Flip type vacuumizing fresh-keeping machine

Abstract

A flip type vacuum-pumping fresh-keeping machine comprises a main machine base body, an upper flip cover, a heating assembly and a vacuum-pumping assembly, an opening groove is formed in the front end of the main machine base body, the upper flip cover is hinged to the upper portion of the opening groove, a first vacuum-pumping cavity is formed between the bottom face of the upper flip cover and the opening groove, and the two sides of the bottom face of the upper flip cover are each provided with a telescopic assembly. The telescopic assembly comprises a flexible part forming a second vacuumizing cavity and a reset spring, the upper end of the flexible part is fixed to the upper turning cover, an opening is formed in the bottom face of the flexible part, the opening end face of the flexible part is supported on the opening groove in a sealed mode when the upper turning cover is turned downwards, and the vacuumizing assembly is connected with the second vacuumizing cavity through the pipeline switching device. The flexible part is vacuumized through the vacuumizing assembly so as to pull the upper turning cover to turn downwards, and the bottom face of the upper turning cover and the opening groove are connected in a sealed mode to form the first vacuumizing cavity. And the first vacuumizing cavity is vacuumized through the pipeline switching device, the structure is simple, and the production cost of equipment is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum fresh-keeping machine technical field, more specifically refers to a flip type vacuum fresh-keeping machine. BACKGROUND

[0002] A vacuum fresh-keeping machine is a device that uses vacuum technology to extend the shelf life of food and other items. By removing the air inside the packaging, reducing the oxygen content, it can effectively prevent the growth of bacteria and the oxidation of food, thereby maintaining the freshness and taste of food. Vacuum fresh-keeping machines mainly include flip type vacuum fresh-keeping machines and drawer type vacuum fresh-keeping machines. The traditional flip type vacuum fresh-keeping machine must be tightly buckled on the base to perform vacuuming, that is, a buckle structure needs to be set between the upper cover and the base, and manual operation is required to make the upper cover buckle on the base during vacuuming. After the end, the upper cover is unlocked and turned up to take out the bag. This use needs to be assisted by hand operation to complete, and it is relatively inconvenient to use.

[0003] To solve the above problems, the Chinese utility model patent with the authorization announcement number CN 209553609U discloses a vacuum sealing machine with a clamping and tensioning device, which includes an upper cover and a base. The rear end of the upper cover is hinged to the base. A vacuum pump and an air cylinder are installed in the base. The vacuum pump is connected to the air cylinder. A piston rod is movably installed in the air cylinder. The rear end of the piston rod is installed in the air cylinder, and the front end of the piston rod extends outside the air cylinder. The clamping and tensioning device includes a clamping block and a clamping block. The clamping block is arranged at the front end of the piston rod, and the clamping block is arranged on the lower surface of the upper cover. When the piston rod stops at the initial position, the vacuum slot is disconnected from the air chamber, and the clamping block and the clamping block are separated. When the piston rod stops at the lock cover position, the vacuum slot is connected to the air chamber, and the clamping block and the clamping block are movably clamped and pressed.

[0004] However, the vacuum sealing machine of this structure not only includes an air cylinder and a piston rod, but also needs to include a clamping and tensioning device, which includes a clamping block and a clamping block that are clamped and pressed together. This structure is relatively complex and increases the production cost of the equipment. UTILITY MODEL CONTENTS

[0005] The utility model provides a flip type vacuum fresh-keeping machine, which aims to solve the above-mentioned shortcomings of existing vacuum fresh-keeping machines.

[0006] The utility model adopts the following technical scheme:

[0007] A flip type vacuum preservation machine, comprising a main base body, an upper cover, a heating assembly and a vacuum assembly, a front end of the main base body is formed with an open slot, a first vacuum sealing group is arranged on the open slot, the upper cover is hingedly connected to the main base body above the open slot, a bottom surface of the upper cover is provided with a second vacuum sealing group matched with the first vacuum sealing group to form a first vacuum chamber, the vacuum assembly is connected with the first vacuum chamber, the first vacuum chamber is further provided with the heating assembly, and both sides of the bottom surface of the upper cover are further respectively provided with a retractable assembly.

[0008] In a preferred embodiment, each of the two sides of the open slot is provided with a flat surface matched with the opening of the bottom surface of the flexible member, and an air outlet hole connected with the vacuum assembly is arranged on each flat surface.

[0009] In a preferred embodiment, the second vacuum sealing group of the upper cover is further provided with an induction switch.

[0010] In a preferred embodiment, the flexible member is a folded silica gel column, and the reset spring is fixedly embedded on the inner wall of the flexible member.

[0011] In a preferred embodiment, the vacuum assembly comprises a vacuum pump, a first vacuum pipe, a second vacuum pipe and a circuit board, the suction end of the vacuum pump is connected with a suction pipe, the suction pipe is connected in parallel with the first vacuum pipe and the second vacuum pipe, the tail end of the first vacuum pipe is connected with the second vacuum chamber of the flexible member in communication, the tail end of the second vacuum pipe is connected with the first vacuum chamber in communication, the pipe switching device comprises a first electromagnetic valve and a second electromagnetic valve, the first electromagnetic valve is arranged on the first vacuum pipe, the second electromagnetic valve is arranged on the second vacuum pipe, and the vacuum pump, the first electromagnetic valve and the second electromagnetic valve are electrically connected with the circuit board.

[0012] The utility model also can adopt following scheme:

[0013] The utility model provides a flip type vacuum preservation machine, including main seat body, the upper lid, heating assembly and vacuumizing component, the front end of main seat body forms an open slot, is equipped with the first vacuum seal group on the open slot, the upper lid is hinged on the main seat body above the open slot, and the bottom surface of the upper lid is equipped with the second vacuum seal group with the first vacuum seal group cooperation forms the vacuumizing chamber one, the vacuumizing component is connected with the vacuumizing chamber one, and the vacuumizing chamber one is also equipped with the heating assembly, and both sides of the open slot are equipped with a piston cylinder body respectively, and the top of each piston cylinder body is open, both sides of the upper lid are connected with a sealing head respectively, and each sealing head is connected with the piston cylinder body through the opening and the corresponding sealing, and the vacuumizing component is connected with the inside of the piston cylinder body through the pipeline switching device.

[0014] Preferably, the sealing head is a piston head, which is fixedly connected with the upper lid through a bracket.

[0015] Further, the piston cylinder body and the bracket are both circular arc bodies with the hinge point of the upper lid as the center.

[0016] Further, each piston cylinder body is provided with a return spring, and the top of each return spring is fixedly connected with a pressing plate matched with the piston head.

[0017] Further, the outer wall of the piston head is provided with a sealing ring.

[0018] According to the description of the utility model above, compared with the prior art, the utility model has the following advantages:

[0019] 1. The vacuum preservation machine of the utility model is connected with the telescopic assembly at the bottom surface of the upper lid, including a flexible piece forming the vacuumizing chamber two and a return spring, the bottom surface of the flexible piece is provided with an opening, and the opening of the flexible piece is supported on the bottom surface of the open slot when the upper lid is turned down. The flexible piece is shrunk by the vacuumizing component, and then the upper lid is turned down, so that the first vacuum seal group of the bottom surface is connected with the second vacuum seal group on the open slot to form the vacuumizing chamber one. The vacuumizing component is connected with the vacuumizing chamber one, and the vacuumizing chamber one is also provided with the heating assembly. Both sides of the open slot are provided with a piston cylinder body respectively, and the top of each piston cylinder body is open. Both sides of the upper lid are connected with a sealing head respectively, and each sealing head is connected with the piston cylinder body through the opening and the corresponding sealing. The vacuumizing component is connected with the inside of the piston cylinder body through the pipeline switching device.

[0020] 2. The vacuum preservation machine of this utility model can also use an open-type piston cylinder as the vacuum chamber. The bottom of the upper flip cover is connected to a sealing head. When the upper flip cover is flipped down, the sealing head is precisely sealed against the piston cylinder. By using the vacuum assembly to evacuate the inside of the piston cylinder, the upper flip cover is pulled down to press the second vacuum sealing group at the opening groove. The vacuum assembly evacuates the first vacuum chamber through a pipeline switching device. After the bag is evacuated, the pressure in the first and second vacuum chambers is released, and the upper flip cover can return to its initial position. The sealing head can be separated from the piston cylinder by manually flipping the upper flip cover upward. Therefore, the structure of this flip-top vacuum preservation machine, where the first vacuum sealing group of the upper flip cover automatically presses the second vacuum sealing group, is extremely simple and saves on equipment production costs. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the first embodiment of the present invention with the upper and lower covers in their respective states.

[0022] Figure 2 This is a structural schematic diagram of the upper flip cover in the open state of Embodiment 1 of this utility model.

[0023] Figure 3 This is a schematic diagram of the main body base of Embodiment 1 of the present invention, omitting the lower cover.

[0024] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0025] Figure 5 This is a cross-sectional view of Embodiment 2 of the present invention. Detailed Implementation

[0026] The following reference Figure 1 The specific embodiments of this utility model are described below. To provide a comprehensive understanding of this utility model, many details are described below; however, those skilled in the art can implement this utility model without these details. Well-known components, methods, and processes will not be described in detail below.

[0027] Example 1

[0028] A flip-top vacuum preservation machine, as shown in the reference Figure 1 and Figure 2 It includes a main unit base 10, an upper flip cover 20, a heating component, and a vacuum assembly. The front end of the main unit base 10 forms an opening groove 100, and the opening groove 100 is provided with a first vacuum sealing assembly, specifically including a first groove 101 and a first sealing ring 102 that is sealed to the edge of the top surface of the first groove 101.

[0029] Reference Figure 1 and Figure 2The rear end of the upper cover 20 is hinged on the main base body 10 above the open slot, the bottom surface of the upper cover 20 is provided with a second vacuum sealing group cooperating with the first vacuum sealing group to form a first vacuum chamber, specifically including a second slot body 201 and a second sealing ring 202 sealingly connected to the edge of the second slot body 201, a heating assembly is installed in the second slot body 201, and a sensing switch 22 is further arranged in the second slot body 201 and used for sensing a bag in the first vacuum chamber. The heating assembly preferably adopts a heating silica gel 31 and a heating strip. The heating assembly is a common component in the art and is not the focus of the present scheme, and thus will not be described in detail.

[0030] With reference to Figure 2 The bottom surface of the upper cover 20 is further provided with a retractable assembly on each side, and the retractable assembly includes a flexible piece 41 and a reset spring 42 for resetting the flexible piece. The upper end of the flexible piece 41 is fixed to the bottom surface of the upper cover 20, the flexible piece 41 preferably adopts a folded silica gel column, and the reset spring 42 is fixedly embedded on the inner wall of the flexible piece 41. The flexible piece 41 forms a second vacuum chamber in the inside, and the bottom surface of the flexible piece 41 has an opening. The opening end surface of the flexible piece 41 is sealingly supported on the bottom surface of the open slot 100 when the upper cover 20 is flipped down. The two sides of the above-mentioned open slot 100 are respectively provided with a flat surface 103 matched with the bottom surface opening of the flexible piece 41, and each flat surface 103 is provided with an air outlet hole 104 connected with the vacuum pumping assembly.

[0031] With reference to Figure 2 And Figure 3 The vacuum pumping assembly is connected with the first vacuum chamber, and the vacuum pumping assembly is further connected with the second vacuum chamber through a pipeline switching device. The vacuum pumping assembly includes a vacuum pump 51, a first vacuum pumping pipe 52, a second vacuum pumping pipe 53 and a circuit board 54. The suction end of the vacuum pump 51 is connected with a suction pipe 55, the suction pipe is connected in parallel with the first vacuum pumping pipe 52 and the second vacuum pumping pipe 53, the end of the first vacuum pumping pipe 52 is connected with the second vacuum chamber of the flexible piece 41, the end of the second vacuum pumping pipe 53 is connected with the first vacuum chamber, the pipeline switching device includes a first electromagnetic valve 56 and a second electromagnetic valve 57, the first electromagnetic valve 56 is installed on the first vacuum pumping pipe 52, and the second electromagnetic valve 54 is installed on the second vacuum pumping pipe 53. The above-mentioned sensing switch 25, the vacuum pump 51, the first electromagnetic valve 56 and the second electromagnetic valve 57 are respectively electrically connected with the circuit board 54.

[0032] When the upper cover is pressed down, the bottom surface of the lower end of the flexible member is pressed against the flat surface of the opening groove. When the induction switch senses the bag, the first electromagnetic valve is opened and the second electromagnetic valve is closed. The vacuum assembly works to vacuum the second vacuum chamber, causing the flexible member to shrink downward to pull the upper cover to flip down. When the set value is reached (i.e., the first vacuum sealing group is pressed against the second vacuum sealing group), the first electromagnetic valve is closed and the second electromagnetic valve is opened. The first vacuum chamber is vacuumed, and after the vacuum is completed, the heating silica gel seals the bag opening. Finally, the second electromagnetic valve is closed and the first electromagnetic valve is opened to release the pressure in the second vacuum chamber. The flexible member is extended upward under the action of the first return spring to reset the upper cover to flip up.

[0033] Embodiment Two

[0034] The main difference between this embodiment and Embodiment One is that Figure 4 and Figure 5 The bottom of the opening groove 100 is provided with a piston cylinder 61 on each side, and the top of each piston cylinder 61 is open. The bottom surface of the upper cover 20 is provided with a sealing head on each side. The sealing head is preferably a piston head 62, which is fixedly connected to the bottom surface of the upper cover 20 through a bracket 621. A sealing ring 622 is provided on the outer side wall of each piston head 62 to ensure that the piston head 62 can be sealingly connected to the inner wall of the piston cylinder 61. The above-mentioned vacuum assembly is connected to the inside of the piston cylinder 61 through a pipeline switching device.

[0035] Referring to Figure 5 The piston cylinder 61 and the bracket 621 are both arc bodies with the hinge point of the upper cover 20 as the center, so that the piston head 62 can slide smoothly in the piston cylinder 61. A reset spring 63 is provided in each piston cylinder 61, and the top end of each reset spring 63 is fixedly connected to a pressing plate 631 that cooperates with the piston head 62.

[0036] When the upper cover is pressed down, the bottom surface of the lower end of the flexible member is pressed against the flat surface of the opening groove. When the induction switch senses the bag, the first electromagnetic valve is opened and the second electromagnetic valve is closed. The vacuum assembly works to vacuum the second vacuum chamber, causing the flexible member to shrink downward to pull the upper cover to flip down. When the set value is reached (i.e., the first vacuum sealing group is pressed against the second vacuum sealing group), the first electromagnetic valve is closed and the second electromagnetic valve is opened. The first vacuum chamber is vacuumed, and after the vacuum is completed, the heating silica gel seals the bag opening. Finally, the second electromagnetic valve is closed and the first electromagnetic valve is opened to release the pressure in the second vacuum chamber. The flexible member is extended upward under the action of the first return spring to reset the upper cover to flip up.

[0037] The above merely is the specific implementation manner of the present application, but the design concept of the present application is not limited to this, and any non-essential change of the present application by using the concept should belong to the act of infringing the protection scope of the present application.

Claims

1. A flip-top vacuum preservation machine, comprising a main body, an upper flip-top, a heating assembly, and a vacuum assembly, wherein the front end of the main body forms an opening groove, a first vacuum sealing assembly is provided on the opening groove, the upper flip-top is hinged to the main body above the opening groove, the bottom surface of the upper flip-top is provided with a second vacuum sealing assembly that cooperates with the first vacuum sealing assembly to form a vacuum chamber, the vacuum assembly is connected to the vacuum chamber, and the heating assembly is further provided inside the vacuum chamber, characterized in that: The bottom surface of the upper cover is further provided with a retractable assembly on each side, the retractable assembly comprises a flexible member forming a vacuum chamber II and a reset spring resetting the flexible member, the upper end of the flexible member is fixed to the upper cover, the bottom surface of the flexible member has an opening, the opening end surface of the flexible member is sealed and supported on the opening groove when the upper cover is turned down, and the vacuum assembly is connected with the vacuum chamber II through a pipeline switching device.

2. The vacuum-preserved food storage machine according to claim 1, wherein: Each of the two sides of the opening groove is provided with a plane matched with the bottom surface opening of the flexible member, and an air outlet hole connected with the vacuum assembly is formed in each plane.

3. The vacuum-preserved food storage machine according to claim 1, wherein: The second vacuum sealing group of the upper cover is further provided with an induction switch.

4. The vacuum-preserved food storage machine according to claim 1, wherein: The flexible member is a folded silica gel column, and the reset spring is fixedly embedded on the inner wall of the flexible member.

5. The flip-top vacuum preserver of claim 1, wherein: The vacuum assembly comprises a vacuum pump, a first vacuum pipe, a second vacuum pipe and a circuit board, the suction end of the vacuum pump is connected with a suction pipe, the suction pipe is connected in parallel with the first vacuum pipe and the second vacuum pipe, the distal end of the first vacuum pipe is connected with the vacuum chamber II of the flexible member in communication, the distal end of the second vacuum pipe is connected with the vacuum chamber I in communication, the pipeline switching device comprises a first electromagnetic valve and a second electromagnetic valve, the first electromagnetic valve is installed on the first vacuum pipe, the second electromagnetic valve is installed on the second vacuum pipe, and the vacuum pump, the first electromagnetic valve and the second electromagnetic valve are electrically connected with the circuit board.

6. A flip-top vacuum-preserved machine, comprising a main base body, a flip-top, a heating assembly and a vacuum-pumping assembly, a front end of the main base body is formed with an open slot, the open slot is provided with a first vacuum sealing group, the flip-top is hinged to the main base body above the open slot, a bottom surface of the flip-top is provided with a second vacuum sealing group matched with the first vacuum sealing group to form a first vacuum-pumping chamber, the vacuum-pumping assembly is connected with the first vacuum-pumping chamber, and the first vacuum-pumping chamber is further provided with the heating assembly, characterized in that: Each of the two sides of the opening groove is provided with a piston cylinder, the top end of each piston cylinder is open, one sealing head is connected to each side of the upper cover, each sealing head is sealingly connected with the piston cylinder through the opening, and the vacuum assembly is connected with the inside of the piston cylinder in communication through a pipeline switching device.

7. A flip-top vacuum preserver as claimed in claim 6, characterised in that: The sealing head is a piston head, and the piston head is fixedly connected with the upper cover through a support.

8. A flip-top vacuum preserver as claimed in claim 7, characterised in that: The piston cylinder and the support are both arc bodies with the hinge point of the upper cover as the center.

9. A flip-top vacuum preserver as defined in claim 7, wherein: Each of the piston cylinders is provided with a reset spring, and the top end of each reset spring is fixedly connected with a pressing plate matched with the piston head.

10. The flip-top vacuum preserver of claim 7, wherein: A sealing ring is arranged on the outer side wall of the piston head.

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