Sealing device

Abstract

The application discloses a sealing device, which comprises a base, a first fixing seat, a second fixing seat, a suction machine, a first sealing ring and a second sealing ring. The base is provided with a containing cavity, and opposite ends of the base are provided with a first opening and a second opening which are communicated with the containing cavity. The first fixing seat and the second fixing seat are respectively located at the first opening and the second opening, so that the containing cavity is divided into a first working groove, a second working groove and a third working groove. The first working groove is located at the first opening, the second working groove is located at the second opening, and the third working groove is located between the first fixing seat and the second fixing seat. The first fixing seat is provided with a first air hole, and the second fixing seat is provided with a second air hole. The suction machine is located in the third working groove and is communicated with the first air hole and the second air hole. The first sealing ring is connected with the first fixing seat in the first working groove. The second sealing ring is connected with the second fixing seat in the second working groove, and the inner diameter of the second sealing ring is larger than that of the first sealing ring.

Description

Technical Field

[0001] This invention relates to the technical field of sealing equipment, and more particularly to sealing equipment. Background Technology

[0002] Existing sealing equipment is widely used in the food and pharmaceutical industries to vacuum-seal containers, extending shelf life or ensuring sterility. Most common sealing devices employ a single sealing structure, adaptable only to specific container sizes, resulting in poor versatility. When users need to seal containers of different sizes or types, they often need to replace different sealing components or even the entire device, leading to cumbersome operations and increased costs. Furthermore, existing equipment often fails to adequately separate the sealing operation area from the vacuuming components in its structural design, making the sealing area susceptible to the effects of the vacuuming mechanism during operation, thus impacting sealing effectiveness and equipment lifespan. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides a sealing device comprising a base, a first fixed base, a second fixed base, a vacuum pump, a first sealing ring, and a second sealing ring. The base has a receiving cavity, and its opposite ends have a first opening and a second opening respectively communicating with the receiving cavity. The first fixed base and the second fixed base are located at the first opening and the second opening, respectively, dividing the receiving cavity into a first working groove, a second working groove, and a third working groove. The first working groove is located on the side of the first fixed base away from the second fixed base, the second working groove is located on the side of the second fixed base away from the first fixed base, and the third working groove is located between the first fixed base and the second fixed base. The first fixed base has a first vent hole, and the second fixed base has a second vent hole. The vacuum pump is located in the third working groove and communicates with both the first and second vent holes. The first sealing ring is located in the first working groove and connected to the first fixed base, and is used to fit a first Mason jar. The second sealing ring is located in the second working groove and connected to the second fixed base, and its inner diameter is larger than that of the first sealing ring, and is used to fit a second Mason jar.

[0004] The beneficial effects of this invention are as follows: Through the synergy of the above-mentioned technical features, this invention can effectively solve the technical problems in the prior art, such as poor adaptability of sealing equipment, low sealing efficiency, and unreasonable ventilation and extraction mechanism structures, and specifically achieves the following technical effects:

[0005] First, the base is provided with a receiving cavity, and a first port and a second port are provided at opposite ends of it, effectively ensuring the compactness of the equipment structure and the independence of the sealing space. By assembling a first fixed seat and a second fixed seat at each end, the receiving cavity is divided into a first working groove, a second working groove, and a third working groove, making different functional areas independent of each other, avoiding mutual interference, and improving the reliability of the sealing operation.

[0006] Secondly, the first and second fixed seats are respectively provided with a first vent and a second vent, and the air extractor is located in the third working slot and connected to both vents, enabling the extraction and discharge of gas in different working slots, thereby effectively improving sealing efficiency and adapting to different sealing requirements. The independent setting of the third working slot not only facilitates the installation and maintenance of the air extractor, but also prevents the air extractor from directly affecting the sealing area during operation, thus improving the service life and operational stability of the equipment.

[0007] Furthermore, the first and second sealing rings are located in the first and second working grooves, respectively, and are connected to their respective mounting bases. The first sealing ring is used to fit the first Mason jar, and the inner diameter of the second sealing ring is larger than that of the first sealing ring, used to fit the second Mason jar. By setting sealing rings of different specifications, the applicability of the equipment is not only expanded to accommodate containers of different sizes, solving the problems of limited compatibility and poor versatility of existing equipment, but also, with the cooperation of the sealing rings and mounting bases, the sealing effect is more reliable, effectively preventing gas leakage.

[0008] In summary, this invention, through the coordinated operation of a base, multiple fixed seats, multiple sealing rings, an air pump, and vent holes, can achieve efficient sealing of Mason jars of different specifications, improving the equipment's versatility, sealing reliability, and ease of operation. It significantly improves upon the shortcomings of existing technologies and has good potential for widespread application. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the sealing device provided in an embodiment of the present invention;

[0011] Figure 2 This is a cross-sectional schematic diagram of the sealing device provided in an embodiment of the present invention;

[0012] Figure 3 This is a schematic diagram of the structure of the base provided in an embodiment of the present invention;

[0013] Figure 4 This is a schematic diagram of the structure of the first fixing seat provided in an embodiment of the present invention from a first perspective;

[0014] Figure 5This is a schematic diagram of the first fixing base provided in an embodiment of the present invention from a second perspective. (Explanation of reference numerals:)

[0015] Sealing device 100, base 10, accommodating cavity 11, first working groove 12, second working groove 13;

[0016] Third working groove 14, fixing 15, fixing hole 16, positioning post 17, first groove 18;

[0017] Second groove 19, first fixed seat 20, first vent 201, first limiting groove 202, third groove 203; channel 204, first positioning groove 205, first base plate 21, surrounding plate 22, first limiting plate 23;

[0018] Second limiting plate 24, gap plate 25, first protrusion 26, second fixing seat 30, second vent hole 32; second limiting groove 34, material reduction groove 36, second positioning groove 38, second base plate 31, heightening part 33;

[0019] Second protrusion 35, vacuum pump 40, first sealing ring 50, first fixing part 51, first connecting part 52; first sealing part 53, first deformation cavity 54, second sealing ring 60, second fixing part 61;

[0020] Second connecting part 62, second sealing part 63, second deformation cavity 65, fixing ring 70, conversion head 80; first pipeline 91, second pipeline 92, main pipeline 93, commutator 94, pressure detector 95. Detailed Implementation

[0021] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, clearly and comprehensively demonstrating the technical solutions. It should be noted that the listed embodiments are only a part of the present invention, and not all possible implementations. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] Please see Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the sealing device provided in an embodiment of the present invention. Figure 2 This is a cross-sectional schematic diagram of the sealing device provided in an embodiment of the present invention.

[0023] This invention relates to a sealing device comprising: a base 10, a first fixed seat 20, a second fixed seat 30, a vacuum pump 40, a first sealing ring 50, and a second sealing ring 60. The base 10 has a receiving cavity 11, and its opposite ends have a first opening and a second opening respectively communicating with the receiving cavity 11. The first fixed seat 20 and the second fixed seat 30 are located at the first opening and the second opening, respectively, to divide the receiving cavity 11 into a first working groove 12, a second working groove 13, and a third working groove 14. The first working groove 12 is located on the side of the first fixed seat 20 away from the second fixed seat 30, and the second working groove 13 is located on the side of the second fixed seat 30 away from the first fixed seat 20. The third working groove 14 is located between the first fixed seat 20 and the second fixed seat 30. The first fixed seat 20 has a first vent hole 201, and the second fixed seat 30 has a second vent hole 32. The vacuum pump 40 is located in the third working groove 14 and is connected to the first vent hole 201 and the second vent hole 32 respectively. The first sealing ring 50 is located in the first working groove 12 and connected to the first fixed seat 20. The first sealing ring 50 is used to fit the first Mason jar. The second sealing ring 60 is located in the second working groove 13 and connected to the second fixed seat 30. The inner diameter of the second sealing ring 60 is larger than the inner diameter of the first sealing ring 50. The second sealing ring 60 is used to fit the second Mason jar.

[0024] By combining the above-mentioned technical features, this invention can effectively solve the technical problems in the prior art, such as poor adaptability of sealing equipment, low sealing efficiency, and unreasonable ventilation and extraction structure, and specifically achieves the following technical effects:

[0025] First, the base 10 is provided with a receiving cavity 11, and a first opening and a second opening are provided at opposite ends of it, effectively ensuring the compactness of the equipment structure and the independence of the sealing space. By assembling a first fixing seat 20 and a second fixing seat 30 at both ends respectively, the receiving cavity 11 is divided into a first working groove 12, a second working groove 13 and a third working groove 14, so that different functional areas are independent of each other, avoiding mutual interference and improving the reliability of the sealing operation.

[0026] Secondly, the first fixed base 20 and the second fixed base 30 are respectively provided with a first vent 201 and a second vent 32, and the vacuum pump 40 is located in the third working slot 14 and is connected to the two vents respectively, which can realize the extraction and discharge operation of gas in different working slots, thereby effectively improving the sealing efficiency and adapting to different sealing requirements. The independent setting of the third working slot 14 not only facilitates the installation and maintenance of the vacuum pump 40, but also prevents the vacuum pump 40 from directly affecting the sealing area during operation, thereby improving the service life and operational stability of the equipment.

[0027] Furthermore, the first sealing ring 50 and the second sealing ring 60 are located in the first working groove 12 and the second working groove 13, respectively, and are connected to their respective fixed seats. The first sealing ring 50 is used to fit the first Mason jar, and the inner diameter of the second sealing ring 60 is larger than that of the first sealing ring 50, and it is used to fit the second Mason jar. By setting sealing rings of different specifications, the applicability of the equipment is not only expanded to accommodate containers of different sizes, solving the problems of limited compatibility and poor versatility of existing equipment, but also, with the cooperation of the sealing rings and fixed seats, the sealing effect is more reliable, effectively preventing gas leakage.

[0028] In summary, the present invention, through the coordinated operation of the base 10, multiple fixed seats, multiple sealing rings, the vacuum pump 40, and the vent, can achieve efficient sealing of Mason jars of different specifications, improve the versatility, sealing reliability, and ease of operation of the equipment, significantly improve the shortcomings of the existing technology, and has good promotion and application value.

[0029] This embodiment, based on the above technical solution, specifically describes a sealing device for achieving multi-station sealing. The vacuum pump 40 is connected to a commutator 94 via a main pipeline 93. The commutator 94 is connected to a first pipeline 91 and a second pipeline 92. The first pipeline 91 is connected to a first vent 201, and the second pipeline 92 is connected to a second vent 32. The first vent 201 is connected to a first working groove 12, and the second vent 32 is connected to a second working groove 13.

[0030] In practical applications, if a sealing operation is required for the first Mason jar in the first working tank 12, the commutator 94 is controlled to open the first pipeline 91 and close the second pipeline 92. At this time, the vacuum pump 40 connects the first vent 201 to the outside through the main pipeline 93, the commutator 94, and the first pipeline 91, thereby evacuating air from the first working tank 12. Conversely, if a sealing operation is required for the second Mason jar in the second working tank 13, the commutator 94 is switched to open the second pipeline 92 and close the first pipeline 91. At this time, the vacuum pump 40 connects to the second vent 32 through the main pipeline 93, the commutator 94, and the second pipeline 92, thereby evacuating and sealing the second working tank 13.

[0031] This technical solution achieves selective air extraction and sealing of 40 different working slots by setting up a commutator 94 and independent pipelines between the main pipeline 93 and multiple working slots. Compared with the traditional structure that can only operate at a single station, this solution can flexibly switch the working slots to be air-sealed, greatly improving the utilization rate and working efficiency of the equipment.

[0032] Specifically, by switching the commutator 94, cross-ventilation during the evacuation process can be effectively avoided, ensuring that only the target working tank is sealed each time, thus improving sealing reliability and yield. At the same time, it simplifies the pipeline switching process, reduces manual intervention, and lowers the probability of errors. Through this structure, the technical problems of complex switching, low efficiency, and unreliable sealing in existing sealing equipment in multi-station applications are effectively solved, thereby achieving efficient and reliable multi-station sealing operations.

[0033] This embodiment, in conjunction with the above technical solution, specifically discloses a sealing device with automatic pressure detection and control functions. In its implementation, a pressure detector 95 is installed on the main pipeline 93, capable of detecting the pressure within the main pipeline 93 in real time. When the device is operating, the vacuum pump 40 starts, evacuating the sealing station through the main pipeline 93. When the pressure detector 95 detects that the pressure within the main pipeline 93 reaches a preset sealing threshold, the pressure detector 95 sends a control signal to automatically cut off the power supply to the vacuum pump 40 or control it to stop operating. This avoids over-evacuation, ensures that the sealing tank reaches the ideal sealing pressure, and protects the vacuum pump 40, extending its service life.

[0034] This technical solution, by installing a pressure detector 95 on the main pipeline 93, enables real-time monitoring of pressure changes during the sealing process. When the pressure reaches a preset threshold, the pump 40 can be automatically stopped, avoiding manual intervention and misoperation.

[0035] This structure effectively solves the problem of insufficient or excessive air extraction that may occur in existing sealing equipment due to the lack of automatic pressure detection and control. Through automated pressure control, it ensures a constant and ideal sealing pressure for each sealing operation, improving sealing consistency and product qualification rate. Simultaneously, the automatic shutdown of the air extraction fan 40 reduces energy consumption, minimizes equipment wear, and enhances equipment safety and reliability, thereby achieving efficient and precise sealing operations.

[0036] Please see Figures 1 to 3 As shown, Figure 3 This is a schematic diagram of the structure of the base 10 provided in an embodiment of the present invention.

[0037] A fixing post 15 protrudes from the inner wall of the base 10, and a fixing hole 16 is provided for fixing. The opposite ends of the fixing post 15 abut against the first fixing seat 20 and the second fixing seat 30 respectively. Fasteners pass through the first fixing seat 20 and the fixing hole 16 for connection, thus enabling a detachable connection. Fasteners also pass through the second fixing seat 30 and the fixing hole 16 for connection, thus enabling a detachable connection. The fasteners can be screws, hot melt pins, etc.

[0038] This technical solution utilizes a protruding fixing post 15 on the inner wall of the base 10, with fixing holes 16 formed in the fixing post 15. The first fixing seat 20 and the second fixing seat 30 respectively abut against the two ends of the fixing post 15. Fasteners (such as screws, thermoplastic anchors, etc.) pass through the first fixing seat 20 / second fixing seat 30 and the fixing holes 16 for connection, achieving detachable and reliable assembly of the various structural parts. The synergistic effect of these technical features brings the following technical benefits:

[0039] First, the fixing post 15 is integrally formed or firmly connected to the base 10, which effectively improves the overall strength and stability of the structure and provides a solid installation benchmark for the installation of the fixing seats at both ends. The setting of the fixing post 15 ensures that the first fixing seat 20 and the second fixing seat 30 can be accurately positioned and abut against both ends of the fixing post 15, thereby ensuring the coaxiality and tightness of each component during assembly and effectively avoiding the problem of component misalignment or loosening.

[0040] Secondly, the fixing holes 16 on the fixing column 15 provide precise positioning points for the installation of fasteners. The fasteners are connected through the first fixing seat 20 / second fixing seat 30 and the fixing holes 16, realizing a detachable assembly method. This structural design facilitates subsequent maintenance, repair and replacement of parts, significantly improving the maintainability and service life of the equipment.

[0041] Furthermore, fasteners can take various forms, such as screws and thermoplastic studs, offering excellent versatility and adaptability. This not only allows for flexible selection of connection methods based on actual usage requirements but also ensures a secure connection, preventing loosening or failure due to prolonged use or external forces, thus improving the overall safety and reliability of the sealing equipment.

[0042] A positioning post 17 protrudes from the inner wall of the base 10, and the two opposite ends of the positioning post 17 abut against the first fixed seat 20 and the second fixed seat 30, respectively.

[0043] This technical solution, by protruding a positioning post 17 on the inner wall of the base 10, allows the opposite ends of the positioning post 17 to abut against the first fixed seat 20 and the second fixed seat 30 respectively. The coordinated operation of these technical features effectively solves the technical problems of inaccurate fixed seat installation and positioning, low assembly efficiency, and poor sealing reliability in existing sealing equipment, thereby achieving the following technical effects:

[0044] First, the positioning post 17, as a positioning structure between the base 10 and the two end fixed seats, provides a clear installation reference for the first fixed seat 20 and the second fixed seat 30. When the two ends of the positioning post 17 abut against the two fixed seats respectively, it can ensure the accurate assembly position of the fixed seats, thereby ensuring the coaxiality and tightness of each working cavity and sealing component, and avoiding sealing failure or gas leakage problems caused by positional deviation.

[0045] Secondly, the positioning column 17 simplifies the assembly process, allowing assemblers to quickly position the first fixed seat 20 and the second fixed seat 30 directly using the positioning column 17 without the need for complex measuring or auxiliary tools, thus effectively improving assembly efficiency and reducing production and maintenance costs.

[0046] Furthermore, the positioning column 17 structure can continuously provide stable support and positioning for the fixed seat during long-term use of the equipment, preventing the fixed seat from shifting due to force or vibration, thus improving the structural stability and reliability of the sealing device.

[0047] In summary, by setting a protruding positioning post 17 on the inner wall of the base 10, which abuts against the first fixed seat 20 and the second fixed seat 30, not only is the assembly accuracy and efficiency improved, but the long-term stability and sealing performance of the sealing equipment are also enhanced, effectively solving related technical problems and improving the overall practical value of the equipment.

[0048] The inner wall of the base 10 is provided with a first groove 18 and a second groove 19, the first fixing seat 20 is located in the first groove 18, and the second fixing seat 30 is located in the second groove 19.

[0049] This technical solution solves the technical problems of inaccurate positioning of the fixing seat, inconvenient assembly, and poor structural stability in existing devices by opening a first groove 18 and a second groove 19 on the inner wall of the base 10, and placing the first fixing seat 20 and the second fixing seat 30 in the first groove 18 and the second groove 19 respectively. The various technical features work together to effectively solve the technical problems of inaccurate positioning of the fixing seat, inconvenient assembly, and poor structural stability in existing devices, and achieves the following technical effects:

[0050] First, by creating a first groove 18 and a second groove 19 on the inner wall of the base 10, clear installation positions and guiding references are provided for the first fixing seat 20 and the second fixing seat 30. Each fixing seat can be accurately embedded into its corresponding groove during assembly, thus ensuring the positioning accuracy of the fixing seats, avoiding deviations caused by manual positioning, and improving the coaxiality of the components and the overall assembly accuracy.

[0051] Secondly, the groove structure can effectively limit the radial movement of the first fixed seat 20 and the second fixed seat 30, making it less likely for the assembled fixed seat to shift or loosen during use, thus enhancing the structural stability and reliability of the device and helping to extend the service life of the equipment.

[0052] Please see Figures 1 to 4 As shown, Figure 4 This is a schematic diagram of the structure of the first fixing base 20 provided in an embodiment of the present invention from a first perspective.

[0053] The first fixing base 20 includes a first base plate 21, a surrounding plate 22, a first limiting plate 23 and a second limiting plate 24. The surrounding plate 22 is connected to the first base plate 21. The first base plate 21 has a first vent hole 201. The first limiting plate 23 and the second limiting plate 24 are spaced apart on the inner wall of the surrounding plate 22 to form a first limiting groove 202. The first sealing ring 50 is located in the first limiting groove 202.

[0054] This technical solution, through the multiple structural designs of the first fixed seat 20 and the organic coordination of its various parts, provides an effective solution to the technical problems of easy displacement of the sealing ring, poor sealing, and inconvenient installation in the sealing structure, achieving the following technical effects:

[0055] First, the first fixing base 20 includes a first base plate 21 and a surrounding plate 22, which are connected to form a spatial structure, which is beneficial to improving the overall strength. The first base plate 21 is provided with a first vent hole 201 to ensure the necessary ventilation or pressure balance of the device in a sealed state, and to avoid structural damage or sealing failure caused by abnormal air pressure.

[0056] Secondly, a first limiting plate 23 and a second limiting plate 24 are spaced apart on the inner wall of the enclosure 22, forming a first limiting groove 202. This limiting groove provides a dedicated and precise installation space for the first sealing ring 50, which can effectively prevent the sealing ring from shifting axially or radially during use, ensuring that the sealing ring is always in the correct working position, thereby greatly improving the sealing effect and sealing reliability.

[0057] Furthermore, the combined structure of the first limiting plate 23, the second limiting plate 24, and the surrounding plate 22 enables the first sealing ring 50 to have a self-positioning function during installation, simplifying the installation process, improving assembly efficiency, reducing the deformation or misalignment of the sealing ring caused by human error, and significantly reducing assembly difficulty and maintenance costs.

[0058] In summary, this technical solution, through the synergistic effect of the first substrate 21, the surrounding plate 22, the first limiting plate 23, the second limiting plate 24, the first vent 201, and the first limiting groove 202, not only improves the positioning accuracy and sealing reliability of the sealing ring, but also optimizes the ease of assembly and structural stability. It comprehensively solves the technical problems of easy displacement of the sealing ring, poor sealing, and complex installation, and ultimately achieves the technical effects of excellent sealing performance, stable structure, and easy installation.

[0059] The first sealing ring 50 includes a first fixing part 51, a first connecting part 52 and a first sealing part 53 connected in sequence. The first fixing part 51 and the first sealing part 53 form a first deformation cavity 54 at an interval. The opposite ends of the first fixing part 51 are respectively connected to the first limiting plate 23 and the second limiting plate 24. When the air pressure in the first working groove 12 is lower than that outside, the outside air enters the first deformation cavity 54 and applies force to the first sealing part 53, so that the first sealing part 53 contacts the first Mason jar to seal the first Mason jar.

[0060] This technical solution, through the innovative structural design of the first sealing ring 50 and the coordinated operation of its various components, effectively solves the technical problems in existing technologies such as poor sealing reliability under pressure changes, untimely sealing response, and easy displacement of the sealing ring, achieving excellent sealing performance. Specifically, it is reflected in:

[0061] First, the first sealing ring 50 sequentially includes a first fixing part 51, a first connecting part 52, and a first sealing part 53. The clearly defined functional divisions create a distinct structural hierarchy, with each part fulfilling a different function. The two opposite ends of the first fixing part 51 are respectively connected to the first limiting plate 23 and the second limiting plate 24, reliably limiting and fixing the first sealing ring 50. This prevents axial or radial displacement of the sealing ring when subjected to pressure changes or external disturbances, thus ensuring that the sealing ring is always in the correct working position.

[0062] Secondly, the first fixing part 51 and the first sealing part 53 form a first deformation cavity 54, providing space for the sealing ring to elastically deform under force. When the air pressure in the first working groove 12 is lower than that outside, external air can smoothly enter the first deformation cavity 54, applying pressure to the first sealing part 53, causing the first sealing part 53 to move towards the first Mason jar, thereby making the first sealing part 53 tightly contact the first Mason jar and automatically forming a seal. This structural design makes full use of the air pressure difference and can automatically adjust the sealing force according to the actual air pressure change, improving the sensitivity and reliability of the sealing response.

[0063] Furthermore, the first connecting part 52 is provided, allowing the various parts of the sealing ring to flexibly cooperate, achieving effective deformation and force transmission when the air pressure changes, thus enhancing the overall adaptability and durability of the sealing ring. At the same time, the presence of the connecting part helps to buffer the deformation stress of the sealing ring caused by sudden changes in air pressure, preventing the sealing ring from failing due to excessive local stress.

[0064] Through the organic collaboration of the above structures, this technical solution can dynamically adjust the sealing effect according to the gas pressure state during actual operation, avoiding the problem of sealing failure of traditional sealing structures under gas pressure changes. This significantly improves the automatic adaptability and reliability of the sealing system, achieving efficient sealing of the first Mason jar. In summary, this technical solution, through the synergistic effect of the first fixing part 51, the first connecting part 52, the first sealing part 53, the first deformation cavity 54, and the limiting structure, achieves the technical effects of stable positioning of the sealing ring, sensitive sealing response, gas pressure adaptive sealing, and excellent sealing performance.

[0065] The width of the first fixing part 51 is greater than or equal to the width of the first limiting plate 23. The first limiting plate 23 will not be inserted into the opening of the first deformation cavity 54, so as not to block the first deformation cavity 54 and ensure that the external air can enter the first deformation cavity 54 normally. The width of the second limiting plate 24 is greater than the width of the first limiting plate 23. The second limiting plate 24 is further connected to the first connecting part 52.

[0066] In this embodiment, the width of the first fixing part 51 is greater than or equal to the width of the first limiting plate 23, so that the first limiting plate 23 cannot be inserted into the opening of the first deformation cavity 54 during installation, thus avoiding the first limiting plate 23 from blocking the opening of the first deformation cavity 54. This effectively ensures that external air can smoothly enter the first deformation cavity 54, solving the problem of obstructed ventilation of the deformation cavity caused by the limiting plate in the prior art, thereby achieving the technical effect of smooth ventilation and reliable device operation.

[0067] Furthermore, the width of the second limiting plate 24 is greater than the width of the first limiting plate 23, and the second limiting plate 24 is connected to the first connecting part 52. This structural arrangement can enhance the overall stability of the limiting structure, improve the limiting effect, prevent the limiting plate from shifting or loosening during operation, and improve the durability and reliability of the product.

[0068] In summary, this technical solution effectively avoids the air inlet of the deformation cavity being blocked by rationally designing the width relationship between the first fixing part 51 and the limiting plate, as well as the structural connection method of the second limiting plate 24, while improving the stability of the limiting structure, thereby achieving the technical effects of smooth airflow and stable device structure.

[0069] The first sealing part 53 has a first chamfer on its outer peripheral surface away from the first connecting part 52 and away from the first deformation cavity 54. The first chamfer can be a rounded corner or a beveled corner. The first chamfer can ensure the smooth insertion of the first Mason jar.

[0070] In this embodiment, a first chamfer is provided on the outer peripheral surface of the first sealing part 53 at the end away from the first connecting part 52 and away from the first deformation cavity 54. The first chamfer can be a rounded corner or a beveled corner. By providing a chamfer at this position, the insertion force and insertion resistance can be effectively reduced, avoiding jamming or scratching caused by excessively sharp edges, thereby ensuring that the first Mason jar can be smoothly inserted into the corresponding position. This design specifically solves the problems of inconvenient insertion and easy damage to the sealing part or container caused by the right angle or sharp structure of the sealing part in the prior art, and achieves the technical effects of unobstructed insertion of Mason jars, convenient operation, and durable structure.

[0071] The first limiting plate 23 has a third groove 203, and part of the first fixing part 51 is inserted into the third groove 203.

[0072] In this embodiment, the first limiting plate 23 has a third groove 203, and a portion of the first fixing part 51 is inserted into the third groove 203. By providing the third groove 203 on the first limiting plate 23 and inserting a portion of the structure of the first fixing part 51 into it, precise positioning and stable connection between the first limiting plate 23 and the first fixing part 51 can be achieved. This design effectively solves the problems of unreliable connection between the limiting plate and the fixing part in the prior art, which are prone to misalignment or loosening. It improves the installation accuracy and structural stability of the components, thereby achieving the technical effects of reliable cooperation between the limiting plate and the fixing part, efficient assembly, and safe use.

[0073] Along the axial direction of the first vent 201, a channel 204 is formed by passing through the first limiting plate 23 and the second limiting plate 24 in sequence, and the channel 204 can ensure normal air circulation.

[0074] In this embodiment, a channel 204 is formed by sequentially passing through the first limiting plate 23 and the second limiting plate 24 along the axial direction of the first vent 201. By providing a through channel 204 between the first limiting plate 23 and the second limiting plate 24, air can pass smoothly along the channel 204, effectively solving the problem of poor airflow caused by the first limiting plate 23 and the second limiting plate 24 blocking the airflow in the prior art. This solution ensures normal airflow, thereby achieving the technical effects of smooth gas exchange inside the device, preventing gas accumulation, and improving the reliability of related functions.

[0075] The first fixed base 20 also includes a gap plate 25, which is located in the channel 204 and is connected to the first base plate 21 and the surrounding plate 22 respectively. The gap plate 25 partially reinforces the base 10 located in the area of ​​the channel 204, and the gap plate 25 can support and limit the first Mason jar.

[0076] In this embodiment, the first fixed base 20 further includes a gap plate 25, which is located in the channel 204 and connected to the first base plate 21 and the surrounding plate 22 respectively. The gap plate 25 locally strengthens the area of ​​the base 10 located in the channel 204 and can support and limit the first Mason jar. Through the above technical solution, the setting of the gap plate 25 effectively solves the problems of insufficient structural strength, easy deformation, and easy displacement of the first Mason jar in the channel 204 area in the prior art. Specifically, the gap plate 25 is connected to the first base plate 21 and the surrounding plate 22, thereby strengthening the structure of the channel 204 area and improving the load-bearing capacity and stability of the base 10 in this area; on the other hand, the gap plate 25 can effectively support and limit the first Mason jar, preventing it from moving or tilting in the channel 204. Thus, the overall structural stability of the device and the reliable positioning of the first Mason jar are ensured, thereby achieving the technical effect of improving the safety and reliability of the device.

[0077] The width of the gap plate 25 is less than or equal to the width of the second limiting plate 24. After the second limiting plate 24 fails, the gap plate 25 further limits the first Mason tank.

[0078] In this embodiment, the width of the gap plate 25 is less than or equal to the width of the second limiting plate 24. After the second limiting plate 24 fails, the gap plate 25 can further limit the first Mason jar. This technical solution addresses the previous problem of relying solely on the second limiting plate 24 to limit the first Mason jar, which lacked subsequent limiting measures if the second limiting plate 24 unexpectedly failed, leading to displacement or detachment of the first Mason jar. This embodiment addresses this by setting a gap plate 25 after the second limiting plate 24 and reasonably controlling the width of the gap plate 25, ensuring that the gap plate 25 can promptly play a limiting role when the second limiting plate 24 fails, forming a double limiting protection. This effectively improves the reliability of limiting the first Mason jar, enhances the safety performance and service life of the device, and achieves the technical effect of improving the safety and redundancy of the first Mason jar's limiting function.

[0079] The first fixing base 20 also includes a plurality of first protrusions 26, which are disposed on the first base plate 21. The first protrusions 26 are used to abut against the mouth of the first Mason jar, thereby creating a ventilation channel 204 between the first Mason jar and the first base plate 21.

[0080] In this embodiment, the first fixing base 20 further includes a plurality of first protrusions 26, which are disposed on the first substrate 21 and used to abut the mouth of the first Mason jar, thereby creating a gap between the first Mason jar and the first substrate 21 to form a ventilation channel 204. This technical solution solves the problem in the prior art where the bottom of the first Mason jar is in direct contact with the substrate, leading to poor ventilation and difficulty in timely discharge or circulation of gas inside the jar, thus affecting the normal use of the Mason jar. Specifically, the plurality of first protrusions 26 can lift the mouth of the first Mason jar, creating a gap between its bottom and the first substrate 21, effectively constructing a ventilation channel 204, allowing air to circulate smoothly, ensuring smooth gas exchange inside and outside the jar, preventing negative pressure or abnormal pressure caused by poor ventilation, and improving the practicality and safety of the device. Thus, the technical effect of smooth ventilation between the first Mason jar and the first substrate 21 and safer and more reliable use is achieved.

[0081] Multiple first protrusions 26 surround the axis of the first vent 201 from the inside to the outside to form a first ring and a second ring. There are multiple first protrusions 26 in the first ring and they are spaced apart from each other. There are multiple first protrusions 26 in the second ring and they are spaced apart from each other.

[0082] In this embodiment, multiple first protrusions 26 are distributed from the inside to the outside around the axis of the first vent 201, forming a first ring and a second ring, with the multiple first protrusions 26 in the first ring and the second ring being spaced apart from each other. This technical solution solves the technical problems of uneven support, poor stability, and easy blockage of the venting channel 204 in the prior art when only a single ring of protrusions is used. Specifically, the multi-ring distributed and spaced first protrusion 26 structure enhances the multi-point uniform support of the first Mason jar mouth, improving the stability and anti-tipping ability of the Mason jar. Furthermore, the multi-ring spaced arrangement creates multiple venting channels 204 between the first Mason jar and the first substrate 21. Even if some channels 204 are blocked by foreign objects, the remaining channels 204 can still ensure smooth ventilation, effectively improving the reliability of ventilation. Thus, the technical effects of more stable Mason jar support, unobstructed venting channels 204, and strong anti-blockage ability are achieved.

[0083] The first protrusion 26 in the first ring extends around the axis of the first vent 201, and the first protrusion 26 in the second ring extends toward the axis of the first vent 201.

[0084] In this embodiment, the first protrusion 26 in the first ring extends around the axis of the first vent 201, while the first protrusion 26 in the second ring extends towards the axis of the first vent 201. This technical solution effectively solves the problem in the prior art where the protrusion arrangement is singular and cannot simultaneously provide uniform support and airflow guidance for the Mason jar. Specifically, the first protrusion 26 in the first ring, arranged around the axis, provides circumferential stable support for the mouth of the Mason jar, preventing tilting or displacement of the jar. The arrangement of the first protrusion 26 in the second ring, extending towards the axis of the vent, helps guide airflow towards the vent, improving the ventilation efficiency at the bottom of the jar and preventing airflow blockage. In summary, this technical solution not only enhances the support and positioning effect of the Mason jar but also optimizes the layout of the ventilation channel 204, effectively achieving more stable jar support and higher ventilation efficiency.

[0085] The sealing device also includes a retaining ring 70, which is located in the second working groove 13 and connected to the second fixed seat 30. A second limiting groove 34 is formed between the retaining ring 70 and the second fixed seat 30, and a second sealing ring 60 is located in the second limiting groove 34.

[0086] Through the above technical solution, a fixing ring 70 is provided in the sealing device, and the fixing ring 70 is located in the second working groove 13 and connected to the second fixing seat 30, thereby forming a second limiting groove 34 between the fixing ring 70 and the second fixing seat 30, and the second sealing ring 60 is located in the second limiting groove 34. This structure can effectively solve the technical problem in the prior art that the sealing ring is prone to misassembly, positional deviation, or falling off during operation, resulting in reduced sealing performance. Specifically, by using the fixing ring 70 and the second fixing seat 30 to cooperate in defining a dedicated second limiting groove 34, the installation position of the second sealing ring 60 can be precisely defined, ensuring that the second sealing ring 60 is stably and firmly fixed in the predetermined position, preventing the second sealing ring 60 from shifting or falling off when subjected to pressure or friction. This achieves the technical effect of high assembly accuracy of the second sealing ring 60 and long-lasting and reliable sealing effect, further improving the sealing performance and service life of the sealing device.

[0087] The retaining ring 70 and the second retaining seat 30 are snapped together so that the retaining ring 70 and the second retaining seat 30 are detachably connected. After the second sealing ring 60 is installed into the second working groove 13, the retaining ring 70 is then installed. After the retaining ring 70 and the second retaining seat 30 are snapped together, the second sealing ring 60 is limited and fixed.

[0088] Through the above technical solution, the fixing ring 70 and the second fixing seat 30 are detachably connected by a snap-fit ​​mechanism. After the second sealing ring 60 is installed into the second working groove 13, the fixing ring 70 is then installed and snapped into the second fixing seat 30, thereby effectively limiting and fixing the second sealing ring 60. This structure can solve the problems of complex sealing ring assembly process, inaccurate positioning, and inconvenient disassembly and maintenance in the prior art. Specifically, the snap-fit ​​connection structure allows for quick assembly and disassembly of the fixing ring 70 and the second fixing seat 30, facilitating the installation and subsequent maintenance of the sealing ring and improving assembly efficiency. At the same time, after the fixing ring 70 is snapped into the second fixing seat 30, it can reliably limit and compress the second sealing ring 60, preventing the second sealing ring 60 from shifting or falling off, thereby ensuring the stability and reliability of the seal. Therefore, this technical solution achieves the technical effects of convenient installation, reliable limiting, and convenient maintenance of the second sealing ring 60, improving the performance of the sealing equipment and the user experience.

[0089] Please see Figures 1 to 5 As shown, Figure 5 This is a schematic diagram of the structure of the first fixing base 20 provided in an embodiment of the present invention from a second perspective.

[0090] The second fixing base 30 includes a second base plate 31 and an extension portion 33. The extension portion 33 is disposed on the second base plate 31, and a second limiting groove 34 is formed between the extension portion 33 and the fixing ring 70. The second base plate 31 is provided with a second vent hole 32.

[0091] According to the above technical solution, the second fixing base 30 includes a second base plate 31 and a raising portion 33 disposed thereon. A second limiting groove 34 is formed between the raising portion 33 and the fixing ring 70. A second vent hole 32 is provided on the second base plate 31. The second sealing ring 60 is located in the second limiting groove 34 and is connected to the raising portion 33 and the fixing ring 70 respectively. With the setting of the raising portion 33, the second sealing ring 60 is raised, forming a gap with the second base plate 31, so that the second sealing ring 60 can fully fit against the peripheral wall of the second Mason jar.

[0092] This technical solution effectively solves the problem in the prior art where the second sealing ring 60 cannot fully fit against the container's peripheral wall due to its limited position, resulting in poor sealing performance. Specifically, the raised part 33 not only provides precise positioning and support for the second sealing ring 60, but also elevates the sealing ring, allowing it to adapt to and tightly fit against the peripheral wall of the second Mason jar, thereby improving the sealing performance of the sealing ring. Simultaneously, the limiting groove structure ensures the stability of the sealing ring during operation, preventing displacement or loosening, and improving the reliability of the sealing structure.

[0093] Therefore, by optimizing the installation method of the second sealing ring 60, this technical solution achieves complete fit between the second sealing ring 60 and the peripheral wall of the second Mason jar, thereby significantly improving the sealing effect and enhancing the sealing reliability and service life of the product.

[0094] The heightening section 33 has multiple spaced-apart material-reducing grooves 36. By creating multiple spaced-apart material-reducing grooves 36 on the heightening section 33, the problems of high structural integrity, low material utilization, and large overall weight in the prior art are effectively solved. Specifically, the material-reducing grooves 36 can reduce the amount of material used in the heightening section 33 while ensuring the structural strength and functional integrity of the heightening section 33, thereby reducing manufacturing costs and product weight. In addition, the multiple spaced-apart material-reducing grooves 36 can further improve the heat dissipation performance of the heightening section 33, helping to avoid local heat accumulation and improve the thermal stability of the overall structure.

[0095] Therefore, this technical solution achieves material savings, structural lightweighting, and improved heat dissipation performance through the material reduction design of the height-increasing section 33, which helps to improve the product's economy and overall performance.

[0096] The second sealing ring 60 includes a second fixing part 61, a second connecting part 62, and a second sealing part 63 connected in sequence. The second fixing part 61 and the second sealing part 63 form a second deformation cavity 65 at intervals. The opposite ends of the second fixing part 61 are connected to the fixing ring 70 and the raising part 33, respectively. When a pressure difference is generated inside and outside, external air enters the second deformation cavity 65 and applies a thrust to the second sealing part 63. The second sealing part 63 is used to contact the second Mason jar.

[0097] This technical solution effectively solves the problem in existing technologies where the sealing effect of the sealing ring decreases or even leaks when encountering changes in internal and external pressure. Specifically, by setting a second deformation cavity 65, external air pressure is used to assist the sealing, which automatically enhances the adhesion between the second sealing part 63 and the peripheral wall of the second Mason jar under the action of pressure difference, thereby improving the sealing effect. At the same time, the connection between the second fixing part 61, the fixing ring 70, and the raising part 33 ensures the stability of the second sealing ring 60, preventing the sealing ring from shifting or deforming under force, and further improving the reliability of the sealing structure.

[0098] Therefore, this technical solution, through its unique structural design and pressure-adaptive sealing principle, achieves a tight fit between the sealing ring and the container wall under different pressure environments, effectively improving sealing performance and safety, and enhancing the adaptability and reliability of the overall sealing structure.

[0099] The retaining ring 70 does not extend beyond the opening of the second deformation cavity 65, and the raised portion 33 is further connected to the second connecting portion 62. Through the above technical solution, the structural design of the retaining ring 70 ensures that it does not extend beyond the opening of the second deformation cavity 65 and does not obstruct the normal entry of air into the second deformation cavity 65. This ensures that when there is a pressure difference between the inside and outside, external air can smoothly enter the second deformation cavity 65, generating an effective thrust on the second sealing portion 63 and enhancing the sealing performance. This structure effectively solves the technical problem in the prior art where the retaining ring 70 obstructs air from entering the deformation cavity, thus affecting the sealing effect.

[0100] Meanwhile, the heightening part 33 is further connected to the second connecting part 62, which enhances the connection stability between the second sealing ring 60 and related components, avoids the problem of displacement or detachment of the second sealing ring 60 due to weak connection during stress or use, and improves the reliability and service life of the entire sealing structure.

[0101] Therefore, by optimizing the spatial relationship between the fixed ring 70 and the second deformation cavity 65, and by enhancing the connection between the heightening part 33 and the second connecting part 62, this technical solution improves the sealing performance of the second sealing ring 60 under pressure difference, and further ensures the stability of the structural connection and the overall reliability of the sealing device.

[0102] The second sealing part 63 has a second chamfer on its outer peripheral surface away from the second connecting part 62 and the second deformation cavity 65, which serves as a guide to facilitate the insertion of the second Mason jar into the second working groove 13. When the second Mason jar is inserted into the second working groove 13, the second chamfer guides the outer wall of the second Mason jar to slide smoothly into the sealing structure, reducing resistance and jamming during insertion and preventing damage or deformation of the sealing components due to excessive insertion force. The second chamfer can be a rounded corner or a beveled corner.

[0103] This technical solution solves the technical problems in the prior art, such as the second sealing part 63 having excessively sharp or right-angled edges, leading to difficulties in inserting the second Mason jar, easy damage to the second sealing part 63, and unstable sealing effect. By setting a guide chamfer, not only is the ease of inserting the second Mason jar and the user experience of the sealing structure improved, but the integrity and service life of the second sealing part 63 are also guaranteed.

[0104] Therefore, this technical solution achieves the technical effect of insertion guidance by setting a chamfer on the outer peripheral surface of the second sealing part 63, which facilitates the smooth insertion of the second Mason jar into the second working groove 13 and improves the assembly efficiency and sealing reliability of the sealing structure.

[0105] The second mounting base 30 also includes a plurality of second protrusions 35 disposed on the second base plate 31. The second protrusions 35 are used to abut against the mouth of the second Mason jar, thereby separating the second Mason jar from the second base plate 31 to form an airflow channel 204, ensuring normal ventilation of the second vent 32. This structure can effectively prevent the mouth of the second Mason jar from being tightly fitted to the second base plate 31, avoiding blockage of the airflow channel 204 due to such tightness, which would affect the normal ventilation of the second vent 32.

[0106] This technical solution solves the technical problems of direct contact between the second Mason jar opening and the second substrate 31, which easily blocks the second vent hole 32, leading to poor ventilation, reduced sealing performance, and inconvenience in handling. By setting multiple second protrusions 35, a stable and uniform interval is maintained regardless of the placement angle of the second Mason jar opening, improving the unobstructed flow of airflow channel 204 and the reliability of ventilation.

[0107] Therefore, by providing a second protrusion 35 on the second substrate 31 to hold the bottle opening, this technical solution achieves an effective gap between the second Mason jar and the second substrate 31, ensuring normal ventilation of the second vent 32 and improving the performance and user experience of the device.

[0108] Multiple second protrusions 35 surround the axis of the second vent 32, forming a third and fourth ring from the inside out. The third ring contains multiple second protrusions 35 spaced apart from each other, as does the fourth ring. This structure provides multi-point support between the second Mason jar and the second base plate 31, ensuring the jar mouth is more stably fixed during placement. It also effectively prevents instability, tilting, or wobbling caused by insufficient or unevenly distributed protrusions in a single ring.

[0109] Furthermore, the spacing between the third and fourth rings further enhances the connectivity of the airflow channel 204. Even if some protrusions have a large contact area with the bottle mouth, the multiple rings and spacing of the protrusions ensure that the airflow can pass smoothly through different interval areas, ensuring the normal ventilation of the second vent 32 and avoiding the problem of affecting the ventilation effect due to a single support point blocking the airflow channel 204.

[0110] Therefore, this technical solution, through the multiple rings and spaced distribution of the second protrusions 35, not only improves the stability and reliability of the placement of the second Mason jar, but also effectively ensures the unobstructed flow of the airflow channel 204, achieving the technical effect of improving ventilation efficiency and overall structural performance.

[0111] The second protrusion 35 in the third ring extends around the axis of the second vent 32, and the second protrusion 35 in the fourth ring extends toward the axis of the second vent 32.

[0112] Through the above technical solution, the second protrusion 35 in the third ring extends around the axis of the second vent 32, forming a support structure distributed along the circumferential direction. This effectively provides uniform multi-point support around the mouth of the second Mason jar, improving the stability of the bottle mouth. Meanwhile, the second protrusion 35 in the fourth ring extends towards the axis of the second vent 32, and its radially distributed structural design helps guide airflow towards the second vent 32, further optimizing the airflow channel 204.

[0113] This structure addresses the problems in existing technologies, such as the airflow channel 204 being easily blocked, the airflow path being obstructed, and the uneven support of the second Mason jar mouth leading to poor sealing. By combining circumferential and radial protrusions, it not only enhances the fixing effect of the second Mason jar mouth, preventing it from tilting or shaking, but also effectively guides the airflow, allowing the gas to pass smoothly through the intervals between the protrusions and enter the second vent 32, thereby ensuring the normal ventilation of the second vent 32.

[0114] Therefore, this technical solution achieves a balance between the stability of the second Mason jar mouth support and the unobstructed flow of the airflow channel 204 by adopting a circumferential extension and a radial extension structure design for the second protrusion 35 of the third and fourth rings, respectively. This solves the problems of airflow obstruction and uneven support, and achieves the technical effect of improving the ventilation efficiency and reliability of the device.

[0115] The sealing device includes a converter head 80 for communicating with a sealing bag. A first base plate 21 has a first positioning groove 205 formed around a first vent hole 201, and the converter head 80 is inserted into the first positioning groove 205 to communicate with the first vent hole 201. A second base plate 31 has a second positioning groove 38 formed around a second vent hole 32, and the converter head 80 is inserted into the second positioning groove 38 to communicate with the second vent hole 32. The converter head 80 can be assembled to the first positioning groove 205 and the first vent hole 201 for use, and the converter head 80 can also be assembled to the second positioning groove 38 and the second vent hole 32 for use. Under the action of the vacuum pump 40, the converter head 80 can extract air from the sealing bag.

[0116] This technical solution addresses the technical problems of poor compatibility, inconvenience of use, and low equipment utilization in existing sealing equipment when adapting to sealing bags of different specifications and substrate vents by setting up a conversion head 80 and its mating structure with the first substrate 21 and the second substrate 31.

[0117] First, a first positioning groove 205 is formed by the first substrate 21 surrounding the first vent 201, and a second positioning groove 38 is formed by the second substrate 31 surrounding the second vent 32. The conversion head 80 can be inserted into the first positioning groove 205 or the second positioning groove 38 respectively to achieve sealed communication with the corresponding vent. This structural design improves the device's adaptability to different substrate structures and enhances the device's versatility and flexibility.

[0118] Secondly, the number of conversion heads 80 can be one. When one of the first working slot 12 and the second working slot 13 is unusable, the same conversion head 80 can be matched with the other working slot by switching, which greatly improves the service life and resource utilization of the equipment and reduces maintenance and replacement costs.

[0119] Furthermore, the number of adapters 80 can also be two, and the two adapters 80 have different diameters, which can respectively adapt to the first positioning groove 205 and the second positioning groove 38, effectively avoiding problems such as poor sealing or inconvenient assembly caused by inconsistent vent hole sizes, and ensuring the reliability of the sealing connection.

[0120] With the help of the vacuum pump 40, the converter 80 can efficiently extract the air from the sealed bag, ensuring that the inside of the sealed bag achieves the expected vacuum effect, thus improving the vacuuming efficiency and sealing performance of the sealing equipment.

[0121] In summary, this technical solution flexibly solves the problem of adapting sealing equipment to different substrates and vents by setting up a replaceable or adaptable adapter 80, which significantly improves the compatibility, sealing reliability and ease of use of the equipment, and achieves the technical effects of simple structure, flexible operation, good sealing effect and wide applicability.

[0122] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0123] It should also be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0124] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0125] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A sealing device, characterized in that, The sealing device includes: The base has a receiving cavity, and the opposite ends of the base have a first port and a second port respectively communicating with the receiving cavity; A first fixing seat and a second fixing seat are respectively located at the first opening and the second opening to divide the accommodating cavity into a first working groove, a second working groove and a third working groove. The first working groove is located on the side of the first fixing seat away from the second fixing seat, the second working groove is located on the side of the second fixing seat away from the first fixing seat, and the third working groove is located between the first fixing seat and the second fixing seat. The first fixing seat is provided with a first vent hole, and the second fixing seat is provided with a second vent hole. An air extraction machine is located in the third working slot, and the air extraction machine is connected to the first vent and the second vent respectively; A first sealing ring, located in the first working groove and connected to the first fixed seat, is used to fit with a first Mason jar; and The second sealing ring is located in the second working groove and connected to the second fixed seat. The inner diameter of the second sealing ring is larger than the inner diameter of the first sealing ring. The second sealing ring is used to fit the second Mason jar.

2. The sealing device according to claim 1, characterized in that, The sealing device further includes a first pipeline, a second pipeline, a main pipeline, and a commutator. The air pump is connected to the main pipeline and the commutator. The commutator is connected to the first pipeline and the second pipeline respectively. The first pipeline is connected to the first vent hole, and the second pipeline is connected to the second vent hole.

3. The sealing device according to claim 2, characterized in that, The sealing device also includes a pressure detector, which is connected to the main pipeline.

4. The sealing device according to claim 1, characterized in that, A fixing post protrudes from the inner wall of the base, and the fixing post has a fixing hole. The opposite ends of the fixing post abut against the first fixing seat and the second fixing seat respectively. Fasteners pass through the first fixing seat and the fixing hole and are connected. Fasteners pass through the second fixing seat and the fixing hole.

5. The sealing device according to claim 4, characterized in that, A positioning post protrudes from the inner wall of the base, and the opposite ends of the positioning post abut against the first fixing seat and the second fixing seat, respectively.

6. The sealing device according to claim 4, characterized in that, The base has a first groove and a second groove on its inner wall, the first fixing seat is located in the first groove, and the second fixing seat is located in the second groove.

7. The sealing device according to claim 1, characterized in that, The first fixing base includes a first base plate, a surrounding plate, a first limiting plate and a second limiting plate. The surrounding plate is connected to the first base plate. The first base plate has a first vent hole. The first limiting plate and the second limiting plate are spaced apart on the inner wall of the surrounding plate to form a first limiting groove. The first sealing ring is located in the first limiting groove.

8. The sealing device according to claim 7, characterized in that, The first sealing ring includes a first fixing part, a first connecting part, and a first sealing part connected in sequence. The first fixing part and the first sealing part are spaced apart to form a first deformation cavity. The opposite ends of the first fixing part are respectively connected to the first limiting plate and the second limiting plate. The first sealing part is used to contact the first Mason jar.

9. The sealing device according to claim 8, characterized in that, The width of the first fixing part is greater than or equal to the width of the first limiting plate, the width of the second limiting plate is greater than the width of the first limiting plate, and the second limiting plate is further connected to the first connecting part.

10. The sealing device according to claim 8, characterized in that, The first sealing portion has a first chamfer on its outer peripheral surface away from the first connecting portion and away from the first deformation cavity.

11. The sealing device according to claim 8, characterized in that, The first limiting plate has a third groove, and part of the first fixing part is inserted into the third groove.

12. The sealing device according to claim 7, characterized in that, A channel is formed by passing through the first limiting plate and the second limiting plate sequentially along the axial direction of the first vent hole.

13. The sealing device according to claim 12, characterized in that, The first fixing base further includes a gap plate, which is located in the channel and is connected to the first base plate and the surrounding plate respectively.

14. The sealing device according to claim 13, characterized in that, The width of the gap plate is less than or equal to the width of the second limiting plate.

15. The sealing device according to claim 7, characterized in that, The first fixing base also includes a plurality of first protrusions disposed on the first base plate, the first protrusions being used to abut against the mouth of the first Mason jar.

16. The sealing device according to claim 15, characterized in that, The plurality of first protrusions form a first ring and a second ring around the axis of the first vent from the inside out. There are multiple first protrusions in the first ring that are spaced apart from each other, and there are multiple first protrusions in the second ring that are spaced apart from each other.

17. The sealing device according to claim 16, characterized in that, The first protrusion in the first ring extends around the axis of the first vent, and the first protrusion in the second ring extends toward the axis of the first vent.

18. The sealing device according to any one of claims 1 to 17, characterized in that, The sealing device further includes a retaining ring, which is located in the second working groove and connected to the second fixed seat. A second limiting groove is formed between the retaining ring and the second fixed seat, and the second sealing ring is located in the second limiting groove.

19. The sealing device according to claim 18, characterized in that, The retaining ring and the second retaining seat are connected by a snap-fit.

20. The sealing device according to claim 18, characterized in that, The second fixing base includes a second base plate and an extension portion. The extension portion is disposed on the second base plate, and a second limiting groove is formed between the extension portion and the fixing ring. The second base plate is provided with a second vent hole.

21. The sealing device according to claim 20, characterized in that, The heightening section has multiple spaced-apart material reduction grooves.

22. The sealing device according to claim 20, characterized in that, The second sealing ring includes a second fixing part, a second connecting part, and a second sealing part connected in sequence. The second fixing part and the second sealing part are spaced apart to form a second deformation cavity. The opposite ends of the second fixing part are respectively connected to the fixing ring and the raising part. The second sealing part is used to contact the second Mason jar.

23. The sealing device according to claim 22, characterized in that, The fixing ring does not exceed the opening of the second deformation cavity, and the heightening part is further connected to the second connecting part.

24. The sealing device according to claim 22, characterized in that, The second sealing part has a second chamfer on its outer peripheral surface away from the second connecting part and away from the second deformation cavity.

25. The sealing device according to claim 20, characterized in that, The second fixing base also includes a plurality of second protrusions disposed on the second base plate, the second protrusions being used to abut against the mouth of the second Mason jar.

26. The sealing device according to claim 25, characterized in that, The plurality of second protrusions form a third and a fourth ring around the axis of the second vent from the inside out. The second protrusions in the third ring are multiple and spaced apart from each other, and the second protrusions in the fourth ring are multiple and spaced apart from each other.

27. The sealing device according to claim 26, characterized in that, The second protrusion in the third ring extends around the axis of the second vent, and the second protrusion in the fourth ring extends toward the axis of the second vent.

28. The sealing device according to any one of claims 7 to 17, characterized in that, The sealing device includes a conversion head for communicating with a sealing bag. A first positioning groove is formed around the first vent hole on the first substrate. The conversion head is inserted into the first positioning groove and communicates with the first vent hole. The second fixing base includes a second substrate with a second vent hole. A second positioning groove is formed around the second vent hole on the second substrate. The conversion head is inserted into the second positioning groove and communicates with the second vent hole.

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