Sealing cover and using method thereof

Abstract

The invention discloses a sealing cover and a using method thereof.The sealing cover comprises an outer-layer cover body and an inner-layer cover body, the outer-layer cover body is provided with an anti-loosening structure, and the anti-loosening structure is provided with a mounting position; the inner-layer cover body is arranged on the inner side of the outer-layer cover body, and the inner-layer cover body can be screwed and matched with the bottle body, so that at least one part of the convex blocking part of the bottle body is arranged in the mounting position; wherein the inner-layer cover body is provided with an anti-opening structure, the anti-opening structure is arranged behind the anti-loosening structure in the screwing direction of the inner-layer cover body and the bottle body, and the anti-opening structure is used for providing appearance indication for opening of the sealing cover. The anti-loosening function and the anti-opening function can be prevented from failing at the same time when a product is impacted, and the problem that the opening experience of a user is affected due to the fact that the unscrewing torque is too large is solved.

Description

Technical Field

[0001] This application relates to the field of bottle cap technology, and in particular to a sealing cap and its method of use. Background Technology

[0002] Traditional sealing caps use a structural design that combines threaded engagement with ratchet anti-loosening. The ratchet part is usually designed as a full circle of irreversible reverse teeth. The purpose of this design is twofold: firstly, to achieve an anti-loosening effect during transportation, and secondly, to ensure that the ratchet part separates from the cap body when unscrewing, thus achieving an opening indication function.

[0003] However, the anti-loosening and anti-opening functions are inherently contradictory. When traditional sealing caps are subjected to vibration and impact under harsh transportation conditions, if the cap loosens, the ratchet mechanism used to provide the opening indication function will be damaged simultaneously, ultimately causing both the sealing performance and the anti-opening function to fail. To reduce the risk of the cap loosening, related sealing caps typically employ a design that increases the torque of the top cover, but this design correspondingly increases the opening torque, affecting the user's opening experience. Summary of the Invention

[0004] This application aims to at least solve one of the aforementioned technical problems existing in the prior art. Therefore, the purpose of this application is to provide a sealing cap that prevents the simultaneous failure of its anti-loosening and anti-opening functions when the product is subjected to impact, thereby reducing the problem of excessive opening torque affecting the user's opening experience.

[0005] This application also proposes a method of using the aforementioned sealing cap.

[0006] The sealing cap according to the first aspect of this application includes: The outer cover is provided with an anti-loosening structure, and the anti-loosening structure is provided with an installation position; An inner cap is disposed inside the outer cap and can be screwed onto the bottle so that at least a portion of the protrusion of the bottle is disposed within the mounting position. The inner cap is provided with an anti-opening structure. Along the direction in which the inner cap is screwed onto the bottle body, the anti-opening structure is located behind the anti-loosening structure. The anti-opening structure is used to provide an appearance indication for opening the sealing cap.

[0007] The sealing cap according to the embodiments of this application has at least the following beneficial effects: the outer cap body is provided with an anti-loosening structure, and the inner cap body is provided with an anti-opening structure. By designing the anti-loosening structure and the anti-opening structure independently, the anti-loosening function and the anti-opening function can be prevented from failing simultaneously when the product is impacted. Furthermore, the torque parameters of the anti-loosening structure and the anti-opening structure can be set separately according to usage requirements, eliminating the need to increase the cap torque to reduce the risk of loosening, thereby reducing the problem of excessive opening torque affecting the user's opening experience. Simultaneously, the inner cap body is located inside the outer cap body, and the anti-opening structure on the inner cap body is protected by the outer cap body when not in the open state, which can improve the impact resistance of the anti-opening structure and prevent it from breaking due to impact. In addition, when the inner cap body is screwed tightly onto the bottle body, at least a portion of the protruding part of the bottle body is located within the installation position, and the anti-loosening structure can play a first-line anti-retraction role, ensuring the anti-loosening effect of the sealing cap during transportation. In addition, along the direction in which the inner cap is screwed onto the bottle, the anti-opening structure is located behind the anti-loosening structure. When the vibration during transportation causes the protruding part of the bottle to detach from the anti-loosening structure, the anti-opening structure can play a second role in preventing the sealing cap from failing due to further loosening.

[0008] According to some embodiments of this application, along the circumferential direction of the inner cover, at least one end of the anti-opening structure is connected to the inner cover to form an indicator portion, which can be deformed or broken to indicate that the sealing cover has been opened.

[0009] According to some embodiments of this application, the anti-opening structure is disposed at the bottom of the inner cap. When the inner cap is screwed tightly to the bottle body, along the central axis of the inner cap, the distance between the side of the anti-opening structure away from the inner cap and the inner cap is L1, and the distance between the side of the protrusion of the bottle body away from the inner cap and the inner cap is L2. Wherein, L1 and L2 satisfy the relationship: L1 > L2.

[0010] According to some embodiments of this application, along the central axis of the outer cover, the distance between the bottom of the outer cover and the bottom of the inner cover is L3, wherein L3 and L1 satisfy the relationship: L3 > L1.

[0011] According to some embodiments of this application, the anti-opening structure includes a connecting portion and a blocking portion connected to the connecting portion. The connecting portion is connected to the inner cover, and the blocking portion is set at a certain angle to the connecting portion so that the anti-opening structure bends toward the anti-loosening structure.

[0012] According to some embodiments of this application, a first gap is provided between the blocking portion and the inner cover, the first gap being used to provide deformation space for the blocking portion.

[0013] According to some embodiments of this application, the anti-opening structure is provided with a first guide slope, which is used to guide the protruding part of the bottle body.

[0014] According to some embodiments of this application, the outer cover is provided with an observation port, which is correspondingly provided with the anti-opening structure, and the observation port is used to observe whether the anti-opening structure is deformed or falls off.

[0015] According to some embodiments of this application, the anti-loosening structure includes an anti-over-rotation portion and an anti-loosening portion, wherein the anti-over-rotation portion and the anti-loosening portion are spaced apart to form the mounting position, and the anti-loosening portion is disposed between the anti-over-rotation portion and the anti-opening structure.

[0016] According to some embodiments of this application, the line connecting the side of the anti-opening structure near the anti-loosening structure with the axis of the inner cap is defined as a first line segment, and the line connecting the side of the anti-loosening part near the anti-over-rotation part with the axis of the inner cap is defined as a second line segment. The included angle between the first line segment and the second line segment is smaller than the sealing angle between the inner cap and the bottle body.

[0017] According to some embodiments of this application, the anti-over-rotation portion includes a base and an extension connected to the base, the base being connected to the outer cover, and the extension being disposed at a certain angle to the base.

[0018] According to some embodiments of this application, a second gap is provided between the anti-loosening part and the outer cover, the second gap being used to provide deformation space for the anti-loosening part.

[0019] According to some embodiments of this application, the anti-loosening part is provided with a second guide slope, which is used to guide the protruding part of the bottle body.

[0020] The sealing cap usage method according to the second aspect embodiment of this application, using the sealing cap as described in the first aspect embodiment of this application, includes the following steps: The sealing cap is placed over the mouth of the bottle body; Rotate the sealing cap in the direction in which the inner cap is screwed onto the bottle body. The protruding part of the bottle body passes through the anti-opening structure and enters the installation position of the anti-loosening structure, so that the protruding part of the bottle body is located between the anti-loosening part and the anti-over-rotation part of the anti-loosening structure, and the sealing cap is screwed onto the bottle body in place.

[0021] The sealing cap usage method according to the embodiments of this application has at least the following beneficial effects: After the sealing cap is placed on the bottle opening, the sealing cap is rotated in the tightening direction between the inner cap and the bottle. The protruding part of the bottle enters the installation position of the anti-loosening structure after passing through the anti-opening structure, thereby achieving the sealing cap and the bottle being tightened in place. The operation process is simple and efficient, and the assembly of the sealing cap can be completed without complicated operation steps. In addition, when the protruding part of the bottle is located between the anti-loosening part and the anti-over-rotation part, the anti-over-rotation part can limit the protruding part of the bottle, preventing the sealing cap from being over-tightened with the bottle. The anti-loosening part can restrict the loosening movement of the protruding part of the bottle in the unscrewing direction, so that when the sealing cap is subjected to vibration or impact, the protruding part of the bottle can be constrained between the anti-loosening part and the anti-over-rotation part, preventing the sealing cap from loosening. At the same time, when the protruding part of the bottle is disengaged from the anti-loosening structure due to transportation vibration, the anti-opening structure can stop the protruding part of the bottle from moving backward, preventing the sealing cap from failing due to further loosening.

[0022] According to some embodiments of this application, the method of using the sealing cap further includes a method for determining whether the sealing cap is open, comprising the following steps: Rotate the sealing cap in the direction in which the inner cap is unscrewed from the bottle body; The protruding part of the bottle body passes through the anti-loosening structure and the anti-opening structure in sequence; If the anti-opening structure is observed to be deformed or fall off through the observation port of the outer cover, it can be determined that the sealing cover has been opened.

[0023] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0024] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is one of the schematic diagrams showing the connection between the sealing cap and the bottle body in an embodiment of this application; Figure 2 This is one of the structural schematic diagrams of the sealing cap in an embodiment of this application; Figure 3 for Figure 2 Enlarged view of section A; Figure 4 This is a second schematic diagram showing the connection between the sealing cap and the bottle body in an embodiment of this application; Figure 5 for Figure 4 Enlarged view of section B; Figure 6 This is a second schematic diagram of the sealing cap structure according to an embodiment of this application; Figure 7 This is the third schematic diagram of the sealing cap structure in the embodiments of this application; Figure 8 This is an enlarged view of part C in section 7; Figure 9 This is the fourth schematic diagram of the sealing cap structure in the embodiments of this application; Figure 10 This is an enlarged view of part D in section 9; Figure 11 This is the third schematic diagram showing the connection between the sealing cap and the bottle body in an embodiment of this application; Figure 12 This is an enlarged view of part E in section 11; Figure 13 This is a cross-sectional view of the sealing cap according to an embodiment of this application; Figure 14 This is the fifth schematic diagram of the sealing cap structure in the embodiments of this application; Figure 15 This is the fourth schematic diagram showing the connection between the sealing cap and the bottle body in an embodiment of this application; Figure 16 This is the sixth schematic diagram of the sealing cap in the embodiment of this application.

[0025] Reference numerals: 100, outer cover; 110, anti-loosening structure; 111, mounting position; 112, anti-over-rotation part; 1121, base; 1122, extension; 113, anti-loosening part; 1131, second guide slope; 1132, second gap; 120, observation port; 200. Inner cover; 210. Anti-opening structure; 211. Indicator; 212. Suspension part; 213. Connecting part; 214. Blocking part; 215. First gap; 216. First guide slope; 300. Bottle body; 310. Protruding part. Detailed Implementation

[0026] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0027] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0030] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] Reference Figure 1 , Figure 2 The first aspect of this application provides a sealing cap, including an outer cap 100 and an inner cap 200. The outer cap 100 is provided with an anti-loosening structure 110, and the anti-loosening structure 110 is provided with a mounting position 111. The inner cap 200 is disposed inside the outer cap 100 and can be screwed into a bottle 300 so that at least a portion of the protrusion 310 of the bottle 300 is disposed in the mounting position 111. The inner cap 200 is provided with an anti-opening structure 210. Along the direction in which the inner cap 200 is screwed into the bottle 300, the anti-opening structure 210 is disposed behind the anti-loosening structure 110 and is used to provide an appearance indication for opening the sealing cap.

[0032] Specifically, the outer cover 100 is equipped with an anti-loosening structure 110, and the inner cover 200 is equipped with an anti-opening structure 210. By designing the anti-loosening structure 110 and the anti-opening structure 210 independently, the anti-loosening and anti-opening functions can be prevented from failing simultaneously when the product is impacted. Furthermore, the torque parameters of the anti-loosening structure 110 and the anti-opening structure 210 can be set independently according to usage requirements, eliminating the need to increase the upper cover torque to reduce the risk of loosening, thus reducing the problem of excessive opening torque affecting the user's opening experience. Simultaneously, the inner cover 200 is located inside the outer cover 100. When the inner cover 200 is not open, the anti-opening structure 210 is protected by the outer cover 100, which improves the impact resistance of the anti-opening structure 210 and prevents it from breaking upon impact. Furthermore, when the inner cap 200 is screwed tightly onto the bottle body 300, at least a portion of the protrusion 310 of the bottle body 300 is positioned within the mounting position 111. The anti-loosening structure 110 provides the first layer of protection against loosening, ensuring the sealing cap remains secure during transport. Additionally, along the direction in which the inner cap 200 and bottle body 300 are screwed together, an anti-opening structure 210 is positioned behind the anti-loosening structure 110. When transport vibrations cause the protrusion 310 of the bottle body 300 to detach from the anti-loosening structure 110, the anti-opening structure 210 provides a second layer of protection against loosening, preventing further loosening and sealing failure.

[0033] Reference Figure 3 , Figure 4 , Figure 5 In some embodiments, along the circumferential direction of the inner cap 200, one end of the anti-opening structure 210 is connected to the inner cap 200 to form an indicator 211, while the other end of the anti-opening structure 210 is suspended, meaning it is not connected to the inner cap 200. The indicator 211 can break to indicate that the cap has been opened. Specifically, when the cap is rotated along the opening direction of the inner cap 200 and the bottle body 300, the protrusion 310 of the bottle body 300, after loosening the anti-loosening structure 110, will push the anti-opening structure 210 until the indicator 211 breaks and falls off. The anti-opening structure 210 adopts a destructive, non-recoverable, and visually appealing structural design, improving the visual indication of whether the cap has been opened. Users can determine whether the product has been opened without careful observation, improving the intuitiveness and reliability of the opening indication.

[0034] Reference Figure 1 , Figure 6In some other embodiments, along the circumferential direction of the inner cap 200, one end of the anti-opening structure 210 is connected to the inner cap 200 to form an indicator 211, and the other end of the anti-opening structure 210 is suspended, that is, the other end of the anti-opening structure 210 is not connected to the inner cap 200. The indicator 211 is deformable to indicate that the sealing cap has been opened. Specifically, when the sealing cap is rotated along the opening direction of the inner cap 200 and the bottle body 300, the protrusion 310 of the bottle body 300 will push the anti-opening structure 210 after the anti-loosening structure 110 is released, until the indicator 211 is pulled and deformed, and the indicator 211 cannot be restored after deformation, thus indicating that the sealing cap has been opened, improving the intuitiveness and reliability of the opening indication.

[0035] Reference Figure 1 , Figure 7 , Figure 8 In some other embodiments, both ends of the anti-opening structure 210 are connected to the inner cap 200 along the circumferential direction of the inner cap 200 to form an indicator 211. The indicator 211 can break to indicate that the sealing cap has been opened. Specifically, when the sealing cap is rotated along the opening direction of the inner cap 200 and the bottle body 300, the protrusion 310 of the bottle body 300 will push the anti-opening structure 210 after the anti-loosening structure 110 is released, until the indicator 211 breaks and falls off. Since the indicator 211 cannot be restored after breaking, the visual indication of the sealing cap being opened can be improved.

[0036] Reference Figure 1 , Figure 9 , Figure 10 In some other embodiments, along the circumferential direction of the inner cap 200, the end of the anti-opening structure 210 near the anti-loosening structure 110 is connected to the inner cap 200 to form an indicator 211, and the end of the anti-opening structure 210 away from the anti-loosening structure 110 is connected to the inner cap 200 to form a suspension part 212. When the sealing cap is rotated along the opening direction of the inner cap 200 and the bottle body 300, the protrusion 310 of the bottle body 300 will push the anti-opening structure 210 after loosening the anti-loosening structure 110, until the indicator 211 breaks. At this time, the anti-opening structure 210 deforms and is suspended on the inner cap 200 through the suspension part 212, with a clear visual indication, allowing the user to determine whether the product has been opened without careful observation.

[0037] It should be noted that if the indicator part 211 of the anti-opening structure 210 deforms or breaks during the opening of the sealing cover, it can be achieved by designing the connection strength or connection method between the indicator part 211 and the inner cover 200. This part is prior art, and this application has not made any improvements to this part, so its principle and process will not be described in detail.

[0038] Reference Figure 11 , Figure 12In some embodiments, the anti-opening structure 210 is disposed at the bottom of the inner cover 200, thereby arranging the anti-opening structure 210 along the axial direction of the inner cover 200. Compared with the existing anti-opening structure 210 disposed in the circumferential direction of the sealing cover, the axial arrangement avoids the circumferential area that is easily subject to friction and collision during the installation process. This reduces the impact of external forces such as collision and compression on the anti-opening structure 210 during the installation of the sealing cover, reduces the probability of damage to the anti-opening structure 210 during the installation operation, and thus reduces the functional failure of the anti-opening structure 210 due to installation damage.

[0039] Due to molding and assembly tolerances, the sealing cap and bottle body 300 may not be able to deform or break when the sealing cap is unscrewed. To further avoid this risk, refer to... Figure 11 , Figure 12 In some embodiments, when the inner cap 200 is screwed onto the bottle 300, along the central axis of the inner cap 200, the distance between the side of the anti-opening structure 210 away from the inner cap 200 and the inner cap 200 is L1, and the distance between the side of the protrusion 310 of the bottle 300 away from the inner cap 200 and the inner cap 200 is L2. L1 and L2 satisfy the relationship: L1 > L2, that is, along the central axis of the inner cap 200, the lowest point of the anti-opening structure 210 is lower than the lowest point of the protrusion 310 of the bottle 300, preventing the protrusion 310 of the bottle 300 from sliding over the surface of the anti-opening structure 210, and ensuring that when the sealing cap is unscrewed, the protrusion 310 of the bottle 300 can push the anti-opening structure 210 to an irreversible state, thereby ensuring that the anti-opening structure 210 is deformed or broken.

[0040] Reference Figure 11 , Figure 13In some embodiments, along the central axis of the outer cover 100, the distance between the bottom of the outer cover 100 and the bottom of the inner cover 200 is L3, where L3 and L1 satisfy the relationship: L3 > L1. This allows the outer cover 100 to cover the anti-opening structure 210, thereby protecting the anti-opening structure 210 in the axial direction of the sealing cover. This reduces the impact of external impacts, collisions, and other forces in the axial direction on the anti-opening structure 210 during transportation, storage, or use, and prevents damage to the anti-opening structure 210 due to axial forces. At the same time, since the sealing cover adopts a double-layer design and the anti-opening structure 210 is located at the bottom of the inner cover 200, the inner cover 200 and the outer cover 100 form a surrounding protective space in the circumferential direction. The anti-opening structure 210 is located in the internal protective area of ​​the sealing cover, preventing damage to the anti-opening structure 210 caused by friction, compression, or impact in the circumferential direction. The anti-opening structure 210 is protected in the axial and circumferential directions of the sealing cover, which improves the structural integrity and damage resistance of the anti-opening structure 210, prevents the opening indication function from being lost due to accidental damage to the anti-opening structure 210, and further ensures the overall functional stability and reliability of the sealing cover.

[0041] Reference Figure 2 , Figure 3 , Figure 4 In some embodiments, the anti-opening structure 210 includes a connecting portion 213 and a blocking portion 214 connected to the connecting portion 213. The connecting portion 213 is connected to the inner cap 200, and the blocking portion 214 is set at a certain angle to the connecting portion 213, so that the anti-opening structure 210 bends toward the anti-loosening structure 110, thereby ensuring that when the sealing cap is opened, the indicator portion 211 of the anti-opening structure 210 deforms or breaks. When the sealing cap is unscrewed, the force exerted by the protrusion 310 of the bottle body 300 on the blocking portion 214 can be transmitted along the bending direction of the anti-opening structure 210, ensuring that the anti-opening structure 210 deforms or breaks along a preset path.

[0042] Reference Figure 2 , Figure 3 , Figure 4In some embodiments, a first gap 215 exists between the blocking portion 214 of the anti-opening structure 210 and the inner cap 200. The first gap 215 provides deformation space for the blocking portion 214. During the tightening process of the inner cap 200 and the bottle body 300, the blocking portion 214 can undergo elastic deformation with the help of the first gap 215, allowing the protrusion 310 of the bottle body 300 to pass through. This avoids damage to the anti-opening structure 210 due to excessive force during assembly, ensuring the smoothness and efficiency of the assembly operation. After the protrusion 310 of the bottle body 300 has completely passed through, the elastically deformed blocking portion 214 can reset under its own elasticity, ensuring that the anti-opening structure 210 can provide visual indication for opening the sealing cap during subsequent opening processes.

[0043] Reference Figure 4 , Figure 5 In some embodiments, the anti-opening structure 210 is provided with a first guide slope 216, which guides the protrusion 310 of the bottle body 300. Specifically, during the tightening process of the inner cap 200 and the bottle body 300, the first guide slope 216 can form a contact engagement with the protrusion 310 of the bottle body 300. The guide effect of the slope of the first guide slope 216 disperses the force exerted by the protrusion 310 of the bottle body 300 on the anti-opening structure 210, allowing the protrusion 310 of the bottle body 300 to pass through the anti-opening structure 210 along a preset path, thereby improving assembly efficiency.

[0044] Reference Figure 11 , Figure 14 In some embodiments, the outer cap 100 is provided with an observation port 120, which corresponds to the anti-opening structure 210. The observation port 120 is used to observe whether the anti-opening structure 210 is deformed or falls off, providing a visual channel for checking the status of the anti-opening structure 210. When the sealing cap is opened, the anti-opening structure 210 deforms or falls off under the action of the protrusion 310 of the bottle body 300. At this time, it can be observed through the observation port 120 whether the anti-opening structure 210 has been damaged, improving the recognizability of the sealing cap opening indicator and ensuring that the user can quickly and clearly determine whether the sealing cap has been activated.

[0045] Reference Figures 1 to 3 , Figure 15In some embodiments, the anti-loosening structure 110 includes an anti-over-rotation portion 112 and an anti-loosening portion 113. The anti-over-rotation portion 112 and the anti-loosening portion 113 are spaced apart to form a mounting position 111. The anti-loosening portion 113 is disposed between the anti-over-rotation portion 112 and the anti-opening structure 210. Specifically, when the inner cap 200 is screwed tightly onto the bottle body 300, the protrusion 310 of the bottle body 300 passes sequentially through the anti-opening structure 210 and the anti-loosening portion 113, and at least a portion of it is disposed within the mounting position 111, that is, the protrusion 310 of the bottle body 300 is disposed between the anti-over-rotation portion 112 and the anti-loosening portion 113. The anti-over-tightening part 112 can limit the protrusion 310 of the bottle body 300 to prevent the sealing cap from being over-tightened to the bottle body 300, and avoid structural damage or reduced sealing performance caused by over-tightening of the sealing cap; the anti-loosening part 113 can restrict the loosening movement of the protrusion 310 of the bottle body 300 in the unscrewing direction, so that when the sealing cap is subjected to vibration or impact, the protrusion 310 of the bottle body 300 can be constrained between the anti-loosening part 113 and the anti-over-tightening part 112, preventing the sealing cap from loosening, ensuring stable sealing performance between the sealing cap and the bottle body 300, and reducing product leakage or failure caused by loosening. Furthermore, the minimum distance D1 between the anti-over-rotation part 112 and the anti-loosening part 113 is greater than the maximum width D2 of the protrusion 310 of the bottle body 300, thereby creating a gap between the protrusion 310 of the bottle body 300 and the anti-over-rotation part 112 and the anti-loosening part 113. This facilitates the protrusion 310 of the bottle body 300 being screwed into or out of the mounting position 111, reducing problems such as screwing jamming or difficulty in screwing out caused by dimensional interference between the protrusion 310 of the bottle body 300 and the anti-over-rotation part 112 and the anti-loosening part 113.

[0046] Reference Figure 2 , Figure 3 In some embodiments, the anti-loosening structure 110 is disposed on the inner circumferential side of the outer cap 100, and the anti-over-tightening portion 112 is connected to the bottom of the inner cap 200. This improves the structural strength of the anti-over-tightening portion 112, allowing it to withstand greater forces during the tightening of the sealing cap and the bottle body 300, thereby preventing the sealing cap from being over-tightened. Furthermore, a gap exists between the anti-loosening portion 113 and the inner cap 200, providing elastic deformation space for the anti-loosening portion 113, so that the protrusion 310 of the bottle body 300 can screw into or out of the anti-loosening portion 112 and the anti-over-tightening portion 113 to form a mounting position 111. When the inner cap 200 is screwed onto the bottle body 300, the protrusion 310 of the bottle body 300 contacts the anti-loosening part 113 and causes it to undergo elastic deformation, so that the protrusion 310 of the bottle body 300 can be screwed into the mounting position 111 formed by the anti-over-rotation part 112 and the anti-loosening part 113; when the sealing cap is opened, the protrusion 310 of the bottle body 300 pushes the anti-loosening part 113 to undergo elastic deformation, thereby causing the protrusion 310 of the bottle body 300 to rotate out of the mounting position 111.

[0047] In some embodiments, the inner cap 200 of the sealing cap is screwed onto the bottle body 300, achieving a connection between the sealing cap and the bottle body 300 through the helical locking action of the threads. This ensures assembly stability and resists external forces such as vibration and impact during transportation or use. Furthermore, a sealing ring is provided on the top inner side of the sealing cap, achieving a seal through an interference fit between the sealing ring and the bottle opening of the bottle body 300. Specifically, after assembly, the sealing ring undergoes elastic deformation and tightly conforms to the inner surface of the bottle opening of the bottle body 300, filling the tiny gap between the sealing cap and the bottle opening, blocking leakage channels for gases, liquids, and other media, thus achieving a seal.

[0048] Reference Figure 11 , Figure 16 In some embodiments, the line connecting the side of the anti-opening structure 210 near the anti-loosening structure 110 and the axis of the inner cap 200 is defined as the first line segment OA, and the line connecting the side of the anti-loosening part 113 near the anti-over-rotation part 112 and the axis of the inner cap 200 is defined as the second line segment OB. The angle α between the first line segment OA and the second line segment OB is less than the sealing angle between the inner cap 200 and the bottle body 300. This ensures that the threaded engagement structure of the inner cap 200 and the bottle body 300 remains within the effective sealing range when the sealed cap is subjected to vibration and impact in the transportation environment, avoiding the sealing surface from detaching or insufficient sealing pressure due to relative displacement, thereby improving sealing reliability and reducing the risk of leakage. Meanwhile, even if the protrusion 310 of the bottle body 300 is released from the constraint of the anti-loosening part 113 under the vibration and impact of transportation, the anti-opening structure 210 can still block the protrusion 310 of the bottle body 300, realize the secondary anti-retraction function, limit the sealing cap from further loosening in the unscrewing direction, ensure that the thread fit relationship between the inner cap 200 and the bottle body 300 and the interference seal state between the sealing ring and the bottle mouth are not damaged, thereby ensuring the sealing effect, reducing the sealing failure and leakage problems caused by excessive loosening, and further enhancing the stability and sealing reliability of the sealing cap in harsh transportation environments.

[0049] The sealing angle refers to the maximum allowable offset angle of the sealing cap relative to the bottle body 300 in the unscrewing direction after the sealing cap is assembled with the bottle body 300, while maintaining a seal between the sealing cap and the bottle body 300. It should be noted that the sealing angle is prior art, and this application has not made any improvements to this part, so its principle and process will not be described in detail.

[0050] Reference Figures 1 to 3In some embodiments, the anti-over-spinning part 112 includes a base 1121 and an extension 1122 connected to the base 1121. The base 1121 is connected to the outer cap 100, and the extension 1122 is set at a certain angle to the base 1121, so that the extension 1122 can extend to the screw-in path of the protrusion 310 of the bottle body 300. When the inner cap 200 and the bottle body 300 are screwed to a preset position, the extension 1122 can abut against the protrusion 310 of the bottle body 300, and restrict the protrusion 310 of the bottle body 300 from continuing to move in the screw-in direction through mechanical blocking, so as to avoid problems such as damage to the thread structure, deformation and failure of the sealing ring, or damage to the bottle mouth due to excessive screwing of the sealing cap.

[0051] Reference Figures 1 to 3 In some embodiments, the anti-loosening part 113 is provided with a second guide slope 1131, which guides the protrusion 310 of the bottle body 300. During the tightening operation of the inner cap 200 and the bottle body 300, the second guide slope 1131 can contact the protrusion 310 of the bottle body 300. The guide effect of the slope of the second guide slope 1131 disperses the force of the protrusion 310 of the bottle body 300 on the anti-loosening part 113, so that the protrusion 310 of the bottle body 300 can be screwed into the mounting position 111 formed by the anti-over-rotation part 112 and the anti-loosening part 113 along the preset path. This reduces the risk of damage to the anti-loosening part 113 due to force concentration during assembly, and at the same time reduces the operating force required for tightening assembly, thereby improving assembly efficiency.

[0052] Reference Figures 1 to 3 In some embodiments, a second gap 1132 is provided between the anti-loosening part 113 and the outer cap 100. The second gap 1132 is used to provide deformation space for the anti-loosening part 113. During the tightening process of the inner cap 200 and the bottle body 300, when the protrusion 310 of the bottle body 300 contacts the anti-loosening part 113 under the guidance of the second guide slope 1131, the anti-loosening part 113 can generate elastic deformation by means of the second gap 1132, avoiding structural jamming or force damage caused by insufficient deformation space, and ensuring that the protrusion 310 of the bottle body 300 can be screwed into the mounting position 111 formed by the anti-over-rotation part 112 and the anti-loosening part 113.

[0053] Reference Figure 1In some embodiments, two anti-opening structures 210 and two anti-loosening structures 110 are provided, and the two anti-opening structures 210 and the two anti-loosening structures 110 are symmetrically arranged along the central axis of the sealing cap. Simultaneously, two corresponding protrusions 310 are provided on the bottle body 300, with an included angle of 180° between the two protrusions 310. When the sealing cap is screwed onto the bottle body 300, the two protrusions 310 of the bottle body 300 engage synchronously with the symmetrically arranged anti-opening structures 210 and anti-loosening structures 110, ensuring that the force is evenly distributed circumferentially along the sealing cap during assembly. This avoids structural damage caused by concentrated force on a single structure, ensuring that the protrusions 310 of the bottle body 300 can be screwed into the mounting position 111, thus improving assembly efficiency and accuracy. Furthermore, the two anti-loosening structures 110, through their symmetrical arrangement, form a bidirectional synchronous limiting effect on the two protruding portions 310. This ensures that when the sealing cap is subjected to external forces such as vibration and impact, the limiting force is evenly transmitted circumferentially, preventing the sealing cap from tilting or loosening due to uneven force distribution, further enhancing the anti-loosening effect and ensuring sealing stability. Additionally, the symmetrical cooperation between the two anti-opening structures 210 and the protruding portions 310 ensures that the force applied when the sealing cap is unscrewed is evenly distributed across each anti-opening structure 210, causing them to deform or break synchronously. This avoids inconsistent opening indications caused by excessive or insufficient force on a single anti-opening structure 210, improving the accuracy and intuitiveness of the opening indication. Of course, in actual design, the number of anti-opening structures 210 and anti-loosening structures 110 can be designed according to actual needs.

[0054] A method of using a sealing cap according to a second aspect embodiment of this application, using a sealing cap as described in the first aspect embodiment of this application, includes the following steps: S100, Place the sealing cap on the bottle opening at 300mm of the bottle body.

[0055] In step S100, the sealing cap can be applied to the bottle mouth of the bottle body 300 by manual labor or machine equipment. In actual design, the feeding method of the sealing cap can be designed according to actual needs.

[0056] S200, rotate the sealing cap in the direction of tightening the inner cap 200 and the bottle body 300. The protruding part 310 of the bottle body 300 enters the mounting position 111 of the anti-loosening structure 110 after passing the anti-opening structure 210, so that the protruding part 310 of the bottle body 300 is located between the anti-loosening part 113 and the anti-over-rotation part 112, and the sealing cap is tightened to the bottle body 300.

[0057] In step S200, the inner cap 200 and the bottle body 300 can be tightened manually or by machine. In actual design, the tightening method of the sealing cap can be designed according to actual needs.

[0058] In step S200, after the sealing cap is placed on the bottle mouth of the bottle body 300, the sealing cap is rotated along the tightening direction of the inner cap 200 and the bottle body 300. The protruding part 310 of the bottle body 300 enters the mounting position 111 of the anti-loosening structure 110 after passing through the anti-opening structure 210, thereby achieving the tightening of the sealing cap and the bottle body 300. The operation process is simple and efficient, and the assembly of the sealing cap can be completed without complicated operation steps.

[0059] In step S200, when the protrusion 310 of the bottle body 300 is located between the anti-loosening part 113 and the anti-over-tightening part 112, the anti-over-tightening part 112 can limit the protrusion 310 of the bottle body 300, preventing the sealing cap from being over-tightened to the bottle body 300. The anti-loosening part 113 can restrict the loosening movement of the protrusion 310 of the bottle body 300 in the unscrewing direction, so that when the sealing cap is subjected to vibration or impact, the protrusion 310 of the bottle body 300 can be constrained between the anti-loosening part 113 and the anti-over-tightening part 112, preventing the sealing cap from loosening. At the same time, when the transport vibration causes the protrusion 310 of the bottle body 300 to detach from the anti-loosening structure 110, the anti-opening structure 210 can stop the protrusion 310 of the bottle body 300 from moving back, preventing the sealing cap from failing due to further loosening.

[0060] The instructions for using the sealing cap also include a method for determining if the sealing cap is open, including the following steps: S300, rotate the sealing cap in the direction in which the inner cap 200 and the bottle body 300 are unscrewed.

[0061] The protruding part 310 of S400 and bottle body 300 passes through the anti-loosening structure 110 and the anti-opening structure 210 in sequence.

[0062] In step S400, the protruding part 310 of the bottle body 300 pushes the anti-loosening part 113 of the anti-loosening structure 110, thereby causing the anti-loosening part 113 to undergo elastic deformation, and then causing the protruding part 310 of the bottle body 300 to rotate out of the mounting position 111 formed by the anti-over-rotation part 112 and the anti-loosening part 113.

[0063] In step S400, when the protrusion 310 of the bottle body 300 is rotated out of the mounting position 111, the protrusion 310 of the bottle body 300 pushes the anti-opening structure 210 until the indicator part 211 of the anti-opening structure 210 deforms or breaks and falls off.

[0064] S500: If the anti-opening structure 210 is deformed or falls off through the observation port 120 of the outer cover 100, it is determined that the sealing cover has been opened.

[0065] In step S500, after the sealing cover is opened, the anti-opening structure 210 will be pulled and deformed or fall off. That is, the anti-opening structure 210 adopts a destructive and irreversible visual structure design. The user can observe whether the anti-opening structure 210 is deformed or falls off through the observation port 120, thereby judging whether the product has been opened. This can improve the visual indication of the sealing cover being opened, and the user can judge whether the product has been opened without careful observation, thus improving the intuitiveness and reliability of the opening indication.

[0066] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A sealing cap, characterized in that, include: The outer cover is provided with an anti-loosening structure, and the anti-loosening structure is provided with an installation position; An inner cap is disposed inside the outer cap and can be screwed onto the bottle so that at least a portion of the protrusion of the bottle is disposed within the mounting position. The inner cap is provided with an anti-opening structure. Along the direction in which the inner cap is screwed onto the bottle body, the anti-opening structure is located behind the anti-loosening structure. The anti-opening structure can provide an external indication for opening the sealing cap.

2. The sealing cap according to claim 1, characterized in that, Along the circumferential direction of the inner cover, at least one end of the anti-opening structure is connected to the inner cover to form an indicator portion, which can be deformed or broken to indicate that the sealing cover has been opened.

3. The sealing cap according to claim 1, characterized in that, The anti-opening structure is located at the bottom of the inner cap. When the inner cap is screwed tightly onto the bottle, along the central axis of the inner cap, the distance between the side of the anti-opening structure away from the inner cap and the inner cap is L1, and the distance between the side of the protrusion of the bottle away from the inner cap and the inner cap is L2. L1 and L2 satisfy the relationship: L1 > L2.

4. The sealing cap according to claim 3, characterized in that, Along the central axis of the outer cover, the distance between the bottom of the outer cover and the bottom of the inner cover is L3, where L3 and L1 satisfy the relationship: L3 > L1.

5. The sealing cap according to claim 1, characterized in that, The anti-opening structure includes a connecting part and a blocking part connected to the connecting part. The connecting part is connected to the inner cover, and the blocking part is set at a certain angle to the connecting part so that the anti-opening structure bends toward the anti-loosening structure.

6. The sealing cap according to claim 1, characterized in that, The outer cover is provided with an observation port, which is corresponding to the anti-opening structure. The observation port is used to observe whether the anti-opening structure is deformed or falls off.

7. The sealing cap according to claim 1, characterized in that, The anti-loosening structure includes an anti-over-rotation part and an anti-loosening part, the anti-over-rotation part and the anti-loosening part are spaced apart to form the mounting position, and the anti-loosening part is disposed between the anti-over-rotation part and the anti-opening structure.

8. The sealing cap according to claim 7, characterized in that, The line connecting the side of the anti-opening structure near the anti-loosening structure to the axis of the inner cap is defined as the first line segment, and the line connecting the side of the anti-loosening part near the anti-over-rotation part to the axis of the inner cap is defined as the second line segment. The included angle between the first line segment and the second line segment is smaller than the sealing angle between the inner cap and the bottle body.

9. A method of using a sealing cap, characterized in that, Using the sealing cap as described in any one of claims 1 to 8 includes the following steps: The sealing cap is placed over the mouth of the bottle body; Rotate the sealing cap in the direction in which the inner cap is screwed onto the bottle body. The protruding part of the bottle body passes through the anti-opening structure and enters the installation position of the anti-loosening structure, so that the protruding part of the bottle body is located between the anti-loosening part and the anti-over-rotation part of the anti-loosening structure, and the sealing cap is screwed onto the bottle body in place.

10. The method of using the sealing cap according to claim 9, characterized in that, The method for using the sealing cap also includes a method for determining whether the sealing cap is open, comprising the following steps: Rotate the sealing cap in the direction in which the inner cap is unscrewed from the bottle body; The protruding part of the bottle body passes through the anti-loosening structure and the anti-opening structure in sequence; If the anti-opening structure is observed to be deformed or fall off through the observation port of the outer cover, it can be determined that the sealing cover has been opened.

Images