A food safety testing sampling device

Abstract

The present invention relates to the technical field of detection and sampling devices, and discloses a food safety detection and sampling device, including a base plate as the basic component of the overall device, with handles fixedly connected to the middle of both sides of the top, which are used to assemble and carry various processing mechanisms and their subordinate structural parts; a sampling adjustment mechanism, which is arranged on one side of the middle of the base plate, and is used to adjust the sampling equipment accordingly according to the depth of grain accumulation in the granary; and an unfolding sampling mechanism, which is arranged on one side of the bottom of the base plate. In addition to traditional grain sample sampling, the device also detects and samples the gas around the grain and the metal impurities inside the grain. This multiple detection and sampling mechanism ensures a comprehensive understanding of the grain quality, provides complete data support for the sample, and through the analysis of the gas composition, the impact of the storage environment can be evaluated, and the detection of metal impurities can ensure the purity and safety of the grain.

Description

Technical Field

[0001] The invention relates to the technical field of detection sampling devices, in particular to a food safety detection sampling device. Background Art

[0002] Large granaries refer to facilities that are specifically used to store large quantities of grain. These facilities usually include warehouses, cargo yards, and supporting facilities such as metering, transportation, stacking, cleaning, loading and unloading, ventilation, and drying, and are equipped with instruments for measuring, sampling, inspection, and testing. The design and construction of large granaries take into account a variety of factors, including grain types, storage capacity, and construction costs, to ensure safe storage and effective management of grain.

[0003] As people's living standards continue to improve, people are paying more and more attention to food safety issues. Although the rich variety of food makes people's lives more comfortable, food safety issues also arise as the variety of food increases. As the raw materials of various foods, that is, various grains, their food safety cannot be ignored. Granaries are used as storage places for grains. Since each granary stores a large amount of grain, it is difficult to sample grain at various positions and depths inside the granary. The existing sampling devices have a limited sampling range and a small sampling area. The samples taken cannot show the true situation of the grain in the granary. At the same time, this type of sampling device needs to perform multiple sampling processes when sampling, and the sampling efficiency is low. Therefore, technical personnel in this field have proposed a food safety detection sampling device to solve the above-mentioned technical problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a food safety detection sampling device, which solves the problems of limited sampling range and small sampling area of ​​the prior sampling devices.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a food safety detection sampling device, comprising

[0006] The base plate is the basic component of the whole device. The middle parts of both sides of the top are fixedly connected with handles, which are used to assemble and carry various processing mechanisms and their lower structural parts.

[0007] The sampling adjustment mechanism is arranged on one side of the middle part of the base plate and is used to adjust the sampling device accordingly according to the depth of grain accumulation in the granary;

[0008] The expanded sampling mechanism is arranged on one side of the bottom end of the base plate and is used to expand and sample the grain at the sampling position deep inside the grain in the granary;

[0009] The gas sampling mechanism is arranged on one side of the middle part of the top of the base plate and is used to sample and detect the gas inside the grain in the granary;

[0010] The impurity detection mechanism is arranged on the expanded sampling mechanism and is used to detect and process the metal impurity content in the grain at the sampling position.

[0011] Preferably, the sampling adjustment mechanism includes a mounting ring seat, a mounting ring seat is provided on one side of the middle portion of the base plate, an adjusting outer bottom tube is provided inside the mounting ring seat, a connecting base is fixedly connected to the top of the inner wall of the adjusting outer bottom tube, top movable grooves are provided on both sides of the middle portion of the top end of the connecting base, a middle movable groove is provided in the middle portion of the inner side of the connecting base, and the middle movable groove is connected to the interior of the top movable groove, and a hole-shaped groove is provided in the middle portion of the top end of the top movable groove.

[0012] Preferably, the sampling adjustment mechanism also includes an adjusting outer top cylinder, the top of the adjusting outer bottom cylinder is provided with an adjusting outer top cylinder, the middle and lower parts of the inner wall of the adjusting outer top cylinder are fixedly connected with a connecting top seat, the middle sides of the bottom end of the connecting top seat are fixedly connected with ball head connecting rods, and the bottom ends of the ball head connecting rods respectively pass through the hole-shaped grooves at the corresponding positions and enter into the middle movable groove.

[0013] Preferably, the expanded sampling mechanism includes a slot, and a plurality of slots are arranged in a circular array in the middle and lower parts of the adjustable outer bottom tube. A sampling inner tube is arranged inside the adjustable outer bottom tube, and the top end of the sampling inner tube extends into the adjustable outer top tube. The sampling inner tube is composed of a top closing part, a plurality of deformation parts and a bottom closing part from top to bottom. An arc groove is arranged in the middle part of the inner wall of the plurality of deformation parts, and the positions of the deformation parts correspond to the positions of the slots. A plurality of openings are arranged in a circular array in the middle part of the bottom end of the bottom closing part.

[0014] Preferably, the expansion sampling mechanism also includes a pressing seat, a pressing seat is provided on the top of the adjusting outer top tube, an opening is opened in the middle of the bottom end of the adjusting outer bottom tube, a bottom isolation seat is fixedly connected to the middle and upper part of the inner side of the opening, a bottom closing plate matching it is provided in the middle and lower part of the inner side of the opening, a support rod is slidably connected to the middle of the bottom isolation seat, and the bottom end of the support rod is connected to the middle of the bottom closing plate, the top of the support rod is fixedly connected to a perforated plate, one side of the top of the bottom isolation seat is connected to one side of the middle of the bottom end of the perforated plate through a reset spring, the top of the bottom isolation seat is arranged on a multi-section closing sleeve, and the top of the multi-section closing sleeve is connected to the corresponding position of the perforated plate.

[0015] Preferably, the gas sampling mechanism includes a bottom ring seat, the bottom end of the adjusting outer bottom cylinder is fixedly connected with a bottom ring seat near the edge, the inner bottom of the bottom ring seat is provided with an iron mesh plate, the middle part of the top end of the base plate is provided with a temporary storage cylinder, the inner side of the temporary storage cylinder is provided with a temporary storage cavity, the inner side of the temporary storage cavity is provided with a piston seat, the middle part of the top end of the temporary storage cylinder is provided with a pull-out seat, and the bottom end of the pull-out seat passes through the temporary storage cylinder and is connected to the middle part of the piston seat, the interior of the bottom ring seat is communicated with one end of connecting tube two, the other end of connecting tube two passes through the sampling inner cylinder and is communicated with the interior of the temporary storage cavity, and a one-way valve one is provided on connecting tube two.

[0016] Preferably, the gas sampling mechanism also includes a gas detector, and a gas detector is arranged on one side of the middle part of the top of the substrate, the gas inlet of the gas detector is connected to one end of the connecting tube one, the other end of the connecting tube one is connected to the interior of the temporary storage chamber, and a one-way valve two is arranged on the connecting tube one.

[0017] Preferably, the impurity detection mechanism includes a mounting position, and a plurality of mounting positions are provided in a circular array at a position near the end of the middle and upper part of the inner wall of the adjusting outer top cylinder, and a magnetic roller is rotatably connected in each of the mounting positions, and a plurality of arc scrapers are fixedly connected at equal intervals on the inner side of the magnetic roller, and a suction cavity is formed between the arc scraper and the inner wall of the magnetic roller on an adjacent side, and a magnetic attraction layer is provided on the outer wall of the deformation portion.

[0018] Working principle: When taking samples for food safety testing of grain in the granary, the staff first moves the entire device to the sampling position and confirms the sampling depth of the grain in the granary. After the sampling depth is confirmed, the staff prepares to adjust the outer bottom cylinder, the outer top cylinder and the sampling inner cylinder corresponding to the sampling depth, and then the sampling adjustment mechanism is started. First, the staff places the base plate flat on the grain surface at the sampling position, and adjusts its balance so that the base plate and the equipment thereon are at an angle parallel to the grain surface. Then the staff installs the adjusting outer bottom cylinder in the mounting ring seat on the base plate. After the adjusting outer bottom cylinder is installed in the mounting ring seat, the staff presses the adjusting outer bottom cylinder in the mounting ring seat, so that the bottom of the adjusting outer bottom cylinder is gradually inserted into the interior of the grain in the granary. When the top of the adjusting outer bottom cylinder is flush with the mounting ring seat on the base plate, the staff takes out the adjusting outer top cylinder, thereby aligning the bottom of the adjusting outer top cylinder with the top of the adjusting outer bottom cylinder. When the adjusting outer top tube is connected with the adjusting outer bottom tube, the ball head connecting rod on the connecting top seat in the adjusting outer top tube is inserted into the hole-shaped groove of the connecting base at the top of the adjusting outer bottom tube. After the ball head connecting rod on the connecting top seat enters the hole-shaped groove on the connecting base, the staff will rotate the adjusting outer top tube. When the adjusting outer top tube rotates, it drives the connecting top seat and the ball head connecting rod at the bottom to rotate synchronously. When the ball head connecting rod rotates, its rod part enters the top moving groove on the connecting base, and its ball part enters the middle moving groove on the connecting base, so that the adjusting outer top tube and the adjusting outer bottom tube are connected through the cooperation of the ball head connecting rod and the connecting base. After the connection is completed, the staff will press down the adjusting outer top tube in the mounting ring seat, so that the adjusting outer top tube and the adjusting outer bottom tube at the bottom are gradually inserted into the grain inside the granary. When the bottom of the adjusting outer bottom tube reaches the sampling depth, the staff can stop pressing to complete the adjustment of the sampling equipment.Then the sampling mechanism is unfolded and started. The staff inserts the sampling inner cylinder that matches the sampling depth into the adjusting outer top cylinder and presses it so that its bottom contacts the hole plate inside the adjusting outer bottom cylinder. At this time, the staff presses the sampling inner cylinders inside the adjusting outer top cylinder and the adjusting outer bottom cylinder through the pressing seat on the adjusting outer top cylinder. First, the deformation part on the sampling inner cylinder is deformed after being subjected to pressure. After the deformation, the sampling inner cylinder is lantern-shaped, and the deformed sampling inner cylinder is opened through the slot on the adjusting outer bottom cylinder, so that the deformed part opens to the grain at the specified sampling position and the specified sampling depth. At this time, the grain at the sampling position flows into the arc groove inside the deformation part, thereby completing the The local grain sampling process with the sampling position as the center and the expansion distance of the deformation part after deformation as the radius is carried out. At the same time, as the staff presses the sampling inner cylinder in the adjusting outer top cylinder and the adjusting outer bottom cylinder through the pressing seat, the sampling inner cylinder moves downward synchronously inside the adjusting outer bottom cylinder, and the bottom of the sampling inner cylinder presses down the perforated plate to move downward synchronously. When the perforated plate moves downward, it drives the bottom closing plate in the opening one to move downward synchronously through the support rod on the bottom isolation seat. When the perforated plate moves downward synchronously, it squeezes the reset spring and the support rod to shrink. At the same time, the downward moving bottom closing plate also changes the state of the opening one from the closed state to the conductive state. At this time, the grain at the bottom of the adjusting outer bottom cylinder flows due to the pressure change, and the grain passes through the opening one at the bottom of the adjusting outer bottom cylinder and The opening on the perforated plate and the second opening at the bottom of the bottom sealing part enter into the bottom sealing part, so as to complete the grain sampling process at the center of the sampling position, and at the same time, the gas sampling mechanism is started. While the sampling mechanism is being deployed, the staff moves up by pulling the pull-out seat on the temporary storage cylinder. The pull-out seat drives the piston seat in the temporary storage chamber to move up synchronously while moving up, and the piston seat pumps the gas in the bottom ring seat through the connecting pipe 2 while moving up. Affected by the one-way valve 2 on the connecting pipe 1, the gas in the grain around the bottom ring seat enters into the bottom ring seat through the iron mesh plate at the bottom of the bottom ring seat, and is transported into the temporary storage chamber of the connecting pipe 2 through the connecting pipe 2. After the gas in the grain around the bottom ring seat is extracted to a certain amount, the staff will then pump the temporary storage The pull-out seat on the cylinder is pressed to reset it, and the pull-out seat drives the piston seat inside it to move downward synchronously. Affected by the one-way valve 2 on the connecting pipe 2, the gas in the temporary storage chamber is squeezed and enters the gas detector through the connecting pipe 1 for detection. After the gas detector completes the detection of the injected gas, its detection result is displayed on the display screen of the gas detector, thereby completing the sampling and detection of the gas in the grain at the sampling position; at the same time, the impurity detection mechanism is started, and when the deformation part on the sampling inner cylinder is deformed and opened due to pressure, the magnetic attraction layer on the deformation part is also opened synchronously, and contacts with the impurities in the local grain at the designated sampling position, and the metal impurities in the grain at the sampling position are adsorbed by the deformation part;After the staff completes the sampling operation of the grain at the specified depth and the specified position, the staff will extract the sampling inner cylinder inside the adjusting outer top cylinder and the adjusting outer bottom cylinder. When the sampling inner cylinder is extracted, the metal impurities adsorbed by the magnetic layer on the deformation part will also move upward synchronously in the adjusting outer top cylinder and the adjusting outer bottom cylinder. When the metal impurities adsorbed on the magnetic layer move to the top position of the adjusting outer top cylinder, the magnetic layer on the outer wall of the deformation part will contact the magnetic roller in the installation position. As the sampling inner cylinder is extracted, the friction of the outer wall of the sampling inner cylinder synchronously drives the arc scraper on the magnetic roller to rotate synchronously. The arc scraper scrapes off the metal impurities adsorbed on the outer wall of the magnetic layer while rotating under friction, and collects them in the suction cavity on the magnetic roller through the effect of magnetic attraction. The staff can check the content of metal impurities in the grain at the sampling position by rotating the magnetic roller in the installation position, thereby completing the detection and processing of metal impurities in the grain at the sampling position. ;

[0019] The present invention provides a food safety detection sampling device, which has the following beneficial effects:

[0020] 1. The present invention significantly improves the convenience and adaptability of grain sampling by adding and setting a sampling adjustment mechanism. When sampling grain in a granary, the mechanism can flexibly adjust the depth of the sampling device to meet the needs of different staff members. This adjustment function not only improves the accuracy and efficiency of sampling, but also enhances the adaptability of the equipment in various operating environments. By optimizing the setting of the sampling depth, the operating difficulty of the staff when sampling grain in the granary can be effectively reduced, and the stability and consistency of the sampling process are guaranteed, thereby improving the use experience and reliability of the overall device;

[0021] 2. The present invention significantly improves the comprehensiveness and sample representativeness of grain sampling by adding and setting a spreading sampling mechanism. The mechanism can not only sample at a specified position and depth, but also use the deformation part to effectively sample grain around the sampling point, thereby expanding the sampling area. At the same time, the mechanism can also collect grain samples at the center of the sampling point, mix the two parts of the sample, and form a more uniform and complete sampling sample. This design not only improves the accuracy of sampling, but also ensures the representativeness of the sample, thereby providing more reliable data support for grain quality monitoring and analysis;

[0022] 3. The present invention significantly improves the comprehensiveness and accuracy of grain sampling in the granary by adding and setting a gas sampling mechanism. The mechanism can not only sample grain at a specified position and depth, but also collect and detect the gas in the grain around the sampling point. This dual sampling mode ensures that when evaluating the quality of grain, the gas information of the grain sample and its surrounding environment can be obtained at the same time, thereby providing more comprehensive data. By analyzing the gas composition, the changes in the grain storage environment and its potential impact on the grain quality can be further understood, thereby improving the accuracy and reliability of grain quality monitoring in the granary;

[0023] 4. The present invention effectively improves the impurity detection capability in the grain sampling process by adding and setting an impurity detection mechanism. The mechanism can not only collect and detect metal impurities in the grain around the sampling point when sampling grain at a specified position and depth in the granary. This design ensures that not only grain samples can be obtained during the sampling process, but also potential metal impurities can be identified and processed in real time, thereby improving the purity and safety of the grain. In addition, by accurately detecting metal impurities, the risk of pollution can be effectively reduced, the quality of grain can be guaranteed, and the edible safety of food processed from the subsequent grain can also be improved.

[0024] 5. In the process of sampling grain in the granary, the present invention realizes the comprehensive detection of multiple key factors. In addition to the traditional grain sampling, the device also detects and samples the gas around the grain and the metal impurities inside the grain. This multiple detection and sampling mechanism ensures a comprehensive understanding of the grain quality, provides complete data support for the samples, and through the analysis of the gas composition, the impact of the storage environment can be evaluated, and the detection of metal impurities can ensure the purity and safety of the grain. This comprehensive detection method significantly improves the accuracy and reliability of grain quality monitoring, and helps to optimize grain management and processing processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the rear structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the local structure of the adjustable outer bottom tube of the present invention;

[0028] Figure 4 It is a schematic diagram of the local structure of the adjustable outer top cylinder of the present invention;

[0029] Figure 5 It is a cross-sectional schematic diagram of the internal structure of the adjustable outer bottom tube of the present invention;

[0030] Figure 6 For the present invention Figure 5 A schematic diagram of the structure at A;

[0031] Figure 7 This is a schematic diagram of the structure of the sampling inner cylinder of the present invention in use state;

[0032] Figure 8 It is a schematic diagram of the bottom ring seat structure of the present invention;

[0033] Fig. 9 It is a cross-sectional schematic diagram of the internal structure of the temporary storage tube of the present invention;

[0034] Fig.10 It is a schematic diagram of the local structure of the adjustable outer top cylinder of the present invention;

[0035] Fig.11 It is a schematic diagram of the structure of the magnetic roller of the present invention.

[0036] Among them, 1. substrate; 2. gas detector; 3. connecting pipe 1; 4. pull-out seat; 5. connecting pipe 2; 6. pressing seat; 7. adjusting outer top cylinder; 8. one-way valve 1; 9. carrying rod; 10. mounting ring seat; 11. slot; 12. bottom ring seat; 13. deformation part; 14. adjusting outer bottom cylinder; 15. temporary storage cylinder; 16. one-way valve 2; 17. connecting base; 18. hole-shaped groove; 19. top movable groove; 20. middle movable groove; 21. connecting top seat; 22 , ball head connecting rod; 23, perforated plate; 24, support rod; 25, multi-section sealing sleeve; 26, bottom isolation seat; 27, bottom sealing plate; 28, opening one; 29, reset spring; 30, sampling inner cylinder; 31, arc groove; 32, magnetic attraction layer; 33, opening two; 34, bottom sealing part; 35, top sealing part; 36, iron mesh plate; 37, piston seat; 38, temporary storage chamber; 39, installation position; 40, arc scraper; 41, magnetic roller; 42, suction chamber. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings of the specification 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.

[0038] Please see attached Figure 1 - Attachment Figure 2 The embodiment of the present invention provides a food safety detection sampling device, including a base plate 1 as a basic component of the overall device, and a carrying rod 9 is fixedly connected to the middle of both sides of the top thereof, which is used to assemble and carry various processing mechanisms and their lower structural parts;

[0039] Please see attached Figure 3 - Attachment Figure 4 , a sampling adjustment mechanism, which is arranged on one side of the middle part of the base plate 1, and is used to adjust the sampling device accordingly according to the depth of grain accumulation in the granary;

[0040] The sampling adjustment mechanism includes a mounting ring seat 10. The mounting ring seat 10 is arranged on one side of the middle part of the base plate 1. An adjusting outer bottom tube 14 is arranged inside the mounting ring seat 10. A connecting base 17 is fixedly connected to the top of the inner wall of the adjusting outer bottom tube 14. Top movable grooves 19 are provided on both sides of the middle part of the top end of the connecting base 17. A middle movable groove 20 is provided in the middle part of the inner side of the connecting base 17, and the middle movable groove 20 is connected with the inside of the top movable groove 19. A hole-shaped groove 18 is provided in the middle part of the top end of the top movable groove 19.

[0041] When the sampling adjustment mechanism is started, the staff first places the base plate 1 flat on the grain surface at the sampling position and adjusts its balance so that the base plate 1 and the equipment thereon are at an angle parallel to the grain surface. The staff then installs the adjusting outer bottom tube 14 in the mounting ring seat 10 on the base plate 1. After the adjusting outer bottom tube 14 is installed in the mounting ring seat 10, the staff presses the adjusting outer bottom tube 14 in the mounting ring seat 10, so that the bottom of the adjusting outer bottom tube 14 is gradually inserted into the interior of the grain in the granary.

[0042] The sampling adjustment mechanism also includes an adjusting outer top cylinder 7. The top of the adjusting outer bottom cylinder 14 is provided with an adjusting outer top cylinder 7. The middle and lower parts of the inner wall of the adjusting outer top cylinder 7 are fixedly connected with a connecting top seat 21. Both sides of the middle part of the bottom end of the connecting top seat 21 are fixedly connected with ball head connecting rods 22, and the bottom ends of the ball head connecting rods 22 respectively pass through the hole-shaped grooves 18 at the corresponding positions and enter into the middle movable groove 20.

[0043] When the top of the adjustable outer bottom tube 14 is flush with the mounting ring seat 10 on the base plate 1, the staff takes out the adjustable outer top tube 7, so as to dock the bottom of the adjustable outer top tube 7 with the top of the adjustable outer bottom tube 14. At the same time, when the adjustable outer top tube 7 is docked with the adjustable outer bottom tube 14, the ball head connecting rod 22 on the connecting top seat 21 in the adjustable outer top tube 7 is inserted into the hole-shaped groove 18 of the connecting base 17 at the top of the adjustable outer bottom tube 14, and the ball head connecting rod 22 on the connecting top seat 21 enters into the connecting base 17, the staff will adjust the outer top tube 7 to rotate, and the adjusting outer top tube 7 will drive the connecting top seat 21 and the ball head connecting rod 22 at the bottom to rotate synchronously while rotating. The ball head connecting rod 22 will rotate so that its rod part enters into the top moving groove 19 on the connecting base 17, and its ball part enters into the middle moving groove 20 on the connecting base 17, so that the adjusting outer top tube 7 is connected to the adjusting outer bottom tube 14 through the cooperation of the ball head connecting rod 22 and the connecting base 17.

[0044] Then after the connection is completed, the staff will press down the adjustable outer top cylinder 7 in the installation ring seat 10, so that the adjustable outer top cylinder 7 and the adjustable outer bottom cylinder 14 at the bottom thereof are gradually inserted into the grain inside the granary. When the bottom of the adjustable outer bottom cylinder 14 reaches the sampling depth, the staff can stop pressing to complete the adjustment of the sampling equipment.

[0045] Please see attached Figure 5 - Attachment Figure 7 , a sampling mechanism is arranged on one side of the bottom end of the base plate 1, and is used to perform sampling processing on the grain at the sampling position deep inside the grain in the granary;

[0046] The expanded sampling mechanism includes a slot 11, and a plurality of slots 11 are arranged in a circular array in the middle and lower parts of the adjusting outer bottom tube 14. A sampling inner tube 30 is arranged inside the adjusting outer bottom tube 14, and the top end of the sampling inner tube 30 extends into the adjusting outer top tube 7. The sampling inner tube 30 is composed of a top closing part 35, a plurality of deformation parts 13 and a bottom closing part 34 from top to bottom. An arc groove 31 is arranged in the middle of the inner wall of the plurality of deformation parts 13, and the positions of the deformation parts 13 correspond to the positions of the slots 11. A plurality of openings 33 are arranged in a circular array in the middle part of the bottom end of the bottom closing part 34.

[0047] When the sampling mechanism is started, the staff inserts the sampling inner cylinder 30 matching the sampling depth into the adjusting outer top cylinder 7, and presses it so that its bottom contacts the perforated plate 23 in the adjusting outer bottom cylinder 14. At this time, the staff presses the sampling inner cylinder 30 in the adjusting outer top cylinder 7 and the adjusting outer bottom cylinder 14 through the pressing seat 6 on the adjusting outer top cylinder 7. First, the deformation portion 13 on the sampling inner cylinder 30 is deformed after being subjected to pressure. The sampling inner cylinder 30 after deformation is lantern-shaped, and the sampling inner cylinder 30 after deformation is opened through the slot 11 on the adjusting outer bottom cylinder 14, so that the deformation portion 13 after deformation opens to the grain inside the specified sampling position and the specified sampling depth. At this time, the grain at the sampling position flows into the arc groove 31 inside the deformation portion 13, thereby completing the local grain sampling process with the sampling position as the center and the expansion distance of the deformation portion 13 after deformation as the radius.

[0048] The expansion sampling mechanism also includes a pressing seat 6, a pressing seat 6 is arranged on the top of the adjusting outer top tube 7, an opening 28 is opened in the middle of the bottom end of the adjusting outer bottom tube 14, a bottom isolation seat 26 is fixedly connected to the middle and upper part of the inner side of the opening 28, a bottom closing plate 27 matching it is arranged in the middle and lower part of the inner side of the opening 28, a support rod 24 is slidably connected to the middle part of the bottom isolation seat 26, and the bottom end of the support rod 24 is connected to the middle part of the bottom closing plate 27, the top end of the support rod 24 is fixedly connected to the perforated plate 23, one side of the top end of the bottom isolation seat 26 is connected to one side of the middle part of the bottom end of the perforated plate 23 through a reset spring 29, the top end of the bottom isolation seat 26 is arranged on a multi-section closing sleeve 25, and the top end of the multi-section closing sleeve 25 is connected to the corresponding position of the perforated plate 23.

[0049] At the same time, as the staff presses the adjusting outer top cylinder 7 and the sampling inner cylinder 30 in the adjusting outer bottom cylinder 14 through the pressing seat 6, the sampling inner cylinder 30 moves downward synchronously inside the adjusting outer bottom cylinder 14, and the bottom of the sampling inner cylinder 30 presses down the perforated plate 23 while moving downward to move downward synchronously. While the perforated plate 23 moves downward, it drives the bottom closing plate 27 in the opening 28 to move downward synchronously through the support rod 24 on the bottom isolation seat 26. While the perforated plate 23 moves downward synchronously, it squeezes the reset spring 29 and the support rod 24 to shrink. At the same time, the downward moving bottom closing plate 27 also changes the state of the opening 28 from a closed state to a conductive state. At this time, the grain at the bottom of the adjusting outer bottom cylinder 14 flows due to the pressure change, and the grain enters into the bottom closing part 34 through the opening 28 at the bottom of the adjusting outer bottom cylinder 14, the opening on the perforated plate 23, and the opening 2 33 at the bottom of the bottom closing part 34 in turn, thereby completing the grain sampling process at the center of the sampling position.

[0050] After the sampling operation is completed, the staff no longer presses the sampling inner cylinder 30 by adjusting the pressing seat 6 on the outer top cylinder 7. The pressure on the upper part of the perforated plate 23 disappears, and the reset spring 29 on the bottom isolation seat 26 is reset. While the reset spring 29 is reset, it drives the support rod 24 on the bottom isolation seat 26 to reset synchronously. While the support rod 24 is reset, it drives the bottom closing plate 27 at its bottom, the perforated plate 23 at its top, and the multi-section closing sleeve 25 at the bottom of the perforated plate 23 to reset. At the same time, after the pressure on the deformed deformation part 13 disappears, it is also reset synchronously. The grain sample sampled at the arc groove 31 in the deformation part 13 enters the bottom of the sampling inner cylinder 30 and mixes with the central grain sample in the bottom closing part 34. After completing other operations, the staff pulls the sampling inner cylinder 30 out of the adjusting outer top cylinder 7 and the adjusting outer bottom cylinder 14 to conduct subsequent analysis on the grain sampling samples.

[0051] Please see attached Figure 8 - Attachment Fig. 9, a gas sampling mechanism, which is arranged on one side of the middle part of the top of the substrate 1, and is used to sample and detect the gas inside the grain in the granary;

[0052] The gas sampling mechanism includes a bottom ring seat 12, and the bottom end of the adjusting outer bottom tube 14 is fixedly connected with the bottom ring seat 12 near the edge, and an iron mesh plate 36 is arranged at the inner bottom of the bottom ring seat 12, and a temporary storage tube 15 is arranged in the middle of the top end of the base plate 1, and a temporary storage cavity 38 is arranged on the inner side of the temporary storage tube 15, and a piston seat 37 is arranged on the inner side of the temporary storage cavity 38, and a pull-out seat 4 is arranged in the middle of the top end of the temporary storage tube 15, and the bottom end of the pull-out seat 4 passes through the temporary storage tube 15 and is connected to the middle of the piston seat 37, the interior of the bottom ring seat 12 is connected with one end of the connecting pipe 25, and the other end of the connecting pipe 25 passes through the sampling inner tube 30 and is connected with the interior of the temporary storage cavity 38, and a one-way valve 18 is arranged on the connecting pipe 25.

[0053] When the gas sampling mechanism is started, while the sampling mechanism is being deployed, the staff pulls the pull-out seat 4 on the temporary storage tube 15 to move upward, and the pull-out seat 4 drives the piston seat 37 in the temporary storage chamber 38 to move upward synchronously while moving upward, and the piston seat 37 draws the gas in the bottom ring seat 12 through the connecting pipe 2 5 while moving upward, and is affected by the one-way valve 2 16 on the connecting pipe 1 3, so that the gas in the grain around the bottom ring seat 12 enters into the bottom ring seat 12 through the iron mesh plate 36 at the bottom of the bottom ring seat 12, and is transported into the temporary storage chamber 38 of the connecting pipe 2 5 through the connecting pipe 2 5, until the gas in the grain around the bottom ring seat 12 is extracted to a certain amount.

[0054] The gas sampling mechanism also includes a gas detector 2, which is arranged on one side of the middle part of the top of the substrate 1. The gas inlet of the gas detector 2 is connected to one end of a connecting tube 3, and the other end of the connecting tube 3 is connected to the interior of the temporary storage chamber 38. A one-way valve 16 is arranged on the connecting tube 3.

[0055] The staff then presses the pull-out seat 4 on the temporary storage tube 15 to reset it, and the pull-out seat 4 drives the piston seat 37 therein to move downward synchronously. Affected by the one-way valve 16 on the connecting pipe 5, the gas in the temporary storage chamber 38 is squeezed and enters the gas detector 2 through the connecting pipe 3 for detection. After the gas detector 2 completes the detection of the injected gas, the detection result is displayed on the display screen of the gas detector 2, thereby completing the sampling and detection of the gas in the grain at the sampling position.

[0056] Please see attached Fig.10 - Attachment Fig.11 The impurity detection mechanism is arranged on the expanded sampling mechanism and is used to detect and process the metal impurity content in the grain at the sampling position.

[0057] The impurity detection mechanism includes a mounting position 39, and a plurality of mounting positions 39 are arranged in a circular array at a position near the end of the middle and upper part of the inner wall of the outer top tube 7. A magnetic roller 41 is rotatably connected in each mounting position 39, and a plurality of arc scrapers 40 are fixedly connected at equal intervals on the inner side of the magnetic roller 41. A suction cavity 42 is formed between the arc scrapers 40 on adjacent sides and the inner wall of the magnetic roller 41, and a magnetic attraction layer 32 is provided on the outer wall of the deformation portion 13.

[0058] When the staff is taking samples, the sampling depth may be relatively deep sometimes. At this time, when adding the adjusting outer top tube 7 to the adjusting outer bottom tube 14, the inner wall of the adjusting outer top tube 7 in the middle position is not additionally provided with a mounting position 39 and a magnetic roller 41. Only at a position close to the end of the inner wall of the adjusting outer top tube 7 of the top pipe are the mounting positions 39 and the magnetic roller 41 opened and assembled.

[0059] When the impurity detection mechanism is started, while the deformation part 13 on the sampling inner cylinder 30 is deformed and opened due to pressure, the magnetic attraction layer 32 on the deformation part 13 is also opened synchronously and contacts the impurities in the local grain at the designated sampling position, and the metal impurities in the grain at the sampling position are adsorbed by the deformation part 13.

[0060] After the staff completes the sampling operation of the grain at the specified depth and the specified position, the staff will extract the sampling inner cylinder 30 inside the adjusting outer top cylinder 7 and the adjusting outer bottom cylinder 14. While the sampling inner cylinder 30 is being extracted, the metal impurities adsorbed by the magnetic layer 32 on the deformation part 13 also move upward synchronously inside the adjusting outer top cylinder 7 and the adjusting outer bottom cylinder 14. When the metal impurities adsorbed on the magnetic layer 32 move to the top position of the adjusting outer top cylinder 7, the magnetic layer 32 on the outer wall of the deformation part 13 contacts the magnetic roller 41 in the mounting position 39. As the sampling inner cylinder 30 is pulled out, the friction of the outer wall of the sampling inner cylinder 30 synchronously drives the arc scraper 40 on the magnetic roller 41 to rotate synchronously. While being rotated by friction, the arc scraper 40 scrapes off the metal impurities adsorbed on the outer wall of the magnetic attraction layer 32, and collects them in the suction cavity 42 on the magnetic roller 41 through the magnetic attraction effect. The staff can check the content of metal impurities in the grain at the sampling position by rotating the magnetic roller 41 in the installation position 39, thereby completing the detection and processing of metal impurities in the grain at the sampling position.

[0061] 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

1. A food safety detection sampling device, characterized in that: include The base plate (1) is a basic component of the overall device, and the middle parts of both sides of the top are fixedly connected with handles (9) for assembling and carrying various processing mechanisms and their lower structural parts; A sampling adjustment mechanism, which is arranged on one side of the middle portion of the base plate (1) and is used to adjust the sampling device accordingly according to the depth of grain accumulation in the granary; The sampling adjustment mechanism comprises a mounting ring seat (10), wherein the mounting ring seat (10) is arranged on one side of the middle of the base plate (1), an adjusting outer bottom cylinder (14) is arranged inside the mounting ring seat (10), a connecting base (17) is fixedly connected to the top of the inner wall of the adjusting outer bottom cylinder (14), top moving grooves (19) are provided on both sides of the middle of the top of the connecting base (17), a middle moving groove (20) is provided in the middle of the inner side of the connecting base (17), and the middle moving groove (20) is communicated with the inside of the top moving groove (19), and a hole-shaped groove (18) is provided in the middle of the top of the top moving groove (19); The sampling adjustment mechanism further comprises an adjusting outer top cylinder (7), the adjusting outer bottom cylinder (14) is provided with an adjusting outer top cylinder (7) at the top, the middle and lower part of the inner wall of the adjusting outer top cylinder (7) is fixedly connected with a connecting top seat (21), both sides of the middle part of the bottom end of the connecting top seat (21) are fixedly connected with ball head connecting rods (22), and the bottom ends of the ball head connecting rods (22) respectively penetrate the hole-shaped grooves (18) at corresponding positions and enter into the middle movable groove (20); An expansion sampling mechanism is arranged on one side of the bottom end of the base plate (1) and is used to expand and sample the grain at a sampling position deep inside the grain in the granary; The deployment sampling mechanism comprises a slot (11), a plurality of slots (11) are arranged in a circular array in the middle and lower part of the adjusting outer bottom cylinder (14), a sampling inner cylinder (30) is arranged inside the adjusting outer bottom cylinder (14), and the top end of the sampling inner cylinder (30) extends into the adjusting outer top cylinder (7), the sampling inner cylinder (30) is composed of a top closing portion (35), a plurality of deformation portions (13) and a bottom closing portion (34) from top to bottom, the middle parts of the inner walls of the plurality of deformation portions (13) are provided with arc-shaped slots (31), the positions of the deformation portions (13) correspond to the positions of the slots (11), and the bottom end of the bottom closing portion (34) is provided with a plurality of openings (33) in a circular array in the middle part; The deployment sampling mechanism further comprises a pressing seat (6), the top of the adjusting outer top cylinder (7) is provided with a pressing seat (6), the middle part of the bottom end of the adjusting outer bottom cylinder (14) is provided with an opening (28), the middle upper part of the inner side of the opening (28) is fixedly connected with a bottom isolation seat (26), the middle lower part of the inner side of the opening (28) is provided with a matching bottom sealing plate (27), the middle part of the bottom isolation seat (26) is slidably connected with a support rod (24), and the bottom end of the support rod (24) is connected to the middle part of the bottom sealing plate (27), the top end of the support rod (24) is fixedly connected with a perforated plate (23), one side of the top end of the bottom isolation seat (26) is connected to one side of the middle part of the bottom end of the perforated plate (23) via a return spring (29), the top end of the bottom isolation seat (26) is provided with a multi-section sealing sleeve (25), and the top end of the multi-section sealing sleeve (25) is connected to the corresponding position of the perforated plate (23); A gas sampling mechanism, which is arranged on one side of the middle portion of the top of the base plate (1) and is used to sample and detect the gas inside the grain in the granary; The impurity detection mechanism is arranged on the expanded sampling mechanism and is used to detect and process the metal impurity content in the grain at the sampling position.

2. A food safety detection sampling device according to claim 1, characterized in that: The gas sampling mechanism comprises a bottom ring seat (12), the bottom end of the adjusting outer bottom cylinder (14) is fixedly connected to the bottom ring seat (12) near the edge, the inner bottom of the bottom ring seat (12) is provided with an iron mesh plate (36), the top middle of the base plate (1) is provided with a temporary storage cylinder (15), the inner side of the temporary storage cylinder (15) is provided with a temporary storage cavity (38), the inner side of the temporary storage cavity (38) is provided with a piston seat (37), the top middle of the temporary storage cylinder (15) is provided with a pull-out seat (4), and the bottom end of the pull-out seat (4) passes through the temporary storage cylinder (15) and is connected to the middle of the piston seat (37), the interior of the bottom ring seat (12) is communicated with one end of the second connecting pipe (5), the other end of the second connecting pipe (5) passes through the sampling inner cylinder (30) and is communicated with the interior of the temporary storage cavity (38), and the second connecting pipe (5) is provided with a one-way valve (8).

3. A food safety detection sampling device according to claim 2, characterized in that: The gas sampling mechanism further comprises a gas detector (2), wherein the gas detector (2) is arranged on one side of the middle portion of the top end of the substrate (1), the gas inlet of the gas detector (2) is connected to one end of a connecting pipe (3), the other end of the connecting pipe (3) is connected to the interior of the temporary storage chamber (38), and a one-way valve (16) is arranged on the connecting pipe (3).

4. A food safety detection sampling device according to claim 1, characterized in that: The impurity detection mechanism comprises a mounting position (39), a plurality of mounting positions (39) are arranged in a circular array at a position near the end of the middle and upper part of the inner wall of the adjusting outer top cylinder (7), a magnetic roller (41) is rotatably connected to each of the mounting positions (39), a plurality of arc-shaped scrapers (40) are equidistantly fixedly connected to the inner side of the magnetic roller (41), a suction cavity (42) is formed between the arc-shaped scrapers (40) and the inner wall of the magnetic roller (41) on adjacent sides, and a magnetic attraction layer (32) is arranged on the outer wall of the deformation portion (13).

Images