Vacuum sealing device for food packaging

Abstract

The utility model relates to the technical field of food packaging, in particular to a vacuum sealing device for food packaging, which comprises an upper cover and a lower cover which are rotatably connected through a pin shaft, and further comprises two vacuum cavities which are respectively arranged on opposite sides of the upper cover and the lower cover and are used for manufacturing a negative pressure space; the vacuum pump is arranged on the lower cover and is used for pumping out a cavity in the vacuum cavity and forming negative pressure; the packaging bag groove is formed in the side, away from the pin shaft, of the upper cover and the lower cover and used for containing a packaging bag during vacuum sealing; the two heat sealing modules are arranged in the two packaging bag grooves correspondingly; the locking mechanism comprises two mounting blocks, a locking unit and an unlocking unit, the two mounting blocks are fixedly arranged on the two sides of the top of the lower cover, and mounting grooves matched with the mounting blocks are formed in the bottom of the upper cover. According to the utility model, the upper cover and the lower cover can be conveniently and quickly locked, meanwhile, the operation can be carried out by a single hand, the operation difficulty and the labor intensity of workers are reduced, and the vacuum sealing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of food packaging technology, specifically a vacuum sealing device for food packaging. Background Technology

[0002] Vacuum bags, also known as depressurized packaging, involve removing all the air from the packaging container and sealing it to maintain a high depressurization state inside the bag. The scarcity of air is equivalent to a low-oxygen effect, which prevents microorganisms from surviving, thus ensuring the freshness of the fruit and preventing disease and rot.

[0003] In existing technology, staff need to open the top cover first, put the opening of the packaging bag in, close the top and bottom covers, and press the top cover with their hands while starting the vacuum pump to create a vacuum inside the packaging bag. Staff need to keep pressing, otherwise the air extraction effect will be reduced. Therefore, we have introduced a vacuum sealing device for food packaging. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum sealing device for food packaging, which can quickly and easily lock the upper and lower covers, and can be operated with one hand, reducing the difficulty of operation and the labor intensity of workers, and improving the vacuum sealing effect, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A vacuum sealing device for food packaging includes an upper cover and a lower cover, which are rotatably connected by a pin, and further includes:

[0007] Vacuum chambers, two of which are respectively located on opposite sides of the upper and lower covers, are used to create negative pressure spaces;

[0008] A vacuum pump, located on the lower cover, is used to extract the air from the vacuum chamber and create negative pressure.

[0009] The packaging bag slot is located on the side of the upper and lower covers away from the pin and is used to accommodate the packaging bag during vacuum sealing.

[0010] The heat sealing modules are respectively disposed in the two packaging bag slots;

[0011] The locking mechanism includes two mounting blocks, a locking unit, and an unlocking unit. The two mounting blocks are fixedly mounted on both sides of the top of the lower cover, and the bottom of the upper cover is provided with mounting grooves that cooperate with the mounting blocks, for quickly locking or unlocking the upper cover and the lower cover.

[0012] As a further embodiment of this utility model, the locking unit includes a locking block, and a sliding groove is provided on one side of the two mounting slots opposite each other. The locking block is slidably disposed in the sliding groove, and a spring is provided at the bottom of the sliding groove.

[0013] One end of the locking block extends outside the slide groove, and the side wall of the mounting block is provided with a locking groove that cooperates with the locking block.

[0014] As a further embodiment of this utility model, the unlocking unit includes a rotating shaft and a pull rope. The upper cover has a rectangular cavity located between two mounting slots. A through hole is provided between the rectangular cavity and the mounting slots. The rotating shaft is rotatably disposed inside the rectangular cavity, and one end of the rotating shaft extends through to the outside of the rectangular cavity.

[0015] One end of the pull rope is fixedly connected to the locking block, and the other end of the pull rope passes through the through hole and is fixedly connected to the rotating shaft.

[0016] As a further embodiment of this utility model, a rotating wheel is fixedly provided at one end of the rotating shaft located outside the upper cover, which facilitates the rotation of the rotating shaft.

[0017] As a further embodiment of this utility model, the circumferential wall of the rotating wheel is uniformly provided with multiple anti-slip grooves to improve the friction of the circumferential wall of the rotating wheel.

[0018] As a further embodiment of this invention, the locking block has a chamfer at the end away from the rectangular cavity to facilitate the installation block pushing the locking block.

[0019] As a further embodiment of this invention, the pull rope is made of nylon, which improves its strength and service life.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This vacuum sealing device for food packaging comprises a lower cover, a rotating wheel, a packaging bag slot, an upper cover, a locking block, a heat sealing module, a vacuum chamber, a vacuum pump, a mounting block, a pull rope, a rotating shaft, and a spring. Rotating the rotating wheel drives the rotating shaft to rotate. The pull rope, wound around the rotating shaft, pulls the locking block, causing it to compress the spring and move to the outside of the locking slot. At this point, the upper cover opens via the rotating wheel and shaft, allowing the opening of the packaging bag to be placed in the vacuum chamber. The upper cover is then closed, and the mounting block is inserted into the mounting slot. The mounting block, with its chamfered edge, pushes the locking block to compress the spring. When the locking block aligns with the locking slot, the spring pushes the locking block into the locking slot, locking the upper and lower covers. The vacuum pump is then activated to evacuate the air from the vacuum chamber. After evacuation, the heat sealing module is activated to heat seal the opening of the packaging bag. This allows for quick and easy locking of the upper and lower covers, and can be operated with one hand, reducing operational difficulty and worker fatigue while improving the vacuum sealing effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a vacuum sealing device used for food packaging.

[0023] Figure 2 This is a schematic diagram of the structure of a vacuum sealing device used for food packaging after it has been opened.

[0024] Figure 3 This is a structural diagram of the locking and unlocking mechanisms.

[0025] Figure 4 for Figure 3 An enlarged schematic diagram of part A in the middle.

[0026] In the diagram: 1. Lower cover; 2. Rotary wheel; 3. Packaging bag slot; 4. Upper cover; 5. Locking block; 6. Heat sealing module; 7. Vacuum chamber; 8. Vacuum pump; 9. Mounting block; 10. Pull rope; 11. Rotating shaft; 12. Spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 4 This utility model provides a technical solution:

[0029] A vacuum sealing device for food packaging includes an upper cover 4 and a lower cover 1, which are rotatably connected by a pin. The device also includes:

[0030] Vacuum chamber 7, two vacuum chambers 7 are respectively set on the opposite side of the upper cover 4 and the lower cover 1, and are used to create negative pressure space;

[0031] A vacuum pump 8, located on the lower cover 1, is used to extract the air from the vacuum chamber 7 and create a negative pressure.

[0032] The packaging bag slot 3 is located on the side of the upper cover 4 and the lower cover 1 away from the pin, and is used to accommodate the packaging bag during vacuum sealing;

[0033] Heat sealing module 6, two heat sealing modules 6 are respectively set in two packaging bag slots 3;

[0034] The locking mechanism includes two mounting blocks 9, a locking unit and an unlocking unit. The two mounting blocks 9 are fixedly installed on the top sides of the lower cover 1, and the bottom of the upper cover 4 is provided with mounting grooves that cooperate with the mounting blocks 9, for quickly locking or unlocking the upper cover 4 and the lower cover 1.

[0035] Reference Figure 3 and Figure 4 The locking unit includes a locking block 5, and a sliding groove is provided on one side of the two mounting slots opposite each other. The locking block 5 is slidably disposed in the sliding groove, and a spring 12 is provided at the bottom of the sliding groove.

[0036] One end of the locking block 5 extends outside the slide groove, and the side wall of the mounting block 9 is provided with a locking groove that cooperates with the locking block 5. The end of the locking block 5 away from the rectangular cavity is provided with a chamfer to facilitate the mounting block 9 to push the locking block 5.

[0037] Reference Figure 3 and Figure 4 The unlocking unit includes a rotating shaft 11 and a pull rope 10. The upper cover 4 has a rectangular cavity located between two mounting slots. A through hole is provided between the rectangular cavity and the mounting slots. The rotating shaft 11 is rotatably installed in the rectangular cavity, and one end of the rotating shaft 11 extends through to the outside of the rectangular cavity.

[0038] One end of the pull rope 10 is fixedly connected to the locking block 5, and the other end of the pull rope 10 passes through the through hole and is fixedly connected to the rotating shaft 11.

[0039] Reference Figure 3 The rotating shaft 11 is fixedly provided with a rotating wheel 2 at one end outside the upper cover 4, which facilitates the rotation of the rotating shaft 11. The rotating wheel 2 has multiple anti-slip grooves evenly provided on its circumferential wall to improve the friction of the rotating wheel 2.

[0040] Reference Figure 3 The pull rope 10 is made of nylon rope, which improves its strength and service life.

[0041] In use, rotating wheel 2 drives rotating shaft 11 to rotate. While pulling rope 10 is wrapped around rotating shaft 11, it pulls locking block 5. Locking block 5 compresses spring 12 and moves to the outside of locking groove. At this time, rotating wheel 2 and rotating shaft 11 drive upper cover 4 to open. Then, place the opening of the packaging bag in vacuum chamber 7, close upper cover 4, and insert mounting block 9 into mounting groove. Mounting block 9 pushes locking block 5 to compress spring 12 through chamfering. When locking block 5 corresponds to the position of locking groove, spring 12 pushes locking block 5 into locking groove. At this time, upper cover 4 and lower cover 1 are locked. Vacuum pump 8 is started to evacuate the air in vacuum chamber 7. After evacuation, heat sealing module 6 is started to heat seal the opening of packaging bag. This makes it easy to quickly lock upper cover 4 and lower cover 1. At the same time, it can be operated with one hand, reducing the difficulty of operation and the labor intensity of workers, and improving the vacuum sealing effect.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum sealing device for food packaging comprising an upper cover and a lower cover, the upper cover and the lower cover being pivotally connected by a pin, characterized in that: Also includes: Vacuum chambers, two of which are respectively located on opposite sides of the upper and lower covers, are used to create negative pressure spaces; A vacuum pump, located on the lower cover, is used to extract the air from the vacuum chamber and create negative pressure. The packaging bag slot is located on the side of the upper and lower covers away from the pin and is used to accommodate the packaging bag during vacuum sealing. The heat sealing modules are respectively disposed in the two packaging bag slots; The locking mechanism includes two mounting blocks, a locking unit, and an unlocking unit. The two mounting blocks are fixedly mounted on both sides of the top of the lower cover, and the bottom of the upper cover is provided with mounting grooves that cooperate with the mounting blocks, for quickly locking or unlocking the upper cover and the lower cover.

2. A vacuum sealing device for food packaging according to claim 1, characterized in that: The locking unit includes a locking block, and a sliding groove is provided on one side of the two mounting slots opposite each other. The locking block is slidably disposed in the sliding groove, and a spring is provided at the bottom of the sliding groove. One end of the locking block extends outside the slide groove, and the side wall of the mounting block is provided with a locking groove that cooperates with the locking block.

3. A vacuum sealing device for food packaging according to claim 2, characterized in that: The unlocking unit includes a rotating shaft and a pull rope. The upper cover has a rectangular cavity located between two mounting slots. A through hole is provided between the rectangular cavity and the mounting slots. The rotating shaft is rotatably disposed in the rectangular cavity, and one end of the rotating shaft extends through to the outside of the rectangular cavity. One end of the pull rope is fixedly connected to the locking block, and the other end of the pull rope passes through the through hole and is fixedly connected to the rotating shaft.

4. A vacuum sealing device for food packaging according to claim 3, characterized in that: The rotating shaft is fixed with a wheel at one end outside the upper cover to facilitate the rotation of the shaft.

5. A vacuum sealing device for food packaging according to claim 4, characterized in that: The circumferential wall of the rotating wheel is uniformly provided with multiple anti-slip grooves to improve the friction of the circumferential wall of the rotating wheel.

6. A vacuum sealing device for food packaging according to claim 5, characterized in that: The locking block has a chamfer at the end away from the rectangular cavity to facilitate the installation block pushing the locking block.

7. A vacuum sealing device for food packaging according to claim 6, characterized in that: The pull rope is made of nylon, which improves its strength and service life.

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