Replaceable pump pressure container

By designing a replaceable inner liner structure, the problems of resource waste and high cost of pump-pressed containers are solved, enabling the reuse of the outer bottle and the press pump, improving service life and stability, and making it suitable for cosmetic containers.

CN223972975UActive Publication Date: 2026-03-06ALIMEI PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing pump pressure vessels are generally for single use, resulting in resource waste and high costs, and the pump structure is complex.

Method used

A replaceable pump container is designed, including an outer bottle, an inner liner, a pump, and a cap. The inner liner is replaceable through a threaded connection and snap-fit ​​structure, while the outer bottle and pump are reusable.

Benefits of technology

It reduces material waste, lowers environmental pressure, improves the service life and stability of the pump, and offers a variety of bottle shapes to meet different design needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a replaceable pump pressure container which comprises an outer bottle, an inner container, a pressing pump and a protecting cover, the outer bottle comprises a bottle body and a bottle cover, the inner container is located inside the bottle body, a connector extending out of the bottle body is arranged at the upper end of the inner container, the pressing pump is in threaded connection with the connector, and the lower end of the protecting cover is in threaded connection or rotary clamping connection with the bottle body. The bottle cap is buckled with the protecting cap or the bottle body, and a movable opening for a pressing head of the pressing pump to extend out is formed in the upper end of the protecting cap. According to the replaceable pump pressure container, the inner container can be replaced to form a replaceable device. The outer bottle, the pressing pump and other parts can be repeatedly used, material waste is reduced, and environmental protection pressure is reduced. The inner container is convenient and simple to replace, the pressing pump needing to be assembled and disassembled for multiple times is protected through the protecting cover, the stability of the pressing pump in the using process is improved, and the service life of the pressing pump is prolonged. And the outer bottle is rich in modeling, so that the replaceable pumping pressure container can meet the design requirements of different styles.
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Description

Technical Field

[0001] This utility model belongs to the field of container technology, specifically relating to replacement pump pressure containers. Background Technology

[0002] Pump containers are suitable for use in cosmetics such as lotions and creams. To use them, simply apply pressure to the pump's pump mechanism to dispense the liquid. They are convenient, easy to operate, and hygienic. However, existing pump containers are generally disposable; the entire container is discarded after use, resulting in significant waste. Furthermore, the pumps within these containers are complex and costly. Therefore, improvements to existing pump containers are necessary. Utility Model Content

[0003] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a replacement pump pressure container, including an outer bottle, an inner liner, a pump, and a protective cap. The outer bottle includes a bottle body and a cap. The inner liner is located inside the bottle body. The upper end of the inner liner is provided with a connector that extends out of the bottle body. The pump is threadedly connected to the connector. The lower end of the protective cap is threadedly connected to the bottle body or rotated and snapped. The cap is fastened to the protective cap or the bottle body. The upper end of the protective cap is provided with an movable opening for the pump head to extend out.

[0004] As a preferred embodiment of the above technical solution, the bottle body has a circular cross-section, and the bottle cap has a circular cross-section.

[0005] As a preferred embodiment of the above technical solution, the upper end of the bottle body is provided with an external threaded portion, the lower end of the cap is provided with an internal threaded portion and a snap-fit ​​portion, the internal threaded portion and the external threaded portion are threadedly engaged, the outer side of the snap-fit ​​portion is provided with several protrusions, the inner side of the lower end of the cap is provided with an annular groove, the protrusions are located in the annular groove and form a snap-fit ​​engagement with the annular groove.

[0006] As a preferred embodiment of the above technical solution, the bottle body has a square cross-section, and the bottle cap has a square cross-section.

[0007] As a preferred embodiment of the above technical solution, a connecting frame is fixedly connected to the upper end of the bottle body. The inner side of the connecting frame has a circular inner wall. The connecting frame divides the upper surface of the bottle body into an inner support platform and an outer support platform. The inner support platform is annular. The lower end of the cap is placed on the inner support platform. Several locking blocks are fixed to the outer side of the lower end of the cap. Several arc-shaped slots are provided on the circular inner wall. The arc-shaped slots correspond to the locking blocks. Several locking block insertion ports are provided at the upper end of the connecting frame. The locking block insertion ports correspond to the arc-shaped slots. The locking block insertion ports are connected to one end of the arc-shaped slots.

[0008] As a preferred embodiment of the above technical solution, a limiting part is provided above the interior of the arc-shaped slot.

[0009] As a preferred embodiment of the above technical solution, the outer perimeter of the connecting frame is provided with a number of protrusions, the lower end of the bottle cap is placed on the outer support platform, and the inner side of the lower end of the bottle cap is provided with a number of snap-fit ​​grooves. The protrusions correspond to the snap-fit ​​grooves and are snapped together with the corresponding snap-fit ​​grooves.

[0010] As a preferred embodiment of the above technical solution, the bottle cap includes an outer cap and an inner cap, with the inner cap located inside the outer cap and fastened to it.

[0011] The beneficial effects of this utility model are as follows: The replaceable pump container of this utility model has a replaceable inner liner, forming a replaceable package. Components such as the outer bottle and the pump can be reused, reducing material waste and alleviating environmental pressure. The inner liner is easy and simple to replace, and the protective cap protects the pump, which requires multiple installations and removals, improving the stability and lifespan of the pump during use. The various outer bottle shapes allow the replaceable pump container to meet different design needs. Attached Figure Description

[0012] Figure 1 This is a cross-sectional structural diagram of the present invention in Embodiment 1;

[0013] Figure 2 This is a schematic diagram of the structure of the present invention in Embodiment 1;

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention in Embodiment 2;

[0015] Figure 4 This is a schematic diagram of the structure of the present invention in Embodiment 2;

[0016] Figure 5 This is a schematic diagram of the bottle structure in Example 2;

[0017] Figure 6 This is a schematic diagram of the cover structure in Example 2. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

[0021] Example 1

[0022] like Figure 1-2 As shown, the replacement pump container includes an outer bottle, an inner liner 1, a pump 2, and a cap 3. The outer bottle includes a bottle body 4 and a cap 5. The inner liner 1 is located inside the bottle body 4. The upper end of the inner liner 1 has a connector 6 extending out of the bottle body 4. The pump 2 is threadedly connected to the connector 6. The lower end of the cap 3 is threadedly connected to the bottle body 4. The cap 5 is fastened to the cap 3. The upper end of the cap 3 has an opening 7 for the pump head of the pump 2 to extend out. The pump 2 is existing technology and can be purchased directly from the market. The hose of the pump 2 is inserted into the inner liner 1. The pump 2 is rotated so that it is threadedly connected to the connector 6. The cap 3 is then placed on and rotated so that its lower end is threadedly connected to the bottle body 4. The cap 5 is then installed to complete the assembly of the replacement pump container. Multiple inner liners 1 containing the product are provided for sale as replacement packs or individually. When the inner liner 1 needs to be replaced, open the bottle cap 5, rotate the protective cap 3, and remove the protective cap 3. Rotate the pump 2 and remove the pump 2. Take out the inner liner 1 from the bottle body 4, insert the new replacement inner liner 1 into the bottle body 4, and repeat the above assembly process to complete the replacement of the inner liner 1.

[0023] Furthermore, the bottle body 4 has a circular cross-section, and the bottle cap 5 has a circular cross-section.

[0024] Furthermore, the upper end of the bottle body 4 is provided with an external threaded portion 8, and the lower end of the cap 3 is provided with an internal threaded portion 9 and a fastening portion 10. The internal threaded portion 9 and the external threaded portion 8 are threadedly engaged. The outer side of the fastening portion 10 is provided with several protrusions 11. The inner side of the lower end of the bottle cap 5 is provided with an annular groove 12, and the protrusions 11 are located in the annular groove 12 and form a fastening engagement with the annular groove 12. The cap 3 is threadedly connected to the bottle body 4, and the bottle cap 5 is fastened to the cap 3.

[0025] Example 2

[0026] like Figure 3-6 As shown, the replacement pump container includes an outer bottle, an inner liner 1, a pump 2, and a cap 3. The outer bottle includes a bottle body 4 and a cap 5. The inner liner 1 is located inside the bottle body 4. The upper end of the inner liner 1 has a connector 6 extending out of the outer bottle. The pump 2 is threadedly connected to the connector 6. The lower end of the cap 3 is rotatably engaged with the bottle body 4. The cap 5 is fastened to the bottle body 4. The upper end of the cap 3 has an opening 7 for the pump head of the pump 2 to extend out. The pump 2 is existing technology and can be purchased directly from the market. The hose of the pump 2 is inserted into the inner liner 1. The pump 2 is rotated so that it is threadedly engaged with the connector 6. The cap 3 is then placed on top, and its lower end is rotatably engaged with the bottle body 4. The cap 5 is then installed, completing the assembly of the replacement pump container. Multiple inner liners 1 containing the product are provided for sale as replacement sets or individually. When the inner liner 1 needs to be replaced, the cap 5 is opened, the cap 3 is rotated, and the cap 3 is removed. Rotate the pump 2 to remove it. Take out the inner liner 1 from the bottle body 4, insert the new replacement inner liner 1 into the bottle body 4, and repeat the above assembly process to complete the replacement of the inner liner 1.

[0027] Furthermore, the bottle body 4 has a square cross-section, and the bottle cap 5 has a square cross-section.

[0028] Furthermore, a connecting frame 13 is fixedly connected to the upper end of the bottle body 4. The inner side of the connecting frame 13 has a circular inner wall 14. The connecting frame 13 divides the upper surface of the bottle body 4 into an inner support platform 15 and an outer support platform 16. The inner support platform 15 is annular, and the lower end of the cap 3 is placed on the inner support platform 15. Several locking blocks 17 are fixed to the outer side of the lower end of the cap 3. Several arc-shaped locking grooves 18 are provided on the circular inner wall 14, and the arc-shaped locking grooves 18 correspond to the locking blocks 17. Several locking block insertion ports 19 are provided at the upper end of the connecting frame 13, and the locking block insertion ports 19 correspond to the arc-shaped locking grooves 18. The locking block insertion ports 19 are connected to one end of the arc-shaped locking grooves 18. The cap 3 protects the pressing pump 2, so that the pressing part of the pressing pump 2 remains stable when pressed. The bottle body 4 and the cap 5, with a square cross-section, form a more diverse shape.

[0029] Furthermore, a limiting part 20 is provided above the interior of the arc-shaped slot 18. Rotating the cover 3 causes the locking block 17 to move in the arc-shaped slot 18, the material deforms, the locking block 17 passes over the limiting part 20, and finally the limiting part 20 locks the locking block 17, so that the cover 3 and the bottle body 4 remain relatively fixed.

[0030] Furthermore, the outer perimeter of the connecting frame 13 is provided with several protrusions 25, the lower end of the bottle cap 5 is placed on the outer support platform 16, and the inner side of the lower end of the bottle cap 5 is provided with several fastening grooves 21. The protrusions 25 correspond to the fastening grooves 21 and are fastened together with the corresponding fastening grooves 21.

[0031] Furthermore, the bottle cap 5 includes an outer cap 22 and an inner cap 23, with the inner cap 23 located inside the outer cap 22 and fastened to it. The bottle cap 5 has a double-layer structure.

[0032] It is worth mentioning that the technical features such as the press pump 2 involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement of these technical features can be adopted by conventional choices in the field, and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0033] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A replacement pump pressurized container characterized in that, The utility model provides a bottle, including outer bottle, inner container (1), press pump (2), protective cover (3), the outer bottle includes bottle body (4) and bottle cap (5), and the inner container (1) is located inside bottle body (4), and the upper end of inner container (1) is equipped with the connecting head (6) of the bottle body (4) extension, and press pump (2) is connected with connecting head (6) screw thread, and the lower end of protective cover (3) is connected with bottle body (4) screw thread or rotary joint, and bottle cap (5) is buckled with protective cover (3) or bottle body (4), and the upper end of protective cover (3) is equipped with the movable mouth (7) of the press head extension of press pump (2).

2. The refill pump pressurized container of claim 1 wherein, The bottle body (4) is circular in cross section, and the bottle cap (5) is also circular in cross section.

3. The refill pump and pressurized container of claim 2 wherein, The upper end of the bottle body (4) is provided with an external thread portion (8), the lower end of the protective cover (3) is provided with an internal thread portion (9) and a buckling portion (10), the internal thread portion (9) and the external thread portion (8) are screw-threaded, the buckling portion (10) is provided with a plurality of protrusions (11) on the outer side, the lower end of the bottle cap (5) is provided with an annular clamping groove (12) on the inner side, the protrusions (11) are located in the annular clamping groove (12) and form a buckling fit with the annular clamping groove (12).

4. The refill pump and pressurized container of claim 1 wherein, The bottle body (4) is square in cross section, and the bottle cap (5) is also square in cross section.

5. The refill pump and pressurized container of claim 4 wherein, The upper end of the bottle body (4) is fixedly connected with a connecting frame (13), the inner side of the connecting frame (13) is provided with a circular inner wall (14), the connecting frame (13) divides the upper surface of the bottle body (4) into an inner support platform (15) and an outer support platform (16), the inner support platform (15) is annular, the lower end of the protective cover (3) is located on the inner support platform (15), the lower end of the protective cover (3) is fixedly provided with a plurality of clamping blocks (17) on the outer side, the circular inner wall (14) is provided with a plurality of arc-shaped clamping grooves (18), the arc-shaped clamping grooves (18) correspond to the clamping blocks (17), the upper end of the connecting frame (13) is provided with a plurality of clamping block insertion openings (19), the clamping block insertion openings (19) correspond to the arc-shaped clamping grooves (18) and communicate with one end of the arc-shaped clamping grooves (18).

6. The refill pump and pressurized container of claim 5 wherein, The upper side of the inner side of the arc-shaped clamping groove (18) is provided with a limiting portion (20).

7. The refill pump and pressurized container of claim 5 wherein, The outer side of the connecting frame (13) is provided with a plurality of protruding blocks (25) around, the lower end of the bottle cap (5) is located on the outer support platform (16), the lower end of the bottle cap (5) is provided with a plurality of buckling grooves (21) on the inner side, the protruding blocks (25) correspond to the buckling grooves (21) and form a buckling fit with the corresponding buckling grooves (21).

8. The refill pump and pressurized container of claim 4 wherein, The bottle cap (5) includes an outer cap (22) and an inner cap (23), the inner cap (23) is located inside the outer cap (22) and buckled with the outer cap (22).