Safe left-hand thread ejection bottle cap assembly
By designing a safe, reverse-threaded ejector cap assembly, the problem of traditional beverage bottles being unable to adjust flavors has been solved, enabling flexible addition of seasonings and convenient drinking, thus improving the ease of use, safety, and environmental friendliness of beverage bottles.
Patent Information
- Application Number
- CN202520034766.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Traditional beverage bottle designs cannot meet consumers' personalized needs for different flavors and additives. Adding seasonings to beverages is inflexible, and the bottle cap structure is simple and lacks limiting and protection mechanisms, resulting in poor sealing, impurities entering, and waste of resources.
A safe reverse-threaded ejector bottle cap assembly was designed. Through the combination of a limiting cylinder, a threaded sleeve, and an ejector, it achieves separation and flexible addition of seasonings and beverages. It has multiple rotation restriction mechanisms to ensure sealing and convenient use.
It allows for flexible flavor adjustment during consumption, is easy to operate, prevents the sealing sticker from falling into the beverage bottle, ensures airtightness and environmental friendliness, and reduces environmental pollution and production costs.
Smart Images

Figure CN223591425U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of beverage packaging, specifically relating to a safe reverse-threaded ejector bottle cap assembly. Background Technology
[0002] In the beverage packaging industry, traditional beverage bottle designs have many limitations. Typically, the flavor of a beverage is fixed during production, failing to meet consumers' personalized needs for different flavors and additives. Furthermore, the methods for adding flavorings to beverages are not flexible enough; they are often mixed during the production process, making it impossible to decide when to add them based on personal preference at the time of consumption.
[0003] Traditional beverage bottle caps have a simple structure and limited function. If it is necessary to add seasonings or other substances to the beverage, the process is relatively complicated, or the seasonings may mix into the beverage prematurely, leading to spoilage or poor taste.
[0004] Furthermore, common bottle caps lack effective limiting and protective mechanisms during opening and use, which may lead to problems such as incomplete sealing, impurities entering the bottle, or parts detaching. At the same time, most beverage bottles are discarded after consumption and cannot be recycled, resulting in resource waste and environmental pollution.
[0005] In conclusion, in order to meet consumers' diverse needs for beverage flavors and improve the convenience, safety, and environmental friendliness of beverage bottles, there is an urgent need for an innovative, safe, reverse-threaded ejection cap assembly to address the shortcomings of existing technologies. Utility Model Content
[0006] The purpose of this invention is to provide a safe, reverse-threaded ejector bottle cap assembly to solve the problem mentioned in the background art of traditional beverages having a fixed flavor and being unable to adjust the flavor during drinking.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a safe reverse-threaded ejector bottle cap assembly, comprising a beverage bottle, wherein a connecting cap is threadedly connected to the upper opening of the beverage bottle, a switch knob is rotatably connected to the upper end of the connecting cap, and a sealing cap is provided inside the upper center of the switch knob.
[0008] Preferably, a limiting cylinder is fixedly connected inside the connecting cover. The upper end of the limiting cylinder protrudes outside the upper end of the connecting cover, and the lower end of the limiting cylinder penetrates inside the beverage bottle and fits against the inner wall of the beverage bottle opening. A sealing sticker is affixed to the lower end of the limiting cylinder.
[0009] Preferably, a limiting ring is fixedly connected to the upper outer side of the limiting cylinder, and the limiting ring is located on the upper side of the connecting cover. A limiting groove is opened inside the lower inner wall of the switch knob, and the switch knob is engaged with the upper outer side of the limiting cylinder through the limiting ring and the limiting groove, and is rotatably connected to the limiting cylinder.
[0010] Preferably, a threaded sleeve is fixedly connected inside the switch knob, and the threaded sleeve is inserted into the upper end of the limiting material cylinder, with a gap between it and the limiting material cylinder. The inner and outer walls of the threaded sleeve are both provided with threads, and the threads on the inner and outer walls are in opposite directions.
[0011] Preferably, the threaded sleeve is externally threaded with an ejector, which is located between the limiting cylinder and the threaded sleeve and fits against the inner wall of the limiting cylinder. Multiple outer limiting vertical bars are fixedly connected to the outer wall of the ejector, and multiple outer limiting vertical grooves are opened inside the inner wall of the limiting cylinder.
[0012] Preferably, the multiple outer limiting vertical bars are respectively engaged inside the multiple outer limiting vertical grooves and are slidably connected to the multiple outer limiting vertical grooves. The lower end of the ejector has a piercing notch. The threaded sleeve is threadedly connected to the drinking bottle neck, and the sealing cap is threadedly connected to the upper end of the drinking bottle neck.
[0013] Preferably, a plurality of inner limiting vertical bars are fixedly connected to the lower outer wall of the drinking bottle neck, and a plurality of inner limiting vertical grooves are opened inside the inner wall of the ejector, and the plurality of inner limiting vertical bars are respectively engaged in the interior of the plurality of inner limiting vertical grooves and slidably connected with the plurality of inner limiting vertical grooves.
[0014] Compared with the prior art, this utility model provides a safe reverse-threaded ejection bottle cap assembly, which has the following beneficial effects:
[0015] 1. The unique design of this utility model separates the seasoning from the beverage. When needed, the seasoning can be added to the beverage by turning the switch knob, and when not needed, the connecting cap can be unscrewed for direct consumption, satisfying different taste preferences.
[0016] 2. The reverse thread design of the inner and outer walls of the threaded sleeve of this utility model allows the ejector to pierce the sealing sticker downwards and let the seasoning fall into the beverage when the switch knob is turned, while the bottle neck is turned upwards, making operation convenient.
[0017] 3. The ejector of this utility model can only move up and down due to the restriction of the outer limiting vertical bar and the outer limiting vertical groove, which ensures that it can accurately pierce the sealing sticker, and prevents the sealing sticker from being completely pierced by the piercing notch, thus avoiding the sealing sticker from falling into the beverage bottle and causing blockage.
[0018] 4. The drinking bottle neck of this utility model is restricted in position by the inner limiting vertical bar and the inner limiting vertical groove, and can only move up and down, ensuring that it can be turned out from the switch knob for normal drinking.
[0019] 5. This utility model has multiple rotation restriction mechanisms to ensure that the seasoning will not leak when not in use, and that the ejector will not detach from the threaded sleeve and fall into the bottle when in use.
[0020] 6. The components of this bottle cap assembly are tightly connected and will not be damaged after the beverage is opened. After drinking, it can be completely recycled, disinfected and reused, reducing environmental pollution and production costs. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the bottle cap assembly of this utility model.
[0022] Figure 2 This is a schematic diagram of the bottle cap assembly of this utility model in the retracted state.
[0023] Figure 3 This is a schematic diagram of the unfolded structure of the bottle cap assembly of this utility model.
[0024] Figure 4 This is a schematic diagram of the limiting cylinder connection structure of this utility model.
[0025] Figure 5 This is a schematic diagram of the threaded sleeve connection structure of this utility model.
[0026] Figure 6 This is a schematic diagram of the ejector connection structure of this utility model.
[0027] Figure 7 This is a schematic diagram of the drinking bottle neck connection structure of this utility model.
[0028] In the diagram: 1. Beverage bottle; 2. Connecting cap; 3. Switch knob; 4. Sealing cap; 5. Limiting cylinder; 6. Sealing sticker; 7. Limiting ring; 8. Limiting groove; 9. Threaded sleeve; 10. Ejector; 11. Outer limiting vertical bar; 12. Outer limiting vertical groove; 13. Puncture notch; 14. Bottle neck; 15. Inner limiting vertical bar; 16. Inner limiting vertical groove. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] This utility model provides, for example Figures 1-7The illustrated safety reverse-threaded ejector bottle cap assembly includes a beverage bottle 1. A connecting cap 2 is threadedly connected to the upper opening of the beverage bottle 1. A switch knob 3 is rotatably connected to the upper end of the connecting cap 2. A sealing cap 4 is disposed inside the center of the upper end of the switch knob 3. A limiting cylinder 5 is fixedly connected inside the connecting cap 2. The upper end of the limiting cylinder 5 protrudes outside the upper end of the connecting cap 2, and the lower end of the limiting cylinder 5 penetrates inside the beverage bottle 1 and fits against the inner wall of the opening of the beverage bottle 1. A sealing sticker 6 is affixed to the lower end of the limiting cylinder 5. A threaded sleeve 9 is fixedly connected inside the switch knob 3 and is inserted into the upper end of the limiting cylinder 5, leaving a gap between the threaded sleeve 9 and the limiting cylinder 5. An ejector 10 is threadedly connected to the outside of the threaded sleeve 9, and the ejector 10 is located between the limiting cylinder 5 and the threaded sleeve 9 and fits against the inner wall of the limiting cylinder 5. A drinking bottle neck 14 is threadedly connected inside the threaded sleeve 9. The sealing cap 4 is threadedly connected to the upper end of the drinking bottle neck 14. After the beverage is filled into the beverage bottle 1, the connecting cap 2 is screwed onto the opening at the upper end of the beverage bottle 1, and a seal is placed on the outside of the connecting cap 2. The connecting cap 2 contains seasonings, which are located inside the drinking bottle neck 14 and sealed inside the drinking bottle neck 14 by the sealing sticker 6. When you want to drink the beverage, tear off the seal and turn the switch knob 3. The switch knob 3 can drive the ejector 10 to move downward through the threaded connection between the threaded sleeve 9 and the ejector 10, and pierce the sealing sticker 6 through the blade at the lower end of the ejector 10, allowing the seasoning inside the drinking bottle neck 14 to fall into the beverage inside the beverage bottle 1. At the same time, the switch knob 3 can rotate the upper end of the drinking bottle neck 14 out of the switch knob 3 through the threaded connection between the threaded sleeve 9 and the drinking bottle neck 14, thereby exposing the sealing cap 4. After unscrewing the sealing cap 4, you can drink the beverage.
[0031] Preferably, a limiting ring 7 is fixedly connected to the upper outer side of the limiting cylinder 5, and the limiting ring 7 is located on the upper side of the connecting cover 2. A limiting groove 8 is opened inside the lower inner wall of the switch knob 3, and the switch knob 3 is engaged with the upper outer side of the limiting cylinder 5 through the limiting ring 7 and the limiting groove 8, and is rotatably connected to the limiting cylinder 5. The inner and outer walls of the threaded sleeve 9 are both provided with threads, and the threads on the inner and outer walls are in opposite directions. During the rotation of the switch knob 3, the switch knob 3 can limit the position between itself and the limiting cylinder 5 through the limiting ring 7 and the limiting groove 8, and limit the position of the threaded sleeve 9. Since the threads on the inner and outer walls of the threaded sleeve 9 are in opposite directions, and the ejector 10 is threadedly connected to the outside of the threaded sleeve 9, and the drinking bottle neck 14 is threadedly connected to the inside of the threaded sleeve 9, when the switch knob 3 is rotated, the ejector 10 and the drinking bottle neck 14 will move downward and upward respectively, and the ejector 10 will pierce the sealing sticker 6, and the drinking bottle neck 14 will be used for drinking.
[0032] Preferably, multiple outer limiting vertical bars 11 are fixedly connected to the outer wall of the ejector 10, and multiple outer limiting vertical grooves 12 are opened inside the inner wall of the limiting cylinder 5. The multiple outer limiting vertical bars 11 are respectively engaged inside the multiple outer limiting vertical grooves 12 and are slidably connected with the multiple outer limiting vertical grooves 12. A piercing notch 13 is opened inside the lower end of the ejector 10. Since the ejector 10 can limit the position between itself and the limiting cylinder 5 through the outer limiting vertical bars 11 and the outer limiting vertical grooves 12, the ejector 10 can only move up and down and will not rotate with the threaded sleeve 9. This ensures that the ejector 10 can pierce the sealing sticker 6. During the process of the ejector 10 piercing the sealing sticker 6, the piercing notch 13 prevents the sealing sticker 6 from being completely pierced. This allows the sealing sticker 6 to remain connected to the bottom of the limiting cylinder 5 while being pierced, preventing the sealing sticker 6 from falling into the beverage bottle 1 and avoiding the sealing sticker 6 being sucked into the neck of the drinking bottle 14 and causing blockage.
[0033] Preferably, multiple inner limiting vertical bars 15 are fixedly connected to the lower outer wall of the drinking bottle neck 14, and multiple inner limiting vertical grooves 16 are opened inside the inner wall of the ejector 10. The multiple inner limiting vertical bars 15 are respectively engaged inside the multiple inner limiting vertical grooves 16 and are slidably connected with the multiple inner limiting vertical grooves 16. Since the drinking bottle neck 14 can restrict the position between itself and the ejector 10 through the inner limiting vertical bars 15 and the inner limiting vertical grooves 16, the drinking bottle neck 14 can only move up and down and will not rotate with the threaded sleeve 9, ensuring that the sealing cap 4 and the drinking bottle neck 14 can be screwed out from the inside of the switch knob 3, ensuring that the beverage can be consumed normally.
[0034] Preferably, when the sealing cap 4 and the drinking bottle neck 14 are fully retracted inside the switch knob 3, the sealing cap 4 cannot be unscrewed from the top of the drinking bottle neck 14. At the same time, the ejector 10 cannot continue to move upward under the restriction of the outer limiting vertical bar 11 and the outer limiting vertical groove 12, thereby restricting the rotation of the switch knob 3 and preventing the lower end of the drinking bottle neck 14 from piercing the sealing sticker 6, ensuring that the seasoning will not leak. When the sealing cap 4 and the drinking bottle neck 14 are fully screwed out of the switch knob 3, the inner limiting vertical bar 15 will block the lower end of the threaded sleeve 9, thereby restricting the rotation of the switch knob 3 again, preventing the ejector 10 from disengaging from the threaded sleeve 9, and ensuring that the ejector 10 will not fall into the beverage bottle 1.
[0035] Preferably, since the connecting cap 2 is connected to the beverage bottle 1 by bolts, and the switch knob 3 is connected to the connecting cap 2 by the limiting cylinder 5, the ejector 10 and the drinking bottle neck 14 are connected to the switch knob 3 by the threaded sleeve 9, and the sealing cap 4 is connected to the drinking bottle neck 14 by threads, the bottle cap assembly can be completely recycled after the beverage is consumed and can be reused after disinfection. This reduces environmental pollution and production costs. Furthermore, the beverage can be consumed directly by unscrewing the connecting cap 2, and condiments can be added according to personal preference.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. A safety reverse-threaded ejector bottle cap assembly, characterized in that, Includes a beverage bottle (1), with a connecting cap (2) threadedly connected to the upper opening of the beverage bottle (1), and a switch knob (3) rotatably connected to the upper end of the connecting cap (2), and a sealing cap (4) is provided inside the upper center of the switch knob (3).
2. The safety reverse-threaded ejector cap assembly according to claim 1, characterized in that: The connecting cover (2) is fixedly connected to a limiting cylinder (5). The upper end of the limiting cylinder (5) protrudes outside the upper end of the connecting cover (2), and the lower end of the limiting cylinder (5) penetrates inside the beverage bottle (1) and fits against the inner wall of the opening of the beverage bottle (1). A sealing sticker (6) is pasted on the lower end of the limiting cylinder (5).
3. The safety reverse-threaded ejector cap assembly according to claim 2, characterized in that: A limiting ring (7) is fixedly connected to the upper side of the limiting cylinder (5), and the limiting ring (7) is located on the upper side of the connecting cover (2). A limiting groove (8) is opened inside the lower inner wall of the switch knob (3), and the switch knob (3) is snapped onto the upper outer side of the limiting cylinder (5) through the limiting ring (7) and the limiting groove (8), and is rotatably connected to the limiting cylinder (5).
4. A safety reverse-threaded ejector cap assembly according to claim 3, characterized in that: The switch knob (3) is fixedly connected to a threaded sleeve (9), which is inserted into the upper end of the limiting cylinder (5) and leaves a gap between it and the limiting cylinder (5). The inner and outer walls of the threaded sleeve (9) are both provided with threads, and the threads on the inner and outer walls are in opposite directions.
5. A safety reverse-threaded ejector cap assembly according to claim 4, characterized in that: The threaded sleeve (9) is externally threaded with an ejector (10), and the ejector (10) is located between the limiting cylinder (5) and the threaded sleeve (9), and is in contact with the inner wall of the limiting cylinder (5). Multiple outer limiting vertical bars (11) are fixedly connected to the outer wall of the ejector (10), and multiple outer limiting vertical grooves (12) are opened inside the inner wall of the limiting cylinder (5).
6. A bottle cap assembly with a safe reverse thread ejection according to claim 5, characterized in that: Multiple outer limiting vertical bars (11) are respectively snapped into multiple outer limiting vertical grooves (12) and slidably connected with multiple outer limiting vertical grooves (12). The lower end of the ejector (10) is provided with a piercing notch (13). The threaded sleeve (9) is threadedly connected to the drinking bottle neck (14), and the sealing cap (4) is threadedly connected to the upper end of the drinking bottle neck (14).
7. A safety reverse-threaded ejector bottle cap assembly according to claim 6, characterized in that: Multiple inner limiting vertical strips (15) are fixedly connected to the lower outer wall of the drinking bottle neck (14). Multiple inner limiting vertical grooves (16) are opened inside the inner wall of the ejector (10), and the multiple inner limiting vertical strips (15) are respectively engaged in the multiple inner limiting vertical grooves (16) and slidably connected with the multiple inner limiting vertical grooves (16).