A packaging bottle with replaceable welding bags

Abstract

This utility model relates to a packaging bottle with a replaceable welding bag. The key technical features are: a top cap, an inner cap, a bottle body, a valve module, a pressing module, and a welding bag for holding materials; the top cap covers the upper end of the inner cap; the lower end of the inner cap covers the bottle body to form a receiving cavity for holding the welding bag; the welding bag is detachably connected to the bottom of the inner cap; the inner cap has an installation cavity; the valve module is detachably installed in the installation cavity; the inner cap has a discharge nozzle; the valve module communicates with both the discharge nozzle and the welding bag; the pressing module is installed on one side of the inner cap; the detachable welding bag design enables the reuse of the packaging bottle, reducing usage costs and resource waste.

Description

Technical Field

[0001] This utility model relates to the field of packaging bottle technology, and more specifically, it relates to a packaging bottle with a replaceable welded bag. Background Technology

[0002] In the fields of cosmetics, pharmaceuticals, and daily necessities, liquid or paste-like materials are often packaged in bottles with inner bags to ensure the airtightness and cleanliness of the materials. However, existing packaging bottles of this type have several shortcomings: First, the inner bag (mostly a welded bag) is usually fixedly connected to the bottle body or inner cap. When the internal material is used up, the entire packaging bottle must be discarded together, and the inner bag cannot be replaced separately. This not only wastes resources but also increases the user's operating costs, which is inconsistent with the trend of energy conservation and environmental protection. Second, the discharge control structure of some packaging bottles is poorly designed, which can easily lead to material backflow, resulting in secondary contamination of the material and affecting the safety of use. Third, the valve components of traditional packaging bottles are mostly integrated designs. Once the valve malfunctions, the entire packaging bottle must be replaced, resulting in high maintenance and replacement costs. Fourth, the structure of the dispensing nozzle often does not fully consider ergonomic design, resulting in poor fit when in contact with human skin and easy leakage of material, affecting the user experience. Therefore, a new packaging bottle with a replaceable welded bag is proposed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a packaging bottle with a replaceable welding bag to solve the technical problems existing in the background art.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a packaging bottle with a replaceable welding bag, comprising: a top cap, an inner cap, a bottle body, a valve module, a pressing module, and a welding bag for placing materials; the top cap covers the upper end of the inner cap; the lower end of the inner cap covers the bottle body to form a receiving cavity for holding the welding bag; the welding bag is detachably connected to the bottom of the inner cap; the inner cap is provided with an installation cavity; the valve module is detachably installed in the installation cavity; the inner cap is provided with a discharge nozzle; the valve module is connected to the discharge nozzle and the welding bag respectively; the pressing module is installed on one side of the inner cap.

[0005] Optionally, the valve assembly includes: a valve body and two one-way valves; the valve body is detachably installed in the mounting cavity; the feed end of the valve body is connected to the welding bag through one of the one-way valves; the discharge end of the valve body is connected to the discharge nozzle through the other one-way valve; a pressing channel adapted to the pressing module is provided in the middle of the valve body; the pressing channel is connected to the internal channel of the valve body.

[0006] Optionally, the pressing module includes: a rubber head and a button; the rubber head is disposed at the end of the pressing channel away from the valve body and located inside the mounting cavity; the button is installed on the outside of the rubber head, and its pressing end passes through the side wall of the inner cover and is located on the outside of the inner cover.

[0007] Optionally, the inner cover includes: an upper shell and a lower shell; the upper shell and the lower shell are interlocked to form the mounting cavity; the welding bag is detachably connected to the bottom of the lower shell; the lower shell has a discharge hole for connecting a valve and the welding bag; the discharge nozzle is installed on the upper shell and is connected to the valve body through another valve.

[0008] Optionally, a base is provided at the bottom of the bottle.

[0009] Optionally, the discharge end of the discharge nozzle is provided with an arc-shaped structure that conforms to human skin.

[0010] This utility model achieves the reuse of packaging bottles through a detachable welded bag design, reducing usage costs and resource waste; the bidirectional one-way valve effectively prevents material backflow and ensures material cleanliness; the press module's structural design makes material discharge more convenient and precise; the arc-shaped structure of the discharge nozzle improves user comfort; the detachable design of the inner cap and the detachable connection of each component facilitate future maintenance and component replacement; the overall structure is reasonable and highly practical. Attached Figure Description

[0011] Figure 1 This is an assembly drawing of this utility model; Figure 2 yes Figure 1 A sectional view; Figure 3 This is a schematic diagram showing the positional relationship between the discharge nozzle and the inner cover in this utility model; Figure 4 This is an exploded view of this utility model.

[0012] In the diagram: 1. Top cap; 2. Inner cap; 21. Upper shell; 22. Lower shell; 3. Bottle body; 4. Valve module; 41. Valve body; 42. One-way valve; 5. Pressing module; 51. Rubber head; 52. Button; 6. Welded bag; 7. Receiving cavity; 8. Mounting cavity; 9. Discharge nozzle; 10. Base; 11. Arc-shaped structure. Detailed Implementation

[0013] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0014] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0015] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] like Figure 1-4 As shown, this utility model provides a packaging bottle with a replaceable welding bag 6, including: a top cover 1, an inner cover 2, a bottle body 3, a valve module 4, a pressing module 5, and a welding bag 6 for placing materials; the top cover 1 covers the upper end of the inner cover 2; the lower end of the inner cover 2 covers the bottle body 3 to form a receiving cavity 7 for holding the welding bag 6; the welding bag 6 is detachably connected to the bottom of the inner cover 2; the inner cover 2 is provided with an installation cavity 8; the valve module 4 is detachably installed in the installation cavity 8; the inner cover 2 is provided with a discharge nozzle 9; the valve module 4 is connected to the discharge nozzle 9 and the welding bag 6 respectively; the pressing module 5 is installed on one side of the inner cover 2; the overall structure is stable and easy to install. Through the design of the detachable welding bag 6, the packaging bottle can be reused, reducing usage costs and resource waste.

[0018] Furthermore, the valve assembly includes: a valve body 41 and two one-way valves 42; the valve body 41 is detachably installed in the mounting cavity 8; the feed end of the valve body 41 is connected to the welding bag 6 through one of the one-way valves 42; the discharge end of the valve body 41 is connected to the discharge nozzle 9 through the other one-way valve 42; a pressing channel adapted to the pressing module 5 is provided in the middle of the valve body 41; the pressing channel is connected to the internal channel of the valve body 41.

[0019] In this embodiment, as Figure 2-3 As shown, the valve body 41 is installed in the mounting cavity 8 of the inner cover 2 in a detachable manner (such as snap-fit ​​connection or threaded connection). Its inlet end is connected to the welding bag 6 through a one-way valve 42, and its outlet end is connected to the outlet nozzle 9 through another one-way valve 42. A pressing channel adapted to the pressing module 5 is opened in the middle of the valve body 41. The pressing channel is connected to the material flow channel inside the valve body 41 and is used to cooperate with the pressing module 5 to realize the discharge of material. The two one-way valves 42 respectively limit the flow direction of the material, ensuring that the material can only flow from the welding bag 6 to the outlet nozzle 9, and avoiding backflow.

[0020] Furthermore, the pressing module 5 includes: a rubber head 51 and a button 52; the rubber head 51 is covered at the end of the pressing channel away from the valve body 41 and is located inside the mounting cavity 8; the button 52 is installed on the outside of the rubber head 51, and its pressing end passes through the side wall of the inner cover 2 and is located on the outside of the inner cover 2.

[0021] In this embodiment, as Figure 2-4 The rubber head 51 shown is covered at the end of the pressing channel away from the valve body 41, and the whole is located in the mounting cavity 8. Its material is preferably elastic rubber, which has good deformation and reset ability. The button 52 is fixedly installed on the outside of the rubber head 51. The pressing end of the button 52 passes through the preset through hole on the inner cover 2 and extends to the outside of the inner cover 2, which is convenient for the user to press and operate.

[0022] Further, the inner cover 2 includes: an upper shell 21 and a lower shell 22; the upper shell 21 and the lower shell 22 are interlocked to form the mounting cavity 8; the welding bag 6 is detachably connected to the bottom of the lower shell 22; the lower shell 22 has a discharge hole for connecting a valve and the welding bag 6; the discharge nozzle 9 is installed on the upper shell 21 and is connected to the valve body 41 through another valve.

[0023] In this embodiment, as Figure 2-4The upper and lower covers shown are tightly fastened by a snap-fit ​​structure, making them easy to install and remove. The bottom of the lower cover has a discharge hole, which is used to connect the welding bag 6 to the inlet check valve 42 of the valve module 4, ensuring that the material in the welding bag 6 can smoothly enter the valve body 41. The discharge nozzle 9 is integrally formed or detachably installed on the upper cover, and it is connected to the discharge check valve 42 of the valve module 4 for the final discharge of the material.

[0024] Furthermore, a base 10 is provided at the bottom of the bottle body 3.

[0025] In this embodiment, as Figure 1-4 As shown, the base 10 is made of hard plastic or metal and is fixed to the bottom of the bottle body 3 by adhesive or threaded connection. It can also be integrally formed with the bottle body 3, which can effectively prevent the packaging bottle from tipping over. The bottle body 3 is connected to the lower end of the inner cap 2 by thread, which makes it easy to unscrew the bottle body 3 to replace the internal welding bag 6.

[0026] Furthermore, the discharge end of the discharge nozzle 9 is provided with an arc-shaped structure 11 that conforms to human skin.

[0027] In this embodiment, the discharge end of the nozzle 9 is configured as an arc-shaped structure 11 that conforms to human skin. This structure can improve the sealing when in contact with the skin, prevent material leakage, and improve user comfort. It is especially suitable for packaging skin care products and pharmaceutical ointments.

[0028] In the specific implementation process, such as Figure 1-4 As shown, when the user needs to use the material, press the button 52 on the outer side of the inner cover 2. The button 52 squeezes the inner rubber head 51, causing the rubber head 51 to deform and squeeze the air in the pressing channel, thereby creating a negative pressure in the internal channel of the valve body 41. Under the action of negative pressure, the material in the welding bag 6 overcomes the resistance of the one-way valve 42 at the feed end of the valve body 41 and enters the internal channel of the valve body 41. Then, it enters the discharge nozzle 9 through the one-way valve 42 at the discharge end and is finally discharged from the arc end of the discharge nozzle 9, realizing the precise use of the material. Release the button 52. Afterwards, the rubber head 51 resets under its own elasticity. At this time, the one-way valve 42 at the feed end closes to prevent material from flowing back into the welding bag 6 and to ensure the cleanliness of the material. When the material in the welding bag 6 is used up, the user can rotate the bottle body 3 to separate the bottle body 3 from the inner cap 2 and remove it. Then, remove the old welding bag 6 from the bottom of the lower cap and replace it with a new welding bag 6, ensuring that the new welding bag 6 is sealed to the discharge hole of the lower cap. Finally, tighten the bottle body 3 back onto the inner cap 2 to complete the replacement of the welding bag 6 and realize the reuse of the packaging bottle.

[0029] This utility model discloses a packaging bottle with a replaceable welded bag. The detachable welded bag design enables the reuse of the packaging bottle, reducing usage costs and resource waste. The bidirectional one-way valve effectively prevents material backflow, ensuring material cleanliness. The pressing module's structural design makes material dispensing more convenient and precise. The arc-shaped structure of the discharge nozzle improves user comfort. The detachable inner cap and the detachable connection of each component facilitate future maintenance and component replacement. The overall structure is reasonable and highly practical.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A packaging bottle with a replaceable welded bag, characterized in that, include: The bottle comprises a top cap, an inner cap, a bottle body, a valve module, a pressing module, and a welding bag for holding materials. The top cap covers the upper end of the inner cap. The lower end of the inner cap covers the bottle body to form a receiving cavity for holding the welding bag. The welding bag is detachably connected to the bottom of the inner cap. The inner cap has an installation cavity. The valve module is detachably installed in the installation cavity. The inner cap has a discharge nozzle. The valve module communicates with both the discharge nozzle and the welding bag. The pressing module is installed on one side of the inner cap.

2. The packaging bottle with a replaceable welded bag according to claim 1, characterized in that, The valve assembly includes: a valve body and two one-way valves; the valve body is detachably installed in the mounting cavity; the feed end of the valve body is connected to the welding bag through one of the one-way valves; the discharge end of the valve body is connected to the discharge nozzle through the other one-way valve; a pressing channel adapted to the pressing module is provided in the middle of the valve body; the pressing channel is connected to the internal channel of the valve body.

3. A packaging bottle with a replaceable welded bag according to claim 2, characterized in that, The pressing module includes: a rubber head and a button; the rubber head is disposed at the end of the pressing channel away from the valve body and is located inside the mounting cavity; the button is installed on the outside of the rubber head, and its pressing end passes through the side wall of the inner cover and is located on the outside of the inner cover.

4. A packaging bottle with a replaceable welded bag according to claim 3, characterized in that, The inner cover includes an upper shell and a lower shell; the upper shell and the lower shell are interlocked to form the mounting cavity; the welding bag is detachably connected to the bottom of the lower shell; the lower shell has a discharge hole for connecting a valve and the welding bag; the discharge nozzle is installed on the upper shell and is connected to the valve body through another valve.

5. A packaging bottle with a replaceable welded bag according to claim 1, characterized in that, The bottom of the bottle is provided with a base.

6. A packaging bottle with a replaceable welded bag according to claim 1, characterized in that, The discharge end of the discharge nozzle is provided with an arc-shaped structure that conforms to human skin.

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