Replaceable packaging bottle with automatic inner bottle rotation
The automatic inner bottle rotation design solves the problems of multiple rotations and appearance issues associated with existing replaceable packaging bottles, achieving a sealing and aesthetically pleasing effect without the need for additional rotation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YUNNAN BOTANEE BIO TECH GRP CO LTD
- Filing Date
- 2026-04-21
- Publication Date
- 2026-06-05
AI Technical Summary
Existing replaceable packaging bottles require multiple rotations during replacement, affecting sealing and aesthetics, and the straight bottom section disrupts the product's overall integrity.
By designing a replaceable packaging bottle with an automatically rotating inner bottle, the inner bottle component can be moved upward synchronously by simply rotating the outer bottle to achieve a seal. After replacement, the outer bottle moves downward to hide the replacement component, revealing the brand logo or visual communication information.
It allows for the replacement of the inner bottle without additional rotation, maintaining the overall appearance of the product, and the visible surface in the middle can be used to place the brand logo, enhancing the aesthetics of the packaging.
Smart Images
Figure CN122144295A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of cosmetic packaging technology, specifically relating to a replaceable packaging bottle with an automatically rotating inner bottle. Background Technology
[0002] Most existing replaceable packaging bottles are assembled and replaced by rotating the threads on the inner bottle neck. To ensure the airtightness of the vacuum bottle products, the number of rotations of the threads is relatively large.
[0003] Please see Figure 1 Furthermore, existing replaceable packaging bottles, after replacement, often have a straight section 2' (bottom of the inner bottle) at the bottom that differs from the bottle body 1'. This straight section 2' serves as a grip when screwing in during replacement, but the straight section 2' at the bottom disrupts the overall appearance of the product. Since consumers usually look down when using the product, it also fails to achieve a good visual communication effect and affects the aesthetics of the packaging. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a replaceable packaging bottle with an automatically rotating inner bottle. During replacement, simply rotating the outer bottle will cause the inner bottle assembly to move upward synchronously, forming a seal between the inner bottle and the pump core assembly, eliminating the need for consumers to rotate the replacement components. After replacement, there is no extra straight section at the bottom, which will not damage the overall appearance of the product. Furthermore, a visible surface will be exposed in the middle of the packaging bottle, where a brand logo or other visual communication information can be placed, making the overall product packaging more aesthetically pleasing.
[0005] The technical solution to achieve the above objective is: a replaceable packaging bottle with an automatically rotating inner bottle, comprising a retaining component and a replacement component, wherein: The retaining assembly includes a button cap, a pump core, a shoulder sleeve, a guide rail sleeve, and an outer bottle; the middle part of the pump core is interference-fitted into the shoulder sleeve; the button cap is installed on the upper end of the pump core; the lower part of the shoulder sleeve is engaged with the upper part of the guide rail sleeve; the upper part of the side wall of the guide rail sleeve has three upper guide rails, and the top of the side wall of the guide rail sleeve has three downward-facing upper guide grooves, the bottom ends of the three upper guide grooves corresponding to the upper ends of the three upper guide rails; the lower part of the side wall of the guide rail sleeve has three lower guide rails, and the bottom end of the guide rail sleeve has three upward-facing lower guide grooves, the top ends of the three lower guide grooves corresponding to the bottom ends of the three lower guide rails. The three upper guide grooves and three lower guide grooves are arranged in a one-to-one correspondence, and the three upper guide rails are spiraled clockwise from top to bottom, while the three lower guide rails are spiraled clockwise from bottom to top. Three outer bottle guide posts are provided along the same circumference on the upper part of the inner wall of the outer bottle, and three outer bottle positioning grooves are provided on the lower part of the inner wall of the outer bottle. The three outer bottle guide posts are located directly above the three outer bottle positioning grooves. After passing through the corresponding upper guide grooves, the three outer bottle guide posts are inserted into the three upper guide rails, and the three lower guide grooves coincide with the three outer bottle positioning grooves. Each outer bottle guide post moves along its corresponding upper guide rail to achieve relative lifting and lowering of the outer bottle. The replacement assembly includes an inner bottle, a piston, and a bottom cap. The piston is interference-fitted into the inner bottle. The bottom cap includes a bottom cap base plate and an inner and outer bottom cap cylinder disposed thereon. The inner bottom cap cylinder is interference-fitted into the lower opening of the inner bottle, and the outer bottom cap cylinder is sleeved outside the lower opening of the inner bottle. Three bottom cap guide posts are provided on the outer side wall of the outer bottom cap cylinder along the same circumference. The inner bottle is set inside the guide rail sleeve. The three bottom cover guide posts pass through the corresponding lower guide grooves and are inserted into the three lower guide rails one by one. The end of each bottom cover guide post is inserted into the corresponding outer bottle positioning groove. Each bottom cover guide post moves along the corresponding lower guide rail under the action of the outer bottle positioning groove to realize the relative lifting and lowering of the inner bottle. During replacement, rotate the shoulder sleeve or outer bottle to raise the outer bottle and expose the bottom cap. After replacement, rotate the shoulder sleeve or outer bottle. As the outer bottle moves down, the guide sleeve drives the inner bottle to move up synchronously, so that the bottle mouth of the inner bottle is screwed into the lower part of the shoulder sleeve. The lower part of the pump core is inserted into the inner bottle. The bottom rubber gasket of the pump core is press-fitted with the bottle mouth of the inner bottle to form a seal. At the same time, the outer bottle moves down to hide the replacement component.
[0006] The above-mentioned replaceable packaging bottle with automatic inner bottle rotation is provided with anti-rotation grooves at the connection between each upper guide rail and the upper guide groove, and at the lower end of each upper guide rail. Each anti-rotation groove is provided with an upper guide rail stop point, and each upper guide rail stop point is provided with an elastic notch next to it. Each lower guide rail is provided with an anti-rotation groove at the connection between the lower guide rail and the lower guide groove, and at the upper end of each lower guide rail. Each anti-rotation groove is provided with a lower guide rail stop point, and each lower guide rail stop point is provided with an elastic notch.
[0007] The aforementioned replaceable packaging bottle with an automatically rotating inner bottle, wherein the step distance A of the upper guide rail is the same as the step distance B of the lower guide rail, the outer bottle guide post spirals downward through the corresponding upper guide rail with a height distance Ha and a rotation arc length La; the bottom cap guide post spirals upward through the lower guide rail with a height distance Hb and a rotation arc length Lb; and Ha=Hb, La=Lb.
[0008] In the aforementioned replaceable packaging bottle with an automatically rotating inner bottle, when the outer bottle moves into position, the height of the exposed bottom cap is Hc, where Hc = Ha + Hb.
[0009] The aforementioned replaceable packaging bottle with an automatically rotating inner bottle has a logo display area on the outer wall of the outer bottle. When the outer bottle is lowered to hide the replacement component, the logo display area is exposed.
[0010] The aforementioned replaceable packaging bottle with an automatically screw-on inner bottle includes an outer cap as part of the retaining component. The lower part of the inner wall of the outer cap has an outer cap groove, and the middle part of the outer wall of the shoulder sleeve has several locking points. The outer cap covers the cap and the shoulder sleeve, and the locking points engage with the outer cap groove.
[0011] In the aforementioned replaceable packaging bottle with an automatically rotating inner bottle, the pump core is engaged with the shoulder sleeve protrusion at the middle of the inner wall of the shoulder sleeve via a pump core concave ring in its middle portion; the push cap is engaged with the pump core slot at the upper end of the pump core via a push cap protrusion on its internal hollow column.
[0012] The aforementioned replaceable packaging bottle with an automatically rotating inner bottle comprises a lower shoulder sleeve protruding ring and three shoulder sleeve protruding ribs located above the lower part of the inner wall of the shoulder sleeve, a guide sleeve protruding ring on the upper part of the outer wall of the guide sleeve, and three guide sleeve notches on the top of the guide sleeve; the lower shoulder sleeve protruding ring is engaged above the guide sleeve protruding ring, and the three shoulder sleeve protruding ribs are inserted into the three guide sleeve notches one by one to form a rotation-stopping limit.
[0013] In the aforementioned replaceable packaging bottle with an automatically rotating inner bottle, the three guide sleeve notches and the three upper guide grooves are spaced apart, and the included angle between each guide sleeve notch and the upper guide groove is 60°.
[0014] The aforementioned replaceable packaging bottle with an automatically screw-on inner bottle includes a replacement cap and a gasket. The gasket is installed inside the replacement cap, the replacement cap is threaded to the outside of the bottle opening of the inner bottle, and the gasket seals the bottle opening of the inner bottle.
[0015] The aforementioned replaceable packaging bottle with an automatically rotating inner bottle includes a bottom cap retaining platform and several bottom cap positioning clips located below it on the outer wall of the bottom cap inner cylinder. The inner wall of the lower opening of the inner bottle is provided with an inner bottle retaining groove and several inner bottle positioning grooves located below it. The bottom cap retaining platform is engaged in the inner bottle retaining groove, and the several bottom cap positioning clips are engaged in the several inner bottle positioning grooves one by one.
[0016] In the aforementioned replaceable packaging bottle with an automatically rotating inner bottle, the outer edge of the bottom cover plate extends to the outside of the outer cylinder of the bottom cover to form an annular edge.
[0017] The replaceable packaging bottle of this invention features an automatically rotating inner bottle. When the consumer needs to replace it, they only need to rotate the shoulder strap or outer bottle 90°. The outer bottle moves upward, exposing the bottom cap of the replacement component. The exposed height is twice the height of the outer bottle's upward movement. The consumer simply holds the annular edge of the bottom cap and gently pulls it out to separate the used inner bottle from the retaining component. The new replacement component is then gently pressed in, and the outer bottle is rotated. As the outer bottle moves downward, it causes the inner bottle to move upward synchronously, forming a seal between the inner bottle and the pump core. No additional rotation of the replacement component is required from the consumer. Simultaneously, the outer bottle exposes the central logo display area. This completes one replacement process. After replacement, the bottom section does not disrupt the overall integrity of the packaging, and a visible surface (logo display area) is exposed in the middle. The brand logo or other visually relevant information can be placed on this visible surface, making the overall product packaging more aesthetically pleasing. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a replaceable packaging bottle in the prior art; Figure 2 This is an external structural diagram of the replaceable packaging bottle with an automatically rotating inner bottle according to the present invention (the outer bottle moves down to hide the inner bottle). Figure 3 This is a cross-sectional view of the replaceable packaging bottle with an automatically rotating inner bottle according to the present invention (the outer bottle moves down to hide the inner bottle). Figure 4 This is a diagram showing the replacement state of the replaceable packaging bottle with an automatically rotating inner bottle according to the present invention (the outer bottle moves up to expose the bottom cap). Figure 5 A cross-sectional view of the replaceable packaging bottle with automatic inner bottle screw-up according to the present invention in a replacement state; Figure 6 A schematic diagram showing the connection between the outer bottle and the shoulder sleeve when the outer bottle is moved upwards to expose the bottom cap; Figure 7 To retain the structural diagram of the component; Figure 8 A structural diagram of the replacement component; Figure 9 A schematic diagram of the external structure of the replacement component; Figure 10 This is a schematic diagram of the outer cover structure; Figure 11 This is a schematic diagram of the pump core structure; Figure 12 This is the front view of the shoulder strap; Figure 13 This is a sectional view of the shoulder cover; Figure 14 This is a bottom view of the shoulder cover; Figure 15 This is a three-dimensional structural diagram of the guide rail sleeve; Figure 16 This is the front view of the guide rail sleeve; Figure 17 This is a side view of the guide rail sleeve; Figure 18 This is a sectional view of the guide rail sleeve; Figure 19 This is a cross-sectional view of the other side of the guide rail sleeve; Figure 20 This is a top view of the guide rail sleeve; Figure 21 This is a three-dimensional structural diagram of the outer bottle (view from top). Figure 22 This is a three-dimensional structural diagram of the outer bottle (viewed from below). Figure 23 This is a top view of the outer bottle; Figure 24 This is a schematic diagram of the inner bottle's structure; Figure 25 This is a bottom view of the inner bottle; Figure 26 This is a three-dimensional structural diagram of the bottom cover; Figure 27 This is a sectional view of the bottom cover. Detailed Implementation
[0019] To enable those skilled in the art to better understand the technical solution of the present invention, its specific embodiments are described in detail below with reference to the accompanying drawings: Please see Figures 2 to 27 According to the preferred embodiment of the present invention, a replaceable packaging bottle with an automatically rotating inner bottle includes a retaining component and a replacement component.
[0020] Please see again Figure 7The retaining components include an outer cover 1, a push cap 2, a pump core 3, a shoulder sleeve 4, a guide rail sleeve 5, and an outer bottle 6. The pump core 3 is interference-fitted into the shoulder sleeve 4. Specifically, a pump core concave ring 31 is provided in the middle of the outer side of the pump core 3, and a shoulder sleeve convex ring 41 is provided in the middle of the inner wall of the shoulder sleeve 4. The shoulder sleeve convex ring 41 is engaged in the pump core concave ring 31, so that the pump core 3 and the shoulder sleeve 4 are engaged together. The push cap 2 is installed on the upper end of the pump core 3. Specifically, a push cap convex ring is provided on the hollow cylinder inside the push cap 2, and a pump core slot is provided in the upper end of the pump core 3. The push cap convex ring is engaged in the pump core slot. The lower part of the shoulder sleeve 4 is engaged with the upper part of the guide sleeve 5. Specifically, the lower part of the inner wall of the shoulder sleeve 4 is provided with a lower shoulder sleeve protrusion ring 42 and three shoulder sleeve protrusion ribs 43 located above it. The upper part of the outer wall of the guide sleeve 5 is provided with a guide sleeve protrusion ring 51, and the top of the guide sleeve 5 is provided with three guide sleeve notches 52. The lower shoulder sleeve protrusion ring 42 is engaged with the upper part of the guide sleeve protrusion ring 51, and the three shoulder sleeve protrusion ribs 43 are inserted into the three guide sleeve notches 52 one by one to form a rotation stop limit. The lower part of the inner wall of the outer cover 1 is provided with an outer cover groove 11, and the middle part of the outer wall of the shoulder sleeve 4 is provided with several locking points 44. The outer cover 1 covers the button 2 and the shoulder sleeve 4, and the locking points 44 are engaged in the outer cover groove 11, so that the outer cover 1 and the shoulder sleeve 4 are engaged together.
[0021] Please see again Figures 15 to 20 The upper part of the side wall of the guide sleeve 5 is provided with three upper guide rails 53, and the top of the side wall of the guide sleeve 5 is provided with three upper guide grooves 54 downward. The bottom of the three upper guide grooves 54 are connected to the upper ends of the three upper guide rails 53 respectively. The lower part of the side wall of the guide sleeve 5 is provided with three lower guide rails 55, and the bottom of the guide sleeve 5 is provided with three lower guide grooves 56 upward. The top of the three lower guide grooves 56 are connected to the bottom ends of the three lower guide rails 55 respectively. The three upper guide grooves 54 and the three lower guide grooves 56 are arranged in a one-to-one correspondence. The three upper guide rails 53 are spiraled clockwise from top to bottom, and the three lower guide rails 55 are spiraled clockwise from bottom to top.
[0022] The three guide sleeve notches 52 and the three upper guide grooves 54 are distributed at intervals, and the included angle α between each guide sleeve notch 52 and the upper guide groove 54 is 60°.
[0023] Please see again Figures 21 to 23 The upper part of the inner wall of the outer bottle 6 is provided with three outer bottle guide posts 61 along the same circumference, and the lower part of the inner wall of the outer bottle 6 is provided with three outer bottle positioning grooves 62. The three outer bottle guide posts 61 are located directly above the three outer bottle positioning grooves 62. After passing through the corresponding upper guide grooves 54, the three outer bottle guide posts 61 are inserted into the three upper guide rails 53 one by one, and the three lower guide grooves 56 overlap with the three outer bottle positioning grooves 62 one by one.
[0024] After passing through the corresponding upper guide grooves 54, the three outer bottle guide posts 61 are inserted into the three upper guide rails 53 one by one; each outer bottle guide post 61 moves along the corresponding upper guide rail 53 to realize the relative lifting and lowering of the outer bottle 6.
[0025] Please see again Figures 8 to 9 The replacement components include an inner bottle 7, a piston 8, and a bottom cap 9. The piston 8 is interference-fitted into the inner bottle 7. The bottom cap 9 includes a bottom cap base plate 91 and an inner bottom cap cylinder 92 and an outer bottom cap cylinder 93 disposed thereon. The inner bottom cap cylinder 92 is interference-fitted into the lower opening of the inner bottle 7. For details, please refer to [link to relevant documentation]. Figures 24 to 27 The outer wall of the inner cylinder 92 of the bottom cap is provided with a bottom cap retaining platform 922 and three bottom cap positioning tools 921 located below it. The inner wall of the lower opening of the inner bottle 7 is provided with an inner bottle retaining groove 72 and three inner bottle positioning grooves 71 located below it. The bottom cap retaining platform 922 is engaged in the inner bottle retaining groove 72, and the three bottom cap positioning tools 921 are engaged in the three inner bottle positioning grooves 71 in a corresponding manner, which plays a role in preventing rotation. The outer cylinder 93 of the bottom cap is fitted over the lower opening of the inner bottle 7; three bottom cap guide posts 94 are provided along the same circumference on the outer wall of the outer cylinder 93 of the bottom cap.
[0026] Please see again Figures 2 to 5 When installing replacement components, the inner bottle 7 is placed inside the guide rail sleeve 5. The three bottom cover guide posts 94 pass through the corresponding lower guide grooves 56 and are inserted into the three lower guide rails 55 one by one. The end of each bottom cover guide post 94 is inserted into the corresponding outer bottle positioning groove 62. Under the action of the outer bottle positioning groove 62, each bottom cover guide post 94 moves along the corresponding lower guide rail 55 to realize the relative lifting and lowering of the inner bottle.
[0027] During replacement, rotate the shoulder sleeve 4 or the outer bottle 6 to raise the outer bottle 6 and expose the bottom cover 9. Then, hold the bottom cover 9 and pull out the inner bottle. After replacement, rotate the shoulder sleeve 4 or the outer bottle 6. When the outer bottle 6 moves down, it drives the inner bottle 7 to move up synchronously through the guide sleeve. This allows the bottle mouth of the inner bottle 7 to be threaded into the lower part of the shoulder sleeve 4. The lower part of the pump core 3 is inserted into the inner bottle 7. The bottom rubber gasket of the pump core 3 is press-fitted with the bottle mouth of the inner bottle 7 to form a seal. At the same time, the outer bottle moves down to hide the replacement components.
[0028] The step distance A of the upper guide rail 53 is the same as the step distance B of the lower guide rail 55. The outer bottle guide post 61 spirals downward through the corresponding upper guide rail 53 for a distance Ha, and the arc length of rotation is La. The bottom cover guide post spirals upward through the lower guide rail for a distance Hb, and the arc length of rotation is Lb. Ha = Hb, and La = Lb. When the outer bottle moves into position, the height of the exposed bottom cover 9 is Hc, where Hc = Ha + Hb.
[0029] Preferably, the replacement assembly further includes a replacement cap 10 and a gasket 101. The gasket 101 is installed inside the replacement cap 10. After the internal thread of the replacement cap 10 engages with the external thread of the bottle opening of the inner bottle 7, the gasket 101 is pressed against the opening of the inner bottle 7 to seal the bottle opening. When a new replacement assembly is needed, the replacement cap 10 and gasket 101 are removed, and then the inner bottle 7 with the piston 8 and bottom cap 9 is inserted into the retention assembly.
[0030] The outer edge of the bottom cover plate 91 extends to the outside of the outer cylinder of the bottom cover to form an annular edge 95, which is convenient for gripping. Correspondingly, the bottom of the inner wall of the outer bottle 6 has an annular groove 64 that matches the annular edge 95. After the replacement component is installed in place, the annular edge 95 is exactly located in the annular groove 64 of the outer bottle, and the outer bottle 6 can completely hide the replacement component.
[0031] Further, please refer to Figure 6 The outer bottle 6 is also provided with an outer bottle retainer 65 on its outer wall, and the inner wall of the shoulder sleeve 4 is provided with a shoulder sleeve retainer 45. The shoulder sleeve retainer 45 is located below the lower protruding ring 42 of the shoulder sleeve. When the outer bottle 6 moves up to expose the bottom cover 9, the outer bottle retainer 65 is located above the shoulder sleeve retainer 45 when the outer bottle 6 moves up to the correct position, thereby limiting the outer bottle 6 of the shoulder sleeve 4. When the inner bottle that has been used up is pulled off by holding the annular edge 95, the outer bottle 6 will not move relative to the inner bottle.
[0032] Each upper guide rail 53 is provided with an anti-rotation groove (the end position of the upper guide groove 54 or the starting position of the upper guide rail 53) at the connection between the upper guide rail 53 and the upper guide groove 54. An upper guide rail stop point 531 is provided in the anti-rotation groove. An anti-rotation groove (the end position of the upper guide rail 53) is provided in the lower end of each upper guide rail 53. An upper guide rail stop point 532 is provided in the anti-rotation groove. There is an elastic notch 533 next to each upper guide rail stop point. The upper guide rail stop points 531 and 532 are designed to allow the outer bottle guide post 61 to cross over and enter the corresponding anti-rotation groove, so that it will not easily move into the upper guide rail 53 due to transportation, express delivery or other reasons.
[0033] Each lower guide rail is provided with an anti-rotation groove at the connection between the lower guide rail and the lower guide groove, and at the upper end of each lower guide rail. Each anti-rotation groove is provided with a lower guide rail stop point, and each lower guide rail stop point is provided with an elastic notch.
[0034] Similarly, each lower guide rail 55 is provided with an anti-rotation groove (at the end of the lower guide groove 56 or the beginning of the lower guide rail 55) at the connection between it and the lower guide groove 56. A lower guide rail stop 551 is provided within this anti-rotation groove. Each lower guide rail 55 also has an anti-rotation groove at its upper end (at the end of the lower guide rail 55), with a lower guide rail stop 552 within this groove. Each lower guide rail stop has an elastic notch 553 next to it. Both the lower guide rail stops 551 and 552 are designed to allow the bottom cover guide post 84 to pass through and enter the corresponding anti-rotation groove, preventing the bottom cover guide post 94 from entering the lower guide rail due to transportation, express delivery, or other reasons.
[0035] The elastic notches at the corresponding stops allow the guide posts to smoothly cross the corresponding stops and enter the corresponding guide rails.
[0036] The outer bottle 6 has a logo display area 63 around its outer wall. When the outer bottle 6 is lowered to hide the replacement component, the logo display area 63 is exposed. The logo display area 63 can be set with the brand logo or other visual communication information.
[0037] In the assembly of the retaining components, when assembling the outer bottle 6 and the guide sleeve 5, the outer bottle guide post 61 is inserted through the upper guide groove 54 of the guide sleeve 5. After it is in place, the outer bottle 6 continues to rotate counterclockwise, causing the outer bottle guide post 61 to cross the upper guide rail stop 531 and enter the starting position of the upper guide rail 53. The upper guide rail stop 531 serves to restrict the rotation of the guide sleeve 5 and the outer bottle 6 when not in use. At this time, the three lower guide grooves 56 of the guide sleeve 5 coincide with the outer bottle positioning groove 62 of the outer bottle 6. Initially, the outer bottle guide post 61 is located at the starting position of the upper guide rail 53.
[0038] The replaceable packaging bottle of this invention features an automatically rotating inner bottle. When replacing the inner bottle, the consumer only needs to rotate the outer bottle 90°, causing it to rise and expose the bottom cap of the replacement component. The exposed height is twice the height of the outer bottle's upward movement. The consumer can then gently pull out the used inner bottle component by holding the annular edge of the bottom cap, separating it from the retained component. The new replacement is then gently pressed in, and the outer bottle is rotated. As the outer bottle moves downward, it causes the inner bottle to rise synchronously, forming a seal between the inner bottle and the pump core. No additional rotation of the replacement component is required from the consumer. Simultaneously, the logo in the center of the outer bottle is exposed, completing one replacement cycle.
[0039] The replacement packaging bottle with an automatically screw-on inner bottle according to the present invention has the following detailed replacement process: After the consumer has finished using the product, first remove the used replacement component. Hold the outer bottle 6 and shoulder sleeve 4, and rotate the shoulder sleeve 4 clockwise or the outer bottle 6 counterclockwise so that the shoulder sleeve 4 and the outer bottle 6 rotate in opposite directions. The outer bottle guide post 61 crosses the upper guide rail stop 532 (the end position of the upper guide rail 53) and enters the upper guide rail 53, while the bottom cover guide post 94 crosses the lower guide rail stop 552 (the end position of the lower guide rail 55) and enters the lower guide rail 55. The outer bottle 6 rotates upward along the upper guide rail 53. The replacement component moves vertically downward along the lower guide rail 55. Continue rotating so that the outer bottle guide post 61 and the bottom cover guide post 94 cross the corresponding upper guide rail stop 531 and lower guide rail stop 551, entering the corresponding starting position. At this time, the bottom cover 9 is exposed outside the outer bottle 6, and its exposed height is Hc, where Hc = Ha + Hb. Grasp the annular edge 95 of the bottom cover 9 and gently pull it outward to separate the used replacement component from the retained component.
[0040] Then remove the unused replacement component, unscrew the replacement cap 10, and remove the gasket 101. Insert the bottom cap guide post 94 of the bottom cap 9 into the lower guide groove 56 of the guide sleeve 5 and the positioning groove 61 of the outer bottle 6. Gently push it inwards. At this point, the bottom cap guide post 94 will cross the lower guide rail stop 551 of the guide rail sleeve 5. Due to the corresponding anti-rotation groove having a shape that is smaller at the top and larger at the bottom, after the bottom cap guide post 94 passes the lower guide rail stop 551, it is blocked by the upper end of the lower guide rail stop 551 and will not easily fall down. Now the replacement component has been installed into the retaining component. Hold the outer bottle 6 and the shoulder sleeve 4, and rotate the shoulder sleeve 4 counterclockwise or the outer bottle 6 clockwise to make the shoulder sleeve 4 and the outer bottle 6 rotate in opposite directions. During rotation, the outer bottle guide post 61 crosses the upper guide rail stop 531 (the starting position of guide rail 53) and enters the upper guide rail 52, while the bottom cover guide post 94 enters the lower guide rail 55; the outer bottle 6 rotates downwards due to the upper guide rail 52. Due to the function of the outer bottle positioning groove 62, the replacement component can only move vertically upwards along the lower guide rail 55. Continuing to rotate, once the bottom cover 9 is covered by the outer bottle 6, further rotation causes the outer bottle guide post 61 and the bottom cover guide post 94 to cross the upper guide rail stop 532 and the lower guide rail stop 552 respectively, entering their corresponding termination positions. Due to the function of each stop, the replacement component will not easily separate from the retaining component during use. As the replacement component moves upwards, the pump core 3 penetrates the inner bottle 7, and the bottom rubber gasket of the pump core 3 forms a seal with the bottle opening of the inner bottle 7 through an interference fit. At this point, the bottom cover 9 is hidden inside the outer bottle 6, preserving the overall appearance. Meanwhile, the logo 63 on the outer bottle is displayed in the middle of the product, providing consumers with a better visual communication effect. At this point, consumers can press the cap to use the product normally.
[0041] In summary, the replaceable packaging bottle with automatic inner bottle rotation of the present invention allows the inner bottle assembly to move synchronously upward simply by rotating the outer bottle during replacement, forming a seal between the inner bottle and the pump core, eliminating the need for consumers to rotate the replacement components. After replacement, the bottom has no extra straight section, preserving the overall appearance of the product. Furthermore, a visible surface is exposed in the middle of the packaging bottle, where a brand logo or other visually relevant information can be placed, making the overall product packaging more aesthetically pleasing.
[0042] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any variations or modifications to the above embodiments that are within the spirit and essence of the present invention will fall within the scope of the claims of the present invention.
Claims
1. A replaceable packaging bottle with an automatically screw-on inner bottle, characterized in that, This includes retained components and replaced components, where: The retaining assembly includes a button cap, a pump core, a shoulder sleeve, a guide rail sleeve, and an outer bottle; the middle part of the pump core is interference-fitted into the shoulder sleeve; the button cap is installed on the upper end of the pump core; the lower part of the shoulder sleeve is engaged with the upper part of the guide rail sleeve; the upper part of the side wall of the guide rail sleeve has three upper guide rails, and the top of the side wall of the guide rail sleeve has three downward-facing upper guide grooves, the bottom ends of the three upper guide grooves corresponding to the upper ends of the three upper guide rails; the lower part of the side wall of the guide rail sleeve has three lower guide rails, and the bottom end of the guide rail sleeve has three upward-facing lower guide grooves, the top ends of the three lower guide grooves corresponding to the bottom ends of the three lower guide rails. The three upper guide grooves and three lower guide grooves are arranged in a one-to-one correspondence, and the three upper guide rails are spiraled clockwise from top to bottom, while the three lower guide rails are spiraled clockwise from bottom to top. Three outer bottle guide posts are provided along the same circumference on the upper part of the inner wall of the outer bottle, and three outer bottle positioning grooves are provided on the lower part of the inner wall of the outer bottle. The three outer bottle guide posts are located directly above the three outer bottle positioning grooves. After passing through the corresponding upper guide grooves, the three outer bottle guide posts are inserted into the three upper guide rails, and the three lower guide grooves coincide with the three outer bottle positioning grooves. Each outer bottle guide post moves along its corresponding upper guide rail to achieve relative lifting and lowering of the outer bottle. The replacement assembly includes an inner bottle, a piston, and a bottom cap. The piston is interference-fitted into the inner bottle. The bottom cap includes a bottom cap base plate and an inner and outer bottom cap cylinder disposed thereon. The inner bottom cap cylinder is interference-fitted into the lower opening of the inner bottle, and the outer bottom cap cylinder is sleeved outside the lower opening of the inner bottle. Three bottom cap guide posts are provided on the outer side wall of the outer bottom cap cylinder along the same circumference. The inner bottle is set inside the guide rail sleeve. The three bottom cover guide posts pass through the corresponding lower guide grooves and are inserted into the three lower guide rails one by one. The end of each bottom cover guide post is inserted into the corresponding outer bottle positioning groove. Each bottom cover guide post moves along the corresponding lower guide rail under the action of the outer bottle positioning groove to realize the relative lifting and lowering of the inner bottle. During replacement, rotate the shoulder sleeve or outer bottle to raise the outer bottle and expose the bottom cap. After replacement, rotate the shoulder sleeve or outer bottle. As the outer bottle moves down, the guide sleeve drives the inner bottle to move up synchronously, so that the bottle mouth of the inner bottle is screwed into the lower part of the shoulder sleeve. The lower part of the pump core is inserted into the inner bottle. The bottom rubber gasket of the pump core is press-fitted with the bottle mouth of the inner bottle to form a seal. At the same time, the outer bottle moves down to hide the replacement component.
2. The replaceable packaging bottle with automatic inner bottle screw-on as described in claim 1, characterized in that, Each upper guide rail is provided with an anti-rotation groove at the connection between the upper guide rail and the upper guide groove, and at the lower end of each upper guide rail. Each anti-rotation groove is provided with an upper guide rail stop point, and each upper guide rail stop point is provided with an elastic notch. Each lower guide rail is provided with an anti-rotation groove at the connection between the lower guide rail and the lower guide groove, and at the upper end of each lower guide rail. Each anti-rotation groove is provided with a lower guide rail stop point, and each lower guide rail stop point is provided with an elastic notch.
3. The replaceable packaging bottle with automatic inner bottle screw-on as described in claim 1, characterized in that, The step distance A of the upper guide rail is the same as the step distance B of the lower guide rail. The height distance of the outer bottle guide post spiraling downward through the corresponding upper guide rail is Ha, and the rotation arc length is La. The height distance of the bottom cover guide post spiraling upward through the lower guide rail is Hb, and the rotation arc length is Lb. Ha=Hb, La=Lb.
4. A replaceable packaging bottle with an automatically screw-on inner bottle as described in claim 3, characterized in that, When the outer bottle is moved into place, the height of the exposed bottom cover is Hc, where Hc = Ha + Hb.
5. A replaceable packaging bottle with an automatically screw-on inner bottle as described in claim 1, characterized in that, The outer wall of the outer bottle has a logo display area around it. When the outer bottle is lowered to hide the replacement component, the logo display area is exposed.
6. A replaceable packaging bottle with an automatically screw-on inner bottle as described in claim 1, characterized in that, The retaining component also includes an outer cover, the lower part of the inner wall of the outer cover is provided with an outer cover groove, and the middle part of the outer wall of the shoulder sleeve is provided with several locking points. The outer cover covers the button and the shoulder sleeve, and the locking points are engaged in the outer cover groove.
7. A replaceable packaging bottle with an automatically screw-on inner bottle as described in claim 1, characterized in that, The pump core is engaged with the shoulder sleeve protrusion in the middle of the inner wall of the shoulder sleeve via the pump core concave ring in the middle of its middle; the button cap is engaged with the pump core slot in the upper end of the pump core via the button cap protrusion on its internal hollow column.
8. A replaceable packaging bottle with an automatically screw-on inner bottle as described in claim 1, characterized in that, The lower part of the inner wall of the shoulder sleeve is provided with a lower shoulder sleeve protrusion ring and three shoulder sleeve protrusion ribs located above it. The upper part of the outer wall of the guide sleeve is provided with a guide sleeve protrusion ring. The top of the guide sleeve is provided with three guide sleeve notches. The lower shoulder sleeve protrusion ring is engaged above the guide sleeve protrusion ring, and the three shoulder sleeve protrusion ribs are inserted into the three guide sleeve notches one by one to form a rotation-stopping limit.
9. A replaceable packaging bottle with an automatically screw-on inner bottle as described in claim 8, characterized in that, The three guide sleeve notches and the three upper guide grooves are spaced apart, and the included angle between each guide sleeve notch and the upper guide groove is 60°.
10. A replaceable packaging bottle with an automatically screw-on inner bottle according to claim 1, characterized in that, The replacement assembly also includes a replacement cap and a gasket, the gasket being installed inside the replacement cap, the replacement cap being threaded to the outside of the inner bottle opening, and the gasket sealing the inner bottle opening.
11. A replaceable packaging bottle with an automatically screw-on inner bottle according to claim 1, characterized in that, The outer wall of the inner cylinder of the bottom cover is provided with a bottom cover locking platform and a number of bottom cover positioning tools located below it. The inner wall of the lower opening of the inner bottle is provided with an inner bottle locking groove and a number of inner bottle positioning grooves located below it. The bottom cover locking platform is engaged in the inner bottle locking groove, and the number of bottom cover positioning tools are engaged in the number of inner bottle positioning grooves one by one.
12. A replaceable packaging bottle with an automatically screw-on inner bottle according to claim 1, characterized in that, The outer edge of the bottom cover plate extends to the outside of the outer cylinder of the bottom cover to form an annular edge.