Meisson tank sealing device

Abstract

The Meisson tank sealing device comprises a main machine body, the main machine body is provided with a containing cavity, a first sleeving and holding opening and a second sleeving and holding opening, the first sleeving and holding opening is formed in one side of the main machine body, the second sleeving and holding opening is formed in the other side of the main machine body, and a first air exhaust hole is formed in the bottom of the first sleeving and holding opening; a first air suction hole is formed in the bottom of the first sleeving opening, a second air suction hole is formed in the bottom of the second sleeving opening, the containing cavity is formed between the first sleeving opening and the second sleeving opening, the control main board, the negative pressure pump and the battery are arranged in the containing cavity, the battery supplies power to the control main board, the control main board is electrically connected with the negative pressure pump, and the negative pressure pump is electrically connected with the negative pressure pump. And the negative pressure pump extracts air from the first sleeving opening through the first air extraction hole and extracts air from the second sleeving opening through the second air extraction hole. The sealing device for the Meisen tank is suitable for Meisen tanks with two different calibers and Meisen tanks with two forms of wide opening and narrowing, and sealing is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of Mason jar sealing, and more specifically, to a Mason jar sealing device. Background Art

[0002] A Mason Jar is a glass jar with a threaded iron lid, which has good sealing performance and is used for storing dry food or pickling food. Mason jars generally come in two calibers: wide mouth and standard mouth.

[0003] A Mason jar sealer is used to seal Mason jars. Traditional Mason jar sealers need to be externally connected to a vacuum device and can only seal Mason jars of one caliber.

[0004] Chinese Patent Document CN216375472U discloses a Mason jar vacuum adapter, which includes an adapter main body. A partition member is provided in the middle of the adapter main body. The partition member is used to divide the adapter main body into a first cover body and a second cover body. The first cover body has a first cover-shaped inner cavity, and the second cover body has a second cover-shaped inner cavity. The diameters of the openings of the first cover body and the second cover body are different. A through hole communicating the first cover-shaped inner cavity and the second cover-shaped inner cavity is provided on the partition member. This Mason jar vacuum adapter can respectively adapt to Mason jars with two different bottle mouth diameters through the divided first cover body and second cover body, but it needs to be externally connected to a vacuum pumping device.

[0005] Chinese Patent Document CN115367295A discloses a multi-functional Mason jar sealing device for sealing a first Mason jar body and a second Mason jar body with different diameters. The multi-functional Mason jar sealing device includes a Mason jar main body and a sealing converter. The Mason jar main body includes a partition board and a first sleeve located on one side of the partition board. A receiving cavity is provided on the other side of the partition board, and a vacuum pump is arranged in the receiving cavity. The first sleeve is used for installing the first Mason jar body. When the first Mason jar body extends into the first sleeve, the vacuum pump evacuates the air in the first Mason jar body and the first sleeve to seal the first Mason jar body to the Mason jar main body. Both ends of the sealing converter are respectively provided with a connecting part detachably connected to the first sleeve and a second sleeve matching the second Mason jar body. A circular cover is arranged in the second sleeve. When the second Mason jar body extends into the second sleeve, the vacuum pump evacuates the air in the second Mason jar body and the second sleeve to connect the second Mason jar body and the second sleeve, and then seals the second Mason jar body to the Mason jar main body and seals the second Mason jar body and the circular cover. The multi-functional Mason jar sealing device seals the first Mason jar through the first sleeve and seals the second Mason jar through the sealing converter connected to the first sleeve, realizing the function of sealing the first Mason jar body and the second Mason jar body with different diameters. However, its structure is complex, and a sealing converter needs to be installed, and the operation is cumbersome.

[0006] Chinese Patent Document CN221138784U discloses a vacuum pump applicable to large and small bottle mouths, including a main body. A vacuum pump, a main board and a first electromagnetic valve are arranged inside the main body. A control interface is arranged on the top surface of the main body. The control interface, the vacuum pump and the first electromagnetic valve are respectively electrically connected to the main board. A socket cavity is arranged at the bottom of the main body. A first socket for sleeving a small-mouth Mason jar is formed at the bottom of the socket cavity, and a second socket for sleeving a large-mouth Mason jar is formed at the mouth of the socket cavity. At least one exhaust gap communicating with the inside is arranged on the outer shell of the main body. At least two guiding through holes are arranged at the position of the first socket of the main body. The vacuum pump and the first electromagnetic valve are respectively butted against corresponding guiding through holes, so that the vacuum pump and the first electromagnetic valve are both communicated with the socket cavity. The vacuum pump applicable to large and small bottle mouths seals two specifications of Mason jars with different diameters by using the first socket and the second socket. However, the first socket is located at the bottom of the socket cavity, which can seal a wide-mouth bottle Mason jar with a small diameter, but is not applicable to a Mason jar with a narrow small diameter. Summary of the Invention

[0007] The purpose of the present invention is to provide a Mason jar sealing device applicable to two Mason jars with different diameters and applicable to both wide-mouth and narrow-mouth forms of Mason jars, which is convenient to seal.

[0008] The technical solution adopted by the Mason jar sealing device disclosed in the present invention is as follows:

[0009] A Mason jar sealing device includes a main body. The main body is provided with a cavity, a first holding port and a second holding port. The first holding port is arranged on one side of the main body, and the second holding port is arranged on the other side of the main body. A first air extraction hole is provided at the bottom of the first holding port, and a second air extraction hole is provided at the bottom of the second holding port. The device further includes a control main board, a negative pressure pump and a battery. The cavity is arranged between the first holding port and the second holding port. The control main board, the negative pressure pump and the battery are arranged in the cavity. The battery supplies power to the control main board. The control main board is electrically connected to the negative pressure pump. The negative pressure pump extracts air for the first holding port through the first air extraction hole and extracts air for the second holding port through the second air extraction hole.

[0010] As a preferred solution, the negative pressure pump includes a first negative pressure pump and a second negative pressure pump. The air inlet of the first negative pressure pump is communicated with the first air extraction hole, and the air inlet of the second negative pressure pump is communicated with the second air extraction hole.

[0011] As a preferred solution, the Mason jar sealing device further includes a solenoid valve. The solenoid valve is provided with an air inlet, a first exhaust port and a second exhaust port. The air inlet of the first negative pressure pump is communicated with the first air extraction hole at the bottom of the first holding port, and the air inlet of the second negative pressure pump is communicated with the second air extraction hole at the bottom of the second holding port. The first negative pressure pump and the second negative pressure pump are both provided with exhaust ports. The exhaust ports of the first negative pressure pump and the second negative pressure pump and the air inlet of the solenoid valve are exposed in the cavity.

[0012] As a preferred solution, a key hole is provided on the side wall of the main body, and an operation key is provided on the control main board. The operation key on the control main board extends out of the key hole.

[0013] As a preferred solution, the Mason jar sealing device further includes a gravity sensor. The gravity sensor is electrically connected to the control main board. The gravity sensor is used to detect the placement direction of the Mason jar sealing device. The control main board controls the first negative pressure pump, the second negative pressure pump and the solenoid valve according to the detected placement direction of the Mason jar sealing device.

[0014] As a preferred solution, the Mason jar sealing device further includes a first solenoid valve and a second solenoid valve. The first solenoid valve is provided with a first air extraction port, a first air suction port, and a second air suction port. The second solenoid valve is provided with a first air inlet, a first air exhaust port, and a second air exhaust port. The air suction port of the negative pressure pump is communicated with the first air extraction port of the first solenoid valve. The first air suction port of the first solenoid valve is communicated with the first air extraction hole at the bottom of the first holding port. The second air suction port of the first solenoid valve is communicated with the second air extraction hole at the bottom of the second holding port. The air exhaust port of the negative pressure pump is communicated with the first air inlet of the second solenoid valve. The bottom of the first holding port is provided with a first air exhaust hole. The bottom of the second holding port is provided with a second air exhaust hole. The first air exhaust port of the second solenoid valve is communicated with the first air exhaust hole at the bottom of the first holding port. The second air exhaust port of the second solenoid valve is communicated with the second air exhaust hole at the bottom of the second holding part.

[0015] As a preferred solution, the main body includes a housing and a sleeve. The first holding port is provided on one side of the housing. The sleeve is provided on the other side of the housing. The bottom of the sleeve and the other side of the housing or the sleeve form the second holding port. The cavity is provided between the bottom of the sleeve and the bottom of the first holding port.

[0016] As a preferred solution, the inner edges of the first holding port and the second holding port are made of soft materials.

[0017] As a preferred solution, the inner side of the first holding port is provided with a first clamping groove, and a first sealing ring is embedded in the first clamping groove. The inner side of the second holding port is provided with a second clamping groove, and a second sealing ring is embedded in the second clamping groove.

[0018] As a preferred solution, the Mason jar sealing device further includes a gravity sensor. The gravity sensor is electrically connected to the control main board. The gravity sensor is used to detect the placement direction of the Mason jar sealing device. The control main board controls the negative pressure pump, the first solenoid valve, and the second solenoid valve according to the detected placement direction of the Mason jar sealing device.

[0019] The beneficial effects of a Mason jar sealing device disclosed by the present invention are as follows: The first holding port is adapted to a Mason jar with one diameter, and the second holding port is adapted to a Mason jar with another diameter. Since the first holding port and the second holding port are respectively provided at both ends of the main body, the depths of the first holding port and the second holding port are relatively shallow, which is applicable to Mason jars in both wide-mouth and narrowed forms. Moreover, the control main board controls the negative pressure pump to extract air for the first holding port through the first air extraction hole and extract air for the second holding port through the second air extraction hole, making the sealing convenient. Description of the Drawings

[0020] Figure 1 is a three-dimensional schematic diagram of the Mason jar sealing device in Embodiment 1 of the present invention.

[0021] Figure 2 This is an exploded view of the Mason jar sealing device according to the first embodiment of the present invention.

[0022] Figure 3 This is a three-dimensional view of the Mason jar sealing device according to the first embodiment of the present invention from another angle.

[0023] Figure 4 This is a connection diagram of the negative pressure pump, the first solenoid valve, the second solenoid valve, the first holding port, and the second holding port in the Mason jar sealing device according to the first embodiment of the present invention.

[0024] Figure 5 This is another connection diagram of the negative pressure pump, the first solenoid valve, the second solenoid valve, the first holding port, and the second holding port in the Mason jar sealing device according to the first embodiment of the present invention.

[0025] Figure 6 This is an exploded view of the Mason jar sealing device according to the second embodiment of the present invention.

[0026] Figure 7 This is a connection diagram of the negative pressure pump, the first solenoid valve, the second solenoid valve, the first holding port, and the second holding port in the Mason jar sealing device according to the second embodiment of the present invention. Detailed implementation manners

[0027] The present invention will be further described and explained below in conjunction with specific embodiments and the accompanying drawings of the specification:

[0028] Embodiment 1

[0029] Refer to Figures 1 to 3 , a Mason jar sealing device, comprising a main body, a control main board 50, a negative pressure pump 30, a battery 40, a first solenoid valve 60, and a second solenoid valve 70.

[0030] Please refer to Figure 2 and Figure 3 , the main body includes a housing 10 and a sleeve 20. The housing 10 is provided with a peripheral wall 11, and a keyhole 111 is provided on the peripheral wall 11. One end of the housing 10 is provided with a first holding port. A first air extraction hole 121 and a first exhaust hole 122 are provided on the bottom 12 of the first holding port. On the other side of the bottom 12 of the first holding port, a plurality of stud bolts 13 are provided, and threaded holes are provided on the stud bolts 13. A first clamping groove 14 is provided inside the first holding port, and a first sealing ring 80 is embedded in the first clamping groove 14. A convex portion 81 is provided on the first sealing ring 80, and a concave portion 141 is provided at the end of the first holding port. The convex portion 81 of the first sealing ring 80 is arranged in the concave portion 141.

[0031] Please refer to Figure 1 and Figure 2, the sleeve 20 is provided at the other end of the housing 10. A second air extraction hole 211 and a second air exhaust hole 212 are provided in the middle of the bottom 21 of the sleeve 20. A fixing post 23 corresponding to the stud 13 is provided at the edge of the other side of the bottom 21 of the sleeve 20. A through hole 213 is provided on the fixing post 23 and penetrates through the bottom 21 of the sleeve 20. The sleeve 20 is fixed to the housing 10 by a screw passing through the through hole 213 of the fixing post 23 and the threaded hole on the stud 13. A cavity is provided between the bottom 21 of the sleeve 20, the bottom 12 of the first holding port, and the peripheral wall 11 of the housing 10. The control main board 50, the negative pressure pump 30, the battery 40, the first solenoid valve 60, and the second solenoid valve 70 are arranged in the cavity. The battery 40 is used to supply power to the control main board 50. The negative pressure pump 30, the first solenoid valve 60, and the second solenoid valve 70 are electrically connected to the control main board 50. The bottom 21 of the sleeve 20 and the peripheral wall 11 at the other end of the housing 10 form a second holding port. In this embodiment, the side wall 22 of the sleeve 20 and the bottom 21 of the sleeve 20 can form the second holding port by themselves. The bottom 21 of the sleeve 20 is the bottom of the second holding port. A second card slot 221 is provided on the inner side wall of the sleeve 20. A second sealing ring 90 is embedded in the second card slot 221. A boss 91 is provided on the second sealing ring 90. A groove 222 is provided at the end of the side wall 22 of the sleeve 20. The boss 91 is arranged in the groove 222.

[0032] An operation key 51 is provided on the control main board 50, and the operation key 51 extends out of the key hole 111 on the peripheral wall 11.

[0033] Please refer to Figure 4 , the first solenoid valve 60 is provided with an air extraction port 61, a first air suction port 62, and a second air suction port 63. The second solenoid valve 70 is provided with an air inlet 71, a first air exhaust port 72, and a second air exhaust port 73. The air suction port of the negative pressure pump 30 is communicated with the air extraction port 61 of the first solenoid valve 60. The first air suction port 62 of the first solenoid valve 60 is communicated with the first air extraction hole 121 at the bottom 12 of the first holding port. The second air suction port 63 of the first solenoid valve 60 is communicated with the second air extraction hole 211 at the bottom 21 of the second holding port. The exhaust port of the negative pressure pump 30 directly discharges the gas sucked by the air suction port of the negative pressure pump 30 into the cavity. The first air exhaust port 72 of the second solenoid valve 70 is communicated with the first air exhaust hole 122 at the bottom 12 of the first holding port. The second air exhaust port 73 of the second solenoid valve 70 is communicated with the second air exhaust hole 212 at the bottom 21 of the second holding part. The air inlet of the second solenoid valve 70 is communicated with the cavity.

[0034] Place the Mason jar lid of the corresponding caliber on the first set of holding ports. When the first set of holding ports hold the Mason jar of the corresponding caliber, operate the operation key 51 on the operation control main board 50 to make the negative pressure pump 30 start to work. The suction port of the negative pressure pump 30 is used to pump air for the Mason jar held by the first set of holding ports through the air extraction port 61 of the first electromagnetic valve 60, the first suction port 62 of the first electromagnetic valve 60, and the first air extraction hole 121 at the bottom of the first set of holding ports 12, and then discharged into the cavity through the exhaust port of the negative pressure pump 30. The gas in the cavity is discharged through the air inlet 71 of the second electromagnetic valve 70, the second exhaust port 73 of the second electromagnetic valve 70, and the second exhaust hole 212 at the bottom of the second set of holding parts 21. Part of the gas in the cavity is also discharged through the housing 10. Since the Mason jar held by the first set of holding ports is in negative pressure, under the action of the gravity of the Mason jar lid, the Mason jar lid is buckled on the Mason jar. Since the inside of the Mason jar is in negative pressure, the Mason jar lid is firmly adsorbed on the Mason jar. Turn off the negative pressure pump 30 and connect the cavity with the first set of holding ports through the second electromagnetic valve 70. Since the first set of holding ports is in negative pressure, the air in the cavity enters the first set of holding ports through the air inlet 71 of the second electromagnetic valve 70, the first exhaust port 72 of the second electromagnetic valve 70, and the first exhaust hole 122 at the bottom of the first set of holding ports. At this time, the air pressure between the first set of holding ports and the Mason jar lid increases, making it easy to take out the sealed Mason jar. Similarly, first place the Mason jar lid of the corresponding caliber on the second set of holding ports. When the second set of holding ports hold the Mason jar of the corresponding caliber, operate the operation key on the operation control main board 50 to make the suction port of the negative pressure pump 30 pump air for the Mason jar held by the second set of holding ports through the air extraction port 61 of the first electromagnetic valve 60, the second suction port 63 of the first electromagnetic valve 60, and the second air extraction hole 211 at the bottom of the second set of holding ports 21, and then discharged into the cavity through the exhaust port of the negative pressure pump 30. The gas in the cavity is discharged to the first exhaust hole 122 at the bottom of the first set of holding ports 12 through the air inlet 71 of the second electromagnetic valve 70 and the first exhaust port 72 of the second electromagnetic valve 70. Since the Mason jar held by the second set of holding ports is in negative pressure, under the action of the gravity of the Mason jar lid, the Mason jar lid is buckled on the Mason jar. Since the inside of this Mason jar is in negative pressure, the Mason jar lid is firmly adsorbed on the Mason jar. Turn off the negative pressure pump 30 and connect the cavity with the second set of holding ports through the second electromagnetic valve 70. Since the second set of holding ports is in negative pressure, the air in the cavity enters the second set of holding ports through the air inlet 71 of the second electromagnetic valve 70, the second exhaust port 73 of the second electromagnetic valve 70, and the second exhaust hole 212 at the bottom of the second set of holding parts 21. At this time, the air pressure between the second set of holding ports and the Mason jar lid increases, making it easy to take out the sealed Mason jar. Since the first set of holding ports and the second set of holding ports are respectively arranged at both ends of the main body of the machine, and the depths of the first set of holding ports and the second set of holding ports are relatively shallow, they are suitable for Mason jars in two forms: wide mouth and narrowed mouth. By controlling the main board 50 to control the negative pressure pump 30 to pump air, the operation is convenient.

[0035] In the above embodiments, the exhaust port of the negative pressure pump 30 and the intake port of the second solenoid valve 70 are exposed in the cavity. In order to seal the Mason jar and facilitate the removal of the sealed Mason jar, there are other connection methods for the negative pressure pump 30, the first solenoid valve 60, and the second solenoid valve 70. Please refer to Figure 5 , the suction port of the negative pressure pump 30 is communicated with the air extraction port 61 of the first solenoid valve 60, the first suction port 62 of the first solenoid valve 60 is communicated with the first air extraction hole 121 at the bottom of the first socket 12, the second suction port 63 of the first solenoid valve 60 is communicated with the second air extraction hole 211 at the bottom of the second socket 21, the exhaust port of the negative pressure pump 30 is communicated with the intake port 71 of the second solenoid valve 70, the first exhaust port 72 of the second solenoid valve 70 is communicated with the first exhaust hole 122 at the bottom of the first socket 12, and the second exhaust port 73 of the second solenoid valve 70 is communicated with the second exhaust hole 212 at the bottom of the second socket part 21.

[0036] When sealing the Mason jar sleeved on the first holding port, operate the operation key 51 on the operation control main board 50 to make the negative pressure pump 30 start working. The suction port of the negative pressure pump 30 evacuates the air for the Mason jar sleeved on the first holding port through the air extraction port 61 of the first electromagnetic valve 60, the first suction port 62 of the first electromagnetic valve 60, and the first air extraction hole 121 at the bottom of the first holding port 12. The extracted gas is discharged through the exhaust port of the negative pressure pump 30, the air inlet 71 of the second electromagnetic valve 70, the second exhaust port 73 of the second electromagnetic valve 70, and the second exhaust hole 212 at the bottom of the second holding part 21. Also, part of the gas in the cavity is discharged through the housing 10. Since the Mason jar sleeved on the first holding port is in negative pressure, under the action of the gravity of the Mason jar lid, the Mason jar lid is buckled on the Mason jar. Since the inside of the Mason jar is in negative pressure, the Mason jar lid is firmly adsorbed on the Mason jar. When it is necessary to easily remove the Mason jar at the first holding port, the suction port of the negative pressure pump 30 inhales air through the air extraction port 61 of the first electromagnetic valve 60, the second suction port 63 of the first electromagnetic valve 60, and the second air extraction hole 211 at the bottom of the second holding port 21, and discharges the gas through the exhaust port of the negative pressure pump 30, the air inlet 71 of the second electromagnetic valve 70, the first exhaust port 72 of the second electromagnetic valve 70, and the first exhaust hole 122 at the bottom of the first holding part. At this time, the air pressure between the first holding port and the Mason jar lid increases, and it is easy to remove the sealed Mason jar. Then, turn off the negative pressure pump 30. Similarly, when sealing the Mason jar sleeved on the second holding port, operate the operation key on the operation control main board 50 to make the suction port of the negative pressure pump 30 evacuate the air for the Mason jar sleeved on the second holding port through the air extraction port 61 of the first electromagnetic valve 60, the second suction port 63 of the first electromagnetic valve 60, and the second air extraction hole 211 at the bottom of the second holding port 21. The gas is discharged through the exhaust port of the negative pressure pump 30, the air inlet 71 of the second electromagnetic valve 70, and the first exhaust port 72 of the second electromagnetic valve 70 to the first exhaust hole 122 at the bottom of the first holding port 12. Since the Mason jar sleeved on the second holding port is in negative pressure, under the action of the gravity of the Mason jar lid, the Mason jar lid is buckled on the Mason jar. Since the inside of this Mason jar is in negative pressure, the Mason jar lid is firmly adsorbed on the Mason jar. When it is necessary to remove this sealed Mason jar, the suction port of the negative pressure pump 30 inhales air through the air extraction port 61 of the first electromagnetic valve 60, the first suction port 62 of the first electromagnetic valve 60, and the first air extraction hole 121 at the bottom of the first holding port 12, and discharges the gas through the exhaust port of the negative pressure pump 30, the air inlet 71 of the second electromagnetic valve 70, the second exhaust port 73 of the second electromagnetic valve 70, and the second exhaust hole 212 at the bottom of the second holding part 21 into the second holding port. At this time, the air pressure between the second holding port and the Mason jar lid increases, and it is easy to remove this sealed Mason jar. Although the connection method of the negative pressure pump 30, the first electromagnetic valve 60, and the second electromagnetic valve 70 can still seal the Mason jar sleeved on the first holding port or the second holding port and facilitate the removal of the Mason jar with a sealed thickness, the working frequency of the negative pressure pump 30 is higher and it consumes more power.

[0037] In this embodiment, in order to enable the control main board 50 to automatically control, a gravity sensor is further provided in the cavity of this embodiment. The gravity sensor is electrically connected to the control main board. The gravity sensor is used to sense the placement direction of the main body, that is, whether the first holding port is at the bottom or the second holding port is at the bottom. By controlling the opening and closing of the first solenoid valve 60 and the second solenoid valve 70 through the control main board, the negative pressure pump 30 is used to pump air to the first holding port or the second holding port respectively, so as to achieve automatic control.

[0038] In the above embodiment, the first sealing ring 80 embedded in the first card slot 14 on the inner side of the first holding port is used to seal the mouth of the Mason jar placed in the first holding port. The second sealing ring 90 embedded in the second card slot 221 on the inner side of the second holding port is used to seal the mouth of the Mason jar placed in the second holding port. The first sealing ring and the second sealing ring can be respectively replaced by soft materials provided on the inner edges of the first holding port and the second holding port. Since the soft materials can be deformed to adapt to the size of the mouth of the Mason jar, the effect of sealing the mouth of the Mason jar can also be achieved.

[0039] Embodiment Two

[0040] Please refer to Figure 6 , a Mason jar sealing device, including a main body, a control main board 50, a first negative pressure pump 30, a second negative pressure pump 100, a battery 40 and a solenoid valve 70.

[0041] The main body includes a housing 10 and a sleeve 20. The housing 10 is provided with a peripheral wall 11. A keyhole 111 is provided on the peripheral wall 11. One end of the housing 10 is provided with a first holding port. A first air extraction hole 121 and a first air exhaust hole 122 are provided at the bottom of the first holding port. On the other side of the bottom of the first holding port, a plurality of studs 13 are provided. Threaded holes are provided on the studs 13. A first card slot is provided on the inner side of the first holding port. A first sealing ring 80 is embedded in the first card slot. A convex portion 81 is provided on the first sealing ring 80. A concave portion is provided at the end of the first holding port. The convex portion 81 of the first sealing ring 80 is arranged in the concave portion.

[0042] The sleeve 20 is provided at the other end of the housing 10. In the middle of the bottom 21 of the sleeve 20, there are a second air extraction hole 211 and a second exhaust hole 212. At the edge of the other side of the bottom 21 of the sleeve 20, there is a fixing post 23 corresponding to the stud 13. The fixing post 23 is provided with a through hole and penetrates through the bottom 21 of the sleeve 20. The sleeve 20 is fixed to the housing 10 by a screw passing through the through hole of the fixing post 23 and the threaded hole on the stud 13. There is a cavity between the bottom 21 of the sleeve 20, the bottom of the first holding port, and the peripheral wall 11 of the housing 10. The control main board 50, the first negative pressure pump 30, the second negative pressure pump 100, the battery 40, and the solenoid valve 70 are arranged in the cavity. The battery 40 is used to supply power to the control main board 50. The first negative pressure pump 30, the second negative pressure pump 100, and the solenoid valve 60 are electrically connected to the control main board 50. The bottom 21 of the sleeve 20 and the peripheral wall 11 at the other end of the housing 10 form a second holding port. In this embodiment, the side wall 22 of the sleeve 20 and the bottom 21 of the sleeve 20 can form the second holding port by themselves. The bottom 21 of the sleeve 20 is the bottom of the second holding port. The inner side wall of the sleeve 20 is provided with a second card slot 221. The second card slot 221 is embedded with a second sealing ring 90. The second sealing ring 90 is provided with a boss 91. The end of the side wall 22 of the sleeve 20 is provided with a groove 222. The boss 91 is arranged in the groove 222.

[0043] An operation key 51 is provided on the control main board 50. The operation key 51 extends out of the key hole 111 on the peripheral wall 11.

[0044] The solenoid valve 70 is provided with an air inlet 71, a first exhaust port 72, and a second exhaust port 73. The suction port of the first negative pressure pump 30 is communicated with the first air extraction hole 121 at the bottom of the first holding port. The suction port of the second negative pressure pump 100 is communicated with the second air extraction hole 211 at the bottom of the second holding port. The exhaust ports of the first negative pressure pump 30 and the second negative pressure pump 100 and the air inlet of the solenoid valve 70 are exposed in the cavity. The first exhaust port 72 of the solenoid valve 70 is communicated with the first exhaust hole 122 of the first holding port. The second exhaust port 73 of the solenoid valve is communicated with the second exhaust hole 212 of the second holding port.

[0045] When sealing the Mason jar sleeved on the first holding port, operate the operation key 51 on the operation control main board 50 to make the first negative pressure pump 30 start working. The suction port of the first negative pressure pump 30 evacuates the air in the Mason jar sleeved on the first holding port through the first air extraction hole 121 at the bottom of the first holding port, and discharges it into the cavity through the exhaust port of the negative pressure pump 30. The gas in the cavity is discharged through the air inlet 71 of the solenoid valve 70, the second exhaust port 73 of the solenoid valve 70, and the second exhaust hole 212 at the bottom of the second holding part 21. Part of the gas in the cavity is also discharged through the housing 10. Since the Mason jar sleeved on the first holding port is in negative pressure, under the action of the gravity of the Mason jar lid, the Mason jar lid is buckled on the Mason jar. Since the inside of the Mason jar is in negative pressure, the Mason jar lid is firmly adsorbed on the Mason jar. Then, turn off the first negative pressure pump 30 and connect the cavity with the first holding port through the solenoid valve 70. Since the first holding port is in negative pressure, the air in the cavity enters the first holding port through the air inlet 71 of the solenoid valve 70 and the first exhaust port 72 of the solenoid valve 70. At this time, the air pressure between the first holding port and the Mason jar lid increases, making it easy to take out the sealed Mason jar. Similarly, when sealing the Mason jar sleeved on the second holding port, operate the operation key on the operation control main board 50 to make the suction port of the second negative pressure pump 100 evacuate the air in the Mason jar sleeved on the second holding port through the second air extraction hole 211 at the bottom of the second holding port, and discharge it into the cavity through the exhaust port of the second negative pressure pump 100. The gas in the cavity is discharged through the air inlet 71 of the solenoid valve 70 and the first exhaust port 72 of the solenoid valve 70 to the first exhaust hole 122 at the bottom of the first holding port. Since the Mason jar sleeved on the second holding port is in negative pressure, under the action of the gravity of the Mason jar lid, the Mason jar lid is buckled on the Mason jar. Since the inside of this Mason jar is in negative pressure, the Mason jar lid is firmly adsorbed on the Mason jar. Then, turn off the second negative pressure pump 100 and connect the cavity with the second holding port through the solenoid valve 70. Since the second holding port is in negative pressure, the air in the cavity enters the second holding port through the air inlet 71 of the solenoid valve 70, the second exhaust port 73 of the solenoid valve 70, and the second exhaust hole 212 at the bottom of the second holding part 21. At this time, the air pressure between the second holding port and the Mason jar lid increases, making it easy to take out the sealed Mason jar, thus realizing the sealing of the Mason jars sleeved on the first holding port and the second holding port. Since the first holding port and the second holding port are respectively arranged at both ends of the main body of the machine, and the depths of the first holding port and the second holding port are relatively shallow, they are suitable for Mason jars with two forms of wide mouth and narrow mouth. The operation control main board 50 controls the first negative pressure pump 30 to evacuate and seal the Mason jar sleeved on the first holding port, and controls the second negative pressure pump 100 to evacuate and seal the Mason jar sleeved on the second holding port, which is convenient to operate.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A Mason jar sealing device, comprising a main body, the main body having a cavity, a first set of holding openings and a second set of holding openings, the first set of holding openings being arranged on one side of the main body, the second set of holding openings being arranged on the other side of the main body, the first set of holding openings having a first air extraction hole at the bottom, the second set of holding openings having a second air extraction hole at the bottom, characterized in that: It also includes a control mainboard, a negative pressure pump and a battery. The cavity is arranged between the first set of holding ports and the second set of holding ports. The control mainboard, the negative pressure pump and the battery are arranged in the cavity. The battery supplies power to the control mainboard. The control mainboard is electrically connected to the negative pressure pump. The negative pressure pump draws air for the first set of holding ports through the first suction hole and draws air for the second set of holding ports through the second suction hole.

2. The Mason jar sealing device of claim 1, wherein: The negative pressure pump comprises a first negative pressure pump and a second negative pressure pump, wherein the air suction port of the first negative pressure pump is communicated with the first air extraction hole, and the air suction port of the second negative pressure pump is communicated with the second air extraction hole.

3. The Mason jar sealing device of claim 2, wherein: It also includes a solenoid valve, which is provided with an air inlet, a first exhaust port and a second exhaust port. The air intake of the first negative pressure pump is connected to the first air extraction hole at the bottom of the first sleeve holding port, and the air intake of the second negative pressure pump is connected to the second air extraction hole at the bottom of the second sleeve holding port. The first negative pressure pump and the second negative pressure pump are both provided with exhaust ports, and the exhaust ports of the first negative pressure pump and the second negative pressure pump and the air inlet of the solenoid valve are exposed in the cavity.

4. The Mason jar sealing device of claim 3, wherein: The side wall of the main body is provided with a key hole, and the control main board is provided with an operation key, and the operation key on the control main board extends out of the key hole.

5. The Mason jar sealing device of claim 3, wherein: It also includes a gravity sensor, which is electrically connected to the control main board. The gravity sensor is used to detect the placement direction of the Mason jar sealing device. The control main board controls the first negative pressure pump, the second negative pressure pump and the solenoid valve according to the detected placement direction of the Mason jar sealing device.

6. The Mason jar sealing device of claim 1, wherein: It also includes a first solenoid valve and a second solenoid valve, the first solenoid valve is provided with an exhaust port, a first air intake port and a second air intake port, the second solenoid valve is provided with an air inlet, a first exhaust port and a second exhaust port, the exhaust port of the negative pressure pump is connected with the exhaust port of the first solenoid valve, the first air intake port of the first solenoid valve is connected with the first exhaust hole at the bottom of the first sleeve port, the second air intake port of the first solenoid valve is connected with the second exhaust hole at the bottom of the second sleeve port, the first sleeve port is provided with a first exhaust hole at the bottom, the second sleeve port is provided with a second exhaust hole at the bottom, the first exhaust port of the second solenoid valve is connected with the first exhaust hole at the bottom of the first sleeve port, and the second exhaust port of the second solenoid valve is connected with the second exhaust hole at the bottom of the second sleeve port.

7. The Mason jar sealing device of claim 6, wherein: The main body includes a shell and a sleeve, the first sleeve holding opening is arranged at one end of the shell, the sleeve is arranged at the other end of the shell, the bottom of the sleeve and the other end of the shell or the sleeve form a second sleeve holding opening, and the cavity is arranged between the bottom of the sleeve and the bottom of the first sleeve holding opening.

8. The Mason jar sealing device of claim 7, wherein: The inner edges of the first set of holding openings and the inner edges of the second set of holding openings are made of soft material.

9. The Mason jar sealing device of claim 7, wherein: A first clamping groove is provided on the inner side of the first sleeve holding opening, and a first sealing ring is embedded in the first clamping groove. A second clamping groove is provided on the inner side of the second sleeve holding opening, and a second sealing ring is embedded in the second clamping groove.

10. The Mason jar sealing device of claim 6, wherein: It also includes a gravity sensor, which is electrically connected to the control main board. The gravity sensor is used to detect the placement direction of the Mason jar sealing device. The control main board controls the negative pressure pump, the first solenoid valve and the second solenoid valve according to the detected placement direction of the Mason jar sealing device.

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