Multifunctional vacuum sealing machine

Abstract

The utility model discloses a multifunctional vacuum sealing machine, which relates to the technical field of vacuum sealing equipment, and comprises an inner vacuumizing sealing structure arranged in a first vacuum cavity; the cavity type vacuum sealing structure comprises a cavity type extraction opening extending into the second vacuum cavity, a heating body assembly arranged in the second vacuum cavity and a sealing panel hinged to one side of the second vacuum cavity; the vacuum pump assembly is used for controlling the inner vacuumizing sealing structure and the cavity type vacuum sealing structure to achieve the vacuumizing function. According to the multifunctional vacuum sealing machine, the shell is provided with the inner vacuumizing structure and the cavity type vacuum sealing structure at the same time, vacuum sealing of liquid-containing objects and common objects is met, and the multifunctional vacuum sealing machine can be suitable for sealing bags of different types. And the use requirements of the equipment in various use scenes are met. The integrated design is adopted, the positions of the first vacuum cavity and the second vacuum cavity are reasonably distributed, the equipment size can be reduced, the equipment size is reduced while multiple functions are achieved, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum sealing equipment, in particular to a multifunctional vacuum sealing machine. Background Art

[0002] Vacuum sealers are mainly used for product packaging in the food, medicine, chemical and other industries. Its working principle is to use a vacuum pump to extract the air in the bag to form a vacuum environment, and then the bag mouth is heated by a heating plate to increase its temperature. When the bag mouth temperature reaches a certain level, the sealer is pressed down, and the heat conducted by the heating plate melts the bag mouth, and the two sides of the bag mouth quickly bond to form a sealing line. Using a vacuum sealer can effectively extend the shelf life of food and prevent food from spoiling. It is widely used in daily life and industrial production.

[0003] The vacuum sealer has no requirements on the length of the bag, but the bag must be made of a bag with patterns to achieve the vacuum effect. However, the vacuum sealing effect on food with liquid is not ideal, and the liquid in the bag is easy to seep out. The cavity type vacuum sealer is not picky about the bag structure and can vacuum seal bags containing liquid, but the size of the bag is limited by the size of the vacuum cavity. Existing vacuum sealers usually only have one type of vacuum structure, which cannot meet a variety of usage scenarios. Utility Model Content

[0004] The utility model aims to at least solve the technical problem existing in the prior art that "the vacuum sealer usually has only one vacuum structure, which cannot meet the needs of various usage scenarios". To this end, the utility model proposes a multifunctional vacuum sealer, which is compact in size and has both internal vacuum sealer and cavity vacuum sealer structures, which can meet the vacuum seal needs of liquid-containing items and ordinary items, and is suitable for smooth and textured sealing bags.

[0005] According to some embodiments of the present invention, the multifunctional vacuum sealer comprises a housing, a side wall of the housing is provided with a first vacuum cavity, and a top of the housing is provided with a second vacuum cavity; comprising:

[0006] An internal vacuum sealing structure is arranged in the first vacuum chamber;

[0007] A cavity vacuum sealing structure, comprising a cavity exhaust port extending into the second vacuum cavity, a heating element assembly disposed in the second vacuum cavity, and a sealing panel hinged to one side of the second vacuum cavity;

[0008] A vacuum pump assembly, the vacuum pump assembly being communicated with the inner vacuum sealing structure and the cavity vacuum sealing structure respectively, and being used for controlling the inner vacuum sealing structure and the cavity vacuum sealing structure to realize a vacuuming function;

[0009] The control component includes a power supply unit and a control panel. The power supply unit is electrically connected to the inner vacuum sealing structure, the cavity vacuum sealing structure and the vacuum pump component respectively. The control panel is arranged on the inner side of the upper half of the shell.

[0010] According to some embodiments of the present invention, a circle of sealing strips is provided on the periphery of the second vacuum cavity, and when the sealing panel and the second vacuum cavity are closed, a sealed state is formed inside the second vacuum cavity.

[0011] According to some embodiments of the present invention, the sealing panel is made of a transparent material, and when the sealing panel and the second vacuum chamber are closed, the vacuum state can be observed through the sealing panel.

[0012] According to some embodiments of the utility model, a cutter assembly is included, wherein the bottom of the cutter assembly is hinged to the shell, the middle part is connected to the sealing panel, and the top part is used for cutting the sealing bag.

[0013] According to some embodiments of the utility model, the cavity vacuum sealing structure includes a bag opening pressing assembly, and the bag opening pressing assembly is arranged on one side of the heating element assembly. When the bag opening pressing assembly includes a pressing base and a bag opening pressing plate, the bag opening pressing plate is hinged to the pressing base, and when the bag opening of the sealed bag is laid on the top of the pressing base, the bag opening pressing plate flips over to press the bag opening of the sealed bag.

[0014] According to some embodiments of the utility model, a closing cylinder for driving the heating element assembly to close is provided at the bottom of the heating element assembly, a silicone strip connected to the sealing panel is provided at the top, the closing cylinder is connected to the vacuum pump assembly, and the vacuum pump assembly drives the closing cylinder to push upward, thereby pushing up the heating element assembly to move upward so that the opening of the sealing bag is pressed tightly between the silicone strip and the heating element assembly to achieve heating and sealing of the sealing bag;

[0015] The push rod of the closing cylinder is made of metal material, and the push rod is connected with a silicone protective cover, and the silicone protective cover abuts against the bottom of the heating element component. When the closing cylinder is pushed out, the heating element component is pushed up and hits the silicone pressure strip, and is continuously pushed out. The force increases and then the push rod is pushed out from the silicone protective cover and contacts the bottom electrode of the heating element component to drive the heating element component to heat.

[0016] According to some embodiments of the utility model, the inner vacuum sealing structure includes a vacuum chamber cover plate, an opening and closing pump for driving the vacuum chamber cover plate to be pressed downward, and a water tank disposed below the vacuum chamber cover plate;

[0017] A downward pressure cylinder is provided on the top of the vacuum chamber cover plate, and the vacuum pump drives the downward pressure cylinder to close the vacuum chamber cover plate and the water tank to form a sealed cavity;

[0018] The vacuum pump assembly is in communication with the vacuum chamber cover plate, and when the vacuum chamber cover plate is closed, the vacuum pump assembly evacuates the sealed chamber.

[0019] According to some embodiments of the present invention, the water tank is detachably connected to the first vacuum chamber.

[0020] According to some embodiments of the present invention, a reversing valve is respectively provided between the vacuum pump assembly and the inner vacuum sealing structure and the cavity vacuum sealing structure, and the reversing valve is used to switch the vacuum pump assembly to vacuum the corresponding vacuum cavity.

[0021] According to some embodiments of the present invention, the second vacuum chamber is a sunken space at the top of the shell.

[0022] The multifunctional vacuum sealer according to some embodiments of the utility model has at least the following beneficial effects: the shell is provided with the internal vacuum structure and the cavity vacuum sealing structure at the same time, which can meet the vacuum sealing of liquid-containing items and ordinary items, and can be applied to different types of sealing bags. It meets the needs of using the equipment in various usage scenarios. The integrated design and reasonable allocation of the positions of the first vacuum cavity and the second vacuum cavity are conducive to reducing the size of the equipment, and it has multiple functions while reducing the size of the equipment, which is convenient to use.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 It is a three-dimensional schematic diagram of a multifunctional vacuum sealer according to an embodiment of the utility model;

[0026] Figure 2 This is a first partial schematic diagram of the multifunctional vacuum sealer according to an embodiment of the utility model;

[0027] Figure 3 This is a second partial schematic diagram of the multifunctional vacuum sealer according to an embodiment of the utility model;

[0028] Figure 4 This is a schematic diagram of a cutter assembly of a multifunctional vacuum sealer according to an embodiment of the utility model;

[0029] Figure 5 This is a partial internal schematic diagram of the multifunctional vacuum sealer according to an embodiment of the utility model;

[0030] Figure 6 This is a schematic diagram of the internal vacuum sealing structure of the multifunctional vacuum sealing machine of the utility model embodiment;

[0031] Figure 7 This is a pipeline connection diagram of a vacuum pump assembly of a multifunctional vacuum sealer according to an embodiment of the utility model;

[0032] Figure 8 Schematic diagram of heat sealing of the cavity type vacuum sealing structure of the embodiment of the utility model.

[0033] Reference numerals:

[0034] Shell 100, first vacuum chamber 101, second vacuum chamber 102, sealing strip 110, cutter assembly 120,

[0035] Vacuum chamber cover plate 210, water tank 220, opening and closing pump 230, downward pressure cylinder 240,

[0036] Cavity exhaust port 310, heating element assembly 320, sealing panel 330, silicone pressure strip 331, bag opening clamping assembly 340, clamping base 341, bag opening clamping plate 342, closing cylinder 350, ejector rod 351, silicone protective cover 352,

[0037] Vacuum pump assembly 400, reversing valve 410,

[0038] Power supply unit 510 and control panel 520 . DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, top, bottom, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0042] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0043] Reference below Figure 1-Figure 8 A multifunctional vacuum sealer according to an embodiment of the utility model is described.

[0044] like Figure 1-Figure 8 As shown, the multifunctional vacuum sealer includes a housing 100, the outer wall of which is made of metal or plastic material to meet the requirements of different use environments. A first vacuum chamber 101 is arranged on the side wall of the housing 100, and a second vacuum chamber 102 is arranged on the top of the housing 100.

[0045] Specifically, an inner vacuum sealing structure is provided in the first vacuum chamber 101, and the inner vacuum sealing structure is used to vacuum seal items without liquid, and is suitable for sealed bags with inner patterns. The inner vacuum sealing structure can seal sealed bags of any length, and there is no limit on the length of the sealed bags.

[0046] It also includes a cavity vacuum sealing structure, including a cavity exhaust port 310 extending into the second vacuum cavity 102, a heating element assembly 320 disposed in the second vacuum cavity 102, and a sealing panel 330 hinged to one side of the second vacuum cavity 102. The cavity exhaust port 310 can evacuate the entire second vacuum cavity 102, so that the sealing bag in the sealed cavity is gradually in a vacuum state.

[0047] The vacuum pump assembly 400 is included. The vacuum pump assembly 400 is disposed in the housing 100 and is located at the bottom of the housing 100. It can free up more space above the housing 100, which is conducive to increasing the volume of the second vacuum chamber 102. The vacuum pump assembly 400 is connected to the inner vacuum sealing structure and the cavity vacuum sealing structure respectively. Specifically, the cavity vacuum port 310 in the cavity vacuum sealing structure is connected to the vacuum pump assembly 400. In order to ensure the vacuum efficiency of the vacuum sealer, the vacuum pump assembly 400 can only control either the inner vacuum sealing structure or the cavity vacuum sealing structure at a time.

[0048] In this embodiment, the vacuum pump assembly 400 uses a four-head vacuum pump. In other embodiments, a vacuum pump with higher power can be selected according to power requirements.

[0049] The control assembly also includes a power supply unit 510 and a control panel 520. The power supply unit 510 is disposed in the housing 100. The control panel 520 is disposed in the power supply unit 510 and is electrically connected to the inner vacuum sealing structure, the cavity vacuum sealing structure and the vacuum pump assembly 400 respectively. The control panel 520 is disposed on the inner side of the upper half of the housing 100. Specifically, the control panel 520 is disposed between the inner vacuum sealing structure and the cavity vacuum sealing structure, and is located on one side of the top of the housing 100. The control panel 520 is tilted to facilitate the user to operate the panel.

[0050] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, a circle of sealing strips 110 is disposed around the periphery of the second vacuum chamber 102 . When the sealing panel 330 and the second vacuum chamber 102 are closed, the interior of the second vacuum chamber 102 forms a sealed state.

[0051] Specifically, when the second vacuum chamber 102 is in a vacuum state, in order to prevent the closed gap between the sealing panel 330 and the second vacuum chamber 102 from affecting the vacuum efficiency, a circle of sealing strips 110 is arranged between the two to fill the gap and achieve a complete sealing effect, thereby effectively improving the vacuum efficiency of the second vacuum chamber 102.

[0052] In some embodiments of the present invention, Figure 1 As shown, the sealing panel 330 is made of a transparent material, and when the sealing panel 330 and the second vacuum chamber 102 are closed, the vacuum state can be observed through the sealing panel 330. Specifically, the sealing panel 330 is made of a transparent tempered glass panel, which ensures the structural strength while being able to observe the internal vacuum state, so that the user can observe at any time whether the bag opening of the sealing bag is clamped in place or whether the sealing effect reaches the expected effect.

[0053] In some embodiments of the present invention, Figure 1-Figure 4 As shown, it includes a cutter assembly 120, the bottom of the cutter assembly 120 is hinged to the housing 100, the middle is connected to the sealing panel 330, and the top is used for cutting the sealed bag.

[0054] Specifically, the bottom of the cutter assembly 120 is used as a rotating shaft structure, the bottom of the cutter assembly 120 is hinged to the housing 100, and the middle of the cutter assembly 120 is used to fix and install the sealing panel 330. When the sealing panel 330 is opened, the bottom of the cutter assembly 120 is used as the rotation center to turn over, and the sealing panel 330 and the cutter assembly 120 move synchronously. A conventional cutter is provided on the top of the cutter assembly 120 to cut the length of the sealed bag.

[0055] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the cavity vacuum sealing structure includes a bag opening pressing assembly 340, and the bag opening pressing assembly 340 is arranged on one side of the heating element assembly 320. The bag opening pressing assembly 340 includes a pressing base 341 and a bag opening pressing plate 342, and the bag opening pressing plate 342 is hinged to the pressing base 341. When the bag opening of the sealed bag is laid on the top of the pressing base 341, the bag opening pressing plate 342 flips over to press the bag opening of the sealed bag.

[0056] Specifically, in this embodiment, the clamping base 341 is integrally formed with the housing 100, and one side of the bag opening pressure plate 342 is hinged to the clamping base 341. The bag opening of the sealed bag passes through the heating element assembly 320 and is laid on the surface of the clamping base 341. The bag opening pressure plate 342 is pressed down to fix the bag opening of the sealed bag between the clamping base 341 and the bag opening pressure plate 342. The clamping block between the bag opening pressure plate 342 and the clamping base 341 adopts point-to-point contact, that is, when the sealed bag opening is clamped, the bag opening pressure plate 342 only clamps several points on the bag opening side, and the rest of the bag opening is in an open state, which does not affect the subsequent vacuuming operation.

[0057] In some embodiments of the present invention, Figure 5 and Figure 7 As shown, a closing cylinder 350 for driving the heating element assembly 320 to close is provided at the bottom of the heating element assembly 320, and a silicone strip 331 connected to the sealing panel 330 is provided at the top. The closing cylinder 350 is connected to the vacuum pump assembly 400, and the vacuum pump assembly 400 drives the closing cylinder 350 to push upward, thereby lifting the heating element assembly 320 to move upward so that the opening of the sealing bag is pressed between the silicone strip 331 and the heating element assembly 320 to achieve heating and sealing of the sealing bag.

[0058] In a further embodiment, Figure 8As shown, the push rod 351 of the closing cylinder 350 is made of metal material, and the push rod 351 is sleeved with a silicone protective cover 352. The silicone protective cover 352 abuts against the bottom of the heating element assembly 320. When the closing cylinder 350 is pushed out, the heating element assembly 320 is pushed up and hits the silicone pressure strip 331, and the push is continued. As the force increases, the push rod 351 is then pushed out from the silicone protective cover 352 and contacts the bottom electrode of the heating element assembly 320 to drive the heating element assembly 320 to heat.

[0059] Specifically, the heating and sealing principle and structure of the heating element assembly 320 are technical solutions well known to those skilled in the art and will not be described in detail in this embodiment. The closing cylinder 350 is controlled by the vacuum pump assembly 400. When the vacuum degree in the second vacuum chamber 102 reaches a specified value, the heating element assembly 320 is heated, and the vacuum pump assembly 400 pushes the heating element assembly 320 to clamp the bag opening of the sealing bag to achieve the sealing operation. First, the heating element assembly 320 is pushed to press the bag opening, and then the heating and sealing bag opening are started. There is also a silicone protective cover 352 as a protective structure. As long as the heating element assembly 320 and the silicone pressure strip 331 do not press the bag opening, the electrode of the push rod 351 of the closing cylinder 350 cannot touch the electrode of the heating element assembly 320, and the heating cannot be started.

[0060] The silicone protective cover 352 is used as the electrode protection part of the closed cylinder 350. During the normal air extraction process, the silicone protective cover 352 contacts the bottom of the heating element assembly 320. At this time, the heating element assembly 320 and the push rod 351 are not yet connected, and there will be no false heating. When heating is required, the closed cylinder 350 pushes up the push rod 351, and the heating element assembly 320 contacts the silicone pressure strip 331. The push is continuously applied, and the push rod 351 extends from the silicone protective cover 352 and contacts the electrode of the heating element assembly 320, thereby conducting and heating the heating element assembly 320.

[0061] In some embodiments of the present invention, Figure 5-Figure 7 As shown, the internal vacuum sealing structure includes a vacuum chamber cover plate 210, an opening and closing pump 230 for driving the vacuum chamber cover plate 210 to be pressed downward, and a water tank 220 disposed below the vacuum chamber cover plate 210. A downward pressing cylinder 240 is disposed on the top of the vacuum chamber cover plate 210, and the vacuum pump drives the downward pressing cylinder 240 to close the vacuum chamber cover plate 210 and the water tank 220 to form a sealed cavity; the vacuum pump assembly 400 is connected to the vacuum chamber cover plate 210, and when the vacuum chamber cover plate 210 is closed, the vacuum pump assembly 400 evacuates the sealed cavity.

[0062] Specifically, the user places the mouth of the sealed bag between the water tank 220 and the vacuum chamber cover plate 210, and the opening and closing pump 230 closes the vacuum chamber cover plate 210 so that the mouth of the bag is in the sealed cavity. In order to ensure the vacuuming power of the vacuum pump assembly 400, the downward pressure of the vacuum chamber cover plate 210 is controlled by a separate opening and closing pump 230 to ensure the efficient operation of the vacuum pump assembly 400. The air in the vacuum cavity and the sealed bag is extracted by the vacuum pump assembly 400, and the liquid extracted from the sealed bag flows into the water tank 220. A heating sealing structure is also provided in the vacuum chamber cover plate 210. The heating sealing structure is a technical solution well known to those skilled in the art and will not be described in detail in this embodiment.

[0063] In a further embodiment, Figure 6 As shown, the water tank 220 is detachably connected to the first vacuum chamber 101. Specifically, the water tank 220 adopts a drawer structure, and the water tank 220 can be pulled out for easy cleaning.

[0064] In some embodiments of the present invention, Figure 5-Figure 7 As shown, a reversing valve 410 is respectively provided between the vacuum pump assembly 400 and the inner vacuum sealing structure and the cavity vacuum sealing structure. The reversing valve 410 is used to switch the vacuum pump assembly 400 to evacuate the corresponding vacuum cavity.

[0065] Specifically, the vacuum pump assembly 400 in this embodiment takes into account three working conditions: vacuuming the second vacuum chamber 102, driving the closing cylinder 350, and driving the internal vacuum sealing structure. The three working conditions operate independently. When the vacuum pump assembly 400 drives the internal vacuum sealing structure to work, the reversing valve 410 switches the pipeline state to connect the vacuum pump assembly 400 to the internal vacuum sealing structure. When the second vacuum chamber 102 is vacuumed, the reversing valve 410 connects the vacuum pump assembly 400 to the cavity-type air extraction port 310. When the heating element assembly 320 heats and seals the bag opening of the sealing bag, the reversing valve 410 connects the vacuum pump assembly 400 to the closing cylinder 350.

[0066] The number of reversing valves 410 is set according to actual needs. The utility model does not elaborate on the structure of the reversing valves 410. The switching pipeline connection of the reversing valve 410 is a technical solution well known to those skilled in the art and will not be described in detail in this embodiment.

[0067] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the second vacuum chamber 102 is a sunken space at the top of the housing 100. Specifically, the power supply unit 510 and the vacuum pump assembly 400 are both arranged downward, so that there is enough space below the second vacuum chamber 102 to extend into the housing 100, thereby increasing the volume of the second vacuum chamber 102 and being able to perform vacuum sealing operations on sealing bags of larger specifications.

[0068] In some embodiments of the present invention, a cooling fan is further disposed inside the housing 100 to dissipate heat inside.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A multifunctional vacuum sealer, comprising a housing (100), wherein a first vacuum chamber (101) is disposed on a side wall of the housing (100), and a second vacuum chamber (102) is disposed on the top; characterized in that: include: An internal vacuum sealing structure is arranged in the first vacuum chamber (101); A cavity vacuum sealing structure, comprising a cavity exhaust port (310) extending into the second vacuum cavity (102), a heating element assembly (320) arranged in the second vacuum cavity (102), and a sealing panel (330) hinged to one side of the second vacuum cavity (102); A vacuum pump assembly (400), the vacuum pump assembly (400) being in communication with the inner vacuum sealing structure and the cavity vacuum sealing structure respectively, and being used to control the inner vacuum sealing structure and the cavity vacuum sealing structure to realize a vacuuming function; The control component comprises a power supply unit (510) and a control panel (520), wherein the power supply unit (510) is electrically connected to the inner vacuum sealing structure, the chamber vacuum sealing structure and the vacuum pump component (400) respectively, and the control panel (520) is arranged on the inner side of the upper half of the shell (100).

2. The multifunctional vacuum sealer according to claim 1, characterized in that: A circle of sealing strips (110) is provided at the periphery of the second vacuum chamber (102); when the sealing panel (330) and the second vacuum chamber (102) are closed, a sealed state is formed inside the second vacuum chamber (102).

3. The multifunctional vacuum sealer according to claim 2, characterized in that: The sealing panel (330) is made of a transparent material, and when the sealing panel (330) and the second vacuum chamber (102) are closed, the vacuum state can be observed through the sealing panel (330).

4. The multifunctional vacuum sealer according to claim 1, characterized in that: It comprises a cutter assembly (120), the bottom of the cutter assembly (120) is hinged to the housing (100), the middle is connected to the sealing panel (330), and the top is used for cutting the sealing bag.

5. The multifunctional vacuum sealer according to claim 1, characterized in that: The cavity vacuum sealing structure comprises a bag opening pressing assembly (340), wherein the bag opening pressing assembly (340) is arranged on one side of the heating element assembly (320); the bag opening pressing assembly (340) comprises a pressing base (341) and a bag opening pressing plate (342); the bag opening pressing plate (342) is hinged to the pressing base (341); when the bag opening of the sealed bag is laid on the top of the pressing base (341), the bag opening pressing plate (342) flips over to press the bag opening of the sealed bag.

6. The multifunctional vacuum sealer according to claim 1, characterized in that: The bottom of the heating element assembly (320) is provided with a closing cylinder (350) for driving the heating element assembly (320) to close, and the top is provided with a silicone strip (331) connected to the sealing panel (330); the closing cylinder (350) is connected to the vacuum pump assembly (400); the vacuum pump assembly (400) drives the closing cylinder (350) to push upward, thereby pushing up the heating element assembly (320) to move upward so that the opening of the sealing bag is pressed between the silicone strip (331) and the heating element assembly (320) to achieve heating and sealing of the sealing bag; The push rod (351) of the closing cylinder (350) is made of metal material, and the push rod (351) is sleeved with a silicone protective sleeve (352). The silicone protective sleeve (352) abuts against the bottom of the heating element component (320). When the closing cylinder (350) is pushed out, it pushes the heating element component (320) up and hits the silicone pressure strip (331), and continues to push out. The force increases, and then the push rod (351) is pushed out from the silicone protective sleeve (352) and contacts the bottom electrode of the heating element component (320) to drive the heating element component (320) to heat.

7. The multifunctional vacuum sealer according to any one of claims 1 to 6, characterized in that: The internal vacuum sealing structure comprises a vacuum chamber cover plate (210), an opening and closing pump (230) for driving the vacuum chamber cover plate (210) to be pressed downward, and a water tank (220) arranged below the vacuum chamber cover plate (210); A downward pressure cylinder (240) is provided on the top of the vacuum chamber cover plate (210), and the vacuum pump drives the downward pressure cylinder (240) to close the vacuum chamber cover plate (210) and the water tank (220) to form a sealed cavity; The vacuum pump assembly (400) is in communication with the vacuum chamber cover plate (210), and when the vacuum chamber cover plate (210) is closed, the vacuum pump assembly (400) evacuates the sealed chamber.

8. The multifunctional vacuum sealer according to claim 7, characterized in that: The water tank (220) is detachably connected to the first vacuum chamber (101).

9. The multifunctional vacuum sealer according to claim 1, characterized in that: A reversing valve (410) is provided between the vacuum pump assembly (400), the inner vacuum sealing structure and the cavity vacuum sealing structure, respectively. The reversing valve (410) is used to switch the vacuum pump assembly (400) to evacuate the corresponding vacuum cavity.

10. The multifunctional vacuum sealer according to claim 1, characterized in that: The second vacuum chamber (102) is a sunken space at the top of the shell (100).

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