Sampling device for detecting low-salt high-freshness seasoning sauce

Abstract

The invention discloses a sampling device for detecting low-salt high-freshness seasoning sauce, and relates to the technical field of sampling, the sampling device comprises a detachable sampling mechanism, the detachable sampling mechanism comprises a mounting disc, a rotating disc and a sampling column, the rotating disc is rotatably assembled on the mounting disc, the sampling column is eccentrically arranged on the rotating disc in a penetrating mode, and the sampling column has the freedom degree of moving in the axial direction of the rotating disc; a sampling cavity is formed in the bottom of the sampling column in the axial direction of the sampling column, a filtering disc is fixed to the bottom of the sampling column, a plurality of filtering holes are formed in the filtering disc in a circumferential array mode, the filtering holes are formed in the filtering disc in a penetrating mode in the axial direction of the filtering disc, a switching disc is rotationally arranged on the top face of the filtering disc, and a plurality of sampling holes are formed in the switching disc in a circumferential array mode; a negative pressure hose is arranged at one end, far away from the filtering disc, of the sampling column, one end of the negative pressure hose is communicated with the sampling cavity, and the other end of the negative pressure hose is connected with negative pressure equipment, so that samples at different depths can be sampled at multiple positions, and the problems of grease floating and solid particle sedimentation caused by gravity of seasoning sauce are effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of sampling technology, specifically to a sampling device for detecting low-salt, high-umami seasoning sauce. Background Technology

[0002] In the food industry, seasoning sauces, as key ingredients for enhancing food flavor, have their quality, safety, and nutritional stability directly impacting the quality of end products and consumer health. Among these, low-salt, high-umami seasoning sauces, with their health benefits and rich flavor, have seen continuous market demand growth in recent years. Accurate detection of core parameters such as salt content, concentration of umami substances (e.g., disodium glutamate, monosodium glutamate), microbial indicators, and impurity content has become a crucial aspect of quality control and factory inspection during the production process. Sampling, as the first step in the testing process, directly determines the accuracy of subsequent testing data due to the representativeness, purity, and efficiency of the sample. Therefore, high-performance sampling devices are a fundamental and critical piece of equipment for ensuring the quality testing of seasoning sauces. Currently, sampling of low-salt, high-umami seasoning sauces mainly employs traditional manual sampling or simple mechanical sampling methods. In practical applications, these methods have revealed numerous technical shortcomings, making it difficult to meet the requirements of modern testing for accuracy, efficiency, and safety. Firstly, the sample representativeness is insufficient, leading to significant deviations in the test data. Low-salt, high-umami seasoning sauces are mostly viscous colloidal in nature. Traditional sampling devices often use fixed-point sampling, such as sampling from the surface of the can opening or from a single depth, which cannot achieve uniform sampling at different depths and radial positions within the can. Because seasoning sauces are prone to stratification due to gravity during storage (e.g., oils rising and solid particles settling), a single-point sample cannot accurately reflect the true composition of the overall product. This results in significant deviations between subsequent salt and umami substance test results and actual values, potentially leading to misjudgments of qualified products or missed detections of unqualified products. Secondly, it is impossible to screen the sampled components. Since the detection requires a certain amount of liquid or gel, and seasoning sauces contain a large amount of solid seasonings, such as soybeans and peanuts, the current sampling devices cannot remove the fixed seasonings for sampling. This results in the sampling amount not meeting the detection requirements, requiring multiple samplings, which is cumbersome and reduces the detection efficiency. Third, the sampling volume is not adjustable. Low-salt, high-umami seasoning sauce has a high viscosity, and the amount of sample required for the detection of different components varies. The existing device lacks a sampling volume adjustment structure, which makes it impossible to accurately control the sample volume according to the needs of different detection projects. For example, microbial detection requires a small amount of sample, while component analysis requires a large amount of sample, resulting in sample waste or poor repeatability of detection data. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a sampling device for detecting low-salt, high-umami seasoning sauce, thereby addressing the deficiencies of the prior art.

[0004] The objective of this invention is achieved through the following technical solution: a sampling device for detecting low-salt, high-umami seasoning sauce, comprising a detachable sampling mechanism, the detachable sampling mechanism including an installation plate, a rotating plate, and a sampling column. The installation plate is installed on the sampling port of the seasoning jar. The rotating plate is rotatably mounted on the installation plate, the installation plate being concentric with the rotating plate. The sampling column is eccentrically inserted through the rotating plate, the sampling column being parallel to the axis of the rotating plate, and the sampling column having the freedom to move along the axial direction of the rotating plate. A sampling cavity is formed at the bottom of the sampling column along its own axial direction. A filter plate is fixed at the bottom of the sampling column, and a plurality of filter holes are formed in a circumferential array on the filter plate, the filter holes being arranged through the filter plate along its axial direction. A switching plate is rotatably arranged on the top surface of the filter plate, and a plurality of sampling holes are formed in a circumferential array on the switching plate, the plurality of sampling holes corresponding one-to-one with the plurality of filter holes. A negative pressure hose is provided at the end of the sampling column away from the filter plate, one end of the negative pressure hose being connected to the sampling cavity, and the other end being connected to a negative pressure device.

[0005] Furthermore, the diameter of the switching disk is smaller than the diameter of the sampling chamber. Two driving blocks are fixedly spaced along the circumference of the side wall of the switching disk. A traction driving mechanism is provided on the outer wall of the sampling column. The traction driving mechanism includes a driving seat. A first winding shaft and a second winding shaft are rotatably mounted on the driving seat. The rotation direction of the first winding shaft is opposite to that of the second winding shaft. A first pull wire and a second pull wire are wound on the first winding shaft and the second winding shaft, respectively. The first pull wire and the second pull wire are respectively connected to the two driving blocks.

[0006] Furthermore, the first winding shaft and the second winding shaft are respectively connected to a first gear and a second gear, the first gear meshing with the second gear, a drive disk is fixed at the end of the first winding shaft away from the first gear, a lever is fixed on the side wall of the drive disk, the lever is hinged to the telescopic rod of the electric push rod, and the cylinder of the electric push rod is hinged to the drive seat.

[0007] Furthermore, both the first and second pull wires are equipped with a guide ring, which is fixed on the filter plate. Two pull wire paths are provided between the inner and outer walls of the sampling column. One end of the pull wire path is connected to the sampling chamber, and the other end passes through the outer wall of the sampling column. The first pull wire passes through one of the guide rings in sequence, and the pull wire path is wound around the first winding shaft. The second pull wire passes through the other guide ring in sequence, and the pull wire path is wound around the second winding shaft.

[0008] Furthermore, a pressure detection mechanism is provided on the sampling column. The pressure detection mechanism includes a pressure cone, a pressure sensor, and a pressure push rod. The large-diameter end of the pressure cone is located at the bottom of the sampling column. Several strip grooves are formed on the large-diameter end face of the pressure cone. The strip grooves are arranged radially through the pressure cone. The pressure sensor is arranged at the top of the sampling column. A detection cavity is provided between the inner and outer walls of the sampling column. A pressure push rod is movably arranged in the detection cavity. The two ends of the pressure push rod act on the pressure shafts of the pressure cone and the pressure sensor, respectively.

[0009] Furthermore, a hollow pressure ring is fixed to the top of the pressure cone, an annular groove is formed at the bottom of the sampling column, the hollow pressure ring is fitted into the annular groove, sealing rings are fitted to both the outer and inner walls of the hollow pressure ring, the sealing rings are interference-fitted into the annular groove, the detection chamber communicates with the annular groove, the pressure push rod extends into the annular groove and contacts the hollow pressure ring, a stepped hole is formed through the pressure cone along its own axial direction, a through hole is formed through the hollow pressure ring along its own axial direction, the through hole is coaxial with the stepped hole, a threaded hole is formed at the bottom of the pressure push rod, a long screw passes through the stepped hole and is threaded into the through hole, and the end of the pressure push rod away from the hollow pressure ring contacts the pressure shaft of the pressure sensor.

[0010] Furthermore, a sampling adjustment disk is provided inside the sampling chamber. The sampling adjustment disk has the freedom to move along the axial direction of the sampling chamber. A lip seal ring is fitted on the sampling adjustment disk. The outer ring of the lip seal ring forms a sealing surface with the inner wall of the sampling chamber. The size of the sampling chamber between the switching disk and the sampling adjustment disk is adjusted by moving the sampling adjustment disk.

[0011] Furthermore, the top of the sampling column is threaded with an adjusting screw, the top of the sampling adjusting plate is provided with a bearing groove, a bearing is provided in the bearing groove, the outer ring of the bearing is fixed to the sampling adjusting plate, and one end of the adjusting screw is keyed to the inner ring of the bearing.

[0012] Furthermore, the rotary disk is provided with a double-stroke telescopic mechanism, which includes a fixed base plate, a first-stage lifting plate, a second-stage lifting plate, and a third-stage lifting plate. The fixed base plate is vertically fixed on the rotary disk. The first-stage lifting plate is slidably mounted on the fixed base plate. The second-stage lifting plate is slidably mounted on the first-stage lifting plate. The third-stage lifting plate is slidably mounted on the second-stage lifting plate. The top of the third-stage lifting plate is connected to a sampling column.

[0013] Furthermore, both the primary and secondary lifting plates are equipped with belt drive assemblies. Each belt drive assembly includes a first pulley and a second pulley that are rotatably mounted. The first pulley and the second pulley are spaced apart along the extension direction of the double-stroke telescopic mechanism. The first pulley and the second pulley are connected by a drive belt. One side of the drive belt on the primary lifting plate is connected to the fixed base plate via a first connecting block. The other side of the drive belt on the primary lifting plate is connected to the secondary lifting plate via a second connecting block. One side of the drive belt on the secondary lifting plate is connected to the primary lifting plate via a third connecting block. The other side of the drive belt on the secondary lifting plate is connected to the tertiary lifting plate via a fourth connecting block. A lifting electric push rod is installed on the fixed base plate, and the telescopic shaft of the lifting electric push rod is connected to the primary lifting plate.

[0014] The beneficial effects of this invention are: 1. By moving the sampling column to cover different depths of the seasoning container, sampling operations at different depths can be completed. The rotating disk can change the position of the sampling column, thereby allowing samples to be taken from multiple locations at different depths. This effectively avoids the problem of oil floating and solid particles settling due to gravity in seasoning sauces, ensuring that the sample can truly reflect the overall composition of the product in the container. It significantly reduces the deviation between the test results and actual values ​​of salt and umami substances, avoids misjudging qualified products or missing unqualified products, and provides a reliable sample basis for production quality control and factory inspection.

[0015] 2. The filter holes on the filter plate can directly intercept solid particles, allowing only liquids or colloids that meet the detection requirements to enter the sampling chamber, ensuring the purity of the sampled components from the source. The control of the switching plate rotation realizes the opening and closing of the filter holes and sampling holes. When the opening is open, efficient sampling is performed, and when the closing is closed, sample backflow is prevented. The required sample volume can be met without multiple samplings, reducing repetitive operation steps, significantly improving sampling efficiency, and avoiding the risk of sample contamination caused by multiple samplings.

[0016] 3. When the adjusting screw is rotated, the sampling adjustment plate is driven to move smoothly through the bearing transmission. By adjusting the cavity volume between the switching plate and the sampling adjustment plate, the single sampling amount can be directly controlled. The sample amount can be accurately matched according to the test items, which not only avoids sample waste, but also ensures the repeatability and consistency of data in different test scenarios, greatly improving the versatility of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the sampling device for detecting low-salt, high-umami seasoning sauce according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the sampling device for detecting low-salt, high-umami seasoning sauce according to the present invention. Figure 2 ; Figure 3 for Figure 2 Enlarged view at point D; Figure 4 This is a schematic diagram of the internal structure of the sampling column in a sampling device for detecting low-salt, high-umami seasoning sauce according to the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the sampling column in a sampling device for detecting low-salt, high-umami seasoning sauce according to the present invention; Figure 7 for Figure 6 Sectional view along the BB direction; Figure 8 This is a schematic diagram of the sampling device for detecting low-salt, high-umami seasoning sauce according to the present invention. Figure 3 ; Figure 9 for Figure 1 Enlarged view at point C; In the diagram, 1-mounting plate, 2-rotating plate, 3-sampling column, 4-sampling chamber, 5-filter plate, 6-filter hole, 7-switching plate, 8-sampling hole, 9-negative pressure hose, 10-drive block, 11-drive base, 12-first winding shaft, 13-second winding shaft, 14-first pull wire, 15-second pull wire, 16-first gear, 17-second gear, 18-drive plate, 19-sampling bottle, 20-lever, 21-electric push rod, 22-guide ring, 23-pull wire path, 24-pressure cone, 25-pressure sensor, 26-pressure push rod, 27-strip groove, 28-detection chamber, 29-hollow pressure ring, 30-annular groove, 31-sealing ring, 32- 33-Stepped hole, 34-Through hole, 35-Threaded hole, 36-Long screw, 37-Sampling adjustment plate, 38-Lip seal ring, 39-Adjusting screw, 40-Bearing groove, 41-Bearing, 42-Fixed base plate, 43-First-stage lifting plate, 44-Second-stage lifting plate, 45-First pulley, 46-Second pulley, 47-Drive belt, 48-First connecting block, 49-Fourth connecting block, 50-Lifting electric push rod, 51-Second connecting block, 52-Third connecting block, 53-Threaded cap, 54-Hose, 55-Locking ratchet, 56-Locking shaft, 57-Locking pawl, 58-Pawl spring, 59-Pawl spring, 60-Pressing nut. Detailed Implementation

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0019] Example 1 like Figures 1 to 9As shown, a sampling device for detecting low-salt, high-umami seasoning sauce includes a detachable sampling mechanism. The detachable sampling mechanism includes a mounting plate 1, a rotating plate 2, and a sampling column 3. The mounting plate 1 is installed on the sampling port of the seasoning jar. The rotating plate 2 is rotatably mounted on the mounting plate 1, and the mounting plate 1 is concentric with the rotating plate 2. The sampling column 3 is eccentrically inserted through the rotating plate 2, parallel to the axis of the rotating plate 2, and has the freedom to move along the axial direction of the rotating plate 2. A sampling cavity 4 is formed at the bottom of the sampling column 3 along its own axial direction. A filter plate 5 is fixed at the bottom of the sampling column 3, and a plurality of filter holes 6 are formed in a circumferential array on the filter plate 5, penetrating along the axial direction of the filter plate 5. A switching plate 7 is rotatably mounted on the top surface of the filter plate 5, and a plurality of filter holes 6 are formed in a circumferential array on the switching plate 7. The sampling holes 8 correspond one-to-one with the filter holes 6. A negative pressure hose 9 is installed at the end of the sampling column 3 furthest from the filter plate 5. One end of the negative pressure hose 9 connects to the sampling chamber 4, and the other end connects to the negative pressure equipment. During the production and fermentation process of the low-salt, high-umami seasoning sauce, regular testing is required to detect salt content, umami concentration, and microbial indicators, thereby precisely controlling the quality of the sauce. Sampling ports are installed on the top of each seasoning tank. An installation flange is fixedly fitted onto the mounting plate 1, connecting to the flange on the sampling port, thus allowing the detachable sampling mechanism to be installed on the seasoning tank for sampling operations. Sampling operations at different depths are completed from top to bottom through the sampling column 3. Specifically, before sampling, the sampling holes 8 of the switching plate 7 are connected to the filter... The filter holes 6 of the sampling disc 5 are staggered. The switching disc 7 blocks the filter holes 6, preventing the seasoning sauce from entering the sampling chamber 4. The sampling column 3 moves downwards. When it reaches the designated position, the switching disc 7 deflects, connecting the sampling hole 8 with the filter holes 6, allowing the seasoning sauce sample to enter the sampling chamber 4. The filtering effect of the filter holes 6 prevents solid seasonings from entering the sampling chamber 4, allowing only liquids or colloids that meet the testing requirements to enter, ensuring the purity of the sampled components from the source. Then, the switching disc 7 rotates back, sealing the filter holes 6. A negative pressure device then transfers the sample from the sampling chamber 4 to the sample bottle, completing the single sampling and leaving the sampling chamber 4 empty. The sampling column 3 then moves downwards again to adjust the sampling depth, and this process is repeated until the desired depth is reached. Sampling at different depths effectively avoids the problems of oil floating and solid particles settling due to gravity in seasoning sauces, ensuring that the samples can truly reflect the overall composition of the product in the can. This significantly reduces the deviation between the test results and actual values ​​of salt and umami substances, avoiding misjudgment of qualified products or missed detection of unqualified products, and providing a reliable sample basis for production quality control and factory inspection. Secondly, since the sampling column 3 is eccentrically mounted on the rotating disk 2, the deflection of the rotating disk 2 can change the position of the sampling column 3, thereby adjusting the radial position of the sampling column 3 in the seasoning can. This allows for the study of the component content of the seasoning sauce at different positions at the same depth to determine whether the seasoning sauce is evenly stirred. At the same time, it can also obtain samples at more positions and different depths, which can more accurately reflect the quality of the seasoning sauce.Most seasoning containers are equipped with a stirring mechanism. When the stirring mechanism stops, the position of the blades is uncontrollable. This causes the movement of the sampling column 3 to be blocked by the blades after the detachable sampling mechanism is installed. At this time, the deflecting disc 2 changes the position of the sampling column 3 to avoid the sampling column 3 being blocked by the stirring blades, so that the sampling operation can be completed smoothly. After the sampling is completed, the detachable sampling mechanism is removed, the plug is reinstalled on the sampling tube port, and the detachable sampling mechanism is cleaned, ready for the next sampling operation or for sampling other samples.

[0020] Example 2 Based on Example 1, such as Figure 1 and Figure 2 As shown, the negative pressure device includes a sampling bottle 19, a threaded cap 53, and a negative pressure pump. The sampling bottle 19 has an external thread at its mouth, and the threaded cap 53 is threaded onto the mouth of the sampling bottle 19. A negative pressure hose 9 is connected to the threaded cap 53, and the negative pressure pump is connected to the threaded cap 53 via a hose 54. A solenoid valve is installed on the negative pressure hose 9. Before sampling, the solenoid valve is in the open position. The sampling bottle 19 is installed on the threaded cap 53, and the negative pressure pump evacuates the sampling bottle 19 and the sampling chamber 4. Then, the solenoid valve is closed, and the negative pressure pump stops working. During sampling, under the action of negative pressure, the sample enters the sampling chamber 4 to achieve quantitative sampling. Then, the switching disc 7 blocks the filter hole 6, and the solenoid valve is opened. Under the vacuum action of the sampling bottle 19, the sample in the sampling chamber 4 enters the sampling bottle 19, achieving long-distance sampling while also emptying the sampling chamber 4. Then, the sampling bottle 19 is replaced, and the above method is repeated to sample samples at different depths.

[0021] Example 3 Based on Example 2, such as Figures 1 to 5As shown, a sampling adjustment disk 36 is provided inside the sampling chamber 4. The sampling adjustment disk 36 has the freedom to move along the axial direction of the sampling chamber 4. A lip seal 37 is fitted on the sampling adjustment disk 36. The outer ring of the lip seal 37 forms a sealing surface with the inner wall of the sampling chamber 4. The size of the sampling chamber between the switching disk 7 and the sampling adjustment disk 36 is adjusted by moving the sampling adjustment disk 36. An adjusting screw 38 is threaded to the top of the sampling column 3. A bearing groove 39 is provided on the top of the sampling adjustment disk 36. A bearing 40 is provided in the bearing groove 39. The outer ring of the bearing 40 is fixed to the sampling adjustment disk 36. One end of the adjusting screw 38 is keyed to the inner ring of the bearing 40. The negative pressure hose 9 passes through the sampling adjusting plate 36 and connects to the sampling chamber 4, allowing the negative pressure hose 9 to move with the sampling adjusting plate 36. Before installing the detachable sampling mechanism, the size of the sampling chamber 4 is adjusted according to the required sample volume. Specifically, the adjusting screw 38 is manually rotated to make it rotate. Through the setting of the bearing 40, the sampling adjusting plate 36 and the adjusting screw 38 have rotational freedom, allowing the adjusting screw 38 to drive the sampling adjusting plate 36 to move up and down, thereby adjusting the size of the sampling chamber 4. The lip seal 37 ensures that the sampling adjusting plate 36 moves while maintaining a good seal, making the sampling volume more accurate.

[0022] Example 4 Because sampling at different depths is required, the length of the sampling column 3 is generally longer than the axial length of the seasoning container. Therefore, it is very difficult to move the sampling column 3 manually, and the extension range of power sources such as cylinders is insufficient to meet the moving length of the sampling column 3. Therefore, based on Example 3, as follows... Figures 1 to 3As shown, a double-stroke telescopic mechanism is provided on the rotating disk 2. The double-stroke telescopic mechanism includes a fixed base plate 41, a first-stage lifting plate 42, a second-stage lifting plate 43, and a third-stage lifting plate 44. The fixed base plate 41 is vertically fixed on the rotating disk 2. The first-stage lifting plate 42 is slidably mounted on the fixed base plate 41. The second-stage lifting plate 43 is slidably mounted on the first-stage lifting plate 42. The third-stage lifting plate 44 is slidably mounted on the second-stage lifting plate 43. The top of the third-stage lifting plate 44 is connected to the sampling column 3. Both the first-stage lifting plate 42 and the second-stage lifting plate 43 are provided with belt drive assemblies. The belt drive assemblies include a first pulley 45 and a second pulley 46 that are rotatably mounted. The first pulley 45 and the second pulley 46 are spaced apart along the telescopic direction of the double-stroke telescopic mechanism. The pulley 46 is connected via a drive belt 47. One side of the drive belt 47 on the first-stage lifting plate 42 is connected to the fixed base plate 41 via a first connecting block 48. The other side of the drive belt 47 on the first-stage lifting plate 42 is connected to the second-stage lifting plate 43 via a second connecting block 51. One side of the drive belt 47 on the second-stage lifting plate 43 is connected to the first-stage lifting plate 42 via a third connecting block 52. The other side of the drive belt 47 on the second-stage lifting plate 43 is connected to the third-stage lifting plate 44 via a fourth connecting block 49. A lifting electric push rod 50 is installed on the fixed base plate 41. The telescopic shaft of the lifting electric push rod 50 is connected to the first-stage lifting plate 42. A detachable plate is connected to the top of the third-stage lifting plate 44 via screws. The detachable plate is connected to the sampling column 3 via screws. Both ends of the bottom are fixed with wing plates, which are connected to the rotating disk 2 by screws, so that the double-stroke telescopic mechanism and the sampling column 3 are detachably installed on the rotating disk 2. During installation, first install the mounting plate 1 on the sampling tube port, then install the double-stroke telescopic mechanism on the rotating disk 2, and finally pass the sampling column 3 through the rotating disk 2 and connect it to the three-stage lifting plate 44. The assembly of the detachable sampling mechanism is then installed. The specific movement process of the sampling column 3 is as follows: the lifting electric push rod 50 drives the first-stage lifting plate 42 to move upward, and the first-stage lifting plate 42 drives the belt drive assembly on it to move. Since the drive belt 47 is connected to the fixed base plate 41 through the first connecting block 48, the fixed base plate 41 does not move with the first-stage lifting plate 42, thereby causing the first connecting block 48 to pull the drive belt. As belt 47 moves, and since the two sides of the drive belt 47 move in opposite directions, when the first-stage lifting plate 42 moves upward, the first connecting block 48 pulls one side of the drive belt 47 downward, causing the other side of the drive belt 47 to drive the second-stage lifting plate 43 upward via the second connecting block 51. This causes the second-stage lifting plate 43 to extend beyond the first-stage lifting plate 42. Similarly, when the second-stage lifting plate 43 extends from the first-stage lifting plate 42, it drives the belt drive assembly on it to move, causing one side of the drive belt 47 to move downward under the action of the third connecting block 52. This, in turn, causes the other side of the drive belt 47 to be pulled by the fourth connecting block 49, driving the third-stage lifting plate 44 upward, thus forming a three-stage telescopic movement and expanding the telescopic stroke of the lifting electric push rod 50.To meet the sampling needs of the seasoning container, initially, the double-stroke telescopic mechanism is in the extended state, ensuring that the sampling column 3 has not yet entered the seasoning container. After the detachable sampling mechanism is installed, the double-stroke telescopic mechanism moves the sampling column 3 downwards, allowing the sampling column 3 to sequentially complete sampling operations at various depths.

[0023] Example 5 Based on Example 4, such as Figures 1 to 7 As shown, the diameter of the switching disk 7 is smaller than the diameter of the sampling chamber 4. Two drive blocks 10 are fixed at intervals along the circumference of the side wall of the switching disk 7. A traction drive mechanism is provided on the outer wall of the sampling column 3. The traction drive mechanism includes a drive seat 11, on which a first winding shaft 12 and a second winding shaft 13 are rotatably mounted. The rotation direction of the first winding shaft 12 is opposite to that of the second winding shaft 13. A first pull wire 14 and a second pull wire 15 are wound on the first winding shaft 12 and the second winding shaft 13, respectively. The first pull wire 14 and the second pull wire 15 are separated. Two drive blocks 10 are connected. A first gear 16 and a second gear 17 are respectively connected to the first winding shaft 12 and the second winding shaft 13. The first gear 16 meshes with the second gear 17. A drive disk 18 is fixed to the end of the first winding shaft 12 away from the first gear 16. A lever 20 is fixed to the side wall of the drive disk 18. The lever 20 is hinged to the telescopic rod of the electric push rod 21. The cylinder of the electric push rod 21 is hinged to the drive seat 11. The extension and retraction of the electric push rod 21 drives the lever 20 to deflect. The lever 20 drives the first winding shaft 12 to deflect through the drive disk 18. The first winding shaft 12 drives the second winding shaft 13 to deflect through the meshing of the first gear 16 and the second gear 17. The deflection direction of the first winding shaft 12 is opposite to that of the second winding shaft 13, so that when the first winding shaft 12 winds up the first pull wire 14, the second winding shaft 13 releases the second pull wire 15. Initially, the switching disk 7 blocks the filter hole 6. When sampling is required, the electric push rod 21 extends and drives the first winding shaft 12 to wind up the first pull wire 14, causing the first pull wire 14 to pull the switching disk 7 to deflect. At the same time, the second winding shaft 13 releases the second pull wire 15 appropriately. The deflection of the switching disk 7 causes the sampling hole 8 of the switching disk 7 to connect with the filter hole 6, thus completing the sampling of the seasoning sauce sample. After the sampling is completed, the electric push rod 21 retracts and resets, causing the second winding shaft 13 to wind the second pull wire 15. At the same time, the first winding shaft 12 rotates in the opposite direction to release the first pull wire 14, so that the switching disk 7 can be smoothly rotated and reset to re-seal the filter hole 6. Through the drive method of the pull wire, the switching disk 7 can be driven to rotate in a narrow space without occupying the internal space of the sampling chamber 4, and the direct installation of the drive device is avoided to prevent sample contamination.

[0024] Furthermore, both the first pull wire 14 and the second pull wire 15 are equipped with a guide ring 22, which is fixed on the filter plate 5. Two pull wire paths 23 are provided between the inner and outer walls of the sampling column 3. One end of the pull wire path 23 is connected to the sampling chamber 4, and the other end passes through the outer wall of the sampling column 3. The first pull wire 14 passes through one of the guide rings 22 and the pull wire path 23 in sequence and is wound around the first winding shaft 12. The second pull wire 15 passes through the other guide ring 22 and the pull wire path 23 in sequence and is wound around the second winding shaft 13. The guide ring 22 guides the arrangement direction of the first pull wire 14 and the second pull wire 15 so that the first pull wire 14 or the second pull wire 15 can smoothly pull the switching plate 7 to deflect. In specific implementation, two wiring paths are provided on the sampling column 3. The first pull wire 14 and the second pull wire 15 are wired through the two wiring paths respectively. An O-ring is provided at the end of the wiring path near the sampling chamber 4 to seal and prevent the sample from entering the wiring path.

[0025] Example 6 Based on Example 5, such as Figures 1 to 5 As shown, a pressure detection mechanism is provided on the sampling column 3. The pressure detection mechanism includes a pressure cone 24, a pressure sensor 25, and a pressure push rod 26. The large-diameter end of the pressure cone 24 is located at the bottom of the sampling column 3. Several strip grooves 27 are formed on the large-diameter end face of the pressure cone 24. The strip grooves 27 are arranged radially through the pressure cone 24, allowing the sample to enter the filter pore 6 through the strip grooves 27. The pressure sensor 25 is arranged at the top of the sampling column 3. A detection cavity 28 is provided between the inner and outer walls of the sampling column 3. The pressure push rod 26 is movably arranged in the detection cavity 28. The two ends of the pressure push rod 26 act on the pressure axis of the pressure cone 24 and the pressure sensor 25, respectively. The sampling column 3 moves downward. When sampling is performed, if the pressure cone 24 is blocked by the blade, the sampling column 3 cannot continue to move downward. At this time, the pressure cone 24 transmits the squeezing force to the pressure sensor 25 through the pressure push rod 26. When the pressure of the pressure sensor 25 reaches the set value, it indicates that the sampling column 3 is blocked by the blade. The double stroke telescopic mechanism drives the sampling column 3 to move upward and disengage from the blade. Then, the rotating disk 2 drives the sampling column 3 to deflect, changing the position of the sampling column 3 to continue sampling. When the sampling column 3 can move downward smoothly, the adjustment is completed. This avoids the influence of the blade of the stirring mechanism on the detachable sampling mechanism, and can successfully complete the sampling operation while avoiding damage to the blade and the detachable sampling mechanism.

[0026] Furthermore, a hollow pressure ring 29 is fixed to the top of the pressure cone 24, and an annular groove 30 is provided at the bottom of the sampling column 3. The hollow pressure ring 29 is fitted into the annular groove 30. Both the outer and inner walls of the hollow pressure ring 29 are fitted with sealing rings 31, which are interference-fitted into the annular groove 30. The detection chamber 28 is connected to the annular groove 30. The pressure push rod 26 extends into the annular groove 30 and contacts the hollow pressure ring 29. A stepped hole 32 is provided through the pressure cone 24 along its own axial direction. A through hole 33 is provided through the hollow pressure ring 29 along its own axial direction. The through hole 33 is coaxial with the stepped hole 32. A threaded hole 34 is provided at the bottom of the pressure push rod 26. A long screw 35 passes through the stepped hole 32 and is threaded into the through hole 33 and connected to the threaded hole 34. The end of the pressure push rod 26 away from the hollow pressure ring 29 is connected to... First, install the pressure sensor 25 on top of the sampling column 3, allowing the pressure shaft of the pressure sensor 25 to pass into the detection chamber 28. Then, install the pressure push rod 26 into the detection chamber 28 through the annular groove 30. Next, install the hollow pressure ring 29 of the pressure cone 24 into the annular groove 30. After the hollow pressure ring 29 is installed, there is a certain gap between the pressure cone 24 and the sampling column 3, allowing the extrusion pressure to be transmitted to the pressure shaft of the pressure sensor 25. Finally, connect the pressure cone 24 and the pressure push rod 26 together with a long screw 35. This facilitates installation while ensuring that the extrusion pressure on the pressure cone 24 is smoothly transmitted to the pressure sensor 25. The sealing ring 31 also provides a good seal for the annular groove 30, preventing the sample from entering.

[0027] Example 7 Based on Example 6, such as Figures 1 to 9As shown, the rotating disk 2 is rotatably mounted on the mounting disk 1 via ball bearings. Two sets of locking and positioning mechanisms are provided between the mounting disk 1 and the rotating disk 2. Each locking and positioning mechanism includes a locking ratchet 55, a locking shaft 56, a locking pawl 57, and a pawl spring 58. The locking ratchet 55 is fitted onto the rotating disk 2, the locking shaft 56 is vertically mounted on the mounting disk 1, the locking pawl 57 is movably fitted onto the locking shaft 56, and a pawl spring 59 is fitted onto the locking shaft 56. The two ends of the pawl spring 59 are respectively connected to the locking pawl 57 and the mounting disk 1, and the pawl spring 58 is fixed. On mounting plate 1, the pawl spring 58 contacts the outer arc surface of the locking pawl 57. A pressing nut 60 is threaded onto the locking shaft 56. The pressing nut 60 presses down on the locking pawl 57, compressing the pawl spring 59. Under the action of the pawl spring 58, the locking pawl 57 is fitted into the ratchet groove of the locking ratchet wheel 55. Two sets of locking positioning mechanisms are installed in opposite directions; one set restricts the forward rotational freedom of the rotating plate 2, and the other set restricts the reverse rotational freedom of the rotating plate 2. A manual lever is fixed to the side wall of the rotating plate 2. After the detachable sampling mechanism is installed, a trial run is performed, which involves moving the sampling column 3 downwards to determine if the blades obstruct it. When the sampling column 3 is obstructed, any locking and positioning mechanism is adjusted to unlock the rotational freedom of the rotating disk 2 in one direction. The specific adjustment process is as follows: unscrew the pressing nut 60 upwards, causing the locking pawl 57 to move upwards under the reaction force of the pawl spring 59, separating the locking pawl 57 from the locking ratchet 55. This allows the rotating disk 2 to rotate around the direction defined by the locking and positioning mechanism, thereby deflecting the rotating disk 2 and changing the sampling column 3. Positioning the sampling column 3 to avoid the blades, when the sampling column 3 can move smoothly downwards, it indicates that the position of the sampling column 3 meets the sampling requirements. Rotate the pressing nut 60 downwards, so that the pressing nut 60 drives the locking pawl 57 to move back into the ratchet groove of the locking ratchet 55. Through the combined action of the two sets of locking and positioning mechanisms, the rotational freedom of the rotating disk 2 is restricted, ensuring the positional stability of the sampling column 3 and avoiding the problem of squeezing and deflection during the sampling process. This ensures that samples at different depths at the same position are on the same axis, thereby accurately detecting whether the seasoning sauce is stirred evenly.

Claims

1. A sampling device for detecting low-salt, high-umami seasoning sauce, characterized in that, The system includes a detachable sampling mechanism comprising a mounting plate (1), a rotating plate (2), and a sampling column (3). The mounting plate (1) is installed on the sampling port of the seasoning jar. The rotating plate (2) is rotatably mounted on the mounting plate (1), and the mounting plate (1) is concentric with the rotating plate (2). The sampling column (3) is eccentrically mounted on the rotating plate (2) and is parallel to the axis of the rotating plate (2). The sampling column (3) has a degree of freedom to move along the axial direction of the rotating plate (2). A sampling cavity (4) is formed at the bottom of the sampling column (3) along its own axial direction. A filter plate (5) is fixed at the bottom of the sampling column (3). A number of filter holes (6) are arranged in a circular array on the filter plate (5). The filter holes (6) are arranged through the filter plate (5) along the axial direction. A switching plate (7) is rotatably arranged on the top surface of the filter plate (5). A number of sampling holes (8) are arranged in a circular array on the switching plate (7). The number of sampling holes (8) corresponds one-to-one with the number of filter holes (6). A negative pressure hose (9) is provided at one end of the sampling column (3) away from the filter plate (5). One end of the negative pressure hose (9) is connected to the sampling chamber (4), and the other end is connected to the negative pressure device.

2. The sampling device for detecting low-salt, high-umami seasoning sauce according to claim 1, characterized in that, The diameter of the switching disk (7) is smaller than the diameter of the sampling chamber (4). Two drive blocks (10) are fixed at intervals along the circumference of the side wall of the switching disk (7). The outer wall of the sampling column (3) is provided with a traction drive mechanism. The traction drive mechanism includes a drive seat (11). A first winding shaft (12) and a second winding shaft (13) are rotatably arranged on the drive seat (11). The rotation direction of the first winding shaft (12) is opposite to that of the second winding shaft (13). A first pull wire (14) and a second pull wire (15) are wound on the first winding shaft (12) and the second winding shaft (13), respectively. The first pull wire (14) and the second pull wire (15) are respectively connected to the two drive blocks (10).

3. The sampling device for detecting low-salt, high-umami seasoning sauce according to claim 2, characterized in that, The first winding shaft (12) and the second winding shaft (13) are respectively connected to a first gear (16) and a second gear (17). The first gear (16) meshes with the second gear (17). A drive disk (18) is fixed at one end of the first winding shaft (12) away from the first gear (16). A lever (20) is fixed on the side wall of the drive disk (18). The lever (20) is hinged to the telescopic rod of the electric push rod (21). The cylinder of the electric push rod (21) is hinged to the drive seat (11).

4. The sampling device for detecting low-salt, high-umami seasoning sauce according to claim 3, characterized in that, Both the first pull wire (14) and the second pull wire (15) are equipped with a guide ring (22). The guide ring (22) is fixed on the filter plate (5). There are two pull wire paths (23) between the inner wall and the outer wall of the sampling column (3). One end of the pull wire path (23) is connected to the sampling chamber (4), and the other end passes through the outer wall of the sampling column (3). The first pull wire (14) passes through one of the guide rings (22) and the pull wire path (23) in sequence and is wound on the first winding shaft (12). The second pull wire (15) passes through the other guide ring (22) and the pull wire path (23) in sequence and is wound on the second winding shaft (13).

5. The sampling device for detecting low-salt, high-umami seasoning sauce according to claim 1, characterized in that, The sampling column (3) is provided with a pressure detection mechanism, which includes a pressure cone (24), a pressure sensor (25) and a pressure push rod (26). The large-diameter end of the pressure cone (24) is located at the bottom of the sampling column (3). Several strip grooves (27) are opened on the large-diameter end face of the pressure cone (24). The strip grooves (27) are arranged to penetrate along the radial direction of the pressure cone (24). The pressure sensor (25) is arranged at the top of the sampling column (3). A detection cavity (28) is provided between the inner wall and the outer wall of the sampling column (3). The pressure push rod (26) is movably arranged in the detection cavity (28). The two ends of the pressure push rod (26) act on the pressure shaft of the pressure cone (24) and the pressure sensor (25) respectively.

6. The sampling device for detecting low-salt, high-umami seasoning sauce according to claim 5, characterized in that, A hollow pressure ring (29) is fixed to the top of the pressure cone (24), and an annular groove (30) is provided at the bottom of the sampling column (3). The hollow pressure ring (29) is fitted into the annular groove (30). Both the outer and inner walls of the hollow pressure ring (29) are fitted with sealing rings (31), which are interference-fitted into the annular groove (30). The detection chamber (28) is connected to the annular groove (30), and the pressure push rod (26) extends into the annular groove (30) to contact the hollow pressure ring (29). The pressure cone (24) has a stepped hole (32) through it along its own axis, and the hollow pressure ring (29) has a through hole (33) through it along its own axis. The through hole (33) is coaxial with the stepped hole (32). The bottom of the pressure push rod (26) has a threaded hole (34). The long screw (35) passes through the stepped hole (32) and is threaded to the through hole (33) in the threaded hole (34). The end of the pressure push rod (26) away from the hollow pressure ring (29) contacts the pressure shaft of the pressure sensor (25).

7. The sampling device for detecting low-salt, high-umami seasoning sauce according to claim 1, characterized in that, The sampling chamber (4) is provided with a sampling adjustment plate (36), which has the freedom to move along the axial direction of the sampling chamber (4). A lip seal (37) is fitted on the sampling adjustment plate (36). The outer ring of the lip seal (37) forms a sealing surface with the inner wall of the sampling chamber (4). The size of the sampling chamber between the switching plate (7) and the sampling adjustment plate (36) is adjusted by moving the sampling adjustment plate (36).

8. The sampling device for detecting low-salt, high-umami seasoning sauce according to claim 7, characterized in that, The top of the sampling column (3) is threaded with an adjusting screw (38), and the top of the sampling adjusting plate (36) is provided with a bearing groove (39). A bearing (40) is provided in the bearing groove (39), and the outer ring of the bearing (40) is fixed to the sampling adjusting plate (36). One end of the adjusting screw (38) is keyed to the inner ring of the bearing (40).

9. The sampling device for detecting low-salt, high-umami seasoning sauce according to claim 1, characterized in that, The rotating disk (2) is provided with a double stroke telescopic mechanism, which includes a fixed base plate (41), a first-stage lifting plate (42), a second-stage lifting plate (43), and a third-stage lifting plate (44). The fixed base plate (41) is vertically fixed on the rotating disk (2). The first-stage lifting plate (42) is slidably mounted on the fixed base plate (41). The second-stage lifting plate (43) is slidably mounted on the first-stage lifting plate (42). The third-stage lifting plate (44) is slidably mounted on the second-stage lifting plate (43). The top of the third-stage lifting plate (44) is connected to the sampling column (3).

10. A sampling device for detecting low-salt, high-umami seasoning sauce according to claim 9, characterized in that, Both the primary lifting plate (42) and the secondary lifting plate (43) are equipped with belt drive assemblies. The belt drive assembly includes a first pulley (45) and a second pulley (46) that are rotatably mounted. The first pulley (45) and the second pulley (46) are spaced apart along the extension direction of the double-stroke telescopic mechanism. The first pulley (45) and the second pulley (46) are connected by a drive belt (47). One side of the drive belt (47) on the primary lifting plate (42) is connected to the fixed base plate (41) through a first connecting block (48). The other side of the drive belt (47) on the plate (42) is connected to the secondary lifting plate (43) via the second connecting block (51). One side of the drive belt (47) on the secondary lifting plate (43) is connected to the primary lifting plate (42) via the third connecting block (52). The other side of the drive belt (47) on the secondary lifting plate (43) is connected to the tertiary lifting plate (44) via the fourth connecting block (49). A lifting electric push rod (50) is installed on the fixed base plate (41). The telescopic shaft of the lifting electric push rod (50) is connected to the primary lifting plate (42).

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