Floating type vacuum sealer

Abstract

The utility model discloses a floating type vacuum sealing machine, belongs to the technical field of sealing machines, and aims to overcome the defect that an existing sealing machine is prone to poor sealing. The sealing machine comprises a base and a cover body, the cover body is rotationally connected with the base, a first sealing ring is arranged on the base, a second sealing ring is arranged on the cover body, one of the base and the cover body is provided with a rotating shaft, the other one is provided with a strip-shaped hole, and the rotating shaft is installed on the strip-shaped hole in an up-down moving mode so that the cover body can be provided with a first cover closing position and a second cover closing position relative to the base. When the cover body is located at the first cover closing position, the first sealing ring makes contact with the second sealing ring, and when the sealing machine is vacuumized, the cover body moves downwards from the first cover closing position to the second cover closing position relative to the base. The first sealing ring and the second sealing ring are in a small deformation state for a long time, the situation that deformation is difficult to recover is not prone to occurring, good elasticity is kept for a long time, good sealing is kept, and the service life of the sealing machine is longer.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing machines and relates to a floating vacuum sealing machine. Background Art

[0002] Chinese patent literature discloses a utility model patent for a vacuum sealer with a detachable lower seat, with the authorization announcement number CN208868361U. The sealer includes a lower seat and an upper cover. The bottom surface of the upper cover is provided with a heating strip and an upper vacuum groove. The top surface of the lower seat is provided with a lower vacuum groove. The upper vacuum groove and the lower vacuum groove form a vacuum chamber. The lower upper vacuum groove includes a sealing strip, which is arranged around the outer edge of the upper vacuum groove. The sealing strip protrudes and is installed on the lower bottom surface of the upper cover. The lower vacuum groove is recessed downward to form a chamber. A sealing groove is arranged around the outer edge of the chamber. The position of the sealing groove corresponds to that of the sealing strip. The shape of the sealing groove and the sealing strip is matched and sealed. After the sealer is closed, the sealer forms a vacuum chamber through close contact between the two sealing strips. The two sealing strips will produce a large deformation to ensure the sealing effect. However, when the sealer is stored, the sealer will still be in a closed state, so that the two sealing strips remain in a large deformation state for a long time. The two sealing strips are prone to difficulty in restoring the deformation. The elastic force of the sealing strip is damaged, the sealing effect is reduced, and poor sealing is prone to occur. Summary of the invention

[0003] The utility model proposes a floating vacuum sealer to solve the problems existing in the prior art, aiming to overcome the defect that the prior sealer is prone to poor sealing.

[0004] The utility model is achieved in this way:

[0005] A floating vacuum sealer comprises a base and a cover, wherein the cover is rotatably connected to the base so that the cover can be rotated to open or pressed against the base, a first sealing ring is arranged on the base, and a second sealing ring is arranged on the cover, wherein the first sealing ring and the second sealing ring abut against each other to form a vacuum chamber;

[0006] One of the base and the cover body is provided with a rotating shaft, and the other is provided with a strip hole. The rotating shaft is installed on the strip hole so as to be movable up and down, so that the cover body has a first closing position and a second closing position relative to the base. When the cover body is in the first closing position, the first sealing ring is in contact with the second sealing ring. When the sealing machine is vacuuming, the cover body moves downward from the first closing position to the second closing position relative to the base.

[0007] The rotating shaft can move up and down in the strip hole, so that the cover body can float up and down relative to the base, and the cover body has a first closing position and a second closing position relative to the base. When the cover body is closed on the base, the sealing machine has not entered the vacuum state, and the cover body is in the first closing position. At this time, under the elastic force of the first sealing ring and the second sealing ring, the cover body is in a high position, and the contact between the first sealing ring and the second sealing ring can ensure the airtightness of the vacuum chamber, which is convenient for the smooth vacuuming. At the same time, the abutment force of the first sealing ring and the second sealing ring is small, and the user can easily perform the closing operation, thereby improving the user experience. When the cover body is closed on the base, the sealing machine enters the vacuum state, and the vacuum pump in the sealing machine makes the air pressure of the vacuum chamber form a negative pressure state relative to the atmospheric pressure. Under the action of the atmospheric pressure, the cover body overcomes the elastic force of the first sealing ring and the second sealing ring and moves downward, and the cover body reaches the second closing position. At this time, the first sealing ring and the second sealing ring abut more closely, further ensuring the airtightness of the vacuum chamber, which is convenient for the vacuum chamber to form a larger negative pressure and improve the vacuum effect.

[0008] When the sealing machine is stored, since the vacuum chamber is not in a negative pressure state, the cover body is in the first closing position, and the first sealing ring and the second sealing ring are in an initial sealing state with a small deformation. Only when the sealing bag needs to be vacuumed to make the vacuum chamber in a negative pressure state and the cover body is in the second closing position, the first sealing ring and / or the second sealing ring will produce a larger deformation, that is, the first sealing ring and the second sealing ring are in a state of small deformation for a long time, and are not prone to difficulty in recovering the deformation. They maintain good elasticity for a long time, maintain good sealing, and extend the service life of the sealing machine.

[0009] Preferably, the rotating shaft is detachably fixed to the base or the cover; the detachable rotating shaft facilitates the assembly of the cover and the base.

[0010] Alternatively, the rotating shaft is integrally formed on the base or the cover.

[0011] Preferably, the rotating shaft includes a first shaft body and a second shaft body fixed on the base, the cover body has a connecting portion, both ends of the connecting portion have strip holes, and the first shaft body and the second shaft body are respectively embedded in the strip holes at both ends of the connecting portion. The rotating shaft is fixed on the base, and the strip holes are arranged on the cover body, which is conducive to reducing the weight of the cover body and facilitating the flexibility of lifting and lowering the cover body. The rotating shaft is divided into two sections of shaft bodies, and a shorter rotating shaft can be used to cooperate with the strip holes to reduce the friction between the rotating shaft and the hole wall of the strip hole, which is conducive to the flexibility of lifting and lowering the cover body.

[0012] Preferably, the cover body is provided with a connecting portion, the strip hole passes through the connecting portion, the base is provided with hinge holes at both ends corresponding to the strip hole, the rotating shaft passes through the strip hole, and the two ends of the rotating shaft are rotatably connected to the hinge holes respectively. The rotating shaft cooperates with the hinge hole of the base to realize the rotation of the cover body relative to the base, and the rotating shaft cooperates with the strip hole of the cover body to realize the lifting of the cover body relative to the base. The rotation and lifting of the cover body relative to the base are realized by different positions of the rotating shaft, which is convenient for combining different requirements of rotation and lifting, so that different friction forces can be used for rotation cooperation and lifting cooperation. For example, the rotating shaft and the hinge hole adopt transition cooperation, so that there is a large friction force between the rotating shaft and the hole wall of the hinge hole, so that the opening and closing of the cover has a certain damping feeling, avoiding the phenomenon of unstable opening of the cover and too fast closing speed; the rotating shaft and the strip hole adopt clearance cooperation to improve the flexibility of lifting and lowering of the cover.

[0013] Preferably, at least one of the first sealing ring and the second sealing ring has a sealing lip, and when the cover body is in the first closing position, the sealing lip contacts the first sealing ring or the second sealing ring. The sealing lip has good deformation ability, so that when the cover body is in the first closing position, the extrusion force of the first sealing ring and the second sealing ring in contact is small, which is convenient for easy closing. The sealing lip has good deformation ability, so that the cover body has a larger moving space, and when the cover body moves from the first closing position to the second closing position, the extrusion force of the first sealing ring and the second sealing ring is effectively increased, and the first sealing ring and the second sealing ring are more closely abutted to achieve better sealing, so that the vacuum chamber can generate a larger negative pressure. The sealing lip has good deformation ability, which provides a larger deformation space for the cover body to move up and down, so that when the cover body is in the first closing position, the first sealing ring and the second sealing ring can still maintain a good seal, which is convenient for vacuuming the vacuum chamber.

[0014] Preferably, the upper surface of the first sealing ring is flat, and the second sealing ring has a sealing lip, which abuts against the upper surface of the first sealing ring. This is conducive to the sealing lip being able to fully contact with the upper surface of the first sealing ring when the cover body is in the first closing position, thereby avoiding local air leakage.

[0015] Preferably, the second sealing ring includes a sealing body and a sealing lip, wherein the sealing lip is connected to the inner side of the sealing body and extends obliquely toward the outer side of the sealing body. When the cover is in the first closing position, in the initial stage of the vacuum chamber forming a negative pressure, the vacuum chamber will form a suction force on the sealing lip, so that the sealing lip tends to fold toward the vacuum chamber. Since the sealing lip needs to swing downward to fold toward the vacuum chamber, the first sealing ring can prevent the sealing lip from swinging downward, so that the free end of the sealing lip is more closely abutted against the first sealing ring, thereby improving the sealing performance of the sealing lip and the first sealing ring.

[0016] Preferably, when the cover is in the first closing position, the free end of the sealing lip abuts against the first sealing ring, and a gap exists between the connecting end of the sealing lip and the first sealing ring. When the cover moves downward, only the sealing lip needs to be deformed, and the sealing body does not need to be deformed. Due to the strong deformation ability of the sealing lip, the cover moves downward more easily, and the closing operation of the sealing machine is also easier.

[0017] Preferably, when the cover body is in the second closing position, the free end and the connecting end of the sealing lip abut against the first sealing ring at the same time, so that the first sealing ring and the second sealing ring are in full contact, thereby improving the sealing effect.

[0018] Preferably, the first sealing ring and / or the second sealing ring has a deformation cavity running through the first sealing ring and / or the second sealing ring. The deformation cavity enables the sealing ring to have better deformation ability, so that when the cover body is in the first closing position, the extrusion force of the first sealing ring and the second sealing ring in contact is small, which is convenient for easy closing. The deformation cavity enables the sealing ring to have better deformation ability, so that the cover body has a larger moving space. When the cover body moves from the first closing position to the second closing position, the extrusion force of the first sealing ring and the second sealing ring is effectively increased, and the first sealing ring and the second sealing ring are more closely abutted to achieve better sealing, so that the vacuum chamber can generate a greater negative pressure. The deformation cavity enables the sealing ring to have better deformation ability, and provides a larger deformation space for the cover body to move up and down, so that when the cover body is in the first closing position, the first sealing ring and the second sealing ring can still maintain a good seal, which is convenient for vacuuming the vacuum chamber.

[0019] The utility model provides a floating vacuum sealer. When the sealer is stored, since the vacuum chamber is not in a negative pressure state, the cover body is in the first closing position, and the first sealing ring and the second sealing ring are in an initial sealing state with a small deformation. Only when the sealing bag needs to be vacuumed to put the vacuum chamber in a negative pressure state and the cover body is in the second closing position, the first sealing ring and / or the second sealing ring will produce a large deformation, that is, the first sealing ring and the second sealing ring are in a small deformation state for a long time, and are not prone to difficulty in restoring the deformation. Good elasticity is maintained for a long time, good sealing is maintained, and the service life of the sealer is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The exploded structure diagram of the sealing machine;

[0021] Figure 2 It is a schematic diagram of the structure of the sealing machine when the cover is opened;

[0022] Figure 3 It is a structural schematic diagram of the sealing machine when the cover body is in the first closing position;

[0023] Figure 4 It is a structural schematic diagram of the sealing machine when the cover body is in the second closing position;

[0024] Figure 5 It is a three-dimensional diagram of the cutaway structure of the sealing machine;

[0025] Figure 6 It is a schematic diagram of the structure of the cover body.

[0026] Explanation of the accompanying drawings: 100, base; 110, vacuum chamber; 120, rotating shaft; 121, fixing part; 122, first shaft body; 123, second shaft body; 200, cover body; 210, second sealing ring; 211, sealing body; 212, sealing lip; 213, free end; 214, connecting end; 220, connecting part; 221, strip hole. DETAILED DESCRIPTION

[0027] The following will further describe the specific implementation of the utility model in combination with the accompanying drawings of the embodiments, so that the technical solution of the utility model is easier to understand and grasp. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0028] This embodiment provides a floating vacuum sealer, such as Figure 1 As shown in Figure 6, it includes a base 100 and a cover 200, the cover 200 is rotatably connected to the base 100 so that the cover 200 can be rotated to open or pressed onto the base 100, the base 100 is provided with a first sealing ring, which is not shown in the figure, and the cover 200 is provided with a second sealing ring 210, the first sealing ring and the second sealing ring 210 abut to form a vacuum chamber 110. The base 100 is provided with a vacuum pump connected to the vacuum chamber 110, which can evacuate the vacuum chamber 110, so that the vacuum chamber 110 forms a negative pressure state, and the opening of the sealing bag is in the vacuum chamber 110, thereby achieving vacuum treatment of the sealing bag. The base 100 is provided with a heating wire, and the cover 200 is provided with a pressure strip, which presses the sealing bag onto the heating wire. After the sealing bag is evacuated, the heating wire heats the sealing bag, and the sealing bag is sealed after cooling.

[0029] like Figure 1As shown in Figure 5, the base 100 is provided with a rotating shaft 120, and the cover 200 is provided with a strip hole 221. The rotating shaft 120 can be installed on the strip hole 221 so as to be movable up and down, so that the cover 200 has a first closing position and a second closing position relative to the base 100. When the cover 200 is in the first closing position, the first sealing ring and the second sealing ring 210 are in contact. When the sealing machine is vacuuming, the cover 200 moves downward from the first closing position to the second closing position relative to the base 100. In other optional embodiments, the rotating shaft 120 can also be set on the cover 200, and the strip hole 221 can also be set on the base 100.

[0030] The strip-shaped holes in this embodiment are waist-shaped holes. Figure 3 From the perspective of the waist-shaped hole, the up-down direction of the waist-shaped hole is the length direction of the waist-shaped hole, and the left-right direction of the waist-shaped hole is the width direction of the waist-shaped hole. In other optional embodiments, the strip-shaped hole can also be a rectangular hole.

[0031] The rotating shaft 120 can move up and down in the strip hole 221, so that the cover body 200 can float up and down relative to the base 100, and the cover body 200 has a first closing position and a second closing position relative to the base 100. Figure 3 As shown, when the cover 200 is closed on the base 100, the sealing machine has not entered the vacuum state, and the cover 200 is in the first closed position. At this time, under the elastic force of the first sealing ring and the second sealing ring 210, the cover 200 is in a high position, and the rotating shaft 120 is at the lower end of the strip hole 221. The contact between the first sealing ring and the second sealing ring 210 can ensure the airtightness of the vacuum chamber 110, which is convenient for the smooth vacuuming. At the same time, the contact force of the first sealing ring and the second sealing ring 210 is small, and the user can easily perform the cover closing operation, which improves the user experience. Figure 4 As shown, when the cover body 200 is closed on the base 100, the sealing machine enters a vacuum state, and the vacuum pump in the sealing machine makes the air pressure in the vacuum chamber 110 form a negative pressure state relative to the atmospheric pressure. Under the action of the atmospheric pressure, the cover body 200 overcomes the elastic force of the first sealing ring and the second sealing ring 210 and moves downward, and the cover body 200 reaches the second closing position. At this time, the first sealing ring and the second sealing ring 210 are more tightly abutted, which further ensures the sealing of the vacuum chamber 110, facilitates the vacuum chamber 110 to form a larger negative pressure, and improves the vacuum effect.

[0032] When the sealing machine is stored, since the vacuum chamber 110 is not in a negative pressure state, the cover body 200 is in the first closing position, and the first sealing ring and the second sealing ring 210 are in an initial sealing state with a small deformation. Only when the sealing bag needs to be vacuumed to make the vacuum chamber 110 in a negative pressure state and the cover body 200 is in the second closing position, the first sealing ring and / or the second sealing ring 210 will produce a larger deformation, that is, the first sealing ring and the second sealing ring 210 are in a small deformation state for a long time, and are not prone to difficulty in recovering the deformation. They maintain good elasticity for a long time, maintain a good seal, and extend the service life of the sealing machine.

[0033] like Figure 1 As shown, the rotating shaft 120 is detachably fixed to the base 100, and the detachable rotating shaft 120 facilitates the assembly of the cover 200 and the base 100. The rotating shaft 120 is provided with a fixing portion 121, and the fixing portion 121 is fixed to the base 100 by screws. In other optional embodiments, the rotating shaft 120 can also be integrally formed on the base 100 or the cover 200.

[0034] like Figure 1 As shown, the rotating shaft 120 includes a first shaft body 122 and a second shaft body 123 fixed on the base 100, and the cover body 200 has a connecting portion 220, and the two ends of the connecting portion 220 have strip holes 221, and the first shaft body 122 and the second shaft body 123 are respectively embedded in the strip holes 221 at the two ends of the connecting portion 220. The rotating shaft 120 is fixed on the base 100, and the strip holes 221 are arranged on the cover body 200, which is conducive to reducing the weight of the cover body 200 and facilitating the flexibility of lifting and lowering the cover body 200. The rotating shaft 120 is divided into two sections of shaft bodies, and a shorter rotating shaft 120 can be used to form a match with the strip holes 221, reducing the friction between the rotating shaft 120 and the hole wall of the strip holes 221, which is conducive to the flexibility of lifting and lowering the cover body 200. The strip holes 221 can be either two blind holes or a through hole that runs through the connecting portion 220.

[0035] The rotating shaft 120 of this embodiment is divided into two shaft bodies and fixed on the base 100. In other optional embodiments, the rotating shaft 120 can also be a shaft body and rotatably connected to the base 100. Specifically, the cover body 200 is provided with a connecting portion 220, the strip hole 221 passes through the connecting portion 220, the base 100 is provided with hinge holes at both ends corresponding to the strip hole 221, the rotating shaft 120 passes through the strip hole 221, and the two ends of the rotating shaft 120 are rotatably connected to the hinge holes. The rotating shaft 120 cooperates with the hinge hole of the base 100 to realize the rotation of the cover body 200 relative to the base 100, and the rotating shaft 120 cooperates with the strip hole 221 of the cover body 200 to realize the lifting of the cover body 200 relative to the base 100. The rotation and lifting of the cover body 200 relative to the base 100 are realized by different positions of the rotating shaft 120, which is convenient for combining different requirements of rotation and lifting, so that different friction forces can be used for rotation cooperation and lifting cooperation. For example, the rotating shaft 120 and the hinge hole adopt transition fit, so that there is a large friction between the rotating shaft 120 and the hole wall of the hinge hole, so that the opening and closing of the cover has a certain damping feeling, avoiding the phenomenon of unstable opening of the cover and too fast closing speed; the rotating shaft 120 and the strip hole 221 adopt clearance fit to improve the flexibility of lifting and lowering the cover body 200. In other optional embodiments, the rotating shaft 120 can also be fixed on the connecting portion 220 of the cover body 200, and two strip holes 221 are set on the base 100 corresponding to the two ends of the rotating shaft 120 respectively.

[0036] like Figure 1 As shown in Figure 6, the second sealing ring 210 has a sealing lip 212. When the cover body 200 is in the first closing position, the sealing lip 212 contacts the first sealing ring. The sealing lip 212 has good deformation ability, so that when the cover body 200 is in the first closing position, the extrusion force of the first sealing ring and the second sealing ring 210 in contact is small, which facilitates easy closing. The sealing lip 212 has good deformation ability, so that the cover body 200 has a larger moving space. When the cover body 200 moves from the first closing position to the second closing position, the extrusion force of the first sealing ring and the second sealing ring 210 is effectively increased, and the first sealing ring and the second sealing ring 210 are more closely abutted to achieve better sealing, so that the vacuum chamber 110 can generate a larger negative pressure. The sealing lip 212 has good deformation ability, providing a larger deformation space for the cover body 200 to move up and down, so that when the cover body 200 is in the first closing position, the first sealing ring and the second sealing ring 210 can still maintain a good seal, which is convenient for vacuuming the vacuum chamber 110.

[0037] In this embodiment, a sealing lip 212 is provided on the second sealing ring 210 alone, and the upper surface of the first sealing ring is provided flatly, and the sealing lip 212 abuts against the upper surface of the first sealing ring. This is beneficial for the sealing lip 212 to fully contact the upper surface of the first sealing ring when the cover body 200 is in the first closing position, thereby avoiding local air leakage. In other optional embodiments, the sealing lip 212 may also be provided on the first sealing ring alone or on both the first sealing ring and the second sealing ring 210.

[0038] like Figure 1 As shown in Figure 5, the second sealing ring 210 includes a sealing body 211 and a sealing lip 212, wherein the sealing lip 212 is connected to the inner side of the sealing body 211 and extends obliquely toward the outer side of the sealing body 211. When the cover 200 is in the first closed position, in the initial stage of the vacuum chamber 110 forming a negative pressure, the vacuum chamber 110 will form a suction force on the sealing lip 212, so that the sealing lip 212 tends to fold toward the vacuum chamber 110. Since the sealing lip 212 needs to swing downward to fold toward the vacuum chamber 110, the first sealing ring can prevent the sealing lip 212 from swinging downward, so that the free end 213 of the sealing lip 212 is more closely abutted against the first sealing ring, thereby improving the sealing performance of the sealing lip 212 and the first sealing ring. In other optional embodiments, the sealing lip 212 may also be connected to the outer side of the sealing body 211 , and the sealing lip 212 extends obliquely toward the inner side of the sealing body 211 .

[0039] like Figure 3 As shown, when the cover body 200 is in the first closing position, the free end 213 of the sealing lip 212 abuts against the first sealing ring, and a gap exists between the connecting end 214 of the sealing lip 212 and the first sealing ring. When the cover body 200 moves downward, only the sealing lip 212 needs to be deformed, and the sealing body 211 does not need to be deformed. Based on the strong deformation ability of the sealing lip 212, it is easier for the cover body 200 to move downward, and the closing operation of the sealing machine is also easier.

[0040] like Figure 4 As shown, when the cover body 200 is in the second closing position, the free end 213 and the connecting end 214 of the sealing lip 212 abut against the first sealing ring at the same time, so that the first sealing ring and the second sealing ring 210 are fully in contact, thereby improving the sealing effect.

[0041] In this embodiment, by providing a sealing lip 212 on the second sealing ring 210, the first sealing ring and the second sealing ring 210 can maintain a sealed contact during the lifting process of the cover body 200. In other optional embodiments, a deformation cavity can also be provided on the sealing ring. Specifically, the first sealing ring and / or the second sealing ring 210 have a deformation cavity that runs through the first sealing ring and / or the second sealing ring 210. The deformation cavity enables the sealing ring to have a better deformation ability, so that when the cover body 200 is in the first closing position, the extrusion force of the first sealing ring and the second sealing ring 210 in contact is small, which is convenient for easy closing. The deformation cavity enables the sealing ring to have a better deformation ability, so that the cover body 200 has a larger moving space. When the cover body 200 moves from the first closing position to the second closing position, the extrusion force of the first sealing ring and the second sealing ring 210 is effectively increased, and the first sealing ring and the second sealing ring 210 are more closely abutted to achieve better sealing, so that the vacuum chamber 110 can generate a larger negative pressure. The deformation cavity enables the sealing ring to have better deformation ability, providing a larger deformation space for the cover body 200 to move up and down, so that when the cover body 200 is in the first closing position, the first sealing ring and the second sealing ring 210 can still maintain a good seal, which facilitates the vacuuming of the vacuum chamber 110.

[0042] In the description of the present invention, it should be understood that the terms "center", "lateral", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "radial", "circumferential" and the like indicate orientations or positional relationships 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 should not be understood as a limitation on the present invention.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0044] Those skilled in the art should understand that although the implementation methods disclosed in the embodiments of the present invention are as above, the contents described are only implementation methods adopted to facilitate understanding of the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Any technician in the field to which the embodiments of the present invention belong may make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the embodiments of the present invention, but the scope of patent protection of the embodiments of the present invention shall still be subject to the scope defined in the attached claims.

Claims

1. A floating vacuum sealer, comprising a base and a cover, wherein the cover is rotatably connected to the base so that the cover can be rotated to open or pressed against the base, the base is provided with a first sealing ring, the cover is provided with a second sealing ring, the first sealing ring and the second sealing ring abut against each other to form a vacuum chamber; It is characterized in that One of the base and the cover body is provided with a rotating shaft, and the other is provided with a strip hole. The rotating shaft is installed on the strip hole so as to be movable up and down, so that the cover body has a first closing position and a second closing position relative to the base. When the cover body is in the first closing position, the first sealing ring is in contact with the second sealing ring. When the sealing machine is vacuuming, the cover body moves downward from the first closing position to the second closing position relative to the base.

2. A floating vacuum sealer according to claim 1, characterized in that: The rotating shaft is detachably fixed to the base or the cover; Alternatively, the rotating shaft is integrally formed on the base or the cover.

3. A floating vacuum sealer according to claim 1, characterized in that: The rotating shaft includes a first shaft body and a second shaft body fixed on the base, the cover body has a connecting portion, both ends of the connecting portion have strip holes, and the first shaft body and the second shaft body are respectively embedded in the strip holes at both ends of the connecting portion.

4. The floating vacuum sealer according to claim 1, characterized in that: The cover body is provided with a connecting portion, the strip hole passes through the connecting portion, the base is provided with hinge holes at both ends corresponding to the strip hole, the rotating shaft passes through the strip hole, and both ends of the rotating shaft are rotatably connected in the hinge holes respectively.

5. A floating vacuum sealer according to any one of claims 1 to 4, characterized in that: At least one of the first sealing ring and the second sealing ring has a sealing lip, and when the cover body is in the first closing position, the sealing lip contacts the first sealing ring or the second sealing ring.

6. The floating vacuum sealer according to claim 1, characterized in that: The upper surface of the first sealing ring is arranged flat, and the second sealing ring has a sealing lip, and the sealing lip abuts against the upper surface of the first sealing ring.

7. The floating vacuum sealer according to claim 1, characterized in that: The second sealing ring includes a sealing body and a sealing lip, wherein the sealing lip is connected to the inner side of the sealing body and extends obliquely toward the outer side of the sealing body.

8. The floating vacuum sealer according to claim 7, characterized in that: When the cover body is in the first closing position, the free end of the sealing lip abuts against the first sealing ring, and a gap exists between the connecting end of the sealing lip and the first sealing ring.

9. The floating vacuum sealer according to claim 7, characterized in that: When the cover body is in the second closing position, the free end and the connecting end of the sealing lip abut against the first sealing ring at the same time.

10. A floating vacuum sealer according to any one of claims 1 to 4, characterized in that: The first sealing ring and / or the second sealing ring has a deformation cavity penetrating through the first sealing ring and / or the second sealing ring.

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