Tail-pressed circular all-plastic replaceable fresh-keeping bottle and replaceable package thereof

Abstract

The tail-pressed round all-plastic replaceable fresh-keeping bottle comprises an outer bottle body and an inner bottle body, the inner bottle body is located in the outer bottle body, the upper end of the inner bottle body is connected with a piston, the bottom of the outer bottle body is in threaded connection with a turning cover, the upper end of the outer bottle body is connected with an elastic body, and the bottom end of the inner bottle body is in airtight fit with the inner bottom of the outer bottle body. When the shoulder portion of the upper end of the fresh-keeping bottle is matched with the opening portion of the outer bottle through the turning cover, the inner bottle is pressed to form a close-fitting assembly, the elastic body is in interference fit with the lower bottom end of the outer bottle, the upper end of the outer bottle is provided with an outer installation groove corresponding to the elastic body, the inner wall of the upper end of the outer bottle is provided with an inner installation groove corresponding to the inner bottle, and the upper end of the outer bottle is further provided with a through hole. In the using process of the filled material body, air is isolated all the time, the fresh-keeping effect is effectively achieved, the inner bottle in the fresh-keeping bottle can be reused, the product cost is reduced, the utilization rate of the packaging material is increased, consumers can use the packaging material conveniently, and the consumer packaging requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bottles, in particular to a tail-pressed circular all-plastic replaceable fresh-keeping bottle and a replacement package thereof. Background Art

[0002] As consumers' awareness of environmental protection continues to increase, the cosmetic packaging market has a more prominent demand for environmentally friendly and reusable packaging materials. Some parts of cosmetic packaging materials can be reused, which not only reduces the cost of the product, but also improves the utilization rate of packaging materials, is convenient for consumers to use, and meets consumer packaging needs. Therefore, a packaging that can isolate air to preserve freshness and facilitate the replacement of filling material parts is needed. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a tail-pressed circular all-plastic replaceable fresh-keeping bottle, comprising an outer bottle and an inner bottle, the inner bottle is located inside the outer bottle, the upper end of the inner bottle is connected to a piston, the bottom of the outer bottle is threadedly connected to a flip cover, the upper end of the outer bottle is connected to an elastomer, and the bottom end of the inner bottle is airtightly matched with the inner bottom of the outer bottle.

[0004] Preferably, when the upper shoulder of the fresh-keeping bottle is matched by the flip cover and the outer bottle mouth, the inner bottle is pressed to form a tight-fitting assembly, and the elastic body is interference-fitted with the lower bottom of the outer bottle.

[0005] Preferably, an outer mounting groove is arranged at the upper end of the outer bottle corresponding to the elastic body, an inner mounting groove is arranged at the inner wall of the upper end of the outer bottle corresponding to the inner bottle, and a through hole is also arranged at the upper end of the outer bottle.

[0006] Preferably, the outer side of the elastic body is circular, an air hole is provided at the center of the elastic body, and a flange is provided at the outer edge of the bottom of the elastic body.

[0007] Preferably, the elastomer is made of PP or TPR material.

[0008] Preferably, the flip cover comprises a fixed part and a movable part, the fixed part is threadedly connected to the outer bottle, a plug hole is arranged in the middle of the fixed part, and a card slot is arranged on the inner wall of the movable part.

[0009] A replacement package for a tail-pressed round all-plastic replaceable fresh-keeping bottle comprises an inner bottle and is applied to the fresh-keeping bottle.

[0010] Preferably, a liquid outlet is arranged at one end of the inner bottle body, a bottle mouth is arranged at the other end of the bottle body, a piston is arranged at the bottle mouth, and the bottom of the bottle body is interference fit with the bottom cover.

[0011] Preferably, the inner bottle comprises a bottle body, one end of the bottle body is provided with a liquid outlet, and a heat-sealing film is provided at the liquid outlet.

[0012] Preferably, the inner bottle comprises a bottle body, one end of the bottle body is provided with a liquid outlet, and a silicone cross valve is provided at the liquid outlet.

[0013] Technical effects and advantages of the utility model:

[0014] In the utility model, the material body after filling is always isolated from the air during use, which effectively plays a role in preserving freshness. The inner bottle in the fresh-keeping bottle can be reused, which not only reduces the cost of the product, but also improves the utilization rate of the packaging material, is convenient for consumers to use, and meets consumer packaging needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an exploded view of the fresh-keeping bottle provided in an embodiment of the present application;

[0016] Figure 2 It is a structural schematic diagram of a fresh-keeping bottle provided in an embodiment of the present application;

[0017] Figure 3 is a cross-sectional view of a fresh-keeping bottle provided in an embodiment of the present application;

[0018] Figure 4 The fresh-keeping bottle provided in the embodiment of the present application Figure 3 A schematic diagram of the structure enlargement at the center A;

[0019] Figure 5 The fresh-keeping bottle provided in the embodiment of the present application Figure 3 A schematic diagram of the structure enlarged at B in the middle;

[0020] Figure 6 It is a schematic diagram of the structure of the replacement device provided in Example 1 of the present application;

[0021] Figure 7 It is a schematic diagram of the structure of the replacement device provided in Example 1 of the present application;

[0022] Figure 8 It is a schematic diagram of the structure of the replacement device provided in Example 2 of the present application.

[0023] In the figure: 1. outer bottle; 11. outer mounting groove; 12. through hole; 13. inner mounting groove; 2. inner bottle; 21. bottle body; 22. liquid outlet; 23. bottle cap; 24. bottom cover; 25. heat sealing film; 3. flip cover; 31. fixed part; 32. movable part; 33. slot; 34. jack; 4. elastic body; 41. air hole; 42. flange; 5. piston. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0025] See also Figures 1 to 3 As shown, in this embodiment, a tail-pressed circular all-plastic replaceable fresh-keeping bottle is provided, comprising an outer bottle 1 and an inner bottle 2, both of which are made of PP material. The inner bottle 2 is located inside the outer bottle 1, and the inner bottle 2 is used to contain a material body. The bottom of the outer bottle 1 is threadedly connected to a flip cover 3, which is made of PP material. The upper end of the inner bottle 2 is connected to a piston 5, which is made of PE material. The upper end of the outer bottle 1 is connected to an elastomer 4, and the outer side of the elastomer 4 is circular. The elastomer 4 is made of PP or TPR material. The bottom end of the inner bottle 2 is airtightly matched with the inner bottom of the outer bottle 1. When the shoulder at the lower end of the fresh-keeping bottle is matched by the flip cover 3 and the mouth of the outer bottle 1, the inner bottle 2 is pressed to form a tight-fitting component. The elastomer 4 is double-shot molded, and the elastomer 4 is interference-fitted with the upper end of the outer bottle 1 to form a complete bottle product.

[0026] After filling the material, the consumer opens the flip cover 3, holds the outer bottle 1 with the bottle mouth facing downward, and presses the central air hole 41 of the elastic body 4 with the fingers holding the outer bottle 1. The air hole 41 is blocked while the fingers touch. The elastic body 4 is deformed after being pressed, resulting in an increase in internal air pressure. The increased air pressure pushes the piston 5 to move and pushes the liquid out. When the fingers are lifted, the elastic body 4 restores its shape, and the outside air quickly enters from the air hole 41. The piston 5 will not retreat due to the friction with the inner bottle 2. In this way, a liquid discharge operation is completed. During the use of the filled material, the air is always isolated, which effectively plays a role in preservation. The inner bottle 2 in the fresh-keeping bottle can be reused, which not only reduces the cost of the product, but also improves the utilization rate of the packaging material, is convenient for consumers to use, and meets consumer packaging needs.

[0027] Specifically, in this embodiment, refer to Figure 4 As shown, an outer mounting groove 11 is provided at the upper end of the outer bottle 1 corresponding to the elastomer 4, the bottom of the elastomer 4 is inserted into the outer mounting groove 11, a flange 42 is provided at the outer edge of the bottom of the elastomer 4, the flange 42 enters the outer mounting groove 11, the elastomer 4 is installed on the outer bottle 1, an inner mounting groove 13 is provided on the inner wall of the upper end of the outer bottle 1 corresponding to the inner bottle 2, the top of the inner bottle 2 is inserted into the inner mounting groove 13, and a through hole 12 is also provided at the upper end of the outer bottle 1. When the elastomer 4 is pressed, air enters the piston 5 from the through hole 12, and the piston 5 moves along the inner bottle 2.

[0028] Furthermore, the piston 5 is circular in shape, with large outer diameters at the upper and lower ends and a small size in the middle. The upper and lower sides have an interference fit with the inner bottle 2 of a certain size to meet the airtight requirement. When the piston 5 is located on the outside of the elastomer 4 and the air pressure acts, the piston 5 together with the liquid is pushed toward the liquid outlet, and a new moving position is reached after the pressure difference is balanced.

[0029] In this embodiment, see Figure 5 As shown, the flip cover 3 includes a fixed part 31 and a movable part 32. The fixed part 31 is threadedly connected to the outer bottle 1. A plug hole 34 is provided in the middle of the fixed part 31. The plug hole 34 is used to insert the liquid outlet 22. The inner wall of the movable part 32 is provided with a slot 33. The slot 33 is used to block the outside of the liquid outlet 22 to prevent the material from flowing out of the liquid outlet 22.

[0030] In another embodiment, a replacement package of a round plastic fresh-keeping bottle with a tail pressing function is provided, see Figure 6-7 As shown, the inner bottle 2 includes a bottle body 21, a liquid outlet 22 is provided at one end of the bottle body 21, a bottle mouth is provided at the other end of the bottle body 21, a piston 5 is provided at the bottle mouth, the bottom of the bottle body 21 is interference fit with the bottom cover 24, which is used to support and protect the piston 5, and the bottle body 21 is provided with a bottle cap 23 at the liquid outlet 22, which has a blocking effect on the liquid outlet 22 and is suitable for use with materials with poor fluidity.

[0031] In another embodiment, see Figure 8 As shown, the inner bottle 2 includes a bottle body 21, a liquid outlet 22 is provided at one end of the bottle body 21, and a heat-sealing film 25 is provided at the liquid outlet 22. The heat-sealing film 25 seals the liquid outlet 22, and is suitable for materials with strong or poor fluidity.

[0032] In another embodiment, the inner bottle 2 includes a bottle body 21 , a liquid outlet 22 is disposed at one end of the bottle body 21 , and a silicone cross valve is disposed at the liquid outlet 22 , which is suitable for use with materials with strong fluidity.

[0033] The working principle of the utility model is:

[0034] After filling the material, the consumer opens the flip cover 3, holds the outer bottle 1 with the bottle mouth facing downward, and presses the central air hole 41 of the elastic body 4 with the fingers holding the outer bottle 1. The air hole 41 is blocked while the fingers touch. The elastic body 4 is deformed after being pressed, resulting in an increase in internal air pressure. The increased air pressure pushes the piston 5 to move and pushes the liquid out. When the fingers are lifted, the elastic body 4 restores its shape, and the outside air quickly enters from the air hole 41. The piston 5 will not retreat due to the friction with the inner bottle 2. In this way, a liquid discharge operation is completed. During the use of the filled material, the air is always isolated, which effectively plays a role in preserving freshness.

[0035] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A round, fully plastic, replaceable fresh-keeping bottle with a tail-pressing feature, The fresh-keeping bottle comprises an outer bottle and an inner bottle, wherein the inner bottle is located inside the outer bottle, the upper end of the inner bottle is connected to a piston, the bottom of the outer bottle is threadedly connected to a flip cover, the upper end of the outer bottle is connected to an elastic body, the bottom end of the inner bottle is airtightly matched with the inner bottom of the outer bottle, when the shoulder at the upper end of the fresh-keeping bottle is matched by the flip cover and the mouth of the outer bottle, the inner bottle is pressed to form a tight-fitting component, the elastic body is interference-fitted with the lower bottom end of the outer bottle, the upper end of the outer bottle is provided with an outer mounting groove corresponding to the elastic body, the inner wall of the upper end of the outer bottle is provided with an inner mounting groove corresponding to the inner bottle, and the upper end of the outer bottle is also provided with a through hole.

2. A tail-pressed round all-plastic replaceable fresh-keeping bottle according to claim 1, characterized in that: The outer side of the elastic body is circular, an air hole is opened at the center of the elastic body, and a flange is arranged at the outer edge of the bottom of the elastic body.

3. A tail-pressed round all-plastic replaceable fresh-keeping bottle according to claim 2, characterized in that: The elastic body is made of PP or TPR material.

4. The tail-pressed round all-plastic replaceable fresh-keeping bottle according to claim 1, characterized in that: The flip cover comprises a fixed part and a movable part, wherein the fixed part is threadedly connected to the outer bottle, a plug hole is arranged in the middle of the fixed part, and a card slot is arranged on the inner wall of the movable part.

5. A replacement package for the tail-pressed round all-plastic replaceable fresh-keeping bottle according to any one of claims 1 to 4, characterized in that: The inner bottle comprises a bottle body, one end of the bottle body is provided with a liquid outlet, the other end of the bottle body is provided with a bottle mouth, a piston is provided at the bottle mouth, and the bottom of the bottle mouth of the bottle body is interference fit with the bottom cover.

6. A replacement pack according to claim 5, characterized in that: A heat sealing film is arranged at the liquid outlet.

7. A replacement pack according to claim 5, characterized in that: A silicone cross valve is arranged at the liquid outlet.

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