A tobacco leaf sealing device

By designing a tobacco sealing device, an air pump is used to move the sealing element and extract gas from inside the carton, solving the problem of mold growth caused by poor tobacco sealing and achieving a highly efficient sealing effect.

CN224393446UActive Publication Date: 2026-06-23CHINA TOBACCO GUANGXI IND

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA TOBACCO GUANGXI IND
Filing Date
2025-08-21
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing tobacco cartons have poor sealing, making the tobacco prone to mold.

Method used

Design a tobacco leaf sealing device, including a base, a lower film sleeve, an upper film sleeve, a mounting component, a sealing component, an elastic component, and an air pump. The air pump drives the sealing component to move, so that the vent hole is connected to the air pump, and the gas between the lower film sleeve and the upper film sleeve is extracted to achieve a seal. After the air pump is removed, the sealing component rebounds to block the vent hole from communicating with the outside.

Benefits of technology

It improves the sealing effect of tobacco and prevents tobacco from getting moldy.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224393446U_ABST
    Figure CN224393446U_ABST
Patent Text Reader

Abstract

The utility model relates to tobacco processing technical field especially relates to a tobacco leaf sealing device. Wherein, the lower membrane cover is arranged in the base, the upper membrane cover is connected in the lower membrane cover, tobacco is placed in the accommodating cavity formed by the lower membrane cover and the upper membrane cover, the mounting piece is installed in the lower membrane cover, the mounting piece is provided with the mounting hole and the air hole, the both ends of air hole are communicated in the accommodating cavity and the mounting hole, the sealing piece is slidably arranged in the hole wall of mounting hole, the air pump can be inserted into the mounting hole from one end of mounting hole and push the sealing piece to move to the other end of mounting hole, so that the air hole can be communicated with the air pump, the elastic piece is configured to always have the tendency of pushing the sealing piece to move to one end of mounting hole. The air pump is communicated with the air hole by pushing the sealing piece to move and exhausts, extracts the gas between the lower membrane cover and the upper membrane cover to seal the carton, after the air pump is separated, the sealing piece rebounds, blocks the communication of the air hole with the outside, improves the sealing effect, avoids the mildew of tobacco.
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Description

Technical Field

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

[0002] Tobacco is a plant belonging to the genus Nicotiana in the family Solanaceae. It is an annual or short-lived perennial herb. Tobacco leaves are relatively large, ovate or lanceolate in shape. Its leaves are the main raw material for the tobacco industry and can be made into various tobacco products such as cigarettes and cigars.

[0003] After tobacco is dried and processed, it needs to be placed in cardboard boxes, stacked, and then stored in a warehouse. However, the sealing of tobacco cardboard boxes is usually just a simple sealing with plastic film before stacking, which results in poor sealing and causes the tobacco to mold.

[0004] Therefore, there is an urgent need for a tobacco leaf sealing device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a tobacco leaf sealing device that can improve the sealing effect and prevent tobacco from becoming moldy.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A tobacco leaf sealing device includes: a base, a lower film sleeve, an upper film sleeve, a mounting member, a sealing member, an elastic member, and an air pump. The lower film sleeve is disposed on the base, and the upper film sleeve is snapped onto the lower film sleeve to place tobacco within a receiving cavity formed by the lower and upper film sleeves. The mounting member is installed on the lower film sleeve and has a mounting hole and a vent hole. The two ends of the vent hole communicate with the receiving cavity and the mounting hole. The sealing member is slidably disposed on the wall of the mounting hole. The air pump can be inserted into the mounting hole from one end and push the sealing member to the other end of the mounting hole so that the vent hole can communicate with the air pump. The elastic member is configured to always have a tendency to push the sealing member to the end of the mounting hole.

[0008] As a preferred technical solution of the above-mentioned tobacco leaf sealing device, the tobacco leaf sealing device further includes a plurality of limiting members, which are spaced apart along the circumferential direction of the mounting hole on the hole wall of the mounting hole, and the sealing member can abut against the limiting members.

[0009] As a preferred technical solution of the above-mentioned tobacco leaf sealing device, the wall of the mounting hole is provided with a number of retaining strips, and the air pump is provided with a number of retaining plates. The number of retaining strips and the number of retaining plates are arranged in a one-to-one correspondence, and the retaining strips can engage with the retaining plates.

[0010] As a preferred technical solution of the above-mentioned tobacco leaf sealing device, the tobacco leaf sealing device further includes a limiting rod, which passes through the sealing member, and the elastic member can be sleeved on one end of the limiting rod. The air pump includes a pump body and an air nozzle, the air nozzle is connected to the pump body, and the air nozzle can be sleeved on the other end of the limiting rod.

[0011] As a preferred technical solution of the above-mentioned tobacco leaf sealing device, the air pump further includes a connector, which is disposed between the pump body and the air nozzle, and a plurality of the clamping plates are disposed circumferentially at intervals on the outer periphery of the connector.

[0012] As a preferred technical solution of the above-mentioned tobacco leaf sealing device, the tobacco leaf sealing device further includes a plurality of support rods, which are arranged circumferentially on the base and on the outer ring of the lower film sleeve.

[0013] As a preferred technical solution of the above-mentioned tobacco leaf sealing device, the tobacco leaf sealing device further includes a plurality of extension plates, and the plurality of extension plates are arranged in a one-to-one correspondence with a plurality of support rods, and the support rods are installed on the extension plates.

[0014] As a preferred technical solution of the above-mentioned tobacco leaf sealing device, the tobacco leaf sealing device further includes several reinforcing members, and the reinforcing members are connected between two adjacent support rods.

[0015] As a preferred technical solution of the above-mentioned tobacco leaf sealing device, the tobacco leaf sealing device further includes a plurality of lifting columns, which are circumferentially spaced on the bottom wall of the base.

[0016] As a preferred technical solution of the above-mentioned tobacco leaf sealing device, the elastic element is a compression spring.

[0017] The beneficial effects of this utility model are:

[0018] This utility model provides a tobacco leaf sealing device. The tobacco leaf sealing device includes: a base, a lower film sleeve, an upper film sleeve, a mounting component, a sealing component, an elastic component, and an air pump. The lower film sleeve is disposed on the base, and the upper film sleeve is snapped onto the lower film sleeve to place tobacco in the receiving cavity formed by the lower and upper film sleeves. The mounting component is installed on the lower film sleeve and has a mounting hole and a vent hole. The two ends of the vent hole are connected to the receiving cavity and the mounting hole. The sealing component is slidably disposed on the wall of the mounting hole. The air pump can be inserted into the mounting hole from one end and push the sealing component to the other end of the mounting hole so that the vent hole can communicate with the air pump. The elastic component is configured to always have a tendency to push the sealing component to the end of the mounting hole. Compared to existing technologies, the air pump moves the sealing element, connecting the air pump to the vent. By pumping air, the gas between the lower film sleeve and the upper film cover is extracted, thus sealing the carton. After the air pump is removed, the sealing element rebounds, blocking the vent from the outside, improving the sealing effect and preventing tobacco from getting moldy. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0020] Figure 1 This is a first structural schematic diagram of the tobacco leaf sealing device provided in this embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the second structure of the tobacco sealing device provided in this embodiment of the utility model;

[0022] Figure 3 for Figure 2 A magnified view of part A in the image;

[0023] Figure 4 This is a schematic diagram of the structure of the air pump provided in this embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the mounting component provided in an embodiment of this utility model;

[0025] Figure 6 This is a schematic diagram of the third structure of the tobacco leaf sealing device provided in this embodiment of the utility model.

[0026] In the picture:

[0027] 1. Base; 2. Lower membrane sleeve; 3. Upper membrane sleeve; 4. Mounting component; 5. Vent hole; 6. Sealing component; 7. Elastic component; 8. Locking strip; 9. Limiting component; 10. Limiting rod; 11. Air nozzle; 12. Connector; 13. Clamping plate; 14. Pump body; 15. Extension plate; 16. Support rod; 17. Connecting plate; 18. Reinforcing component; 19. Through hole; 20. Lifting column. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] like Figures 1 to 6As shown, this utility model provides a tobacco leaf sealing device. The tobacco leaf sealing device includes: a base 1, a lower film sleeve 2, an upper film sleeve 3, a mounting component 4, a sealing component 6, an elastic component 7, and an air pump.

[0033] Specifically, the lower film sleeve 2 is disposed on the base 1, and the upper film sleeve 3 is snapped onto the lower film sleeve 2 to place the tobacco in the receiving cavity formed by the lower film sleeve 2 and the upper film sleeve 3. The mounting member 4 is installed on the lower film sleeve 2 and has a mounting hole and a vent hole 5. Both ends of the vent hole 5 connect the receiving cavity and the mounting hole. The sealing member 6 is slidably disposed on the wall of the mounting hole. An air pump can be inserted into the mounting hole from one end and push the sealing member 6 to the other end of the mounting hole, so that the vent hole 5 can communicate with the air pump. The elastic member 7 is configured to always have a tendency to push the sealing member 6 towards the end of the mounting hole. Compared with the prior art, the air pump, by pushing the sealing member 6 to move, connects the air pump with the vent hole 5. By pumping air, the gas between the lower film sleeve 2 and the upper film sleeve is extracted to achieve the work of sealing the carton. After the air pump is removed, the sealing member 6 rebounds, blocking the communication between the vent hole 5 and the outside, improving the sealing effect and preventing the tobacco from becoming moldy.

[0034] Optionally, the tobacco sealing device further includes a plurality of limiting members 9, which are spaced apart circumferentially on the wall of the mounting hole, and the sealing member 6 can abut against the limiting members 9. Specifically, the limiting members 9 are close to the air pump end, and the sealing member 6 can slide left and right relative to the vent hole 5. When the sealing member 6 slides to the left side of the vent hole 5, the vent hole 5 is connected to the air pump, and the air pump can draw gas between the lower membrane sleeve 2 and the upper membrane cover. When the sealing member 6 slides to the right side of the vent hole 5, the sealing member 6 can block the communication between the vent hole 5 and the outside, and at the same time, the sealing member 6 abuts against the limiting members 9 to prevent the sealing member 6 from sliding out of the mounting hole.

[0035] Optionally, the mounting hole wall is provided with a number of retaining strips 8, and the air pump is provided with a number of retaining plates 13. The retaining strips 8 and retaining plates 13 are arranged in a one-to-one correspondence, and the retaining strips 8 can engage with the retaining plates 13. Specifically, the number of retaining strips 8 is set to three, and the three retaining strips 8 are symmetrically and evenly distributed on the wall of the mounting hole with respect to the center of the left end surface of the mounting part 4; the number of retaining plates 13 is set to three, and the three retaining plates 13 are symmetrically and evenly distributed on the surface with respect to the center of the front of the air pump. The engagement of the retaining strips 8 and retaining plates 13 can make the air pump and the mounting part 4 securely connected.

[0036] Optionally, the tobacco sealing device further includes a limiting rod 10, which passes through the sealing element 6. An elastic element 7 can be fitted onto one end of the limiting rod 10. The air pump includes a pump body 14 and an air nozzle 11, which is connected to the pump body 14 and can be fitted onto the other end of the limiting rod 10. Specifically, the limiting rod 10 passes through the center of the sealing element 6, with both ends of the limiting rod 10 exposed on both sides of the sealing element 6. The elastic element 7 is fitted onto one end of the limiting rod 10, and the air nozzle 11 is concentric with the limiting rod 10, fitted onto the other end of the limiting rod 10. This allows the sealing element 6 to be subjected to balanced forces and provides a guiding function, preventing the sealing element 6 from jamming. Further, the elastic element 7 is a compression spring.

[0037] Optionally, the air pump also includes a connector 12, which is disposed between the pump body 14 and the air nozzle 11. Several clamping plates 13 are disposed circumferentially around the outer periphery of the connector 12, which can improve the stability of the connection between the pump body 14 and the air nozzle 11.

[0038] Optionally, the tobacco sealing device further includes a plurality of support rods 16, which are arranged circumferentially on the base 1 and on the outer ring of the lower film sleeve 2. Specifically, the tobacco sealing device has four support rods 16, which are respectively installed at the four corners of the base 1 to support the carton.

[0039] Furthermore, the tobacco sealing device also includes several extension plates 15, each corresponding to a number of support rods 16, with the support rods 16 mounted on the extension plates 15. Specifically, there are four extension plates 15, arranged in pairs symmetrically and evenly at the left and right ends of the base 1. The top of each extension plate 15 is fixedly connected to a support rod 16, and a connecting plate 17 is inserted into the top of each support rod 16. A through hole 19 is provided at the bottom of each extension plate 15, and the connecting plate 17 is concentric with the through hole 19. The diameter of the connecting plate 17 is smaller than the diameter of the through hole 19, allowing the connecting plate 17 to pass through the through hole 19 and abut against the ground, thus improving the stability of the connecting plate 17. This allows for the stacking of cartons while preventing the cartons from being squeezed together during stacking, which could damage the lower film sleeve 2 and the upper film cover, and expose the tobacco directly to the air, affecting the quality of the tobacco.

[0040] Optionally, the tobacco sealing device further includes several reinforcing members 18, with the reinforcing members 18 connecting adjacent support rods 16. Specifically, there are two reinforcing members 18, respectively located on both sides of the base 1 along its length, with both ends of the reinforcing members 18 connected to the support rods 16.

[0041] Optionally, the tobacco sealing device further includes a plurality of lifting columns 20, which are circumferentially spaced on the bottom wall of the base 1. Specifically, four lifting columns 20 are provided, which are symmetrically and evenly distributed on the bottom surface of the base 1 about the center of the base 1, and can adjust the height of the tobacco sealing device.

[0042] The tobacco sealing device provided by this utility model is used as follows: When sealing tobacco stacks, firstly, the stacked cardboard boxes are placed inside the lower film sleeve 2, and then the upper film cover is snapped onto the surface of the lower film sleeve 2, so that the surface of the cardboard box is completely sealed; the air nozzle 11 is fitted onto the surface of the limiting rod 10 and pressed to the left, causing the sealing element 6 to slide on the inner wall of the mounting part 4. The sealing element 6 moves to the left end of the vent hole 5, and at the same time, the clamping plate 13 is completely inserted into the interior of the mounting part 4. The air pump is rotated so that the clamping plate 13 is located at the left end of the clamping strip 8. The pressure on the air pump is released. Under the force of the elastic element 7, the clamping plate 13 engages with the surface of the clamping strip 8, connecting the vent 5 with the air nozzle 11. The air pump is then activated, drawing gas from between the lower film sleeve 2 and the upper film cover to seal the carton and prevent the tobacco from becoming moldy. After the tobacco inside the carton is sealed, the connecting plate 17 is fitted into the through hole 19, allowing the carton to be stacked. This prevents the cartons from being squeezed together during stacking, which could damage the lower film sleeve 2 and the upper film cover, leaving the tobacco directly exposed to the air and affecting its quality.

[0043] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A tobacco leaf sealing device, characterized in that, include: The device comprises a base (1), a lower film sleeve (2), an upper film sleeve (3), a mounting member (4), a sealing member (6), an elastic member (7), and an air pump. The lower film sleeve (2) is disposed on the base (1), and the upper film sleeve (3) is snapped onto the lower film sleeve (2) to place tobacco in the receiving cavity formed by the lower film sleeve (2) and the upper film sleeve (3). The mounting member (4) is installed on the lower film sleeve (2) and is provided with a mounting hole and a vent hole (5). The two ends of the vent hole (5) are connected to the receiving cavity and the mounting hole. The sealing member (6) is slidably disposed on the wall of the mounting hole. The air pump can be inserted into the mounting hole from one end of the mounting hole and push the sealing member (6) to the other end of the mounting hole so that the vent hole (5) can communicate with the air pump. The elastic member (7) is configured to always have a tendency to push the sealing member (6) to one end of the mounting hole.

2. The tobacco leaf sealing device according to claim 1, characterized in that, The tobacco sealing device further includes a plurality of limiting members (9), which are spaced apart along the circumference of the mounting hole on the hole wall, and the sealing member (6) can abut against the limiting members (9).

3. The tobacco leaf sealing device according to claim 1, characterized in that, The mounting hole has several locking strips (8) on its wall and the air pump has several locking plates (13). The locking strips (8) and the locking plates (13) are arranged in a one-to-one correspondence and the locking strips (8) can be engaged with the locking plates (13).

4. A tobacco leaf sealing device according to claim 3, characterized in that, The tobacco sealing device further includes a limiting rod (10), which passes through the sealing member (6). The elastic member (7) can be sleeved on one end of the limiting rod (10). The air pump includes a pump body (14) and an air nozzle (11). The air nozzle (11) is connected to the pump body (14), and the air nozzle (11) can be sleeved on the other end of the limiting rod (10).

5. A tobacco leaf sealing device according to claim 4, characterized in that, The air pump also includes a connector (12), which is disposed between the pump body (14) and the air nozzle (11), and a plurality of the clamping plates (13) are disposed circumferentially around the outer periphery of the connector (12).

6. A tobacco leaf sealing device according to claim 1, characterized in that, The tobacco sealing device also includes a plurality of support rods (16), which are arranged circumferentially on the base (1) and on the outer ring of the lower film sleeve (2).

7. A tobacco leaf sealing device according to claim 6, characterized in that, The tobacco sealing device also includes several extension plates (15), and the several extension plates (15) are arranged in a one-to-one correspondence with the several support rods (16), and the support rods (16) are installed on the extension plates (15).

8. A tobacco leaf sealing device according to claim 6, characterized in that, The tobacco sealing device also includes several reinforcing members (18), which are connected between two adjacent support rods (16).

9. A tobacco leaf sealing device according to any one of claims 1-8, characterized in that, The tobacco sealing device also includes a plurality of lifting columns (20), which are circumferentially spaced on the bottom wall of the base (1).

10. A tobacco leaf sealing device according to any one of claims 1-8, characterized in that, The elastic element (7) is a compression spring.