CN-224231627-U - Fruit freshness indicator box

CN224231627UCN 224231627 UCN224231627 UCN 224231627UCN-224231627-U

Abstract

The utility model discloses a fruit freshness indicator box which comprises a box body used for storing fruits, wherein a transparent plate body is arranged on the front side of the box body, a movable groove is formed in the lower side of the transparent plate body, a detection part is movably arranged in the movable groove, a color changing part used for detecting the PH value in the box body is arranged at the rear end of the detection part, and a comparison part used for comparing colors with the color changing part is arranged on the front side of the box body. The color-changing piece detection box body has the advantages that the PH value in the box body is subjected to color-changing reaction, the freshness can be visually displayed through the comparison between the color change of the color-changing piece and the comparison part, the structure is simple, the cost is low, the color-changing piece detection box body is suitable for super business and family scenes, the shelf life real-time monitoring is realized, and the food safety management efficiency is improved.

Inventors

ZHU QI
HOU CHAOLING
ZHANG QI
XIAO HAIJUN
CHEN GUANGXUE
LI ZHIHAN

Assignees

广东彩乐智能包装科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250530

Claims (8)

1. The fruit freshness indicator box is characterized by comprising a box body used for storing fruits, wherein a transparent plate body is arranged on the front side of the box body, a movable groove is formed in the lower side of the transparent plate body, a detection part is movably arranged in the movable groove, a color changing part used for detecting the PH value in the box body is arranged at the rear end of the detection part, and a comparison part used for comparing the color of the color changing part is arranged on the front side of the box body.
2. The fruit freshness indicator of claim 1 wherein the top cover of the case body is provided with a lid.
3. The fruit freshness indicator of claim 1, wherein the detecting portion further comprises a sliding member and a connecting member, the connecting member is movably disposed in the movable groove, the sliding member is fixedly disposed at an outer end of the connecting member, and the color-changing member is fixedly disposed at an inner end of the connecting member.
4. A fruit freshness indicator as claimed in claim 3 wherein the slider and connector are of transparent construction.
5. The fruit freshness indicator of claim 1 wherein the color changing member comprises a substrate having a surface chelated with a color changing functional material.
6. The fruit freshness indicator of claim 5 wherein the substrate is a polyvinyl alcohol film and the color changing functional material is an anthocyanin.
7. The fruit freshness indicator of claim 6 wherein the contrast portion is disposed below the active slot, the contrast portion comprising a plurality of color contrast cards disposed in alignment along the direction of movement of the detection portion, the color of the color contrast cards corresponding to the color of each stage of the color change cycle of the color change member.
8. A fruit freshness indicator according to claim 3 wherein the upper and lower sides of the movable groove are provided with rubber sealing strips, and the connector is movable between the rubber sealing strips on the upper and lower sides.

Description

Fruit freshness indicator box Technical Field The utility model relates to the field of fruit freshness detection, in particular to freshness detection. Background With the rise of global food safety awareness, consumers have increasingly strict requirements on freshness of fresh products such as fruits. However, the detection and monitoring methods for fruit freshness in the prior art have significant limitations. Traditional freshness assessment mainly relies on laboratory physicochemical analysis, such as detection of volatile gas concentrations of ethylene, carbon dioxide, etc. released from fruits by gas chromatography or high performance liquid chromatography, or analysis of pulp composition changes by mass spectrometry. Although the methods have high precision, professional equipment and technical personnel are required to operate, the detection period is as long as hours or even days, and the methods are only suitable for sampling detection before delivery, and can not monitor fruits in shelf life or household storage in real time. Disclosure of utility model The utility model aims to provide a fruit freshness indicator box to solve the problems. According to one aspect of the utility model, a fruit freshness indicator box is provided, and comprises a box body for storing fruits, wherein a transparent plate body is arranged on the front side of the box body, a movable groove is formed in the lower side of the transparent plate body, a detection part is movably arranged in the movable groove, a color changing part for detecting the PH value in the box body is arranged at the rear end of the detection part, and a comparison part for comparing colors with the color changing part is arranged on the front side of the box body. In some embodiments, the top cover of the case is provided with a cover. In some embodiments, the detecting portion further includes a sliding member and a connecting member, the connecting member is movably disposed in the movable groove, the sliding member is fixedly disposed at an outer end of the connecting member, and the color-changing member is fixedly disposed at an inner end of the connecting member. In some embodiments, the slider and the connector are transparent structures. In some embodiments, the color-changing member includes a substrate having a surface chelated with a color-changing functional material. In some embodiments, the substrate is a polyvinyl alcohol film and the color-changing functional material is an anthocyanin. In some embodiments, the comparison part is disposed below the movable slot, and the comparison part includes a plurality of color comparison cards arranged along the movable direction of the detection part, where the color of the color comparison card corresponds to the color of each stage in the color-changing period of the color-changing member. In some embodiments, rubber sealing strips are arranged on the upper side and the lower side of the movable groove, and the connecting piece moves between the rubber sealing strips on the upper side and the lower side. Compared with the prior art, the application has the beneficial effects that: The fruit runs off moisture when being stored in the box body, under the condition of keeping the box body basically closed, the moisture can keep the color-changing piece moist, gas molecules contact the color-changing piece and complete the color-changing phenomenon thereon, the color-changing piece detects the PH value in the box body and causes color-changing reaction, the color change of the color-changing piece is compared with the comparison part, so that the freshness can be visually displayed, the food safety monitoring device is simple in structure, low in cost, suitable for super business and family scenes, capable of realizing real-time monitoring of shelf life and capable of improving food safety management efficiency. Drawings FIG. 1 is a schematic perspective view of the present utility model; FIG. 2 is a schematic view of the structure of the box cover of the present utility model after being opened; fig. 3 is a schematic structural view of the detecting unit of the present utility model. Detailed Description The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. Referring to fig. 1 to 3, the application provides a fruit freshness indicator box, which comprises a box body 1 for storing fruits, wherein a transparent plate body 2 is arranged at the front side of the box body 1, a movable groove 3 is formed at the lower side of the transparent plate body 2,