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

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

[0002] A liquor bottle is generally composed of a bottle body and a heat-resistant cap. After the liquor is filled into the bottle body, the heat-resistant cap is generally sealed on the bottle neck of the bottle body. Existing heat-resistant caps generally include a fixed unit fixed to the bottle neck, a movable unit that can be loosened, and an anti-counterfeiting structure disposed between the fixed unit and the movable unit. When the cap is removed for use, the anti-counterfeiting structure is destroyed and cannot be repaired. As a result, the purpose of anti-counterfeiting is achieved by destroying the cap. However, the fixed unit is generally fixed to the bottle neck via a buckle or a rotation-stopping rib, and the buckle and the rotation-stopping rib are both plastic members. Therefore, when the fixed unit is heated with a hair dryer or hot water, the buckle and the rotation-stopping rib become ineffective, and the fixed unit can be easily removed. Therefore, fraudsters can achieve the purpose of counterfeiting by recycling the bottle and the heat-resistant cap, and the anti-counterfeiting effect is not ideal. 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 being damaged by heating, and the fixing structure comprises: a bottle body including a bottle neck; An inner body including a liquor outlet segment and an attachment segment, and a fixing structure between the inner body and a bottle neck of a heat removal prevention cap, The outer wall of the bottleneck is provided with a first boss extending in a circumferential direction, and a first rotation stop recess or a first rotation stop protrusion disposed above the first boss and spaced apart in the circumferential direction; The bottleneck further includes a fixing sleeve, the fixing sleeve being inserted into the mounting segment and forming a slot between the fixing sleeve and the plug body, the fixing sleeve having an upper inner wall provided with a first rotation stop protrusion or a first rotation stop recess that fits into the first rotation stop protrusion or the first rotation stop protrusion, the fixing sleeve having a lower portion provided with a plurality of openable and closable locking claws arranged in the circumferential direction, the bottleneck being inserted into the slot, the first rotation stop protrusion being engaged into the first rotation stop recess, and the locking claws being contracted by the mounting segment to engage with the first boss.

[0004] In the fixing structure between the inner body and the bottleneck of the heat removal prevention cap of the present invention, the fixing sleeve is designed with an expansion structure, and the openable and closable locking claw of the fixing sleeve is combined with the first boss of the bottleneck, forming an undercut inside the cap, so that the fixing sleeve and the inner body are firmly connected to the bottleneck and integrated. Even if heated to soften, the cap cannot be separated from the bottleneck. With this design, the only way to remove the cap is to destroy it, ensuring the disposability of the cap and achieving the purpose of anti-counterfeiting. Since the cap cannot be recycled, the anti-counterfeiting effect is remarkable.

[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 is provided between the fixing sleeve and the mounting segment to prevent relative rotation between the two, and an axial limiting structure is provided between the fixing sleeve and the mounting segment to prevent relative movement between the two in the axial direction.

[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 rotation stop protrusion or the second rotation stop recess is provided on the outer wall of the upper part of the fixed sleeve, and the radial height of the second rotation stop protrusion or the second rotation stop 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 limiting 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 limiting grooves to form the axial limiting 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 locking sleeve is made of a hard plastic material.

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

[0013] In one embodiment, the lower portion of the fixing sleeve is provided with a plurality of notches spaced apart in the circumferential direction and extending axially to the lower end surface of the fixing sleeve, thereby 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; A cylindrical inner plug is provided inside the inner body, and has an upper end inserted into the liquor outlet segment and sealingly fitted into the inner wall of the liquor outlet segment, and a lower end inserted into the bottleneck and sealingly fitted into the inner wall of the bottleneck. 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, an upper inner wall of the fixing sleeve is 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 a lower part of the fixing sleeve is provided with a plurality of openable and closable locking claws arranged in a circumferential direction, the locking claws contract inwardly by the action of the lower end of the inner body and can tightly engage with a 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 convex portion or a second concave portion provided on an outer wall of the fixing sleeve and a third concave portion or a third convex portion provided on an inner wall of the mounting segment, and the third concave portion or the third convex portion engages with the second convex portion or the second concave portion.

[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 fixing sleeve and the mounting segment preventing 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 outwardly from an outer wall of the plug body, the skirt portion fitting sealingly into an opening at an upper end of the fixation sleeve.

[0023] In one embodiment, the lower end of the skirt portion is provided with a sealing portion that fits 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-removal buckle is provided on the inner wall of the outer body to fit into a second boss on the outer wall of the bottleneck, the second boss being 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 anti-removal 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, a mounting groove is provided on the inner wall of the lower end of the outer body, and the main body of the removal prevention member is engaged in the mounting 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 description of the drawings]

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

[0031] In order to make the above 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 creative labor all belong to 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 the parts in the drawings and the positions between the parts, and are merely for expressing technical solutions clearly and conveniently. 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 present specification are for describing specific embodiments only and are not intended to limit the present invention.

[0034] As shown in FIG. 1, an example of a heat removal prevention cap is mainly composed of a fixing unit fixed to a bottleneck 7, a cover unit covered by 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, sealing beads 8, and an outer body 4.

[0035] As shown in FIG. 1 and FIG. 3 to FIG. 5, the inner body 1 is generally cylindrical and includes a liquor outlet segment 12 and an attachment segment 11 connected from top to bottom. The outer peripheral surface of the liquor outlet segment 12 is provided with a male thread 121 for connecting to the cover unit. The liquor outlet segment 12 is provided with a liquor shielding portion 14 in the center. 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. 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 FIG. 1 and FIG. 6, the plug 2 includes a plug body 21 and a skirt portion 22. The plug body 21 is configured as a cylindrical body and includes a plug upper section 211 and a plug lower section 212 connected from top to bottom. The plug upper section 211 is inserted into the liquor outlet segment 12 and fits sealingly to the inner wall of the liquor outlet segment 12. The plug lower section 212 is inserted into the bottleneck 7 and fits sealingly to the inner wall of the bottleneck 7. The bottom of the plug lower section 212 is provided with a liquor outlet hole 213 through which the liquor flows. In order to facilitate insertion into the bottleneck 7, the lower end of the plug lower section 212 is conical. In this embodiment, the inner diameter of the plug upper section 211 is larger than the inner diameter of the plug lower section 212, and a step is formed between them. The skirt portion 22 extends radially outward from the outer wall of the plug body 21, and the skirt portion 22 fits sealingly to the upper end opening of the fixed sleeve 3. A sealing bead 8 is mounted within the plug 2 .

[0038] As shown in Figures 1, 2, 7 and 8, the fixed sleeve 3 has a cylindrical structure, the fixed sleeve 3 is inserted into the mounting segment 11, a slot 37 into which the bottleneck 7 is inserted is provided between the inner wall of the fixed sleeve 3 and the outer wall of the inner plug lower stage 212, a first rotation stop protrusion 33 (or first rotation stop recess) is provided on the upper inner wall of the fixed sleeve 3 which fits into the first rotation stop recess 74 (or first rotation stop protrusion) in the bottleneck 7, and a plurality of openable and closable locking claws 31 arranged in the circumferential direction are provided on the lower part of the fixed sleeve 3. Before the seal is pressed, the locking claw 31 is in an open state, and the bottleneck 7 can be inserted into the slot 37 between the inner plug body 21 and the fixed sleeve 3. During the seal pressing, 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 side surface 312 of the locking claw 31, whereby the locking claw 31 contracts and engages with the first boss 71. By making the fixed sleeve 3 have such a structure, the relative rotation between the fixed sleeve 3 and the bottleneck 7 is stopped by the first rotation stop recess 74 and the first rotation stop protrusion 33 engaging with each other, and the relative axial movement between the fixed sleeve 3 and the bottleneck 7 is stopped by the locking claw 31 and the first boss 71 engaging with each other. This design enhances the removal prevention function and improves the attachment stability of the cap.

[0039] As an example, the fixed sleeve 3 and the inner plug 2 are separate structures, the fixed sleeve 3 is made of a hard plastic material, and a rotation stop structure for preventing relative rotation between the fixed sleeve 3 and the mounting segment 11 and an axial limiting structure for preventing relative movement between the fixed sleeve 3 and the mounting segment 11 are provided. Because the fixed sleeve 3 is made of a hard plastic material (e.g., ABS plastic), when the cap is heated with a hair dryer or hot water, the fixed sleeve 3 is not easily deformed, and therefore the fixed sleeve 3 cannot be removed from the bottleneck 7 by the heating means, so the only way to remove the cap is to destroy it, making the cap disposable and achieving the purpose of destroying the cap, and the cap cannot be recycled, which has a high anti-counterfeiting effect. Alternatively, the fixed sleeve 3 and the inner plug 2 are one-piece structures.

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

[0041] In one embodiment, as shown in FIG. 4 and FIG. 5, the inner wall of the mounting segment 11 is provided with a plurality of limiting grooves 112 spaced apart from each other in the circumferential direction, and after sealing pressing, the lower outer edge of at least one of the locking claws 31 is engaged into at least one of the limiting grooves 112, thereby preventing the relative axial movement of the fixing sleeve 3 and the inner body 1. In this design, the locking claws 31 also play the role of axial restriction, which helps simplify the structure. As an example, the inner wall of the mounting segment 11 is provided with four limiting grooves 112 spaced apart from each other in the circumferential direction, and the limiting grooves 112 are elongated and extend in the circumferential direction, and the length of the limiting grooves 112 is greater than the length of the locking claws 31 in the circumferential direction, so that the assembly of the fixing sleeve 3 is not directional and is easy. In this design, the installation process is simplified and the production efficiency is improved.

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

[0043] In one embodiment, a plurality of notches 32 are provided at the lower part of the fixing sleeve 3, which are spaced apart in the circumferential direction and extend along the axial direction 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 section that is an approximate right triangle, and has an inner surface 311, an outer surface 312, and an end surface 313, the outer surfaces 312 of the plurality of locking claws 31 being on the same conical surface, the inner surface 311 being parallel to the axial direction of the fixing sleeve 3, and the end surface 313 being perpendicular to the axial direction of the fixing sleeve 3. Such a 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 protrusion 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 fits the structure of the upper part of the bottleneck while leaving a position for the third rotation stop protrusion 111 of the inner body 1.

[0045] In one embodiment, the inner surface 311 of the locking claw 31 is provided with a bump 314, which improves the coupling force between the locking claw 31 and the first boss 71. In this design, the coupling between the locking claw 31 and the first boss 71 is stronger, and the anti-pullout performance is further improved.

[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 stop structure for preventing relative rotation between the outer body 4 and the mounting segment 11, and an axial limiting structure for preventing 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 holds 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 making the fixing structure ineffective.

[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 the outer body 4 from moving in the axial direction relative to the inner body 1. In this design, the connection between the outer body 4 and the inner body 1 is more stable, and the anti-pullout performance is further improved.

[0048] In one embodiment, the inner wall of the outer body 4 is provided with an anti-detachment buckle 422 that engages with a second boss 72 on the outer peripheral 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 is provided with a plurality of slip-off prevention buckles 422 arranged in a circumferential direction, and the slip-off prevention member 42 is made of a hard plastic material. According to this design, the following technical effects are achieved.

[0050] 1. Improved safety of the cap: The anti-slip buckle 422 and the second boss 72 of the inner body 4 and the outer body 4 fit together to improve the connecting strength between the cap and the bottleneck 7, further improving the anti-slip performance.

[0051] 2. Excellent anti-counterfeiting performance: The new anti-removal design eliminates the need to destroy the original structure when removing the cap, making the cap unrecyclable and preventing counterfeiting. The material of the anti-removal member 42 is hard plastic, and when the cap is heated with a hair dryer or hot water, the anti-removal member 42 is not easily deformed, so that the outer body 4 cannot be pulled out of the bottle neck 7 by heating means, and the only way to pull out the cap is to destroy it, making the cap disposable and achieving the purpose of destroying the cap, which cannot be recycled, and has a high anti-counterfeiting effect.

[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 removal prevention 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, thereby preventing the cap from rotating and coming loose during use.

[0054] In one embodiment, the anti-removal member 42 includes a ring-shaped main body portion 421, and the anti-removal buckle 422 extends diagonally upward and inward from the lower end of the main body portion 421. The anti-removal buckle 422 is configured as an undercut structure, and the anti-removal 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 circumferential surface of the bottleneck 7. When assembling the cap, the positioning portions 423 fit into the outer circumferential 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 body portion 421 is smaller than the outer diameter of the lower end of the fixing sleeve 3, so that the body portion 421 serves to restrict the fixing sleeve 3 and prevent the fixing sleeve 3 from falling off.

[0058] Preferably, a prevention structure is provided between the outer body 4 and the inner body 1 to prevent relative rotation between them. As an example, the prevention 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, and the second ridges 413 are engaged between two adjacent first ridges 17. The inner wall of the outer body 4 at the plurality of second ridges 413 is provided with a flange 414 extending inward. 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 in the outer cover 6, and an internal thread 51 that fits with an external thread 121 of the inner body 1 is provided on the inner wall of the inner cover 5. An engagement groove 52 is provided on the outer wall of the inner cover 5, and an engagement protrusion 61 that fits with the engagement groove 52 is provided on the inner wall of the outer cover 6, and the inner cover 5 and the outer cover 6 are fixedly connected by the engagement protrusion 61 being engaged in the engagement groove 52. As an alternative, 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 cylinder 53 having a lower end opening and an upper end opening, and a top part 54 connected to the upper end opening of the cylinder 53, the cylinder 53 being made of a hard plastic material, and the top part 54 being made of a soft plastic material. In this design, the part of the inner cover 5 where the engagement groove 52 is provided is made of hard plastic, and the part of the inner cover 5 that fits into the end face of the outlet part is made of 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 in which 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. Therefore, 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, and the cap cannot be recycled, providing a high anti-counterfeiting effect.

[0061] As an example, the upper end surface of the cylinder 53 and the lower surface of the top 54 are in close contact with each other, thereby preventing liquid leakage between the upper end surface of the cylinder 53 and the lower surface of the top 54. Since the cylinder 53 and the outer cover 6 are connected through the engagement protrusion 61 and the engagement groove 52, when the engagement protrusion 61 of the outer cover 6 is engaged into the engagement groove 52, the top 54 of the outer cover 6 is used to make the lower surface of the top 54 and the upper end surface of the cylinder 53 in close contact with each other. As an alternative, the upper end of the cylinder 53 and the top 54 are integrally molded by a secondary injection molding process, so that the cylinder 53 and the top 54 become one part, which makes assembly easy.

[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, there is a downwardly extending sealing ring 55 on the underside of the top 54, which is made of soft plastic and fits snugly against the outlet when the cap is fully tightened. The sealing ring 55 has good 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, the first anti-counterfeiting ring 91 is provided with a first anti-counterfeiting tooth (not shown) extending downward, and the second anti-counterfeiting ring 92 is provided with a second anti-counterfeiting tooth (not shown) extending upward. When using, 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] In another embodiment of the present invention, a bottle body is provided for use in combination with the above-mentioned heat removal prevention cap. As shown in Fig. 14, the bottle body includes a bottle body (not shown) and a bottle neck 7 provided on the bottle body, and the bottle neck 7 has a bolt mouth portion 76. A first boss 71 and a second boss 72 are provided on the outer wall of the bottle neck 7, which are spaced apart from each other from top to bottom, and a plurality of first rotation stop recesses 74 are provided on the outer wall of the bottle neck 7 above the first boss 71, which are spaced apart from each other in the circumferential direction. Preferably, the width of the first rotation stop recesses 74 decreases from top to bottom, so that the first rotation stop protrusions 33 can be smoothly inserted into the first rotation stop recesses 74 during seal pressing and can be automatically corrected.

[0066] 1 and 16, before the seal pressing, the lower end of the mounting segment 11 of the inner body 1 is located above the locking claw 31, and the locking 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 body 21 and the fixed sleeve 3, and the first rotation stopper protrusion 33 of the fixed sleeve 3 is inserted into the first rotation stopper recess 74 on the outer wall of the bottleneck 7. When the seal pressing is performed, a downward pressure is applied to the heat removal prevention cap, and 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, so that the locking claw 31 contracts to lock the first boss 71 of the bottleneck 7, and at the same time, the locking buckle 422 is engaged with the second boss 72, so that the heat removal prevention cap is fixed to the bottleneck 7.

[0067] In the heat-resistant removal-prevention cap of the present invention, the fixing unit uses the expandable locking claw 31 of the fixing sleeve 3 and the first boss 71 of the bottleneck 7 to form an undercut inside the bolt through the design of an expansion structure, and the inside plug 2 and the inner body 1 are firmly integrated with the bolt, and cannot be separated even when heated to soften. In addition, the removal prevention buckle 422 of the outer body 4 is engaged with the second boss 72 of the bottleneck 7, which further improves the binding force between the fixing unit and the bottleneck 7, and the removal prevention buckle 422 and the second boss 72 must be deformed by heating. As a result, the cap can only be removed by destroying it, which makes the cap disposable and achieves the purpose of destroying the cap, and the cap cannot be recycled, and has a high anti-counterfeiting effect. This design meets the market needs for the safety, anti-counterfeiting performance and convenience of use of the cap, and is expected to be put to practical use and have a future potential.

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

[0069] Step 1: First, the inner body 1 is fixed to the first tooling, and the inner cover 5 is screwed to the inner body 1. Specifically, the mounting segment 11 of the inner body 1 is fitted to the first support part of the first tooling, and the first ridge 17 of the inner body 1 is inserted into the rotation prevention groove of the first support part to prevent the inner body 1 from rotating. Next, the inner cover 5 and the liquor outlet segment 12 of the inner body 1 are screwed to form a first intermediate unit.

[0070] Step 2: The outer main body 41 of the assembled second anti-counterfeit ring 92 is fitted into the first intermediate unit. Specifically, the outer main body 41 is fitted 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 hooked onto the lower end surface of the inner main body 1, thereby forming the 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, the outer cover 6 is fitted onto the inner cover 5 from top to bottom until the engagement protrusions 61 of the outer cover 6 are engaged into the engagement 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 pillar and a second support part connected to the upper end of the second upright pillar. The inner plug lower stage 212 is inserted into the inner hole of the second support part, and the third intermediate unit is fitted onto the inner plug 2 from top to bottom, and stops when the lower end of the outer body 4 comes into contact with 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 above and below, 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 description is relatively specific and detailed, but this should not be understood as limiting the scope of the present invention. However, those skilled in the art can make some modifications and improvements without departing from the concept of the present invention, and all of these belong to 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 Outlet Channel 17 First Ridge 2 Inner stopper 21 Inner plug body 211 Middle stopper upper row 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 Outer body 41 Outer body 411 First Buckle 412 Mounting groove 413 Second Ridge 414 Flange 42 Anti-removal member 421 Main body 422 Anti-removal 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. Bottlenecks 71 First Boss 72 Second Boss 74 First rotation stop recess 76 Bolt mouth 8 Sealing Beads 91 The first anti-counterfeiting 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 located within the inner body, The outer wall of the bottleneck is provided with a first boss extending in a circumferential direction, and a first rotation stop recess or a first rotation stop protrusion disposed above the first boss and spaced apart in the circumferential direction; a fixing sleeve that is inserted into the mounting segment and forms a slot between the fixing sleeve and the inner plug body, a first rotation stop protrusion or a first rotation stop recess that fits into the first rotation stop recess or the first rotation stop protrusion is provided on an upper inner wall of the fixing sleeve, and a plurality of openable and closable locking claws are provided on a lower part of the fixing sleeve and arranged in a circumferential direction, the bottleneck is inserted into the slot, the first rotation stop protrusion is engaged into the first rotation stop recess, and the locking claws are contracted by the mounting segment to engage with the first boss.

2. The fixing structure between the inner body and the bottle neck of a thermal removal prevention cap as described in claim 1, characterized in that 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 and the mounting segment.

3. The fixing structure between the inner body and the bottleneck of a thermal removal prevention cap as described in claim 2, 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.

4. The fixing structure between the inner body and the bottleneck of a thermal removal prevention cap as described in claim 3, characterized in that the inner diameter and outer diameter of the upper part of the fixed sleeve gradually become smaller from bottom to top, the second rotation stop protrusion or the second rotation stop recess is provided on the outer wall of the upper part of the fixed sleeve, and the radial height of the second rotation stop protrusion or the second rotation stop recess gradually becomes larger from bottom to top.

5. The fixing structure between the inner body and the bottleneck of a thermal removal prevention cap as described in claim 2, characterized in that the inner wall of the mounting segment is provided with a plurality of limiting grooves arranged at intervals 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 into at least one of the limiting grooves to form the axial limiting structure.

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

7. 2. The fixing structure for the inner body and the bottle neck of a heat-resistant cap according to claim 1, wherein the fixing sleeve is made of a hard plastic material.

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 a bump is provided on an inner surface of the locking claw.

9. 2. The fixing structure of claim 1, wherein the outer surfaces of the plurality of locking claws are on a cone surface.

10. The fixing structure for the inner body and the bottle neck of the thermal removal prevention cap described in claim 1, characterized in that a plurality of notches are provided in the lower part of the fixing sleeve, which are spaced apart in the circumferential direction and extend along the axial direction to the lower end surface of the fixing sleeve, thereby forming the locking claws.

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

12. The heat-resistant removal-prevention cap according to claim 11, characterized in that the inner wall of the outer body is provided with an anti-removal buckle that fits into a second boss on the outer wall of the bottleneck, the second boss being located below the first boss.

13. The heated removal prevention cap described in claim 12, 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.

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

15. 14. The heat removal prevention cap according to claim 13, 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 engaged in the attachment groove.

Images