Food microorganism detection anti-pollution sampling device

Abstract

The utility model relates to food microbiological detection technical field especially discloses food microbiological detection anti -pollution sampling device, including sampler, the support is fixedly installed on the sampler, the inner chamber is seted up in sampler side wall, the arc -shaped groove that communicates with the inner chamber is seted up on its upper end part, the motor mounting bracket is fixedly installed to the symmetry of sampler upper end part, the drive motor is fixedly installed between two motor mounting brackets, the pivot is installed to drive motor output, the gear is fixedly covered to the pivot and equidistance fixed mounting has the cleaning vane, the partition is fixedly installed to the symmetry in sampler inside, the annular sealing washer is fixedly installed in two partition, the automatic switch of sealing strip can be realized through the drive motor drive of this equipment, the stratified sampling of liquid is completed, the cleaning vane can be driven by drive motor to carry out efficient cleaning to sampling containing cavity, effectively avoid the pollution of last sampling sample to next sampling, guarantee sampling detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of food microbial detection technology, and in particular to a food microbial detection anti-contamination sampling device. Background Technology

[0002] Food microbiological testing is a testing method that uses the theories and methods of microbiology to examine the types, quantities, properties, and effects on human health of microorganisms in food in order to determine whether the food meets quality standards.

[0003] However, when controlling sampling in the middle of a dairy production line, it is necessary to accurately obtain milk samples at different depths to monitor the fermentation process. Most sampling devices are difficult to achieve stable stratified sampling. Manual plug-in sampling port switches require staff to repeatedly insert their hands into the production equipment to operate, which not only breaks the rhythm of the high-speed production line, but also exposes the sampling port to the workshop air for a long time during the operation, making it easy to introduce bacteria to contaminate the sample. Even if some devices have a simple sealing structure, after sampling milk with a high fat content, the sampling port is prone to residual viscous material, resulting in poor sealing. This may cause sample leakage and contaminate the production line, and may also cause cross-contamination in subsequent sampling. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a food microbial detection and anti-contamination sampling device, which solves the technical problems of needing to accurately sample milk at different depths during centralized sampling in dairy production lines, the difficulty of stratification in existing devices, the cumbersome manual operation, the susceptibility to bacterial contamination, and the leakage and cross-contamination caused by poor sealing.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A food microbiology testing and contamination prevention sampling device includes a sampler with a fixed bracket. The sampler has an inner cavity on its side wall, with an arc-shaped groove at its upper end communicating with the inner cavity. Motor mounting brackets are symmetrically fixed to the upper end of the sampler, and a drive motor is fixedly installed between the two brackets. A rotating shaft is installed at the output end of the drive motor, with gears fixedly fitted on the shaft and cleaning blades fixedly installed at equal intervals. Separators are symmetrically fixed inside the sampler, and annular sealing gaskets are fixedly installed in each of the two separators. The rotating shaft is rotatably mounted within the two annular sealing gaskets. A sealing strip is slidably installed in the arc-shaped groove, with teeth on its side wall that mesh with the gears, enabling liquid stratification sampling. The drive controls the sealing strip's opening and closing to reduce contamination, and the cleaning blades remove residue, ensuring the accuracy and reliability of the sampling and testing.

[0007] Preferred design: Sealing gaskets are fixedly installed on the side walls of both partitions to enhance the sealing between the partitions, prevent the samples from different cavities from seeping and mixing, ensure the accuracy of stratified sampling, and further reduce the risk of cross-contamination.

[0008] Preferably, two sets of side rods are symmetrically fixedly installed on the side wall of the sampler. Both sets of side rods are provided with inner grooves and limiting grooves to provide a sliding base for the inner rods and sliding columns. The structural adaptation reserves space for adjusting the support height, thereby improving the flexibility and applicability of the sampling operation.

[0009] Preferably, both sets of inner grooves and limiting grooves are slidably installed with inner rods and sliding columns. The inner rods and sliding columns are fixedly connected and adapted to slide with the side rod grooves to realize the extension and retraction adjustment of the support length. This provides structural protection for the device to adapt to different sampling depths and improves the ease of operation.

[0010] Preferably, both sets of sliding columns are threaded with threaded rings for positioning the sliding columns. The threaded rings fit against the outer wall of the side rod, and the position of the sliding column is locked by thread fastening, ensuring that the support height is stable after adjustment, avoiding shaking of the device during sampling, and ensuring the stability of the sampling process.

[0011] Preferably, the ends of the two sets of inner rods away from the side rods are fixedly installed with a base. The base is set parallel to the sampler, providing a stable support foundation for the device and preventing it from tipping over during sampling. The parallel setting ensures a stable sampling angle and improves operational safety and reliability.

[0012] Preferred configuration: Shrinkage strips are symmetrically fixedly installed in the inner wall of the arc-shaped groove. The movable ends of the two shrinkage strips are fixedly connected to the sealing strip, which assists in the resetting and sealing of the sealing strip, enhances its fit with the arc-shaped groove, reduces the sealing gap of the sampling port, and further reduces the risk of sample leakage and contamination.

[0013] Preferably, two shrink strips are symmetrically distributed on both sides of the sealing strip, and the expansion and contraction direction of the shrink strips is consistent with the sliding direction of the sealing strip. This ensures that the shrink strips exert a balanced force on the sealing strip, guaranteeing smooth sliding and resetting, ensuring stable sealing effect, and improving the reliability of the device operation.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This equipment can automatically open and close the sealing strip by driving the drive motor to complete the stratified sampling of liquid. At the same time, the drive motor can drive the cleaning blades to efficiently clean the sampling chamber, effectively avoiding the contamination of the previous sample by the next sample and ensuring the accuracy of sampling and testing. Attached Figure Description

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is an exploded structural diagram of the base connection of this utility model;

[0019] Figure 3 This is an exploded view of the sealing strip connection of this utility model;

[0020] Figure 4 This is an exploded structural diagram of the cleaning blade connection of this utility model.

[0021] Legend: 1. Sampler; 2. Support; 3. Inner cavity; 4. Arc groove; 5. Motor mounting bracket; 6. Drive motor; 7. Shaft; 8. Gear; 9. Cleaning blade; 10. Divider plate; 11. Sealing gasket; 12. Annular sealing gasket; 13. Sealing strip; 14. Teeth; 15. Side rod; 16. Inner groove; 17. Limiting groove; 18. Inner rod; 19. Sliding column; 20. Threaded ring; 21. Base; 22. Shrink strip. Detailed Implementation

[0022] This application provides a food microbial detection and anti-contamination sampling device, which effectively solves the problem of accurately sampling milk at different depths in the central control sampling of dairy production lines. Existing devices are difficult to separate into layers, manual operation is cumbersome and prone to bacterial contamination, and poor sealing leads to leakage and cross-contamination. This device can automatically open and close the sealing strip through a drive motor to complete the layered sampling of the liquid. At the same time, the drive motor can drive the cleaning blades to efficiently clean the sampling chamber, effectively avoiding the contamination of the previous sample by the next sample and ensuring the accuracy of sampling and testing.

[0023] Example

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical solution in this application embodiment effectively solves the technical problems of needing to accurately sample milk at different depths in the central control sampling of dairy production lines, the difficulty of stratification in existing devices, the cumbersome manual operation, the susceptibility to bacterial contamination, and the leakage and cross-contamination caused by poor sealing. The overall idea is as follows: A food microbial detection anti-contamination sampling device includes a sampler 1. A support 2 for easy hand-holding is vertically fixed in the middle of the outer wall of the sampler 1. An inner cavity 3 penetrating into the interior is opened along the axial direction on the side wall of the sampler 1. An arc-shaped groove 4 is opened along the circumference at the upper end of the sampler 1. One end of the arc-shaped groove 4 is connected to the top of the inner cavity 3. Two plate-shaped motor mounting brackets 5 are symmetrically fixed along the axis at the upper end of the sampler 1. A drive motor 6 is fixed together in the middle of the opposite side wall of the two motor mounting brackets 5. A rotating shaft 7 extending into the sampler 1 is coaxially fixed at the output end of the drive motor 6. A gear 8 is fixedly sleeved on the section of the rotating shaft 7 located outside the sampler 1. A gear 8 is fixedly sleeved on the section located inside the sampler 1 along the axial direction. Multiple cleaning blades 9 are fixed at equal intervals, and the blades are adapted to the inner wall of the sampler 1. Two circular partition plates 10 are symmetrically fixed along the axial direction inside the sampler 1, dividing the interior into independent receiving cavities. An annular sealing gasket 12 is fixed at the center of each partition plate 10. The rotating shaft 7 passes through and is rotatably installed in the two annular sealing gaskets 12 and is in close contact with the sealing gaskets. A sealing strip 13 adapted to the groove body is slidably embedded in the arc-shaped groove 4. The sealing strip 13 has continuous teeth 14 along its length on the side wall facing the gear 8. The teeth 14 are fully engaged with the gear 8, forming an independent receiving cavity inside the sampler. The drive motor drives the sealing strip to slide along the arc-shaped groove through the gear teeth, accurately controlling the opening and closing of the inner cavity to achieve layered sampling and reduce contamination from manual operation. The cleaning blades rotate with the rotating shaft, thoroughly scraping the inner wall of the receiving cavity to remove residues. The annular sealing gasket prevents the sample from leaking along the rotating shaft. The entire process from sampling to cleaning ensures the anti-contamination effect and improves the accuracy of detection.

[0025] Elastic sealing gaskets 11 are fixedly installed on the edge sidewalls of both partition plates 10. The side of the sealing gasket 11 away from the partition plate 10 is tightly fitted to the inner wall of the sampler 1 and covers the connection gap between the partition plate 10 and the sampler 1. The elastic sealing gasket fills the gap between the partition plate and the inner wall of the sampler and achieves a tight seal by using its own elasticity, preventing samples from different cavities from seeping and mixing through the gap, ensuring the independence of the samples in the stratified sampling, further reducing the risk of cross-contamination, and ensuring the accuracy of the test data.

[0026] Two sets of side rods 15 are symmetrically fixedly installed on the lower part of the outer side wall of the sampler 1 along the axis. Each set of side rods 15 consists of two parallel rods. The inner side walls of both sets of side rods 15 are provided with inner grooves 16 along the length direction. The outer side walls are provided with limiting grooves 17 that communicate with the inner grooves 16. The inner grooves 16 and the limiting grooves 17 have the same length. The side rods provide a lateral support foundation for the device through symmetrical distribution. The corresponding opening of the inner grooves and limiting grooves provides matching installation and sliding space for the inner rods and sliding columns. The clear structural adaptation relationship ensures that the subsequent support structure can be stably adjusted. Conditions are reserved to adapt to different sampling depths, thereby improving the applicability of the device.

[0027] Both sets of side rods 15 have inner rods 18 slidably embedded in their inner grooves 16, and sliding columns 19 are slidably embedded in their limiting grooves 17. The outer wall of the inner rod 18 is fixedly connected to one end of the sliding column 19, and the other end of the sliding column 19 extends to the outside of the side rod 15. The sliding direction of the inner rod 18 and the sliding column 19 is consistent with the length direction of the side rod 15. The fixed connection between the inner rod and the sliding column forms a linkage structure. The inner rod slides along the inner groove to provide stable support, and the sliding column slides along the limiting groove to realize position visualization and adjustment guidance. The two work together to make the extension and retraction adjustment of the support structure more stable and smooth. The insertion length of the device can be flexibly adjusted according to the depth of the sampling container, improving the convenience of operation.

[0028] The sections of the two sets of sliding columns 19 extending to the outside of the side rod 15 are provided with external threads, and each section is threaded with an annular threaded ring 20. The inner diameter of the threaded ring 20 is adapted to the outer diameter of the sliding column 19. After tightening, the inner side wall of the threaded ring 20 fits tightly with the outer side wall of the side rod 15. The threaded ring and the sliding column form a lockable structure through the thread. After adjusting to the target position, tighten the threaded ring. The self-locking property of the thread and the friction of the side wall of the side rod are used to fix the position of the sliding column, thereby locking the extension length of the inner rod. This ensures that the support height of the device is stable during the sampling process, avoids the sampling depth deviation or device shaking caused by sliding, and ensures the sampling stability.

[0029] Two sets of inner rods 18 are fixedly mounted on a flat base 21 at the ends away from the side rods 15. The plane of the base 21 is perpendicular to the axis of the sampler 1, and the area of ​​the base 21 is larger than the cross-sectional area of ​​the bottom of the sampler 1. The flat base forms a stable support surface through the fixed connection with the two sets of inner rods. The larger area improves the stability of the device when it is placed, and prevents it from tipping over due to the shift of the center of gravity during sampling. The setting perpendicular to the axis of the sampler ensures that the sampler remains vertical, so that the inner cavity opening is stably aligned with the target sampling layer, improving the accuracy of the sampling angle and the safety of operation.

[0030] Two elongated shrinkage strips 22 are symmetrically fixedly installed along the length of the inner wall of the arc-shaped groove 4. The shrinkage strips 22 have an elastic restoring ability. The movable ends of the two shrinkage strips 22 are fixedly connected to the two ends of the sealing strip 13 respectively. In the natural state, the shrinkage strips 22 are in a slightly stretched state. The shrinkage strips utilize their own elastic restoring characteristics. After the drive motor drives the sealing strip to open for sampling, the shrinkage strips can assist in pulling the sealing strip to quickly return to its original position, ensuring that the sampling port is closed in time. The slightly stretched state keeps the sealing strip in contact with the inner wall of the arc-shaped groove at all times, reducing the sealing gap and effectively preventing the sample from leaking during the sampling process, further enhancing the anti-contamination effect.

[0031] The two shrink strips 22 are symmetrically distributed about the central axis of the sealing strip 13. The length direction of the shrink strip 22 is consistent with the extension direction of the arc groove 4, and its expansion and contraction direction is completely coincident with the sliding direction of the sealing strip 13 in the arc groove 4. The symmetrical distribution ensures that the pulling force of the two shrink strips on the sealing strip is equal in magnitude and opposite in direction, forming a balanced reset force and avoiding jamming or displacement of the sealing strip due to uneven force when it slides. The consistency between the expansion and contraction direction and the sliding direction ensures that the pulling force can be fully applied to the movement direction of the sealing strip, improving the stability of the sealing strip reset and the accuracy of the sealing position, and ensuring a stable and reliable sealing effect.

[0032] To address the problems existing in the prior art, this utility model provides a food microbial detection and anti-contamination sampling device. This device can automatically open and close the sealing strip through a drive motor to complete the stratified sampling of liquid. At the same time, the drive motor can drive the cleaning blades to efficiently clean the sampling chamber, effectively avoiding contamination of the previous sample by the next sample and ensuring the accuracy of sampling and testing.

[0033] Working principle:

[0034] The first step is to place the device into the liquid to be sampled during sampling. Then, the drive motor 6 can be started. Under the action of the drive motor 6, the rotating shaft 7 will be rotated, and the rotating shaft 7 will drive the gear 8 to rotate. Under the rotation of the gear 8, the sealing strip 13 that meshes with it will slide inside the arc groove 4. At this time, the sealing strip 13 will be misaligned with the inner cavity 3 to open it. The liquid to be sampled will flow into the receiving cavity separated by the partition plate 10 through the inner cavity 3. Then, the drive motor 6 is started to drive the sealing strip 13 to reset and close the inner cavity 3, thus completing the sampling. This allows the device to complete stratified sampling.

[0035] The second step is to move the base 21 outward after sampling. The movement of the base 21 will cause the inner rod 18 and the sliding column 19 to slide inside the inner groove 16 and the limiting groove 17. After adjusting to a suitable length, the threaded ring 20 can be rotated on the sliding column 19 to fix the inner rod 18. At this time, the base 21 can be placed on the ground, and the sealing strip 13 can be driven by the drive motor 6 to open the inner cavity 3. Then, the solution in the three containment chambers can be collected using a container.

[0036] The third step is to clean the cavity. At this time, clean water can be injected into the cavity, and then the drive motor 6 drives the three sets of cleaning blades 9 to rotate in both directions to clean the inside of the cavity efficiently. This can effectively avoid the contamination and impact of the previous sample on the next sample.

[0037] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A food microbial detection and anti-contamination sampling device, comprising a sampler (1), wherein a bracket (2) is fixedly mounted on the sampler (1), characterized in that, The sampler (1) has an inner cavity (3) on its side wall and an arc groove (4) communicating with the inner cavity (3) at its upper end. The sampler (1) has a motor mounting bracket (5) symmetrically fixedly installed at its upper end. A drive motor (6) is fixedly installed between the two motor mounting brackets (5). A rotating shaft (7) is installed at the output end of the drive motor (6). A gear (8) is fixedly sleeved on the rotating shaft (7) and cleaning blades (9) are fixedly installed at equal intervals. A partition plate (10) is symmetrically fixedly installed inside the sampler (1). An annular sealing gasket (12) is fixedly installed in both partition plates (10). The rotating shaft (7) is rotatably installed in the two annular sealing gaskets (12). A sealing strip (13) is slidably installed in the arc groove (4). The sealing strip (13) has teeth (14) that mesh with the gear (8) on its side wall.

2. The food microbial detection and anti-contamination sampling device as described in claim 1, characterized in that, Sealing gaskets (11) are fixedly installed on the side walls of both partitions (10).

3. The food microbial detection and anti-contamination sampling device as described in claim 1, characterized in that, Two sets of side rods (15) are symmetrically fixed on the side wall of the sampler (1). Both sets of side rods (15) are provided with an inner groove (16) and a limiting groove (17).

4. The food microbial detection and anti-contamination sampling device as described in claim 1, characterized in that, The inner rods (18) and sliding columns (19) are slidably installed inside the two sets of inner grooves (16) and limiting grooves (17), and the inner rods (18) and sliding columns (19) are fixedly connected accordingly.

5. The food microbial detection and anti-contamination sampling device as described in claim 1, characterized in that, Both sets of slides (19) are threaded with threaded rings (20) for positioning slides (19), and the threaded rings (20) are in contact with the outer wall of the side rod (15).

6. The food microbial detection and anti-contamination sampling device as described in claim 1, characterized in that, The two sets of inner rods (18) are fixedly mounted with a base (21) at the end away from the side rod (15), and the base (21) is set parallel to the sampler (1).

7. The food microbial detection and anti-contamination sampling device as described in claim 1, characterized in that, Shrinkage strips (22) are symmetrically fixedly installed in the inner wall of the arc groove (4), and the movable ends of the two shrinkage strips (22) are fixedly connected to the sealing strip (13).

8. The food microbial detection and anti-contamination sampling device as described in claim 1, characterized in that, Two shrink strips (22) are symmetrically distributed on both sides of the sealing strip (13), and the expansion and contraction direction of the shrink strips (22) is consistent with the sliding direction of the sealing strip (13).

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