Built-in venting plug
By designing a built-in exhaust plug in the packaging container and using the structure of the baffle and the plug body, the problems of exhaust film pollution and blockage are solved, and the exhaust gas is smooth and efficient, avoiding the container deformation due to inflation.
Patent Information
- Application Number
- CN202420943449.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The exhaust structure of the existing packaging container has the problems of serious pollution of the exhaust film, easy to blockage and poor exhaust gas, and the exhaust film cannot be reused after use.
A built-in exhaust plug is designed, using a structure where the baffle is combined with the plug body. The baffle is located below the exhaust film, forming a certain height difference, reducing the chance of liquid contacting the exhaust film, and passing through the exhaust passage and exhaust gas The membrane is designed to maximize exhaust holes and ensure smooth gas discharge.
It effectively reduces the risk of pollution and blockage of the exhaust membrane, ensures smooth exhaust, increases exhaust volume, and avoids the container deformation due to gas.
Smart Images
Figure CN222137489U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of packaging materials and more particularly relates to a built-in exhaust plug for a packaging container. Background Art
[0002] Some packaging containers are used to hold solid or liquid substances, and their openings need to be sealed. However, during storage or transportation, some substances will produce gas, which needs to be discharged in time, otherwise, the packaging container may be deformed or even exploded. Therefore, a venting structure is set on such packaging containers that need to be vented.
[0003] Some simple exhaust caps are formed by directly attaching the exhaust membrane to the mouth of the packaging container. The lid at the mouth is not tightly sealed with the mouth, and gas can flow into and out of the exhaust membrane from the container. With this structure, the material in the packaging container is easy to contact the exhaust membrane, and the degree of contamination of the exhaust membrane is relatively serious, which can easily block the exhaust membrane and cause poor exhaust. In addition, when the material in the container needs to be used, the exhaust membrane is pierced and poured out from the mouth of the container. If the material in the container is not completely used up, the exhaust membrane cannot be used anymore.
[0004] In order to reduce the probability of exhaust film contamination, some exhaust covers have complicated structures. However, the exhaust films of such exhaust covers are small in size, and the exhaust is not smooth, which affects the exhaust volume. Utility Model Content
[0005] In order to solve the above problems, the utility model provides a built-in exhaust plug with a simple structure, and a baffle is added to reduce the probability of liquid in the container contacting the exhaust membrane, maximize the size of the exhaust membrane, and exhaust smoothly.
[0006] According to one aspect of the utility model, a built-in exhaust plug is provided for exhausting gas in a container, the exhaust plug includes a plug body, the plug body is provided with an exhaust hole portion, the exhaust hole portion is provided with a plurality of exhaust holes, the exhaust hole portion is covered with an exhaust film to cover the exhaust holes, the exhaust plug also includes a baffle engaged with the lower part of the plug body, the plug body is provided with a side wall extending downward, the edge of the baffle is connected to the side wall of the plug body, the baffle is provided with an exhaust channel for gas exhaust, and the gas in the container is discharged through the exhaust channel, the exhaust film, and the exhaust hole in sequence. Thus, the gas generated in the container enters through the exhaust channel on the baffle, and then passes through the exhaust film and is discharged from the exhaust hole to the outside, the baffle is located below the exhaust film, and there is a certain height difference between the baffle and the exhaust film, the baffle reduces the chance of contact between the liquid in the container and the exhaust film, and reduces the risk of the exhaust film being contaminated and blocked; the exhaust hole portion of the exhaust plug almost occupies the end face of the plug body, the corresponding exhaust film size is larger, and the exhaust volume is correspondingly increased.
[0007] In some embodiments, the exhaust channel is located at the center of the baffle, the lower surface of the baffle is a downwardly convex curved surface, and the edge of the exhaust channel is lower than the edge of the baffle. Therefore, the lower surface of the baffle is a curved surface structure with a low middle and high edges. When the liquid in the container shakes and hits the lower surface of the baffle, the curved surface structure of the lower surface of the baffle will change the direction of the liquid, reduce the chance of the liquid entering the upper part of the baffle, and reduce the contact between the liquid and the exhaust film; when a small amount of liquid in the container shakes and splashes above the baffle, because the baffle has a curvature and the exhaust channel is located lower than the edge, the liquid flows back from the exhaust channel along the baffle into the container.
[0008] In some embodiments, the upper surface of the baffle is provided with a step-shaped structure along the periphery of the exhaust passage, so that the wall thickness around the exhaust passage is smaller than the wall thickness of the entire baffle. Thus, providing a step structure on the upper surface of the baffle is conducive to forming the baffle into a downward curved structure in the baffle molding process.
[0009] In some embodiments, a plurality of evenly distributed blocking ridges are provided at one end of the side wall of the plug body near the exhaust hole, and a clamping edge protruding inward is provided at the lower part of the side wall of the plug body, and a space for installing the blocking piece is formed between the clamping edge and the blocking ridges. Thus, the structure realizes the rapid installation of the blocking piece, the clamping edge can prevent the blocking piece connected to the plug body from falling off, and the blocking ridges prevent the blocking piece from moving upward, so that a certain height difference is formed between the blocking piece and the exhaust membrane, reducing the probability of the liquid in the container contaminating the exhaust membrane.
[0010] In some embodiments, the plug body is provided with an upwardly extending convex edge, which is upwardly protruding relative to the upper surface of the vent portion. Thus, the design of the convex edge forms a heightened structure, ensuring that there is a gap between the vent portion and the installation position of the container, ensuring that the vent is unobstructed and the gas flows smoothly.
[0011] In some embodiments, the outer wall of the plug body is provided with a circle of engaging edges for assembly with the container, so that the engaging edges can be embedded in the packaging container, further improving the connection reliability between the vent plug and the container.
[0012] In some embodiments, the outer diameter of the upper part of the outer wall of the plug body is smaller than that of the lower part, and the fitting edge is located at the upper part of the outer diameter of the plug body. Therefore, a mounting position matching the exhaust plug is provided on the container, and the outer diameter of the plug body is small at the top and large at the bottom, which facilitates the smooth introduction and assembly of the exhaust plug, and the slightly larger outer diameter at the bottom can also ensure that the exhaust plug and the container can be tightly locked.
[0013] Compared with the prior art, the beneficial effects of the utility model are: the utility model has a simple structure, and the baffle and the plug body, the exhaust plug and the container are easy to assemble, and can be used in the container to ensure smooth exhaust. A baffle is arranged below the exhaust membrane, and the baffle is a thin sheet of an arc-shaped structure with an exhaust channel in the center and downward, which changes the direction of liquid splashing in the container. A number of baffle ridges are provided on the inner wall of the plug body to form a height difference between the baffle and the exhaust membrane. The exhaust plug structure provided by the utility model can greatly reduce the probability of contact between the liquid in the container and the exhaust membrane. The exhaust channel, the exhaust membrane, and the exhaust hole form an exhaust path. The exhaust path is smooth, and the size of the exhaust membrane is maximized, thereby ensuring timely exhaust and preventing the container from being deformed due to bloating. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a structural schematic diagram of an embodiment of a built-in exhaust plug of the utility model;
[0015] Figure 2 is a perspective view of one embodiment of a built-in exhaust plug;
[0016] Figure 3 yes Figure 2 A stereogram from another perspective;
[0017] Figure 4 yes Figure 3 A top view of the exhaust membrane is not shown in the figure;
[0018] Figure 5 It is a schematic diagram of the structure of the plug body;
[0019] Figure 6 yes Figure 1 A three-dimensional diagram of the middle baffle;
[0020] Figure 7 It is a structural schematic diagram of another embodiment of a built-in exhaust plug of the utility model;
[0021] Figure 8 yes Figure 7 A three-dimensional view of the middle baffle. DETAILED DESCRIPTION
[0022] The utility model is further described below in conjunction with specific implementation methods.
[0023] like Figures 1 to 3 As shown, a built-in exhaust plug according to one embodiment of the utility model is installed on a packaging container (not shown) to exhaust gas in the container. The exhaust plug includes a plug body 1, an exhaust membrane 2, and a baffle 3 buckled with the lower part of the plug body 1.
[0024] Specifically, the plug body 1 is a structure surrounded by four sides and open at both ends. The plug body 1 has an exhaust hole portion 11 inside. The exhaust hole portion 11 is a planar structure, and a plurality of evenly distributed exhaust holes 111 ( Figure 4 and 5 As shown). A layer of exhaust film 2 is covered on the lower surface of the exhaust hole portion 11 to cover the exhaust hole 111, and the exhaust film 2 is connected to the exhaust hole portion 11 by hot melt technology. The plug body 1 has a side wall 12 extending downward, and the edge of the baffle 3 is connected to the side wall 12 of the plug body 1. The baffle 3 is provided with an exhaust channel 31 for gas discharge, and the gas in the container is discharged in sequence through the exhaust channel 31, the exhaust film 2, and the exhaust hole 111. In the design of the exhaust plug, the exhaust hole portion 11 almost occupies the interior of the plug body 1. Accordingly, the exhaust film 2 has a larger area, which greatly increases the exhaust volume. In the present embodiment, the side wall 12 extending downward from the plug body 1 is a continuous ring. In actual applications, the side wall 12 may also be a non-continuous intermittent structure, which can be assembled with the baffle 3.
[0025] In this embodiment, Figure 1 and 6 As shown, the baffle 3 is a sheet-like structure, the exhaust channel 31 is located at the center of the baffle 3, the lower surface of the baffle 3 is a downwardly convex arc surface 32, and the edge of the exhaust channel 31 is lower than the edge of the baffle 3. In this way, the lower surface of the baffle 3 is a curved surface structure with a low center and a high edge. When the liquid in the container shakes and hits the lower surface of the baffle 3, the curved surface structure of the lower surface of the baffle 3 will change the direction of the liquid, reduce the chance of the liquid entering the upper part of the baffle 3, and reduce the contact between the liquid and the exhaust membrane 2. The upper surface of the baffle 3 is also a structure with a low center and a high edge. When a small amount of liquid in the container shakes and splashes above the baffle 3, because the baffle 3 has an arc and the exhaust channel 31 is located lower than the edge, the liquid flows back into the container from the exhaust channel 31 along the baffle 3.
[0026] like Figure 7 and 8 As shown, a step-like structure 33 can be formed on the upper surface of the baffle 3 along the periphery of the exhaust channel 31, so that the wall thickness around the exhaust channel 31 is smaller than the wall thickness of the entire baffle 3. In this way, in the molding process of the baffle 3, it is beneficial for the baffle 3 to be molded into a downward curved surface structure. In practical applications, the upper surface of the baffle 3 may not be provided with a step-like structure 33, and a structure with a low middle and high edges can be used to facilitate the reflux of liquid splashed onto the baffle 3.
[0027] In order to quickly install the baffle 3, in this embodiment, the baffle 3 and the plug body 1 are installed in a snap-fit manner. Figure 1 and 5As shown, a plurality of evenly distributed vertical blocking ribs 14 are processed at one end of the side wall 12 of the plug body 1 near the exhaust hole 11, and a clamping edge 15 protruding inward is provided at the lower part of the side wall 12 of the plug body 1, and a space 10 for installing the blocking piece 3 is formed between the clamping edge 15 and the blocking ribs 14. This structure realizes the rapid installation of the blocking piece 3, and when the blocking piece 3 is clamped above the clamping edge 15, the clamping edge 15 can prevent the blocking piece 3 from falling. The blocking ribs 14 prevent the blocking piece 3 from moving upward, so that a certain height difference is formed between the blocking piece 3 and the exhaust membrane 2, thereby reducing the probability of the exhaust membrane 2 being contaminated by the liquid in the container.
[0028] In this embodiment, the plug body 1 and the container also adopt a quick installation structure of embedding and snap-fitting. In this embodiment, a downward mounting seat (not shown) is arranged on the inner wall of the top cover of the packaging container. The mounting seat is an annular wall structure adapted to the outer wall of the plug body 1. The annular wall structure allows the plug body 1 to be embedded. A small hole for exhaust is opened at the center of the mounting seat of the cover (not shown). Specifically, the outer wall of the plug body 1 has a circle of embedding edges 16 assembled with the container, such as Figure 1 and 2 As shown, the engaging edge 16 can be embedded in the mounting seat on the packaging container, further improving the connection reliability between the exhaust plug and the container. The outer diameter of the upper part of the outer wall of the plug body 1 is smaller than the outer diameter of the lower part, and the engaging edge 16 is located at the upper part of the outer diameter of the plug body 1. In this way, a mounting position matching the exhaust plug will be set on the container, and the outer diameter of the plug body 1 adopts a structure of small upper and large lower to facilitate the smooth introduction and assembly of the exhaust plug, and the slightly larger outer diameter of the lower part can also ensure that the exhaust plug and the container can be tightly locked.
[0029] In order to ensure that the exhaust hole 111 is not blocked and the gas flows smoothly, the plug body 1 has an upwardly extending convex edge 13 (such as Figure 5 As shown in the figure, the flange 13 is upwardly protruding relative to the upper surface of the exhaust hole portion 11, and the design of the flange 13 forms a heightened structure, so that there is a gap between the exhaust hole portion 11 and the installation position of the container, that is, the root of the mounting seat, so that the gas flows smoothly. In this embodiment, the flange 13 is a continuous ring. In actual applications, the flange 13 can also be a discontinuous intermittent structure, so that there is a gap between the exhaust hole portion 11 and the mounting seat.
[0030] In this embodiment, the plug body 1 has a circular shape, and accordingly, the baffle 3 also has a circular shape. In practical applications, the plug body 1 and the baffle 3 may also have other structures, such as a rectangle or an ellipse.
[0031] The utility model has a simple structure, and the baffle 3 and the plug body 1, the exhaust plug and the container are easy to assemble, and can be used in the container to ensure smooth exhaust. A baffle 3 is arranged below the exhaust membrane 2. The baffle 3 is a thin sheet with an exhaust channel 31 in the center and a downward curved surface 32, which changes the direction of liquid splashing in the container. A plurality of baffle ribs 14 are provided on the inner wall of the plug body 1 to form a height difference between the baffle 3 and the exhaust membrane 2. The exhaust plug structure can greatly reduce the probability of contact between the liquid in the container and the exhaust membrane 2, and reduce the risk of the exhaust membrane 2 being contaminated or blocked. The exhaust channel 31, the exhaust membrane 2, and the exhaust hole 111 form an exhaust path. The gas generated in the container enters through the exhaust channel 31 on the baffle 3, and then passes through the exhaust membrane 2 and is discharged to the outside from the exhaust hole 111. The exhaust path is smooth. The exhaust hole portion 11 of the exhaust plug almost occupies the end face of the plug body 1, and the corresponding exhaust membrane 2 is larger in size, and the exhaust volume is correspondingly increased, which can ensure timely exhaust and avoid deformation of the container due to flatulence.
[0032] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, other modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.
Claims
1. A built-in exhaust plug for exhausting gas in a container, the exhaust plug comprising a plug body (1), the plug body (1) being provided with an exhaust hole portion (11), the exhaust hole portion (11) being provided with a plurality of exhaust holes (111), the exhaust hole portion (11) being covered with an exhaust film (2) to cover the exhaust holes (111), characterized in that: The exhaust plug also includes a baffle (3) that is buckled with the lower part of the plug body (1); the plug body (1) is provided with a side wall (12) extending downward; the edge of the baffle (3) is connected to the side wall (12) of the plug body (1); the baffle (3) is provided with an exhaust channel (31) for exhausting gas; the gas in the container is discharged in sequence through the exhaust channel (31), the exhaust membrane (2), and the exhaust hole (111).
2. The built-in exhaust plug according to claim 1, characterized in that: The exhaust channel (31) is located at the center of the baffle (3); the lower surface of the baffle (3) is a downwardly convex arc surface (32); and the edge position of the exhaust channel (31) is lower than the edge position of the baffle (3).
3. The built-in exhaust plug according to claim 2, characterized in that: The upper surface of the baffle (3) is provided with a step-shaped structure (33) along the periphery of the exhaust passage (31), so that the wall thickness around the exhaust passage (31) is smaller than the overall wall thickness of the baffle (3).
4. The built-in exhaust plug according to claim 1 or 3, characterized in that: A plurality of evenly distributed blocking ridges (14) are provided at one end of the inner side wall of the plug body (1) close to the exhaust hole (11), and a clamping edge (15) protruding inward is provided at the lower part of the side wall (12) of the plug body (1), and a space (10) for mounting a blocking sheet is formed between the clamping edge (15) and the blocking ridge (14).
5. The built-in exhaust plug according to claim 1, characterized in that: The plug body (1) is provided with a convex edge (13) extending upward, and the convex edge (13) is convex upward relative to the upper surface of the exhaust hole portion (11).
6. The built-in exhaust plug according to claim 1, characterized in that: The outer wall of the plug body (1) is provided with a circle of engaging edges (16) for assembling with the container.
7. The built-in exhaust plug according to claim 6, characterized in that: The outer diameter of the upper portion of the outer wall of the plug body (1) is smaller than the outer diameter of the lower portion, and the engaging edge (16) is located at the upper portion of the outer diameter of the plug body (1).