Spiral extrusion sound-tight container

Abstract

The present invention relates to the technical field of packaging containers, and discloses a spiral extrusion sound-tight container. The spiral extrusion sound-tight container of the present invention comprises: an outer bottle, a middle bottle, a bead, a fork, a screw, a bottle stopper, an inner cover and an outer cover. The middle bottle is clamped in the outer bottle, the bead is rotatably mounted in the middle bottle, the fork is provided with right-angled trapezoidal teeth, the fork is buckled in the bead, the spring piece of the middle bottle is embedded between the teeth of the fork, the screw is mounted in the fork and meshes with the fork, the piston ring of the screw is located in the cavity of the bead, the bottle stopper is capped on the bead, and the inner cover is mounted in the outer cover and forms a whole with the outer cover. In the spiral extrusion sound-tight container of the present invention, the spring piece of the middle bottle is embedded between the teeth of the fork, and the spring piece and the teeth form a ratchet structure, so that the screw can only rotate in one direction, the extruded cosmetics will not retreat, and the purity of the cosmetics in the cavity of the bead is ensured; and when the screw rotates, a mechanical sound of shifting gears is emitted, which enhances the experience.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of packaging containers, and in particular to a spirally extruded sound-tight container. Background Art

[0002] Skin is an important tissue of the human body and needs to be properly cared for in daily life.

[0003] Cosmetics are essential for skin care. They come in a variety of forms, such as solid pastes and liquids with a specific viscosity. They are typically stored in containers (bottles) and then squeezed out for use.

[0004] The inventors of this application have discovered that cosmetics are easily oxidized and contaminated by air after being squeezed out. If the squeezed cosmetics return (reflux) into the packaging container, it is easy to cause the cosmetics in the container to be contaminated and deteriorate, shorten the shelf life of the cosmetics, and also affect the subsequent use effect of the cosmetics; and when the cosmetics are squeezed out, no sound prompts are made, which lacks a sense of experience. Summary of the Invention

[0005] The object of the present invention is to provide a spiral extrusion sound-tight container, in which the extruded cosmetics will not fall back, so as to solve the problems in the above-mentioned background technology.

[0006] The embodiment of the present invention provides a spiral extruded sound-tight container, comprising: a bottle assembly, a bottle stopper, and a cap assembly;

[0007] The bottle assembly includes: an outer bottle, a middle bottle, a bead, a fork and a screw;

[0008] The middle bottle is provided with a fixed convex ring, and the bottom plate of the middle bottle is provided with a spring piece and an anti-rotation guide block;

[0009] The middle bottle is placed inside the outer bottle and is buckled with the outer bottle to form a fixed connection, and the fixing convex ring abuts against the end surface of the outer bottle;

[0010] The bead is rotatably mounted in the middle bottle, the top of the bead protrudes from the middle bottle, and the top of the bead is provided with a cavity for storing cosmetics;

[0011] The fork is provided with an internal thread and a retaining tooth, and the longitudinal section of the retaining tooth is a right-angled trapezoid;

[0012] The fork is sleeved in the bead, buckled with the bead to form a fixed connection, and the spring is embedded between two adjacent blocking teeth;

[0013] The screw is provided with a piston ring and a guide groove;

[0014] The screw is sleeved in the fork and meshes with the internal thread of the fork. The piston ring is located in the cavity and the anti-rotation guide block is inserted into the guide groove. When the outer bottle rotates, it drives the screw to rotate.

[0015] The bottle stopper is provided with a discharge hole;

[0016] The bottle stopper is capped on the bead to seal the cavity, and the screw is used to extrude the cosmetics from the discharge hole when rotating;

[0017] The cover assembly includes: an outer cover and an inner cover;

[0018] The inner cover is provided with a sealing convex ring, which is sleeved on the beads when the inner cover is closed, and the sealing convex ring is used to be embedded in the discharge hole to seal the discharge hole;

[0019] The outer cover is buckled on the middle bottle when closed, and the end surface of the outer cover abuts against the fixing convex ring.

[0020] Based on the above scheme, it can be seen that the spiral extrusion sound-tight container of the present invention is provided with an outer bottle, a middle bottle, a bead, a fork, a screw, a bottle stopper, an inner cover, and an outer cover. The bottom plate of the middle bottle is provided with a spring piece and an anti-rotation guide block. The middle bottle is set in the outer bottle. The bead is rotatably set in the middle bottle. The fork is provided with an internal thread and a stopper. The fork is set in the bead. The spring piece of the middle bottle is embedded between the stopper teeth of the fork. The screw is set in the fork and meshes with the fork. The piston ring of the screw is located in the bead cavity, and the anti-rotation guide block of the middle bottle is inserted into the guide groove of the fork. The bottle stopper is closed on the bead, the inner cover is set on the bead, and the outer cover is closed on the inner cover. In the spiral extrusion sound-tight container of the present invention, when the outer bottle rotates relative to the bead, it drives the middle bottle and the screw to rotate together, and the piston ring of the screw moves upward to squeeze out the cosmetic contents in the bead cavity. The spring piece of the middle bottle is embedded in between the teeth of the fork. The cross-section of the teeth is a right-angled trapezoid. The spring piece and the teeth form a ratchet structure, so that the middle bottle (screw) can only rotate in one direction relative to the fork. The piston ring of the screw will not retreat, so that the extruded cosmetics will not retreat into the cavity of the beads, ensuring the purity of the cosmetics in the cavity; and when the screw rotates, the spring piece jumps between the teeth of the fork, making a mechanical sound of jumping gears. The rhythm of the mechanical sound can be adjusted by adjusting the height of the teeth, thereby enhancing the experience.

[0021] In a feasible solution, an anti-retraction block is further provided on the bottom plate of the middle bottle;

[0022] The height of the anti-retraction block is smaller than the height of the spring piece;

[0023] The anti-retraction block is arranged on one side of the elastic sheet and is used to limit the rebound of the elastic sheet.

[0024] In a feasible solution, the bottom of the middle bottle is provided with a first boss, and the side wall of the first boss is provided with a first sound outlet;

[0025] The bottom of the outer bottle is provided with a second boss, and the side wall of the second boss is provided with a second sound outlet;

[0026] The second boss is embedded in the first boss, the second sound outlet hole corresponds to the first sound outlet hole in position, and the first sound outlet hole and the second sound outlet hole form an invisible sound outlet cavity.

[0027] In a feasible solution, the screw includes: a lock;

[0028] The lock buckle is arranged at the bottom end of the screw rod and is used to limit the lifting and lowering of the screw rod to prevent the screw rod from being separated from the fork.

[0029] In a feasible solution, the circumferential side wall of the bead is provided with scale values;

[0030] An indicating notch is provided on the circumferential side wall of the middle bottle, and the scale value and the indicating notch are used to mark the extruded amount of the cosmetic.

[0031] In a feasible solution, the inner wall of the middle bottle is provided with a plurality of protruding stoppers;

[0032] The outer wall of the bead is provided with a limiting double-guide retaining ring, and the limiting double-guide retaining ring is used to be clamped with the protruding retaining buckle to form a replaceable snap buckle structure.

[0033] In a feasible solution, the bead is provided with a limiting protrusion;

[0034] The screw rod is provided with a limiting groove, and the limiting groove is used for the limiting convex ring to be embedded.

[0035] In a feasible solution, the beads are interference fit with the middle bottle;

[0036] The bottle stopper and the inner cover, the sealing convex ring and the bottle stopper, the inner cover and the bead, and the bottle stopper and the bead are all fitted in an interference fit and airtight manner.

[0037] In a feasible solution, the screw rod is provided with a protrusion in the piston ring, and the protrusion is provided with a straight groove or a cross groove.

[0038] In a feasible solution, it also includes: replacing the bottom, replacing the cover and the thermal sheet;

[0039] The beads, the fork, the screw and the bottle stopper are assembled to form a middle bundle core, the heat-sensitive sheet is attached to the discharge hole of the bottle stopper, the replacement bottom and the replacement cover are respectively mounted on the bottom and top ends of the middle bundle core to form a replacement package, and the middle bundle core is used for replacement.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] 1. The retaining teeth are in the shape of a right-angled trapezoid, and the retaining teeth and the spring form a ratchet structure to prevent the extruded cosmetics from returning (backflow).

[0042] 2. During the rotary extrusion process, the spring will produce a mechanical sound of jumping gears, which enhances the experience.

[0043] 3. The beads are equipped with scale lines to achieve quantitative extrusion during use.

[0044] 4. Multiple airtight fits are provided between the various components, making the packaging container waterproof and extending the shelf life of the cosmetics.

[0045] 5. The middle beam core can be replaced after use to reduce consumption costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0047] Figure 1 This is a front view of the spirally extruded sound-tight container in Example 1 of the present invention;

[0048] Figure 2 This is a bottom view of the spirally extruded sound-tight container in Example 1 of the present invention;

[0049] Figure 3 This is an exploded view of the spirally extruded sound-tight container in Example 1 of the present invention;

[0050] Figure 4 For the first embodiment of the present invention Figure 1 Cross-sectional view along the BB direction;

[0051] Figure 5 For the first embodiment of the present invention Figure 2 The AA-direction cross-sectional view;

[0052] Figure 6 For the first embodiment of the present invention Figure 5 A partial enlarged view of the

[0053] Figure 7 For the first embodiment of the present invention Figure 5 Another partial enlarged view in;

[0054] Figure 8 For the first embodiment of the present invention Figure 5 Another partial enlarged view in;

[0055] Figure 9 For the first embodiment of the present invention Figure 2 The cross-sectional view along the CC direction;

[0056] Figure 10 For the first embodiment of the present invention Figure 9 A partial enlarged view of the

[0057] Figure 11 For the first embodiment of the present invention Figure 9 Another partial enlarged view in;

[0058] Figure 12 This is a schematic diagram of a medium bottle in Example 1 of the present invention;

[0059] Figure 13 Schematic diagram of a fork in embodiment 1 of the present invention;

[0060] Figure 14 Schematic diagram of the screw in Example 1 of the present invention;

[0061] Figure 15 is a schematic diagram of a bottle assembly in embodiment 1 of the present invention;

[0062] Figure 16 This is an exploded schematic diagram of the replacement device in the second embodiment of the present invention;

[0063] Figure 17 It is a cross-sectional schematic diagram of the replacement device in the second embodiment of the present invention.

[0064] Numbers in the figure:

[0065] 1. Bottle assembly; 11. Outer bottle; 111. Second boss; 112. Second sound hole; 12. Middle bottle; 121. Fixed convex ring; 122. Bottom plate; 123. Spring piece; 124. Anti-rotation guide block; 125. Slot; 126. Anti-retraction block; 127. First boss; 1271. First sound hole; 128. Indicator notch; 129. Protruding stopper; 13. Bead; 1301. Cavity; 131. Scale value; 132. Positioning double guide stop ring; 1 33. Limiting cam; 14. Fork; 141. Stopper; 142. Positioning groove; 143. Anti-rotation slot; 15. Screw; 151. Piston ring; 152. Guide groove; 153. Locking buckle; 154. Limiting groove; 155. Protrusion; 156. Slotted groove; 2. Bottle stopper; 21. Discharge hole; 3. Cover assembly; 31. Outer cover; 32. Inner cover; 321. Sealing cam; 41. Replacement bottom; 42. Replacement cover; 43. Thermal film; 44. Middle beam core. DETAILED DESCRIPTION

[0066] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0067] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0068] In the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise expressly specified or limited. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0069] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0070] As described in the background of this application, cosmetics have various forms, such as solid pastes and liquids with a certain viscosity. Cosmetics are generally stored in containers (bottles) and then squeezed out of the bottles for use each time.

[0071] The inventors of this application have discovered that cosmetics are easily oxidized and contaminated by air after being squeezed out. If the squeezed cosmetics return (reflux) into the packaging container, it is easy to cause the cosmetics in the container to be contaminated and deteriorate, shorten the shelf life of the cosmetics, and also affect the subsequent use effect of the cosmetics; and when the cosmetics are squeezed out, no sound prompts are made, which lacks a sense of experience.

[0072] In order to solve the above problems, the inventors of this application have proposed the technical solution of this application, and the specific embodiments are as follows:

[0073] Example 1

[0074] Figure 1 This is a front view of the spiral extruded sound-tight container in Example 1 of the present invention. Figure 2 This is a bottom view of the spiral extruded sound-tight container in Example 1 of the present invention. Figure 3 This is an exploded view of the spiral extruded sound-tight container in Example 1 of the present invention. Figure 4 For the first embodiment of the present invention Figure 1 The BB-direction cross-sectional view, Figure 5 For the first embodiment of the present invention Figure 2 The AA-direction cross-sectional view, Figure 6 For the first embodiment of the present invention Figure 5 A partial enlarged view of Figure 7 For the first embodiment of the present invention Figure 5 Another enlarged view of the part, Figure 8 For the first embodiment of the present invention Figure 5 Another partial enlargement of the picture, Figure 9 For the first embodiment of the present invention Figure 2 The cross-sectional view in CC direction, Figure 10 For the first embodiment of the present invention Figure 9 A partial enlarged view of Figure 11 For the first embodiment of the present invention Figure 9 Another enlarged view of the part, Figure 12 This is a schematic diagram of a medium bottle in Example 1 of the present invention. Figure 13 is a schematic diagram of a fork in the first embodiment of the present invention, Figure 14 Schematic diagram of the screw in Example 1 of the present invention, Figure 15 This is a schematic diagram of the bottle assembly in Example 1 of the present invention.

[0075] like Figures 1 to 15 As shown, the spiral extruded sound-tight container of this embodiment includes: a bottle assembly 1, a bottle stopper 2 and a cover assembly 3.

[0076] The bottle assembly 1 includes an outer bottle 11 , a middle bottle 12 , a bead 13 , a fork 14 and a screw 15 .

[0077] The middle bottle 12 is provided with a fixed protruding ring 121 on the circumferential outer wall at the top and a bottom plate 122 at the bottom. The middle bottle 12 is provided with a spring piece 123 and an anti-rotation guide block 124 on the bottom plate 122. The anti-rotation guide block 124 is rectangular and extends vertically upward.

[0078] The outer wall of the bottom end of the middle bottle 12 is provided with a latching groove 125, and the inner wall of the bottom end of the outer bottle 11 is provided with a latching block (not shown). The middle bottle 12 is sleeved inside the outer bottle 11, and the fixing protrusion 121 of the middle bottle 12 abuts against the top end surface of the outer bottle 11. The latching block of the outer bottle 11 is inserted into the latching groove 125 of the middle bottle 12, forming a fixed connection between the middle bottle 12 and the outer bottle 11. When the outer bottle 11 rotates, it drives the middle bottle 12 to rotate together.

[0079] The bead 13 is rotatably sleeved on the inner side of the middle bottle 12 and can rotate relative to the middle bottle 12 and the outer bottle 11. The top of the bead 13 protrudes from the bottle mouth of the middle bottle 12, and the top of the bead 13 is provided with a cavity 1301.

[0080] The inner wall of the top end of the fork 14 is provided with an internal thread, and the bottom end surface of the fork 14 is provided with a plurality of retaining teeth 141 at equal intervals. The longitudinal section of the retaining teeth 141 is a right-angled trapezoid, and a tooth groove is formed between two adjacent retaining teeth 141.

[0081] The top outer wall of the fork 14 is provided with a positioning groove 142, and the fork 14 is provided with an anti-rotation groove 143 in the positioning groove 142. The inner circumferential wall of the bead 13 is provided with a positioning protrusion (not shown), and the bead 13 is provided with an anti-rotation protrusion in the positioning protrusion. The fork 14 is sleeved inside the bead 13, and the positioning protrusion of the bead 13 is embedded in the positioning groove 142 of the fork 14, and the anti-rotation protrusion of the bead 13 is inserted into the anti-rotation groove 143 of the fork 14. The fork 14 and the bead 13 are fixedly connected, so that the fork 14 and the bead 13 are relatively fixed. When the bead 13 rotates, the fork 14 rotates with it. The spring piece 123 on the bottom plate of the middle bottle 12 is embedded in the tooth groove between two adjacent retaining teeth 141 of the fork 14. When the bead 13 rotates relative to the middle bottle 12, the fork 14 is driven to rotate together. Since the cross-section of the retaining teeth 141 of the fork 14 is a right-angled trapezoid, the retaining teeth 141 and the spring piece 123 form a ratchet structure, so that the fork 14 (bead) can only rotate in one direction relative to the middle bottle 12 and cannot rotate in the opposite direction.

[0082] A piston ring 151 is provided at the top of the screw 15 , and a guide groove 152 is provided inside the screw 15 . The guide groove 152 of the screw 15 is adapted to the anti-rotation guide block 124 of the middle bottle 12 .

[0083] Screw 15 is sleeved inside fork 14, meshing with the internal threads at the top of fork 14. The anti-rotation guide block 124 of the middle bottle 12 is inserted into the guide groove 152 of screw 15. A piston ring 151 at the top of screw 15 extends out of fork 14 and into the cavity 1301 of bead 13. Solid paste-like contents or liquid contents with a certain viscosity (cosmetics) are stored in cavity 1301 between piston ring 151 and the mouth of bead 13. When outer bottle 11 rotates relative to bead 13, it drives middle bottle 12 and screw 15 to rotate. Screw 15 moves upward relative to bead 13 and fork 14, and the piston ring 151 of screw 15 squeezes the contents (cosmetics) out of the cavity of bead 13.

[0084] The bottle stopper 2 is provided with a discharge hole 21 .

[0085] The bottle stopper 2 covers the bottle mouth of the bead 13 to seal the cavity 1301 of the bead 13, and the discharge hole 21 of the bottle stopper 2 allows the contents in the cavity 1301 to pass through.

[0086] The cover assembly 3 includes an outer cover 31 and an inner cover 32 .

[0087] The inner cover 32 is sleeved inside the outer cover 31 , and the outer cover 31 and the inner cover 32 form a whole.

[0088] The inner cover 32 is provided with a sealing convex ring 321. When the inner cover 32 is closed, it is sleeved on the outer side of the bead 13, and the sealing convex ring 321 of the inner cover 32 is embedded in the discharge hole 21 of the bottle stopper 2 to block the discharge hole 21 of the bottle stopper 2.

[0089] When the outer cover 31 is closed, it is sleeved on the outer side of the inner cover 32 and the bead 13. The inner wall of the bottom end of the outer cover 31 is snapped onto the outer wall of the top end of the middle bottle 12, and the bottom end surface of the outer cover 31 is abutted against the fixing convex ring 121 of the middle bottle 12. The outer cover 31 covers the bead 13 and the middle bottle 12.

[0090] In this embodiment, a paste-like solid or liquid cosmetic with a certain viscosity is stored in the bead cavity. During use, the outer and inner caps are removed, and the outer bottle is rotated clockwise relative to the bead, driving the screw upward. The screw's piston ring squeezes the cosmetic contents out of the dispensing hole in the bottle stopper. A spring element in the middle bottle is embedded in the groove between two teeth of the fork. Because the teeth are right-angled trapezoidal, the spring element and the teeth form a ratchet structure. The spring element can only pass over the teeth along the trapezoidal inclined surface, not along the right-angled surface of the teeth. This allows the middle bottle (screw) to rotate only in one direction (clockwise) relative to the fork, preventing reverse rotation (counterclockwise). The screw's piston ring does not retract, preventing the extruded cosmetic from flowing back into the bead cavity, thus ensuring the purity of the cosmetics within the cavity. Furthermore, as the screw rotates, the spring element bounces between the teeth of the fork, producing a mechanical sound of shifting gears.

[0091] From the above description, it is not difficult to find that the spiral extrusion sound-tight container of this embodiment is provided with an outer bottle, a middle bottle, a bead, a fork, a screw, a bottle stopper, an inner cap, and an outer cap. The bottom plate of the middle bottle is provided with a spring piece and an anti-rotation guide block. The middle bottle is mounted in the outer bottle. The bead is rotatably mounted in the middle bottle. The fork is provided with an internal thread and a stopper. The fork is mounted in the bead. The spring piece of the middle bottle is embedded between the stopper teeth of the fork. The screw is mounted in the fork and meshes with the fork. The piston ring of the screw is located in the bead cavity. The anti-rotation guide block of the middle bottle is inserted into the guide groove of the fork. The bottle stopper is capped on the bead. The inner cap is mounted on the bead. The outer cap is capped on the inner cap. In this spiral extrusion sound-tight container of this embodiment, when the outer bottle rotates relative to the bead, it drives the middle bottle and the screw to rotate together. The piston ring of the screw moves upward to extrude the cosmetic contents in the bead cavity. The spring piece of the middle bottle is embedded in between the teeth of the fork. The cross-section of the teeth is a right-angled trapezoid. The spring piece and the teeth form a ratchet structure, so that the middle bottle (screw) can only rotate in one direction relative to the fork. The piston ring of the screw will not retreat, so that the extruded cosmetics will not retreat into the cavity of the beads, ensuring the purity of the cosmetics in the cavity; and when the screw rotates, the spring piece jumps between the teeth of the fork, making a mechanical sound of jumping gears. The rhythm of the mechanical sound can be adjusted by adjusting the height of the teeth, thereby enhancing the experience.

[0092] Optional, such as Figure 12 As shown, in the spiral extrusion sound-tight container of this embodiment, the middle bottle 12 is further provided with an anti-retraction block 126 on the bottom plate 122.

[0093] The height of the anti-retraction block 126 is smaller than the height of the elastic piece 123 , and the anti-retraction block 126 is disposed on one side of the elastic piece 123 .

[0094] In this embodiment, the spring element of the medium bottle is embedded between the fork's retaining teeth. After the fork's retaining teeth rotate past the spring element, the spring element rebounds. During this rebound, the anti-return block contacts and abuts the spring element, reducing its rebound amplitude. This prevents the spring element from rebounding too much, causing the fork to rotate back relative to the medium bottle, and causing the extruded cosmetics to return to the bead cavity.

[0095] Optional, such as Figure 10 、 Figure 12 As shown, in the spiral extruded sound-tight container of this embodiment, the middle bottle 12 is provided with a first boss 127 on the bottom plate 122 , and a plurality of first sound outlet holes 1271 are provided at intervals on the circumferential side wall of the first boss 127 .

[0096] A second boss 111 is provided on the bottom plate of the outer bottle 11 , and a plurality of second sound holes 112 are provided at intervals on the circumferential sidewall of the second boss 11 .

[0097] The middle bottle 12 is sleeved on the inner side of the outer bottle 11 , the second boss 111 of the outer bottle 11 is embedded in the first boss 127 of the middle bottle 12 , and the position of the second sound hole 112 of the outer bottle 11 corresponds to the position of the first sound hole 1271 of the middle bottle 12 .

[0098] In this embodiment, the second sound outlet hole in the outer bottle and the first sound outlet hole in the middle bottle form a hidden sound cavity (sound channel), making the sound channel invisible and enhancing the aesthetics of the packaged container. When the fork rotates relative to the middle bottle, the shifting mechanical sound generated by the spring is transmitted through the hidden sound cavity formed by the second and first sound outlet holes.

[0099] Optional, such as Figure 5 、 Figure 9 As shown, in the spiral extrusion sound-tight container in this embodiment, the screw 15 further includes: a lock 153.

[0100] The latch 153 engages the bottom end of the screw 15, forming a fixed connection therewith. The latch 153 is located within the cavity of the fork 14. As the outer bottle 11 and the screw 15 rotate relative to the fork 14, the screw 15 moves upward along the anti-rotation guide block 124 of the middle bottle 12. When the screw 15 reaches its highest point, the latch 153 abuts against the top wall of the cavity of the fork 14, preventing the screw 15 from moving further upward. This prevents the screw 15 from detaching from the fork 14 and entering the cavity of the bead 13.

[0101] Optional, such as Figure 3 、 Figure 12 、 Figure 15 As shown, in the spiral extruded sound-tight container of this embodiment, a plurality of scale values ​​131 are evenly spaced on the circumferential side wall of the bead 13.

[0102] An indicator notch 128 is provided on the circumferential side wall of the middle bottle 12 .

[0103] In this embodiment, when the middle bottle rotates relative to the bead to extrude cosmetics, the spring of the middle bottle jumps between the teeth of the fork once, and a certain amount of cosmetics is extruded. The indicator notch of the middle bottle cooperates with the scale value of the bead to record the number of times the spring jumps, that is, the upward movement distance of the piston ring of the screw is recorded, and the amount of cosmetics extruded when the middle bottle rotates is obtained, so that the cosmetics can be extruded in a quantitative manner, which is more convenient to use.

[0104] Optional, such as Figure 3 、 Figure 6 、 Figure 12 As shown, in the spiral extruded sound-tight container of this embodiment, a plurality of protruding stoppers 129 are provided at equal intervals on the inner wall of the circumference of the middle bottle 12 .

[0105] A double-guide retaining ring 132 is provided on the outer circumference of the bead 13. The bead 13 is positioned within the inner side of the middle bottle 12. The double-guide retaining ring 132 is positioned below the protruding retaining catch 129, abutting against the bottom surface of the protruding retaining catch 129. This retaining ring 132 vertically limits the middle bottle 12 and the bead 13, ensuring greater stability during rotation. The double-guide retaining ring 132 has an isosceles trapezoidal cross-section, with inclined upper and lower end surfaces. Together with the protruding retaining catch 129 of the middle bottle 12, it forms a replaceable snap-fit ​​structure. By grasping the outer bottle 11 and bead 13, the bead 13 can be pulled upward from the middle bottle 12, thereby replacing the middle bundle core described in Example 2.

[0106] Optional, such as Figure 7 、 Figure 11 As shown, in the spiral extrusion sound-tight container of this embodiment, a limiting convex ring 133 is provided on the circumferential inner wall of the bead 13.

[0107] The outer circumferential wall of the screw 15 is provided with a retaining groove 154, which is located below the piston ring 151. The screw 15 is sleeved inside the fork 14. When the screw 15 reaches the bottom, the retaining bead 133 of the ball 13 is embedded in the retaining groove 154 of the screw 15. The retaining bead 133 blocks the screw 15, creating upward resistance during the initial rotation of the screw 15, preventing the screw 15 from rotating due to initial misoperation.

[0108] Optionally, in the spiral extruded sound-tight container of this embodiment, the outer bottle 11 and the outer cover 31 are made of PET (polyethylene terephthalate), and the middle bottle 12, beads 13, fork 14, screw 15, lock 153, bottle stopper 2 and inner cover 32 are made of PP (polypropylene).

[0109] The outer circumferential wall of the bead 13 and the inner circumferential wall of the middle bottle 12 form an interference fit through the arc-shaped groove and the arc-shaped protrusion, so that the bead 13 and the middle bottle 12 generate a damping force when they rotate relative to each other, preventing the bead and the middle bottle from rotating easily, thereby causing the screw to rise and resulting in waste of cosmetics.

[0110] An interference fit is formed between the top surface of the bottle stopper 2 and the bottom surface of the inner cover 32, between the sealing convex ring 321 of the inner cover 32 and the discharge hole 21 of the bottle stopper 2, between the circumferential inner wall of the inner cover 32 and the circumferential outer wall of the bead 13, and between the circumferential outer wall of the bottle stopper 2 and the circumferential inner wall of the bead 13 through arc-shaped grooves and arc-shaped protrusions, thereby forming multiple airtight protections for the packaging container, making the packaging container waterproof and further extending the shelf life of the product.

[0111] The outer bottle 11 and the side wall of the middle bottle 12 are connected by a ring buckle, and the middle bottle 12 and the side wall of the outer cover 31 are connected by a snap buckle.

[0112] Optional, such as Figure 14 As shown, in the spiral extrusion sound-tight container in this embodiment, the screw 15 is provided with a protrusion 155 in the piston ring 151, and the protrusion 155 of the screw 15 is provided with a straight groove 156, or the screw 15 is provided with a cross groove on the protrusion 155.

[0113] In this embodiment, the slot or cross slot on the protrusion is used for inserting a screwdriver, which facilitates the screw to be rotated into place during assembly, and the protrusion on the piston ring can prevent the cosmetic contents in the bead cavity from rotating, thereby fixing the contents.

[0114] Example 2

[0115] Figure 16 This is an exploded schematic diagram of the replacement device in the second embodiment of the present invention. Figure 17 It is a cross-sectional schematic diagram of the replacement device in the second embodiment of the present invention.

[0116] like Figure 16 、 Figure 17 As shown, the spiral extruded sound-tight container in this embodiment further includes: a replacement bottom 41, a replacement cover 42 and a heat-sensitive sheet 43.

[0117] The beads, forks, screws and bottle stoppers described in Example 1 are assembled to form a middle bundle core 44. The thermal sheet 43 is attached to the discharge hole of the bottle stopper. The thermal sheet 43 seals the discharge hole of the bottle stopper. Then the replacement bottom 41 is sleeved on the bottom end of the middle bundle core 44. The replacement cover 42 is sleeved on the top end of the middle bundle core 44. The replacement bottom 41, replacement cover 42, thermal sheet 43 and middle bundle core 44 form a replacement assembly.

[0118] When the cosmetics in the packaging container are used up, the beads (old middle bundle core) are pulled out of the middle bottle. Then the replacement cap and replacement base of the refill are pulled off, and the new middle bundle core is inserted into the middle bottle. The inner and outer caps are then closed to form a new packaging container, which can be used again, reducing consumer costs.

[0119] In the present invention, unless otherwise clearly specified and limited, a first feature being “on” or “under” a second feature may mean that the first feature and the second feature are in direct contact, or the first feature and the second feature are in indirect contact through an intermediate medium.

[0120] Furthermore, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0121] In the description of this specification, reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A spiral extruded sound-tight container, characterized in that: include: bottle assemblies, stopper and cap assemblies; The bottle assembly includes: an outer bottle, a middle bottle, a bead, a fork and a screw; The middle bottle is provided with a fixed convex ring, and the bottom plate of the middle bottle is provided with a spring piece, an anti-rotation guide block and an anti-retraction block; The middle bottle is placed inside the outer bottle and is buckled with the outer bottle to form a fixed connection, and the fixing convex ring abuts against the end surface of the outer bottle; The bead is rotatably mounted in the middle bottle, the top of the bead protrudes from the middle bottle, and the top of the bead is provided with a cavity for storing cosmetics; The fork is provided with an internal thread and a retaining tooth, and the longitudinal section of the retaining tooth is a right-angled trapezoid; The fork is sleeved in the bead, buckled with the bead to form a fixed connection, and the spring is embedded between two adjacent blocking teeth; The height of the anti-retraction block is smaller than the height of the spring piece; The anti-retraction block is arranged on one side of the spring piece and is used to limit the rebound of the spring piece; The screw is provided with a piston ring and a guide groove; The screw is sleeved in the fork and meshes with the internal thread of the fork. The piston ring is located in the cavity and the anti-rotation guide block is inserted into the guide groove. When the outer bottle rotates, it drives the screw to rotate. The bottom of the middle bottle is provided with a first boss, and the side wall of the first boss is provided with a first sound outlet; The bottom of the outer bottle is provided with a second boss, and the side wall of the second boss is provided with a second sound outlet; The second boss is embedded in the first boss, the second sound hole corresponds to the first sound hole, and the first sound hole and the second sound hole form an invisible sound cavity; The bottle stopper is provided with a discharge hole; The bottle stopper is capped on the bead to seal the cavity, and the screw is used to extrude the cosmetics from the discharge hole when rotating; The cover assembly includes: an outer cover and an inner cover; The inner cover is provided with a sealing convex ring, which is sleeved on the beads when the inner cover is closed, and the sealing convex ring is used to be embedded in the discharge hole to seal the discharge hole; The outer cover is buckled on the middle bottle when closed, and the end surface of the outer cover abuts against the fixing convex ring.

2. The spiral extruded sound-tight container according to claim 1, characterized in that: The screw comprises: a lock; The lock buckle is arranged at the bottom end of the screw rod and is used to limit the lifting and lowering of the screw rod to prevent the screw rod from being separated from the fork.

3. The spiral extruded sound-tight container according to claim 1, characterized in that: The circumferential side wall of the bead is provided with scale values; An indicating notch is provided on the circumferential side wall of the middle bottle, and the scale value and the indicating notch are used to mark the extruded amount of the cosmetic.

4. The spiral extruded sound-tight container according to claim 1, characterized in that: The inner wall of the middle bottle is provided with a plurality of protruding stoppers; The outer wall of the bead is provided with a limiting double-guide retaining ring, and the limiting double-guide retaining ring is used to be clamped with the protruding retaining buckle to form a replaceable snap buckle structure.

5. The spiral extruded sound-tight container according to claim 1, characterized in that: The beads are provided with a limiting convex ring; The screw rod is provided with a limiting groove, and the limiting groove is used for the limiting convex ring to be embedded.

6. The spiral extruded sound-tight container according to claim 1, characterized in that: The beads are interference fit with the middle bottle; The bottle stopper and the inner cover, the sealing convex ring and the bottle stopper, the inner cover and the bead, and the bottle stopper and the bead are all fitted in an interference fit and airtight manner.

7. The spiral extruded sound-tight container according to claim 1, characterized in that: The screw rod is provided with a protrusion in the piston ring, and the protrusion is provided with a straight groove or a cross groove.

8. The spirally extruded sound-tight container according to any one of claims 1 to 7, characterized in that: Also includes: Replacement base, replacement cover and thermal film; The beads, the fork, the screw and the bottle stopper are assembled to form a middle bundle core, the heat-sensitive sheet is attached to the discharge hole of the bottle stopper, the replacement bottom and the replacement cover are respectively mounted on the bottom and top ends of the middle bundle core to form a replacement package, and the middle bundle core is used for replacement.

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