Meisson tank sealing equipment

Abstract

The utility model relates to Meisson tank sealing equipment which is used for sealing a tank cover at a tank opening of a Meisson tank body and comprises a mounting shell, a connecting assembly and an air pumping and discharging assembly. An air inlet is formed in the mounting shell; one end of the connecting assembly is connected with the mounting shell, the other end of the connecting assembly is used for being connected with the Merson tank body, during use, a sealing cavity is formed between the connecting assembly and the Merson tank body, and a tank opening of the Merson tank body is located in the sealing cavity; the air pumping and discharging assembly is installed on the installation shell, communicates with the air inlet and the sealing cavity and is used for pumping air in the Merson tank body so that the tank cover can be sealed on the Merson tank body and selectively opening or closing the air inlet, the air inlet is opened through the air pumping and discharging assembly, and air is conveyed into the sealing cavity; the problems that in the prior art, when an electromagnetic valve is used for inputting gas, the electromagnetic valve is prone to gas leakage and damage are solved. The design structure is simple, operation is convenient, cost is saved, and reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of Mason jars, in particular to a Mason jar sealing device. Background Art

[0002] Mason Jar is a glass jar with a threaded iron lid. It has a very good airtightness and can be used to store dry food or pickle food. Sealing Mason Jar requires an air extraction device and an air intake device.

[0003] The existing air intake device is generally a solenoid valve, through which gas is input into the connection between the sealing device and the Mason jar, so that the Mason jar is sealed and separated from the sealing device. However, since the solenoid valve itself cannot fully withstand the pressure of negative pressure, the solenoid valve may leak in a negative pressure environment, and the valve core of the solenoid valve may be stuck in the open and closed positions, causing the solenoid valve to fail to work. Utility Model Content

[0004] In view of this, the utility model provides a Mason jar sealing device to solve the problems raised by the prior art.

[0005] To achieve one or part or all of the above purposes or other purposes, the utility model proposes: a Mason jar sealing device, used for sealing a jar cover to a jar mouth of a Mason jar body, comprising a mounting shell, a connecting assembly and a gas extraction and discharge assembly; an air inlet is provided on the mounting shell; one end of the connecting assembly is connected to the mounting shell, and the other end is used to connect to the Mason jar body. When in use, a sealed cavity is formed between the connecting assembly and the Mason jar body, and the jar mouth of the Mason jar body is located in the sealed cavity; the gas extraction and discharge assembly is installed on the mounting shell, the gas extraction and discharge assembly connects the gas inlet and the sealed cavity, the gas extraction and discharge assembly is used to suck the gas in the Mason jar body to seal the jar cover to the Mason jar body, and is used to selectively open or close the gas inlet.

[0006] Preferably, the mounting shell includes a mounting cover and a partition plate; the mounting cover has a accommodating cavity with an opening on one side, and the air inlet is provided on the mounting cover; the partition plate covers the opening of the accommodating cavity, the partition plate is connected to the connecting assembly, a vent is provided on the partition plate, and the vent is connected to the sealing cavity; there is a gap between the partition plate and the mounting cover, and the accommodating cavity is connected to the outside through the gap; the exhaust gas assembly is located in the accommodating cavity, and the exhaust gas assembly is connected to the air inlet and the vent.

[0007] Preferably, the air extraction and exhaust assembly includes a vacuum pump, a three-way valve and a sealing member; the vacuum pump is installed in the accommodating chamber, and the vacuum pump is connected to the outside through a gap; the three-way valve is installed in the accommodating chamber, and the three-way valve includes a first hole, a second hole and a third hole that are interconnected, the first hole is connected to the vent hole, the second hole is connected to the vacuum pump, and the third hole is connected to the air inlet; the sealing member is installed at the air inlet, and the sealing member is used to seal or open the air inlet.

[0008] Preferably, the first hole is connected to the vent hole through a flexible air tube, the second hole is connected to the vacuum pump through a flexible air tube, and the third hole is connected to the air inlet through a flexible air tube.

[0009] Preferably, the mounting cover includes a first end wall and a first side wall extending downward from the first end wall, the first end wall and the first side wall enclose a accommodating cavity with a bottom opening; a partition plate is connected to the first end wall, the partition plate is arranged opposite to the first end wall, and the air inlet is opened on the first end wall.

[0010] Preferably, the mounting cover includes a first end wall and a first side wall extending downward from the first end wall, the first end wall and the first side wall enclose a accommodating cavity with a bottom opening; a partition plate is connected to the first end wall, the partition plate is arranged opposite to the first end wall, and the air inlet is opened on the first side wall.

[0011] Preferably, the vacuum pump is mounted on the first end wall, and the vent hole is arranged near or at the center of the partition plate.

[0012] Preferably, a battery compartment and a control switch are provided on the first end wall, the battery compartment is used to install batteries, the batteries are used to power the vacuum pump, and the control switch is used to control the on and off of the vacuum pump circuit.

[0013] Preferably, a plurality of mounting plates are provided on the first end wall, and the vacuum pump is fixed on the mounting plates by screws.

[0014] Preferably, a positioning boss is provided on the first end wall, a connecting boss is provided on the partition plate, and the connecting boss is connected to the positioning boss by screws.

[0015] Preferably, the connecting assembly includes a connecting shell and a first sealing ring; the connecting shell is installed at the bottom of the partition plate; the first sealing ring is installed on the connecting shell and arranged around the sealing cavity. When in use, the first sealing ring is used to rest against the outer wall of the Mason jar body, thereby forming a sealing cavity together with the partition plate.

[0016] Preferably, the sealing cavity passes through the top of the connecting shell, and the top of the connecting shell is sealed and connected to the partition plate; the connecting assembly also includes a sealing ring, which is connected to the bottom of the partition plate, and there is an installation gap between the sealing ring and the inner wall of the connecting shell, one end of the first sealing ring is placed in the installation gap, and the other end of the first sealing ring is used to abut against the outer wall of the Mason jar.

[0017] Preferably, the connecting shell includes a second end wall and a second side wall extending downward from the second end wall, the second end wall is connected to the partition plate, the second end wall is provided with an air hole, and the air hole is connected to the vent hole; the connecting component also includes a sealing ring, the sealing ring is integrally arranged on the second end wall, and an installation gap is provided between the sealing ring and the second side wall, one end of the first sealing ring is placed in the installation gap, and the other end of the sealing ring is used to abut against the outer wall of the Mason jar.

[0018] Preferably, the partition plate is connected to the connecting housing by screws.

[0019] Preferably, a snap-in groove is provided on the partition plate, and a snap-in protrusion cooperating with the snap-in groove is provided on the second end wall.

[0020] Preferably, the snap-fit ​​groove comprises an inserting portion and a snap-fit ​​portion which are interconnected, the snap-fit ​​protrusion is designed in an "L" shape, the snap-fit ​​portion is designed in an "L" shape, and the snap-fit ​​protrusion is snap-fitted with the snap-fit ​​portion through the inserting portion.

[0021] Preferably, the sealed cavity includes a first cavity and a second cavity which are interconnected, the first cavity is located above the second cavity, and the radius of the first cavity is smaller than the radius of the second cavity; the first sealing ring is arranged around the first cavity; the connecting assembly also includes a second sealing ring, the radius of the second sealing ring is larger than the first sealing ring, the second sealing ring is arranged around the second cavity, and the second sealing ring is used to abut against the outer wall of the Mason jar.

[0022] Preferably, a plurality of abutting portions are provided in the sealing cavity, and the abutting portions are used to abut against the tank cover.

[0023] Preferably, abutment portions are provided on the inner wall of the first cavity and the inner wall of the second cavity.

[0024] Preferably, a third sealing ring is provided between the partition plate and the second end wall.

[0025] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0026] After adopting the above-mentioned Mason jar sealing device, it is used to seal the jar cover to the jar mouth of the Mason jar body, characterized in that it includes a mounting shell, a connecting assembly and a pumping and exhausting assembly; an air inlet is opened on the mounting shell; one end of the connecting assembly is connected to the mounting shell, and the other end is used to connect to the Mason jar body, a sealed cavity is formed between the connecting assembly and the Mason jar body, and the jar mouth of the Mason jar body is located in the sealed cavity; the exhausting and exhausting assembly is installed on the mounting shell, and the exhausting and exhausting assembly connects the air inlet and the sealed cavity, and the exhausting and exhausting assembly is used to close the air inlet and discharge the gas in the sealed cavity to the outside, or to open the air inlet and connect the sealed cavity to the outside through the air inlet, and the air inlet is opened by the exhausting and exhausting assembly to supply gas to the sealed cavity, so as to solve the problems of the electromagnetic valve being easy to leak and be damaged when the electromagnetic valve is used to input gas in the prior art. The design has a simple structure, convenient operation, cost saving and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 The overall structure of the Mason jar sealing device in Example 1 is shown in FIG. Figure 1 ;

[0029] Figure 2 for Figure 1 A partial cross-sectional view of

[0030] Figure 3 An exploded view of the overall structure of a Mason jar sealing device in Example 1;

[0031] Figure 4 is a cross-sectional view of a partial part of a Mason jar sealing device in Example 1;

[0032] Figure 5 A cross-sectional view of a Mason jar sealing device according to Embodiment 1 with a lid and a divider installed;

[0033] Figure 6 is a cross-sectional view of a partition plate and a connecting shell of a Mason jar sealing device in Example 1;

[0034] Figure 7 A cross-sectional view of a Mason jar sealing device according to Embodiment 1 with a lid installed;

[0035] Figure 8 The overall structure of the Mason jar sealing device in Example 1 is shown in FIG. Figure 2 ;

[0036] Fig. 9 is a schematic diagram of the overall structure of a Mason jar sealing device in Example 2;

[0037] Fig.10 for Fig. 9 A cross-sectional view of

[0038] Fig.11 An exploded view of the overall structure of a Mason jar sealing device in Example 2;

[0039] Fig.12 is a cross-sectional view of a partial part of a Mason jar sealing device in Example 2;

[0040] Fig.13A cross-sectional view of a Mason jar sealing device according to Embodiment 2 with a lid and a divider installed;

[0041] Fig.14 is a cross-sectional view of a partition plate and a connecting shell of a Mason jar sealing device in Example 2;

[0042] Fig.15 A schematic diagram of a Mason jar sealing device connected to a housing in Example 2;

[0043] Fig.16 Schematic diagram of a partition plate of a Mason jar sealing device in Example 2.

[0044] Wherein: Mason jar body 10, jar cover 20, mounting shell 30, mounting cover 310, first end wall 311, battery compartment 313, control switch 314, compartment cover 315, mounting plate 316, positioning boss 317, accommodating chamber 318, first side wall 312, partition plate 320, vent 321, air delivery pipe 322, connecting boss 323, positioning groove 3231, countersunk hole 3232, snap-in groove 324, plug-in portion 3241, snap-in portion 3242, mounting hole 325, sealing plug 326, accommodating groove 327, air inlet 40 , air intake pipe 41, gap 43, exhaust gas assembly 50, vacuum pump 510, three-way valve 520, first hole 521, second hole 522, third hole 523, seal 530, flexible air pipe 540, connecting assembly 60, connecting shell 610, second end wall 611, second side wall 612, air hole 613, snap-in protrusion 614, threaded hole 615, first sealing ring 620, sealing ring 630, second sealing ring 640, third sealing ring 650, sealing cavity 70, first cavity 710, second cavity 720, abutment portion 730. DETAILED DESCRIPTION

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0046] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0048] See attached Figure 1-16 The utility model proposes a Mason jar sealing device, which is used to seal a jar cover 20 to the jar mouth of a Mason jar body 10, including a mounting shell 30, a connecting assembly 60 and a gas extraction and discharge assembly 50; an air inlet 40 is opened on the mounting shell 30; one end of the connecting assembly 60 is connected to the mounting shell 30, and the other end is used to connect to the Mason jar body 10. When in use, a sealed cavity 70 is formed between the connecting assembly 60 and the Mason jar body 10, and the jar mouth of the Mason jar body 10 is located in the sealed cavity 70; the gas extraction and discharge assembly 50 is installed on the mounting shell 30, and the gas extraction and discharge assembly 50 connects the air inlet 40 and the sealed cavity 70. The gas extraction and discharge assembly 50 is used to extract the gas in the Mason jar body 10, so that the jar cover 20 is sealed to the jar mouth of the Mason jar body 10, and is used to selectively open or close the air inlet 40.

[0049] Specifically, the mounting shell 30 includes a mounting cover 310 and a partition plate 320; the mounting cover 310 has a accommodating cavity 318 with an opening on one side, and the air inlet 40 is provided on the mounting cover 310; the partition plate 320 covers the opening of the accommodating cavity 318, the partition plate 320 is connected to the connecting assembly 60, and a vent hole 321 is provided on the partition plate 320, and the vent hole 321 is connected to the sealing cavity 70; there is a gap 43 between the partition plate 320 and the mounting cover 310, and the accommodating cavity 318 is connected to the outside through the gap 43; the exhaust gas assembly 50 is located in the accommodating cavity 318, and the exhaust gas assembly 50 is connected to the air inlet 40 and the vent hole 321.

[0050] The installation housing 30 is divided into the installation cover 310 and the partition plate 320, and the two are used as independent parts, so that the installation housing 30 is modularized. This design makes the installation, disassembly and maintenance of the exhaust gas assembly 50 simpler and more convenient.

[0051] See attached Figure 2-4The exhaust gas assembly 50 includes a vacuum pump 510, a three-way valve 520 and a sealing member 530; the vacuum pump 510 is installed in the accommodating chamber 318, and the vacuum pump 510 is connected to the outside through the gap 43; the three-way valve 520 is installed in the accommodating chamber 318, and the three-way valve 520 includes a first hole 521, a second hole 522 and a third hole 523 that are interconnected, the first hole 521 is connected to the vent hole 321, the second hole 522 is connected to the vacuum pump 510, and the third hole 523 is connected to the air inlet 40; the sealing member 530 is installed at the air inlet 40, and the sealing member 530 is used to seal or open the air inlet 40.

[0052] Specifically, the first hole 521 is connected to the vent hole 321 through the flexible air tube 540, the second hole 522 is connected to the vacuum pump 510 through the flexible air tube 540, and the third hole 523 is connected to the air inlet 40 through the flexible air tube 540. The flexible air tube 540 is provided to ensure the air tightness of the connection between the vent hole 321, the air inlet 40, the vacuum pump 510 and the three-way valve 520. In addition, in order to facilitate the communication between the vent hole 321 and the flexible air tube 540, the partition plate 320 further includes an air supply pipe 322, which is connected to the vent hole 321, and the air supply pipe 322 is connected to the first hole 521 through the flexible air tube 540.

[0053] Based on the above scheme, when the Mason jar 10 needs to be sealed, the sealing member 530 is first used to seal the air inlet 40, and then the jar cover 20 is placed on the jar mouth of the Mason jar 10, and then the Mason jar 10 is inserted into the connecting assembly 60. At this time, a sealed cavity 70 is formed between the partition plate 320, the connecting assembly 60 and the Mason jar 10. The vacuum pump 510 is started to extract the gas in the sealed cavity 70 and the Mason jar 10, and the gas is discharged into the accommodating cavity 318 through the vent hole 321, the first hole 521, the second hole 522 and the vacuum pump 510 in sequence, and the gas in the accommodating cavity 318 is then discharged to the outside through the gap 43 between the mounting cover 310 and the end of the partition plate 320, so that the gas pressure in the accommodating cavity 318 is kept in line with the atmospheric pressure, which is convenient for the circulation of the vacuum pump 510. When the gas in the sealed cavity 70 is extracted, the pressure in the sealed cavity 70 decreases, and the atmospheric pressure presses the Mason jar body 10 into the sealed cavity 70, so that the Mason jar body 10 is sealed on the connecting assembly 60. When the gas in the Mason jar body 10 is extracted, the gas is extracted through the gap between the tank cover 20 and the tank mouth, the negative pressure in the Mason jar body 10 increases, and the tank cover 20 is affected by the pressure and fits onto the tank mouth, so that the tank cover 20 seals the tank mouth of the Mason jar body 10. After the sealing is completed, the vacuum pump 510 can be turned off.

[0054] See attached Figure 4When it is necessary to release the seal between the Mason jar 10 and the connecting assembly 60, the seal 530 is separated from the air inlet 40, and the external gas flows into the sealed cavity 70 through the air inlet pipe 41, the third hole 523, the first hole 521 and the vent hole 321 in sequence, so that the pressure in the sealed cavity 70 is balanced with the atmospheric pressure, and the connection between the connecting assembly 60 and the Mason jar 10 is released. By separating the seal 530 from the air inlet 40, the gas is transported into the sealed cavity 70, which solves the problems of the electromagnetic valve being easily leaked and damaged when the electromagnetic valve is used to input gas in the prior art. The design has a simple structure, convenient operation, cost saving and high reliability.

[0055] See attached Figure 4 and 5 In this embodiment, in order to facilitate the sealing member 530 to seal or open the air inlet 40, an air inlet pipe 41 is provided on the mounting cover 310, and the air inlet pipe 41 is connected to the air inlet 40, and the air inlet pipe 41 is connected to the third hole 523 through a flexible air pipe 540. The connection between the sealing member 530 and the air inlet pipe 41 can be achieved by elastic sealing or metal sealing. When an elastic seal is adopted, the sealing member 530 is a rubber plug, which is sleeved on the air inlet pipe 41 to seal the air inlet pipe 41. When a metal seal is adopted, the sealing member 530 is a metal plug with a thread, a sealing ring is embedded on the metal plug, and the metal plug is threadedly connected to the air inlet pipe 41. In this embodiment, an elastic rubber seal is preferred.

[0056] See attached Figure 5 The mounting cover 310 includes a first end wall 311 and a first side wall 312 extending downward from the first end wall 311, the first end wall 311 and the first side wall 312 enclose a bottom-opening accommodation cavity 318; a partition plate 320 is connected to the first end wall 311, the partition plate 320 is arranged opposite to the first end wall 311, and the air inlet 40 is opened on the first end wall 311. This design makes the air inlet 40 located at the top surface of the mounting cover 310, which is convenient for users to operate the sealing member 530 to separate from the air inlet 40.

[0057] See attached Figure 8 The mounting cover 310 includes a first end wall 311 and a first side wall 312 extending downward from the first end wall 311, the first end wall 311 and the first side wall 312 enclose a bottom-opening accommodation cavity 318; a partition plate 320 is connected to the first end wall 311, the partition plate 320 is arranged opposite to the first end wall 311, and the air inlet 40 is opened on the first side wall 312. This design enables the air inlet 40 to be located on the side of the mounting cover 310, saving the top space of the device and making the structure more compact.

[0058] Furthermore, a battery compartment 313 and a control switch 314 are provided on the first end wall 311 . The battery compartment 313 is used to install batteries, and the batteries are used to supply power to the vacuum pump 510 . The control switch 314 is used to control the on and off of the circuit of the vacuum pump 510 .

[0059] Specifically, the mounting cover 310 further includes a compartment cover 315 for covering the battery compartment 313 to protect the battery. The operation of the vacuum pump 510 can be quickly controlled by the control switch 314, which is convenient for the user to operate.

[0060] See attached Figure 4 and 7 , the vacuum pump 510 is mounted on the first end wall 311, and the vent hole 321 is arranged near the center of the partition plate 320 or at the center of the partition plate 320. The distance between the vent hole 321 at the center and the cavity wall of the sealing cavity 70 is relatively uniform, which can facilitate the vacuum pump 510 to extract gas through the vent hole 321 and improve the working efficiency of the vacuum pump 510, and reduce the local stress concentration of the partition plate 320 on the other hand, and reduce the risk of damage to the partition plate 320 due to uneven force.

[0061] Specifically, a plurality of mounting plates 316 are provided on the first end wall 311, and the vacuum pump 510 is fixed to the mounting plates 316 by screws. There are gaps between adjacent mounting plates 316, and the gaps are used to increase the contact area between the vacuum pump 510 and the air in the accommodating chamber 318, so as to facilitate heat dissipation when the vacuum pump 510 is working and ensure the working efficiency of the vacuum pump 510.

[0062] See attached Figure 5 and 6 A positioning boss 317 is provided on the first end wall 311, and a connecting boss 323 is provided on the partition plate 320. The connecting boss 323 is connected to the positioning boss 317 by screws.

[0063] Specifically, a positioning groove 3231 is provided at one end of the connecting boss 323, and a countersunk hole 3232 is provided at the other end. The positioning groove 3231 and the countersunk hole 3232 are connected, and the positioning groove 3231 is located near one end of the first end wall 311. An internal thread is provided on the positioning boss 317. Therefore, when assembling the partition plate 320 and the first end wall 311, the positioning boss 317 is first matched with the positioning groove 3231, and then the screw is passed through the countersunk hole 3232 and threadedly connected with the positioning boss 317. In this embodiment, the connecting boss 323 is symmetrically arranged on the partition plate 320, and the positioning boss 317 is symmetrically arranged on the first end wall 311. The two connecting bosses 323 and the two positioning bosses 317 are matched to improve the stability of the partition plate 320 installed on the first end wall 311. In addition, a sealing plug 326 is added at the opening of the countersunk hole 3232 to improve the air tightness of the partition plate 320 and prevent the gap between the screw and the countersunk hole 3232 from affecting the sealing of the Mason jar body 10.

[0064] Furthermore, the connecting assembly 60 includes a connecting shell 610 and a first sealing ring 620; the connecting shell 610 is installed at the bottom of the partition plate 320; the first sealing ring 620 is installed on the connecting shell 610, and when in use, the first sealing ring 620 is used to rest against the outer wall of the Mason jar body 10, thereby forming a sealed cavity 70 together with the partition plate 320.

[0065] Specifically, the first sealing ring 620 is designed to be arched at one end against the Mason jar body 10, and the arch can increase the contact area between the first sealing ring 620 and the Mason jar body 10, thereby improving the air tightness. When sealing the Mason jar body 10, the Mason jar body 10 extends into the sealed cavity 70 in the connecting shell 610, and the vacuum pump 510 is started to extract the gas in the sealed cavity 70, so that the pressure in the sealed cavity 70 becomes smaller, so that the first sealing ring 620 fits on the Mason jar body 10, and the sealing of the Mason jar body 10 is achieved. When the sealing member 530 is separated from the air inlet pipe 41, the external gas flows into the sealed cavity 70, so that the pressure in the sealing ring is balanced with the atmospheric pressure, so that the first sealing ring 620 is separated from the Mason jar body 10, and the Mason jar body 10 is easily taken out from the connecting shell 610.

[0066] See attached Figure 1-8 , which is Example 1 of the device. The sealing cavity 70 passes through the top of the connecting shell 610, so that the connecting shell 610 is of tubular design. The top of the connecting shell 610 is tightly connected to the partition plate 320; the connecting assembly 60 also includes a sealing ring 630, which is located in the sealing cavity 70, and the sealing ring 630 is connected to the bottom of the partition plate 320. In this embodiment, the partition plate 320 and the sealing ring 630 are integrally formed to ensure the airtightness between the partition plate 320 and the sealing ring 630. There is an installation gap between the sealing ring 630 and the inner wall of the connecting shell 610, one end of the first sealing ring 620 is placed in the installation gap, and the other end of the first sealing ring 620 is used to abut against the outer wall of the Mason jar body 10.

[0067] Specifically, a mounting hole 325 is provided on the partition plate 320, and a threaded hole 615 is provided on the connecting shell 610. The partition plate 320 and the connecting shell 610 are connected and fixed by screws passing through the mounting hole 325 and the threaded hole 615. The partition plate 320 and the connecting shell 610 are connected by screws, and the structure is more precise, which reduces the loosening or displacement of parts caused by vibration or impact generated when the vacuum pump 510 is working, thereby improving the reliability of the equipment.

[0068] When the Mason jar 10 is inserted into the connecting shell 610, the jar cover 20 and the jar mouth of the Mason jar 10 are both located in the sealing ring 630. The sealing ring 630 has a certain rigidity, which can facilitate the installation of the first sealing ring 620 so that the first sealing ring 620 fits the Mason jar 10, and can fix the position of the jar cover 20 to prevent the jar cover 20 from shifting when it fits the Mason jar 10.

[0069] See attached Figure 9-16 , which is the embodiment 2 of the device. The connecting shell 610 includes a second end wall 611 and a second side wall 612 extending downward from the second end wall 611, the second end wall 611 is connected to the partition plate 320, and the second end wall 611 is provided with an air hole 613, and the air hole 613 is connected to the vent hole 321; the connecting assembly 60 also includes a sealing ring 630, the sealing ring 630 is integrally arranged on the second end wall 611, and there is an installation gap between the sealing ring 630 and the second side wall 612, one end of the first sealing ring 620 is placed in the installation gap, and the other end of the sealing ring 630 is used to abut against the outer wall of the Mason jar body 10.

[0070] See attached Figure 14-16 The partition plate 320 is provided with a snap-in groove 324, and the second end wall 611 is provided with a snap-in protrusion 614 that cooperates with the snap-in groove 324. The snap-in protrusion 614 and the snap-in groove 324 can cooperate in a rotating buckle, a straight plug buckle, a lock buckle, or the like. In this embodiment, the rotating buckle is preferred.

[0071] For details, see the attached Fig.16 The clamping groove 324 includes an inserting portion 3241 and a clamping portion 3242 that are interconnected. The clamping protrusion 614 is designed in an "L" shape, and the clamping portion 3242 is designed in an "L" shape. The clamping protrusion 614 is clamped with the clamping portion 3242 through the inserting portion 3241. During assembly, the clamping protrusion 614 is first inserted into the inserting portion 3241, and then the second side wall 612 is rotated to slide the clamping protrusion 614 from the inserting portion 3241 to the clamping portion 3242, and the clamping protrusion 614 is clamped with the clamping portion 3242 to achieve the connection between the connecting housing 610 and the partition plate 320. This clamping method can facilitate the disassembly of the connecting housing 610, so that the user can clean or replace the first sealing ring 620.

[0072] See attached Fig.10 A third sealing ring 650 is provided between the partition plate 320 and the second end wall 611 .

[0073] Specifically, a receiving groove 327 is provided below the partition plate 320, and the third sealing ring 650 is installed in the receiving groove 327. When the partition plate 320 is engaged with the second end wall 611, the third sealing ring 650 abuts against the second end wall 611. The third sealing ring 650 can improve the air tightness between the partition plate 320 and the second end wall 611, so that the vacuum pump 510 can be easily evacuated when the partition plate 320 is engaged with the second end wall 611.

[0074] Furthermore, the sealed cavity 70 includes a first cavity 710 and a second cavity 720 that are interconnected. The first cavity 710 is located above the second cavity 720. The radius of the first cavity 710 is smaller than the radius of the second cavity 720, so that the interior of the connection housing 610 is stepped. The first sealing ring 620 is arranged around the first cavity 710; the connection assembly 60 also includes a second sealing ring 640. The radius of the second sealing ring 640 is larger than the first sealing ring 620. The second sealing ring 640 is arranged around the second cavity 720. The second sealing ring 640 is used to abut against the outer wall of the Mason jar 10.

[0075] Specifically, the cross section of the second sealing ring 640 is designed in a “U” shape. The “U”-shaped second sealing ring 640 can increase the contact area with the Mason jar body 10 so that the second sealing ring 640 fits the Mason jar body 10 .

[0076] The mouth of the Mason jar 10 has two types: standard caliber and wide caliber. The first cavity 710 is adapted to the standard caliber Mason jar 10, and the second cavity 720 is adapted to the wide caliber Mason jar 10. When sealing the wide caliber Mason jar 10, the jar cover 20 is placed on the mouth of the Mason jar 10, and then when the Mason jar 10 is extended into the connecting shell 610, the jar cover 20 and the mouth of the jar are located in the second cavity 720, and then the vacuum pump 510 is started to evacuate the gas, and the gas in the second cavity 720 is discharged into the accommodating cavity 318 through the first cavity 710, the air hole 613, the vent hole 321, the first hole 521, the second hole 522 and the vacuum pump 510, and the pressure in the second cavity 720 is reduced, and the second sealed cavity 70 is attached to the Mason jar 10, so that the jar cover 20 is sealed to the mouth of the Mason jar 10. By dividing the sealing chamber 70 into a first chamber 710 and a second chamber 720, the device can be used to seal Mason jars 10 of two calibers, thereby improving the practicability of the device.

[0077] See attached Fig.10 A plurality of abutting portions 730 are provided in the sealing cavity 70 , and the abutting portions 730 are used to abut against the tank cover 20 .

[0078] In this embodiment, abutment portions 730 are provided on the inner wall of the first cavity 710 and the inner wall of the second cavity 720. When sealing Mason jar bodies 10 of different calibers, the abutment portions 730 abut against the jar cover 20 to prevent the jar cover 20 from shifting, thereby ensuring that the jar cover 20 and the jar mouth of the Mason jar body 10 are accurately fitted.

[0079] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A Mason jar sealing device for sealing a jar lid to a jar mouth of a Mason jar, characterized in that: It includes a mounting shell, a connecting assembly and a gas extraction and exhaust assembly; An air inlet is provided on the mounting shell; One end of the connection assembly is connected to the mounting housing, and the other end is used to connect to the Mason jar body. When in use, a sealed cavity is formed between the connection assembly and the Mason jar body, and the mouth of the Mason jar body is located in the sealed cavity; The exhaust gas assembly is mounted on the mounting shell, the exhaust gas assembly is connected to the air inlet and the sealing cavity, the exhaust gas assembly is used to extract the gas in the Mason jar so that the jar cover is sealed to the Mason jar, and is used to selectively open or close the air inlet.

2. A Mason jar sealing device according to claim 1, characterized in that: The mounting housing comprises a mounting cover and a partition plate; The mounting cover has a receiving cavity with an opening on one side, and the air inlet is provided on the mounting cover; The partition plate covers the opening of the accommodating cavity, the partition plate is connected to the connecting assembly, and a vent hole is provided on the partition plate, and the vent hole is connected to the sealing cavity; There is a gap between the partition plate and the mounting cover, and the accommodating cavity is connected to the outside through the gap; The air extraction and exhaustion assembly is located in the accommodating cavity, and the air extraction and exhaustion assembly is connected with the air inlet and the air vent.

3. A Mason jar sealing device according to claim 2, characterized in that: The gas extraction and exhaust assembly includes a vacuum pump, a three-way valve and a sealing member; The vacuum pump is installed in the accommodating cavity, and the vacuum pump is connected to the outside through the gap; The three-way valve is installed in the accommodating chamber, and the three-way valve comprises a first hole, a second hole and a third hole which are connected to each other, the first hole is connected to the vent hole, the second hole is connected to the vacuum pump, and the third hole is connected to the air inlet; The sealing member is installed at the air inlet, and is used to seal or open the air inlet.

4. A Mason jar sealing device according to claim 3, characterized in that: The first hole is connected to the vent hole through a flexible air tube, the second hole is connected to the vacuum pump through a flexible air tube, and the third hole is connected to the air inlet through a flexible air tube.

5. A Mason jar sealing device according to claim 3, characterized in that: The mounting cover comprises a first end wall and a first side wall extending downward from the first end wall, wherein the first end wall and the first side wall enclose a receiving cavity with a bottom opening; The partition plate is connected to the first end wall. The partition plate is arranged opposite to the first end wall. The air inlet is opened on the first end wall.

6. A Mason jar sealing device according to claim 3, characterized in that: The mounting cover comprises a first end wall and a first side wall extending downward from the first end wall, wherein the first end wall and the first side wall enclose a receiving cavity with a bottom opening; The partition plate is connected to the first end wall, the partition plate is arranged opposite to the first end wall, and the air inlet is opened on the first side wall.

7. A Mason jar sealing device according to claim 5 or 6, characterized in that: The vacuum pump is installed on the first end wall, and the vent hole is arranged near the center of the partition plate or at the center of the partition plate.

8. A Mason jar sealing device according to claim 5 or 6, characterized in that: A battery compartment and a control switch are provided on the first end wall. The battery compartment is used to install batteries, the batteries are used to power the vacuum pump, and the control switch is used to control the on and off of the vacuum pump circuit.

9. A Mason jar sealing device according to claim 7, characterized in that: The first end wall is provided with a plurality of mounting plates, and the vacuum pump is fixed on the mounting plates by screws.

10. A Mason jar sealing device according to claim 5, characterized in that: The first end wall is provided with a positioning boss, the partition plate is provided with a connecting boss, and the connecting boss is connected to the positioning boss by screws.

11. A Mason jar sealing device according to claim 2, characterized in that: The connecting assembly comprises a connecting housing and a first sealing ring; The connecting shell is installed at the bottom of the partition plate; The first sealing ring is mounted on the connecting shell. When in use, the first sealing ring is used to abut against the outer wall of the Mason jar, thereby forming the sealed cavity together with the partition plate.

12. A Mason jar sealing device according to claim 11, characterized in that: The top of the connecting shell is tightly connected to the partition plate; The connection assembly also includes a sealing ring, which is connected to the bottom of the partition plate. There is an installation gap between the sealing ring and the inner wall of the connection shell. One end of the first sealing ring is placed in the installation gap, and the other end of the first sealing ring is used to abut against the outer wall of the Mason jar.

13. A Mason jar sealing device according to claim 11, characterized in that: The connecting shell includes a second end wall and a second side wall extending downward from the second end wall, the second end wall is connected to the partition plate, and an air hole is formed on the second end wall, and the air hole is connected to the vent hole; The connection assembly also includes a sealing ring, which is integrally arranged on the second end wall. There is an installation gap between the sealing ring and the second side wall. One end of the first sealing ring is placed in the installation gap, and the other end of the sealing ring is used to abut against the outer wall of the Mason jar.

14. A Mason jar sealing device according to claim 11, characterized in that: The partition plate is connected to the connection shell by screws.

15. A Mason jar sealing device according to claim 13, characterized in that: The partition plate is provided with a clamping groove, and the second end wall is provided with a clamping protrusion matched with the clamping groove.

16. A Mason jar sealing device according to claim 15, characterized in that: The clamping groove comprises an inserting portion and a clamping portion which are interconnected, the clamping protrusion is designed in an "L" shape, the clamping portion is designed in an "L" shape, and the clamping protrusion is clamped with the clamping portion through the inserting portion.

17. A Mason jar sealing device according to claim 15, characterized in that: The sealed cavity comprises a first cavity and a second cavity which are interconnected, the first cavity is located above the second cavity, and the radius of the first cavity is smaller than the radius of the second cavity; The first sealing ring is arranged around the first cavity; The connection assembly further includes a second sealing ring, the radius of the second sealing ring is larger than that of the first sealing ring, the second sealing ring is arranged around the second cavity, and the second sealing ring is used to abut against the outer wall of the Mason jar.

18. A Mason jar sealing device according to claim 17, characterized in that: A plurality of abutment parts are arranged in the sealing cavity, and the abutment parts are used to abut against the tank cover.

19. A Mason jar sealing device according to claim 18, characterized in that: Abutment portions are provided on the inner wall of the first cavity and the inner wall of the second cavity.

20. The Mason jar sealing device of claim 15, wherein: A third sealing ring is provided between the partition plate and the second end wall.

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