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CN113562336B - Green food safety monitoring device and monitoring method thereof - Google Patents

Green food safety monitoring device and monitoring method thereof Download PDF

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Publication number
CN113562336B
CN113562336B CN202110840186.1A CN202110840186A CN113562336B CN 113562336 B CN113562336 B CN 113562336B CN 202110840186 A CN202110840186 A CN 202110840186A CN 113562336 B CN113562336 B CN 113562336B
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inspection box
positive pressure
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cooling wall
top cover
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CN113562336A (en
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Shandong Huiguang Agricultural Technology Co ltd
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Guangzhou Caimeng Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/42Low-temperature sample treatment, e.g. cryofixation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02Food

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  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention relates to the technical field of food safety, and discloses a green food safety monitoring device and a monitoring method thereof, wherein the monitoring device comprises a censorship box, cooling wall chambers are fixedly connected to two sides of the censorship box, a cooling piston is movably connected to the middle of each cooling wall chamber, a reset magnetic block is fixedly connected to the top end of each cooling wall chamber, a connecting rod is fixedly connected to the top end of each cooling piston, a positive pressure top cover is fixedly connected to one end of each connecting rod, air grooves are formed in two sides of each positive pressure top cover, and fixed locking blocks are movably connected through the air grooves. According to the invention, by utilizing two different temperature drops generated by different mounting positions of the refrigeration compressors, positive pressure is generated in the inspection box, and the generated positive pressure is used for locking the position of the positive pressure top cover, so that the inward positive pressure is maintained, the probability that food samples are polluted by external air during transportation is reduced, and the sterile state is always maintained in the inspection process.

Description

一种绿色食品安全监测装置及其监测方法A green food safety monitoring device and monitoring method thereof

技术领域Technical Field

本发明涉及食品安全技术领域,具体为一种绿色食品安全监测装置及其监测方法。The present invention relates to the technical field of food safety, and in particular to a green food safety monitoring device and a monitoring method thereof.

背景技术Background technique

食品安全问题已经是一个全球话题,国际上食品安全恶性事件不断发生,造成了巨大的经济损失,因此食品安全监测尤为重要,食品安全检测是按照国家指标来检测食品中的有害物质,主要是一些有害有毒的指标的检测,比如重金属、黄曲霉毒素等。The issue of food safety has become a global topic. Malicious food safety incidents continue to occur internationally, causing huge economic losses. Therefore, food safety monitoring is particularly important. Food safety testing is to detect harmful substances in food according to national indicators, mainly some harmful and toxic indicators, such as heavy metals, aflatoxin, etc.

但是现有食品监测的实验室设置数量有限,样品送至实验室所需时间较长,许多待监测食品如蔬菜、豆浆、快餐等在送检的环节,不可避免地受到微生物的污染,便有可能受到污染或者发生腐败,导致检测结果偏高,不能准确监测该类食物原本的安全指标,影响食品安全监测的结果;现有食品安全监测的送检装置在运输食物样品时,因颠簸易发生样品倾倒或洒出的问题,使得到达实验室后可用于监测的样品总量减少,不利于食品监测的标准。However, the number of existing food monitoring laboratories is limited, and it takes a long time to send samples to the laboratory. Many foods to be monitored, such as vegetables, soy milk, fast food, etc., are inevitably contaminated by microorganisms during the inspection process, and may be contaminated or corrupt, resulting in high test results. The original safety indicators of such foods cannot be accurately monitored, affecting the results of food safety monitoring. The existing food safety monitoring delivery devices are prone to sample dumping or spilling due to bumps when transporting food samples, which reduces the total amount of samples available for monitoring after arriving at the laboratory, which is not conducive to food monitoring standards.

发明内容Summary of the invention

针对背景技术中提出的现有食品安全监测装置在使用过程中存在的不足,本发明提供了一种绿色食品安全监测装置及其监测方法,具备样品不易污染、安全稳固、可长时间运输的优点,解决了上述背景技术中提出的技术问题。In view of the shortcomings of the existing food safety monitoring devices mentioned in the background technology during use, the present invention provides a green food safety monitoring device and a monitoring method thereof, which have the advantages of samples not being easily contaminated, being safe and stable, and being transportable for a long time, thereby solving the technical problems raised in the above-mentioned background technology.

本发明提供如下技术方案:一种绿色食品安全监测装置,包括送检箱,所述送检箱的两侧固定连接有降温壁室,所述降温壁室的中间活动连接有降温活塞,所述降温壁室的顶端固定连接有复位磁块,所述降温活塞的顶端固定连接有连杆,所述连杆的一端固定连接有正压顶盖,所述正压顶盖的两侧均开设有气槽,且通过气槽活动连接有固定锁块,所述固定锁块的顶端固定安装有锁块弹簧,所述降温壁室的底端固定安装有制冷压缩机,所述送检箱的底端开设有稳固口,所述稳固口的顶端活动连接有底盘,所述底盘的顶端固定连接有样品容器,所述送检箱的正面固定连接有箱门。The present invention provides the following technical solutions: a green food safety monitoring device comprises an inspection box, both sides of the inspection box are fixedly connected with cooling wall chambers, the middle of the cooling wall chamber is movably connected with a cooling piston, the top of the cooling wall chamber is fixedly connected with a reset magnetic block, the top of the cooling piston is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a positive pressure top cover, both sides of the positive pressure top cover are provided with air grooves, and a fixed locking block is movably connected with the air groove, the top of the fixed locking block is fixedly installed with a locking block spring, the bottom end of the cooling wall chamber is fixedly installed with a refrigeration compressor, the bottom end of the inspection box is provided with a stabilizing opening, the top of the stabilizing opening is movably connected with a chassis, the top of the chassis is fixedly connected with a sample container, and the front of the inspection box is fixedly connected with a box door.

优选的,所述降温活塞可沿降温壁室的中心轴线上下移动,所述降温活塞与复位磁块具有磁性且两者的相对面极性相反。Preferably, the cooling piston can move up and down along the central axis of the cooling wall chamber, and the cooling piston and the reset magnetic block are magnetic and the polarities of the opposite surfaces of the two are opposite.

优选的,所述降温壁室内安装有制冷压缩机,且所述降温壁室内的温降大于送检箱内的温降。Preferably, a refrigeration compressor is installed in the cooling wall chamber, and the temperature drop in the cooling wall chamber is greater than the temperature drop in the inspection box.

优选的,所述稳固口的底端连接送检箱的外部与大气相连通。Preferably, the bottom end of the stabilizing port is connected to the outside of the inspection box and communicates with the atmosphere.

优选的,所述正压顶盖沿垂直方向上下移动,所述固定锁块可沿其自身轴线方向上下移动。Preferably, the positive pressure top cover moves up and down along the vertical direction, and the fixed locking block can move up and down along its own axial direction.

优选的,所述固定锁块具有磁性,其极性与复位磁块内侧极性相反。Preferably, the fixed locking block is magnetic, and its polarity is opposite to the inner polarity of the reset magnetic block.

一种绿色食品安全监测装置的监测方法,包括以下操作步骤:A monitoring method of a green food safety monitoring device comprises the following steps:

S1、打开箱门将待检测食物样品放置于样品容器内;S1. Open the door and place the food sample to be tested in the sample container;

S2、关闭箱门,开启制冷压缩机进行降温,对食物样品进行低温保存运输;S2, close the box door, turn on the refrigeration compressor to cool down, and store and transport the food samples at low temperature;

S3、温降较大的降温壁室内空气收缩使降温壁室内气压低于大气压,压动降温活塞下移;S3, the air in the cooling wall with a large temperature drop contracts, causing the air pressure in the cooling wall to be lower than the atmospheric pressure, pressing the cooling piston to move downward;

S4、连杆下压正压顶盖使送检箱内体积减小,且由于送检箱内温降相对低致使送检箱内压强高压大气压;S4, the connecting rod presses down the positive pressure top cover to reduce the volume inside the inspection box, and because the temperature drop inside the inspection box is relatively low, the pressure inside the inspection box is high pressure atmospheric pressure;

S5、送检箱内的高气压压动底盘使样品容器紧固于送检箱的底部,同时固定锁块受气压向上移动与复位磁块相吸附使正压顶盖固定,保持送检箱内的正压;S5. The high air pressure in the inspection box presses the bottom plate to fasten the sample container to the bottom of the inspection box. At the same time, the fixed lock block moves upward under the air pressure and adsorbs the reset magnetic block to fix the positive pressure top cover, thus maintaining the positive pressure in the inspection box.

S6、到达时,打开箱门的过程中,送检箱内的正压保证了在取出样品时箱体外部的污染源不易冲入箱内污染食物样品,取出样品容器将内部待检样品移至实验室检测台。S6. Upon arrival, during the process of opening the box door, the positive pressure inside the inspection box ensures that when taking out the sample, the pollution source outside the box is not easy to rush into the box and contaminate the food sample. Take out the sample container and move the sample to be inspected inside to the laboratory testing table.

S7、关闭制冷压缩机,降温壁室内温度回升至室温,降温活塞受复位磁块吸引回复至顶端,固定锁块受锁块弹簧的推动移回至正压顶盖的中间位置。S7, turn off the refrigeration compressor, the indoor temperature of the cooling wall returns to room temperature, the cooling piston is attracted by the reset magnetic block and returns to the top, and the fixed lock block is pushed by the lock block spring and moves back to the middle position of the positive pressure top cover.

本发明具备以下有益效果:The present invention has the following beneficial effects:

1、本发明通过利用制冷压缩机的安装位置不同所产生的两处不同温降,来使送检箱的内部产生正压,并利用所产生的正压来锁定正压顶盖的位置,来维持向内的正压,从而降低运输的途中食物样品被外部空气污染的概率,使得送检的过程中始终保持无菌状态。1. The present invention generates positive pressure inside the inspection box by utilizing two different temperature drops caused by different installation positions of the refrigeration compressor, and utilizes the generated positive pressure to lock the position of the positive pressure top cover to maintain the positive pressure inward, thereby reducing the probability of food samples being contaminated by external air during transportation, so that the food samples can always remain sterile during the inspection process.

2、本发明通过利用送检向内的正压来使样品容器紧固与送检箱的底部,避免在运输的途中因颠簸而造成的食物样品倾倒洒出,以保证食品安全监测的监测量要求。2. The present invention utilizes the positive pressure inward to fasten the sample container to the bottom of the inspection box, thereby preventing food samples from tipping over and spilling due to bumps during transportation, thereby ensuring the monitoring volume requirements for food safety monitoring.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1为本发明整体结构示意图;Fig. 1 is a schematic diagram of the overall structure of the present invention;

图2为本发明运输状态结构示意图;FIG2 is a schematic diagram of the transport state structure of the present invention;

图3为本发明整体结构侧面示意图。FIG. 3 is a side schematic diagram of the overall structure of the present invention.

图中:1、送检箱;2、降温壁室;3、降温活塞;4、复位磁块;5、连杆;6、正压顶盖;7、固定锁块;8、锁块弹簧;9、制冷压缩机;10、稳固口;11、底盘;12、样品容器;13、箱门。In the figure: 1. Inspection box; 2. Cooling wall chamber; 3. Cooling piston; 4. Reset magnetic block; 5. Connecting rod; 6. Positive pressure top cover; 7. Fixed locking block; 8. Locking block spring; 9. Refrigeration compressor; 10. Stabilizing port; 11. Chassis; 12. Sample container; 13. Box door.

具体实施方式Detailed ways

下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

请参阅图1-3,一种绿色食品安全监测装置,包括送检箱1,送检箱1的两侧固定连接有降温壁室2,降温壁室2的中间活动连接有降温活塞3,降温壁室2的顶端固定连接有复位磁块4,降温活塞3的顶端固定连接有连杆5,连杆5的一端固定连接有正压顶盖6,正压顶盖6的两侧均开设有气槽,且通过气槽活动连接有固定锁块7,固定锁块7的顶端固定安装有锁块弹簧8,降温壁室2的底端固定安装有制冷压缩机9,送检箱1的底端开设有稳固口10,稳固口10的顶端活动连接有底盘11,底盘11的顶端固定连接有样品容器12,送检箱1的正面固定连接有箱门13。Please refer to Figures 1-3, a green food safety monitoring device, including an inspection box 1, both sides of the inspection box 1 are fixedly connected with cooling wall chambers 2, the middle of the cooling wall chamber 2 is movably connected with a cooling piston 3, the top of the cooling wall chamber 2 is fixedly connected with a reset magnetic block 4, the top of the cooling piston 3 is fixedly connected with a connecting rod 5, one end of the connecting rod 5 is fixedly connected with a positive pressure top cover 6, both sides of the positive pressure top cover 6 are provided with air grooves, and a fixed locking block 7 is movably connected through the air grooves, a locking block spring 8 is fixedly installed on the top of the fixed locking block 7, a refrigeration compressor 9 is fixedly installed on the bottom end of the cooling wall chamber 2, a stabilizing opening 10 is provided at the bottom end of the inspection box 1, the top of the stabilizing opening 10 is movably connected with a chassis 11, the top of the chassis 11 is fixedly connected with a sample container 12, and the front of the inspection box 1 is fixedly connected with a box door 13.

降温活塞3可沿降温壁室2的中心轴线上下移动,制冷压缩机9启动后,降温壁室2内温度降低形成负压,可压动降温活塞3下移,正压顶盖6可以沿垂直方向上下移动,进而推动正压顶盖6向下挤压送检箱1内的空气,降温壁室2内安装有制冷压缩机9,且降温壁室2内的温降大于送检箱1内的温降,使得送检箱1内相对于降温壁室2内较低的温降使送检箱1内空气收缩的体积,小于正压顶盖6下移所减小的送检箱1内的体积,最终使得送检箱1内的气压高于送检箱1外部的大气压,稳固口10的底端连接送检箱1的外部与大气相连通,使得送检箱1内的正压向下压动底盘11紧紧吸附于送检箱1的底面,使得样品容器12在运输的过程中更加紧固,不会轻易发生倾翻的现象,同时取出时更加省力方便。The cooling piston 3 can move up and down along the central axis of the cooling wall chamber 2. After the refrigeration compressor 9 is started, the temperature in the cooling wall chamber 2 is reduced to form a negative pressure, which can press the cooling piston 3 to move downward, and the positive pressure top cover 6 can move up and down in the vertical direction, thereby pushing the positive pressure top cover 6 to squeeze the air in the inspection box 1 downward. A refrigeration compressor 9 is installed in the cooling wall chamber 2, and the temperature drop in the cooling wall chamber 2 is greater than the temperature drop in the inspection box 1, so that the volume of the air in the inspection box 1 that is contracted by the lower temperature drop in the inspection box 1 relative to the cooling wall chamber 2 is smaller than the volume in the inspection box 1 reduced by the downward movement of the positive pressure top cover 6. Finally, the air pressure in the inspection box 1 is higher than the atmospheric pressure outside the inspection box 1, and the bottom end of the stabilizing port 10 is connected to the outside of the inspection box 1 and is connected to the atmosphere, so that the positive pressure in the inspection box 1 presses the bottom plate 11 downward and is tightly adsorbed on the bottom surface of the inspection box 1, so that the sample container 12 is more secure during transportation and will not easily tip over, and it is more labor-saving and convenient to take out.

固定锁块7可沿其自身轴线方向左右移动,当正压顶盖6下移至固定锁块7和复位磁块4处于同一水平线时,固定锁块7具有磁性,其极性与复位磁块4内侧极性相反,固定锁块7受送检箱1内正压推动以及受复位磁块4的吸附向两侧移动,使得固定锁块7的外端卡入两侧凹槽中,避免正压顶盖6上移复位以维持送检箱1内的正压。The fixed locking block 7 can move left and right along its own axial direction. When the positive pressure top cover 6 moves down to the same horizontal line as the fixed locking block 7 and the reset magnet 4, the fixed locking block 7 is magnetic, and its polarity is opposite to the inner polarity of the reset magnet 4. The fixed locking block 7 is pushed by the positive pressure in the inspection box 1 and moves to both sides by the adsorption of the reset magnet 4, so that the outer ends of the fixed locking block 7 are stuck in the grooves on both sides, preventing the positive pressure top cover 6 from moving up and resetting to maintain the positive pressure in the inspection box 1.

降温活塞3与复位磁块4具有磁性且两者的相对面极性相反,当关闭降温壁室2取出食物样品时,送检箱1内气压恢复至大气压,固定锁块7受锁块弹簧8顶出固定槽,同时,降温活塞3受复位磁块4的吸引恢复原位,固定锁块7原离复位磁块4的吸引恢复至正压顶盖6的内侧位置。The cooling piston 3 and the reset magnet 4 are magnetic and the polarities of the opposite surfaces of the two are opposite. When the cooling wall chamber 2 is closed to take out the food sample, the air pressure in the inspection box 1 is restored to atmospheric pressure, and the fixed locking block 7 is pushed out of the fixed groove by the locking block spring 8. At the same time, the cooling piston 3 is attracted by the reset magnet 4 and returns to its original position. The fixed locking block 7 is separated from the attraction of the reset magnet 4 and returns to the inner position of the positive pressure top cover 6.

一种绿色食品安全监测装置的监测方法,包括以下操作步骤:A monitoring method of a green food safety monitoring device comprises the following steps:

S1、打开箱门13将待检测食物样品放置于样品容器12内;S1, open the box door 13 and place the food sample to be tested in the sample container 12;

S2、关闭箱门13,开启制冷压缩机9进行降温,对食物样品进行低温保存运输;S2, close the box door 13, start the refrigeration compressor 9 to cool down, and store and transport the food sample at low temperature;

S3、温降较大的降温壁室2内空气收缩使降温壁室2内气压低于大气压,压动降温活塞3下移;S3, the air in the cooling wall chamber 2 with a large temperature drop contracts to make the air pressure in the cooling wall chamber 2 lower than the atmospheric pressure, pressing the cooling piston 3 to move downward;

S4、连杆5下压正压顶盖6使送检箱1内体积减小,且由于送检箱1内温降相对低致使送检箱1内压强高压大气压;S4, the connecting rod 5 presses down the positive pressure top cover 6 to reduce the volume of the inspection box 1, and because the temperature drop in the inspection box 1 is relatively low, the pressure in the inspection box 1 is high pressure atmospheric pressure;

S5、送检箱1内的高气压压动底盘11使样品容器12紧固于送检箱1的底部,同时固定锁块7受气压向上移动与复位磁块4相吸附使正压顶盖6固定,保持送检箱1内的正压;S5, the high air pressure in the inspection box 1 presses the bottom plate 11 to fasten the sample container 12 to the bottom of the inspection box 1, and at the same time, the fixed lock block 7 moves upward under the air pressure and adsorbs the reset magnetic block 4 to fix the positive pressure top cover 6, thereby maintaining the positive pressure in the inspection box 1;

S6、到达时,打开箱门13的过程中,送检箱1内的正压保证了在取出样品时箱体外部的污染源不易冲入箱内污染食物样品,取出样品容器12将内部待检样品移至实验室检测台。S6. Upon arrival, during the process of opening the box door 13, the positive pressure in the inspection box 1 ensures that the pollution source outside the box is not easy to rush into the box and contaminate the food sample when taking out the sample. The sample container 12 is taken out and the sample to be inspected inside is moved to the laboratory testing table.

S7、关闭制冷压缩机9,降温壁室2内温度回升至室温,降温活塞3受复位磁块4吸引回复至顶端,固定锁块7受锁块弹簧8的推动移回至正压顶盖6的中间位置。S7, turn off the refrigeration compressor 9, the temperature in the cooling wall chamber 2 returns to room temperature, the cooling piston 3 is attracted by the reset magnetic block 4 and returns to the top, and the fixed lock block 7 is pushed by the lock block spring 8 and moves back to the middle position of the positive pressure top cover 6.

需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (3)

1.一种绿色食品安全监测装置,包括送检箱(1),其特征在于:所述送检箱(1)的两侧固定连接有降温壁室(2),所述降温壁室(2)的中间活动连接有降温活塞(3),所述降温壁室(2)的顶端固定连接有复位磁块(4),所述降温活塞(3)的顶端固定连接有连杆(5),所述连杆(5)的一端固定连接有正压顶盖(6),所述正压顶盖(6)的两侧均开设有气槽,且通过气槽活动连接有固定锁块(7),所述固定锁块(7)的顶端固定安装有锁块弹簧(8),所述降温壁室(2)的底端固定安装有制冷压缩机(9),所述送检箱(1)的底端开设有稳固口(10),所述稳固口(10)的顶端活动连接有底盘(11),所述底盘(11)的顶端固定连接有样品容器(12),所述送检箱(1)的正面固定连接有箱门(13);1. A green food safety monitoring device, comprising an inspection box (1), characterized in that: a cooling wall chamber (2) is fixedly connected to both sides of the inspection box (1), a cooling piston (3) is movably connected to the middle of the cooling wall chamber (2), a reset magnetic block (4) is fixedly connected to the top of the cooling wall chamber (2), a connecting rod (5) is fixedly connected to the top of the cooling piston (3), one end of the connecting rod (5) is fixedly connected to a positive pressure top cover (6), and both sides of the positive pressure top cover (6) are provided with An air groove is provided, and a fixed locking block (7) is movably connected to the air groove, a locking block spring (8) is fixedly installed on the top of the fixed locking block (7), a refrigeration compressor (9) is fixedly installed on the bottom of the cooling wall chamber (2), a stabilizing opening (10) is provided at the bottom of the inspection box (1), a bottom of the stabilizing opening (10) is movably connected to a bottom plate (11), a top of the bottom plate (11) is fixedly connected to a sample container (12), and a box door (13) is fixedly connected to the front of the inspection box (1); 降温活塞(3)可沿降温壁室(2)的中心轴线上下移动,制冷压缩机(9)启动后,降温壁室(2)内温度降低形成负压,可压动降温活塞(3)下移,正压顶盖(6)可以沿垂直方向上下移动,进而推动正压顶盖(6)向下挤压送检箱(1)内的空气,降温壁室(2)内安装有制冷压缩机(9),且降温壁室(2)内的温降大于送检箱(1)内的温降,使得送检箱(1)内相对于降温壁室(2)内较低的温降使送检箱(1)内空气收缩的体积,小于正压顶盖(6)下移所减小的送检箱(1)内的体积,最终使得送检箱(1)内的气压高于送检箱(1)外部的大气压,稳固口(10的底端连接送检箱(1)的外部与大气相连通,使得送检箱(1)内的正压向下压动底盘(11)紧紧吸附于送检箱(1)的底面,使得样品容器(12)在运输的过程中更加紧固;The cooling piston (3) can move up and down along the central axis of the cooling wall chamber (2). After the refrigeration compressor (9) is started, the temperature in the cooling wall chamber (2) decreases to form a negative pressure, which can press the cooling piston (3) downward. The positive pressure top cover (6) can move up and down in the vertical direction, thereby pushing the positive pressure top cover (6) downward to squeeze the air in the inspection box (1). The cooling wall chamber (2) is equipped with a refrigeration compressor (9), and the temperature drop in the cooling wall chamber (2) is greater than the temperature drop in the inspection box (1), so that the temperature in the inspection box (1) is relatively low. The lower temperature drop in the cooling wall chamber (2) causes the volume of the air in the inspection box (1) to shrink, which is smaller than the volume of the inspection box (1) reduced by the downward movement of the positive pressure top cover (6), and finally makes the air pressure in the inspection box (1) higher than the atmospheric pressure outside the inspection box (1). The bottom end of the stabilizing port (10) is connected to the outside of the inspection box (1) and communicates with the atmosphere, so that the positive pressure in the inspection box (1) presses the bottom plate (11) downward to be tightly adsorbed on the bottom surface of the inspection box (1), so that the sample container (12) is more secure during transportation; 所述降温活塞(3)与复位磁块(4)具有磁性且两者的相对面极性相反;The cooling piston (3) and the reset magnetic block (4) are magnetic and the polarities of the opposing surfaces of the two are opposite; 固定锁块(7)具有磁性,其极性与复位磁块(4)内侧极性相反。The fixed locking block (7) is magnetic, and its polarity is opposite to the inner polarity of the reset magnetic block (4). 2.根据权利要求1所述的一种绿色食品安全监测装置,其特征在于:所述正压顶盖(6)沿垂直方向上下移动,所述固定锁块(7)可沿其自身轴线方向左右移动。2. A green food safety monitoring device according to claim 1, characterized in that: the positive pressure top cover (6) moves up and down in the vertical direction, and the fixed locking block (7) can move left and right along its own axis direction. 3.根据权利要求1所述的一种绿色食品安全监测装置的监测方法,其特征在于,包括以下操作步骤:3. The monitoring method of a green food safety monitoring device according to claim 1 is characterized in that it comprises the following operating steps: S1、打开箱门(13)将待检测食物样品放置于样品容器(12)内;S1, opening the box door (13) and placing the food sample to be tested in the sample container (12); S2、关闭箱门(13),开启制冷压缩机(9)进行降温,对食物样品进行低温保存运输;S2, closing the box door (13), turning on the refrigeration compressor (9) to cool the food sample, and storing and transporting the food sample at a low temperature; S3、温降较大的降温壁室(2)内空气收缩使降温壁室(2)内气压低于大气压,压动降温活塞(3)下移;S3, the air in the cooling wall chamber (2) with a larger temperature drop contracts, causing the air pressure in the cooling wall chamber (2) to be lower than the atmospheric pressure, thereby pressing the cooling piston (3) to move downward; S4、连杆(5)下压正压顶盖(6)使送检箱(1)内体积减小,且由于送检箱(1)内温降相对低致使送检箱(1)内压强高于大气压;S4, the connecting rod (5) presses down the positive pressure top cover (6) to reduce the volume inside the inspection box (1), and because the temperature drop inside the inspection box (1) is relatively low, the pressure inside the inspection box (1) is higher than the atmospheric pressure; S5、送检箱(1)内的高气压压动底盘(11)使样品容器(12)紧固于送检箱(1)的底部,同时固定锁块(7)受气压向上移动与复位磁块(4)相吸附使正压顶盖(6)固定,保持送检箱(1)内的正压;S5, the high air pressure in the inspection box (1) presses the bottom plate (11) so that the sample container (12) is fastened to the bottom of the inspection box (1), and at the same time, the fixed lock block (7) moves upward under the air pressure and attracts the reset magnetic block (4) to fix the positive pressure top cover (6), thereby maintaining the positive pressure in the inspection box (1); S6、到达时,打开箱门(13)的过程中,送检箱(1)内的正压保证了在取出样品时,箱体外部的污染源不易冲入箱内污染食物样品,取出样品容器(12)将内部待检样品移至实验室检测台;S6. Upon arrival, during the process of opening the box door (13), the positive pressure in the inspection box (1) ensures that when taking out the sample, the pollution source outside the box is not easy to rush into the box and contaminate the food sample, and the sample container (12) is taken out and the sample to be inspected inside is moved to the laboratory testing table; S7、关闭制冷压缩机(9),降温壁室(2)内温度回升至室温,降温活塞(3)受复位磁块(4)吸引回复至顶端,固定锁块(7)受锁块弹簧(8)的推动移回至正压顶盖(6)的中间位置。S7, the refrigeration compressor (9) is turned off, the temperature in the cooling wall chamber (2) rises back to room temperature, the cooling piston (3) is attracted by the reset magnetic block (4) and returns to the top end, and the fixed locking block (7) is pushed by the locking block spring (8) and moves back to the middle position of the positive pressure top cover (6).
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