A hermetically sealed packaging container
Patent Information
- Application Number
- CN202611407759.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-10
- Publication Date
- 2026-11-06
Smart Images
Figure CN123041241A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of packaging, and more specifically, to a sealed packaging container. Background Technology
[0002] In the field of packaging containers, especially cosmetics and personal care products, functional coating or combing components, such as brush heads, sponge heads, flocked surfaces, ball bearings or irregularly shaped applicators, are often integrated at the container outlet to meet specific coating or application needs.
[0003] To prevent leakage or evaporation of the fluid contained within the product when not in use, packaging containers typically need to be sealed. In existing technologies, sealing structures (such as sealing pillars, sealing rings, or inner plugs) on the inner side of the cap are often used to directly press against or embed into the container's discharge channel, achieving a reusable sealing effect through interference fit or end-face contact. However, when the end of the discharge channel is made of soft materials such as integrated brushes or sponge heads, or has an irregular geometric shape, the structural characteristics of the end of the discharge channel prevent the cap from providing a stable, continuous, and sufficiently supportive sealing surface. When the cap directly acts on the discharge channel, it is prone to seal failure due to localized deformation or insufficient interference. Summary of the Invention
[0004] This application provides a sealable packaging container that can be adapted to the end structure of various soft or irregularly shaped discharge channels, achieving a reliable and convenient sealing effect.
[0005] This application provides a sealed packaging container, which adopts the following technical solution:
[0006] A resealable packaging container, comprising:
[0007] Container body;
[0008] A functional head is provided on one side of the opening of the container body, and the functional head is provided with a discharge channel;
[0009] A cover, which can be fitted onto the container body to cover the functional head;
[0010] A guide sleeve is disposed between the container body and the functional head;
[0011] A sealing and opening / closing component is disposed on the guide sleeve. The sealing and opening / closing component includes a connecting channel and a flow-blocking part. The connecting channel is deformable, with one end connected to the discharge channel and the other end connected to the opening of the container body. The flow-blocking part is slidably disposed on the guide sleeve to face or move away from the connecting channel. The flow-blocking part has an initial state and a pressure state. When the cover is separated from the container body, the flow-blocking part is in the initial state, and the connecting channel is normally open. When the cover is assembled onto the container body, the flow-blocking part is in the pressure state, and the flow-blocking part is pushed to move towards the connecting channel until the connecting channel deforms and seals.
[0012] In some technical solutions, the inner wall of the cover is provided with a guide slope. The end of the guide slope near the opening of the cover gradually tilts away from the central axis of the cover. When the cover is assembled onto the container body, the guide slope gradually pushes against the intercepting part, so that the intercepting part switches from the initial state to the pressure state.
[0013] In some technical solutions, the sealing opening and closing component further includes an elastic reset part capable of deformation. The elastic reset part is connected to the flow-blocking part, and the reset part is used to switch the flow-blocking part from the pressurized state to the initial state when the cover is separated from the container body.
[0014] In some technical solutions, the sealing opening and closing component further includes a first end and a second end, the connecting channel is disposed between the first end and the second end, the first end is fixedly connected to the discharge channel, and the second end is fixedly connected to the container body; the elastic reset part is configured in an arc shape, and the two ends of the elastic reset part are fixedly connected to the first end and the second end respectively.
[0015] In some technical solutions, two intercepting parts are provided along the radial direction of the connecting channel, and the two intercepting parts are located on the same straight line. The intercepting parts and the elastic reset parts are provided in a one-to-one correspondence, and the two elastic reset parts are symmetrically arranged along the central axis of the connecting channel.
[0016] In some technical solutions, the intercepting part, the elastic reset part, the first end, the second end, and the connecting channel are integrally formed.
[0017] In some technical solutions, the intercepting part, the elastic reset part, the first end, and the second end are integrally formed, and one end of the connecting channel is snapped into the first end and the other end is bonded to the second end.
[0018] In some technical solutions, the cross-sectional area of the end of the intercepting part closer to the connecting channel is smaller than the cross-sectional area of the end of the intercepting part farther from the connecting channel.
[0019] In some technical solutions, the flow area at the end region of the connection channel is greater than the flow area in the middle region of the connection channel.
[0020] In some technical solutions, the wall thickness of the end region of the connecting channel is greater than the wall thickness of the middle region of the connecting channel.
[0021] As can be seen from the above technical solutions, the embodiments of this application have the following advantages:
[0022] When the packaging container needs to be sealed, the lid is assembled onto the container body. The mechanical force during the assembly of the lid pushes the flow-stopping part from its initial state to a pressurized state, causing the flow-stopping part to move toward the connecting channel. The connecting channel is actively deformed and closed under the external push of the flow-stopping part, thereby blocking the connection between the opening of the container body and the discharge channel to achieve a seal. When the packaging container is in use, the lid is separated from the container body. The lid removes its push against the flow-stopping part, and the flow-stopping part can switch from a pressurized state to its initial state. At this time, the flow-stopping part removes its push against the connecting channel, and the connecting channel relies on its own elasticity to restore conductivity. The connection between the opening of the container body and the discharge channel is also restored, and the product flows from the opening of the container body through the connecting channel to the discharge channel.
[0023] This application shifts the sealing point to the connecting channel and controls the continuity of the connecting channel through the intercepting part, thereby achieving the connection or blockage between the container body opening and the discharge channel. This avoids the shortcomings of existing technologies where the soft or irregularly shaped structures of functional components (such as brushes or sponge heads) cannot provide a support surface, significantly improving the product's sealing reliability. At the same time, the assembly and disassembly of the cover are made the only operation for opening and closing the seal, so consumers do not need to add any additional steps, thus balancing ease of use and sealing effectiveness. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.
[0025] Figure 1 This is an exploded view of the structure of a sealed packaging container disclosed in Embodiment 1 of this application;
[0026] Figure 2 This is a cross-sectional view of the overall structure of a sealed packaging container disclosed in Embodiment 1 of this application;
[0027] Figure 3 This is a cross-sectional view of the structure of a sealed packaging container disclosed in Embodiment 1 of this application, highlighting the separation between the lid and the container body;
[0028] Figure 4 This is a schematic diagram of the structure of a sealing and opening / closing element in a sealed packaging container disclosed in Embodiment 1 of this application;
[0029] Figure 5 This is a cross-sectional view of the structure of a sealing and opening / closing element in a sealed packaging container disclosed in Embodiment 1 of this application;
[0030] Figure 6 This is a cross-sectional view of the sealing and opening / closing element in a sealed packaging container disclosed in Embodiment 2 of this application.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Container body; 11. Discharge section; 12. Assembly wall; 13. Assembly chamber; 2. Functional head; 21. Discharge channel; 3. Cover; 31. Guide slope; 4. Guide sleeve; 41. First connecting end; 42. Second connecting end; 421. Mounting groove; 5. Sealing and opening / closing component; 51. Connecting channel; 511. Flange; 52. Intercepting section; 521. Contact slope; 53. Elastic reset section; 54. First end; 55. Second end; 551. Support guide tube. Detailed Implementation
[0033] The present application will be further described in detail below with reference to the accompanying drawings.
[0034] This application provides a sealable packaging container that can be adapted to the end structure of various soft or irregularly shaped discharge channels, achieving a reliable and convenient sealing effect.
[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all of them. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.
[0036] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0037] Please see Figures 1 to 3 This is one embodiment of a sealed packaging container in this application, comprising a container body 1, a functional head 2, a cap 3, a guide sleeve 4, and a sealing and opening / closing element 5. The container body 1 has an opening, and the interior of the container body 1 is used to contain a fluid-type product, such as an emulsion or serum. The functional head 2 is located on one side of the opening of the container body 1, and the functional head 2 is provided with a discharge channel 21 through which the fluid inside the container body 1 flows out. The functional head 2 integrates various functional coating or combing components, such as a brush head, comb teeth, sponge head, flocked surface, ball bearings, or irregularly shaped applicators, to meet specific coating, combing, or application needs.
[0038] The cover 3 can be assembled onto the container body 1 to cover the functional head 2. The guide sleeve 4 is located between the container body 1 and the functional head 2. The sealing opening and closing component 5 is located inside the guide sleeve 4. The cover 3 and the sealing opening and closing component 5 cooperate to realize the connection or blockage between the opening of the container body 1 and the discharge channel 21. The cover 3 can be easily opened and used, and can also be easily closed to restore the seal.
[0039] Please see Figure 1 and Figure 3 The container body 1 includes a discharge section 11 and an assembly wall 12. The assembly wall 12 surrounds the outer peripheral wall of the discharge section 11. The opening of the container body 1 is configured so that the end of the discharge section 11 faces the guide sleeve 4. An assembly chamber 13 is formed between the discharge section 11 and the assembly wall 12. The inner peripheral wall of the cover 3 is provided with internal threads, and the outer peripheral wall of the assembly wall 12 is provided with external threads. The cover 3 and the container body 1 are threadedly connected. The threaded connection between the cover 3 and the container body 1 provides a stable and controllable axial driving force, which allows the thrust to be accurately transmitted to the sealing opening and closing element 5 during the tightening process of the cover 3. At the same time, the threaded connection method is convenient for users to operate with one hand, conforms to conventional usage habits, and requires no additional learning cost.
[0040] The guide sleeve 4 includes a first connecting end 41 and a second connecting end 42. The functional head 2 extends into the first connecting end 41 and is threadedly connected to it, ensuring the coaxiality and reliable connection between the guide sleeve 4, the functional head 2, and the container body 1. The second connecting end 42 is provided with a mounting groove 421, through which the sealing and opening / closing element 5 is assembled onto the guide sleeve 4. The second connecting end 42 is located within the assembly chamber 13. A locking block is provided on the outer peripheral wall of the guide sleeve 4, and a locking groove is provided on the inner peripheral wall of the assembly wall 12. The second connecting end 42 is locked and fixed to the container body 1, and the locking and fixing of the guide sleeve 4 and the container body 1 forms a stable axial and circumferential limit for the sealing and opening / closing element 5.
[0041] Please see Figure 3 and Figure 4 The sealing and opening / closing component 5 includes a connecting channel 51 and a flow-stopping part 52. The connecting channel 51 is deformable. One end of the connecting channel 51 is connected to the discharge channel 21, and the other end is connected to the opening of the container body 1. The flow-stopping part 52 is slidably disposed on the guide sleeve 4 to face or move away from the connecting channel 51. The flow-stopping part 52 has an initial state and a pressure state. When the cover 3 is separated from the container body 1, the flow-stopping part 52 is in the initial state, and the connecting channel 51 is normally open. When the cover 3 is assembled on the container body 1, the flow-stopping part 52 is in the pressure state. The flow-stopping part 52 is pushed to move toward the connecting channel 51 until the connecting channel 51 deforms and seals.
[0042] Understandably, when the packaging container needs to be sealed, the cap 3 is assembled onto the container body 1. The mechanical force during the assembly of the cap 3 pushes the flow-stopping part 52 from its initial state to a pressurized state, causing the flow-stopping part 52 to move toward the connecting channel 51. The connecting channel 51 undergoes active deformation and closes under the external push of the flow-stopping part 52, thereby blocking the connection between the opening of the container body 1 and the discharge channel 21 to achieve a seal. When the packaging container is in use, the cap 3 is separated from the container body 1. The cap 3 removes its push against the flow-stopping part 52, allowing the flow-stopping part 52 to switch from a pressurized state back to its initial state. At this time, the flow-stopping part 52 removes its push against the connecting channel 51, and the connecting channel 51 relies on its own elasticity. When the flow is restored, the connection between the opening of the container body 1 and the discharge channel 21 is also restored, and the product flows from the opening of the container body 1 to the discharge channel 21 through the connecting channel 51. This application transfers the sealing point to the connecting channel 51, and controls whether the connecting channel 51 is open through the intercepting part 52 to realize the connection or blockage between the opening of the container body 1 and the discharge channel 21. This avoids the defect in the prior art where the soft or irregular structure of functional parts (such as brushes or sponge heads) cannot provide a support surface, and significantly improves the sealing reliability of the product. At the same time, the assembly and disassembly of the cover 3 is the only operation for opening and closing the seal. Consumers do not need to add any additional execution steps, which takes into account both the convenience of use and the sealing effectiveness.
[0043] When the cover 3 is assembled onto the container body 1, in order to switch the flow-blocking part 52 from its initial state to its pressurized state, a guide slope 31 is provided on the inner wall of the cover 3. The end of the guide slope 31 near the opening of the cover 3 gradually tilts away from the central axis of the cover 3. When the cover 3 is assembled onto the container body 1, the guide slope 31 gradually pushes against the flow-blocking part 52, so that the flow-blocking part 52 switches from its initial state to its pressurized state. It can be understood that the guide slope 31 converts the rotational assembly motion of the cover 3 into a continuous and uniform lateral thrust. During the tightening process, the cover 3 uses the guide slope 31 to push the flow-blocking part 52 from its initial state to its pressurized state, ensuring the smoothness and controllability of the movement of the flow-blocking part 52; at the same time, it also ensures that the flow-blocking part 52 can be reliably pushed to the predetermined sealing position each time it is assembled, thereby causing the connecting channel 51 to undergo stable deformation to achieve effective sealing.
[0044] Please continue reading. Figure 3 Furthermore, the end of the intercepting part 52 away from the connecting channel 51 is provided with a contact slope 521 that cooperates with the guide slope 31. The slope of the contact slope 521 is the same as the slope of the guide slope 31. The contact slope 521 cooperates with the guide slope 31 to ensure that the driving process is stable and reliable and to avoid jamming and damage.
[0045] After the cover 3 is separated, to facilitate the switching of the flow-blocking section 52 from the pressurized state back to the initial state, in this embodiment, the sealing opening and closing member 5 also includes an elastic reset section 53 capable of deformation. The elastic reset section 53 is connected to the flow-blocking section 52. The reset section is used to switch the flow-blocking section 52 from the pressurized state to the initial state when the cover 3 is separated from the container body 1. The elastic reset section 53 undergoes elastic deformation to store energy when the flow-blocking section 52 is pressurized, and after the cover 3 is separated, it pulls the flow-blocking section 52 back to the initial relative position through its own elastic restoring force, thereby driving the flow-blocking section 52 from the pressurized state back to the initial state and ensuring reliable conduction of the connection channel 51.
[0046] It is worth mentioning that the elastic reset part 53 uses the restoring force generated by its own deformation to replace manual or additional tool reset operations, ensuring that the connection channel 51 can reliably restore the conductive state after each opening of the cover, without requiring consumers to pay special attention or take any additional actions, further improving the ease of use and smoothness of operation; on the other hand, the elastic reset part 53 provides a stable driving force and stroke control for the reciprocating motion of the intercepting part 52, enhancing the reliability and durability of the sealing system in repeated opening and closing cycles, while also simplifying the user's operation process.
[0047] In some embodiments, the throttling section 52 can switch from the pressurized state back to the initial state, and can also be reset manually or by additional structures, including but not limited to external pin or push rod structures, magnetic structures, and spring slider structures.
[0048] To enhance the installation stability of the connecting channel 51, the sealing opening and closing component 5 also includes a first end 54 and a second end 55. The connecting channel 51 is disposed between the first end 54 and the second end 55. The first end 54 is fixedly connected to the discharge channel 21, and the second end 55 is fixedly connected to the container body 1. Specifically, the first end 54 and the second end 55 are generally tubular. The discharge channel 21 is partially located inside the first end 54, and the first end 54 is fitted onto and fixedly connected to the outer peripheral wall of the discharge channel 21. The outlet 11 is partially located inside the second end 55, and the second end 55 is fitted onto and fixedly connected to the outer peripheral wall of the outlet 11. The central axis of the discharge channel 21, the central axis of the connecting channel 51, and the central axis of the outlet 11 are integrated.
[0049] Please see Figure 4 and Figure 5 In some embodiments, the elastic reset part 53 is configured in an arc shape, with its two ends fixedly connected to the first end 54 and the second end 55, respectively. The intercepting part 52 is disposed in the middle region of the elastic reset part 53. The elastic reset part 53, the first end 54, and the second end 55 form an integrated force-bearing frame. The arc-shaped elastic reset part 53 not only provides a stable and repeatable reset stroke but also achieves a large deformation margin within a limited axial space. It has a simple structure and convenient assembly process, while improving the structural fatigue life and operational reliability of the sealing opening and closing component 5 during repeated opening and closing cycles.
[0050] Specifically, in this embodiment, two intercepting parts 52 are provided along the radial direction of the connecting channel 51, and the two intercepting parts 52 are located on the same straight line. The intercepting parts 52 and the elastic reset parts 53 are provided in a one-to-one correspondence, and the two elastic reset parts 53 are symmetrically arranged along the central axis of the connecting channel 51.
[0051] It is understandable that by symmetrically arranging two intercepting parts 52 in the radial direction of the connecting channel 51, and symmetrically distributing their corresponding elastic reset parts 53 along the central axis of the connecting channel 51, the pressure is applied synchronously on both sides so that the connecting channel 51 is subjected to uniform force when it is closed under pressure. This avoids the possibility of the connecting channel 51 being skewed or excessively deformed locally due to unilateral pushing, making full use of the radial space inside the guide sleeve 4. The structure is compact and has good mechanical balance, further improving the sealing reliability. Secondly, the two symmetrically arranged elastic reset parts 53 can be synchronously reset after the cover 3 is separated, ensuring the consistency of the return of the intercepting parts 52. This prevents the problem of asymmetrical opening of the connecting channel 51 or uneven change of the flow area caused by asynchronous reset, ensuring the smoothness and flow stability of the discharge channel 21 after each opening of the cover.
[0052] In other embodiments, the elastic reset part 53 may also be configured as a corrugated tube structure, a helical spring structure, or a cross elastic frame structure, thereby achieving the effect of pressure-storage and pressure-relief reset.
[0053] Furthermore, in some embodiments, please refer to Figure 5 The cross-sectional area of the end of the intercepting part 52 that is closer to the connecting channel 51 is smaller than the cross-sectional area of the end of the intercepting part 52 that is farther from the connecting channel 51. That is, the intercepting part 52 as a whole has a structure that gradually tapers toward the connecting channel 51. The intercepting part 52 can be a tapered column, a reduced sheet, or a hemispherical shape, etc.
[0054] Understandably, a smaller front end area can generate higher local pressure when pushing against the connecting channel 51, which is beneficial for concentrating pressure under limited driving force, causing the connecting channel 51 to undergo local preferential deformation at the corresponding contact point, thereby achieving reliable sealing with a smaller overall deformation, reducing the requirements for the driving force of the cover 3 and the elasticity of the connecting channel 51 material; on the other hand, the larger cross-sectional area of the rear end ensures that there is sufficient guiding contact surface between the intercepting part 52 and the cover 3, so that the intercepting part 52 maintains a stable motion trajectory during the reciprocating sliding process.
[0055] Please see Figure 5 In some embodiments, the intercepting portion 52, the elastic reset portion 53, the first end 54, the second end 55, and the connecting channel 51 are integrally formed. In this embodiment, in order for the connecting channel 51 to deform under force to achieve a seal and to restore conductivity after the force is released, its material must simultaneously possess elasticity (deformation recovery ability) and flexibility (degree of deformability). Therefore, the material of the connecting channel 51 can be one of thermoplastic elastomer (TPE / TPR), thermoplastic polyurethane elastomer (TPU), low-hardness polypropylene (PP), or polyethylene (PE). Preferably, the material of the connecting channel 51 is low-hardness polypropylene (PP).
[0056] In one optional embodiment of the above-described example, the flow-stopping part 52, the elastic reset part 53, the first end 54, the second end 55, and the connecting channel 51 can be made of the same material. In another optional embodiment, to ensure integrated molding and functional partitioning, a two-color injection molding or overmolding process can be used. In this process, the rigid structures such as the flow-stopping part 52, the first end 54, and the second end 55 are made of hard plastic, while the connecting channel 51 and the elastic reset part 53 are made of soft plastic. The two are fused together into a single part within the mold, thus ensuring both the elastic deformation sealing capability of the connecting channel 51 and maintaining the overall structural strength and assembly accuracy.
[0057] Please see Figure 6In other embodiments, the intercepting portion 52, the elastic reset portion 53, the first end 54, and the second end 55 are integrally formed, with one end of the connecting channel 51 snapped into the first end 54 and the other end bonded to the second end 55. In this embodiment, the connecting channel 51 is made of silicone material, with one end of the connecting channel 51 fitted to the first end 54 and the other end fitted to the second end 55.
[0058] Specifically, the edge of the connecting channel 51 near the functional component is provided with a flange 511 that engages with the first end 54. When the functional component is assembled to the first end 54, it can press the flange 511, further enhancing the installation stability between the connecting channel 51 and the first end 54. The second end 55 is provided with a hollow support guide tube 551. The support guide tube 551 is at least partially located inside the connecting channel 51. The end of the connecting channel 51 near the container body 1 is sleeved on and bonded to the outer peripheral wall of the support guide tube 551. The flowing product inside the container body 1 flows through the guide to the support guide tube 551 at the second end 55, and then enters the discharge channel 21 through the connecting channel 51.
[0059] Furthermore, when the intercepting section 52 pushes against it from both sides, it causes the connecting channel 51 to undergo localized preferential deformation at the corresponding contact point. Please continue reading. Figure 5 In some embodiments, the flow area at the ends of the connecting channel 51 is larger than that in the middle, meaning the connecting channel 51 has a structure that is wide at both ends and narrow in the middle. The smaller flow area in the middle region means that when the flow-blocking part 52 pushes against the connecting channel 51 from both sides, this middle region becomes a stress concentration and deformation priority zone, allowing it to close first with a smaller pushing stroke. After the elastic reset part 53 removes the external force, it can preferentially open using its own elastic restoring force, ensuring rapid recovery of the flow cross-section. Secondly, the larger flow area at the ends ensures smooth flow of fluid in and out of the connecting channel 51 before sealing, avoiding excessive throttling resistance or flow channel blockage due to a narrow channel inlet, thus facilitating smooth fluid product output.
[0060] In some other embodiments, the wall thickness of the end region of the connecting channel 51 is greater than that of the middle region of the connecting channel 51. That is, while maintaining the end connection strength and sealing stability, the middle region forms a relatively thin and flexible section, so that the deformation is mainly concentrated in the predetermined middle region. The thin-walled middle region is more likely to undergo local bending deformation when the intercepting part 52 pushes against it. The deformation position and deformation mode are predictable, which helps to ensure the consistency of the closing position and sealing surface shape of the connecting channel 51 each time it is sealed, thereby improving the sealing reliability and repeatability accuracy, and improving the sensitivity of the sealing response. At the same time, the thicker end region ensures the connection rigidity between the connecting channel 51 and the first end 54 and the second end 55, avoiding fatigue fracture or sealing failure due to deformation stress concentration at the connection root, and effectively extending the service life of the sealing opening and closing part 5.
[0061] The various embodiments in this specification are described in a progressive or parallel manner, with each embodiment focusing on its differences from other embodiments. Similar or undescribed parts between embodiments can be referred to interchangeably. The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A sealed packaging container, characterized in that, include: Container body; A functional head is provided on one side of the opening of the container body, and the functional head is provided with a discharge channel; A cover, which can be fitted onto the container body to cover the functional head; A guide sleeve is disposed between the container body and the functional head; A sealing and opening / closing component is disposed on the guide sleeve. The sealing and opening / closing component includes a connecting channel and a flow-blocking part. The connecting channel is deformable, with one end connected to the discharge channel and the other end connected to the opening of the container body. The flow-blocking part is slidably disposed on the guide sleeve to move toward or away from the connecting channel. The flow-blocking part has an initial state and a pressure state. When the cover is separated from the container body, the flow-blocking part is in the initial state, and the connecting channel is normally open. When the cover is assembled onto the container body, the flow-blocking part is in the pressure state, and the flow-blocking part is pushed to move toward the connecting channel until the connecting channel deforms and seals.
2. The airtight packaging container according to claim 1, characterized in that, The inner wall of the lid is provided with a guide slope. The end of the guide slope near the opening of the lid gradually tilts away from the central axis of the lid. When the lid is assembled onto the container body, the guide slope gradually pushes against the flow-blocking part, so that the flow-blocking part switches from the initial state to the pressure state.
3. The airtight packaging container according to claim 1, characterized in that, The sealing opening and closing component also includes an elastic reset part capable of deformation. The elastic reset part is connected to the flow-blocking part. The reset part is used to switch the flow-blocking part from the pressurized state to the initial state when the cover is separated from the container body.
4. The airtight packaging container according to claim 3, characterized in that, The sealing opening and closing component also includes a first end and a second end, the connecting channel is disposed between the first end and the second end, the first end is fixedly connected to the discharge channel, and the second end is fixedly connected to the container body; the elastic reset part is configured in an arc shape, and the two ends of the elastic reset part are fixedly connected to the first end and the second end respectively.
5. The airtight packaging container according to claim 3, characterized in that, Two flow-blocking parts are provided along the radial direction of the connecting channel, and the two flow-blocking parts are located on the same straight line. The flow-blocking parts and the elastic reset parts are provided in a one-to-one correspondence. The two elastic reset parts are symmetrically arranged along the central axis of the connecting channel.
6. The airtight packaging container according to claim 4, characterized in that, The intercepting part, the elastic reset part, the first end, the second end, and the connecting channel are integrally formed.
7. The airtight packaging container according to claim 4, characterized in that, The intercepting part, the elastic reset part, the first end, and the second end are integrally formed. One end of the connecting channel is snapped into the first end, and the other end is bonded to the second end.
8. The airtight packaging container according to claim 1, characterized in that, The cross-sectional area of the end of the intercepting part closer to the connecting channel is smaller than the cross-sectional area of the end of the intercepting part farther from the connecting channel.
9. The airtight packaging container according to claim 1, characterized in that, The flow area at the end of the connection channel is greater than the flow area in the middle of the connection channel.
10. The airtight packaging container according to claim 1, characterized in that, The wall thickness of the end region of the connecting channel is greater than the wall thickness of the middle region of the connecting channel.