Sealing assembly structure

Abstract

A sealing assembly structure comprises a sealing body, a sealing piece and a sliding block. The sealing body is provided with a cavity for containing the sealing piece and a packaging opening of the packaging bag, and a first opening communicated with the cavity is formed in the position, corresponding to the sealing piece, of the sealing body. The sliding block is slidably connected with the sealing body. The sliding block is provided with a second opening corresponding to the first opening and communicated with the cavity, and is provided with a slit leading to one end of the sliding block from the second opening along the sliding direction; one end of the sealing element is positioned in the cavity, and the other end of the sealing element sequentially passes through the first opening and the second opening and is positioned outside the cavity; a packaging opening of the packaging bag surrounds the periphery of the other end of the sealing piece; the sliding block slides, the two sides of the packaging opening of the packaging bag move in the slit, and the other end of the sealing piece and the packaging opening of the packaging bag enter or leave the cavity sequentially through the second opening and the first opening. By the adoption of the technical scheme, a good sealing assembly structural part is improved, sealing and unsealing operation is completed through the simple sliding action of the sliding block, and the packaging and unsealing efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of packaging sealing, and particularly to a sealing component structure. Background Art

[0002] As a carrier for packaging various items, packaging bags are widely used in many fields. In actual production, most product packaging bags are not equipped with a seal structure that can be opened and closed multiple times at the initial design stage. To achieve continuous production and improve production efficiency, heat sealing technology is usually used to perform a one-time sealing treatment on the packaging bag. The principle of heat sealing technology is to use a heating device to heat the plastic film at the opening of the package until it melts, and then apply a certain pressure to promote the bonding of the film, thereby achieving the sealing effect. However, when the product is not used up at one time, in order to prevent the remaining product in the bag from getting damp and deteriorating, it is necessary to perform a secondary seal on the opening of the package.

[0003] In the prior art, for the secondary sealing of packaging bags, mainly methods such as a clamping plate type sealing component structure, a clamping cylinder type sealing component structure, and a zipper type sealing component structure are used to seal the opening of the package.

[0004] The clamping plate-shaped sealing component structure (such as a food packaging bag seal clip with the patent application publication number CN 103287690 A, a seal clip for a packaging bag with the patent authorization announcement number CN 201099424 Y, etc.), its working principle is to rely on two clamping plates moving towards each other to clamp the opening of the package, and use a buckle to connect the clamping plates to achieve the sealing of the opening of the package. However, this type of sealing component structure has obvious drawbacks: under the action of external force, the clamping plates are very easy to loosen, resulting in gaps at the sealed part, greatly reducing the sealing performance. Moreover, it has strict requirements for the material and thickness of the packaging bag. For packaging bags with a relatively soft texture or too thin thickness, the sealing component structure is difficult to provide sufficient clamping force, resulting in an insecure seal. In addition, the size of the clamping plate type sealing component structure is fixed and cannot be adjusted adaptively according to the actual situation of the packaging opening.

[0005] The zipper type sealing component structure (such as an environmentally friendly composite packaging plastic sealing component structure with the patent authorization announcement number CN 208761229 U, etc.), mainly realizes the sealing of the opening of the environmentally friendly composite packaging by reciprocally sliding the zipper head on the main body of the sealing component structure (including sealing chain one and sealing chain two). However, this method has specific requirements for the shape of the packaging opening. If the shape of the packaging opening is irregular, effective sealing cannot be achieved.

[0006] The clamp-type sealing assembly structure (such as a secondary sealing clamp for packaging bags with patent authorization announcement number CN 205470488 U, a sealing rod and packaging device with application publication number CN 102442469 A, etc.) is mainly composed of an outer clamp and an inner clamp rod. The outer clamp is provided with a slit. When sealing, the inner clamp rod must be placed at the packaging opening first, and then the packaging opening must be fixed around the inner clamp rod by folding, curling, etc., and then the packaging bag and the inner clamp rod are inserted from one end of the outer clamp together, so that the outer clamp and the inner clamp rod can clamp the packaging bag in the slit together. This method is laborious to operate and is extremely inconvenient. Summary of the invention

[0007] In view of the above problems, the present application provides a sealing assembly structure to solve the problems of poor sealing performance and laborious operation of the existing sealing assembly structure.

[0008] To achieve the above object, the inventor provides a sealing assembly structure, which includes a sealing body, a sealing member and a sliding block;

[0009] The sealing body has a cavity for accommodating the sealing element and the packaging opening of the packaging bag, and a first opening communicating with the cavity is provided corresponding to the sealing element;

[0010] The slider is slidably connected to the sealing body; a second opening communicating with the cavity is provided corresponding to the first opening, and a slit leading from the second opening to one end of the slider is provided along the sliding direction; a separation portion extending into the bottom of the cavity is provided at the end of the slider away from the slit;

[0011] The sealing member is strip-shaped, one end of which is located in the cavity, and the other end of which is located outside the cavity through the first opening and the second opening in sequence;

[0012] The packaging opening of the packaging bag surrounds the outer periphery of the sealing member; the sliding block is used, and both sides of the packaging opening of the packaging bag are located in the slit, and the other end of the sealing member and the packaging opening of the packaging bag enter or leave the cavity through the second opening and the first opening in turn.

[0013] Furthermore, the cavity runs through both ends of the sealing body.

[0014] Furthermore, the width of the first opening is smaller than the width of the cavity, and the sealing member is formed of an elastic material; the slider is slid to squeeze the other end of the sealing member and the packaging opening of the packaging bag into or out of the cavity through the first opening.

[0015] Furthermore, the sealing member is in an arc shape corresponding to the first opening.

[0016] Furthermore, the slider is provided with a channel penetrating two ends of the slider along the sliding direction, and the sealing body is slidably connected in the channel.

[0017] Furthermore, the slit is located at one side of the second opening.

[0018] Furthermore, the separation portion is provided with a guide surface extending from the second opening to the bottom of the cavity for the first opening.

[0019] Furthermore, one end of the slider is provided with a flared structure on a side away from the slit.

[0020] Furthermore, the sliding block is provided with a guide plate at the second opening, and the guide plate extends from one end of the second opening in a direction away from the sealing body.

[0021] Furthermore, it also includes a limit block, which is connected to both ends of the sealing body.

[0022] Different from the prior art, the above technical solution uses a sliding slider to make the packaging opening and the seal gradually enter or leave the cavity under the action of the slider; when the packaging opening and the seal of the packaging bag enter the cavity, the cavity and the seal squeeze the two sides of the packaging opening so that the two sides of the packaging opening can fit tightly together, thereby forming a good sealing state to prevent the contents from getting damp, deteriorating or leaking; at the same time, the entire sealing and unsealing operations are completed through a simple sliding slider action, which greatly reduces the difficulty of use and thus significantly improves the efficiency of packaging and unsealing.

[0023] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and shall not be considered as limiting the present application.

[0025] Figure 1 It is a structural schematic diagram of the sealing assembly structure described in the specific implementation method;

[0026] Figure 2 This is a schematic diagram of the structure of a sealing assembly sealing a packaging bag according to a specific implementation method;

[0027] Figure 3 It is a structural schematic diagram of the slider described in the specific implementation method;

[0028] Figure 4 A side view of the slider according to the specific embodiment;

[0029] Figures 5 - 7Schematic diagram of the sealing process state of the sealing component structure described in the specific implementation manner;

[0030] Figure 8 Schematic diagram of the structure of the sealing component structure described in the specific implementation manner.

[0031] The reference numerals involved in the above-mentioned drawings are explained as follows:

[0032] 10. Sealing main body;

[0033] 101. Cavity; 102. First opening;

[0034] 20. Slide block;

[0035] 201. Channel;

[0036] 202. Second opening;

[0037] 203. Slit;

[0038] 204. Separation part;

[0039] 2041. Guide surface;

[0040] 205. Flared structure;

[0041] 206. Guide plate;

[0042] 30. Sealing element;

[0043] 40. Limit block;

[0044] 50. Packaging bag;

[0045] 501. Packaging opening. Specific implementation manner

[0046] To illustrate in detail the possible application scenarios, technical principles, specific implementable solutions, achievable objectives and effects of the present application, the following is a detailed description in conjunction with the specific examples listed and with reference to the drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and therefore are only examples and cannot be used to limit the protection scope of the present application.

[0047] Referring to "embodiment" in this article means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0048] Unless otherwise defined, the meanings of technical terms used herein are the same as those commonly understood by those skilled in the technical field to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0049] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " herein generally represents an "or" logical relationship between the associated objects before and after.

[0050] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary-secondary or order relationship, etc. between these entities or operations.

[0051] Without further limitation, in this application, the open-ended expressions such as "comprising", "including", "having" or other similar ones used in a statement are intended to cover non-exclusive inclusion. These expressions do not exclude that there may be additional elements in the process, method or product including the said elements, so that the process, method or product including a series of elements may not only include those defined elements, but also include other elements not explicitly listed, or also include elements inherent to this process, method or product.

[0052] The same as the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding" are understood not to include the number itself; expressions such as "above", "below", "within" are understood to include the number itself. In addition, in the description of the embodiments of this application, the meaning of "a plurality of" is two or more (including two), and similar expressions related to "many" are understood in the same way, such as "multiple groups", "multiple times", etc., unless otherwise specifically defined.

[0053] In the description of the embodiments of this application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the specific embodiment or the drawing, and is only for the convenience of describing the specific embodiments of this application or for the reader's understanding, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of this application.

[0054] Unless otherwise clearly specified or limited, in the description of the embodiments of the present application, terms such as "installation", "connection", "linkage", "fixation", and "setting" shall be understood in a broad sense. For example, the "connection" may be a fixed connection, a detachable connection, or an integral setting; it may be directly connected or indirectly connected through an intermediate medium; it may be the relationship of two components combined together, or the interaction relationship of two components, or the communication inside two structures. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0055] See Figures 1 - 8 As shown, a sealing component structure includes a sealing main body 10, a sealing member 30, and a slider 20; a cavity 101 is provided in the sealing main body 10 for accommodating the sealing member 30 and the packaging opening 501 of the packaging bag 50; the packaging opening 501 of the packaging bag 50 is surrounded around the outer periphery of the sealing member 30, and by sliding the slider 20, the packaging opening 501 and the sealing member 30 gradually enter or leave the cavity 101 under the action of the slider 20; when the packaging opening 501 of the packaging bag 50 and the sealing member 30 enter the cavity 101, the cavity 101 and the sealing member 30 squeeze both sides of the packaging opening 501 so that both sides of the packaging opening 501 can be closely attached together, thereby forming a good sealing state to prevent the contents from getting damp, deteriorating, or leaking; at the same time, the entire sealing and unsealing operations are completed through a simple action of sliding the slider 20, greatly reducing the usage difficulty, and thus significantly improving the sealing and unsealing efficiency.

[0056] The above sealing component structure can seal the packaging openings 501 of packaging bags 50 for various products, including but not limited to the following: such as packaging tea, coffee, etc., which can preserve the aroma of tea and coffee and prevent the intrusion of oxidation and moisture; such as packaging food, medicine, food such as meat (dried meat, ham, etc.), seafood (fish, shrimp, shellfish, etc.), dairy products (milk powder, cheese, etc.), vegetables, fruits, pastries, and candies, which can extend their shelf life, prevent oxidation and the growth of microorganisms, and maintain the quality and taste of the food; medicines and herbs can maintain their active ingredients and prevent the intrusion of oxidation and moisture; of course, it can also be industrial components to protect them from oxidation and corrosion and ensure their integrity and quality during transportation and storage.

[0057] See Figures 1 - 4 As shown, the following specifically introduces an implementation manner of a sealing component structure provided by the present invention, which includes a sealing main body 10, a sealing member 30, and a slider 20;

[0058] The sealing body 10 has a cavity 101 for accommodating the seal 30 and the packaging opening 501 of the packaging bag 50, and a first opening 102 communicating with the cavity 101 is provided corresponding to the seal 30;

[0059] The slider 20 is slidably connected to the sealing body 10; a second opening 202 communicating with the cavity 101 is provided corresponding to the first opening 102, and a slit 203 leading from the second opening 202 to one end of the slider 20 is provided along the sliding direction. A separating portion 204 extending into the bottom of the cavity is provided at the end of the slider 20 away from the slit 203;

[0060] The seal 30 is strip-shaped, one end of which is located in the cavity 101, and the other end is located outside the cavity 101 through the first opening 102 and the second opening 202 in sequence;

[0061] The packaging opening 501 of the packaging bag 50 surrounds the outer periphery of the seal 30; by sliding the slider 20, both sides of the packaging opening 501 of the packaging bag 50 are located in the slit 203, and the other end of the seal 30 and the packaging opening 501 of the packaging bag 50 enter or leave the cavity 101 through the second opening 202 and the first opening 102 in sequence.

[0062] The cavity 101 of the above-mentioned sealing body 10 is used to accommodate the seal 30 and the packaging opening 501 of the packaging bag 50. Among them, the lengths of the cavity 101 and the seal 30 can be determined according to the length of the packaging opening 501 of the packaging bag 50, and the cavity 101 can also penetrate through both ends of the sealing body 10 (such as Figure 1As shown, the seal 30 is set according to the length of the cavity 101. The cavity 101 penetrates through both ends of the sealing body 10 and can flexibly adapt to the packaging openings 501 of different lengths of the packaging bags 50. When facing the packaging openings 501 of different lengths of the packaging bags 50, the sealing body 10 and the seal 30 can be cut according to the length of the packaging openings 501 of the packaging bags 50 to ensure that all parts of the packaging openings 501 of the packaging bags 50 can be effectively sealed, so that the sealing component structure can adapt to the packaging openings 501 of various different lengths of the packaging bags 50, greatly improving its versatility and applicability. The shape of the cavity 101 is not limited in this embodiment, as long as the packaging opening 501 of the packaging bag 50 surrounds the outer periphery of the seal 30, and when the packaging opening 501 of the packaging bag 50 and the seal 30 enter the cavity 101 together, the cavity 101 and the seal 30 squeeze both sides of the packaging opening 501 so that both sides of the packaging opening 501 can be closely attached together to form a good sealing state. Preferably, the shape of the cavity 101 is adapted to the shape of the seal 30, and the adapted shape can make the cooperation between the seal 30 and the cavity 101 closer, and the force distribution is more uniform when squeezing the packaging opening 501 of the packaging bag 50. For example, if the seal 30 is a square column, the cavity 101 is correspondingly set as a square column. Then, during the squeezing process, the pressures received by both sides of the packaging opening 501 of the packaging bag 50 will be evenly distributed on the circumference, avoiding the situation of excessive or too small local pressure, so that both sides of the packaging opening 501 can be more closely attached together to form a good sealing state, effectively preventing the contents from being affected by moisture, deteriorating or leaking; especially when subjected to external forces (such as bumps during transportation or squeezing during storage), the adapted shape can enable the seal 30 to better withstand the pressure and evenly transfer the force to the cavity 101, avoiding structural deformation or damage caused by inappropriate shape, thereby ensuring the reliability of the sealing function. The shape of the packaging opening 501 of the packaging bag 50 is not limited in this embodiment either. It can be any shape, as long as when sealing, the packaging opening 501 of the packaging bag 50 is completely located inside the cavity 101 or both sides of the packaging opening 501 are located inside the cavity 101, and the cavity 101 and the seal 30 squeeze both sides of the packaging opening 501 so that both sides of the packaging opening 501 can be closely attached together to form a good sealing state.

[0063] The above-mentioned seal 30 and the packaging opening 501 of the packaging bag 50 enter the cavity 101 through the first opening 102 of the sealing body 10. The shape of the first opening 102 can be set corresponding to the shape of the seal 30, which can minimize the resistance during entry and ensure the smooth entry of the seal 30 and the packaging opening 501 of the packaging bag 50. The minimum size of the first opening 102 should ensure that the seal 30 and the packaging opening 501 of the packaging bag 50 surrounding its outer periphery can pass through smoothly. In some embodiments not shown, the width of the first opening 102 is equal to the width of the cavity 101; the seal 30 and the packaging opening 501 of the packaging bag 50 surrounding its outer periphery form an interference fit state with the cavity 101 through the first opening 102. In some embodiments not shown, the width of the first opening 102 is equal to the width of the cavity 101, and elastic edges are provided on both side walls of the first opening 102. When the seal 30 and the packaging opening 501 of the packaging bag 50 surrounding its outer periphery pass through the first opening 102, the elastic edges undergo elastic deformation. When the seal 30 and the packaging opening 501 of the packaging bag 50 surrounding its outer periphery enter the cavity 101, the elastic edges return to their normal state, and the elastic edges on both side walls of the first opening 102 will form a support for the seal 30 and the packaging opening 501 of the packaging bag 50 surrounding its outer periphery, effectively preventing the seal 30 and the packaging opening 501 of the packaging bag 50 from slipping out of the cavity 101 after insertion. See Figure 1 As shown, in some embodiments, to effectively prevent the seal 30 and the packaging opening 501 of the packaging bag 50 surrounding its outer periphery from accidentally slipping out of the cavity 101 during the sealing process, the width of the first opening 102 is smaller than the width of the cavity 101, that is, the combined size of the seal 30 and the packaging opening 501 of the packaging bag 50 is slightly larger than the width of the first opening 102. When the seal 30 and the packaging opening 501 of the packaging bag 50 surrounding its outer periphery pass through the first opening 102, the sealing body 10 and / or the seal 30 undergo elastic deformation. When the seal 30 and the packaging opening 501 of the packaging bag 50 surrounding its outer periphery enter the cavity 101, the sealing body 10 and / or the seal 30 return to their normal state, and the side walls of the cavity 101 on both sides of the first opening 102 will form a tight clamping support for the seal 30 and the packaging opening 501 of the packaging bag 50 surrounding its outer periphery, effectively preventing the seal 30 and the packaging opening 501 of the packaging bag 50 from slipping out of the cavity 101 after insertion, ensuring its stable position in the cavity 101, and with the advancement of subsequent sealing operations, such as the sliding of the slider 20 and other actions, this firm support is continuously maintained throughout the sealing process, thus laying a solid foundation for achieving the tight fitting of both sides of the packaging opening 501 of the packaging bag 50 and a good sealing effect, and strongly guaranteeing the sealing performance and reliability of the packaging.

[0064] In some embodiments, the elasticity of the sealing body 10 and the slider 20 is less than that of the seal 30. The relatively small elasticity of the sealing body 10 and the slider 20 facilitates positioning and sliding during operation, and it is not difficult to control the position due to excessive elasticity, ensuring that the sealing action is completed accurately and efficiently. At the same time, it provides a certain rigid support during sealing, ensuring that the seal 30 is more likely to deform under the acting force of the sliding slider 20. During the sealing process, it can more easily deform and enter the cavity 101 through the first opening 102. After entering the cavity 101, it partially or fully resumes its shape, enabling it to better adapt to the packaging openings 501 of packaging bags 50 with different shapes and surface conditions, fitting more closely within the cavity 101, filling the small gaps between the cavity 101 and the seal 30, so that the cavity 101 and the seal 30 effectively squeeze both sides of the packaging opening 501, enabling both sides of the packaging opening 501 to fit closely together to form a good sealing state. Preferably, the elasticity of the seal 30, the slider 20, and the sealing body 10 decreases in sequence. The decreasing elasticity of the slider 20 and the sealing body 10 provides a rigid support, which helps to stably squeeze the seal 30 during the sealing process, reducing local stress concentration and damage caused by elastic mismatch, enabling it to better play the sealing role and ensuring the reliability and stability of the sealing. The sealing body 10 and the slider 20 can be formed from rubber, silicone, thermoplastic elastomer, thermoplastic vulcanizate, or polyvinyl chloride material, metal materials (such as aluminum alloy, stainless steel, etc.). The seal 30 can be formed from rubber, silicone, thermoplastic elastomer, thermoplastic vulcanizate, or polyvinyl chloride material, etc.

[0065] See Figure 1 As shown, in order to enable the seal 30 and the packaging opening 501 of the packaging bag 50 to enter the inner cavity more smoothly, the seal 30 can be arc-shaped corresponding to the first opening 102. When the arc-shaped end of the seal 30 enters the first opening 102, the contact area between the arc surface and the edge of the first opening 102 is relatively small, and the contact method is line contact or approximately line contact, greatly reducing the friction force, which is beneficial for the seal 30 and the packaging opening 501 of the packaging bag 50 surrounding its outer periphery to quickly enter the inner cavity, avoiding the edge of the packaging opening 501 of the packaging bag 50 being squeezed and deformed or jammed due to excessive local pressure, making the entry process smoother and reducing the thrust required for the slider 20. At the same time, when the arc-shaped seal 30 enters the first opening 102, due to the guiding effect of its shape, it can find the entry direction more quickly, enabling the seal 30 and the packaging opening 501 of the packaging bag 50 to quickly enter the inner cavity for sealing operation.

[0066] The above-mentioned slider 20 is slidably connected to the sealing body 10 to complete the sealing and unsealing operations by sliding the slider 20. In some embodiments not shown, guide rails are provided on the side of the sealing body 10, and the slider 20 is provided with positioning blocks corresponding to the guide rails, and the positioning blocks are slidably connected to the guide rails so that the slider 20 is slidably connected to the sealing body 10. Refer to Figures 1 - 4 As shown, in some embodiments, the slider 20 is provided with a channel 201 running through both ends of the slider 20 along the sliding direction, and the sealing body 10 is slidably connected within the channel 201 so that the slider 20 is slidably connected to the sealing body 10. The second opening 202 of the slider 20 provides a clear movement trajectory for the other end of the seal 30 and the packaging opening 501 of the packaging bag 50, guiding the seal 30 and the packaging opening 501 of the packaging bag 50 to enter or leave the cavity 101. The sliding of the slider 20 drives the movement of the other end of the seal 30, and the second opening 202 cooperates with the movement of the slider 20 to provide an acting point for the slider 20, enabling the slider 20 to effectively push the other end of the seal 30 into the cavity 101. The shape of the second opening 202 can be set corresponding to the shape of the first opening 102, which can minimize the resistance during entry and ensure that the seal 30 and the packaging opening 501 of the packaging bag 50 can smoothly enter or leave the cavity 101 through the second opening 202. The minimum size of the second opening 202 should ensure that the seal 30 and the packaging opening 501 of the packaging bag 50 surrounding its outer periphery can pass through smoothly; specifically, the width of the second opening 202 can be greater than or equal to the width of the first opening 102.

[0067] The above-mentioned slit 203 provides a precise movement path for both sides of the packaging opening 501 of the packaging bag 50, ensuring that during the sliding of the slider 20, both sides of the packaging opening 501 of the packaging bag 50 move smoothly in the slit 203 under the guidance of the seal 30, enabling the other end of the seal 30 to smoothly drive the packaging opening 501 of the packaging bag 50 to pass through the second opening 202 and the first opening 102 in sequence to enter or leave the cavity 101; the width of the slit 203 can be determined according to the thickness of the packaging bag 50 and can be greater than the thickness of the packaging bag 50. For example, for a common plastic packaging bag 50 with a thickness of 1-2 mm, the width of the slit 203 can be set to 2-3 mm to ensure that both sides of the packaging opening 501 of the packaging bag 50 can move freely within the slit 203. The slit 203 is arranged along the sliding direction and leads from the second opening 202 to one end of the slider 20, and it can be located at any position between (including both sides of) the two sides of the second opening 202. Refer to Figure 1 and Figure 4As shown, it is preferred that the slit 203 is located on one side of the second opening 202. The slit 203 being located on one side of the second opening 202 makes the structure of the slider 20 relatively concentrated and stable. Compared with the slit 203 being located in the middle or other positions, the unilateral arrangement can reduce the weakening of the overall structural strength of the slider 20 due to the opening of the slit 203. When bearing the pressure generated by the sliding of the slider 20 and applying an extrusion force to the packaging opening 501 of the packaging bag 50, it is less likely to deform, ensuring the structural stability and durability of the slider 20 and the entire sealing device.

[0068] The above-mentioned separation part 204 is located at one end of the slider 20 away from the slit 203 and extends into the bottom of the cavity 101, and directly acts on the joint of the seal 30 and the packaging opening 501 and the bottom of the cavity 101. Ensure that during the unsealing operation, the separation part 204 can provide a stable and continuous acting force. As the slider 20 slides, the separation part 204 will play its role, separating the seal 30 and the packaging opening 501 of the packaging bag 50 surrounding the seal 30 from the bottom of the cavity 101, so that the separated seal 30 and the packaging opening 501 of the packaging bag 50 surrounding the seal 30 pass through the second opening 202 and the first opening 102 in sequence and leave the cavity 101. Effectively avoid the situation that the seal 30 or the packaging opening 501 remains in the bottom of the cavity during unsealing, ensure the smooth progress of the unsealing process, improve the stability and repeatability of the unsealing operation, and enable the unsealing operation to be completed quickly and efficiently.

[0069] To avoid the seal 30 and the packaging opening 501 being blocked in the cavity 101 or the first opening 102 during the unsealing process, so that the unsealing operation can be completed quickly and efficiently. It is also possible to provide a guiding surface 2041 extending from the second opening towards the bottom of the cavity for the separation part to the first opening. That is, the guiding surface 2041 extends from the other end of the second opening 202 into the bottom of the cavity 101. The guiding surface 2041 provides a smooth and stable path for the seal 30 and the packaging opening 501 of the packaging bag 50 to enter or leave the cavity 101; specifically, the surface of the separation part 204 corresponding to the seal 30 can be an inclined surface or a curved surface recessed towards the cavity 101. It is preferred that the separation part 204 and the slider 20 are integrally formed from the same material by processes such as injection molding and casting, so that the separation part 204 and the slider 20 are firmly connected, there are no connection gaps, and the overall strength is high.

[0070] See Figure 3 and Figure 4As shown, in some embodiments, the slider 20 has a flared structure 205 on one side away from the slit 203. In the process of introducing the seal 30 and the package opening 501 into the slit 203, the flared structure 205 can prevent them from colliding or rubbing with other parts of the slider 20, thereby protecting the seal 30, the package opening 501 and the slider 20 from damage. The flared structure 205 can be a gradual expansion type or a curved expansion type. Taking the gradual expansion type as an example, the flared structure 205 is an inclined end surface of the slider 20 on the side away from the slit 203.

[0071] See also Figures 5 - 7 As shown, the packaging opening 501 of the packaging bag 50 surrounds the outer periphery of the sealing member 30, which means that the sealing member 30 is taken as the center, and the packaging opening 501 is partially surrounded by the outer periphery of the sealing member 30 along the length direction of the sealing member 30, and the edge of the packaging opening 501 is closely attached to the outer periphery of the sealing member 30. By sliding the slider 20, the two sides of the packaging opening 501 will start to move along the slit 203 of the slider 20, and the sealing member 30 and the packaging opening 501 of the packaging bag 50 can enter or leave the cavity 101 through the second opening 202 and the first opening 102, thereby realizing the sealing and unsealing operations of the packaging opening 501 of the packaging bag 50. Specifically, when sealing is required, as the slider 20 continues to slide, the package opening 501 and the other end of the seal 30 gradually enter the cavity 101 under the action of the slider 20; at this time, the cavity 101 and the seal 30 work together to strongly squeeze the two sides of the package opening 501. Under the pressure applied by the two, the two sides of the package opening 501 can fit tightly together, thereby forming a good sealing state. When unsealing is required, the operation is also convenient. Just slide the slider 20 in the opposite direction, and the two sides of the package opening 501 will move in the opposite direction in the slit 203 of the slider 20, so that the package opening 501 and the other end of the seal 30 can leave the cavity 101 through the slider 20.

[0072] See also Figure 3 and Figure 4 As shown, in some embodiments, the slider 20 is provided with a guide plate 206 at the second opening 202, and the guide plate 206 extends from one end of the second opening 202 in a direction away from the sealing body 10. The guide plate 206 provides a smooth and stable path for the sealing member 30 and the packaging opening 501 of the packaging bag 50 to enter or leave the cavity 101; specifically, the surface of the guide plate 206 corresponding to the sealing member 30 can be an inclined surface or a curved surface that is concave toward the sealing body 10 (cavity 101). Preferably, the guide plate 206 and the slider 20 are integrally formed of the same material through injection molding, casting and other processes, so that the guide plate 206 and the slider 20 are firmly connected, there is no connection gap, and the overall strength is high.

[0073] It should be noted that the guide plate 206 and the flaring structure 205 can exist simultaneously, and they cooperate with each other to greatly improve the smoothness and stability of the packaging opening 501 of the seal 30 and the packaging bag 50 when entering and exiting the cavity 101.

[0074] In order to prevent the slider 20 from slipping out of the sealing body 10, a limiting structure can be provided at both ends of the sealing body 10. In some embodiments not shown, the two ends of the sealing body 10 are subjected to hot melt treatment to fully melt the material surfaces at both ends of the sealing body 10, and then a certain pressure is quickly applied to both ends of the sealing body 10 so that the projections of the end faces of both ends of the sealing body 10 in the sliding direction completely or partially cover the slider 20, and the pressure is maintained until the material cools and solidifies to limit the sliding of the slider 20 between the two ends of the sealing body 10 and prevent the slider 20 from slipping out of the sealing body 10. See Figure 8 As shown, in some embodiments, the above-mentioned sealing assembly structure further includes a limiting block 40, and the limiting block 40 is connected to both ends of the sealing body 10. The limiting block 40 defines a clear boundary for the movement of the slider 20, plays a positioning role, and prevents it from slipping out of the sealing body 10. When the slider 20 slides on the sealing body 10 for sealing and unsealing operations, the limiting block 40 can prevent the slider 20 from continuing to move when it reaches the extreme positions at both ends, avoiding the accidental detachment of the slider 20 from the sealing body 10 and ensuring the safety of the operation. There are various implementation manners for connecting the limiting block 40 to both ends of the sealing body 10, including but not limited to slot clamping, threaded connection, snap connection, etc. Taking slot clamping as an example, the limiting block 40 is provided with slots matching the shapes of both ends of the sealing body 10, and both ends of the sealing body 10 are respectively inserted into the slots to realize the connection between the limiting block 40 and the sealing body 10, and through the tight fit of the slots, the stable connection between the limiting block 40 and the sealing body 10 is realized.

[0075] Finally, it should be noted that although the above-mentioned embodiments have been described in the text and drawings of the specification of the present application, the patent protection scope of the present application cannot be limited thereby. Any technical solutions obtained by equivalent structure or equivalent process substitution or modification based on the essential concept of the present application, using the content recorded in the text and drawings of the specification of the present application, and any technical solutions directly or indirectly implementing the above-mentioned embodiments in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A sealing component structure, characterized in that, It includes a sealing body, a seal and a slider; The sealing body has a cavity for accommodating the seal and the packaging opening of the packaging bag, and a first opening communicating with the cavity is provided corresponding to the seal; The slider is slidably connected to the sealing body; A second opening communicating with the cavity is provided corresponding to the first opening, and a slit leading from the second opening to one end of the slider is provided along the sliding direction; a separating portion extending into the bottom of the cavity is provided at one end of the slider away from the slit; The seal is strip-shaped, one end of which is located inside the cavity, and the other end is located outside the cavity through the first opening and the second opening in sequence; The packaging opening of the packaging bag surrounds the outer periphery of the seal; When the slider is slid, both sides of the packaging opening of the packaging bag are located in the slit, and the other end of the seal and the packaging opening of the packaging bag enter or leave the cavity through the second opening and the first opening in sequence.

2. The sealed component structure according to claim 1, wherein The cavity penetrates through both ends of the sealing body.

3. The sealing component structure according to claim 1, characterized in that, The width of the first opening is smaller than the width of the cavity, and the seal is formed of an elastic material; the slider is slid to squeeze the other end of the seal and the packaging opening of the packaging bag to enter or leave the cavity through the first opening.

4. The sealing component structure according to claim 1, wherein, The seal is arc-shaped corresponding to the first opening.

5. The sealing component structure according to claim 1, wherein The slider is provided with a channel penetrating through both ends of the slider along the sliding direction, and the sealing body is slidably connected in the channel.

6. The sealing component structure according to claim 1, wherein, The slit is located on one side of the second opening.

7. The sealing component structure according to claim 1, wherein, The separating portion is provided with a guiding surface extending from the second opening to the bottom of the cavity for the first opening.

8. The sealing component structure according to claim 6, wherein, One end of the slider has a flared structure on the side away from the slit.

9. The sealing component structure according to claim 1, wherein, The slider is provided with a guiding plate at the second opening, and the guiding plate extends from one end of the second opening in a direction away from the sealing body.

10. The sealing component structure according to claim 1, characterized in that, It further includes a limiting block, and the limiting block is connected to both ends of the sealing body.

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