Leak-proof packaging tin

Abstract

The utility model relates to the technical field of packaging cans, in particular to a leakproof packaging tin which comprises a tin body and a cover body, a hole groove is formed in the top of the cover body, an exhaust funnel is fixedly connected to the position, corresponding to the hole groove, of the inner top of the cover body, an installation plate is fixedly connected to the inner wall of the exhaust funnel, a positioning hole is formed in the middle of the installation plate, and the positioning hole is communicated with the hole groove. And a connecting column is inserted into the positioning hole, a limiting head is fixedly connected to the bottom end of the connecting column, a rubber sheet is fixedly connected to the top end of the connecting column, and an air inlet hole is formed in the bottom of the exhaust barrel. The dust removal cover has the advantages that the rubber sheet is flush with the top surface of the cover body, after dust falls, the dust can be removed by simply wiping the rubber sheet with a towel, and therefore the purposes of facilitating cleaning and ensuring food sanitation and safety are achieved; the rubber sheet assembling device is simple to operate, so that the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging cans, in particular to a leakage-proof packaging can. Background Art

[0002] After some jams are packaged, they will ferment in the can to produce gas, which will cause the air pressure in the can to increase and cause expansion. In severe cases, the can may burst and leak, or after the can is opened, the gas will be released, causing the jam to spray out.

[0003] For example, a packaging jar of grass jam is disclosed in Chinese patent CN115092526B. The packaging jar of grass jam can discharge gas after the grass jam is fermented and produces gas. It can also avoid the packaging jar from bursting and leaking without using glass jars, thereby reducing transportation and storage costs. However, while solving the problem, the packaging jar of grass jam has the following defects:

[0004] 1. A breathable grid is provided at the open end of the one-way valve slot. Therefore, during storage, dust is easily accumulated in the breathable grid and is difficult to clean, resulting in a dirty surface and affecting food hygiene and safety.

[0005] 2. A mesh partition is provided inside the cover body, and an elastic member and a hole-blocking bead are provided between the mesh partition and the cover body. The hole-blocking bead is a tiny component and needs to correspond to the air vent during assembly, which makes the overall assembly inconvenient and affects production efficiency. Utility Model Content

[0006] The purpose of the utility model is to solve at least one of the technical defects described in the background technology.

[0007] To this end, one purpose of the utility model is to provide a leak-proof packaging can, aiming to solve the problem that the air permeable mesh of the grass jam packaging can in the prior art is difficult to clean, affecting food hygiene and safety, and is inconvenient to assemble.

[0008] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one hand provides a leakage-proof packaging can, including a can body and a cover body, characterized in that a hole groove is opened on the top of the cover body, an exhaust pipe is fixedly connected to the position of the inner top of the cover body corresponding to the hole groove, a mounting plate is fixedly connected to the inner wall of the exhaust pipe, a positioning hole is opened in the middle of the mounting plate, a connecting column is inserted into the inside of the positioning hole, the bottom end of the connecting column is fixedly connected to a limiting head, the top end of the connecting column is fixedly connected to a rubber sheet, the bottom of the exhaust pipe is opened with an air inlet hole, and the edge of the top of the mounting plate is opened with an air outlet hole.

[0009] Preferably, the inner wall of the hole groove is threadedly connected with a cover plate, and a ventilation hole is provided on the cover plate. There is a gap between the cover plate and the rubber sheet to prevent children from scratching the rubber sheet and causing the problem of external air entering.

[0010] Preferably, the ventilation hole is located at the center of the cover plate, and the ventilation hole is in a hexagonal or cross shape, so that it is convenient to disassemble and assemble using an existing screwdriver or hexagonal wrench.

[0011] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0012] 1. By making the rubber sheet flush with the top surface of the cover, after dust falls, the dust can be removed by simply wiping it with a towel, thereby achieving the purpose of convenience and cleaning and ensuring food hygiene and safety.

[0013] 2. During production and assembly, hold the rubber sheet, align the limit head with the positioning hole, and press down hard so that the limit head passes through the positioning hole to complete the assembly of the rubber sheet. The operation is simple, so the production efficiency can be improved.

[0014] 3. By setting a cover plate to cover the rubber sheet, it can prevent children from curiously picking at the rubber sheet, causing the outside air to enter. The air vents are set in a cross shape or a hexagonal shape, and the existing screwdriver or hexagonal wrench tool can be inserted into the air vent to disassemble and assemble the cover plate. The operation is simple and the assembly efficiency of the product is ensured.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a structural schematic diagram according to the utility model.

[0018] Figure 2 It is a schematic diagram of the exploded structure according to the utility model.

[0019] Figure 3 It is a schematic cross-sectional structure diagram of the cover body and the rubber sheet according to the utility model.

[0020] Figure 4 It is a structural schematic diagram of a positioning cylinder according to the utility model.

[0021] Figure 5 It is a schematic cross-sectional structure diagram of the cover body according to the second embodiment of the present invention.

[0022] Among them: 1. tank body, 11. external thread, 2. cover body, 21. hole groove, 22. exhaust pipe, 23. mounting plate, 24. positioning hole, 25. air inlet, 26. air outlet, 3. connecting column, 31. limit head, 32. rubber sheet, 4. positioning cylinder, 41. aluminum film, 5. waterproof breathable membrane, 6. cover plate, 61. air vent. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model provides a leakage-proof packaging can.

[0026] Embodiment 1:

[0027] like Figure 1-4 As shown, it includes a tank body 1 and a cover body 2. The outer surface of the top of the tank body 1 is provided with an external thread 11, and the tank body 1 is threadedly connected to the cover body 2 through the external thread 11. A hole groove 21 is opened on the top of the cover body 2, and an exhaust pipe 22 is fixedly connected to the position of the inner top of the cover body 2 corresponding to the hole groove 21. The inner wall of the exhaust pipe 22 is fixedly connected to a mounting plate 23. A positioning hole 24 is opened in the middle of the mounting plate 23. A connecting column 3 is inserted into the inside of the positioning hole 24, and the bottom end of the connecting column 3 is fixedly connected to a limiting head 31. The limiting head 31 is made of rubber material and can be compressed and inserted into the positioning hole 24. The limiting head 31 is in the shape of a cone or a truncated cone with a small bottom diameter, which is convenient for inserting the limiting head 31 into the positioning hole 24. The limiting head 31 can position the connecting column 3, and the top of the connecting column 3 is fixedly connected to a rubber sheet 32. The rubber sheet 2 is soft and elastic. The bottom surface is supported by the mounting plate 23, and the top surface is flush with the top of the cover body 2. Figure 1As shown, an air inlet 25 is provided at the bottom of the exhaust pipe 22, and an air outlet 26 is provided at the edge of the top of the mounting plate 23. After the jam in the tank body 1 ferments to produce gas, the gas can enter the exhaust pipe 22 upward through the air inlet 25, and then push the rubber sheet 32 ​​upward through the air outlet 26. After the rubber sheet 32 ​​is deformed, the gas can be discharged from the gap. When the air pressure in the tank body 1 is balanced with the external air pressure, the rubber sheet 32 ​​can be restored to block the air outlet 26 to prevent external air from entering.

[0028] Specifically, the outer surface of the bottom end of the exhaust tube 22 is threadedly connected to the positioning tube 4, the inner wall of the positioning tube 4 is fixedly connected to an aluminum film 41 with a plurality of small holes, and the interior of the positioning tube 4 is provided with a waterproof and breathable membrane 5. The aluminum film 41 blocks the jam to prevent it from directly contacting the waterproof and breathable membrane 5, and the waterproof and breathable membrane 5 prevents liquid from passing through and only allows air to penetrate into the exhaust tube 22.

[0029] Embodiment 2:

[0030] like Figure 5 As shown, on the basis of embodiment one, the difference from embodiment one lies in that the inner wall of the hole groove 21 is threadedly connected with a cover plate 6, a vent hole 61 is provided on the cover plate 6, the top surface of the rubber sheet 32 ​​is lower than the top surface of the cover body 2, and there is a gap between the cover plate 6 and the rubber sheet 32, so that when the gas passes through the air outlet 26 to push the rubber sheet 32 ​​upward, the rubber sheet 32 ​​can be deformed and a gap is generated between the hole groove 21, so that air can enter between the cover plate 6 and the rubber sheet 32 ​​through the gap, and then be discharged through the vent hole 61.

[0031] Preferably, the air hole 61 is located at the center of the cover plate 6, and the shape of the air hole 61 is hexagonal or cross-shaped. An existing screwdriver or hexagonal wrench can be used to insert into the air hole 61, and then the cover plate 6 can be threadedly connected to the hole groove 21, or it can be removed from the hole groove 21, thereby achieving the purpose of easy disassembly and assembly, thereby facilitating production and assembly.

[0032] The working principle of the utility model is as follows: when in use, the jam in the tank body 1 ferments to produce gas, which increases the air pressure in the tank body 1, and the gas will penetrate the aluminum film 41, the waterproof breathable membrane 5 and the air inlet 25 to enter the exhaust pipe 22, and then push the rubber sheet 32 ​​upward through the air outlet 26 to deform it, thereby forming a gap between the rubber sheet 32 ​​and the hole groove 21, so that the gas in the exhaust pipe 22 can be discharged through the gap. When the air pressure in the tank body 1 is balanced with the external air pressure, the rubber sheet 32 ​​can rely on its own elasticity to return to the original position and block the air outlet 26, thereby preventing the entry of external air.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. By making the rubber sheet 32 ​​flush with the top surface of the cover body 2, there are no holes or gaps on the top of the cover body 2. Even if dust falls on it, it can be removed by simply wiping it with a towel, thereby achieving the purpose of convenience and cleaning and ensuring food hygiene and safety.

[0035] 2. During production and assembly, hold the rubber sheet 32, align the limit head 31 with the positioning hole 24, and press down hard so that the limit head 31 passes through the positioning hole 24 to complete the assembly of the rubber sheet 32. The operation is simple, so the production efficiency can be improved.

[0036] 3. In another embodiment, a cover plate 6 is provided to cover the rubber sheet 32 ​​so that the rubber sheet 32 ​​cannot be touched. This can prevent children from picking at the rubber sheet 32 ​​out of curiosity, causing the outside air to enter. The air vent 61 is provided in a cross shape or a hexagonal shape. An existing screwdriver or hexagonal wrench tool can be inserted into the air vent 61 to rotate the cover plate 6 to achieve the purpose of disassembly and assembly. The operation is simple and the assembly efficiency of the product is ensured.

Claims

1. A leak-proof packaging can, comprising a can body (1) and a cover body (2), characterized in that: The top of the cover body (2) is provided with a hole groove (21), an exhaust pipe (22) is fixedly connected to a position of the inner top of the cover body (2) corresponding to the hole groove (21), the inner wall of the exhaust pipe (22) is fixedly connected to a mounting plate (23), a positioning hole (24) is provided in the middle of the mounting plate (23), a connecting column (3) is inserted into the inside of the positioning hole (24), the bottom end of the connecting column (3) is fixedly connected to a limiting head (31), the top end of the connecting column (3) is fixedly connected to a rubber sheet (32), the bottom of the exhaust pipe (22) is provided with an air inlet hole (25), and the edge of the top of the mounting plate (23) is provided with an air outlet hole (26).

2. The leak-proof packaging can according to claim 1, characterized in that: The outer surface of the top end of the tank body (1) is provided with an external thread (11), and the tank body (1) is threadably connected to the cover body (2) via the external thread (11).

3. The leak-proof packaging can according to claim 1, characterized in that: The outer surface of the bottom end of the exhaust cylinder (22) is threadedly connected to a positioning cylinder (4), and the inner wall of the positioning cylinder (4) is fixedly connected to an aluminum film (41) with a plurality of small holes.

4. The leak-proof packaging can according to claim 3, characterized in that: A waterproof and breathable membrane (5) is arranged inside the positioning cylinder (4).

5. The leak-proof packaging can according to claim 1, characterized in that: The inner wall of the hole groove (21) is threadedly connected to a cover plate (6), and the cover plate (6) is provided with a vent hole (61).

6. The leak-proof packaging can according to claim 5, characterized in that: There is a gap between the cover plate (6) and the rubber sheet (32).

7. The leak-proof packaging can according to claim 6, characterized in that: The air vent (61) is located at the center of the cover plate (6), and the shape of the air vent (61) is hexagonal or cross-shaped.

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