Mason jar sealing device

By designing a sealing device suitable for Mason flasks of different diameters, and utilizing the annular partition and sealing structure of the adapter component, the problem of cap jamming was solved, enabling convenient sealing and vacuuming, as well as safe cap removal, thus improving the user experience.

WO2026118823A1PCT designated stage Publication Date: 2026-06-11QIU MIN

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
QIU MIN
Filing Date
2025-11-13
Publication Date
2026-06-11

AI Technical Summary

Technical Problem

Existing Mason jar sealing devices can only accommodate one caliber, which makes the cap easy to get stuck during vacuuming, difficult to remove, and requires tools, making them inconvenient to use and posing safety risks.

Method used

A Mason jar sealing device was designed, comprising a main unit and an adapter assembly. The adapter assembly contains a cylindrical support and an annular partition. The support has sealing structures at both ends, which can accommodate Mason jars of different diameters and can be removed by hand when the cap is stuck. The design of the annular partition and sealing structure achieves convenient sealing and safe removal.

Benefits of technology

It enables convenient sealing and vacuuming of Mason flasks of different diameters, avoiding the reliance on tools when the cap gets stuck, and improving safety and convenience of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

A Mason jar sealing device, comprising a main unit (1) and an adapter assembly (2). The main unit is internally provided with a partition plate (11), wherein the partition plate is provided with a through hole (111), the through hole being connected to an air suction tube of a vacuum pump (121); and an outer surrounding rib (112) and an inner surrounding rib (113) are concentrically arranged on the side of the partition plate located at a sleeve (13). The adapter assembly comprises a straight cylindrical support (21), both ends of which can be fixedly inserted into the sleeve, wherein a first opening (211) and a second opening (212) are respectively provided at the two ends of the support; an annular partition plate (22) is provided in the support; the first opening and the second opening are respectively located on two sides of the annular partition plate and can both be mounted at the mouth of a Mason jar; and the first opening is provided with a first sealing structure, and the second opening is provided with a second sealing structure. The device can be adapted to two types of Mason jars with different mouth diameters, and when a sealing lid at the mouth is stuck in the sealing device, the lid can be removed by hand without tools, making the device convenient and safe to use.
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Description

A Mason flask sealing device Technical Field

[0001] This invention relates to the field of vacuum device technology, and more specifically, to a Mason flask sealing device. Background Technology

[0002] Mason jars are glass jars with excellent sealing properties. To effectively prevent the entry of air and moisture and maintain the freshness of the food inside, a suitable Mason jar sealing device is typically used to completely remove the air from the jar, thereby extending the storage time of the food. Mason jars are usually available in standard and wide-mouth sizes. Currently, Mason jar sealing devices are generally only designed for one type of Mason jar, requiring multiple sealing devices to meet the vacuum requirements of Mason jars with different diameters.

[0003] To address the above situation, Chinese Patent Publication No. CN216375472U discloses a Mason flask vacuum adapter, which includes an adapter body. A partition is disposed in the middle of the adapter body, dividing the adapter body into a first cover and a second cover. The first cover has a first cover-shaped inner cavity, and the second cover has a second cover-shaped inner cavity. The openings of the first and second covers have different diameters. The partition has a through hole connecting the first and second cover-shaped inner cavities. Annular protrusions are formed on both sides of the partition facing the first and second cover-shaped inner cavities, corresponding to the positions of the through holes. The through holes connect with the suction pipe of a vacuum pumping device for vacuum pumping, and the annular protrusions serve a sealing function. This type of Mason flask vacuum adapter, with its main body divided into a first and second cover by a partition, and the openings of the first and second covers having different diameters, can accommodate Mason flasks with different mouth diameters.

[0004] However, in actual operation, there may be cases where the vacuum sealing of the Mason jar is not completed. In this case, it is necessary to readjust the position of the cap or replace it with a new cap. When using a Mason jar vacuum adapter similar to the one described above for vacuuming, the cap used to seal the Mason jar will be directly stuck on the adapter body (i.e., the first or second cover-shaped inner cavity) and difficult to pour out. Tools are needed to pry the cap out, but due to its size limitations, even with tools, it is still difficult to pry the cap out, and it may even injure the operator. Summary of the Invention

[0005] This invention provides a Mason jar sealing device that can be adapted to two different diameter Mason jars. When the cap used to seal the mouth of the Mason jar is stuck in the sealing device, the cap can be removed by hand without the aid of tools, making it convenient and safe to use.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A Mason flask sealing device is provided, comprising a main unit and an adapter assembly. The main unit has a partition plate, one side of which is a receiving cavity and the other side is a sleeve. A vacuum pump is installed in the receiving cavity. The partition plate has a through hole connected to the vacuum pump's suction pipe. The partition plate has concentrically arranged outer and inner ribs on the side of the sleeve, and the through hole is located within the area enclosed by the inner ribs. The adapter assembly includes a straight cylindrical bracket that can be inserted and fixed into the sleeve at both ends. The bracket has a first opening and a second opening at each end. The support has two openings, with an annular partition inside. The first and second openings are located on opposite sides of the annular partition and can both be installed at the mouth of the Mason flask. The first opening has a first sealing structure, and the second opening has a second sealing structure. When the first opening is inserted into the sleeve, the first sealing structure surrounds the outer rib, and the second sealing structure fits into the external thread of the Mason flask mouth. When the second opening is inserted into the sleeve, the second sealing structure surrounds the inner rib, and the first sealing structure fits into the external thread of the Mason flask mouth.

[0008] Furthermore, the size of the annular opening in the middle of the annular partition is slightly smaller than the size of the cap used to seal the mouth of the Mason flask.

[0009] Furthermore, several ribs are evenly distributed on both sides of the annular partition, and the ribs are distributed in a radiating pattern outward from the center of the annular opening.

[0010] Preferably, the annular partition has a first support member on one side of the first opening, and the first sealing structure includes a first sealing ring, which is fixed on the first support member and fits against the inner wall of the first opening. When the first opening is inserted into the sleeve, the first sealing ring surrounds the outer rib, and the partition, the outer rib, the first sealing ring, the first support member, and the annular partition together form a first cavity, which communicates with the annular opening.

[0011] Preferably, the annular partition has a second support member on one side of the second opening, and an installation groove is formed between the second support member and the inner wall of the bracket. The second sealing structure includes a pressure-holding member and a second sealing ring. The pressure-holding member is disposed in the installation groove and fits against the inner wall of the second opening, and the second sealing ring is fixed to the inner wall of the pressure-holding member. When the second opening is inserted into the sleeve, the second sealing ring surrounds the inner rib. The partition, the inner rib, the second sealing ring, the second support member, and the annular partition together form a second cavity, which communicates with the annular opening.

[0012] Preferably, the pressure-holding component includes a housing and a step disposed on the inner side of the housing. The second sealing ring has a groove, and a sealing strip extends outward from the bottom of the groove. The second sealing ring is disposed on the step. One side of the groove fits against the inner side of the housing, and the other side surrounds the inner rib. The sealing strip fits against the inner side of the step and is embedded together in the mounting groove.

[0013] Preferably, the axial length of the cylindrical support is greater than the depth to which it is inserted into the sleeve.

[0014] Optionally, the inner wall of the sleeve is provided with a guide limiting member, and the outer wall of the bracket is provided with a mounting rail. The bracket is fixedly inserted into the sleeve through the cooperation of the mounting rail and the guide limiting member.

[0015] Optionally, the mounting rail has an inlet on the outer wall at both ends of the bracket, and a bend in the middle of the mounting rail. When the bracket is inserted into the sleeve, the guide limiting member slides in along the inlet and rotates to the bend to fix it.

[0016] Compared with the prior art, the Mason flask sealing device of the present invention is provided with an adapter assembly. The adapter assembly includes a cylindrical bracket that can be inserted and fixed to the sleeve of the main unit at both ends. The bracket has an annular partition inside, and each end of the bracket has an opening located on both sides of the annular partition. Both openings at both ends are provided with a sealing structure that can seal with the sleeve. Since both ends of the adapter assembly can be installed at the mouth of the Mason flask, and the part connected to the main unit can form a sealed space, it is possible to seal and vacuum Mason flasks of different diameters. At the same time, due to the annular partition inside the cylindrical bracket of the adapter assembly, when the cap of the Mason flask gets stuck in the adapter assembly due to accidental operation, it can be directly removed by hand from the opposite side of the annular partition without the need for any tools, making it convenient and safe to use. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the main unit of the Mason flask sealing device in one embodiment of the present invention.

[0018] Figure 2 is a schematic diagram of the adapter assembly of the Mason flask sealing device in one embodiment of the present invention.

[0019] Figure 3 is a perspective view of the adapter assembly of the Mason flask sealing device in one embodiment of the present invention.

[0020] Figure 4 is a schematic diagram of the connection between the Mason flask sealing device and the small-diameter Mason flask in Embodiment 2 of the present invention.

[0021] Figure 5 is a schematic diagram of the connection between the Mason flask sealing device and the large-diameter Mason flask in Embodiment 3 of the present invention.

[0022] Figure 6 is a schematic diagram of the second sealing structure in Embodiment 3 of the present invention. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It should be understood that terms such as "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer," indicating orientation or positional relationships based on the orientation or positional relationships shown in the drawings, are only for the convenience of describing the present invention and 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, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationships; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] Example 1

[0025] Figures 1 to 3 show a first embodiment of the Mason flask sealing device of the present invention. As shown in Figures 1 and 2, the Mason flask sealing device includes a main unit 1 and a connecting assembly 2. The main unit 1 has a partition plate 11, one side of which is a receiving cavity 12, and the other side is a sleeve 13. A vacuum pump 121 is provided in the receiving cavity 12. The partition plate 11 has a through hole 111, which is connected to the suction pipe (not shown) of the vacuum pump 121. The partition plate 11 has concentrically arranged outer ribs 112 and inner ribs 113 on the side of the sleeve 13, and the through hole 111 is located within the area enclosed by the inner ribs 113. As shown in Figure 2, the adapter assembly 2 includes a straight cylindrical bracket 21 that can be inserted and fixed in the sleeve 13 at both ends. The bracket 21 has a first opening 211 and a second opening 212 at both ends. The bracket 21 also has an annular partition 22 inside. The first opening 211 and the second opening 212 are located on both sides of the annular partition 22 and can both be installed at the mouth of the Mason jar. To ensure the airtightness of the adapter assembly 2 after it is connected to the main unit 1, a first sealing structure is provided on the first opening 211 and a second sealing structure is provided on the second opening 212. When the first opening 211 is inserted into the sleeve 13, the first sealing structure surrounds the outer rib 112, and the second sealing structure is fitted with the external thread of the Mason flask's mouth. At this time, the space above the mouth of the flask is a closed sealed space. After the vacuum pump 121 is turned on, the gas inside the Mason flask is extracted from the gaps around the cap and then pumped away by the vacuum pump 121 through the sealed space above the mouth of the flask. Similarly, when the second opening 212 is inserted into the sleeve 13, the second sealing structure surrounds the inner rib 113, and the first sealing structure is fitted with the external thread of the Mason flask's mouth. At this time, the space above the mouth of the flask is a closed sealed space. After the vacuum pump 121 is turned on, the gas inside the Mason flask is extracted from the gaps around the cap and then pumped away by the vacuum pump 121 through the sealed space above the mouth of the flask. Mason flasks typically come in two different sizes. The openings at both ends of the cylindrical support 21 of the adapter component 2 are adapted to the mouths of Mason flasks of different sizes. Therefore, the Mason flask sealing device of this embodiment can seal and evacuate Mason flasks of different sizes. That is, the sealing structures at both ends of the adapter component 2 of the Mason flask sealing device of this invention can seal the mouth of the Mason flask during evacuation and can also seal with the sleeve 13 inside the main unit 1 to form a closed space, thereby creating a pressure difference between the inside and outside of the flask to achieve a seal.

[0026] Meanwhile, due to the annular partition 22 inside the cylindrical bracket 21 of the adapter component 2, when the cap of the Mason jar gets stuck in the adapter component 2 due to misoperation, it can be removed by hand from the opposite side of the annular partition 22 without the need for any tools, making it convenient and safe to use.

[0027] In order to ensure that the bottle neck that is accidentally stuck in the adapter assembly 2 can be easily removed, as shown in Figures 2 and 3, the size of the annular opening 221 in the middle of the annular partition 22 is slightly smaller than the size of the cap used to seal the Mason flask neck. In actual use, since the sealed space above the cap can be connected to the vacuum pump 121 through the through hole 111 on the partition plate 11, the setting of the annular opening 221 will not affect the extraction of gas from the Mason flask, nor will it block the removal of the cap that is accidentally stuck.

[0028] As shown in Figures 2 and 3, several ribs 222 are evenly spaced on both sides of the annular partition 22. The ribs 222 are arranged in a radiating pattern outward from the center of the annular opening 221. In practical applications, when the annular partition 22 is closed over the mouth of the Mason flask, the ribs 222 act as supports and abut against the cap, which is more conducive to the extraction of gas from the flask and creates a pressure difference with the sealed space above the cap, thereby achieving a seal on the Mason flask.

[0029] Example 2

[0030] Figures 1 to 4 show a second embodiment of the Mason flask sealing device of the present invention. As shown in Figure 4, in this embodiment, the annular partition 22 has a first support member 223 on one side of the first opening 211. The first sealing structure includes a first sealing ring 213, which is fixed on the first support member 223 and fits against the inner wall of the first opening 211. When the first opening 211 is inserted into the sleeve 13, the first sealing ring 213 surrounds the outer rib 112. The partition 11, the outer rib 112, the first sealing ring 213, the first support member 223, and the annular partition 22 together form a first cavity 23, which communicates with the annular opening 221. At this time, the second sealing structure fits against the external thread of the Mason flask mouth. That is, this Mason flask sealing device is used to seal Mason flasks with small diameters. When the vacuum pump 121 is started, the gas inside the bottle overflows from around the bottle cap. The gas passes over the top of the bottle cap and enters the first chamber 23 through the annular opening 221 of the annular partition 22. It is then extracted by the vacuum pump 121 through the through hole 111 on the partition plate 11. It is understood that, in order to achieve a better sealing effect, the first sealing ring 213 can be set as a sealing ring with a groove.

[0031] Example 3

[0032] Figures 1 to 4 show a third embodiment of the Mason flask sealing device of the present invention. As shown in Figure 5, in this embodiment, the annular partition 22 has a second support member 224 on one side of the second opening 212. The second support member 224 forms an installation groove 225 between itself and the inner wall of the bracket 21. The second sealing structure includes a pressure-holding member 214 and a second sealing ring 215. The pressure-holding member 214 is disposed in the installation groove 225 and fits against the inner wall of the second opening 212. The second sealing ring 215 is fixed to the inner wall of the pressure-holding member 214. When the second opening 212 is inserted into the sleeve 13, the second sealing ring 215 surrounds the inner rib 113. The partition 11, the inner rib 113, the second sealing ring 215, the second support member 224, and the annular partition 22 together form the second cavity 24. The second cavity 24 communicates with the annular opening 221. At this time, the first sealing structure fits against the external thread of the Mason flask mouth. That is, this Mason flask sealing device is used to seal Mason flasks with large diameters. Unlike Embodiment 2, when sealing the mouth of a large-diameter Mason flask, the second opening 212 of the support 21 needs to maintain the overall stability and sealing of the cylindrical support 21 when it is connected to the sleeve 13. Therefore, a pressure-holding component 214 is required to fix the second sealing ring 215.

[0033] As shown in Figure 6, the pressure-holding component 214 includes a housing 216 and a step 217 disposed on the inner side of the housing 216. The second sealing ring 215 has a groove 218, and a sealing strip 219 extends outward from the bottom of the groove 218. The second sealing ring 215 is disposed on the step 217. One side of the groove 218 fits against the inner side of the housing 216, and the other side surrounds the inner rib 113. The sealing strip fits against the inner side of the step 217 and is embedded together in the mounting groove 225. When the vacuum pump 121 is started, the gas in the bottle overflows from around the bottle cap. The gas passes over the bottle cap and enters the second cavity 24 through the annular opening 221 of the annular partition 22, and is then extracted by the vacuum pump 121 through the through hole 111 on the partition plate 11.

[0034] In the above embodiments, for ease of practical use, the axial length of the cylindrical bracket 21 is greater than the depth into which it is inserted into the sleeve 13, making it more convenient for the user to hold the adapter component 2 and facilitating installation and fixation. Furthermore, there are various ways to connect the adapter component 2 to the main unit 1; in this embodiment, they are fixed together by a snap-fit ​​connection. Specifically, as shown in Figures 1 and 3, a guide limiting member 131 is provided on the inner wall of the sleeve 13, and a mounting rail 251 is provided on the outer wall of the bracket 21. The bracket 21 is fixedly inserted into the sleeve 13 through the cooperation of the mounting rail 251 and the guide limiting member 131. Meanwhile, since the two ends of the adapter component 2 are adapted to Mason flasks of different diameters, the mounting rails 251 on the outer wall of the bracket 21 should be arranged in a centrally symmetrical manner. That is, as shown in Figure 3, the mounting rails 251 have inlets 252 on the outer walls of both ends of the bracket 21, and a bend 253 in the middle of the mounting rails 251. When the bracket 21 is inserted into the sleeve 13, the guide limiter 131 slides in along the inlet and rotates to be fixed by the bend 253.

[0035] The Mason flask sealing device of the present invention includes an adapter component 2. The adapter component 2 includes a cylindrical bracket 21 that can be inserted and fixed to the sleeve 13 of the main unit 1 at both ends. The bracket 21 has an annular partition 22 inside. The bracket 21 has openings at both ends, which are arranged on both sides of the annular partition 22. Both openings at both ends are provided with sealing structures that can seal with the sleeve 13. Since both ends of the adapter component 2 can be installed at the mouth of the Mason flask and the part connected to the main unit 1 can form a sealed space, it is possible to seal and vacuum Mason flasks of different diameters. At the same time, due to the annular partition 22 inside the cylindrical bracket 21 of the adapter component 2, when the cap of the Mason flask gets stuck in the adapter component 2 due to accidental operation, it can be directly removed by hand from the opposite side of the annular partition 22 without the need for any tools, making it convenient and safe to use.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A Mason flask sealing device, comprising a main unit and an adapter assembly, wherein the main unit has a partition plate, one side of the partition plate is a receiving cavity, and the other side is a sleeve, a vacuum pump is disposed within the receiving cavity, and a through hole is provided on the partition plate, the through hole being connected to the vacuum pump's suction pipe, characterized in that, The partition plate has concentrically arranged outer and inner ribs on one side of the sleeve, and the through hole is located within the area enclosed by the inner ribs. The adapter assembly includes a straight cylindrical bracket that can be inserted and fixed into the sleeve at both ends. The bracket has a first opening and a second opening at both ends, and an annular partition is provided inside the bracket. The first opening and the second opening are located on both sides of the annular partition and can both be installed at the mouth of the Mason jar. The first opening is provided with a first sealing structure, and the second opening is provided with a second sealing structure; when the first opening is inserted into the sleeve, the first sealing structure surrounds the outer rib, and the second sealing structure fits into the external thread of the Mason flask mouth; when the second opening is inserted into the sleeve, the second sealing structure surrounds the inner rib, and the first sealing structure fits into the external thread of the Mason flask mouth.

2. The Mason flask sealing device according to claim 1, characterized in that, The size of the annular opening in the middle of the annular partition is slightly smaller than the size of the cap used to seal the mouth of the Mason jar.

3. The Mason flask sealing device according to claim 2, characterized in that, Several ribs are evenly spaced on both sides of the annular partition, and the ribs are arranged in a radiating pattern outward from the center of the annular opening.

4. The Mason flask sealing device according to claim 3, characterized in that, The annular partition has a first support member on one side of the first opening. The first sealing structure includes a first sealing ring, which is fixed to the first support member and fits against the inner wall of the first opening. When the first opening is inserted into the sleeve, the first sealing ring surrounds the outer rib. The partition, the outer rib, the first sealing ring, the first support member, and the annular partition together form a first cavity, which communicates with the annular opening.

5. The Mason flask sealing device according to claim 3, characterized in that, The annular partition has a second support member on one side of the second opening. The second support member forms an installation groove with the inner wall of the bracket. The second sealing structure includes a pressure-holding member and a second sealing ring. The pressure-holding member is disposed in the installation groove and fits against the inner wall of the second opening. The second sealing ring is fixed to the inner wall of the pressure-holding member. When the second opening is inserted into the sleeve, the second sealing ring surrounds the inner rib. The partition, the inner rib, the second sealing ring, the second support member, and the annular partition together form a second cavity, which communicates with the annular opening.

6. The Mason flask sealing device according to claim 5, characterized in that, The pressure-holding component includes a housing and a step disposed on the inner side of the housing. The second sealing ring has a groove, and a sealing strip extends outward from the bottom of the groove. The second sealing ring is disposed on the step. One side of the groove fits against the inner side of the housing, and the other side surrounds the inner frame. The sealing strip fits against the inner side of the step and is embedded together in the mounting groove.

7. The Mason flask sealing device according to claim 1, characterized in that, The axial length of the cylindrical support is greater than the depth to which it is inserted into the sleeve.

8. The Mason flask sealing device according to any one of claims 1 to 7, characterized in that, The inner wall of the sleeve is provided with a guide limiting component, and the outer wall of the bracket is provided with a mounting rail. The bracket is fixedly inserted into the sleeve through the cooperation of the mounting rail and the guide limiting component.

9. The Mason flask sealing device according to claim 8, characterized in that, The mounting rail has inlets on the outer walls at both ends of the bracket, and a bend in the middle of the mounting rail. When the bracket is inserted into the sleeve, the guide limiting member slides in along the inlet and rotates to the bend to fix it.