Combined vacuum fresh-keeping machine

Abstract

The utility model discloses a combined type vacuum fresh-keeping machine which comprises a main body, a first sealing assembly arranged at the front end of the main body and a second sealing assembly arranged at the top end of the main body, the first sealing assembly comprises a first turning cover, the second sealing assembly comprises a second turning cover, and a heat sealing ring is arranged on the second turning cover. A heating component is arranged on the heat sealing ring, a lifting support is arranged on the second turning cover, the heat sealing ring is fixed to the bottom of the lifting support, a guide column is arranged on the second turning cover, a guide sleeve is arranged on the lifting support, a reset spring enabling the guide sleeve to ascend is arranged between the guide sleeve and the guide column, and an air bag is arranged between the second turning cover and the lifting support. According to the vacuum sealing assembly of the preservation box, the heat sealing ring can selectively ascend or descend according to the needed time period so as to loosen or press the thin film, rapid vacuumizing can be guaranteed, and heat sealing can be smoothly carried out.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging, and more specifically relates to a combined vacuum fresh-keeping machine. Background Art

[0002] The vacuum sealing equipment mainly consists of a vacuuming part and a sealing part. The vacuuming part extracts the air from the packaged object, and the sealing part realizes the heat sealing of the packaged object.

[0003] For example, the Chinese patent application numbered CN208070112U is an earlier application by the applicant, which discloses a vacuum fresh-keeping machine comprising: a main body, a first sealing assembly arranged at the front end of the main body, and a second sealing assembly arranged at the top end of the main body, wherein: the main body is a box structure with an accommodating space arranged inside; a first placement cavity for accommodating a lunch box or a fresh-keeping box is arranged at the top end of the main body; the first sealing assembly comprises: a first flip cover hinged on the main body, a first enclosure arranged on the first flip cover, a second enclosure arranged on a panel at the front end of the main body and corresponding to the first enclosure, a sealing strip arranged on the first flip cover, a first sealing strip arranged on the front end panel of the main body and corresponding to the sealing strip A heating component and a first vacuum component; when the first flip cover is closed on the front end of the main body, the first enclosure and the second enclosure are docked to form a vacuum chamber, and the sealing strip is tightly pressed on the first heating component; the first vacuum component is arranged at a position corresponding to the second enclosure in the accommodating space, and the first vacuum component vacuums the vacuum chamber; the second sealing assembly includes: a second flip cover hinged on the main body, a heat sealing ring arranged on the second flip cover, a second heating component arranged on the heat sealing ring, and a placement ring arranged on the top edge of the first placement chamber; when the second flip cover is closed on the top end of the main body, the heat sealing ring is pressed tightly on the placement ring.

[0004] The above patented technology can be used for vacuum sealing of packaging bags, as well as heat sealing of lunch boxes or fresh-keeping boxes.

[0005] However, when performing vacuum heat sealing operation on lunch boxes or fresh-keeping boxes, the heat sealing ring is directly pressed on the placement ring, that is, the film above the fresh-keeping box is pressed during the vacuuming process, and the vacuuming efficiency is low. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the utility model provides a vacuum sealing assembly of a fresh-keeping box in which the heat sealing ring can be selected to rise or fall according to the required time period to loosen or compress the film, thereby ensuring rapid vacuuming and smooth heat sealing.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combined vacuum preservation machine, comprising a main body, a first sealing assembly arranged at the front end of the main body and a second sealing assembly arranged at the top end of the main body, the first sealing assembly comprising a first flip cover, the second sealing assembly comprising a second flip cover, a heat sealing ring being provided on the second flip cover, a heating component being provided on the heat sealing ring, a lifting bracket being provided on the second flip cover, the heat sealing ring being fixed to the bottom of the lifting bracket, a guide post being provided on the second flip cover, a guide sleeve being provided on the lifting bracket, a reset spring being provided between the guide sleeve and the guide post to cause the guide sleeve to rise, an airbag being provided between the second flip cover and the lifting bracket, and the airbag being connected to an air pump.

[0008] Furthermore, the second flip cover includes a cover body and a covering shell. The cover body is provided with an empty slot, and the lifting bracket is located in the empty slot.

[0009] Furthermore, a support beam is provided on the cover body, and the airbag is located between the support beam and the lifting bracket.

[0010] Furthermore, the guide pillars are provided in a plurality, the guide pillars are fixed above the cover body, and the return spring is a compression spring.

[0011] Compared with the existing technology, the beneficial effect of the utility model is that: through the cooperation of the airbag and the return spring, the lifting bracket can be lowered when the airbag is inflated to press the film and the fresh-keeping box for heat sealing; the lifting bracket can also be raised when the airbag is deflated to ensure that the opening between the film and the fresh-keeping box is larger, so that vacuum can be quickly drawn. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional structural diagram of the combined vacuum fresh-keeping machine of the present utility model;

[0013] Figure 2 This is a cross-sectional view of the combined vacuum fresh-keeping machine of the present utility model;

[0014] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0015] Figure 4 This is a three-dimensional structural diagram when the covering shell is removed.

[0016] Figure numerals: 1. First sealing assembly; 2. Second sealing assembly; 22. Second flip cover; 221. Cover body; 222. Cover shell; 3. Lifting bracket; 4. Support beam; 5. Airbag; 61. Guide column; 62. Guide sleeve; 63. Compression spring; 71. Fresh-keeping box; 72. Film. DETAILED DESCRIPTION

[0017] Reference Figures 1 to 4 The embodiment of the combined vacuum fresh-keeping machine of the utility model is further described.

[0018] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which 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 direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0020] A combined vacuum preservation machine includes a main body, a first sealing assembly 1 arranged at the front end of the main body, and a second sealing assembly 2 arranged at the top end of the main body, the first sealing assembly 1 includes a first flip cover, the second sealing assembly 2 includes a second flip cover 22, the second flip cover 22 is provided with a heat sealing ring, the heat sealing ring is provided with a heating component, the second flip cover 22 is provided with a lifting bracket 3, the heat sealing ring is fixed to the bottom of the lifting bracket 3, the second flip cover 22 is provided with a guide column 61, the lifting bracket 3 is provided with a guide sleeve 62, a return spring is provided between the guide sleeve 62 and the guide column 61 to make the guide sleeve 62 rise, an airbag 5 is provided between the second flip cover 22 and the lifting bracket 3, and the airbag 5 is connected to an air pump.

[0021] In this embodiment, the first sealing assembly 1 is the same as the prior art CN208070112U, and the heat sealing ring and heating component are also the same.

[0022] The second flip cover 22 preferably includes a cover body 221 and a cover shell 222 . The cover body 221 is provided with an empty slot, and the lifting bracket 3 is located in the empty slot.

[0023] There is a certain space between the cover body 221 and the covering shell 222, and the lifting bracket 3 can move up or down at the empty groove of the cover body 221, wherein the cover body 221 is provided with a support beam 4, and the airbag 5 is located between the support beam 4 and the lifting bracket 3, and the support beam 4 is located above the cover body 221, and the airbag 5 is below the support beam 4. When the airbag 5 is inflated, the lifting bracket 3 will be pushed open and move downward.

[0024] like Figure 4 As shown, in this embodiment, there are two support beams 4. The two support beams 4 are preferably made of aluminum profiles, which have low weight and high structural strength. They will not bend when the airbag 5 is inflated. The two support beams 4 are distributed in parallel and symmetrically, and the airbag 5 can apply force evenly to the lifting bracket 3 when it is inflated.

[0025] like Figure 3 and 4 As shown, the guide pillars 61 are provided in plurality, and the guide pillars 61 are fixed above the cover body 221 . The return spring is a compression spring 63 . The guide sleeve 62 is sleeved on the guide pillars 61 from top to bottom, and the guide sleeve 62 presses on the compression spring 63 .

[0026] like Figure 4 As shown, when the opening of the fresh-keeping box 71 is rectangular, the lifting bracket 3 is also rectangular. Similarly, the empty slot is adapted to the shape of the lifting bracket 3 and is rectangular. There are four guide posts 61, which are respectively located at the four corners. When the guide posts 61 and the guide sleeves 62 cooperate, the various positions of the lifting bracket 3 are lifted and lowered synchronously.

[0027] When the lifting bracket 3 moves downward, the guide sleeve 62 presses the compression spring 63, and the compression spring 63 stores energy. At this time, the heat sealing ring will press the film 72 downward, making it close to the fresh-keeping box 71, and the heat sealing operation can be performed; when vacuuming, the airbag 5 is deflated. Under the action of the compression spring 63, the lifting bracket 3 moves upward with the heat sealing ring, which no longer presses the film 72, so that there is a larger gap between the film 72 and the fresh-keeping box 71, which is convenient for rapid vacuuming.

[0028] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A combined vacuum fresh-keeping machine, comprising a main body, a first sealing assembly disposed at the front end of the main body, and a second sealing assembly disposed at the top end of the main body, wherein the first sealing assembly comprises a first flip cover, and the second sealing assembly comprises a second flip cover, wherein the second flip cover is provided with a heat sealing ring, and the heat sealing ring is provided with a heating element, characterized in that: The second flip cover is provided with a lifting bracket, the heat sealing ring is fixed to the bottom of the lifting bracket, the second flip cover is provided with a guide column, the lifting bracket is provided with a guide sleeve, a return spring is provided between the guide sleeve and the guide column to make the guide sleeve rise, and an airbag is provided between the second flip cover and the lifting bracket, and the airbag is connected to an air pump.

2. The combined vacuum fresh-keeping machine according to claim 1, characterized in that: The second flip cover includes a cover body and a covering shell. The cover body is provided with an empty slot, and the lifting bracket is located in the empty slot.

3. The combined vacuum fresh-keeping machine according to claim 2, characterized in that: A support beam is provided on the cover body, and the airbag is located between the support beam and the lifting bracket.

4. The combined vacuum fresh-keeping machine according to claim 2, characterized in that: The guide posts are provided in a plurality and are fixed on the upper part of the cover body. The return spring is a compression spring.

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