Anti-heating pull-out bottle cap

Abstract

The present invention discloses a heat-resistant pull-out prevention bottle cap, which comprises a fixing component and an upper cover component. The fixing component includes an inner main body, an inner plug, a fixing sleeve and an outer main body. The fixing sleeve is sleeved inside the installation section and forms a slot for the bottleneck to be inserted between the inner plug main body. On the upper inner wall of the fixing sleeve, there is a first anti-rotation convex part or a first anti-rotation concave part that cooperates with the first anti-rotation concave part or the first anti-rotation convex part on the bottleneck. At the lower part of the fixing sleeve, there are a plurality of expandable and contractible claws arranged along the circumferential direction. When the inner main body slides downward relative to the fixing sleeve, the lower end of the inner main body slides along the outer side surface of the claws, driving the claws to contract inward. For the heat-resistant pull-out prevention bottle cap of the present invention, the fixing component utilizes the expandable and contractible claws on the fixing sleeve and the bottleneck through the expansion structure design to form an inverted buckle inside the bottle, so that the inner plug and the inner main body are firmly integrated with the bottle. Even if it is softened by heating, the bottle cap cannot be pulled out from the bottleneck without damage, making the bottle cap disposable and achieving the purpose of destroying the cap.

Description

Technical Field

[0001] The present invention relates to the technical field of container lids, and particularly to a heat-resistant pull-out prevention bottle cap. Background Art

[0002] A wine bottle generally consists of a bottle body and a heat-resistant pull-out prevention bottle cap. Usually, the wine is first filled into the bottle body, and then the heat-resistant pull-out prevention bottle cap is sealed on the bottleneck of the bottle body. Existing heat-resistant pull-out prevention bottle caps generally include a fixing component fixed on the bottleneck, a rotatable moving component, and an anti-counterfeiting structure arranged between the fixing component and the moving component. When in use, the anti-counterfeiting structure is damaged and cannot be repaired, so as to achieve the purpose of anti-counterfeiting by destroying the bottle cap. However, since the fixing component is generally fixed to the bottleneck through a buckle and an anti-rotation rib, and both the buckle and the anti-rotation rib are plastic parts, when the fixing component is heated with a hair dryer or hot water, the buckle and the anti-rotation rib are likely to fail, and the fixing component can be easily removed. In this way, illegal elements can recycle the bottles and heat-resistant pull-out prevention bottle caps to achieve the purpose of counterfeiting. Therefore, the anti-counterfeiting effect is not ideal. Summary of the Invention

[0003] Based on this, in view of the above technical problems, it is necessary to provide a heat-resistant pull-out prevention bottle cap that cannot be pulled out without damage by heating.

[0004] To solve the above technical problems, a heat-resistant pull-out prevention bottle cap provided by the present invention includes:

[0005] A fixing component, which includes an inner main body, an inner plug, and an outer main body. The inner main body includes a wine outlet nozzle section and a mounting section. The inner plug is located inside the inner main body. The inner plug includes an inner plug main body and a flanging portion extending radially outward along the outer wall of the inner plug main body. The outer main body is sleeved on the mounting section.

[0006] The fixing component further includes a fixing sleeve. The fixing sleeve is sleeved inside the mounting section and forms a slot for inserting the bottleneck between the fixing sleeve and the inner plug main body. A first anti-rotation convex portion or a first anti-rotation concave portion that cooperates with a first anti-rotation concave portion or a first anti-rotation convex portion on the bottleneck is provided on the upper inner wall of the fixing sleeve. A plurality of expandable and contractible claws are arranged in a circumferential direction at the lower part of the fixing sleeve. When the inner main body slides downward relative to the fixing sleeve, the lower end of the inner main body slides along the outer side surface of the claws, driving the claws to contract inward.

[0007] The anti-heating and unplugging bottle cap of the present invention has an expansion structure design for the fixing sleeve. The expandable claws on the fixing sleeve are combined with the first convex platform on the bottleneck to form an inverted buckle inside the bottle cap, so that the fixing sleeve and the inner main body are firmly connected to the bottleneck as a whole. Even when heated to become soft, the bottle cap cannot be separated from the bottleneck. Such a design ensures that the bottle cap can only be pulled out by damaging the bottle cap, making the bottle cap a one-time use and achieving the anti-counterfeiting purpose. Since the bottle cap cannot be recycled and reused, the anti-counterfeiting effect is remarkable.

[0008] In one embodiment, the fixing sleeve and the inner plug are of a split structure. The fixing sleeve is made of hard plastic material. A first anti-rotation structure for preventing relative rotational movement between the two and a first axial limiting structure for preventing relative axial movement between the two are provided between the fixing sleeve and the installation section.

[0009] In one embodiment, the first anti-rotation structure includes a second anti-rotation convex portion or a second anti-rotation concave portion provided on the outer wall of the fixing sleeve, and a third anti-rotation concave portion or a third anti-rotation convex portion provided on the inner wall of the installation section and cooperating with the second anti-rotation convex portion or the second anti-rotation concave portion.

[0010] In one embodiment, the inner diameter and the outer diameter of the upper part of the fixing sleeve gradually decrease from bottom to top. The second anti-rotation convex portion or the second anti-rotation concave portion is provided on the outer wall of the upper part of the fixing sleeve, and the height of the second anti-rotation convex portion or the second anti-rotation concave portion in the radial direction gradually increases along the direction from bottom to top.

[0011] In one embodiment, a plurality of limiting grooves are provided on the inner wall of the installation section at intervals in the circumferential direction; after the inner main body slides downward relative to the fixing sleeve in place, the outer edge of the lower end of at least one of the claws is caught in at least one of the limiting grooves to form the first axial limiting structure.

[0012] In one embodiment, in the circumferential direction, the width of the limiting groove is greater than the width of the claw.

[0013] In one embodiment, a sealing portion cooperating with the upper end opening of the fixing sleeve is provided at the lower end of the flanging portion; after the inner main body slides downward relative to the fixing sleeve in place, the sealing portion is inserted into the upper end opening of the fixing sleeve.

[0014] In one embodiment, a second anti-rotation structure for preventing relative rotational movement between the two and a second axial limiting structure for preventing relative axial movement between the two are provided between the outer main body and the installation section, and an anti-pulling buckle is provided on the inner wall of the outer main body.

[0015] In one embodiment, the outer body includes an outer body main body and an anti-pulling member. The anti-pulling member is made of hard plastic material. The anti-pulling member includes an annular main body portion. The main body portion is sleeved inside the lower end of the outer body main body, and the anti-pulling buckle extends obliquely upward and inward from the lower end of the main body portion.

[0016] In one embodiment, the anti-pulling member further includes at least two positioning portions arranged at intervals in the circumferential direction on the inner wall of the main body portion.

[0017] In one embodiment, the anti-heating pull-out bottle cap further includes an upper cover assembly. The upper cover assembly includes an outer cover and an inner cover. The inner cover includes a cylinder having a lower end opening and an upper end opening and a top connected to the upper end opening of the cylinder. The cylinder is made of hard plastic material, and the top is made of soft plastic material.

[0018] The beneficial effects of the additional technical features of the present invention will be described in the specific implementation part of this specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a cross-sectional view of the anti-heating pull-out bottle cap in one embodiment of the present invention;

[0020] Figure 2 is Figure 1 a partial enlarged view of A in

[0021] Figure 3 is Figure 1 a bottom view of the inner body of the anti-heating pull-out bottle cap shown in

[0022] Figure 4 is along Figure 3 a cross-sectional view taken along line A-A in

[0023] Figure 5 is along Figure 3 a cross-sectional view taken along line B-B in

[0024] Figure 6 is Figure 1 a cross-sectional view of the inner plug of the anti-heating pull-out bottle cap shown in

[0025] Figure 7 is Figure 1 a top view of the fixing sleeve of the anti-heating pull-out bottle cap shown in

[0026] Figure 8 is along Figure 7 a cross-sectional view taken along line A-A in

[0027] Figure 9 is Figure 1 a cross-sectional view of the outer body main body of the anti-heating pull-out bottle cap shown in

[0028] Figure 10 is Figure 1 a cross-sectional view of the anti-pulling member for preventing the heated removal of the bottle cap as shown in

[0029] Figure 11 is Figure 1 a cross-sectional view of the outer cap of the anti-heated removal bottle cap as shown in

[0030] Figure 12 is Figure 1 a cross-sectional view of the barrel of the anti-heated removal bottle cap as shown in

[0031] Figure 13 is Figure 1 a cross-sectional view of the top of the anti-heated removal bottle cap as shown in

[0032] Figure 14 is the front view of the bottleneck;

[0033] Figure 15 is Figure 14 the enlarged partial view at B in

[0034] Figure 16 is Figure 1 the assembly schematic diagram of the anti-heated removal bottle cap and the bottleneck as shown in

[0035] Explanation of reference numerals:

[0036] 1. Inner main body; 11. Installation section; 111. Third anti-rotation convex part; 112. Limit groove; 12. Liquor outlet section; 121. External thread; 13. Step part; 14. Liquor blocking part; 15. Connecting rib; 16. Liquor outlet channel; 17. First rib; 2. Inner plug; 21. Inner plug main body; 211. Upper inner plug section; 212. Lower inner plug section; 213. Liquor outlet hole; 22. Flanging part; 221. Sealing part; 3. Fixed sleeve; 31. Claw; 311. Inner side surface; 312. Outer side surface; 313. End face; 34. Convex point; 32. Groove; 33. First anti-rotation convex part; 36. Second anti-rotation concave part; 37. Slot; 4. Outer main body; 41. Outer main body body; 411. First buckle; 412. Installation groove; 413. Second rib; 414. Flange; 42. Anti-pulling member; 421. Main body part; 422. Anti-pulling buckle; 423. Positioning part; 5. Inner cap; 51. Internal thread; 52. Card slot; 53. Barrel; 54. Top; 55. Sealing ring; 6. Outer cap; 61. Card convex; 7. Bottleneck; 71. First boss; 72. Second boss; 74. First anti-rotation concave part; 76. Bottle mouth; 8. Sealing bead; 91. First anti-counterfeiting ring; 92. Second anti-counterfeiting ring. Specific embodiments

[0037] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a clear and complete description of the specific embodiments of the present invention with reference to the accompanying drawings. Obviously, the specific details described below are only a part of the embodiments of the present invention, and the present invention can also be implemented in many other embodiments different from those described herein. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0038] In this document, when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The front, back, up, down, and other orientation terms involved are defined based on the positions of the components in the drawings and the positions of the components relative to each other, only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the orientation terms should not limit the scope of protection requested by this application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention in this document are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0040] As Figure 1 shown, the anti-heating pull-out bottle cap as an example mainly consists of a fixing component for fixing on the bottleneck 7, an upper cover component covering the fixing component, and an anti-counterfeiting structure provided between the fixing component and the upper cover component. Among them, the fixing component includes an inner main body 1, a fixing sleeve 3, an inner plug 2, a sealing bead 8, and an outer main body 4.

[0041] Combined Figure 1 with 3 Figs. 18-5, the inner main body 1 is generally in an approximately cylindrical shape, which includes a wine outlet nozzle section 12 and an installation section 11 connected from top to bottom. An external thread 121 for connecting with the upper cover component is provided on the outer peripheral surface of the wine outlet nozzle section 12. A wine blocking portion 14 is provided at the center of the wine outlet nozzle section 12. There is a gap between the wine blocking portion 14 and the inner wall of the wine outlet nozzle section 12. The wine blocking portion 14 and the wine outlet nozzle section 12 are connected by a plurality of connecting ribs 15. A plurality of wine outlet channels 16 are formed between the wine blocking portion 14, the wine outlet nozzle section 12, and the plurality of connecting ribs 15. The installation section 11 is used to cooperate with the fixing sleeve 3 to fixedly install the fixing component on the bottleneck 7 in a non-detachable manner.

[0042] As an example, the inner diameter of the installation section 11 is larger than the inner diameter of the wine outlet nozzle section 12, and a stepped portion 13 is provided between the installation section 11 and the wine outlet nozzle section 12.

[0043] CombinedFigure 1 , 6 As shown in 6 , the inner plug 2 includes an inner plug body 21 and a flanging portion 22. The inner plug body 21 is cylindrical, and it includes an upper inner plug section 211 and a lower inner plug section 212 connected from top to bottom. The upper inner plug section 211 is inserted into the wine outlet nozzle section 12 and is in sealed cooperation with the inner wall of the wine outlet nozzle section 12. The lower inner plug section 212 can be inserted into the bottleneck 7 and is in sealed cooperation with the inner wall of the bottleneck 7. A wine outlet hole 213 for the wine liquid to flow through is provided at the bottom of the lower inner plug section 212. In order to facilitate the insertion into the bottleneck 7, the lower end of the lower inner plug section 212 is conical. In this embodiment, the inner diameter of the upper inner plug section 211 is larger than the inner diameter of the lower inner plug section 212, and a step is formed therebetween. The flanging portion 22 extends radially outward from the outer wall of the inner plug body 21, and the flanging portion 22 is in sealed cooperation with the upper end opening of the fixing sleeve 3. The sealing bead 8 is installed inside the inner plug 2.

[0044] As Figure 1 , 2 As shown in Figure 1 , 2 , 7 and 8, the fixing sleeve 3 is a cylindrical structure. The fixing sleeve 3 is sleeved inside the mounting section 11, and a slot 37 for the bottleneck 7 to be inserted is provided between the inner wall of the fixing sleeve 3 and the outer wall of the lower inner plug section 212. A first anti-rotation convex portion 33 (or first anti-rotation concave portion) for cooperating with the first anti-rotation concave portion 74 (or first anti-rotation convex portion) on the bottleneck 7 is provided on the upper inner wall of the fixing sleeve 3. A plurality of expandable and contractible claws 31 arranged along the circumferential direction are provided at the lower part of the fixing sleeve 3. Before sealing and pressing, the claws 31 are in an open state, and the bottleneck 7 can be inserted into the slot 37 between the inner plug body 21 and the fixing sleeve 3; during sealing and pressing, the inner main body 1 moves downward relative to the fixing sleeve 3, and the lower end of the inner main body 1 slides along the outer side surface 312 outside the claws 31, driving the claws 31 to contract and engage with the first boss 71. With this structure of the fixing sleeve 3, relative rotational movement between the fixing sleeve 3 and the bottleneck 7 is prevented by the cooperation of the first anti-rotation concave portion 74 and the first anti-rotation convex portion 33, and relative axial movement between the fixing sleeve 3 and the bottleneck 7 is prevented by the cooperation of the claws 31 and the first boss 71. This design enhances the anti-pulling function while improving the installation stability of the bottle cap.

[0045] As an example, the fixing sleeve 3 and the inner plug 2 are of a split structure. The fixing sleeve 3 is made of a rigid plastic material. A anti-rotation structure for preventing relative rotational movement between the fixing sleeve 3 and the mounting section 11 and an axial limit structure for preventing relative axial movement between the two are provided between the fixing sleeve 3 and the mounting section 11. Since the fixing sleeve 3 is made of a rigid plastic material (such as ABS plastic), when the bottle cap is heated with a hair dryer or hot water, the fixing sleeve 3 is not easily deformed, so that the fixing sleeve 3 cannot be pulled out from the bottleneck 7 by heating means, achieving that the bottle cap can only be pulled out by destroying the bottle cap, making the bottle cap disposable and achieving the purpose of destroying the cap, and the cap cannot be recycled, with good anti-counterfeiting effect. As an alternative, the fixing sleeve 3 and the inner plug 2 can be of an integral structure.

[0046] In one embodiment, a number of second anti-rotation recesses 36 (or second anti-rotation protrusions) are provided on the outer wall of the fixing sleeve 3, and a third anti-rotation protrusion 111 (or third anti-rotation recess) that cooperates with the second anti-rotation recess 36 (or second anti-rotation protrusion) is provided on the inner wall of the mounting section 11. Relative rotational movement between the fixing sleeve 3 and the inner body 1 is prevented by the second anti-rotation recess 36 and the third anti-rotation protrusion 111. This structure further enhances the stability and anti-pulling performance of the bottle cap.

[0047] In one embodiment, see Figure 4 、 5 , a number of limiting grooves 112 arranged at intervals in the circumferential direction are provided on the inner wall of the mounting section 11. After sealing and pressing, the outer edge of the lower end of at least one of the clamping claws 31 is caught in at least one of the limiting grooves 112 to prevent relative axial movement between the fixing sleeve 3 and the inner body 1. With this design, the clamping claw 31 simultaneously functions as an axial limit, which is beneficial for simplifying the structure. As an example, 4 limiting grooves 112 arranged at intervals in the circumferential direction are provided on the inner wall of the mounting section 11. The limiting grooves 112 are strip-shaped extending in the circumferential direction, and the length of the limiting grooves 112 in the circumferential direction is greater than the length of the clamping claw 31. In this way, when assembling the fixing sleeve 3, there is no directionality, which is convenient for assembly. This design simplifies the installation process and improves production efficiency.

[0048] In one embodiment, a sealing portion 221 that cooperates with the upper end opening of the fixing sleeve 3 is provided at the lower end of the flanging portion 22. After sealing and pressing, the sealing portion 221 is inserted into the upper end opening of the fixing sleeve 3. This design ensures that the bottle cap has good sealing performance for the wine in the bottle in the closed state and maintains the freshness of the wine.

[0049] In one embodiment, a number of slots 32 that are arranged at intervals in the circumferential direction and axially penetrate to the lower end surface of the fixing sleeve 3 are provided in the lower part of the fixing sleeve 3 to form the clamping claws 31. As an example, the longitudinal section of the clamping claw 31 is approximately a right triangle, which has an inner side surface 311, an outer side surface 312 and an end surface 313. The outer side surface 312 is a conical surface, the inner side surface 311 is parallel to the axial direction of the fixing sleeve 3, and the end surface 313 is perpendicular to the axial direction of the fixing sleeve 3. This structure of the clamping claw 31 improves the anti-pulling performance and makes the bottle cap safer and more reliable.

[0050] In one embodiment, see Figure 8The inner and outer diameters of the upper portion of the fixing sleeve 3 gradually decrease from bottom to top. The radial height of the first anti-rotation protrusion 33 gradually decreases from bottom to top, while the radial height of the second anti-rotation recess 36 gradually increases from bottom to top. This structure of the upper portion of the fixing sleeve 3 not only adapts to the structure of the upper portion of the bottle neck, but also leaves space for the third anti-rotation protrusion 111 on the inner body 1.

[0051] In one embodiment, a protrusion 34 is provided on the inner side surface 311 of the claw 31 to increase the coupling force between the claw 31 and the first boss 71. This design makes the coupling between the claw 31 and the first boss 71 more secure and further improves the anti-pullout performance.

[0052] Combine Figure 1 , 9 As shown in Figures 10 and 11, the outer body 4 is cylindrical and fits over the mounting section 11 of the inner body 1. A rotation stop structure, preventing relative rotation between the outer body 4 and the mounting section 11, and an axial limit structure, preventing relative axial movement between the outer body 4 and the mounting section 11, are provided between the outer body 4 and the mounting section 11. While the outer body 4 serves a decorative purpose, it also holds the mounting section 11 of the inner body 1 in place, preventing deformation during heating that could cause the claws 31 to open and render the securing structure ineffective.

[0053] In one embodiment, the inner wall of the outer body 4 is provided with a first buckle 411, which cooperates with the lower end surface of the inner body 1 to prevent the outer body 4 from moving axially upward relative to the inner body 1. This design makes the combination of the outer body 4 and the inner body 1 more stable and further improves the anti-pullout performance.

[0054] In one embodiment, the inner wall of the outer body 4 is provided with an anti-pullout buckle 422, which cooperates with the second boss 72 on the outer peripheral surface of the bottleneck 7 to prevent the outer body 4 from moving relative to the bottleneck 7, further increasing the bonding force between the fixing assembly and the bottleneck 7.

[0055] In one embodiment, the outer body 4 includes an outer body 41 and an anti-extraction member 42 provided on the inner wall of the lower end of the outer body 41. The anti-extraction member 42 is provided with a plurality of anti-extraction buckles 422 arranged along the circumferential direction. The anti-extraction member 42 is made of hard plastic. This design achieves the following technical effects:

[0056] 1. Improve the safety of the bottle cap: by the anti-pulling buckle 422 of the inner and outer bodies 4 and the second boss 72 cooperate with each other, the binding force between the bottle cap and the bottleneck 7 is improved, and the anti-pulling performance is further improved.

[0057] 2. Superior anti-counterfeiting performance: Adopting a unique anti-pulling design, when disassembling the bottle cap, the original structure needs to be damaged, making the bottle cap unable to be recycled, thus achieving the purpose of anti-counterfeiting. The anti-pulling part 42 is made of hard plastic. When heating the bottle cap with a hair dryer or hot water, the anti-pulling part 42 is not easily deformed. Therefore, it is impossible to pull out the outer body 4 from the bottleneck 7 by heating means, realizing that only by destroying the bottle cap can the bottle cap be pulled out, making the bottle cap disposable and unable to be recycled, with good anti-counterfeiting effect.

[0058] 3. Easy to assemble: The split structure of the outer body 4 simplifies the assembly process of the bottle cap. First, install the fixing sleeve 3 into the inner body 1, and then install the anti-pulling part 42, improving production efficiency.

[0059] 4. Stable structure: There is an anti-rotation structure between the inner and outer bodies 4 to ensure that the bottle cap will not become loose due to rotation during use.

[0060] In one embodiment, the anti-pulling part 42 includes an annular main body part 421, and the anti-pulling buckle 422 extends obliquely upward and inward from the lower end of the main body part 421. The anti-pulling buckle 422 forms an inverted buckle structure, and it is not easy for the anti-pulling buckle 422 to disengage from the second boss 72.

[0061] In one embodiment, the anti-pulling part 42 further includes at least two positioning parts 423 arranged at intervals along the circumferential direction on the inner wall of the main body part 421, and the at least two positioning parts 423 cooperate with the outer peripheral surface of the step on the bottleneck 7. When assembling the bottle cap, the cooperation between the positioning part 423 and the outer peripheral surface of the second boss 72 ensures concentricity and prevents the bottle cap from being installed unevenly.

[0062] In one embodiment, an installation groove 412 is provided on the inner wall at the lower end of the outer body 4, and the main body part 421 is stuck in the installation groove 412.

[0063] In one embodiment, the inner diameter of the main body part 421 is smaller than the outer diameter of the lower end of the fixing sleeve 3. In this way, the main body part 421 can play a role in limiting the fixing sleeve 3 and preventing the fixing sleeve 3 from falling off.

[0064] Preferably, there is an anti-rotation structure between the outer body 4 and the inner body 1. As an example, the anti-rotation structure includes a plurality of second convex strips 413 provided on the inner wall of the outer body 4 and a plurality of first convex strips 17 provided on the outer wall of the inner body 1, and the second convex strips 413 are stuck between two adjacent first convex strips 17. An inward-extending convex edge 414 is provided on the inner wall of the outer body 4 above the plurality of second convex strips 413, and the convex edge 414 cooperates with the second convex strips 413 to prevent the outer body 4 from moving axially downward relative to the inner body 1.

[0065] Such as Figure 1 、11 As shown in FIG. -13, the upper cover assembly includes an outer cover 6 and an inner cover 5 fixedly embedded in the outer cover 6. The inner wall of the inner cover 5 is provided with an internal thread 51 that mates with the external thread 121 on the inner main body 1. The outer wall of the inner cover 5 is provided with a card slot 52, and the inner wall of the outer cover 6 is provided with a card projection 61 that mates with the card slot 52. The card projection 61 is snapped into the card slot 52 to fixedly connect the inner cover 5 and the outer cover 6. As an alternative, the positions of the card projection 61 and the card slot 52 can be swapped, that is, the card projection 61 is provided on the inner cover 5 and the card slot 52 is provided on the outer cover 6.

[0066] In one embodiment, the inner cover 5 includes a cylinder 53 having a lower end opening and an upper end opening, and a top 54 connected to the upper end opening of the cylinder 53. The cylinder 53 is made of rigid plastic, and the top 54 is made of soft plastic. With this design, the part of the inner cover 5 provided with the card slot 52 is made of rigid plastic, and the part of the inner cover 5 that mates with the end face of the liquid outlet part is made of soft plastic. In this way, while meeting the sealing requirements, the connection strength between the inner cover 5 and the outer cover 6 is increased. When the upper cover assembly is heated with a hair dryer or hot water, the part of the inner cover 5 provided with the card slot 52 is not easily deformed, so that the outer cover 6 cannot be pulled out from the inner cover 5 by heating means. Only when the outer cover 6 is deformed by heating can the card projection 61 and the card slot 52 be separated, achieving the purpose of making the bottle cap disposable by destroying the cap, and the cap cannot be recycled, with good anti-counterfeiting effect.

[0067] As an example, the upper end face of the cylinder 53 is closely attached to the lower surface of the top 54, which can prevent liquid leakage between the upper end face of the cylinder 53 and the lower surface of the top 54. Since the cylinder 53 and the outer cover 6 are connected by the card projection 61 and the card slot 52, when the card projection 61 on the outer cover 6 is snapped into the card slot 52, the top 54 of the outer cover 6 is used to make the lower surface of the top 54 closely adhere to the upper end face of the cylinder 53. As an alternative, the upper end of the cylinder 53 and the top 54 are integrally formed by a two-shot injection molding process. In this way, the cylinder 53 and the top 54 are one part, which is convenient for assembly.

[0068] In one embodiment, the cylinder 53 is made of ABS plastic, and the top 54 is made of PE (polyethylene) plastic.

[0069] In one embodiment, the lower surface of the top 54 has a sealing ring 55 that extends downward. The sealing ring 55 is used to closely contact the liquid outlet part when the bottle cap is fully tightened. The sealing ring 55 is made of soft plastic. The sealing ring 55 provides good sealing performance to prevent liquid leakage.

[0070] The anti-counterfeiting structure in this embodiment includes a first anti-counterfeiting ring 91 provided on the outer cover 6 and a second anti-counterfeiting ring 92 provided on the outer main body 4. The first anti-counterfeiting ring 91 is provided with first anti-counterfeiting teeth (not shown in the figure) extending downward, and the second anti-counterfeiting ring 92 is provided with second anti-counterfeiting teeth (not shown in the figure) extending upward. When in use, the outer cover 6 is rotated to drive the first anti-counterfeiting teeth to rotate, and the first anti-counterfeiting teeth and / or the second anti-counterfeiting teeth are broken. After the first anti-counterfeiting teeth and / or the second anti-counterfeiting teeth are twisted off, they cannot be repaired, thus achieving the purpose of anti-counterfeiting.

[0071] In another embodiment of the present invention, a bottle body used in conjunction with the above-mentioned anti-heating and pulling-out bottle cap is provided, as Figure 14 shown. The bottle body includes a bottle body (not shown in the figure) and a bottleneck 7 provided on the bottle body. The bottleneck 7 has a bottle mouth 76. On the outer wall of the bottleneck 7, a first boss 71 and a second boss 72 are arranged at intervals from top to bottom. On the outer wall of the bottleneck 7 above the first boss 71, a plurality of first anti-rotation concave portions 74 are arranged at intervals in the circumferential direction. Preferably, the width of the first anti-rotation concave portion 74 is wider at the top and narrower at the bottom to facilitate the smooth insertion of the first anti-rotation convex portion 33 into the first anti-rotation concave portion 74 during sealing and can be automatically aligned.

[0072] Figure 16 For the assembly drawing of the anti-heating and pulling-out bottle cap and the bottleneck 7, see Figure 1 、 16 , before sealing, the lower end of the installation section 11 of the inner main body 1 is located above the claw 31, and the claw 31 is in a freely open state. At this time, the bottleneck 7 can be inserted into the slot 37 between the inner plug main body 21 and the fixed sleeve 3, and the first anti-rotation convex portion 33 on the fixed sleeve 3 is inserted into the first anti-rotation concave portion 74 on the outer wall of the bottleneck 7. During sealing, a downward pressure is applied to the anti-heating and pulling-out bottle cap, the inner main body 1 moves downward relative to the fixed sleeve 3, and the lower end of the inner main body 1 slides along the outer side surface 312 of the claw 31, driving the claw 31 to contract to clamp the first boss 71 of the bottleneck 7. At the same time, the anti-pulling buckle 422 is stuck on the second boss 72, thereby fixing the anti-heating and pulling-out bottle cap on the bottleneck 7.

[0073] The anti-heating pull-out bottle cap of the present invention has a fixing component. The retractable claws 31 on the fixing sleeve 3 and the first boss 71 on the bottleneck 7 form an inverted buckle inside the bottle through an expansion structure design, so that the inner plug 2 and the inner main body 1 are firmly integrated with the bottle, and they cannot be separated even when heated and softened. At the same time, the anti-pull buckle 422 on the outer main body 4 is engaged with the second boss 72 on the bottleneck 7, further increasing the binding force between the fixing component and the bottleneck 7. Moreover, only when the outer main body 4 is deformed by heating can the anti-pull buckle 422 and the second boss 72 be separated, realizing that the bottle cap can only be pulled out by destroying the bottle cap, making the bottle cap disposable and achieving the purpose of destroying the cap. The cap cannot be recycled, and the anti-counterfeiting effect is good. This design meets the market's requirements for the safety, anti-counterfeiting performance, and use convenience of the bottle cap, and has high practical value and broad application prospects.

[0074] The assembly method of the anti-heating pull-out bottle cap in this embodiment is as follows:

[0075] Step 1: First, fix the inner main body 1 on the first tooling, and screw the inner cap 5 tightly onto the inner main body 1. Specifically, the installation section 11 of the inner main body 1 is sleeved on the first support part of the first tooling, and the first rib 17 on the inner main body 1 is inserted into the anti-rotation groove on the first support part to prevent the inner main body 1 from rotating. Then, screw the inner cap 5 tightly with the wine outlet nozzle section 12 of the inner main body 1 to form the first intermediate assembly.

[0076] Step 2: Sleeve the outer main body body 41 with the second anti-counterfeiting ring 92 assembled on the first intermediate assembly. Specifically, the outer main body body 41 is sleeved from top to bottom on the inner main body 1 of the first intermediate assembly until the first buckle 411 on the outer main body body 41 hooks on the lower end face of the inner main body 1 to form the second intermediate assembly.

[0077] Step 3: Install the outer cap 6 with the first anti-counterfeiting ring 91 assembled on the inner cap 5. Specifically, the outer cap 6 is sleeved from top to bottom on the inner cap 5 until the convex lug 61 on the outer cap 6 is snapped into the card slot 52 on the inner cap 5 to form the third intermediate assembly.

[0078] Step 4: Put the inner plug 2 with the glass beads installed into the second tooling, and press the inner plug 2 into the inner main body 1. Specifically, the second tooling includes a second column and a second support part connected to the upper end of the second column. The lower section 212 of the inner plug is inserted into the inner hole of the second support part. The third intermediate assembly is sleeved from top to bottom on the inner plug 2 until the lower end of the outer main body 4 contacts the limit step on the second tooling and then stops.

[0079] [[ID=ID=18]]Step 5: Install the anti-pull part 42 into the installation slot 412 of the outer main body body 41. Specifically, fix the anti-pull part 42 on the third tooling, and sleeve the third intermediate assembly from top to bottom on the anti-pull part 42. The anti-pull part 42 is snapped into the installation slot 412, thus completing the assembly of the anti-pull bottle cap.

[0080] The embodiments described above merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention.

Claims

1. A heat-resistant and anti-pull-out bottle cap, comprising: A fixing component, which includes an inner main body, an inner plug and an outer main body. The inner main body includes a wine outlet nozzle section and a mounting section. The inner plug is located inside the inner main body. The inner plug includes an inner plug main body and a flanging portion extending radially outward along the outer wall of the inner plug main body. The outer main body is sleeved on the mounting section. Characterized in that the fixing component further includes a fixing sleeve. The fixing sleeve is sleeved inside the mounting section and forms a slot for inserting the bottleneck between it and the inner plug main body. A first anti-rotation convex portion or a first anti-rotation concave portion that cooperates with a first anti-rotation concave portion or a first anti-rotation convex portion on the bottleneck is provided on the upper inner wall of the fixing sleeve. A plurality of expandable and contractible claws are arranged circumferentially at the lower part of the fixing sleeve. The claw has an inner side and an outer side. The outer side is a conical surface, and the inner side is parallel to the axial direction of the fixing sleeve. When the inner main body slides downward relative to the fixing sleeve, the lower end of the inner main body slides along the outer side of the claw, driving the claw to contract inward to form a reverse buckle inside the bottle cap.

2. The anti-heating pull-out bottle cap according to claim 1, wherein The fixing sleeve and the inner plug are of a split structure. The fixing sleeve is made of hard plastic material. A first anti-rotation structure for preventing relative rotational movement between the two and a first axial limiting structure for preventing relative axial movement between the two are provided between the fixing sleeve and the mounting section.

3. The anti-heating pull-out bottle cap according to claim 2, wherein The first anti-rotation structure includes a second anti-rotation convex portion or a second anti-rotation concave portion provided on the outer wall of the fixing sleeve, and a third anti-rotation concave portion or a third anti-rotation convex portion provided on the inner wall of the mounting section and cooperating with the second anti-rotation convex portion or the second anti-rotation concave portion.

4. The anti-heating and unscrewing bottle cap according to claim 3, wherein, The inner diameter and the outer diameter of the upper part of the fixing sleeve gradually decrease from bottom to top. The second anti-rotation convex portion or the second anti-rotation concave portion is provided on the outer wall of the upper part of the fixing sleeve, and the height of the second anti-rotation convex portion or the second anti-rotation concave portion in the radial direction gradually increases along the direction from bottom to top.

5. The anti-heating pull-out bottle cap according to claim 2, characterized in that, A number of limiting grooves are arranged at intervals circumferentially on the inner wall of the mounting section. After the inner main body slides downward relative to the fixing sleeve in place, the lower outer edge of at least one claw is caught in at least one of the limiting grooves to form the first axial limiting structure.

6. The anti-heating and pulling-out bottle cap according to claim 5, wherein, In the circumferential direction, the width of the limiting groove is greater than the width of the claw.

7. The anti-heating pull-out bottle cap according to claim 2, wherein A sealing portion that cooperates with the upper end opening of the fixing sleeve is provided at the lower end of the flanging portion. After the inner main body slides downward relative to the fixing sleeve in place, the sealing portion is inserted into the upper end opening of the fixing sleeve.

8. The anti-heating and pulling-out bottle cap according to claim 1, characterized in that, An anti-pull-out buckle is provided on the inner wall of the outer main body.

9. The anti-heating and pull-out bottle cap according to claim 8, wherein, The outer main body includes an outer main body body and an anti-pull-out member. The anti-pull-out member is made of hard plastic material. The anti-pull-out member includes an annular main body portion. The main body portion is sleeved inside the lower end of the outer main body body. The anti-pull-out buckle extends obliquely upward inward from the lower end of the main body portion.

10. The anti-heating and pull-out bottle cap according to claim 9, characterized in that, The anti-pull-out member further includes at least two positioning portions arranged at intervals circumferentially on the inner wall of the main body portion.

11. The anti-heating and pulling-out bottle cap according to claim 1, characterized in that, The anti-heating pull-out bottle cap further includes an upper cover assembly, and the upper cover assembly includes an outer cover and an inner cover. The inner cover includes a cylinder body having a lower end opening and an upper end opening, and a top portion connected to the upper end opening of the cylinder body. The cylinder body is made of hard plastic, and the top portion is made of soft plastic.

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