Food vacuum package leakproofness detection device

Abstract

The utility model provides a food vacuum package leakproofness detection device, which relates to the field of food package detection equipment and comprises a main machine, a vacuum pump, a vacuum tank, a first pipe for connecting the main machine with the vacuum tank, and a second pipe for connecting the main machine with the vacuum pump, the tank cover is provided with a tank cover extension part extending towards the accommodating space in the vacuum tank; the multi-hole cover plate is connected with the tank cover extension part; the porous cover plate comprises a cover plate body, the cover plate body is provided with a plurality of grooves, the groove openings of the grooves face downwards, the groove lines of the adjacent grooves coincide, the coincident positions of the groove lines are in line contact with the sample, and compared with the sample in a surface contact mode in the prior art, the contact area of the cover plate body and the sample can be reduced; and the probability that tiny gaps in the sample are shielded is reduced.

Description

Technical Field

[0001] The utility model relates to the field of food packaging detection equipment, in particular to a food vacuum packaging sealing detection device. Background Art

[0002] The sealing tester can be used to detect the sealing effect of food vacuum packaging. Its detection principle is to evacuate the vacuum chamber to produce an internal and external pressure difference for the sample immersed in water, and to determine the sealing performance of the sample by observing the escape of gas in the sample. In addition, the sealing performance of the sample can also be determined by evacuating the vacuum chamber to produce an internal and external pressure difference for the sample, observing the expansion of the sample and the recovery of the shape of the sample after the vacuum is released. As described above, the sample is immersed in water. Of course, in actual operation, a porous pressing plate is also used for covering and pressing the inflated sample. According to feedback from users, the inflated sample will have the following problems when covered and pressed by a porous pressing plate: First, when the inflated sample is in close contact with the porous pressing plate, if there are slight gaps on the surface of the sample in contact with the porous pressing plate, they will also be covered in close contact; second, when the inflated sample is in close contact with the porous cover plate, the slightly soft / thin sample will extend into the hole, forming a mark on the surface of the sample, so that the mark expands into a gap, affecting the test results. Utility Model Content

[0003] The utility model aims to provide a food vacuum packaging sealing detection device to solve the above technical problems.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A food vacuum packaging sealing detection device comprises a main unit, a vacuum pump, a vacuum tank, a first tube connecting the main unit and the vacuum tank, and a second tube connecting the main unit and the vacuum pump. The vacuum tank is provided with a tank cover at its tank opening, and the tank cover has a tank cover extension portion extending toward the storage space in the vacuum tank.

[0006] Also included is a perforated cover plate connected to the tank cover extension;

[0007] The porous cover plate comprises a cover plate body, which is provided with a plurality of grooves, wherein the groove openings are downward, the groove lines of adjacent grooves overlap, and the overlapped position of the groove lines contacts the sample line.

[0008] Preferably, the groove further has a plurality of through holes, and there is a height difference between the through holes and the overlapped portion of the groove lines, so as to keep the through holes away from the sample when the overlapped portion of the groove lines contacts the sample line.

[0009] Preferably, the cover plate body, the tank cover and the tank cover extension form a chamber in the accommodating space, and the chamber is connected to the main machine via the first tube.

[0010] Preferably, a plurality of gaps may be provided at the overlapping portion of the groove lines, and the overlapping portion of the groove lines with the plurality of gaps is in contact with the sample point.

[0011] Preferably, the groove is an annular groove, the cross section of the annular groove is an inverted V-shape, and the axes of the plurality of grooves coincide with the axis of the cover plate body.

[0012] The beneficial effects of the utility model are:

[0013] 1. In the utility model, the notch of the groove is downward, and the groove lines of adjacent grooves overlap, and the overlapping part of the groove lines contacts the sample line. Compared with the previous contact with the sample in a surface manner, this contact method can reduce the contact area between the cover plate body and the sample and reduce the probability of small gaps in the sample being blocked.

[0014] 2. The utility model also proposes contacting the sample in a point manner, which can further reduce the contact area and further reduce the probability of small gaps in the sample being blocked.

[0015] 3. In the utility model, the groove also has a plurality of through holes, and there is a height difference between the through holes and the overlapped part of the groove lines. Accordingly, when the overlapped part of the groove lines contacts the sample line, the through holes can be moved away from the sample, thereby avoiding the sample from entering the through holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a food vacuum packaging sealing detection device;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure from a rear perspective;

[0018] Figure 3 for Figure 1 A split diagram of the medium vacuum tank;

[0019] Figure 4 It is a structural schematic diagram of a porous cover plate;

[0020] Figure numerals: 1. main machine; 2. vacuum pump; 3. vacuum tank; 4. tank cover; 5. first tube; 6. second tube; 7. tank cover extension; 8. porous cover plate; 81. cover plate body; 82. groove; 83. through hole. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0022] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0023] Example 1

[0024] In this embodiment, a food vacuum packaging sealing detection device is provided. Figure 1-Figure 4 The food vacuum packaging sealing detection device includes a main unit 1, a vacuum pump 2, a vacuum tank 3, a first tube 5 connecting the main unit 1 and the vacuum tank 3, and a second tube 6 connecting the main unit 1 and the vacuum pump 2.

[0025] To further explain, the host 1 and the vacuum pump 2 are commercially available devices, and their usage is consistent with that of most devices on the market, that is, to evacuate the vacuum tank 3 to create a pressure difference between the inside and outside of the sample immersed in water, and to determine the sealing performance of the sample by observing the escape of gas from the sample.

[0026] In this embodiment, the vacuum tank 3 is provided with a tank cover 4 at the tank mouth, and the tank cover 4 has a tank cover extension portion 7 extending toward the accommodating space inside the vacuum tank 3. The tank cover extension portion 7 is a ring body (not shown in the figure) in this embodiment, and the food vacuum packaging sealing detection device also includes a porous cover plate 8 connected to the tank cover extension portion 7.

[0027] See also Figure 4 The porous cover plate 8 includes a cover plate body 81, and the cover plate body 81 has a plurality of grooves 82. It is further described that the grooves 82 are downwardly oriented, and the groove lines of adjacent grooves 82 overlap, and the overlapped groove lines are in contact with the sample line.

[0028] From the above description, it can be determined that, compared with the previous surface contact with the sample, the line contact with the sample proposed in this embodiment can reduce the contact area between the cover body 81 and the sample and reduce the probability of blocking the fine gaps in the sample.

[0029] In this embodiment, the groove 82 also has a plurality of through holes 83 , and there is a height difference between the through holes 83 and the groove line overlap. Accordingly, when the groove line overlaps the sample line, the through holes 83 can be kept away from the sample, thereby preventing the sample from entering the through holes 83 .

[0030] Example 2

[0031] In this embodiment, a food vacuum packaging sealing detection device is proposed, which includes a main unit 1, a vacuum pump 2, a vacuum tank 3, a first tube 5 connecting the main unit 1 and the vacuum tank 3, and a second tube 6 connecting the main unit 1 and the vacuum pump 2.

[0032] To further explain, the host 1 and the vacuum pump 2 are commercially available devices, and their usage is consistent with that of most devices on the market, that is, to evacuate the vacuum tank 3 to create a pressure difference between the inside and outside of the sample immersed in water, and to determine the sealing performance of the sample by observing the escape of gas from the sample.

[0033] In this embodiment, the vacuum tank 3 is provided with a tank cover 4 at the tank mouth, and the tank cover 4 has a tank cover extension portion 7 extending toward the accommodating space inside the vacuum tank 3. The tank cover extension portion 7 is a ring body (not shown in the figure) in this embodiment, and the food vacuum packaging sealing detection device also includes a porous cover plate 8 connected to the tank cover extension portion 7.

[0034] See also Figure 4 The porous cover plate 8 comprises a cover plate body 81, and the cover plate body 81 has a plurality of grooves 82. Further, the grooves 82 are downwardly directed, and the groove lines of adjacent grooves 82 overlap, and the overlapped groove lines are in contact with the sample line.

[0035] This embodiment improves the embodiment 1. Specifically, a plurality of notches are provided at the overlapping portions of the groove lines. Accordingly, the overlapping portions of the groove lines with the plurality of notches are in contact with the sample points (there are sharp tips between adjacent notches, and the sharp tips are passivated).

[0036] Compared with Example 1, this embodiment proposes to contact the sample in a point manner, which can further reduce the contact area and further reduce the probability of small gaps in the sample being blocked.

[0037] The following contents need to be supplemented in Example 1 and Example 2:

[0038] First, the sample is an inflatable sample, which can float on the water surface after entering the water.

[0039] Second, the groove 82 is an annular groove, and the cross-section of the annular groove is an inverted V-shape. In addition, the axes of the plurality of grooves 82 always coincide with the axes of the cover body 81. Specifically, the radii of the plurality of grooves 82 continuously increase from the axis of the cover body 81 outward, but the plurality of grooves 82 always coincide with the axes of the cover body 81.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A food vacuum packaging sealing detection device, comprising a main unit, a vacuum pump, a vacuum tank, a first tube connecting the main unit and the vacuum tank, and a second tube connecting the main unit and the vacuum pump, characterized in that: The vacuum tank is provided with a tank cover at its tank mouth, and the tank cover has a tank cover extension portion extending toward the storage space in the vacuum tank; Also included is a perforated cover plate connected to the tank cover extension; The porous cover plate comprises a cover plate body, which is provided with a plurality of grooves, wherein the groove openings are downward, the groove lines of adjacent grooves overlap, and the overlapped position of the groove lines contacts the sample line.

2. A food vacuum packaging sealing detection device according to claim 1, characterized in that: The groove also has a plurality of through holes, and there is a height difference between the through holes and the overlapped portion of the groove lines, so as to keep the through holes away from the sample when the overlapped portion of the groove lines contacts the sample line.

3. A food vacuum packaging sealing detection device according to claim 2, characterized in that: The cover plate body, the tank cover and the tank cover extension form a chamber in the accommodating space, and the chamber is connected to the main machine via the first tube.

4. A food vacuum packaging sealing detection device according to claim 1, characterized in that: A number of notches may be provided at the overlapping positions of the groove lines, and the overlapping positions of the groove lines with the number of notches are in point contact with the specimen.

5. The food vacuum packaging sealing detection device according to claim 1, characterized in that: The groove is an annular groove, and the cross section of the annular groove is an inverted V-shape. The axes of several grooves coincide with the axis of the cover plate body.

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