating screw cap and a silicone valve, the problem of inconvenience in using existing squeeze-type bottles is solved, enabling convenient fluid extrusion and sealing, and optimizing the user experience.

CN224159698UActive Publication Date: 2026-04-24李良华
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
李良华
Filing Date
2023-11-26
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing squeeze bottles have drawbacks such as difficulty in easily emptying the fluid, residue at the bottle mouth, and the inconvenience of having to open and close the cap each time they are used, especially when used repeatedly in the kitchen.

Method used

A convenient rotating bottom cover was designed, comprising a main body, a liquid outlet, a valve device, and a connecting screw cap. The liquid outlet is opened and closed through a combination of horizontal and vertical rotation. Combined with a silicone valve and a movable stop, it ensures sealing and ease of use.

Benefits of technology

It enables convenient and hygienic extrusion of fluid when the bottle is placed upside down, eliminating the need for frequent opening and closing of the cap, optimizing the user experience, and ensuring that even the last drop of fluid can be easily extruded.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rotary convenient bottom cover, which is used for being connected with a bottle body, the convenient bottom cover is provided with a main body, a liquid outlet is arranged on the main body, a valve device is arranged at the liquid outlet, a sleeve joint screw cover is arranged on the main body, the sleeve joint screw cover is connected with the main body through a caulking groove and can rotate around the main body, the caulking groove comprises a caulking groove section in the horizontal direction, the end opening of the horizontal caulking groove section is connected with a caulking groove in an inclined up-down direction, so that the sleeving screw cap can rotate between horizontal rotation and up-down rotation when rotating around the main body, the sleeving screw cap is provided with an opening blocking part which can move along with the sleeving screw cap, the opening blocking part is arranged at the liquid outlet, and the opening blocking part is used for blocking the liquid outlet. The opening is used for opening or closing the liquid outlet. According to the convenient bottom cover, the bottle opening of the bottle body can be placed upside down, so that a user can easily squeeze out fluid in the bottle conveniently and freshly, the cover only needs to be opened once, the user can squeeze the fluid immediately after taking the bottle and place the bottle after use, the cover does not need to be opened and closed every time, and the cover does not need to be closed for sealing when needed, and the convenience of the product is optimized to the maximum.
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Description

Technical Field

[0001] This application relates to the field of bottle caps for all squeeze-type bottles, and more particularly to a convenient rotating bottom cap with the cap opening facing down. Background Technology

[0002] Squeeze bottles have long been widely used in daily life, containing liquid personal care products such as shampoo, shower gel, dish soap, laundry detergent, and facial cleanser, as well as liquid condiments like ketchup, salad dressing, oyster sauce, and honey. However, existing products have many inconveniences: for example, it's difficult to use up the last bit of liquid; liquid residue can accumulate on the bottle opening over time; and most importantly, the cap needs to be opened and closed every time it's used, especially in the kitchen. If you're cooking several dishes at once, and each dish requires the condiment, opening and closing the cap is quite cumbersome. All of this clearly indicates that the market needs a new product that eliminates these inconveniences associated with squeezing bottles. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of many existing technologies and provide a convenient rotating bottom cap, making it convenient and comfortable to use squeeze-type bottles with this bottom cap, eliminating the previous troubles and inconveniences.

[0004] The technical solution of this utility model is implemented as follows: a convenient rotating bottom cap for connecting to a bottle body, the convenient bottom cap having a main body, a liquid outlet on the main body, a valve device at the liquid outlet, and a connecting screw cap on the main body. The connecting screw cap is connected to the main body through a groove and can rotate around the main body. The groove includes a horizontally oriented groove section, and the port of the horizontally oriented groove section is connected to an obliquely vertically oriented groove, so that the connecting screw cap can rotate between horizontal rotation and vertical rotation when rotating around the main body. The connecting screw cap has a stop portion, which is located at the liquid outlet. When the connecting screw cap rotates horizontally, the stop portion moves horizontally to open or close the liquid outlet. When the connecting screw cap rotates vertically, the stop portion moves vertically with the connecting screw cap.

[0005] Furthermore, the main body is a sealing cap, which includes an outer sealing cap and an inner sealing cap. The liquid outlet is located at the outward end of the inner sealing cap. The valve device at the liquid outlet has an outer end and a concave end. The outer end of the valve device is close to the liquid outlet. The concave end of the valve device is formed by extending from the outer end toward the bottle body. The distance between the outer end of the valve device and the baffle on the screw cap is less than the distance between the outer end and the concave end. A cross-shaped cut is provided in the middle of the concave end, so that when the valve device is subjected to force, the concave end of the valve device extends toward the liquid outlet. When the concave end extends out of the liquid outlet without obstruction, the cross-shaped cut opens.

[0006] Furthermore, both sides of the outer wall of the sealing cap have grooves. The starting section of the groove is a horizontal groove, and the end of the horizontal groove turns into an obliquely vertical groove. The inner wall of the sleeve cap is provided with a block, which is embedded in the groove, so that the sleeve cap can rotate around the outer wall of the sealing cap according to the groove direction.

[0007] Furthermore, the stop portion on the sleeve cap is a movable stop component, which is connected to the sleeve cap and can move up and down together with the sleeve cap. The sealing cap is provided with a push post, which is used to push the movable stop component to open or close the liquid outlet on the sealing cap.

[0008] Furthermore, the outer ring at the bottom end of the screw cap forms the support end of the convenient bottom cover, and the bottom end has an opening corresponding to the liquid outlet on the sealing cap.

[0009] Furthermore, the movable stop is a plate-shaped object, which is connected to the sleeve cap via a rotating shaft. The push post on the sealing cap is connected to the plate-shaped object and is used to push the plate-shaped object to rotate around the rotating shaft. The sleeve cap is provided with a stop post that limits the movement of the plate-shaped object.

[0010] Furthermore, each end of the sealing cap is provided with a push post, the movable stop is a long strip, and the inner wall of the bottom end of the sleeve cap is provided with a limiting frame. The long strip is located within the limiting frame and can slide back and forth within the limiting frame under the push of the push post.

[0011] Furthermore, the movable stop is located between the liquid outlet on the inner cover of the sealing cap and the opening on the bottom end of the sleeve cap.

[0012] Furthermore, the movable stop is provided with an opening, which corresponds to the liquid outlet on the inner cover of the sealing cap and the opening on the bottom end of the sleeve screw cap.

[0013] The beneficial effects of this utility model are: it provides a convenient rotating bottom cap, allowing the bottle to be placed upside down with the bottle opening facing downwards, enabling users to easily and hygienically squeeze out the fluid inside and use up the last drop. Furthermore, the liquid outlet extends downwards from the cap, making the liquid flow more refreshing. In particular, after the initial rotation to open the cap, subsequent uses can be made by simply picking up the bottle and squeezing, then putting it back down, eliminating the need to open and close the cap each time, thus optimizing the user experience. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0016] Figure 2 for Figure 1 The schematic diagram of the main components being separated in the embodiment is shown.

[0017] Figure 3 for Figure 1 The schematic diagram of the structure of the embodiment when it is connected to the bottle body and ready to open the liquid outlet.

[0018] Figure 4 for Figure 3 The diagram shows the structure when the liquid outlet is open.

[0019] Figure 5 for Figure 4 The diagram shows the structure after the liquid outlet extends downwards.

[0020] Figure 6 for Figure 5 The diagram shows the structural state in which the fluid inside the bottle flows outward when the bottle is compressed.

[0021] Figure 7 for Figure 5 The diagram shows the structure with the outlet closed.

[0022] Figure 8 This is a schematic diagram of another embodiment of the present invention.

[0023] Figure 9 for Figure 8 The schematic diagram of the main components being separated in the embodiment is shown.

[0024] Figure 10 for Figure 8The schematic diagram of the structure of the embodiment when it is connected to the bottle body and ready to open the liquid outlet.

[0025] Figure 11 for Figure 10 The diagram shows the structure when the liquid outlet is open.

[0026] Figure 12 for Figure 11 The diagram shows the structural state of the liquid outlet after it extends downwards.

[0027] Figure 13 for Figure 12 The diagram shows the structural state in which the fluid inside the bottle flows outward when the bottle is compressed.

[0028] Figure 14 for Figure 12 The diagram shows the structure with the outlet closed.

[0029] Figure 15 This is a schematic diagram of another embodiment of the present invention.

[0030] Figure 16 for Figure 15 The schematic diagram of the main components being separated in the embodiment is shown.

[0031] Figure 17 for Figure 15 The schematic diagram of the structure of the embodiment when it is connected to the bottle body and ready to open the liquid outlet.

[0032] Figure 18 for Figure 17 The diagram shows the structural state after the liquid outlet is opened and extended downwards.

[0033] Figure 19 for Figure 18 The diagram shows the structural state of the bottle being squeezed, causing the fluid inside to flow outwards. Implementation

[0034] The following descriptions of the embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments in which this application can be implemented. Directional terms used in this application, such as [up], [down], [front], [back], [left], [right], [inner], [outer], [side], etc., are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustrative and understanding purposes and not for limiting the application. In the figures, structurally similar units are represented by the same reference numerals.

[0035] like Figure 1As shown, this utility model provides a convenient rotating bottom cover. The convenient bottom cover has a main body 1, a liquid outlet 6 on the main body 1, a valve device 7 at the liquid outlet 6, and a connecting screw cap 2 on the main body 1. The connecting screw cap 2 is connected to the main body 1 through a groove and can rotate around the main body 1. The groove includes a horizontally oriented groove section 4, and the port of the horizontally oriented groove section 4 is connected to an obliquely vertically oriented groove 5, so that the connecting screw cap 2 can rotate between horizontal rotation and vertical rotation when rotating around the main body 1. The connecting screw cap 2 has a stop portion 8, which is located at the liquid outlet 6. When the connecting screw cap 2 rotates horizontally, the stop portion 8 moves horizontally to open or close the liquid outlet 6. When the connecting screw cap 2 rotates vertically, the stop portion 8 moves vertically with the connecting screw cap 2.

[0036] like Figure 1 , 2 As shown; in this embodiment, the main body 1 is a sealing cap, which includes an outer sealing cap portion 10 and an inner sealing cap portion 9. The liquid outlet 6 is located at the outward end of the inner sealing cap portion 9. The valve device 7 at the liquid outlet 6 is a silicone valve, which has an outer end 11 and a concave end 12. The outer end 11 of the valve device 7 is close to the liquid outlet 6, and the concave end 12 of the valve device 7 extends from the outer end 11 toward the bottle body with the cap attached. The distance between the outer end 11 of the valve device 7 and the baffle portion 8 on the screw cap 2 is less than the distance from the outer end 11 to the concave end 12. A cross-shaped notch 13 is provided in the middle of the concave end 12, so that when the valve device 7 is subjected to force, the concave end 12 of the valve device 7 extends toward the liquid outlet 6. When the concave end 12 extends out of the liquid outlet 6 without obstruction, the cross-shaped notch 13 will open. By comparing the distances between the outer end 11 and the concave end 12 of the valve device 7 and the baffle part 8, it is determined that when the baffle part 8 blocks the liquid outlet 6, the concave end 12 of the valve device 7 will definitely not be able to extend out of the liquid outlet 6, and the cross-shaped notch 13 in the middle of the concave end 12 will definitely not be able to open, thereby ensuring the sealing of the entire bottom cover. Figure 1In this invention, the stop portion on the sleeve cap 2 is a movable stop component, specifically a movable plate-shaped object 8. The outer ring of the bottom end of the sleeve cap 2 forms the support end 15 of the convenient bottom cover of this invention. An opening 16 corresponding to the liquid outlet 6 is opened on the bottom end. The movable plate-shaped object 8 is located between the liquid outlet 6 at the outer end of the inner cover part 9 of the sealing cap and the opening 16 at the bottom end of the sleeve cap 2. The plate-shaped object 8 is connected to the sleeve cap 2 through a rotating shaft 17 and can move up and down with the sleeve cap 2. The sealing cap is provided with a push post 14, which is inserted into the through groove 18 on the movable plate-shaped object 8 to push the movable plate-shaped object 8 to rotate around the rotating shaft 17, thereby opening or closing the liquid outlet 6 on the inner cover part 9 of the sealing cap. A stop post 19 is provided on the sleeve cap 2 to limit the movement of the plate-shaped object 8. A pad 20 is provided below the plate-shaped object 8 to make the plate-shaped object 8 more stable when rotating around the rotating shaft 17.

[0037] For example Figure 1 , 2 As shown: In this embodiment, there are grooves on both sides of the outer wall of the sealing cap 10. The starting section of the groove is a horizontal groove 4, and the end of the horizontal groove 4 turns into a diagonally up-down groove 5. There are two inserts 3 on the inner wall of the sleeve cap 2. The inserts 3 are embedded in the corresponding grooves, so that the sleeve cap 2 can rotate around the sealing cap 10 according to the groove direction. The rotation direction is that when opening the cap, the sleeve cap 2 first rotates horizontally and then diagonally upward. When closing the cap, it rotates back. The sleeve cap 2 first rotates diagonally downward and then rotates horizontally.

[0038] like Figure 3 , 4 As shown, the convenient bottom cover of this utility model is Figure 1 The embodiment described above is connected to the bottle body 31, with the bottom outer ring of the screw cap 2 serving as the support end 15. The bottle body 31 is placed upside down with the bottle mouth facing down. The movable plate 8 is located between the liquid outlet 6 at the outward end of the inner cap 9 of the sealing cap and the bottom opening 16 of the screw cap 2, blocking the liquid outlet 6 and also blocking the opening 16 corresponding to the liquid outlet 6, thus separating the opening 16 from the liquid outlet 6. Figure 3The bottom cover structure shown is in a sealed state. The bottle body 31 remains stationary, and the screw cap 2 is rotated clockwise to the left. The inserts 3 on both sides of the screw cap 2 slide clockwise to the left from the horizontal grooves 4 located on both sides of the outer cap 10 of the sealing cap. This causes the movable plate 8 connected to the screw cap 2 via the rotating shaft 17 to move clockwise horizontally with the screw cap 2. Meanwhile, the push post 14 on the sealing cap is inserted into the through groove 18 on the plate 8 and remains stationary. As a result, the side 21 of the through groove 18 is forced by the reaction force of the push post 14 to rotate the plate 8 counterclockwise horizontally around the rotating shaft 17 on the pad 20. This causes the plate 8 to begin to move away from the liquid outlet 6 and the opening 16. When the insert 3 rotates horizontally to the left to the end of the horizontal groove 4, the plate 8 is completely removed from the liquid outlet 6 and the opening 16. The liquid outlet 6 and the opening 16 are connected vertically to form a through hole. At this time, the liquid outlet is open. Figure 4 As shown.

[0039] like Figure 5 As shown, the screw cap 2 continues to rotate clockwise to the left, and the insert 3 moves from the horizontal end of the groove 4 into the obliquely vertical groove 5, so that the entire screw cap 2 rotates clockwise to the left while rotating upward, that is, it rotates and moves upward in the direction of the bottle. The opening 16 moves upward with the screw cap 2, and the liquid outlet 6 at the outer end of the inner cap 9 of the sealing cap extends downward from the opening 16. At this time, the plate 8 continues to rotate counterclockwise around the rotating shaft 17 under the reaction force of the pushing column 14 until it reaches the leftmost blocking column 19, thus completing the complete downward extension of the liquid outlet 6 outside the opening 16, and the bottle 31 is in the open and ready-to-squeeze state.

[0040] It should be noted that after the bottom cap of the bottle body 31 is opened, the liquid outlet 6 extends out of the opening 16, is located in the middle of the inner side of the bottom cap support end 15 and is suspended in the air, and does not contact the plane where the support end 15 is located. Because a silicone valve 7 is provided at the liquid outlet, the entire bottle body 31 is in a leak-proof, hygienic state when it is placed for use, and can be picked up and squeezed at any time, and then put away after squeezing, which is super convenient.

[0041] like Figure 6 As shown, when bottle 31 is in Figure 5 When the bottle is in the ready-to-use state, the user squeezes the bottle 31, and the silicone valve 7 at the outlet 6 is subjected to force and extends outward from the outlet 6. At this time, the outlet 6 has extended outward from the opening 16. The concave end 12 of the silicone valve 7 is subjected to force and extends outward from the outlet 6 without obstruction. The cross-shaped cut 13 in the middle of the concave end 12 opens, and the fluid 22 in the bottle 31 flows out.

[0042] It should be noted that when opening the lid, the screw cap rotates horizontally first and then diagonally upwards, and when closing the lid, the screw cap rotates diagonally downwards first and then horizontally. The entire opening and closing process involves continuous rotation in only one direction. For example, when opening the lid, it rotates clockwise, and when closing the lid, it rotates counterclockwise. Therefore, although the internal movement of the bottom cover of this invention involves several processes during use, for the user, it is as simple as turning the lid to open it and turning it back to close it, making it easy and convenient.

[0043] like Figure 7 As shown, to close the cap, rotate the screw cap 2 counterclockwise to the right. The insert 3 first rotates downwards from the oblique vertical direction towards the groove 5, moving away from the bottle body 31. Then, it rotates horizontally to the right along the groove 4 to the end. The plate 8 rotates downwards along the screw cap 2 around the pivot 17, then rotates horizontally clockwise until it is between the outlet 6 and the opening 16, completely separating and sealing the outlet 6 and the opening 16. At this point, the entire bottom cap returns to its original position. Figure 3 As shown in the structural state, the liquid outlet is closed, and the bottom cover of this utility model is completely sealed.

[0044] like Figure 8 , 9 As shown, in this embodiment, the sealing cap has a pusher 14 and a pusher 28 at each end, and the movable stop is a movable elongated block 23 with a hole 26. The two ends of the elongated block 23 are inclined sides 24 and 27, respectively. A limiting frame 25 is provided on the inner wall of the bottom end of the sleeve cap 2. The movable elongated block 23 is located within the limiting frame 25. The pusher 14 and the pusher 28 are used to push the inclined sides 24 and 27 respectively when the sleeve cap 2 rotates, so that the movable elongated block 23 slides back and forth within the limiting frame 25 to open or close the liquid outlet 6 and the bottom opening 16 of the sleeve cap 2.

[0045] like Figure 10 , 11 As shown in Figure 12, the bottle body 31 remains stationary and rotates clockwise to engage the screw cap 2. The insert 3 slides clockwise to the left within the horizontal groove 4. The movable strip 23 rotates clockwise along with the screw cap 2. The push post 14 on the right side of the sealing cap generates a reaction force that pushes the right inclined edge 24 of the strip 23, causing the strip 23 to move to the left within the limiting frame 25. The hole 26 moves to the left as well. When the insert 3 slides to the end of the horizontal groove 4, the hole 26 on the strip 23 moves between the liquid outlet 6 and the opening 16, thus forming a through hole. The liquid outlet 6 opens, as shown in Figure 12. Figure 11As shown. The screw cap 2 continues to rotate clockwise, and the insert 3 rotates into the groove 5 from the oblique up-down direction. The entire screw cap 2 rotates towards the bottle body 31. The outlet 6 extends downwards from the hole 26 on the long strip 23 and the opening 16 at the bottom of the screw cap 2. When the insert 3 slides into the end of the oblique up-down direction groove 5, the outlet 6 extends completely downwards from the opening 16, and the bottle body 31 is in an open, ready-to-use state. Figure 12 As shown.

[0046] like Figure 13 As shown, when bottle 31 is in Figure 12 When the bottle is in the ready-to-use state, the user squeezes the bottle 31, and the silicone valve 7 at the outlet 6 is forced to extend outward from the outlet 6. At this time, the outlet 6 has already extended outward from the bottom opening 16 of the sleeve cap 2. After being forced, the concave end 12 of the silicone valve 7 extends outward from the outlet 6 without obstruction, and the cross-shaped cut 13 in the middle of the concave end 12 opens, allowing the fluid 22 inside the bottle 31 to flow out.

[0047] like Figure 14 As shown, when the cap needs to be closed, rotate the screw cap 2 counterclockwise to the right. The insert 3 first rotates downwards from the oblique up-down direction towards the groove 5, moving away from the bottle body 31. Then, it rotates horizontally to the end along the groove 4. The long strip 23 first moves downwards with the screw cap 2. Then, under the reaction force of the left push column 28 of the sealing cap, the left oblique edge 27 is pushed. The entire long strip 23 moves to the right within the limiting frame 25, and the hole 26 moves to the right accordingly. Finally, the long strip 23 completely separates and blocks the liquid outlet 6 from the opening 16. At this time, the entire bottom cap returns to its original position. Figure 10 As shown in the structural state, the liquid outlet is closed, and the bottom cover of this utility model is completely sealed.

[0048] like Figure 15 As shown in Figure 16, in this embodiment, it is... Figure 1 In the embodiment shown, the movable plate 8 is provided with an opening 30 corresponding to the liquid outlet 6 and the opening 16 at the bottom of the sleeve cap 2, and a side groove 29 is provided on one side of the through groove 18 of the movable plate 8, which is used to push the column 14 to continue to rotate and move in space when the opening 30 and the opening 16 are extended under the liquid outlet 6.

[0049] like Figure 17 , 18As shown, the bottle body 31 remains stationary, and the screw cap 2 is rotated clockwise to the left. The insert 3 slides from the beginning of the horizontal path to the end of the groove 4, and then rotates diagonally up and down to the end of the groove 5. The screw cap 2 first rotates clockwise horizontally, and then rotates upward towards the bottle body 31. During this process, the plate 8 rotates counterclockwise around the rotating shaft 17 under the reaction force of the push column 14, and moves together with the screw cap 2. The opening 30 on the plate 8 first rotates between the liquid outlet 6 and the opening 16, and then moves upward with the screw cap 2. Then the liquid outlet 6 extends downward from the opening 30 and the opening 16, completing the opening and downward extension of the liquid outlet. The bottle body 31 is in the open and ready-to-use state.

[0050] like Figure 19 As shown, when the bottle body 31 in the squeeze-out state is squeezed, the concave end 12 of the silicone valve 7 at the fully extended outlet 6 is forced to extend outward from the outlet 6 without obstruction, and the cross-shaped cut 13 in the middle of the concave end 12 opens, allowing the fluid 22 inside the bottle to flow out.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rotating convenient bottom cap for connecting to a bottle body, the convenient bottom cap having a main body, the main body having a liquid outlet, and a valve device provided at the liquid outlet, characterized in that: The main body is provided with a connecting screw cap, which is connected to the main body through a groove and can rotate around the main body. The groove includes a horizontal groove section, and the port of the horizontal groove section is connected to an oblique vertical groove, so that the connecting screw cap can rotate into and out of the main body when rotating around the main body. The connecting screw cap is provided with a baffle, which is located at the liquid outlet. Furthermore, when the sleeve cap rotates horizontally, the baffle moves horizontally to open or close the liquid outlet; when the sleeve cap rotates up and down, the baffle moves up and down with the sleeve cap.

2. A rotating convenience bottom cover according to claim 1, characterized in that, The main body is a sealing cap, which includes an outer sealing cap and an inner sealing cap. The liquid outlet is located at the outward end of the inner sealing cap. The valve device at the liquid outlet has an outer end and a concave end. The outer end of the valve device is close to the liquid outlet. The concave end of the valve device is formed by extending from the outer end toward the bottle body. The distance between the outer end of the valve device and the baffle on the screw cap is less than the distance between the outer end and the concave end. A cross-shaped cut is provided in the middle of the concave end, so that when the valve device is subjected to force, the concave end of the valve device extends toward the liquid outlet. When the concave end extends out of the liquid outlet without obstruction, the cross-shaped cut opens.

3. A rotating convenience bottom cover according to claim 2, characterized in that, Both sides of the outer wall of the sealing cap have grooves. The starting section of the groove is a horizontal groove, and the end of the horizontal groove turns into an obliquely vertical groove. The inner wall of the sleeve cap is provided with a block, which is embedded in the groove, so that the sleeve cap can rotate around the outer wall of the sealing cap according to the groove direction.

4. A rotating convenience bottom cover according to claim 3, wherein The stop portion on the sleeve cap is a movable stop component, which is connected to the sleeve cap and can move up and down together with the sleeve cap. The sealing cap is provided with a push column, which is used to push the movable stop component to open or close the liquid outlet on the sealing cap.

5. A rotating convenience bottom cover according to claim 4, characterized in that, The outer ring at the bottom of the screw cap forms the support end of the convenient bottom cover, and an opening on the bottom end corresponds to the liquid outlet on the sealing cap.

6. A rotating convenience bottom cover according to claim 5, wherein, The movable stop is a plate-shaped object, which is connected to the sleeve cap via a rotating shaft. The push post on the sealing cap is connected to the plate-shaped object and is used to push the plate-shaped object to rotate around the rotating shaft. The sleeve cap is provided with a stop post that limits the movement of the plate-shaped object.

7. A rotating convenience bottom cover according to claim 5, wherein The sealing cap has a push post at each end of the outer cover, the movable stop is a long strip, and the bottom inner wall of the sleeve cap has a limiting frame. The long strip is located inside the limiting frame and can slide back and forth in the limiting frame under the push of the push post.

8. A rotating convenience bottom cover according to claim 6 or 7, characterized in that, The movable stop is located between the liquid outlet on the inner cover of the sealing cap and the opening on the bottom of the sleeve cap.

9. A rotating convenience bottom cover according to claim 8, characterized in that, The movable stop is provided with an opening, which corresponds to the liquid outlet on the inner cover of the sealing cap and the opening on the bottom end of the sleeve cap.