Vacuum food fresh-keeping device

Abstract

The utility model discloses a vacuum food fresh-keeping device, which relates to the technical field of food fresh-keeping, and particularly comprises an operation table, an assembly block is fixedly mounted at the top of the right side of the operation table, a vacuum pump is fixedly mounted at the center of the top of the assembly block, and an exhaust pipe is fixedly mounted on one side of the bottom of the vacuum pump. And a switch button is arranged at the top of the vacuum pump, two internal threaded holes are formed in the top of the assembly block, the two internal threaded holes are in threaded connection with screws, and pressing blocks are rotationally installed at the bottoms of the two screws. According to the fresh-keeping bag heat sealing device, the upper pressing plate of the heat sealing device is pressed, so that the upper pressing plate moves downwards on the limiting columns, the heating rod at the bottom of the upper pressing plate is in contact with the heating piece, and the heating rod and the heating piece heat and seal a fresh-keeping bag in the middle; therefore, after the freshness protection bag is sealed by the heat sealing device, external air is prevented from entering the bag when the exhaust pipe is pulled out, and the sealing effect is prevented from being damaged.

Description

Technical Field

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

[0002] Food refers to all kinds of finished products and raw materials for human consumption or drinking, as well as items that are traditionally both food and medicine, but does not include items intended for treatment. After food processing, food is often placed in freezer bags for preservation and storage to prevent it from rotting, spoiling, becoming damp, moldy, oxidized, or corroded due to various bacteria, moisture, and humidity in the air, thus effectively maintaining the freshness and quality of the food.

[0003] Chinese utility model patent CN217673444U discloses a vacuum compression and preservation device for food processing. Although it solves the problem of low efficiency in manually vacuum compression and sealing of food preservation bags, the connection method between the vacuum pump and the food preservation bag makes it easy for air to enter when sealing the interface between the food preservation bag and the connecting tube after the heating element sealing operation, resulting in incomplete sealing. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a vacuum food preservation device that solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: It includes an operating table, an assembly block fixedly installed on the top right side of the operating table, a vacuum pump fixedly installed at the center of the top of the assembly block, a suction pipe fixedly installed on one side of the bottom of the vacuum pump, a switch button on the top of the vacuum pump, two internal threaded holes on the top of the assembly block, each of the two internal threaded holes being threadedly connected to a screw, pressure blocks rotatably installed at the bottom of the two screws, two limiting blocks slidably installed on the inner side of the assembly block, a heat sealer fixedly installed on the top right side of the operating table, and a food storage bag placed on the surface of the operating table.

[0008] Optionally, both the heat sealer and the assembly block are fixedly installed on the top right side of the operating table, but the heat sealer is located on the left side of the assembly block.

[0009] Optionally, the heat sealer includes a lower heating plate, two limiting posts, two springs, an upper pressure plate, and an upper heating rod.

[0010] Optionally, the upper pressure plate has connecting holes on both sides of its top, the inner surface of the connecting holes is adapted to the outer surface of the lower end of the limiting post, and the upper pressure plate is slidably connected to the outside of the limiting post.

[0011] Optionally, the top surface of the lower heating element is provided with an arc-shaped groove, the length and inner surface of the arc-shaped groove being adapted to the length and outer surface of the heating rod, and the heating rod being slidably connected to the top of the heating element.

[0012] Optionally, the top of the assembly block has two sliding grooves, the inner surfaces of the two sliding grooves are adapted to the outer surface of the limiting block, and the limiting block is slidably installed inside the sliding grooves.

[0013] Optionally, when the upper pressure plate compresses the spring to make the heating rod contact the arc-shaped groove on the surface of the heating element, the top height of the upper pressure plate is equal to the bottom height of the limiting block.

[0014] Optionally, the bottom center of the pressure block is provided with an opening groove, which is semi-circular and the radius of the opening groove is equal to the diameter of the suction pipe.

[0015] This utility model provides a vacuum food preservation device, which has the following beneficial effects:

[0016] 1. This vacuum food preservation device rotates two screws on the assembly block by rotating forward or backward. The screws are connected to the internal threaded holes of the assembly block by thread, allowing the pressure block to move up and down. The downward movement of the pressure block presses the opening of the preservation bag tightly, preventing air from entering the bag. At the same time, the opening groove at the bottom of the pressure block makes it easy to insert the vacuum tube into the bag to perform vacuuming when the opening of the preservation bag is pressed tightly. This ensures the vacuuming work is carried out while preventing external air from entering the preservation bag.

[0017] 2. This vacuum food preservation device, by pressing the upper pressure plate of the heat sealer, causes the upper pressure plate to move downward on the limiting post, and the heating rod at the bottom of the upper pressure plate comes into contact with the heating plate, so that the heating rod and the heating plate heat and seal the preservation bag in the middle. Furthermore, by using the heat sealer to be located in front of the vacuum pump's suction pipe, it is possible to prevent external air from entering the bag when the suction pipe is pulled out after the heat sealer has sealed the preservation bag, thus avoiding damage to the sealing effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model along three axes;

[0019] Figure 2 This is a cross-sectional view of the internal structure of the assembly block of this utility model;

[0020] Figure 3 This is an enlarged schematic diagram of part A of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the heat sealer of this utility model in its working state;

[0022] Figure 5 This is a cross-sectional view of the heat sealer of this utility model in operation.

[0023] Figure 6 This is an enlarged schematic diagram of part B of the present invention.

[0024] In the diagram: 1. Control panel; 2. Assembly block; 3. Vacuum pump; 4. Evacuation pipe; 5. Switch button; 6. Internal threaded hole; 7. Screw; 8. Pressure block; 9. Limiting block; 10. Heat sealer; 101. Heating element; 102. Limiting post; 103. Spring; 104. Upper pressure plate; 105. Heating rod; 11. Food preservation bag. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1 to 3 This utility model provides a technical solution: a vacuum food preservation device, including an operating table 1, an assembly block 2 fixedly installed on the top right side of the operating table 1, a vacuum pump 3 fixedly installed at the center of the top of the assembly block 2, an air extraction pipe 4 fixedly installed on one side of the bottom of the vacuum pump 3, a switch button 5 on the top of the vacuum pump 3, two internal threaded holes 6 on the top of the assembly block 2, each of the two internal threaded holes 6 being threadedly connected to a screw 7, pressure blocks 8 rotatably installed at the bottom of the two screws 7, and two limit blocks 9 slidably installed on the inner side of the assembly block 2. A heat sealer 10 is fixedly installed on the top right side of the workbench 1. A preservation bag 11 is placed on the surface of the workbench 1. Through the setting of the pressure block 8 and the design of the opening groove at the bottom of the pressure block 8, when the rotating screw 7 drives the pressure block 8 to descend, the air extraction pipe 4 connecting the vacuum pump 3 and the inside of the preservation bag 11 can pass through the pressure block 8 and be inserted into the inside of the preservation bag 11. At the same time, the pressure block 8 can press the other parts of the opening of the preservation bag 11, except for the opening groove, to ensure the vacuuming work is carried out and to prevent external air from entering the inside of the preservation bag 11 and affecting the vacuuming work.

[0028] In this embodiment, the opening of the preservation bag 11 is inserted into the bottom of the assembly block 2, and then the vacuum tube 4 is inserted into the preservation bag 11. The screw 7 is rotated in a clockwise direction, causing the screw 7 to move the pressure block 8 downward. The downward movement of the pressure block 8 presses the opening of the preservation bag 11 tightly. Because of the opening groove at the bottom center of the pressure block 8, the vacuum tube 4 is not affected by the pressure block 8 when the pressure block 8 presses the opening of the preservation bag 11 and can still be inserted into the preservation bag 11. Then, the vacuum pump 3 is controlled to perform vacuuming by pressing the switch button 5 on the top of the vacuum pump 3. The design of the pressure block 8 ensures the vacuuming work and prevents external air from entering the preservation bag 11 and affecting the vacuuming work.

[0029] Example 2

[0030] Please see Figures 4 to 6This utility model provides a technical solution: a vacuum food preservation device, wherein the heat sealer 10 and the assembly block 2 are both fixedly installed on the top right side of the operating table 1, but the heat sealer 10 is located on the left side of the assembly block 2. The heat sealer 10 includes a lower heating plate 101, two limiting posts 102, two springs 103, an upper pressure plate 104, and an upper heating rod 105. The upper pressure plate 104 has connecting holes on both sides of its top, and the inner surface of the connecting holes is adapted to the lower outer surface of the limiting posts 102. The upper pressure plate 104 is slidably connected to the outer side of the limiting posts 102. The top surface of the lower heating plate 101 has an arc-shaped groove, and the length and inner surface of the arc-shaped groove are adapted to the length and outer surface of the heating rod 105. The heating rod 105 is slidably connected to the top of the heating plate 101. The top of the assembly block 2 has two sliding grooves, and the inner surfaces of the two sliding grooves are connected to the limiting block 9. The outer surface is adapted to the limit block 9, which is slidably installed inside the sliding groove. When the upper pressure plate 104 compresses the spring 103 so that the heating rod 105 contacts the arc groove on the surface of the heating plate 101, the top height of the upper pressure plate 104 is equal to the bottom height of the limit block 9. Through the contact between the heating plate 101 of the heat sealer 10 and the heating rod 105 of the upper pressure plate 104, the preservation bag 11 between the heating plate 101 and the heating rod 105 is heated and sealed to achieve a sealing effect. Since the heater 10 is located at the front end of the suction pipe 4 connected to the vacuum pump 3, after the sealing is completed, pulling out the suction pipe 4 on the rear side will not affect the preservation bag 11 that has been sealed on the front side. This avoids the phenomenon that external air can easily enter the preservation bag 11 when the suction pipe 4 is pulled out after the heat sealer 10 has sealed the preservation bag 11, thus avoiding the phenomenon that the sealing effect of the preservation bag 11 is damaged. In this embodiment, after the vacuum pump 3 completes the vacuuming of the inside of the preservation bag 11, the upper pressure plate 104 at the top of the heat sealer 10 is pressed, causing the upper pressure plate 104 to compress the spring 103 on the limiting post 102. When the heating rod 105 at the bottom of the upper pressure plate 104 moves downward, it presses the preservation bag 11 to move towards the heating plate 101 on the lower side. Through the action of the heating rod 105 and the heating plate 101, the preservation bag 11 in the middle is heat-sealed. During the heat sealing, the limiting block 9 is pulled to move out of the assembly block 2, pressing the upper pressure plate 104 of the heat sealer 10. This avoids fatigue and loosening caused by long-term manual pressing, which would result in the heat sealing effect not being achieved. Furthermore, the heat sealer 10 is located in front of the suction pipe 4 of the vacuum pump 3, thereby preventing external air from entering the bag when the suction pipe 4 is pulled out after the heat sealer 10 has sealed the preservation bag 11, thus avoiding damage to the sealing effect.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vacuum food preservation device, comprising an operating table (1), characterized in that: An assembly block (2) is fixedly installed on the top right side of the operating table (1). A vacuum pump (3) is fixedly installed at the center of the top of the assembly block (2). An air extraction pipe (4) is fixedly installed on one side of the bottom of the vacuum pump (3). A switch button (5) is provided on the top of the vacuum pump (3). Two internal threaded holes (6) are opened on the top of the assembly block (2). A screw (7) is threadedly connected to each of the two internal threaded holes (6). A pressure block (8) is rotatably installed at the bottom of the two screws (7). Two limit blocks (9) are slidably installed on the inner side of the assembly block (2). A heat sealer (10) is fixedly installed on the top right side of the operating table (1). A food storage bag (11) is placed on the surface of the operating table (1). An opening groove is opened at the bottom center of the pressure block (8). The opening groove is semi-circular and the radius of the opening groove is equal to the diameter of the air extraction pipe (4).

2. The vacuum food preservation device according to claim 1, characterized in that: The heat sealer (10) and the assembly block (2) are both fixedly installed on the top right side of the operating table (1), but the heat sealer (10) is located on the left side of the assembly block (2).

3. The vacuum food preservation device according to claim 1, characterized in that: The heat sealer (10) includes a lower heating plate (101), two limiting posts (102), two springs (103), an upper pressure plate (104), and an upper heating rod (105).

4. The vacuum food preservation device according to claim 3, characterized in that: The upper pressure plate (104) has connecting holes on both sides of its top. The inner surface of the connecting holes is adapted to the lower outer surface of the limiting post (102). The upper pressure plate (104) is slidably connected to the outside of the limiting post (102).

5. A vacuum food preservation device according to claim 3, characterized in that: The top surface of the lower heating element (101) is provided with an arc-shaped groove. The length and inner surface of the arc-shaped groove are adapted to the length and outer surface of the heating rod (105). The heating rod (105) is slidably connected to the top of the heating element (101).

6. The vacuum food preservation device according to claim 1, characterized in that: The top of the assembly block (2) has two sliding grooves, the inner surfaces of the two sliding grooves are adapted to the outer surface of the limiting block (9), and the limiting block (9) is slidably installed inside the sliding grooves.

7. A vacuum food preservation device according to claim 3, characterized in that: When the upper pressure plate (104) compresses the spring (103) to make the heating rod (105) contact the arc groove on the surface of the heating plate (101), the top height of the upper pressure plate (104) is equal to the bottom height of the limiting block (9).

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