Heat removal prevention cap and its inner body and bottle neck fixing structure

Abstract

This application discloses a cap for preventing thermal removal, and a fixing structure for the inner body and the bottleneck. The fixing structure includes a bottle body and an inner body, the outer wall of the bottleneck is provided with a first boss extending in the circumferential direction, and first rotation stop recesses arranged at intervals in the circumferential direction above the first boss, and further includes a fixing sleeve, the fixing sleeve is inserted into the mounting segment and forms a slot between the bottleneck and the bottleneck, the upper inner wall of the fixing sleeve is provided with a first rotation stop protrusion, and the lower part of the fixing sleeve is provided with a plurality of openable and closable locking claws arranged in the circumferential direction. The fixing structure for the inner body and the bolt mouth of this application uses the expandable locking claws of the fixing sleeve and the bottleneck to form an undercut inside the bolt through the design of an expansion structure, and firmly integrates the bottleneck and the inner body with the bolt, so that even if the cap is heated to soften, it cannot be removed from the bottleneck without damage, making the cap disposable and achieving the purpose of destroying the cap.

Description

[Technical Field]

[0001] This application claims priority to a Chinese patent application filed on April 28, 2023, bearing application number 202321034009.5 and entitled "Fixing structure between inner body and bottle neck of thermal removal prevention cap," the entire text of which is incorporated herein by reference. [Background technology]

[0002] A typical alcohol bottle consists of a bottle body and a heat-resistant cap. After the alcohol is filled into the bottle body, the heat-resistant cap is typically sealed onto the bottle neck. Existing heat-resistant caps typically include a fixing unit secured to the bottle neck, a loosenable movable unit, and an anti-counterfeiting mechanism disposed between the fixing unit and the movable unit. Removing the cap and using it destroys the anti-counterfeiting mechanism, making it irreparable. This destroys the cap to achieve its anti-counterfeiting purpose. However, the fixing unit is typically secured to the bottle neck via a buckle or a locking rib. Because the buckle and the locking rib are both made of plastic, heating the fixing unit with a hair dryer or hot water can disable the buckle and the locking rib, allowing the fixing unit to be easily removed. Therefore, fraudsters can achieve their counterfeiting goals by recycling the bottle and the heat-resistant cap. This results in less-than-ideal anti-counterfeiting effect. Summary of the Invention

[0003] According to each embodiment of the present application, there is provided a fixing structure between an inner body and a bottle neck of a thermal removal prevention cap that cannot be removed without damage due to heating, and the fixing structure comprises: a bottle body including a bottle neck; A fixing structure for an inner body of a heat removal prevention cap and a bottle neck, the inner body including an alcohol outlet segment and an attachment segment, an outer wall of the bottleneck is provided with a first boss extending in a circumferential direction, and first rotation stop recesses or first rotation stop protrusions arranged above the first boss and spaced apart in the circumferential direction; The bottle neck further includes a fixing sleeve, which is inserted into the mounting segment and forms a slot between the fixing sleeve and the plug body, and the fixing sleeve has an upper inner wall provided with a first anti-rotation protrusion or a first anti-rotation recess that fits into the first anti-rotation recess or the first anti-rotation protrusion, and the fixing sleeve has a lower part provided with a plurality of openable and closable locking claws arranged in the circumferential direction, the bottle neck is inserted into the slot, the first anti-rotation protrusion is engaged into the first anti-rotation recess, and the locking claws are contracted by the mounting segment to engage with the first boss.

[0004] In the fixing structure between the inner body and the bottle neck of the thermal removal prevention cap of the present invention, the fixing sleeve is designed with an expansion structure, and the openable locking claw of the fixing sleeve is coupled with the first boss of the bottle neck, forming an undercut inside the cap, which firmly connects the fixing sleeve and the inner body to the bottle neck and forms an integral unit. Even if heated until softened, the cap cannot be separated from the bottle neck. This design ensures that the cap can only be removed by destroying it, ensuring its disposability and achieving the purpose of anti-counterfeiting. Since the cap cannot be recycled, the anti-counterfeiting effect is significant.

[0005] In one embodiment, the fixing sleeve and the inner plug are separate structures, the fixing sleeve is made of a hard plastic material, and a rotation prevention structure that prevents relative rotation between the fixing sleeve and the mounting segment and an axial limiting structure that prevents relative movement in both axial directions are provided between the fixing sleeve and the mounting segment.

[0006] In one embodiment, the anti-rotation structure includes a second anti-rotation protrusion or a second anti-rotation recess provided on the outer wall of the fixing sleeve, and a third anti-rotation recess or a third anti-rotation protrusion provided on the inner wall of the mounting segment, which fits into the second anti-rotation protrusion or the second anti-rotation recess.

[0007] In one embodiment, the inner diameter and outer diameter of the upper part of the fixed sleeve gradually decrease from bottom to top, the second anti-rotation protrusion or second anti-rotation recess is provided on the outer wall of the upper part of the fixed sleeve, and the radial height of the second anti-rotation protrusion or second anti-rotation recess gradually increases from bottom to top.

[0008] In one embodiment, the inner wall of the mounting segment is provided with a plurality of circumferentially spaced restricting grooves, and when the inner body slides downward to a predetermined position relative to the fixing sleeve, the lower outer edge of at least one of the locking claws engages into at least one of the restricting grooves to form the axial restricting structure.

[0009] In one embodiment, the width of the limiting groove is greater than the width of the locking pawl in the circumferential direction.

[0010] In one embodiment, the pawl has a bump on its inner surface.

[0011] In one embodiment, the fixing sleeve is made of a hard plastic material.

[0012] In one embodiment, the outer surfaces of the plurality of pawls lie on a conical surface.

[0013] In one embodiment, the lower part of the fixing sleeve has a plurality of notches spaced apart in the circumferential direction and extending axially to the lower end surface of the fixing sleeve, forming the locking pawls.

[0014] The thermal removal prevention cap according to the present invention comprises: an inner body having an axially extending cylindrical structure including an upper liquor outlet segment and a lower mounting segment; an axially extending cylindrical inner plug provided inside the inner body, the upper end of which is inserted into the liquor outlet segment and sealingly fits into the inner wall of the liquor outlet segment, and the lower end of which is inserted into the bottle neck and sealingly fits into the inner wall of the bottle neck; an outer body having an axially extending cylindrical structure provided outside the mounting segment; a fixing sleeve made of a hard plastic material and positioned between the mounting segment and the inner plug, a slot into which the bottleneck is inserted is formed between the fixing sleeve and the inner plug, the fixing sleeve has an upper inner wall provided with a plurality of first recesses or first protrusions that fit into a plurality of first protrusions or first recesses of the bottleneck, and the fixing sleeve has a lower part provided with a plurality of circumferentially arranged openable and closable locking claws that can contract inward by the action of the lower end of the inner body and tightly engage with the first boss of the bottleneck.

[0015] In one embodiment, the fixing sleeve and the plug are separate structures.

[0016] In one embodiment, a first anti-rotation structure is provided between the fixing sleeve and the mounting segment to prevent relative rotation therebetween.

[0017] In one embodiment, the first anti-rotation structure includes a second protrusion or a second recess provided on the outer wall of the fixing sleeve and a third recess or a third protrusion provided on the inner wall of the mounting segment, and the third recess or the third protrusion and the second protrusion or the second recess are fitted together.

[0018] In one embodiment, the inner diameter and outer diameter of the upper part of the fixed sleeve gradually decrease from bottom to top, the second convex portion or the second concave portion is provided on the outer wall of the upper part of the fixed sleeve, and the radial height of the second convex portion or the second concave portion gradually increases from bottom to top.

[0019] In one embodiment, a first axial limiting structure is provided between the locking sleeve and the mounting segment to prevent relative movement in both axial directions.

[0020] In one embodiment, the inner wall of the mounting segment is provided with a plurality of circumferentially spaced limiting grooves, and a lower outer edge of at least one of the locking pawls is engaged into at least one of the limiting grooves to form the first axial limiting structure.

[0021] In one embodiment, the width of the limiting groove is greater than the width of the locking pawl in the circumferential direction.

[0022] In one embodiment, the plug includes a plug body skirt portion, the plug body being an axially extending cylindrical structure, the skirt portion extending radially outward from an outer wall of the plug body, and the skirt portion sealingly fitting into an opening at the upper end of the locking sleeve.

[0023] In one embodiment, a sealing portion is provided at the lower end of the skirt portion, the sealing portion being fitted into the upper end opening of the fixing sleeve, and the sealing portion is inserted into the upper end opening of the fixing sleeve.

[0024] In one embodiment, an anti-detachment buckle is provided on the inner wall of the outer body to fit into a second boss on the outer wall of the bottle neck, and the second boss is located below the first boss.

[0025] In one embodiment, the outer main body includes an outer main body body and an anti-slip member, the anti-slip member being made of a hard plastic material and including an annular main body portion and the anti-slip buckle, the main body portion being inserted into the lower end of the outer main body body, and the anti-slip buckle extending diagonally upward and inward from the lower end of the main body portion.

[0026] In one embodiment, the removal prevention member further includes at least two positioning portions, which are provided on an inner wall of the main body portion and spaced apart in the circumferential direction.

[0027] In one embodiment, an attachment groove is provided on the inner wall of the lower end of the outer body, and the body of the removal prevention member is fitted into the attachment groove.

[0028] In one embodiment, the cap further includes a cover unit, the cover unit including an outer cover and an inner cover, the inner cover including a cylindrical body having a lower end opening and an upper end opening, and a top portion connected to the upper end opening of the cylindrical body, the cylindrical body being made of a hard plastic material, and the top portion being made of a soft plastic material.

[0029] The details of one or more embodiments of the invention are set forth in the drawings and description which follow. Other features, objects, and advantages of the invention will become apparent from the description, drawings, and claims. [Brief explanation of the drawings]

[0030] [Figure 1] 1 is a cross-sectional view of a thermal removal prevention cap according to an embodiment of the present invention. [Figure 2] FIG. 2 is a partial enlarged view of part A in FIG. [Figure 3] 2 is a bottom view of the inner body of the thermal removal prevention cap shown in FIG. 1. FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Figure 5] FIG. 4 is a cross-sectional view taken along line BB in FIG. 3. [Figure 6]FIG. 2 is a cross-sectional view of an inner plug of the thermal removal prevention cap shown in FIG. [Figure 7] 2 is a top view of the fixing sleeve of the thermal removal prevention cap shown in FIG. 1. FIG. [Figure 8] FIG. 8 is a cross-sectional view taken along line AA in FIG. 7. [Figure 9] 2 is a cross-sectional view of an outer main body of the thermal removal prevention cap shown in FIG. 1. FIG. [Figure 10] 2 is a cross-sectional view of a removal prevention member of the thermal removal prevention cap shown in FIG. 1. FIG. [Figure 11] 2 is a cross-sectional view of the outer cover of the thermal removal prevention cap shown in FIG. 1. FIG. [Figure 12] FIG. 2 is a cross-sectional view of a cylindrical body of the thermal removal prevention cap shown in FIG. [Figure 13] FIG. 2 is a cross-sectional view of the top of the thermal removal prevention cap shown in FIG. [Figure 14] FIG. 1 is a front view of a bottleneck. [Figure 15] FIG. 15 is a partially enlarged view of part B in FIG. [Figure 16] 2 is a schematic diagram illustrating the assembly of the thermal removal prevention cap and the bottle neck shown in FIG. 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understandable, specific embodiments of the present invention will be clearly and completely described below with reference to the drawings. Obviously, the specific details described below are only a part of the embodiments of the present invention, and the present invention may be realized by many embodiments different from the embodiments described in the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any creative work are all within the protection scope of the present invention.

[0032] In this specification, when an element is described as being "fixed" to another element, it may be directly disposed on the other element, or there may be intervening elements. When an element is considered to be "connected" to another element, it may be directly connected to the other element, or there may be intervening elements. Such directional terms, such as front, back, top, bottom, etc., are defined by the positions of parts in the drawings and the positions between parts, and are merely used to clearly and conveniently express technical solutions. It should be understood that the use of these directional terms should not limit the scope of the claims protected by this application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. The terms used in the specification of the present invention are for describing specific embodiments only and are not intended to limit the present invention.

[0034] As shown in Figure 1, an example of a thermal removal prevention cap is mainly composed of a fixing unit fixed to a bottle neck 7, a cover unit covering the fixing unit, and an anti-counterfeiting structure provided between the fixing unit and the cover unit, of which the fixing unit includes an inner body 1, a fixing sleeve 3, a stopper 2, a sealing bead 8, and an outer body 4.

[0035] As shown in Figures 1 and 3 to 5, the inner body 1 is generally cylindrical overall and includes a liquor outlet segment 12 and an attachment segment 11 connected from top to bottom. The liquor outlet segment 12 has an external thread 121 on its outer surface for connecting to the cover unit. A liquor shielding portion 14 is provided in the center of the liquor outlet segment 12. A gap exists between the liquor shielding portion 14 and the inner wall of the liquor outlet segment 12. The liquor shielding portion 14 and the liquor outlet segment 12 are connected by a plurality of connecting ribs 15, and a plurality of liquor outlet channels 16 are formed between the liquor shielding portion 14, the liquor outlet segment 12, and the plurality of connecting ribs 15. The attachment segment 11 is fitted into the fixing sleeve 3 to irremovably fix the fixing unit to the bottleneck 7.

[0036] As an example, the inner diameter of the mounting segment 11 is larger than the inner diameter of the liquor outlet segment 12, and a step portion 13 is provided between the mounting segment 11 and the liquor outlet segment 12.

[0037] As shown in FIGS. 1 and 6 , the plug 2 includes a plug body 21 and a skirt portion 22. The plug body 21 is cylindrical and includes an upper plug section 211 and a lower plug section 212 connected from top to bottom. The upper plug section 211 is inserted into the liquor outlet segment 12 and seals against the inner wall of the liquor outlet segment 12. The lower plug section 212 is inserted into the bottleneck 7 and seals against the inner wall of the bottleneck 7. The bottom of the lower plug section 212 is provided with a liquor outlet hole 213 through which liquor flows. The lower end of the lower plug section 212 is conical to facilitate insertion into the bottleneck 7. In this embodiment, the inner diameter of the upper plug section 211 is larger than the inner diameter of the lower plug section 212, and a step is formed between the upper and lower plug sections. The skirt portion 22 extends radially outward from the outer wall of the plug body 21 and seals against the upper opening of the fixing sleeve 3. A sealing bead 8 is mounted within the stopper 2 .

[0038] As shown in Figures 1, 2, 7 and 8, the fixed sleeve 3 has a cylindrical structure, is inserted into the mounting segment 11, and has a slot 37 for inserting the bottleneck 7 between the inner wall of the fixed sleeve 3 and the outer wall of the lower plug stage 212. The upper inner wall of the fixed sleeve 3 has a first anti-rotation protrusion 33 (or first anti-rotation recess) that fits into the first anti-rotation recess 74 (or first anti-rotation protrusion) in the bottleneck 7. The lower part of the fixed sleeve 3 has a plurality of openable and closable locking claws 31 arranged circumferentially. Before the seal is pressed, the locking claw 31 is in an open state, allowing the bottleneck 7 to be inserted into the slot 37 between the inner plug body 21 and the fixed sleeve 3. When the seal is pressed, the inner body 1 moves downward relative to the fixed sleeve 3, and the lower end of the inner body 1 slides along the outer surface 312 of the locking claw 31, causing the locking claw 31 to contract and engage with the first boss 71. With this structure for the fixed sleeve 3, relative rotation between the fixed sleeve 3 and the bottleneck 7 is prevented by the first rotation prevention recess 74 and the first rotation prevention protrusion 33 engaging with each other, and relative axial movement between the fixed sleeve 3 and the bottleneck 7 is prevented by the locking claw 31 and the first boss 71 engaging with each other. This design enhances the prevention of removal and improves the attachment stability of the cap.

[0039] For example, the fixing sleeve 3 and the inner plug 2 are separate structures, the fixing sleeve 3 is made of a hard plastic material, and a rotation prevention structure that prevents relative rotation in both directions and an axial limiting structure that prevents relative movement in both directions are provided between the fixing sleeve 3 and the mounting segment 11. Because the fixing sleeve 3 is made of a hard plastic material (e.g., ABS plastic), it is difficult for the fixing sleeve 3 to deform when the cap is heated with a hair dryer or hot water. As a result, the fixing sleeve 3 cannot be removed from the bottle neck 7 by heating. Therefore, the only way to remove the cap is to destroy it, making the cap disposable and achieving the purpose of destroying the cap, but not recyclable, which is highly effective in preventing counterfeiting. Alternatively, the fixing sleeve 3 and the inner plug 2 are a single structure.

[0040] In one embodiment, a plurality of second anti-rotation recesses 36 (or second anti-rotation protrusions) are provided on the outer wall of the fixing sleeve 3, and third anti-rotation protrusions 111 (or third anti-rotation recesses) that fit into the second anti-rotation recesses 36 (or second anti-rotation protrusions) are provided on the inner wall of the mounting segment 11. Relative rotation between the fixing sleeve 3 and the inner body 1 is prevented by the second anti-rotation recesses 36 and the third anti-rotation protrusions 111. This structure further improves the stability and removal prevention performance of the cap.

[0041] In one embodiment, as shown in FIGS. 4 and 5 , the inner wall of the mounting segment 11 is provided with a plurality of limiting grooves 112 spaced apart from one another in the circumferential direction. After the seal is pressed, the lower outer edge of at least one of the locking claws 31 is engaged in at least one of the limiting grooves 112, thereby preventing relative axial movement between the fixing sleeve 3 and the inner body 1. In this design, the locking claws 31 also serve as an axial limiter, simplifying the structure. For example, the inner wall of the mounting segment 11 is provided with four limiting grooves 112 spaced apart from one another in the circumferential direction. Each limiting groove 112 is elongated and extends in the circumferential direction. The length of each limiting groove 112 is greater than the length of each locking claw 31 in the circumferential direction. This eliminates the need for any specific direction when assembling the fixing sleeve 3, making assembly easier. This design simplifies the installation process and improves production efficiency.

[0042] In one embodiment, the lower end of the skirt portion 22 is provided with a sealing portion 221 that fits into the upper opening of the fixed sleeve 3, and after sealing is pressed, the sealing portion 221 is inserted into the upper opening of the fixed sleeve 3. This design ensures good sealing of the alcohol in the bolt when the cap is closed, and keeps the alcohol fresh.

[0043] In one embodiment, the lower part of the fixing sleeve 3 is provided with a plurality of notches 32 that are spaced apart in the circumferential direction and that extend axially to the lower end surface of the fixing sleeve 3, thereby forming the locking claws 31. As an example, the locking claw 31 has a longitudinal cross section that is approximately a right triangle, and has an inner surface 311, an outer surface 312, and an end surface 313, and the outer surfaces 312 of the multiple locking claws 31 are on the same conical surface, the inner 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 locking claws 31 improves the prevention of removal, making the cap safer and more reliable.

[0044] 8, the inner and outer diameters of the upper part of the fixed sleeve 3 gradually decrease from bottom to top, the radial height of the first rotation stop projection 33 gradually decreases from bottom to top, and the radial height of the second rotation stop recess 36 gradually increases from bottom to top. By configuring the upper part of the fixed sleeve 3 in this way, it can be adapted to the structure of the upper part of the bottleneck while leaving a position for the third rotation stop projection 111 on the inner body 1.

[0045] In one embodiment, a bump 314 is provided on the inner surface 311 of the locking claw 31, thereby improving the coupling strength between the locking claw 31 and the first boss 71. This design makes the coupling between the locking claw 31 and the first boss 71 stronger, further improving the anti-pullout performance.

[0046] 1, 9, and 10, the outer body 4 is cylindrical and fitted onto the mounting segment 11 of the inner body 1, and a rotation prevention structure that prevents relative rotation between the outer body 4 and the mounting segment 11, and an axial restriction structure that prevents relative movement in both axial directions, are provided between the outer body 4 and the mounting segment 11. In addition to its decorative function, the outer body 4 also hugs the mounting segment 11 of the inner body 1, preventing the mounting segment 11 from deforming due to heat and deploying the locking claws 31, thereby invalidating the fixing structure.

[0047] In one embodiment, a first buckle 411 is provided on the inner wall of the outer body 4 to fit into the lower end surface of the inner body 1, thereby preventing axial movement of the outer body 4 relative to the inner body 1. This design makes the connection between the outer body 4 and the inner body 1 more stable, further improving the anti-pullout performance.

[0048] In one embodiment, the inner wall of the outer body 4 is provided with an anti-detachment buckle 422 that engages with the second boss 72 on the outer surface of the bottleneck 7, thereby preventing the outer body 4 from moving relative to the bottleneck 7 and further improving the connecting force between the fixing unit and the bottleneck 7.

[0049] In one embodiment, the outer main body 4 includes an outer main body body 41 and a slip-off prevention member 42 provided on the inner wall of the lower end of the outer main body body 41, the slip-off prevention member 42 having a plurality of slip-off prevention buckles 422 arranged in a circumferential direction, the slip-off prevention member 42 being made of a hard plastic material. This design achieves the following technical effects:

[0050] 1. Improved safety of the cap: The anti-detachment buckles 422 and the second bosses 72 of the inner body 4 and the outer body 4 are interlocked with each other, thereby improving the connecting strength between the cap and the bottle neck 7 and further improving the anti-detachment performance.

[0051] 2. Excellent anti-counterfeiting performance: The novel anti-removal design eliminates the need to destroy the original structure when removing the cap, making it impossible to recycle and providing anti-counterfeiting performance. The anti-removal member 42 is made of hard plastic, so it is difficult to deform when the cap is heated with a hair dryer or hot water. This prevents the outer body 4 from being removed from the bottle neck 7 by heating, and the only way to remove the cap is to destroy it. This achieves the purpose of making the cap disposable and not recyclable, providing a high level of anti-counterfeiting performance.

[0052] 3. Easy assembly: The separate outer body 4 structure simplifies the assembly of the cap. The fixing sleeve 3 is attached to the inner body 1 before the anti-detachment member 42 is attached, improving production efficiency.

[0053] 4. Stable structure: A structure for preventing relative rotation is provided between the inner body and the outer body 4, preventing the cap from rotating and becoming loose during use.

[0054] In one embodiment, the anti-detachment member 42 includes a ring-shaped main body 421, and the anti-detachment buckle 422 extends diagonally upward inward from the lower end of the main body 421. The anti-detachment buckle 422 is configured as an undercut structure, and the anti-detachment buckle 422 is difficult to detach from the second boss 72.

[0055] In one embodiment, the removal prevention member 42 further includes at least two positioning portions 423 that are provided on the inner wall of the main body portion 421 and spaced apart in the circumferential direction, and the at least two positioning portions 423 fit into the stepped outer peripheral surface of the bottleneck 7. When assembling the cap, the positioning portions 423 fit into the outer peripheral surface of the second boss 72, thereby ensuring concentricity and preventing the cap from shifting.

[0056] In one embodiment, a mounting groove 412 is provided on the inner wall of the lower end of the outer body 4 , and the body portion 421 is engaged in the mounting groove 412 .

[0057] In one embodiment, the inner diameter of the main body portion 421 is smaller than the outer diameter of the lower end of the fixed sleeve 3, so that the main body portion 421 serves to restrict the fixed sleeve 3 and prevent the fixed sleeve 3 from falling off.

[0058] Preferably, a preventive structure is provided between the outer body 4 and the inner body 1 to prevent relative rotation between them. As an example, the preventive structure includes a plurality of second ridges 413 provided on the inner wall of the outer body 4 and a plurality of first ridges 17 provided on the outer wall of the inner body 1, with the second ridges 413 interlocking between two adjacent first ridges 17. An inwardly extending flange 414 is provided on the inner wall of the outer body 4 at the plurality of second ridges 413. The engagement between the flange 414 and the second ridge 413 prevents the outer body 4 from moving axially downward relative to the inner body 1.

[0059] 1 and 11 to 13, the cover unit includes an outer cover 6 and an inner cover 5 fixedly fitted within the outer cover 6, and the inner wall of the inner cover 5 is provided with an internal thread 51 that fits with the external thread 121 of the inner body 1. The outer wall of the inner cover 5 is provided with an engagement groove 52, and the inner wall of the outer cover 6 is provided with an engagement protrusion 61 that fits into the engagement groove 52, so that the inner cover 5 and the outer cover 6 are fixedly connected by the engagement protrusion 61 being engaged into the engagement groove 52. Alternatively, the positions of the engagement protrusion 61 and the engagement groove 52 may be interchanged, i.e., the engagement protrusion 61 may be provided on the inner cover 5, and the engagement groove 52 may be provided on the outer cover 6.

[0060] In one embodiment, the inner cover 5 includes a cylindrical body 53 having a lower end opening and an upper end opening, and a top portion 54 connected to the upper end opening of the cylindrical body 53, the cylindrical body 53 being made of a hard plastic material, and the top portion 54 being made of a soft plastic material. In this design, the portion of the inner cover 5 where the engagement groove 52 is provided is made of a hard plastic, and the portion of the inner cover 5 that fits into the end face of the outlet portion is made of a soft plastic. In this way, the inner cover 5 meets the sealing requirements and increases the connection strength with the outer cover 6. When the cover unit is heated with a hair dryer or hot water, the portion of the inner cover 5 where the engagement groove 52 is provided is difficult to deform, and as a result, the outer cover 6 cannot be removed from the inner cover 5 by heating means. As a result, the only way to separate the engagement protrusions 61 and the engagement grooves 52 is to heat and deform the outer cover 6, and the only way to remove the cap is to destroy it, making the cap disposable and achieving the purpose of destroying the cap, but the cap cannot be recycled, which has a high anti-counterfeiting effect.

[0061] For example, the upper end surface of the cylindrical body 53 and the lower surface of the top 54 are in close contact with each other, thereby preventing leakage between the upper end surface of the cylindrical body 53 and the lower surface of the top 54. Since the cylindrical body 53 and the outer cover 6 are connected through the engaging protrusions 61 and the engaging grooves 52, when the engaging protrusions 61 of the outer cover 6 are engaged with the engaging grooves 52, the top 54 of the outer cover 6 is used to make close contact between the lower surface of the top 54 and the upper end surface of the cylindrical body 53. Alternatively, the upper end of the cylindrical body 53 and the top 54 are integrally molded by a secondary injection molding process, so that the cylindrical body 53 and the top 54 become one part, facilitating assembly.

[0062] In one embodiment, the cylinder 53 is made from ABS plastic and the top 54 is made from PE (polyethylene) plastic.

[0063] In one embodiment, a sealing ring 55 extends downward from the underside of the top 54. The sealing ring 55 is made of soft plastic and fits snugly against the outlet when the cap is fully tightened. The sealing ring 55 provides excellent sealing performance and prevents liquid leakage.

[0064] 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 body 4, with the first anti-counterfeiting ring 91 having a first anti-counterfeiting tooth (not shown) extending downward and the second anti-counterfeiting ring 92 having a second anti-counterfeiting tooth (not shown) extending upward. During use, when the outer cover 6 is turned to rotate the first anti-counterfeiting tooth, the first anti-counterfeiting tooth and / or the second anti-counterfeiting tooth are broken. Once the first anti-counterfeiting tooth and / or the second anti-counterfeiting tooth are twisted off, they cannot be restored, thereby achieving the purpose of anti-counterfeiting.

[0065] Another embodiment of the present invention provides a bottle body to be used in combination with the above-described thermal removal prevention cap. As shown in Fig. 14, the bottle body includes a bottle body (not shown) and a bottle neck 7 attached to the bottle body, with the bottle neck 7 having a bolt opening 76. A first boss 71 and a second boss 72 are provided on the outer wall of the bottle neck 7, spaced apart from each other from top to bottom, and a plurality of first anti-rotation recesses 74 are provided on the outer wall of the bottle neck 7 above the first boss 71, spaced apart from each other in the circumferential direction. Preferably, the width of the first anti-rotation recesses 74 decreases from top to bottom, so that the first anti-rotation protrusions 33 are smoothly inserted into the first anti-rotation recesses 74 when the seal is pressed, allowing for automatic correction.

[0066] 1 and 16, before the seal is pressed, the lower end of the mounting segment 11 of the inner body 1 is located above the locking claw 31, which is in a freely open state. At this time, the bottleneck 7 can be inserted into the slot 37 between the inside plug body 21 and the fixing sleeve 3, and the first anti-rotation protrusion 33 of the fixing sleeve 3 is inserted into the first anti-rotation recess 74 on the outer wall of the bottleneck 7. When the seal is pressed, downward pressure is applied to the thermal removal prevention cap, causing the inner body 1 to move downward relative to the fixing sleeve 3, and the lower end of the inner body 1 to slide along the outer surface 312 of the locking claw 31, which contracts and locks the first boss 71 of the bottleneck 7. At the same time, the anti-removal buckle 422 engages with the second boss 72, thereby fixing the thermal removal prevention cap to the bottleneck 7.

[0067] In the thermal removal prevention cap of the present invention, the fixing unit utilizes the expandable locking claw 31 on the fixing sleeve 3 and the first boss 71 on the bottle neck 7. Through an expansion structure, an undercut is formed inside the bolt, firmly integrating the inner plug 2 and the inner body 1 with the bolt, preventing separation even when heated to soften. Furthermore, the removal prevention buckle 422 on the outer body 4 engages with the second boss 72 on the bottle neck 7, further improving the connection between the fixing unit and the bottle neck 7. Separating the removal prevention buckle 422 and the second boss 72 requires heat deformation of the outer body 4. This makes the cap disposable, preventing it from being recycled, and providing a high level of anti-counterfeiting effect. This design meets market needs for cap safety, anti-counterfeiting performance, and ease of use, and is expected to be practical and promising for the future.

[0068] The method for assembling the thermal removal prevention cap in this embodiment is as follows.

[0069] Step 1: First, fix the inner body 1 to the first tooling, and screw the inner cover 5 to the inner body 1. Specifically, fit the mounting segment 11 of the inner body 1 onto the first support part of the first tooling, and insert the first ridge 17 of the inner body 1 into the anti-rotation groove of the first support part to prevent rotation of the inner body 1. Next, screw the inner cover 5 to the outlet segment 12 of the inner body 1 to form a first intermediate unit.

[0070] Step 2: Fit the outer main body 41 of the assembled second anti-counterfeit ring 92 into the first intermediate unit. Specifically, fit the outer main body 41 into the inner main body 1 as the first intermediate unit from top to bottom until the first buckle 411 of the outer main body 41 is caught on the lower end surface of the inner main body 1, thereby forming a second intermediate unit.

[0071] Step 3: Attach the outer cover 6 of the assembled first anti-counterfeit ring 91 to the inner cover 5. Specifically, fit the outer cover 6 onto the inner cover 5 from top to bottom until the engaging protrusions 61 of the outer cover 6 are engaged with the engaging grooves 52 of the inner cover 5, thereby forming a third intermediate unit.

[0072] Step 4: The inner plug 2 fitted with the glass beads is placed in the second tooling, and the inner plug 2 is crimped into the inner body 1. Specifically, the second tooling includes a second upright and a second support connected to the upper end of the second upright. The inner plug lower section 212 is inserted into the inner hole of the second support, and the third intermediate unit is fitted onto the inner plug 2 from top to bottom, stopping when the lower end of the outer body 4 contacts the limit step of the second tooling.

[0073] Step 5: The removal prevention member 42 is attached to the mounting groove 412 of the outer main body 41. Specifically, the removal prevention member 42 is fixed to the third tooling, the third intermediate unit is fitted onto the removal prevention member 42 from top to bottom, and the removal prevention member 42 is engaged into the mounting groove 412, thereby completing the assembly of the removal prevention cap.

[0074] The above examples are merely examples of the present invention, and the descriptions are relatively specific and detailed, but this should not be construed as limiting the scope of the present invention. However, those skilled in the art may make some modifications and improvements without departing from the concept of the present invention, and all of these fall within the scope of protection of the present invention. [Explanation of symbols]

[0075] 1 Inner body 11 Mounting Segment 111 Third rotation stopper protrusion 112 Restriction groove 12 Alcohol Exit Segment 121 Male thread 13 Stairs 14 Liquor Suppression Club 15 Connecting rib 16 Sake Exit Channel 17 First Ridge 2 inner stoppers 21 Inner stopper body 211 Upper stopper 212 Lower stopper 213 Sake outlet hole 22 Skirt Club 221 Sealed part 3 Fixed sleeve 31 Locking claw 311 Inner surface 312 External surface 313 End face 314 Bump 32 notches 33 First rotation stopper protrusion 36 Second anti-rotation recess 37 slots 4 Outerwear 41 Outer body 411 First Buckle 412 Mounting groove 413 Second Ridge 414 flange 42 Anti-removal member 421 Main body 422 Anti-slip buckle 423 Positioning part 5 Inner cover 51 Female thread 52 engagement groove 53 Cylinder 54 Top 55 Sealing ring 6 Outer cover 61 Engagement protrusion 7. Bottleneck 71 First Boss 72 Second Boss 74 First rotation stop recess 76 Bolt mouth 8 Sealing Beads 91 First Anti-Counterfeit Ring 92 Second Anti-Counterfeit Ring

Claims

1. a bottle body including a bottle neck; an inner body including a liquor outlet segment and a mounting segment; and an inner plug including an inner plug body positioned within the inner body, an outer wall of the bottleneck is provided with a first boss extending in a circumferential direction, and first rotation stop recesses or first rotation stop protrusions provided above the first boss and spaced apart in the circumferential direction; The fixing sleeve further includes a fixing sleeve, the fixing sleeve being inserted into the mounting segment and forming a slot between the fixing sleeve and the inside plug body, the fixing sleeve having a first rotation stop convex portion or a first rotation stop concave portion on an upper inner wall thereof that fits into the first rotation stop concave portion or the first rotation stop convex portion, the fixing sleeve having a lower portion on which a plurality of openable and closable locking claws are arranged in a circumferential direction, the bottleneck is inserted into the slot, the first rotation stop convex portion is engaged into the first rotation stop concave portion, and the locking claws are contracted by the mounting segment to engage with the first boss, A fixing structure for the inner body and bottle neck of a thermal removal prevention cap, characterized in that a rotation prevention structure for preventing relative rotation in both directions and an axial restriction structure for preventing relative movement in both directions are provided between the fixing sleeve and the mounting segment.

2. 2. The fixing structure for fixing the inner body and bottle neck of a thermal removal prevention cap as described in claim 1, characterized in that the rotation prevention structure includes a second rotation prevention protrusion or a second rotation prevention recess provided on the outer wall of the fixing sleeve, and a third rotation prevention recess or a third rotation prevention protrusion provided on the inner wall of the mounting segment, which fits into the second rotation prevention protrusion or the second rotation prevention recess.

3. 3. A fixing structure for the inner body and bottle neck of a thermal removal prevention cap as described in claim 2, characterized in that the inner diameter and outer diameter of the upper part of the fixing sleeve gradually decrease from bottom to top, the second rotation prevention protrusion or second rotation prevention recess is provided on the outer wall of the upper part of the fixing sleeve, and the radial height of the second rotation prevention protrusion or second rotation prevention recess gradually increases from bottom to top.

4. 2. The fixing structure of claim 1, wherein the inner wall of the mounting segment is provided with a plurality of limiting grooves spaced apart in the circumferential direction, and when the inner body slides downward to a predetermined position relative to the fixing sleeve, the lower outer edge of at least one of the locking claws engages with at least one of the limiting grooves to form the axial limiting structure.

5. 5. The fixing structure for fixing the inner body and the bottle neck of a thermal removal prevention cap according to claim 4, wherein the width of the limiting groove is larger than the width of the locking claw in the circumferential direction.

6. 2. The fixing structure for the inner body and the bottle neck of a thermal removal prevention cap according to claim 1, wherein the fixing sleeve is made of a hard plastic material.

7. 2. The fixing structure for fixing the inner body and the bottle neck of the thermal removal prevention cap according to claim 1, wherein a bump is provided on the inner surface of the locking claw.

8. 2. The fixing structure for fixing the inner body and the bottle neck of a thermal removal prevention cap according to claim 1, wherein the outer surfaces of the plurality of locking claws are on a conical surface.

9. 2. The fixing structure for the inner body and bottle neck of a thermal removal prevention cap according to claim 1, characterized in that the lower part of the fixing sleeve has a plurality of notches arranged at intervals in the circumferential direction and penetrating along the axial direction to the lower end surface of the fixing sleeve, thereby forming the locking claws.

10. A thermal removal prevention cap, A fixing structure according to any one of claims 1 to 9; a cylindrical outer body that is fitted onto the mounting segment of the inner body and has, between the mounting segment and the outer body, a rotation prevention structure that prevents relative rotation in both directions and an axial restriction structure that prevents relative movement in both axial directions.

11. The heat-resistant removal prevention cap according to claim 10, characterized in that the inner wall of the outer body is provided with a removal prevention buckle that fits into a second boss on the outer wall of the bottle neck, and the second boss is located below the first boss.

12. The heat-resistant removal prevention cap according to claim 11, characterized in that the outer main body includes an outer main body body and an anti-removal member, the anti-removal member being made of a hard plastic material and including an annular main body portion and the anti-removal buckle, the main body portion being inserted into the lower end of the outer main body body, and the anti-removal buckle extending diagonally upward and inward from the lower end of the main body portion.

13. The thermal removal prevention cap according to claim 12, wherein the removal prevention member further includes at least two positioning portions, which are provided on an inner wall of the main body portion and spaced apart in a circumferential direction.

14. 13. The thermal removal prevention cap according to claim 12, wherein an attachment groove is provided on an inner wall of a lower end of the outer body, and the main body of the removal prevention member is fitted into the attachment groove.

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