Knob type replaceable vacuum bottle
The spiral channel and limiting groove structure with a knob design solves the problem of the non-removable inner liner of the vacuum bottle, realizing the replacement of the inner liner and the reuse of the outer bottle, reducing costs and improving environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG RUICHANG INDAL
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-28
AI Technical Summary
Existing vacuum bottles are fully enclosed designs, with the inner liner and pump body highly integrated and non-removable. This makes it impossible to replenish or replace the inner liner after use, increasing user costs and being environmentally unfriendly.
A knob-type replaceable vacuum bottle was designed. The inner bottle body is detachable and replaceable through a spiral channel and limiting groove structure. The inner bottle body is conveniently fixed and removed by the cooperation of the rotating sleeve and the guide groove.
This technology enables the reuse of the outer shell of the vacuum bottle, reduces usage costs, improves environmental friendliness, and meets the needs of sustainable development.
Smart Images
Figure CN224165885U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of vacuum bottle technology, specifically a knob-type replaceable vacuum bottle. Background Technology
[0002] In the cosmetics packaging industry, vacuum bottles have become the mainstream packaging format for high-value skincare products such as serums and lotions due to their excellent sealing properties, antioxidant functions, and precise dispensing capabilities. As people's demand for aesthetically pleasing cosmetics increases, the manufacturing process of vacuum bottles becomes more complex, often requiring expensive materials to achieve both a refined appearance and a robust structure.
[0003] Most existing vacuum bottles are fully enclosed designs, with the inner liner and pump body highly integrated and non-removable. Once the contents are used up, consumers cannot replenish or replace the inner liner themselves, forcing the entire package to be discarded. This not only increases long-term costs for users but also runs counter to current environmental principles of sustainable development.
[0004] In summary, existing vacuum bottle technology, due to its high cost, low reusability, and environmental unfriendliness, is no longer able to meet consumers' evolving demands for cost-effectiveness, environmental friendliness, and personalization. Therefore, there is an urgent need for a vacuum bottle solution with easily replaceable inner liners. Summary of the Invention
[0005] This invention addresses the shortcomings of existing technologies by providing a knob-type replaceable vacuum bottle. This knob-type replaceable vacuum bottle allows for easy replacement of the inner liner, enabling the reuse of the outer bottle body, reducing practical costs and making it more environmentally friendly.
[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a knob-type replaceable vacuum bottle, comprising an outer bottle body and an inner bottle body. The outer bottle body includes an inner cylinder, a connecting sleeve, and a rotating sleeve. The connecting sleeve is fixedly connected to the outside of the inner cylinder. The inner cylinder is provided with a spiral channel that opens to the bottom. The outer wall of the inner bottle body is provided with a protrusion that engages with the spiral channel. The inner wall of the connecting sleeve is rotatably connected to the outer wall of the rotating sleeve. The rotating sleeve is provided with a guide groove for the protrusion to pass through. The outer wall of the rotating sleeve is provided with a limiting protrusion. The inner wall of the connecting sleeve is provided with an arc-shaped groove for the limiting protrusion to rotate internally. The arc-shaped groove contains a limiting groove for limiting the limiting protrusion. When the limiting protrusion is engaged in the limiting groove, the protrusion is limited by the spiral channel and the guide groove. When the cosmetics in the inner bottle of this knob-type replaceable vacuum bottle are used up, rotating the rotating sleeve disengages the limiting protrusion from the limiting groove. During rotation, driven by the side wall of the guide groove, the protrusion moves down along the spiral channel and out from the end, allowing the entire inner bottle to be removed. Then, the protrusion of the new inner bottle containing cosmetics is inserted from the limiting groove into the spiral channel. Rotating the rotating sleeve in the opposite direction causes the protrusion to rotate and move up along the spiral channel. When the limiting protrusion is locked into the limiting groove, the inner bottle is fixed, completing one replacement. This knob-type replaceable vacuum bottle allows for convenient replacement of the inner liner, enabling the reuse of the outer bottle, reducing practical costs and making it more environmentally friendly.
[0007] In the above technical solution, preferably, the top of the spiral channel is provided with a limiting opening with an upward protrusion at the bottom. When the limiting protrusion is engaged with the limiting groove, the protrusion is located within the limiting opening. This structure makes the inner bottle more reliably positioned and prevents the protrusion from moving within the spiral channel during use.
[0008] In the above technical solution, preferably, an annular flange is provided at the mouth of the inner bottle, which can cooperate with the dispensing bottle cap to seal the inner bottle. This structure facilitates the sealing of the replacement inner bottle.
[0009] In the above technical solution, preferably, a vacuum pump head is provided at the mouth of the inner bottle, and a squeezing head is interference-fitted onto the vacuum pump head. The squeezing head is provided with a liquid outlet channel communicating with the liquid outlet of the vacuum pump head. This structure allows for easy separation of the squeezing head from the vacuum pump head when the inner bottle needs to be replaced.
[0010] In the above technical solution, preferably, the top of the inner cylinder has an annular groove, the extrusion head is provided with an extension ring that inserts into the annular groove, the inner wall of the extension ring is provided with a limiting rib, and the side wall of the annular groove is provided with a notch that matches the limiting rib. This structure can prevent the extrusion head from rotating, thus preventing the inner bottle from rotating and preventing the limiting protrusion from disengaging from the limiting groove.
[0011] In the above technical solution, preferably, the positioning ribs on the outer wall of the inner cylinder engage with the positioning grooves on the inner wall of the connecting sleeve to position the inner cylinder and the connecting sleeve. The outer wall of the inner cylinder is provided with alignment ribs, and the connecting sleeve is provided with alignment grooves. The inner cylinder and the connecting sleeve are aligned by the alignment ribs engaging with the alignment grooves. This structure facilitates the alignment of the inner cylinder and the connecting sleeve.
[0012] In the above technical solution, preferably, a piston is provided inside the inner bottle, and an air hole is provided at the bottom of the inner bottle.
[0013] Compared with existing technologies, this invention has the following advantages: When the cosmetics in the inner bottle of this knob-type replaceable vacuum bottle are used up, rotating the rotating sleeve disengages the limiting protrusion from the limiting groove. During rotation, driven by the side wall of the guide groove, the protrusion moves downward along the spiral channel and out from the end, allowing the entire inner bottle to be removed. Then, the protrusion of a new inner bottle containing cosmetics is inserted from the limiting groove into the spiral channel. Reversing the rotation of the rotating sleeve causes the protrusion to rotate and move upward along the spiral channel. When the limiting protrusion is engaged in the limiting groove, the inner bottle is fixed, completing one replacement. This knob-type replaceable vacuum bottle allows for convenient replacement of the inner liner, enabling the reuse of the outer bottle, reducing practical costs and being more environmentally friendly. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0015] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model.
[0016] Figure 3 This is an exploded structural diagram of an embodiment of the present utility model.
[0017] Figure 4 This is a schematic diagram of the rotating sleeve in an embodiment of the present invention.
[0018] Figure 5 This is a schematic diagram of the connecting sleeve in an embodiment of the present utility model.
[0019] Figure 6 This is a schematic diagram of the extrusion head in an embodiment of the present invention. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1 to 6 A knob-type replaceable vacuum bottle includes an outer bottle body 1 and an inner bottle body 2. The outer bottle body 1 includes an inner cylinder 3, a connecting sleeve 4, and a rotating sleeve 5. The connecting sleeve 4 is fixedly connected to the outside of the inner cylinder 3. The inner cylinder 3 is provided with a spiral channel 31 that opens to the bottom. The outer wall of the inner bottle body 2 is provided with a protrusion 21 that engages with the spiral channel 31. The inner wall of the connecting sleeve 4 is rotatably connected to the outer wall of the rotating sleeve 5. The rotating sleeve 5 is provided with a guide groove 51 for the protrusion 21 to pass through. The outer wall of the rotating sleeve 5 is provided with a limiting protrusion 52. The inner wall of the connecting sleeve 4 is provided with an arc-shaped groove 41 for the limiting protrusion 52 to rotate inside. The arc-shaped groove 41 is provided with a limiting groove 42 for limiting the limiting protrusion 52. When the limiting protrusion 52 is engaged in the limiting groove 42, the protrusion 21 is limited by the spiral channel 31 and the guide groove 51. When the cosmetics in the inner bottle 2 are used up, rotating the rotating sleeve 5 can disengage the limiting protrusion 52 from the limiting groove 42. During the rotation, driven by the side wall of the guide groove 51, the protrusion 21 can move down along the spiral channel 31 and out from the end, allowing the entire inner bottle 2 to be removed. Then, the protrusion 21 of the new inner bottle 2 containing cosmetics can be inserted from the limiting groove 42 into the spiral channel 31. Rotating the rotating sleeve 5 in the opposite direction will cause the protrusion 21 to rotate and move up along the spiral channel 31. When the limiting protrusion 52 is locked into the limiting groove 42, the inner bottle 2 is fixed, completing one replacement. This knob-type replaceable vacuum bottle allows for convenient replacement of the inner liner, enabling the reuse of the outer bottle 1, reducing practical costs and making it more environmentally friendly.
[0021] Furthermore, the top of the spiral channel 31 is provided with a limiting opening 32 with an upward protrusion at the bottom. When the limiting protrusion 52 is engaged with the limiting groove 42, the protrusion 21 is located within the limiting opening 32. This structure makes the inner bottle 2 more reliably positioned and prevents the protrusion 21 from moving within the spiral channel 31 during use.
[0022] In this embodiment, an annular flange 22 is provided at the mouth of the inner bottle 2, which can cooperate with the dispensing bottle cap to seal the inner bottle 2. This structure facilitates the sealing of the replacement inner bottle 2.
[0023] In this embodiment, a vacuum pump head 6 is provided at the mouth of the inner bottle 2, and a squeezing head 7 is interference-fitted onto the vacuum pump head 6. The squeezing head 7 is provided with a liquid outlet channel 71 that communicates with the liquid outlet of the vacuum pump head 6. This structure allows for easy separation of the squeezing head 7 from the vacuum pump head 6 when the inner bottle 2 needs to be replaced.
[0024] In this embodiment, the top of the inner cylinder 3 has an annular groove 33, and the extrusion head 7 is provided with an extension ring 72 that inserts into the annular groove 33. The inner wall of the extension ring 72 is provided with a limiting rib 73, and the side wall of the annular groove 33 is provided with a notch 34 that matches the limiting rib 73. This structure can prevent the extrusion head 7 from rotating, thus preventing the inner bottle body 2 from rotating and preventing the limiting protrusion 52 from disengaging from the limiting groove 42.
[0025] In this embodiment, the positioning ribs 35 on the outer wall of the inner cylinder 3 engage with the positioning grooves on the inner wall of the connecting sleeve 4 to position the inner cylinder 3 and the connecting sleeve 4. Alignment ribs 36 are provided on the outer wall of the inner cylinder 3, and alignment grooves 43 are provided on the connecting sleeve 4. The inner cylinder 3 and the connecting sleeve 4 are aligned by the alignment ribs 36 engaging with the alignment grooves 43. This structure facilitates the alignment of the inner cylinder 3 and the connecting sleeve 4.
[0026] In this embodiment, a piston 8 is provided inside the inner bottle 2, and an air hole 23 is provided at the bottom of the inner bottle 2.
[0027] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A knob-type replaceable vacuum bottle, comprising an outer bottle body (1) and an inner bottle body (2), characterized in that: The outer bottle body (1) includes an inner cylinder (3), a connecting sleeve (4), and a rotating sleeve (5). The connecting sleeve (4) is fixedly connected to the outside of the inner cylinder (3). The inner cylinder (3) is provided with a spiral channel (31) that opens to the bottom. The outer wall of the inner bottle body (2) is provided with a protrusion (21) that fits into the spiral channel (31). The inner wall of the connecting sleeve (4) is rotatably connected to the outer wall of the rotating sleeve (5). The rotating sleeve (5) is provided with a protrusion (21) for the protrusion (21). The guide groove (51) is inserted, and the outer wall of the rotating sleeve (5) is provided with a limiting protrusion (52). The inner wall of the connecting sleeve (4) is provided with an arc-shaped groove (41) for the limiting protrusion (52) to rotate inside. The arc-shaped groove (41) is provided with a limiting groove (42) for limiting the limiting protrusion (52). When the limiting protrusion (52) is inserted into the limiting groove (42), the protrusion (21) is limited by the spiral channel (31) and the guide groove (51).
2. A knob-type replaceable vacuum bottle as described in claim 1, characterized in that: The spiral channel (31) is provided with a limiting port (32) with an upward protrusion at the bottom. When the limiting protrusion (52) is inserted into the limiting groove (42), the protrusion (21) is located inside the limiting port (32).
3. A knob-type replaceable vacuum bottle as described in claim 1, characterized in that: The inner bottle (2) is provided with an annular flange (22) at the bottle mouth, and the annular flange (22) can cooperate with the dispensing bottle cap to seal the inner bottle (2).
4. A knob-type replaceable vacuum bottle as described in claim 1, characterized in that: A vacuum pump head (6) is provided at the mouth of the inner bottle (2). A squeeze head (7) is interference-fitted on the vacuum pump head (6). A liquid outlet channel (71) is provided on the squeeze head (7) and communicates with the liquid outlet of the vacuum pump head (6).
5. A knob-type replaceable vacuum bottle as described in claim 4, characterized in that: The inner cylinder (3) has an annular groove (33) at the top, and the extrusion head (7) is provided with an extension ring (72) that is inserted into the annular groove (33). The inner wall of the extension ring (72) is provided with a limiting rib (73), and the side wall of the annular groove (33) is provided with a notch (34) that matches the limiting rib (73).
6. A knob-type replaceable vacuum bottle as described in claim 1, characterized in that: The positioning rib (35) on the outer wall of the inner cylinder (3) is engaged in the positioning groove on the inner wall of the connecting sleeve (4) to position the inner cylinder (3) and the connecting sleeve (4). The outer wall of the inner cylinder (3) is provided with alignment rib (36), and the connecting sleeve (4) is provided with alignment groove (43). The inner cylinder (3) and the connecting sleeve (4) are aligned by the alignment rib (36) being engaged in the alignment groove (43).
7. A knob-type replaceable vacuum bottle as described in claim 1, characterized in that: A piston (8) is provided inside the inner bottle (2), and an air hole (23) is provided at the bottom of the inner bottle (2).