Vacuum packaging bottle with replaceable inner bottle

Abstract

The utility model relates to a vacuum packaging bottle with a replaceable inner bottle, which comprises an outer bottle with an opening at the top. The top of the inner bottle is open, and the inner bottle is detachably arranged in the outer bottle; the rotating sleeve sleeves the top of the inner bottle, the rotating sleeve and the inner bottle can be relatively fixed, and the rotating sleeve can rotate around a vertically extending axis; the shoulder sleeve sleeves the top of the outer bottle, and the shoulder sleeve and the outer bottle can be relatively fixed; the rotating sleeve is inserted into the shoulder sleeve, a limiting rib extending in the circumferential direction of the shoulder sleeve is arranged on the inner circumferential wall of the shoulder sleeve, a positioning piece is arranged on the outer circumferential wall of the rotating sleeve and comprises a transverse section extending in the circumferential direction of the rotating sleeve, the rotating sleeve can rotate to the state that the transverse section is located above or below the limiting rib, and in the state, the limiting rib is inserted into the shoulder sleeve. The limiting rib and the transverse section are detachably restrained together through the clamping protrusion and the clamping groove. The limiting ribs are convenient to process and manufacture.

Description

Technical Field

[0001] This utility model relates to the field of vacuum packaging technology for creams, lotions, etc., and specifically to a vacuum packaging bottle with a replaceable inner bottle. Background Technology

[0002] Most existing vacuum bottles are disposable. Once the lotion is used up, the vacuum bottles are usually discarded, resulting in significant waste. To address this issue, some vacuum packaging bottles currently have replaceable inner bottles. For example, the Chinese utility model patent disclosed in patent application number CN202322694887.6 (publication number CN220866159U), entitled "A Replaceable Vacuum Packaging Bottle," consists of a replacement core assembly, an outer bottle, and a cover. The replacement core assembly comprises a push cap, an outer shoulder sleeve, an inner shoulder sleeve, a pump core, an inner bottle, a piston, and a bottom cover. The lower end of the outer shoulder sleeve has three circular protrusions symmetrically distributed at 120 degrees on its outer wall. Each circular protrusion has an L-shaped notch on one side, with the horizontal part of the L-shaped notch located above the corresponding circular protrusion and the vertical part located to the left of the corresponding circular protrusion. The inner wall of the bottle mouth of the outer bottle has three screw-in slots symmetrically distributed at 120 degrees. The three circular protrusions on the outer shoulder sleeve slide and screw into the three screw-in slots of the outer bottle one by one. This patented replaceable vacuum packaging bottle allows for continued use after the main product is finished, simply by replacing the replacement core. The replacement operation is simple and convenient, and the individual replacement core is in a sealed vacuum state so that the material will not be contaminated, which can significantly reduce the amount of plastic used.

[0003] However, the outer bottle is large in size, making it inconvenient to use molds to process screw-in slots on it. In addition, apart from the cap and the outer bottle, the rest of the patent consists of replacement core components, which require the replacement of many parts and still result in a large amount of waste. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a vacuum packaging bottle with a replaceable inner bottle that is easy to process and manufacture, in light of the current state of the technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a vacuum packaging bottle with replaceable inner bottle, comprising...

[0006] The outer bottle has an open top;

[0007] The inner bottle has an open top and can be detachably placed inside the outer bottle;

[0008] A rotating sleeve is fitted onto the top of the inner bottle and the two can be fixed relative to each other. The rotating sleeve can rotate about a vertically extending axis.

[0009] The invention is characterized by including a shoulder sleeve fitted onto the top of the outer bottle, wherein the shoulder sleeve and the outer bottle can be fixed relative to each other; the rotating sleeve is inserted into the shoulder sleeve, wherein the inner peripheral wall of the shoulder sleeve is provided with a limiting rib extending circumferentially thereon, and the outer peripheral wall of the rotating sleeve is provided with a positioning member, wherein the positioning member includes a transverse section extending circumferentially thereon, and the rotating sleeve can be rotated to a state where the transverse section is above or below the limiting rib, and in this state, the limiting rib and the transverse section can be detachably constrained together by a latching protrusion and a latching groove.

[0010] In the above scheme, the rotating sleeve can rotate until the horizontal section is below the limiting rib, and the bottom of the rotating sleeve rests on the top of the outer bottle, so that the rotating sleeve cannot move downward.

[0011] Preferably, the positioning element further includes a vertically extending vertical section, in which the latching protrusion is engaged in the slot when the vertical section abuts against the end of the limiting rib. The function of the vertical section is to remind the user that the latching protrusion is already engaged in the slot, and there is no need to continue rotating the rotating sleeve.

[0012] To facilitate the fitting of the shoulder sleeve onto the outer bottle, the inner circumferential wall of the shoulder sleeve is provided with an insertion block, and the outer circumferential wall of the top of the outer bottle is provided with a slot for the insertion block to be inserted from top to bottom; alternatively, the inner circumferential wall of the shoulder sleeve is provided with a slot, and the outer circumferential wall of the top of the outer bottle is provided with an insertion block that can be inserted into the slot from bottom to top. The cooperation of the insertion block and the slot prevents relative rotation between the shoulder sleeve and the outer bottle in the circumferential direction.

[0013] To prevent the shoulder sleeve and the outer bottle from rotating relative to each other in the vertical direction, the top of the shoulder sleeve and the outer bottle are detachably connected by positioning ribs and positioning grooves, which extend along the circumference of the shoulder sleeve.

[0014] Preferably, a connecting tube is also inserted into the rotating sleeve, and a first threaded portion is provided on the inner circumferential wall of the connecting tube. The top of the inner bottle is provided with a second threaded portion that is threadedly connected to the first threaded portion. This allows the rotating sleeve and the inner bottle to be detached. After the rotating sleeve, inner bottle, and outer bottle are separated, the old inner bottle is removed, a new inner bottle is installed on the rotating sleeve, and then the rotating sleeve and inner bottle are assembled onto the outer bottle for continued use. Therefore, only the inner bottle needs to be replaced; other components can continue to be used, saving resources and reducing costs.

[0015] In the above scheme, the rotating sleeve includes a sleeve and an outer ring body surrounding the outer periphery of the sleeve. The sleeve and the outer ring body are connected. The positioning element is provided on the outer ring body. The connecting pipe is inserted into the sleeve.

[0016] In order to fix the connecting tube relative to the sleeve, the inner peripheral wall of the sleeve is provided with an upper limit platform for limiting the top of the connecting tube and a lower limit platform for limiting the bottom of the connecting tube.

[0017] Preferably, the vacuum packaging bottle further includes a vacuum pump assembly for drawing the contents of the inner bottle. The vacuum pump assembly extends partially into the inner bottle through the rotating sleeve. The top of the connecting tube extends inward to form a flange, which presses part of the vacuum pump assembly against the top wall of the inner bottle. The connecting tube also serves to position the vacuum pump assembly.

[0018] Compared with the prior art, the advantages of this utility model are as follows: By setting a shoulder sleeve on the top of the outer bottle, the limiting ribs can be processed on the shoulder sleeve first, and then the shoulder sleeve can be installed on the outer bottle. Because the shoulder sleeve is smaller in size, compared with the method of directly processing the limiting ribs on the larger outer bottle, it is easier to make the limiting ribs with molds, and the processing and manufacturing are simple. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 A sectional view;

[0021] Figure 3 for Figure 2 Enlarged view of point A;

[0022] Figure 4 for Figure 3 A schematic diagram of the shoulder cover structure;

[0023] Figure 5 for Figure 3 A schematic diagram of the material discharge seat in the middle;

[0024] Figure 6 for Figure 5 A sectional view;

[0025] Figure 7 for Figure 1 A schematic diagram of the outer bottle. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be understood that, unless otherwise stated, "multiple" means two or more, and the terms "upper," "lower," "left," "right," "top," "bottom," "front," "rear," etc., indicate the orientation or positional relationship based on the direction or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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 adhesive connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model patent based on the specific circumstances.

[0029] like Figures 1-6 As shown, the vacuum packaging bottle with replaceable inner bottle in this preferred embodiment includes an inner bottle 1, an outer bottle 2, a rotating sleeve 3, a vacuum pump assembly 4, and a shoulder sleeve 5.

[0030] Vacuum pump assembly 4 adopts existing technology, such as the Chinese utility model patent "Vacuum Pump Head and Bottle" with patent application number CN202020224529.2 (publication number CN211996921U).

[0031] Both the outer bottle 2 and the inner bottle 1 have open tops, and the inner bottle 1 can be detachably placed inside the outer bottle 2. The rotating sleeve 3 is fitted onto the top of the inner bottle 1 and the two can be fixed relative to each other. The vacuum pump assembly 4 passes through the rotating sleeve 3 and partially extends into the inner bottle 1 to draw out the contents of the inner bottle 1.

[0032] Shoulder sleeve 5 is fitted onto the top of outer bottle 2, and shoulder sleeve 5 and outer bottle 2 can be relatively fixed: such as Figure 4 , 7 As shown, the inner circumferential wall of the shoulder sleeve 5 is provided with an insertion block 52, and the outer circumferential wall of the top of the outer bottle 2 is provided with a slot 21 for the insertion block 52 to be inserted from top to bottom; alternatively, the inner circumferential wall of the shoulder sleeve 5 is provided with a slot 21, and the outer circumferential wall of the top of the outer bottle 2 is provided with an insertion block 52 that can be inserted into the slot 21 from bottom to top. The cooperation between the insertion block 52 and the slot 21 prevents relative rotation between the shoulder sleeve 5 and the outer bottle 2 in the circumferential direction.

[0033] The top of the shoulder sleeve 5 and the outer bottle 2 are detachably connected by a positioning rib 22 and a positioning groove 53. The positioning rib 22 and the positioning groove 53 extend circumferentially along the shoulder sleeve 5, and cooperate to prevent the shoulder sleeve 5 and the outer bottle 2 from rotating relative to each other in the vertical direction. In this embodiment, the positioning rib 22 is provided on the outer bottle 2, and the positioning groove 53 is provided on the shoulder sleeve 5.

[0034] It can be seen that the shoulder sleeve 5 and the outer bottle 2 are simple and convenient to assemble and can be disassembled.

[0035] The rotating sleeve 3 can rotate about a vertically extending axis, such as... Figure 3 , 4 As shown in Figure 5, the rotating sleeve 3 is inserted into the shoulder sleeve 5. The inner circumferential wall of the shoulder sleeve 5 has a limiting rib 51 extending circumferentially therefrom. The outer circumferential wall of the rotating sleeve 3 has a positioning element 6, which includes a transverse section 61 extending circumferentially along the rotating sleeve 3. The rotating sleeve 3 can rotate to a position where the transverse section 61 is above or below the limiting rib 51. In this state, the limiting rib 51 and the transverse section 61 are detachably bound together by a latching protrusion 611 and a latching groove 511. By rotating the rotating sleeve 3, the latching protrusion 611 disengages from the latching groove 511, thus disassembling the rotating sleeve 3 and the shoulder sleeve 5. By rotating the rotating sleeve 3, the latching protrusion 611 engages with the latching groove 511, thus assembling the rotating sleeve 3 and the shoulder sleeve 5.

[0036] In this embodiment, the protrusion 611 is provided on the transverse section 61, and the groove 511 is provided on the limiting rib 51. Of course, the positions of the two can also be interchanged.

[0037] In this embodiment, the rotating sleeve 3 can rotate until the transverse section 61 is below the limiting rib 51, and the bottom of the rotating sleeve 3 rests on the top of the outer bottle 2 so that the rotating sleeve 3 cannot move downward.

[0038] The positioning component 6 also includes a vertically extending vertical section 62. When the vertical section 62 abuts against the end of the limiting rib 51, the locking protrusion 611 is engaged in the locking groove 511. The function of the vertical section 62 is to remind the user that the locking protrusion 611 is engaged in the locking groove 511 and there is no need to continue rotating the rotating sleeve 3.

[0039] A connecting tube 8 is also inserted into the rotating sleeve 3. The inner circumferential wall of the connecting tube 8 has a first threaded portion 81, and the top of the inner bottle 1 has a second threaded portion 11 that is threadedly connected to the first threaded portion 81. This allows the rotating sleeve 3 and the inner bottle 1 to be detached. After the rotating sleeve 3, inner bottle 1, and outer bottle 2 are separated, the old inner bottle 1 is removed, a new inner bottle 1 is installed on the rotating sleeve 3, and then the rotating sleeve 3 and inner bottle 1 are installed together on the outer bottle 2 for continued use. Therefore, only the inner bottle 1 needs to be replaced; the rotating sleeve 3 does not need to be replaced, saving resources and reducing costs.

[0040] In addition, the connecting tube 8 and the inner bottle 1 are threaded together, which not only makes disassembly and assembly convenient, but also allows the contents of the inner bottle 1 to be covered by a threaded cap because the top of the inner bottle 1 has a threaded part, preventing the contents of the inner bottle 1 from flowing out and making it easy to carry.

[0041] In this embodiment, as Figure 3 , 6 As shown, the rotating sleeve 3 includes a sleeve 31 and an outer ring 32 surrounding the outer periphery of the sleeve 31. The sleeve 31 and the outer ring 32 are connected. A positioning element 6 is provided on the outer ring 32, and a connecting pipe 8 is inserted into the sleeve 31. The inner peripheral wall of the sleeve 31 is provided with an upper limit platform 33 for limiting the top of the connecting pipe 8 and a lower limit platform 34 for limiting the bottom of the connecting pipe 8, so that the connecting pipe 8 is fixed relative to the sleeve 31.

[0042] The top of the connecting tube 8 extends inward to form a flange 82, which presses the vacuum pump assembly 4 against the top wall of the inner bottle 1. The connecting tube 8 also serves to position the vacuum pump assembly 4.

[0043] The rotating sleeve 3 has a detachable cap 7, which can also cover the vacuum pump assembly 4.

Claims

1. A vacuum packaging bottle with a replaceable inner bottle, comprising: Outer bottle (2), top open; The inner bottle (1) has an open top and can be detachably placed inside the outer bottle (2); A rotating sleeve (3) is fitted on the top of the inner bottle (1) and the two can be fixed relative to each other. The rotating sleeve (3) can rotate around a vertically extending axis. characterized in that It also includes a shoulder sleeve (5) fitted on the top of the outer bottle (2), the shoulder sleeve (5) and the outer bottle (2) being relatively fixed; the rotating sleeve (3) is inserted into the shoulder sleeve (5), the inner peripheral wall of the shoulder sleeve (5) is provided with a limiting rib (51) extending along its circumference, the outer peripheral wall of the rotating sleeve (3) is provided with a positioning member (6), the positioning member (6) includes a transverse section (61) extending along the circumference of the rotating sleeve (3), the rotating sleeve (3) can rotate to a state where the transverse section (61) is above or below the limiting rib (51), and in this state, the limiting rib (51) and the transverse section (61) can be detachably constrained together by the locking protrusion (611) and the locking groove (511).

2. The vacuum packaging bottle according to claim 1, characterized in that: The rotating sleeve (3) can rotate until the transverse section (61) is located below the limiting rib (51), and the bottom of the rotating sleeve (3) rests on the top of the outer bottle (2).

3. The vacuum packaging bottle according to claim 1, characterized in that: The positioning member (6) also includes a vertically extending vertical section (62), and the locking protrusion (611) is engaged in the locking groove (511) when the vertical section (62) abuts against the end of the limiting rib (51).

4. The vacuum packaging bottle of claim 1, wherein: The inner peripheral wall of the shoulder sleeve (5) is provided with an insert (52), and the outer peripheral wall of the top of the outer bottle (2) is provided with a slot (21) for inserting the insert (52) from top to bottom; or, the inner peripheral wall of the shoulder sleeve (5) is provided with a slot (21), and the outer peripheral wall of the top of the outer bottle (2) is provided with an insert (52) for inserting into the slot (21) from bottom to top.

5. The vacuum packaging bottle according to claim 4, characterized in that: The top of the shoulder sleeve (5) and the outer bottle (2) are detachably connected by a positioning rib (22) and a positioning groove (53), which extend circumferentially along the shoulder sleeve (5).

6. The vacuum packaging bottle according to any one of claims 1 to 5, characterized in that: The rotating sleeve (3) is also fitted with a connecting tube (8), and the inner circumferential wall of the connecting tube (8) is provided with a first threaded part (81), and the top of the inner bottle (1) is provided with a second threaded part (11) that is threadedly connected to the first threaded part (81).

7. The vacuum packaging bottle according to claim 6, characterized in that: The rotating sleeve (3) includes a sleeve (31) and an outer ring (32) surrounding the outer periphery of the sleeve (31). The sleeve (31) and the outer ring (32) are connected. The positioning element (6) is provided on the outer ring (32). The connecting pipe (8) is inserted into the sleeve (31).

8. The vacuum packaging bottle according to claim 7, characterized in that: The inner circumferential wall of the sleeve (31) is provided with an upper limit platform (33) for limiting the top of the connecting pipe (8) and a lower limit platform (34) for limiting the bottom of the connecting pipe (8).

9. The vacuum packaging bottle of claim 6, wherein: It also includes a vacuum pump assembly (4) for drawing the contents of the inner bottle (1), the vacuum pump assembly (4) extending partially into the inner bottle (1) through the rotating sleeve (3); the top of the connecting tube (8) extends inward to form a flange (82), which presses part of the vacuum pump assembly (4) against the top wall of the inner bottle (1).

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