A new vacuum flask

Abstract

This application relates to a novel vacuum bottle, comprising a bottle body, a piston, a pump sleeve, a pump core, a cap, and an outer cover. The bottle body is hollow and open at one end. The piston is slidably disposed within the bottle body. The pump sleeve is detachably disposed on the inner wall of the bottle body opening and has a through hole communicating with the inner cavity of the bottle body. The pump core is a detachable assembly structure, detachably inserted into the through hole and having a pumping port communicating with the inner cavity of the bottle body. The cap is slidably disposed within the pump sleeve and has a pumping tube communicating with the pumping port. The pumping tube is poweredly connected to the pump core to drive the vacuum suction operation of the pump core through the sliding of the cap. The side of the cap facing away from the pump sleeve has a pump outlet communicating with the pumping tube for pumping out the product. The outer cover is detachably disposed on the outer wall of the pump sleeve. This application reduces the number of parts that need to be replaced after the product in the vacuum bottle is used up, lowers replacement costs, and makes the use of the vacuum bottle more economical and environmentally friendly.

Description

Technical Field

[0001] This application relates to the field of cosmetic packaging bottle technology, and in particular to a novel vacuum bottle. Background Technology

[0002] The background technology of new cosmetic vacuum bottles can be traced back to the cosmetic industry's continuous demand for improved product quality, stability, and user experience. As consumers increasingly pursue "fresh," "healthy," "natural," and "green" skincare products, cosmetic formulas have become more complex and refined, and the requirements for storage environments have also increased. These formulas are often very sensitive to factors such as air, light, and oxidation, which can easily lead to product deterioration and performance degradation. New cosmetic vacuum bottles, as bottles with built-in vacuum pumps or valve devices, are designed to preserve the nutrients and active ingredients in cosmetic formulas.

[0003] Current liquid cosmetics mostly use pump-type vacuum bottles, which dispense liquid by pressing the cap. The inner bottle of most existing pump-type vacuum bottles is a replaceable structure, which is more environmentally friendly. However, when replacing the inner bottle of a new type of vacuum bottle, the inner bottle and the pump core and pump sleeve installed at the bottle mouth are replaced together. The parts that need to be replaced occupy a large part of the entire bottle. Each replacement pack comes with a new pump core, which is still not environmentally friendly enough, and the replacement cost is also high, increasing the purchase cost for consumers. Therefore, a technical solution is needed to solve the above problems. Utility Model Content

[0004] To reduce the number of parts that need to be replaced after the product inside the vacuum bottle is used up, thereby lowering replacement costs and making the use of vacuum bottles more economical and environmentally friendly.

[0005] The novel vacuum bottle provided in this application adopts the following technical solution:

[0006] A novel vacuum bottle includes a bottle body, a piston, a pump sleeve, a pump core, a cap, and an outer cover. The bottle body is hollow and open at one end. The piston is slidably disposed inside the bottle body. The pump sleeve is detachably disposed on the inner wall of the bottle body opening and has a through hole communicating with the inner cavity of the bottle body. The pump core is a detachable assembly structure, which is detachably inserted into the through hole and has a pumping port communicating with the inner cavity of the bottle body. The cap is slidably disposed inside the pump sleeve and has a pumping tube communicating with the pumping port. The pumping tube is poweredly connected to the pump core to drive the vacuum suction operation of the pump core through the sliding of the cap. The side of the cap away from the pump sleeve has a pump outlet communicating with the pumping tube for pumping out the product. The outer cover is detachably disposed on the outer wall of the pump sleeve.

[0007] Preferably, the pump core is a metering pump core, which includes a pump core base, a plunger, a one-way valve body, and a metering rebound assembly. The pump core base is a hollow base with openings at both ends and is inserted and fixed to the pump sleeve. One end of the pump core base is connected to the inner cavity of the bottle and the one-way valve body is detachably installed thereon. The one-way valve body restricts the product in the bottle to be conveyed only from the inner cavity of the bottle to the pump core base. The metering rebound assembly is detachably installed at the other end of the pump core base and is poweredly connected to the pumping pipe. The plunger slides in the pump core base to form a variable volume pump cavity with the pump core base and generates negative pressure through relative movement. The pumping pipe drives the metering rebound assembly to generate a driving force to drive the plunger to slide as the cap slides. The plunger is provided with a pumping channel connecting the pumping pipe and the inner cavity of the pump core base. The pumping channel is opened and closed as the plunger slides.

[0008] Furthermore, the quantitative rebound assembly includes a fixed seat, a power seat, a limiting seat, and an elastic element. The fixed seat is detachably disposed at one end of the pump core base away from the one-way valve body. The power seat is hollow with openings at both ends and slides through the fixed seat and the pump core base. The elastic element is engaged between the upper side wall of the power seat and the upper surface of the fixed seat. The limiting seat is disposed inside the pump core base and connected to the bottom end of the fixed seat to limit the lifting and lowering of the power seat. The plunger passes through the lower end of the limiting seat and extends into the power seat. A limiting ring is provided on the inner wall of the power seat near the top to push the plunger to slide. The pumping pipe is inserted into the inner cavity of the power seat located above the limiting ring.

[0009] Furthermore, the power seat has a smooth portion on its inner wall below the limiting ring for the plunger to slide. The power seat has a resistance portion on the inner wall of the smooth portion on the side away from the limiting ring, which is connected to the smooth portion. The resistance portion abuts against the outer wall of the plunger to drive the plunger to rise through friction.

[0010] Furthermore, the plunger is hollow with a top opening, and multiple pumping holes are evenly spaced on the side wall of the plunger near the bottom. When the pumping holes descend and communicate with the inner cavity of the pump core base, the pump core base, the pumping holes, the inner cavity of the power seat, and the pumping pipe are connected to form the pumping channel.

[0011] Furthermore, an elastic card is provided on one side of the outer wall of the power seat, and the bottom end of the elastic card is provided with a locking protrusion to limit the rise of the power seat.

[0012] Furthermore, the fixing seat is engaged with the pump core base. The top of the pump core base is provided with a engaging part, and the bottom of the fixing seat is provided with a engaging groove that engages with the engaging part. The inner wall of the engaging groove is provided with an engaging protrusion, and the engaging part is provided with a groove that matches the engaging protrusion.

[0013] Compared with the prior art, the novel vacuum bottle of this utility model has the following beneficial technical effects:

[0014] The novel vacuum bottle of this utility model has detachable and replaceable parts, including the bottle body, piston, pump sleeve, pump core, head cap, and outer cover. At the same time, the pump core as a whole is a detachable and assembleable structure. Thus, all parts of the vacuum bottle can be disassembled and replaced, reducing the number of parts that need to be replaced after the product in the vacuum bottle is used up, reducing replacement costs, and making the use of the vacuum bottle more economical and environmentally friendly. Attached Figure Description

[0015] Figure 1 This utility model is a structural diagram illustrating the overall structure of a novel vacuum bottle.

[0016] Figure 2 This utility model is a schematic diagram of the exploded structure of a novel vacuum bottle.

[0017] Figure 3 This utility model is a cross-sectional structural diagram mainly illustrating the overall structure of a novel vacuum bottle;

[0018] Figure 4 This is a cross-sectional structural diagram of the overall structure of the quantitative rebound component, which is the main feature of this utility model.

[0019] Reference numerals: 1. Bottle body; 2. Piston; 3. Pump sleeve; 31. Through hole; 4. Pump core; 41. Pump core base; 411. Pumping port; 412. Snap-fit ​​part; 4121. Groove; 42. Plunger; 421. Pumping hole; 43. One-way valve body; 44. Metering rebound assembly; 441. Fixing seat; 4411. Snap-fit ​​groove; 441A. Snap-fit ​​protrusion; 442. Power seat; 4421. Limiting ring; 4422. Smooth part; 4423. Resistance part; 443. Limiting seat; 444. Elastic element; 5. Head cap; 51. Pumping pipe; 52. Pump outlet; 6. Outer cover; 7. Elastic clip; 71. Snap-fit ​​protrusion. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the described embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains. The use of terms such as "a" or "an" in this patent application specification and claims does not indicate a limitation of quantity, but rather indicates the presence of at least one.

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses a novel vacuum bottle.

[0024] Reference Figures 1-3 A novel vacuum bottle includes a bottle body 1, a piston 2, a pump sleeve 3, a pump core 4, a cap 5, and an outer cover 6, and all components are coaxially arranged cylindrical structures.

[0025] The bottle body 1 is hollow with an opening at one end for containing cosmetic materials. The piston 2 is slidably installed inside the bottle body 1, moving upwards due to the pressure difference between the inside and outside of the bottle, thus pushing the material inside the bottle body 1 upwards. The pump sleeve 3 is detachably installed on the inner wall of the opening of the bottle body 1 and has a through hole 31 communicating with the inner cavity of the bottle body 1. The pump core 4 is a detachable assembly structure, detachably inserted into the through hole 31, and has a pumping port 411 communicating with the inner cavity of the bottle body 1. The head cap 5 is slidably installed inside the pump sleeve 3 and is integrally formed. The pumping pipe 51 is connected to the pumping port 411. The pumping pipe 51 is powered to the pump core 4 so as to drive the vacuum suction operation of the pump core 4 through the sliding of the head cap 5. The head cap 5 has a pump outlet 52 connected to the pumping pipe 51 on the side away from the pump sleeve 3 for pumping out the product. The outer cover 6 is fitted onto the outer wall of the pump sleeve 3. In feasible embodiments, the pump sleeve 3 and the bottle body 1 can be connected by interference fit or by thread. In this embodiment, the pump sleeve 3 is preferably screwed to the bottle body 1.

[0026] Reference Figures 2-4 The pump core 4 is a metering pump core, which includes a pump core base 41, a plunger 42, a one-way valve body 43, and a metering rebound assembly 44.

[0027] The pump core base 41 is a hollow base with openings at both ends and is inserted and fixed to the pump sleeve 3. The bottom end of the pump core base 41 is the pumping port 411 and communicates with the inner cavity of the bottle body 1. A one-way valve body 43 is snapped onto the inner wall of the bottom end of the pump core base 41. The one-way valve body 43 restricts the product in the bottle body 1 to be conveyed only from the inner cavity of the bottle body 1 to the pump core base 41. The quantitative rebound assembly 44 is detachably installed at the other end of the pump core base 41 and is poweredly connected to the pumping pipe 51. The plunger 42 slides in the pump core base 41 to form a variable volume pump cavity with the pump core base 41 and generates negative pressure through relative movement. The pumping pipe 51 drives the quantitative rebound assembly 44 to generate a driving force to drive the plunger 42 to slide as the cap 5 slides. The plunger 42 is provided with a pumping channel that connects the pumping pipe 51 and the inner cavity of the pump core base 41. The pumping channel is opened and closed as the plunger 42 slides.

[0028] Furthermore, the quantitative rebound assembly 44 includes a fixed seat 441, a power seat 442, a limiting seat 443, and an elastic element 444. The fixed seat 441 is detachably installed on the end of the pump core base 41 away from the one-way valve body 43. The power seat 442 is hollow with openings at both ends and slides through the fixed seat 441 and the pump core base 41. The elastic element 444 is engaged between the upper side wall of the power seat 442 and the upper surface of the fixed seat 441 to support the power seat 442 through the elastic force of the elastic element 444. In this embodiment, the elastic element is a spring, and the limiting seat 443 is a transition element. The plunger 42 is inserted into the pump core base 41 and connected to the bottom of the fixed seat 441 to limit the lifting and lowering of the power seat 442. The plunger 42 passes through the lower end of the limiting seat 443 and extends into the power seat 442. The inner wall of the power seat 442 near the top is integrally formed with a limiting ring 4421 to push the plunger 42 to slide. The pumping pipe 51 is inserted into the inner cavity of the power seat 442 located above the limiting ring 4421. Thus, the synchronous movement of the power seat 442 and the head cap 5 can be achieved through the connection between the pumping pipe 51 and the power seat 442.

[0029] Reference Figure 4 The power seat 442 has a smooth portion 4422 integrally formed on the inner wall below the limiting ring 4421 for the plunger 42 to slide. The power seat 442 has a resistance portion 4423 integrally formed on the inner wall of the smooth portion 4422 opposite to the limiting ring 4421, which is connected to the smooth portion 4422. The resistance portion 4423 abuts against the outer wall of the plunger 42 to drive the plunger 42 to rise through friction.

[0030] The plunger 42 is hollow and has a top opening. Multiple pumping holes 421 are evenly spaced on the side wall of the plunger 42 near the bottom. The multiple pumping holes 421 are evenly spaced around the circumference of the plunger 42. When the pumping holes 421 descend and communicate with the inner cavity of the pump core base 41, the pump core base 41, the pumping holes 421, the inner cavity of the power seat 442, and the pumping pipe 51 are connected to form a pumping channel.

[0031] In the initial state, under the elastic force of the elastic element 444, there is a certain gap between the limiting ring 4421 inside the power seat 442 and the plunger 42. The pumping hole 421 is located inside the limiting seat 443 and is sealed by the inner wall of the limiting seat 443. When pumping cosmetic materials in the bottle 1, the user removes the outer cap 6 and presses the head cap 5. The head cap 5 drives the pumping pipe 51 and the power seat 442 to move downward. At this time, the elastic element 444 is pressed to generate elastic force until the limiting ring 4421 abuts against the upper end face of the plunger 42 and continues to be pressed down, driving the plunger 42 to descend. During the descent of the plunger 42, it drives the pressure change within the pump core base 41 and the bottle body 1. Simultaneously, the pumping port 421 connects with the inner cavity of the pump core base 41, forming a pumping channel. The cosmetic material is then pumped out from the pumping channel to the pump outlet 52 on the cap 5 for use. After the user presses to use the product, they release the cap 5. The power seat 442 loses its downward pressure and moves upward under the elastic potential energy released by the elastic element 444. At the same time, the power seat 442 drives the plunger 42 upward through the resistance part 4423, causing the pumping port 421 to re-enter the limiting seat 443 for sealing. In actual use, the pumping volume of the vacuum bottle can be controlled by adjusting the sliding distance of the power seat 442 and the plunger 42.

[0032] Reference Figure 4 An elastic card 7 is attached to one side of the outer wall of the power seat 442. The bottom end of the elastic card 7 is integrally formed with a locking protrusion 71 to limit the rise of the power seat 442, thereby further improving the pumping stability of the pump core 4 during use.

[0033] Reference Figure 4 The fixed seat 441 is snapped into the pump core base 41. The top of the pump core base 41 is integrally formed with a snap-fit ​​part 412. The bottom of the fixed seat 441 is provided with a snap-fit ​​groove 4411 that snaps into the snap-fit ​​part 412. A snap-fit ​​protrusion 441A is integrally formed on the inner wall of the snap-fit ​​groove 4411. The snap-fit ​​part 412 is provided with a groove 4121 that matches the snap-fit ​​protrusion 441A. This arrangement ensures the firmness of the snap-fit ​​between the fixed seat 441 and the pump core base 41.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel vacuum bottle, characterized in that, The device includes a bottle body (1), a piston (2), a pump sleeve (3), a pump core (4), a cap (5), and an outer cover (6). The bottle body (1) is hollow and open at one end. The piston (2) is slidably disposed inside the bottle body (1). The pump sleeve (3) is detachably disposed on the inner wall of the opening of the bottle body (1) and has a through hole (31) communicating with the inner cavity of the bottle body (1). The pump core (4) is a detachable assembly structure. The pump core (4) is detachably inserted into the through hole (31) and has a connection with the bottle body (1). The inner cavity is connected to the pump port (411). The cap (5) is slidably disposed in the pump sleeve (3) and has a pump pipe (51) connected to the pump port (411). The pump pipe (51) is poweredly connected to the pump core (4) to drive the vacuum suction operation of the pump core (4) through the sliding of the cap (5). The cap (5) is provided with a pump outlet (52) connected to the pump pipe (51) on the side away from the pump sleeve (3) for pumping out the product. The outer cover (6) is detachably disposed on the outer wall of the pump sleeve (3).

2. The novel vacuum bottle according to claim 1, characterized in that: The pump core (4) is a metering pump core (4). The pump core (4) includes a pump core base (41), a plunger (42), a one-way valve body (43), and a metering rebound assembly (44). The pump core base (41) is a hollow base with openings at both ends and is inserted and fixed to the pump sleeve (3). One end of the pump core base (41) is connected to the inner cavity of the bottle body (1) and the one-way valve body (43) is detachably installed. The one-way valve body (43) restricts the product in the bottle body (1) to be conveyed only from the inner cavity of the bottle body (1) to the pump core base (41). The metering rebound assembly (44) The plunger (42) is detachably mounted on the other end of the pump core base (41) and is poweredly connected to the pumping pipe (51). The plunger (42) is slidably mounted in the pump core base (41) to form a variable volume pump chamber with the pump core base (41) and generate negative pressure through relative movement. The pumping pipe (51) drives the quantitative rebound assembly (44) to generate a driving force to drive the plunger (42) to slide as the head cap (5) slides. The plunger (42) is provided with a pumping channel that connects the pumping pipe (51) and the inner cavity of the pump core base (41). The pumping channel is opened and closed as the plunger (42) slides.

3. A novel vacuum bottle according to claim 2, characterized in that: The quantitative rebound assembly (44) includes a fixed seat (441), a power seat (442), a limiting seat (443), and an elastic element (444). The fixed seat (441) is detachably disposed at one end of the pump core base (41) away from the one-way valve body (43). The power seat (442) is hollow with openings at both ends and slides through the fixed seat (441) and the pump core base (41). The elastic element (444) is engaged between the upper side wall of the power seat (442) and the upper surface of the fixed seat (441). The limiting seat (443) is set inside the pump core base (41) and connected to the bottom end of the fixed seat (441) to limit the lifting and lowering of the power seat (442). The plunger (42) passes through the lower end of the limiting seat (443) and extends into the power seat (442). The inner wall of the power seat (442) near the top is provided with a limiting ring (4421) to push the plunger (42) to slide. The pumping pipe (51) is inserted into the inner cavity of the power seat (442) located above the limiting ring (4421).

4. A novel vacuum bottle according to claim 3, characterized in that: The power seat (442) has a smooth part (4422) on its inner wall below the limiting ring (4421) for the plunger (42) to slide. The power seat (442) has a resistance part (4423) on the inner wall of the smooth part (4422) opposite to the limiting ring (4421) that is connected to the smooth part (4422). The resistance part (4423) abuts against the outer wall of the plunger (42) to drive the plunger (42) to rise through friction.

5. A novel vacuum bottle according to claim 3, characterized in that: The plunger (42) is hollow and has a top opening. Multiple pumping holes (421) are evenly spaced on the side wall of the plunger (42) near the bottom. When the pumping holes (421) descend and communicate with the inner cavity of the pump core base (41), the pump core base (41) communicates with the pumping holes (421), the inner cavity of the power seat (442) and the pumping pipe (51) to form the pumping channel.

6. A novel vacuum bottle according to claim 3, characterized in that: An elastic card (7) is provided on one side of the outer wall of the power seat (442), and the bottom end of the elastic card (7) is provided with a locking protrusion (71) to limit the rise of the power seat (442).

7. A novel vacuum bottle according to claim 3, characterized in that: The fixed seat (441) is engaged with the pump core base (41). The pump core base (41) has a engagement part (412) at the top and an engagement groove (4411) at the bottom of the fixed seat (441) that engages with the engagement part (412). An engagement protrusion (441A) is provided on the inner wall of the engagement groove (4411), and a groove (4121) that matches the engagement protrusion (441A) is provided on the engagement part (412).

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