Food nutrition safety monitoring and sampling device

Abstract

The utility model relates to the technical field of food safety detection, and discloses a food nutrition safety monitoring and sampling device which comprises a sampling base and an opening and closing cover pivoted with one side of the sampling base, the sampling base is provided with a sample accommodating cavity; the opening and closing cover is provided with a plurality of sliding rail through holes which are mutually crossed and communicated, a plurality of telescopic clamping blocks which are uniformly distributed are arranged on one side or two sides of the inner wall of each sliding rail through hole, and the telescopic clamping blocks are sequentially arranged in the extending direction of the sliding rail through holes; a sampling assembly is arranged in the sliding rail through hole in a penetrating manner, the sampling assembly comprises a sampling outer pipe and a limiting ring, the limiting ring wraps the outer wall of the sampling outer pipe, a plurality of clamping grooves are formed in the outer wall of the limiting ring, the clamping grooves are uniformly formed in the circumferential direction of the limiting ring, the clamping grooves are embedded into the telescopic clamping blocks, and a plurality of guide limiting grooves are formed in the outer wall of the sampling outer pipe. According to the sampling device, the problem that a related sampling device cannot stably sample a to-be-monitored sample from multiple directions is solved, and the accuracy of a subsequent food detection result is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to food safety detection technical field especially, relate to a food nutrition safety monitoring sampling device. BACKGROUND

[0002] At the beginning of food safety detection, it is only very simple and extensive sensory evaluation, relying on eye observation color, nose smell, hand touch texture, roughly screen out obvious deterioration of food, provide basic guarantee for early diet safety. With the development of science and technology, chemical analysis method appears on the stage, people can determine the basic components and part of harmful substances in food, and the detection scope is gradually expanded. In modern times, instrument analysis technology is booming, and precise equipment such as gas chromatography, liquid chromatography and mass spectrometry are coming in large numbers, the detection accuracy increases exponentially, and the concentration of one millionth of pesticide residues and trace heavy metals can be accurately positioned. It can also deeply analyze the complex food additives. At present, intelligent and big data elements are integrated, and the detection process is more efficient. Not only can the results be given in time to assist on-site supervision, but also can be connected to integrate massive data, track the whole process of food from farmland to table, and comprehensively and uninterruptedly guard the diet safety of the public.

[0003] In food safety detection, the sampling link is very important. However, the current sampling device cannot stably sample the sample to be detected from multiple directions, resulting in inaccurate and large error of subsequent detection results, affecting the judgment of food quality. UTILITY MODEL CONTENT

[0004] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a food nutrition safety monitoring sampling device, so as to solve the problem that the related sampling device cannot stably sample the sample to be monitored from multiple directions, and improve the accuracy of subsequent food detection results.

[0005] The purpose of the utility model is realized by the following technical scheme:

[0006] A food nutrition safety monitoring sampling device, comprising: a sampling base and an opening and closing cover pivoted to one side of the sampling base; the sampling base has a sample containing cavity, and the opening and closing cover can cover the sample containing cavity;

[0007] The opening and closing cover is provided with a plurality of mutually intersecting sliding rail through holes, and the inner wall of the sliding rail through hole is provided with a plurality of uniformly distributed telescopic clamping blocks on one side or both sides; a plurality of telescopic clamping blocks are sequentially arranged along the extension direction of the sliding rail through hole;

[0008] A sampling assembly is arranged in the sliding rail through hole, and the sampling assembly comprises a sampling outer tube and a limiting ring. The limiting ring is arranged on the outer wall of the sampling outer tube. A plurality of clamping grooves are arranged on the outer wall of the limiting ring in a uniform manner along the circumference of the limiting ring. The clamping grooves are embedded with elastic clamping blocks. A plurality of guide limiting grooves are arranged on the outer wall of the sampling outer tube in an extending manner along the axial direction of the sampling outer tube. Elastic strips are arranged in the guide limiting grooves. One end of the elastic strips is fixed on the limiting ring, and the other end is fixed on the side wall of the guide limiting groove away from the limiting ring. The elastic strips are used to drive the sampling outer tube away from the sample containing cavity.

[0009] Further, the sampling assembly further comprises a push-pull rod and an elastic plate. One end of the push-pull rod is located in the sampling outer tube and is in sliding sleeve connection with the sampling outer tube. The elastic plate is fixedly connected to the end of the push-pull rod close to the sampling outer tube. The elastic plate is in abutment with the inner wall of the sampling outer tube.

[0010] Further, the opposite sides of the sampling base are provided with adjusting grooves, screw holes and fixing assemblies. The screw holes penetrate the outer walls of the opposite sides of the sampling base to the adjusting grooves. The side wall of the inner wall of the adjusting groove parallel to the screw hole is provided with a guide groove. The fixing assembly comprises a fixing rod, a guide block and an adjusting rod. The fixing rod is connected with the guide block and is used to fix the sampled object. The guide block is in sliding fit with the guide groove. The adjusting rod is arranged in the screw hole and is in fit with the screw hole to compress the fixing rod.

[0011] Further, one end of the fixing rod away from the guide groove is fixedly connected with a limiting rod. The limiting rod is arranged in a direction perpendicular to the adjusting rod. The limiting rod is used to fix the sampled object.

[0012] Further, the two ends of the limiting rod are connected with limiting blocks respectively. The fixing assembly further comprises soft elastic bands. The two ends of the soft elastic bands are connected with the two limiting blocks at the two ends of the limiting rod respectively in one-to-one correspondence. The two soft elastic bands are used to clamp the sampled object cooperatively.

[0013] Further, the sampling base is provided with a first through hole away from the end pivotally connected with the opening and closing cover. The opening and closing cover is provided with a second through hole corresponding to the end pivotally connected with the sampling base. The first through hole and the second through hole are inserted with the same insertion rod.

[0014] Further, the outer wall of the adjusting rod is provided with an external thread. The inner wall of the screw hole is provided with an internal thread matched with the external thread.

[0015] Further, one end of the push-pull rod away from the elastic plate is provided with a stress plate.

[0016] Further, the opening and closing cover is a component made of transparent material.

[0017] Further, the sampling outer tube is a component made of transparent material. The outer side wall of the sampling outer tube is provided with a sampling amount scale.

[0018] Compared with the prior art, the food nutrition safety monitoring sampling device has the beneficial effects that:

[0019] 1. The plurality of mutually intersecting and interconnected sliding rail through holes provided on the opening and closing cover, the elastic clamping blocks arranged in sequence along the extension direction of the inner wall of the sliding rail through hole on one side or both sides, the limiting ring slidingly covered on the outer wall of the sampling outer tube, the clamping groove provided on the limiting ring and the elastic clamping blocks embedded in each other solve the problem that the related sampling device is difficult to stably sample from multiple directions, improve the accuracy of subsequent food detection results, and reduce errors caused by limited sampling position;

[0020] 2. The guiding limiting groove extending along the axial direction of the sampling outer tube is further provided on the outer wall of the sampling outer tube, the elastic strip is arranged in the guiding limiting groove, one end of the elastic strip is connected with the limiting ring, and the other end of the elastic strip is fixed to the groove wall of the guiding limiting groove, so that after sampling is completed, the elastic strip can drive the sampling outer tube to quickly move away from the sample containing cavity. The design improves the convenience and use efficiency of the whole device operation. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a side view of the opening state of the food nutrition safety monitoring sampling device in the application;

[0022] Figure 2 is a side view of the opening state of the food nutrition safety monitoring sampling device in the application; Figure 1 is a partial enlarged view of position A in the application;

[0023] Figure 3 is a side view of the opening state of the food nutrition safety monitoring sampling device in the application;

[0024] Figure 4 is a partial enlarged view of position D in the application; Figure 3

[0025] is a sectional view of the opening state of the food nutrition safety monitoring sampling device in the application; Figure 5

[0026] is a partial enlarged view of position B in the application; Figure 6 Figure 5 is a partial enlarged view of position C in the application.

[0027] Figure 7 Figure 5

[0028] ​​​In the figure: 1, sampling base; 11, sample accommodating cavity; 12, adjusting groove; 121, guide groove; 13, screw hole; 14, fixing assembly; 141, fixing rod; 1411, limiting rod; 1412, limiting block; 1413, soft elastic band; 142, guide block; 143, adjusting rod; 15, first through hole; 2, opening and closing cover; 21, sliding rail through hole; 211, telescopic clamping block; 22, second through hole; 3, sampling assembly; 31, sampling outer tube; 311, guide limiting groove; 312, elastic strip; 32, limiting ring; 321, clamping groove; 33, push-pull rod; 331, stress plate; 34, elastic plate. DETAILED DESCRIPTION

[0029] The utility model will be described further, combining the drawings and specific implementation, it is to be explained that, under the premise of not conflicting, the following described each embodiment or each technical feature between can be combined randomly to form new embodiment.

[0030] It is to be explained that, when the element is called "fixed to" another element, it can be directly on another element, or there can be a central element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a central element. The "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] Referring to Figures 1-2 A food nutrition safety monitoring sampling device is provided in the application, comprising: a sampling base 1 and an opening and closing cover 2 pivotally connected to one side of the sampling base 1.

[0033] The sampling base 1 has a sample accommodating cavity 11, and the opening and closing cover 2 can cover the sample accommodating cavity 11.

[0034] The opening and closing cover 2 is provided with a plurality of mutually intersecting and communicating sliding rail through holes 21, one side or both sides of the inner wall of the sliding rail through hole 21 is provided with a plurality of uniformly distributed telescopic clamping blocks 211, and the plurality of telescopic clamping blocks 211 are sequentially arranged along the extension direction of the sliding rail through hole 21.

[0035] As Figure 3 And Figure 4As shown, the sampling assembly 3 is arranged in the slide rail through hole 21, and the sampling assembly 3 comprises a sampling outer tube 31 and a limiting ring 32, the limiting ring 32 is wrapped on the outer wall of the sampling outer tube 31, a plurality of clamping grooves 321 are formed on the outer wall of the limiting ring 32, the clamping grooves 321 are evenly arranged along the circumference of the limiting ring 32, the clamping grooves 321 are embedded with the elastic expansion blocks 211, a plurality of guide limiting grooves 311 are formed on the outer wall of the sampling outer tube 31, the guide limiting grooves 311 extend along the axial direction of the sampling outer tube 31, and a resilient strip 312 is arranged in the guide limiting groove 311, one end of the resilient strip 312 is fixed on the limiting ring 32, and the other end is fixed on the side wall of the guide limiting groove 311 away from the limiting ring 32, and the resilient strip 312 is used to drive the sampling outer tube 31 away from the sample containing cavity 11.

[0036] Specifically, the sample containing cavity 11 of the sampling base 1 is used to store the sample, and the opening and closing cover 2 is responsible for covering the sample containing cavity 11, and plays a protective role. The opening and closing cover 2 has a plurality of slide rail through holes 21 which are in communication with each other, which makes the sampling angle more flexible and can meet the needs of sampling from different directions. A plurality of elastic expansion blocks 211 are evenly distributed on one side or both sides of the inner wall of the slide rail through hole 21, and the elastic expansion blocks 211 are arranged in sequence along the extension direction of the slide rail through hole 21. The sampling assembly 3 comprises a sampling outer tube 31 and a limiting ring 32, the limiting ring 32 is wrapped on the outer wall of the sampling outer tube 31, the clamping grooves 321 arranged on the outer wall of the limiting ring 32 are embedded with the elastic expansion blocks 211, so that the sampling assembly 3 can not only be adjusted flexibly in the slide rail through hole 21, but also be fixed in the slide rail through hole 21, which provides protection for stable sampling from multiple directions. The resilient strip 312 is arranged in the axial guide limiting groove 311 of the outer wall of the sampling outer tube 31, one end of the resilient strip 312 is connected with the limiting ring 32, and the other end is fixed on the groove wall of the guide limiting groove 311, and the resilient strip 312 can drive the sampling outer tube 31 away from the sample containing cavity 11, that is, after sampling is completed, the sampling outer tube 31 can quickly return to the original position, and be ready for the next sampling. This design improves the convenience and efficiency of the whole sampling process, and makes the sampling work of food nutrition safety monitoring more stable and smooth.

[0037] With the help of the plurality of mutually intersecting and communicating sliding rail through holes 21 arranged on the open and close cover 2, and the elastic clamping blocks 211 arranged on one side or both sides of the inner wall of the sliding rail through hole 21 along the extension direction, cooperating with the limiting ring 32 slidingly wrapped on the outer wall of the sampling outer tube 31, the clamping groove 321 arranged on the limiting ring 32 is embedded with the elastic clamping blocks 211, which solves the problem that the related sampling device is difficult to sample stably from multiple directions, improves the accuracy of the subsequent food detection results, and reduces the error caused by the limitation of the sampling position; The outer wall of the sampling outer tube 31 is also provided with a guide limiting groove 311 extending along the axial direction of the sampling outer tube 31, and the guide limiting groove 311 is provided with a elastic strip 312, one end of the elastic strip 312 is connected with the limiting ring 32, and the other end is fixed to the groove wall of the guide limiting groove 311, so that after sampling is completed, the elastic strip 312 can drive the sampling outer tube 31 to quickly move away from the sample containing cavity 11, which improves the convenience and use efficiency of the whole device operation.

[0038] Further, as shown in Figure 5 and Figure 6 , the sampling assembly 3 further comprises a push-pull rod 33 and an elastic plate 34, one end of the push-pull rod 33 is located in the sampling outer tube 31 and is slidingly sleeved with the sampling outer tube 31, the elastic plate 34 is fixedly connected with the end of the push-pull rod 33 close to the sampling outer tube 31, and the elastic plate 34 abuts against the inner wall of the sampling outer tube 31.

[0039] Specifically, before sampling, the push-pull rod 33 can act as a limiting tool, and the operator can pre-adjust the position of the push-pull rod 33 according to the required sample amount to determine the sampling amount, effectively avoiding the situation of too much or too little sampling; After sampling is completed, only need to push the push-pull rod 33, the sample remaining in the sampling outer tube 31 can be easily pushed out, greatly facilitating the subsequent sample processing process; Moreover, after sampling is completed, the elastic plate 34 can be repeatedly pushed and pulled with the push-pull rod 33 to rub and scratch back and forth on the inner wall of the sampling outer tube 31, thereby cleaning the residual impurities attached to the inner wall, maintaining the cleanliness of the sampling outer tube 31, creating a good environment for the next sampling, and avoiding cross contamination of the sample.

[0040] Further, as shown in Figure 7 , the opposite sides of the sampling base 1 are provided with adjusting grooves 12, screw holes 13 and fixing assemblies 14, the screw holes 13 penetrate from the outer walls of the opposite sides of the sampling base 1 to the adjusting grooves 12, the side wall parallel to the screw hole 13 on the inner wall of the adjusting groove 12 is provided with a guide groove 121, the fixing assembly 14 comprises a fixing rod 141, a guide block 142 and an adjusting rod 143, the fixing rod 141 is connected with the guide block 142, the fixing rod 141 is used for fixing the sampled object, the guide block 142 is slidingly matched with the guide groove 121, and the adjusting rod 143 is arranged in the screw hole 13 and matched with the screw hole 13 to compress the fixing rod 141.

[0041] Specifically, the opposite sides of the sampling base 1 are equipped with the fixing assembly 14, so that the device can firmly hold the sampled article, avoid shaking and displacement of the article during sampling, and ensure the accuracy and stability of sampling; the sliding cooperation of the guide groove 121 and the guide block 142 facilitates flexible adjustment of the position of the fixing rod 141 according to the size and shape of the sampled article, thereby enhancing the adaptability of the device to different samples; the way of tightening the fixing rod 141 through the screw hole 13 and the adjusting rod 143 is simple to operate and can quickly complete the fixing and loosening action, thereby improving the sampling efficiency of the device.

[0042] Further, the end of the fixing rod 141 away from the guide groove 121 is fixedly connected with a limiting rod 1411, and the limiting rod 1411 is arranged in a direction perpendicular to the adjusting rod 143. The limiting rod 1411 is used for fixing the sampled article.

[0043] Specifically, during sampling, the sampled article has various forms, and simply relying on the fixing rod 141 to fix has a concentrated force point and limited stability. The added limiting rod 1411 increases the contact area with the sampled article and disperses the pressure applied during fixing, so that the stress is more uniform, and the shaking and deviation of the article during sampling is reduced.

[0044] Further, the two ends of the limiting rod 1411 are connected with limiting blocks 1412, respectively. The fixing assembly 14 further includes soft elastic bands 1413, and the two ends of each soft elastic band 1413 are connected with one of the two limiting blocks 1412 at the two ends of the limiting rod 1411, respectively. The two soft elastic bands 1413 are used to cooperatively clamp the sampled article.

[0045] Specifically, compared with simply relying on hard components for fixing, the soft elastic band 1413 has good flexibility and stretchability. It can fit different shapes and different surface textures of the article, and adaptively adjust its own form, thereby filling the gap between the limiting rod 1411 and the article, and cooperatively clamping the article from more directions with the limiting rod 1411. This not only greatly enhances the stability of the fixing, but also avoids damaging the sampled article due to excessive extrusion, thereby improving the reliability of the sampling operation of the device.

[0046] Further, the sampling base 1 is provided with a first through hole 15 away from the end pivoted to the opening and closing cover 2, and the opening and closing cover 2 is provided with a second through hole 22 corresponding to the end pivoted to the sampling base 1. The first through hole 15 and the second through hole 22 are inserted with the same insertion rod.

[0047] Specifically, after the insertion rod is inserted into the first through hole 15 and the second through hole 22, the sampling base 1 and the opening and closing cover 2 can be firmly fixed, the structure of the device is more stable, and the opening and closing cover 2 is prevented from being accidentally opened during sampling, thereby ensuring the smooth development of the sampling operation.

[0048] Further, the outer wall of the adjusting rod 143 is provided with external threads, and the inner wall of the screw hole 13 is provided with internal threads matched with the external threads. In actual use, when it is necessary to fix the sampled object, the adjusting rod 143 only needs to be screwed into the screw hole 13. By the close engagement between the threads, the operator can control the depth of the adjusting rod 143 into the screw hole 13 by rotating the adjusting rod 143, and then control the pressing force applied to the fixing rod 141, so that the sampled object with soft or hard texture can be properly fixed. Moreover, the threaded connection has strong stability, and even if the adjusting rod 143 is subjected to a certain external force impact or vibration during the sampling process, the adjusting rod 143 is not easy to loosen, and the fixing rod 141 always maintains the stable clamping of the object, thereby effectively ensuring the stable advancement of the sampling operation and avoiding the sampling deviation caused by the fixing problem.

[0049] Further, the end of the push-pull rod 33 away from the elastic plate 34 is provided with a force receiving plate 331.

[0050] Specifically, when the operator wants to control the push-pull rod 33 to perform the sampling related action, it is not convenient to directly apply force to the end of the push-pull rod 33, and the force receiving plate 331 increases the force receiving area, so that the contact between the hand and the push-pull rod 33 is more stable and comfortable. Whether it is to push the push-pull rod 33 to determine the sampling depth, or to push the push-pull rod 33 to push out the sample, or to repeatedly push and pull to clean the inner wall of the sampling outer tube 31, with the help of the force receiving plate 331, the operator can apply force more easily and accurately. This design improves the convenience and controllability of the entire sampling operation.

[0051] Further, the opening and closing cover 2 is a component made of transparent material.

[0052] Specifically, the transparent material gives the opening and closing cover 2 the visual feature. In the sampling process of food nutrition safety monitoring, the operator can directly observe the state of the sample in the sample containing cavity 11 through the opening and closing cover 2 without opening the cover, such as checking whether the sampling amount meets the standard, whether there is stratification or precipitation, etc. This design saves the time of frequently opening and closing the cover 2 for checking, and improves the sampling efficiency.

[0053] Further, the sampling outer tube 31 is a component made of transparent material, and the outer side wall of the sampling outer tube 31 is provided with a sampling amount scale.

[0054] Specifically, the transparent material enables the sampling outer tube 31 to have the advantage of visualization, so that the operator can clearly see the sample collection inside the sampling outer tube 31 when sampling. Before formal sampling, in combination with the sampling amount scale table arranged on the outer side wall of the sampling outer tube 31, the worker can adjust the position of the push-pull rod 33 according to the detection requirements and refer to the scale table, so as to determine the sample amount to be collected in advance; during the sampling process, the operator can observe the sample collection progress in real time, and thus control it at any time.

[0055] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0056] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0057] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A food nutrition safety monitoring sampling device, characterized by, The utility model relates to a sampling device, including: Sampling base (1) and with one side pivot connection of sampling base (1) open and close lid (2), sampling base (1) has sample containing cavity (11), open and close lid (2) can cover sample containing cavity (11), Open and close lid (2) is provided with multiple mutually intersecting sliding rail through -hole (21), the inner wall of sliding rail through -hole (21) one side or both sides is provided with multiple evenly distributed telescopic clamping block (211), multiple telescopic clamping block (211) are sequentially arranged along the extension direction of sliding rail through -hole (21), Sliding rail through -hole (21) is provided with sampling assembly (3) in, sampling assembly (3) includes sampling outer tube (31) and limiting ring (32), limiting ring (32) is covered on the outer wall of sampling outer tube (31), the outer wall of limiting ring (32) is provided with multiple clamping grooves (321), the clamping groove (321) is evenly arranged along the circumference of limiting ring (32), the clamping groove (321) is embedded with telescopic clamping block (211), the outer wall of sampling outer tube (31) is provided with multiple guide limiting grooves (311), the guide limiting groove (311) extends along the axial direction of sampling outer tube (31), the guide limiting groove (311) contains elastic strip (312), one end of elastic strip (312) is fixed on limiting ring (32), the other end is fixed on the side wall of guide limiting groove (311) away from limiting ring (32), and elastic strip (312) is used to drive sampling outer tube (31) away from sample containing cavity (11).

2. The food nutrition safety monitoring sampling device according to claim 1, wherein, Sampling assembly (3) further includes push-pull rod (33) and elastic plate (34), one end of push-pull rod (33) is located in sampling outer tube (31) and is slidably connected with sampling outer tube (31), elastic plate (34) is fixedly connected with the end of push-pull rod (33) close to sampling outer tube (31), and elastic plate (34) abuts against the inner wall of sampling outer tube (31).

3. The food nutrition safety monitoring sampling device according to claim 1, wherein, The opposite sides of sampling base (1) are provided with adjusting groove (12), screw hole (13) and fixing assembly (14), screw hole (13) penetrates from the outer wall of the opposite sides of sampling base (1) to adjusting groove (12), the side wall on the inner wall of adjusting groove (12) parallel with screw hole (13) is provided with guide groove (121), fixing assembly (14) includes fixing rod (141), guide block (142) and adjusting rod (143), fixing rod (141) is connected with guide block (142), fixing rod (141) is used for fixing the sampled article, guide block (142) is slidably connected with guide groove (121), and adjusting rod (143) is arranged in screw hole (13) and is matched with screw hole (13) to compress fixing rod (141).

4. The food nutrition safety monitoring sampling device according to claim 3, wherein, The fixed rod (141) is fixedly connected with a limiting rod (1411) at one end away from the guide groove (121), the limiting rod (1411) is arranged in a direction perpendicular to the adjusting rod (143), and the limiting rod (1411) is used for fixing the sampled article.

5. The food nutrition safety monitoring sampling device according to claim 4, wherein, Both ends of the limiting rod (1411) are connected with limiting blocks (1412) respectively, the fixed assembly (14) further comprises soft elastic bands (1413), both ends of the soft elastic bands (1413) are connected with the limiting blocks (1412) at both ends of the limiting rod (1411) in one-to-one correspondence respectively, and the two soft elastic bands (1413) are used for clamping the sampled article cooperatively.

6. The food nutrition safety monitoring sampling device according to claim 1, wherein, The sampling base (1) is provided with a first through hole (15) at one end away from the hinge joint with the opening and closing cover (2), the opening and closing cover (2) is provided with a second through hole (22) at an end corresponding to the end of the hinge joint with the sampling base (1) in a corresponding manner, and the first through hole (15) and the second through hole (22) can be inserted with the same insertion rod.

7. The food nutrition safety monitoring sampling device according to claim 3, wherein, An outer wall of the adjusting rod (143) is provided with an external thread, and an inner wall of the screw hole (13) is provided with an internal thread matched with the external thread.

8. The food nutrition safety monitoring sampling device according to claim 2, wherein, One end of the push-pull rod (33) away from the elastic plate (34) is provided with a stress plate (331).

9. The food nutrition safety monitoring sampling device according to claim 1, wherein, The opening and closing cover (2) is a component made of transparent material.

10. The food nutrition safety monitoring sampling device according to claim 1, wherein, The sampling outer tube (31) is a component made of transparent material, and an outer side wall of the sampling outer tube (31) is provided with a sampling amount scale table.

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