A stack sealing device

Abstract

This utility model relates to the field of tobacco storage technology, and in particular to a tobacco stack sealing device, including a curtain, which comprises a cover film and a bottom film, and a fixing member with a groove along its length; it also includes a snap-fit ​​member, which is pre-embedded in the cover film and snaps into the groove, so that the cover film and the bottom film are pressed tightly between the snap-fit ​​member and the fixing member; this utility model, by pre-embedding the snap-fit ​​member in the cover film, makes it an integral part with the cover film. When the snap-fit ​​member snaps into the groove of the fixing member, it can apply a continuous and uniform linear pressing force to the edges of the bottom film and the cover film, reducing leakage points and achieving higher sealing reliability.

Description

Technical Field

[0001] This utility model relates to the field of tobacco storage technology, and in particular to a tobacco stack sealing device. Background Technology

[0002] In the tobacco industry, tobacco needs to undergo a natural aging process that takes 1-3 years or even longer before it can be used in cigarette production. To provide an ideal and stable environment for this process, a physical barrier is often constructed to isolate the tobacco stacks from the external environment.

[0003] A simple and effective physical barrier is constructed, as disclosed in the utility model patent with authorization publication number CN213307404U. This type of sealed tent, beneficial for regulating oxygen, dehumidifying, and preventing insects in tobacco stacks, includes a plastic cover film and a bottom film. The cover film and bottom film are sealed together to form a hexahedral seal for the tobacco stack. The cover film is equipped with multiple ventilation devices made of insect-proof netting, located on the inner side of the cover film, and its surface is covered by a plastic film.

[0004] Since the purpose of setting up the tent is to seal the tobacco stacks for purposes such as oxygen regulation, dehumidification, and insect prevention, its sealing performance is a key indicator for achieving these functions. To ensure the sealing performance of the tent, a common practice in the industry is to seal the corners of the tent using pressure strips or pressure tubes. For example, invention patent CN102871213A discloses a sealing device and method for tobacco tents. The sealing device for tobacco tents includes pressure strips and fixing strips. The pressure strips and fixing strips are provided with interlocking structures. The interlocking structures are used to press the bottom film and the cover film of the tent between the pressure strips and the fixing strips, and the pressure strips and fixing strips are clamped and fixed by clamps.

[0005] This type of tent, sealed with pressure strips and fixing strips, has the advantage of being removable, allowing for reuse, but it still has limitations. Because the pressure strips and fixing strips rely on discrete external clamps to provide locking force, it is difficult to maintain a uniform and stable pressing pressure over a continuous length, which can still lead to air leakage and affect the sealing effect. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides a smokestack sealing device, in which the snap-fit ​​component is pre-embedded in the cover membrane to form an integrated structure. Through the overall snap-fit, continuous and uniform sealing pressure is achieved, thereby improving the sealing effect.

[0007] The technical solution to the problem of this utility model is to provide a smokestack sealing device, including a tent, the tent including a cover film and a bottom film, and a fixing member, the fixing member having a groove along its length; and a snap-fit ​​member, the snap-fit ​​member being embedded in the cover film and snap-fitted to the groove, so that the cover film and the bottom film are pressed between the snap-fit ​​member and the fixing member.

[0008] Furthermore, the tobacco stack sealing device provided by this utility model may also have the following features: the groove is an arc-shaped groove, the snap-fit ​​member is a cylindrical structure, and the cylindrical surface of the snap-fit ​​member is snap-fitted and connected to the groove.

[0009] Furthermore, the smokestack sealing device provided by this utility model may also have the following features: the fixing member includes a base, and the base is provided with the groove; the fixing member also includes two first wall plates, the two first wall plates are respectively provided on both sides of the groove, and the snap-fit ​​member abuts against the first wall plates; the horizontal plane where the highest point of the first wall plate is located is not lower than the horizontal plane where the central axis of the snap-fit ​​member is located.

[0010] Furthermore, the smokestack sealing device provided by this utility model may also have the following feature: it further includes a protective component, the protective component including a cover plate, the cover plate being located above the snap-fit ​​component.

[0011] Furthermore, the smokestack sealing device provided by this utility model may also have the following feature: the protective component further includes two second wall plates respectively disposed on both sides of the cover plate, and the second wall plates are connected to the first wall plate.

[0012] Furthermore, the smokestack sealing device provided by this utility model may also have the following feature: the inner wall of the second wall panel is connected to the outer wall of the first wall panel to form a sealing area for sealing the snap-fit ​​member between the cover plate and the base.

[0013] Furthermore, the smokestack sealing device provided by this utility model may also have the following features: at least one mounting part is provided on the inner wall of the second wall panel, and a fixing part is provided on the outer wall of the first wall panel that corresponds to the number and position of the mounting part, and the mounting part and the fixing part are detachably connected.

[0014] Furthermore, the smokestack sealing device provided by this utility model may also have the following features: the mounting part is a fitting groove, the length direction of the fitting groove extends along the length direction of the second wall plate; the fixing part is a fitting block, the fitting block is snapped into the fitting groove.

[0015] Furthermore, the smokestack sealing device provided by this utility model may also have the following feature: the cover plate is provided with an arc-shaped avoidance groove for avoiding the snap-fit ​​component.

[0016] Furthermore, the smokestack sealing device provided by this utility model may also have the following feature: an elastic sealing strip is provided between the clearance groove and the snap-fit ​​member.

[0017] The beneficial effects of this utility model are as follows: 1. In this application, the snap-fit ​​element is pre-embedded within the cover membrane, forming an integral component with it. When the snap-fit ​​element engages with the groove of the fixing element, it can apply a continuous and uniform linear clamping force to the edges of the base membrane and the cover membrane, reducing leakage points and achieving higher sealing reliability.

[0018] 2. In this application, by setting up a protective and fixing component to form a sealed protective barrier, the protective snap-fit ​​component is protected from external forces (inflation, human touch, etc.) that could cause it to pop out of the groove and cause the seal to fail, thereby further improving the sealing effectiveness. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0020] Figure 1 This is a front view of the present invention; Figure 2 This is a structural schematic diagram of the snap-fit ​​component and the fastener of this utility model; Figure 3 This is a structural schematic diagram of the protective component, snap-fit ​​component, and fastener of this utility model; Figure 4 This is a partial schematic diagram of the protective component of this utility model; Figure 5 This is a partial schematic diagram of the fastener of this utility model.

[0021] In the picture: 1. Cover film; 2. Bottom film; 3. Clip-on component; 4. Fixing component; 41. Groove; 42. First wall panel; 43. Fixing part; 5. Protective component; 51. Cover plate; 52. Second wall panel; 53. Mounting part; 54. Clearance groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] This utility model provides a tobacco stack sealing device, the specific structure of which is as follows: like Figure 1 and Figure 2 As shown, the smokestack sealing device includes a canopy, which comprises a cover membrane 1 and a bottom membrane 2. The device also includes a fixing member 4, which has a groove 41 along its length. Furthermore, the device includes a snap-fit ​​member 3, which is embedded within the cover membrane 1 and snaps into the groove 41, pressing the cover membrane 1 and the bottom membrane 2 tightly between the snap-fit ​​member 3 and the fixing member 4. Specifically, the cover membrane 1 is preferably a double-layer membrane, with the snap-fit ​​member 3 positioned between the two layers for pre-embedding. In use, because the snap-fit ​​member 3 is embedded within the cover membrane 1, it forms an integral component with the cover membrane 1. When snapped into the groove 41 of the fixing member 4, it applies a continuous and uniform linear pressing force to the edges of the bottom membrane 2 and the cover membrane 1, reducing leakage points and achieving higher sealing reliability.

[0024] In some embodiments, the groove 41 is an arc-shaped groove, and the snap-fit ​​member 3 is a cylindrical structure. The cylindrical surface of the snap-fit ​​member 3 is snap-fitted to the groove 41. Compared with the point contact of other groove types, the curved surface of the cylindrical surface and the arc-shaped groove can form a continuous and uniform linear contact, making the distribution of the clamping force more uniform.

[0025] In some embodiments, to prevent the snap-fit ​​3 from coming off, the fixing member 4 includes a base with a groove 41 on the base; the fixing member 4 also includes two first wall plates 42, which are respectively disposed on both sides of the groove 41, and the snap-fit ​​3 abuts against the first wall plates 42; the horizontal plane where the highest point of the first wall plate 42 is located is not lower than the horizontal plane where the central axis of the snap-fit ​​3 is located.

[0026] In some embodiments, such as Figure 3 and Figure 4 As shown, the tobacco stack sealing device also includes a protective component 5, which includes a cover plate 51. The cover plate 51 is located above the snap-fit ​​component 3. In use, the cover plate 51 is used to prevent the snap-fit ​​component 3 from being ejected from the groove 41 due to external forces (inflation, human touch, etc.), which would cause the seal to fail.

[0027] In some embodiments, such as Figures 3 to 5As shown, the protective component 5 also includes two second wall plates 52 respectively disposed on both sides of the cover plate 51. The second wall plates 52 are connected to the first wall plate 42 to fix the cover plate 51 of the protective component 5.

[0028] As a further improvement of the above embodiment, the inner wall of the second wall panel 52 is connected to the outer wall of the first wall panel 42 to form a sealing area for sealing the snap fastener 3 between the cover plate 51 and the base, blocking gas or liquid from seeping in along the edge of the snap fastener 3, further improving the connection stability between the snap fastener 3 and the fixing member 4, thereby ensuring the sealing performance.

[0029] As a further improvement of the above embodiment, the inner wall of the second wall panel 52 is provided with at least one mounting part 53, and the outer wall of the first wall panel 42 is provided with a fixing part 43 corresponding to the number and position of the mounting part 53. The mounting part 53 and the fixing part 43 are detachably connected, which facilitates the disassembly and assembly of the protective member 5 and the fixing member 4, and ensures that the tent can be reused.

[0030] As a further improvement of the above embodiment, the mounting part 53 is a fitting groove, and the length direction of the fitting groove extends along the length direction of the second wall plate 52; the fixing part 43 is a fitting block, and the fitting block is snapped into the fitting groove to achieve linear guiding snapping and ensure that the second wall plate 52 and the first wall plate 42 do not shift laterally during the connection process.

[0031] In some embodiments, the cover plate 51 is provided with an arc-shaped clearance groove 54 for avoiding interference with the latching member 3.

[0032] As a further improvement to the above embodiment, an elastic sealing strip is provided between the clearance groove 54 and the snap-fit ​​member 3. The elastic sealing strip is preferably elastic rubber. When the cover plate 51 is installed in place, the sealing strip is compressed and elastically fills the assembly gap, further improving the sealing performance.

[0033] The above-described contents can be implemented individually or in combination in various ways, and all such variations are within the protection scope of this utility model.

[0034] In the description of this invention, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0035] In the description of this invention, it should also be noted that the terms "center," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for 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 invention. In the description of this invention, unless otherwise stated, "a number" means two or more.

[0036] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A smokestack sealing device, comprising a curtain, said curtain comprising a cover film (1) and a bottom film (2), characterized in that, It also includes a fixing member (4), which has a groove (41) along its length; it also includes a snap-fit ​​member (3), which is embedded in the cover film (1) and snap-fitted to the groove (41) so that the cover film (1) and the bottom film (2) are pressed between the snap-fit ​​member (3) and the fixing member (4).

2. The tobacco stack sealing device according to claim 1, characterized in that, The groove (41) is an arc-shaped groove, and the snap-fit ​​part (3) is a cylindrical structure. The cylindrical surface of the snap-fit ​​part (3) is snap-fitted to the groove (41).

3. The tobacco stack sealing device according to claim 2, characterized in that, The fixing member (4) includes a base, on which the groove (41) is provided; the fixing member (4) also includes two first wall plates (42), which are respectively located on both sides of the groove (41), and the snap-fit ​​member (3) abuts against the first wall plates (42); the horizontal plane where the highest point of the first wall plate (42) is located is not lower than the horizontal plane where the central axis of the snap-fit ​​member (3) is located.

4. The tobacco stack sealing device according to claim 3, characterized in that, It also includes a protective element (5), which includes a cover plate (51) located above the snap-fit ​​element (3).

5. The tobacco stack sealing device according to claim 4, characterized in that, The protective component (5) also includes two second wall panels (52) respectively disposed on both sides of the cover plate (51), and the second wall panels (52) are connected to the first wall panel (42).

6. The tobacco stack sealing device according to claim 5, characterized in that, The inner wall of the second wall panel (52) is connected to the outer wall of the first wall panel (42) to form a sealing area between the cover plate (51) and the base for sealing the snap-fit ​​member (3).

7. The tobacco stack sealing device according to claim 6, characterized in that, The inner wall of the second wall panel (52) is provided with at least one mounting part (53), and the outer wall of the first wall panel (42) is provided with a fixing part (43) that corresponds to the number and position of the mounting part (53). The mounting part (53) and the fixing part (43) are detachably connected.

8. The tobacco stack sealing device according to claim 7, characterized in that, The mounting part (53) is a fitting groove, and the length direction of the fitting groove extends along the length direction of the second wall panel (52); the fixing part (43) is a fitting block, and the fitting block is snapped into the fitting groove.

9. The tobacco stack sealing device according to claim 4, characterized in that, The cover plate (51) is provided with an arc-shaped clearance groove (54) for avoiding the snap-fit ​​member (3).

10. The tobacco stack sealing device according to claim 9, characterized in that, An elastic sealing strip is provided between the clearance groove (54) and the snap-fit ​​member (3).

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