A method and device for detecting staphylococcus aureus in food

Abstract

The application discloses a kind of detection method and device of staphylococcus aureus in food, it is related to food microbiological detection field.A kind of detection device of staphylococcus aureus in food, including base plate, the base plate is rotatably connected with workstation, further include: around the workbench axis is equipped with multiple groups of detection groove, the base plate is equipped with with detection groove being communicated with drain opening;The present application can simultaneously detect whether four groups of food contain staphylococcus aureus simultaneously, improve the work efficiency of food detection assay, and when whether different and same food contain staphylococcus aureus is detected simultaneously, can be conveniently used according to the demand to the inclination angle of four groups of adjusting plate is adjusted to different height, so that four groups of control adjusting assembly respectively control reagent drop adding assembly drop adding reagent amount in four groups of detection groove, improve whether the accuracy of staphylococcus aureus detection in food contains.

Description

Technical Field

[0001] This invention belongs to the field of food microbiology detection technology, specifically, it relates to a method and apparatus for detecting Staphylococcus aureus in food. Background Technology

[0002] Staphylococcus aureus is the most common foodborne pathogen in human purulent infections. It is resistant to high and low temperatures and high osmotic pressure, has a strong survival ability, and is ubiquitous in the environment. Conventional treatment methods such as disinfection cannot completely destroy the toxins it secretes.

[0003] Currently, the testing for Staphylococcus aureus in food involves laboratory testing. Based on the FEMA gene of Staphylococcus aureus, specific primers designed can accurately bind to the target gene. A nucleic acid detection method for Staphylococcus aureus has been established. By adding SYBRGREENI staining, the results can be visualized, and the detection is rapid, efficient, highly sensitive, and highly specific. It is an efficient test strip-type testing device.

[0004] However, existing Staphylococcus aureus test strips for food still have the following problems: when testing whether food contains Staphylococcus aureus, only one type of food can be tested for Staphylococcus aureus at a time, which reduces the efficiency of food testing. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a method and apparatus for detecting Staphylococcus aureus in food that can overcome or at least partially solve the above problems.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0007] A device for detecting Staphylococcus aureus in food includes a base plate on which a worktable is rotatably connected. It further includes: multiple sets of detection slots arranged around the axis of the worktable; a drain outlet on the base plate communicating with the detection slots; a collar fixedly connected to the base plate, with a pressing block fixedly connected to the collar; a receiving and sealing assembly, with multiple sets corresponding to the detection slots, the receiving and sealing assembly including a partition plate, a push rod, and a connecting seat; a hollow cavity penetrating one side of the detection slots within the worktable; a partition plate slidably connected within the hollow cavity; a spring connecting the hollow cavity and the partition plate; a push rod connected to the partition plate; and a connecting seat rotatably connected to the end of the push rod penetrating the outer wall of the worktable; and a drive assembly. The system includes a component for driving the worktable to rotate; a housing fixedly connected to the base plate; a reagent dispensing assembly for dispensing reagent into one of a set of multiple detection slots on the top inner wall of the housing; a control and adjustment assembly for controlling the amount of reagent dispensed into the detection slot by the reagent dispensing assembly on the worktable; multiple sets of control and adjustment assemblies corresponding to the detection slots; a control and adjustment assembly including an adjustment plate and a connecting plate; a groove on the worktable; the adjustment plate rotatably connected to the groove; a support plate rotatably connected to the lower side of the adjustment plate; a connecting plate fixedly connected to the groove; and multiple sets of limiting plates on the connecting plate; the end of the support plate away from the adjustment plate abutting against the limiting plate.

[0008] Preferably, the detection slots are provided in four sets at equal intervals around the axis of the worktable, and the receiving sealing component and the control adjustment component are provided in four sets at equal intervals around the axis of the worktable, corresponding to the four sets of detection slots.

[0009] To drive the worktable to rotate, preferably, the drive assembly for driving the worktable to rotate includes a motor, a gear, and a gear ring. The motor is fixedly installed on the inner wall of the housing, the gear is fixedly sleeved on the output end of the motor, and the gear ring is fixedly sleeved on the outer wall of the worktable. The gear and the gear ring are meshed together.

[0010] To prevent dust, preferably, a support rod is fixedly connected to the inner wall of the top of the housing, and a sealing cover is fixedly connected to the end of the support rod away from the inner wall of the top of the housing. The sealing cover fits against the upper side of the workbench and covers and seals three of the four sets of detection grooves.

[0011] To facilitate observation of the color change of the reagent during the detection of the analyte in the detection tank, both the sealing cover and the top of the housing are made transparent.

[0012] Preferably, six sets of limiting plates are equidistantly arranged, and all six sets of limiting plates are fixedly connected to the connecting plate.

[0013] To facilitate the addition of reagents to the detection tank, preferably, the reagent addition assembly includes a sleeve and a piston disc. The sleeve is fixedly connected to the inner wall of the top of the housing, and the piston disc is slidably connected to the inner wall of the sleeve. A connecting rod is fixedly connected to the piston disc, and a pressing head is fixedly connected to one end of the connecting rod through the bottom of the sleeve. The pressing head abuts against an adjusting plate. A spring is fixedly connected between the piston disc and the sleeve. A liquid storage tank is fixedly installed on the top of the housing. A mounting base is fixedly connected to the outer wall of the sleeve, and a spray nozzle is fixedly connected to the mounting base. The spray nozzle is fixedly connected to the inner cavity of the sleeve through a second conduit, and the sleeve is fixedly connected to the inner cavity of the liquid storage tank through a first conduit. The spray nozzle corresponds to the detection tank, and both the first and second conduits are equipped with one-way valves.

[0014] To further enhance the sealing performance of the sleeve, a sealing ring is provided at the bottom of the sleeve, which fits against the outer wall of the connecting rod.

[0015] In order to collect the test strips and test samples after testing, preferably, a box is fixedly connected to the bottom of the base plate, and the inner cavity of the box is connected to the drain outlet.

[0016] A method for detecting Staphylococcus aureus in food, comprising the following steps:

[0017] Step 1: When testing whether Staphylococcus aureus is present in the same food, the motor drives the worktable to rotate slowly, causing the connecting seat to push the partition into the test slot;

[0018] Step 2: Users can place the test strips and the food to be tested into the four test slots in sequence;

[0019] Step 3: After the workbench rotates to a certain angle, the pressing head contacts the adjusting plate and pushes the piston disc upward to draw the reagent in the storage tank into the sleeve.

[0020] Step 4: When the pressing head separates from the inclined end of the adjusting plate, the piston disc squeezes the reagent in the sleeve and sprays it out through the spray nozzle, adding the reagent into the detection tank;

[0021] Step 5: When the detection groove follows the rotation of the workbench and is parallel to the notch opened in the collar, and coincides with the drain outlet, the partition retracts into the hollow cavity.

[0022] Step Six: When simultaneously testing different and identical foods for the presence of Staphylococcus aureus, the support plate can be rotated, and the tilting ends of the four sets of adjusting plates can be moved up and down in sequence by rotating the six sets of equidistant limiting plates on the connecting plate.

[0023] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0024] This invention enables simultaneous detection and testing of Staphylococcus aureus in four groups of food products, improving the efficiency of food testing. Furthermore, when simultaneously testing different and identical foods for Staphylococcus aureus, the user can easily adjust the tilt angle of the four adjustment plates to different heights as needed. This allows the four control adjustment components to control the amount of reagent added to the four test chambers by the reagent dispensing components, thereby improving the accuracy of Staphylococcus aureus detection in food products.

[0025] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the structure of a device for detecting Staphylococcus aureus in food according to the present invention. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the workbench of the detection device for Staphylococcus aureus in food according to the present invention;

[0029] Figure 3 This is a cross-sectional view of the workbench of the detection device for Staphylococcus aureus in food according to the present invention.

[0030] Figure 4 This is a cross-sectional view of the detection tank of a detection device for Staphylococcus aureus in food according to the present invention;

[0031] Figure 5 This is a schematic diagram of the bottom structure of the base plate of the detection device for Staphylococcus aureus in food according to the present invention;

[0032] Figure 6 This invention relates to a device for detecting Staphylococcus aureus in food. Figure 1 Enlarged view of section A;

[0033] Figure 7 This is a schematic diagram of the structure of the sleeve of the detection device for Staphylococcus aureus in food according to the present invention;

[0034] Figure 8 This is a schematic diagram of the internal structure of the detection device for Staphylococcus aureus in food according to the present invention.

[0035] Figure 9 This is a schematic diagram of the housing structure of a detection device for Staphylococcus aureus in food according to the present invention. Figure 2 .

[0036] In the diagram: 1. Base plate; 101. Workbench; 102. Detection groove; 103. Drain outlet; 2. Motor; 201. Gear; 202. Gear ring; 3. Groove; 301. Adjusting plate; 302. Support plate; 303. Connecting plate one; 304. Limiting plate; 4. Sleeve; 401. Spring one; 402. Piston disc; 403. Connecting rod; 404. Pressing head; 405. Guide tube one; 406. Liquid storage tank; 407. Guide tube two; 408. Mounting base; 409. Spray nozzle; 410. Sealing ring; 5. Housing; 501. Support rod; 5 02. Sealing cover; 6. Collar; 601. Pressing block; 7. Hollow cavity; 701. Partition plate; 702. Spring 2; 703. Push rod; 704. Connecting seat; 8. Piston plate; 801. Pipe 1; 802. Hollow tube 1; 803. Hollow tube 2; 804. Hollow tube 3; 805. Connecting plate 2; 806. Air nozzle; 807. Pipe 2; 808. Rotary joint; 9. Box body; 901. Partition plate; 902. Storage cavity 1; 903. Storage cavity 2; 904. Collection frame 1; 905. Collection frame 2; 906. Handle. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0038] Example 1: Refer to Figures 1-9A detection device for Staphylococcus aureus in food includes a base plate 1, a workbench 101 rotatably connected to the base plate 1, and further includes: multiple sets of detection slots 102 formed around the axis of the workbench 101, and a drain port 103 connected to the detection slots 102 on the base plate 1; a collar 6 fixedly connected to the base plate 1, and a pressing block 601 fixedly connected to the collar 6; and a receiving and sealing assembly, with multiple sets corresponding to the detection slots 102, including a partition plate 701, a push rod 703, and a connecting seat 704. A hollow cavity 7 penetrating one side of the detection slots 102 is formed inside the workbench 101, the partition plate 701 is slidably connected to the hollow cavity 7, a spring 702 is provided between the hollow cavity 7 and the partition plate 701, the push rod 703 is connected to the partition plate 701, and the connecting seat 704 is rotatably connected to the push rod 703 penetrating the outer wall of the workbench 101. One end has a drive assembly for driving the workbench 101 to rotate; a housing 5 is fixedly connected to the base plate 1, and the inner wall of the top of the housing 5 is provided with a reagent dispensing assembly for dispensing reagent into one of the multiple sets of detection slots 102. The workbench 101 is provided with a control adjustment assembly for controlling the amount of reagent dispensing into the detection slot 102 by the reagent dispensing assembly. The control adjustment assembly is provided with multiple sets corresponding to the detection slots 102. The control adjustment assembly includes an adjustment plate 301 and a connecting plate 303. The workbench 101 has a groove 3, and the adjustment plate 301 is rotatably connected in the groove 3. The lower side of the adjustment plate 301 is rotatably connected to a support plate 302. The connecting plate 303 is fixedly connected in the groove 3. The connecting plate 303 is provided with multiple sets of limiting plates 304. The end of the support plate 302 away from the adjustment plate 301 abuts against the limiting plate 304.

[0039] Four sets of detection slots 102 are equidistantly arranged around the axis of the worktable 101. The four sets of detection slots 102 corresponding to the sealing component and the control and adjustment component are all equidistantly arranged around the axis of the worktable 101.

[0040] The drive assembly that drives the worktable 101 to rotate includes a motor 2, a gear 201, and a gear ring 202. The motor 2 is fixedly installed on the inner wall of the housing 5, the gear 201 is fixedly sleeved on the output end of the motor 2, and the gear ring 202 is fixedly sleeved on the outer wall of the worktable 101. The gear 201 and the gear ring 202 are meshed together.

[0041] Both the sealing cover 502 and the top of the housing 5 are transparent.

[0042] The reagent dispensing assembly includes a sleeve 4 and a piston disc 402. The sleeve 4 is fixedly connected to the inner wall of the top of the housing 5. The piston disc 402 is slidably connected to the inner wall of the sleeve 4. A connecting rod 403 is fixedly connected to the piston disc 402. A pressing head 404 is fixedly connected to one end of the connecting rod 403 through the bottom of the sleeve 4. The pressing head 404 abuts against the adjusting plate 301. A spring 401 is fixedly connected between the piston disc 402 and the sleeve 4. A liquid storage tank 406 is fixedly installed on the top of the housing 5. A mounting base 408 is fixedly connected to the outer wall of the sleeve 4. A spray nozzle 409 is fixedly connected to the mounting base 408. The spray nozzle 409 is fixedly connected to the inner cavity of the sleeve 4 through a second conduit 407. The sleeve 4 is fixedly connected to the inner cavity of the liquid storage tank 406 through a first conduit 405. The spray nozzle 409 corresponds to the detection groove 102. One-way valves are provided on both the first conduit 405 and the second conduit 407.

[0043] The bottom of the base plate 1 is fixedly connected to the box 9, and the inner cavity of the box 9 is connected to the drain outlet 103.

[0044] When testing whether Staphylococcus aureus is present in the same food, the motor 2 is started. The motor 2 drives the worktable 101 to rotate slowly through the meshing connection between the gear 201 and the gear ring 202. At this time, the connecting seat 704 with the notch on the corresponding collar 6 moves synchronously with the worktable 101, so that the connecting seat 704 contacts the pressing block 601. Since the pressing block 601 is designed with an inclined arc surface, as the connecting seat 704 moves synchronously with the worktable 101 while adhering to the inner side of the pressing block 601, the connecting seat 704 is squeezed and drives the partition 701 to move closer to the axis of the worktable 101 through the push rod 703, stretching the spring 702 until the partition 701 is removed from the hollow cavity 7 and inserted into the detection slot 102. Then the user can place the test strip and the food to be tested into the detection slot 102 in sequence.

[0045] Simultaneously, when the workbench 101 rotates a certain angle, the pressing head 404 contacts the adjusting plate 301. As the workbench 101 rotates, the pressing head 404 moves from the rotating end to the inclined end of the adjusting plate 301. This causes the pressing head 404 to press the piston disc 402 upwards within the sleeve 4 via the connecting rod 403, compressing the spring 401. At this time, the piston disc 402 draws reagent from the storage tank 406 into the sleeve 4 through the conduit 405. Then, when the pressing head 404 separates from the inclined end of the adjusting plate 301, the compressed spring 401 generates thrust, pushing the piston disc 402 within the sleeve. The cylinder 4 moves downward to reset and squeezes the reagent in the sleeve 4 through the conduit 407 to be delivered into the spray nozzle 409 and sprayed out. Then, the reagent is added into the detection tank 102 corresponding to the spray nozzle 409, so that the reagent after entering the detection tank 102 comes into contact with the test paper. The color change of the test paper is used to quickly and intuitively detect whether there is Staphylococcus aureus in the food. Then, the workbench 101 continues to move slowly forward. At this time, the user can intuitively observe the color change of the test paper in the detection tank 102 through the top of the shell 5 made of transparent material and the sealing cover 502.

[0046] Meanwhile, when the detection slot 102 rotates with the workbench 101 and is parallel to the notch in the collar 6, and coincides with the drain port 103, the connecting seat 704 separates from the collar 6 through the notch as the workbench 101 rotates. The stretched spring 702 then generates tension, pulling the partition 701 away from the axis of the workbench 101, causing the partition 701 to retract into the hollow cavity 7, connecting the detection slot 102 and the drain port 103. This allows the tested food and test strips in the detection slot 102 to fall into the housing 9 through the drain port 103, facilitating the processing of the tested food and test strips. The collection and cleaning process is carried out by means of four sets of detection slots 102 equidistantly arranged around the axis of the workbench 101. The receiving sealing component and control adjustment component are also equidistantly arranged around the axis of the workbench 101 for each of the four sets of detection slots 102. Therefore, when testing whether Staphylococcus aureus is present in one set of detection slots 102, the motor 2 drives the workbench 101 to rotate slowly through the meshing connection between the gear 201 and the gear ring 202, repeating the above operation steps. This allows for simultaneous testing of whether Staphylococcus aureus is present in four sets of food, thereby improving the efficiency of food testing.

[0047] Example 2: Refer to Figure 1 , Figure 2 and Figure 6 A detection device for Staphylococcus aureus in food is basically the same as that in Example 1. Furthermore, six sets of limiting plates 304 are equidistantly arranged, and all six sets of limiting plates 304 are fixedly connected to the connecting plate 303.

[0048] When simultaneously testing different and identical foods for the presence of Staphylococcus aureus, the amount of reagent added to the four test chambers 102 needs to be adjusted accordingly. At this time, the user can rotate the support plate 302 of the four test chambers 102 in sequence with the different foods in the four test chambers 102. When the support plate 302 moves closer to the rotating end of the adjustment plate 301, the tilt angle of the adjustment plate 301 is higher. Conversely, when the support plate 302 moves away from the rotating end of the adjustment plate 301, the tilt angle of the adjustment plate 301 is lower. Since six sets of limiting plates 304 are fixedly connected at equal intervals on the connecting plate 303, the user can easily adjust the tilt angle of the four adjustment plates 301 to different heights according to their needs.

[0049] For example, when the pressing head 404 contacts the adjusting plate 301 with a higher tilt angle and moves from the rotating end to the tilting end of the adjusting plate 301, the pressing head 404 squeezes the piston disc 402 through the connecting rod 403 to move upward in the sleeve 4 a greater distance, and compresses the spring 401. At the same time, the piston disc 402 draws a large amount of reagent from the storage tank 406 into the sleeve 4 through the conduit 405. Then, when the pressing head 404 separates from the tilting end of the adjusting plate 301, the compressed spring 401 generates a thrust, pushing the piston disc 402 to move downward and reset in the sleeve 4, and squeezing the reagent in the sleeve 4 to be delivered into the spray nozzle 409 through the conduit 407 and sprayed out, thereby adding a large amount of reagent to the detection groove 102 corresponding to the spray nozzle 409.

[0050] When the pressing head 404 contacts the adjusting plate 301 with a lower tilt angle and moves from the rotating end to the tilting end of the adjusting plate 301, the pressing head 404, through the connecting rod 403, presses the piston disc 402 to move upward within the sleeve 4 a closer distance, compressing the spring 401. Simultaneously, the piston disc 402 draws a small amount of reagent from the storage tank 406 into the sleeve 4 through the conduit 405. Then, when the pressing head 404 separates from the tilting end of the adjusting plate 301, the compressed spring 401 generates a thrust, pushing the piston disc 402. 02 moves downward and resets within the sleeve 4, and squeezes the reagent inside the sleeve 4 through the conduit 407 to be delivered into the spray nozzle 409 and sprayed out, thereby adding a small amount of reagent into the detection tank 102 corresponding to the spray nozzle 409. In summary, this enables the simultaneous detection of whether Staphylococcus aureus is present in the same and different foods, and facilitates the four sets of control and adjustment components to control the amount of reagent added to the four sets of detection tanks 102 by the reagent dripping components, thereby improving the accuracy of detecting whether Staphylococcus aureus is present in food.

[0051] When testing for Staphylococcus aureus in the same food, the user can sequentially rotate the support plate 302 of each of the four sets of detection slots 102, so that each set of support plate 302 is engaged with one of the six sets of limiting plates 304 that are equidistantly fixed on the corresponding connecting plate 303. This allows the tilt angle of the four sets of adjustment plates 301 to be adjusted to the same height. Thus, when testing for Staphylococcus aureus in the four sets of the same food, the four sets of control and adjustment components can accurately control the reagent dispensing components to add the same amount of reagent to the four sets of detection slots 102, thereby improving the accuracy of the detection of Staphylococcus aureus in food.

[0052] Example 3: Reference Figure 1 , Figure 7 and Figure 9 A detection device for Staphylococcus aureus in food is basically the same as in Example 1, but with the following additional features: a support rod 501 is fixedly connected to the inner wall of the top of the housing 5, and a sealing cover 502 is fixedly connected to the end of the support rod 501 away from the inner wall of the top of the housing 5. The sealing cover 502 is in contact with the upper side of the workbench 101, and the sealing cover 502 covers and seals three of the four sets of detection slots 102. During the detection of Staphylococcus aureus in food, the sealing cover 502 can seal the detection slots 102 after the reagent has been added, thereby preventing external dust from entering the detection slots 102 and adhering to the test paper, and avoiding the dust adhering to the test paper from affecting the reagent and test paper in detecting Staphylococcus aureus in food.

[0053] Example 4: Reference Figure 7 A detection device for Staphylococcus aureus in food is basically the same as in Example 1, but with a further improvement: a sealing ring 410 is provided at the bottom of the sleeve 4, and the sealing ring 410 is in contact with the outer wall of the connecting rod 403; when the piston disc 402 moves upward in the sleeve 4 and draws the reagent in the storage tank 406 into the sleeve 4 through the first conduit 405, the sealing ring 410 is in contact with the outer wall of the connecting rod 403, thereby increasing the sealing performance of the sleeve 4 and preventing leakage of the reagent in the storage tank 406 when it enters the sleeve 4 through the first conduit 405, thus avoiding reagent waste.

[0054] Example 5: Refer to Figure 3 , Figure 4 , Figure 5 and Figure 8A detection device for Staphylococcus aureus in food, differing from Example 1, further includes four sets of hollow cavities 7, each with a piston plate 8 slidably connected. A partition plate 701 and a push rod 703 are fixedly connected to both sides of the piston plate 8. A second spring 702 is fixedly connected between the piston plate 8 and the hollow cavity 7. Each of the four sets of hollow cavities 7 is fixedly connected to a pipe 801. The end of the pipe 801 away from the hollow cavity 7 penetrates the side wall of the workbench 101. The workbench 101 contains hollow tubes 802 that communicate with each of the four sets of hollow cavities 7, and hollow tubes 802 that communicate with each of the four sets of hollow tubes 802. Hollow tube 2 803 is provided inside the workbench 101 and is connected to hollow tube 3 804. The end of hollow tube 3 804 away from hollow tube 2 803 passes through the bottom of the base plate 1. A rotary joint 808 is connected to the air inlet end of hollow tube 3 804 at the bottom of the base plate 1. A connecting plate 2 805 is fixedly connected to the bottom of the base plate 1. Multiple sets of air nozzles 806 are fixedly connected to the connecting plate 2 805. The air nozzles 806 are connected to the rotary joint 808 through pipe 2 807. A partition plate 901 is fixedly connected to the inner wall of the box 9. Storage cavity 1 902 and storage cavity 2 903 are respectively provided on both sides of the partition plate 901 inside the box 9.

[0055] When testing for Staphylococcus aureus in food, the connecting seat 704 is compressed, which drives the push rod 703 to move the partition 701 closer to the axis of the workbench 101. During the stretching of the second spring 702, the piston plate 8 moves synchronously with the partition 701 and draws external gas into the hollow cavity 7 through the first pipe 801. After the test for Staphylococcus aureus in the food is completed, one of the four sets of detection slots 102 is aligned with the drain port 103. At this time, the connecting seat 704 corresponding to this detection slot 102 separates from the collar 6 through the notch on the collar 6. The stretched second spring 702 then generates tension, pulling the piston plate 8 away from the axis of the workbench 101 and compressing the gas in the hollow cavity 7. The gas is then transported to the jet nozzle 806 through the first hollow pipe 802, the second hollow pipe 803, the third hollow pipe 804, and the second pipe 807. The airflow is generated from the inside. Both the hollow tube 802 and the pipe 801 are equipped with one-way valves, which creates a strong airflow at the drain outlet 103. At the same time, the partition 701 moves synchronously with the piston plate 8, causing the partition 701 to retract into the hollow cavity 7. At this time, the food and test strips tested in the test tank 102 fall into the box 9 through the drain outlet 103. Meanwhile, as the tested food and test strips fall into the box 9 through the drain outlet 103, the test strips are lighter and can move to the right side of the box 9 with the airflow, and then fall into the collection frame 904 in the storage cavity 903. Meanwhile, the heavier food falls into the collection frame 905 in the storage cavity 902 on the left side of the box 9 by its own weight. This can separate and collect the tested food and test strips, making it easier to clean them separately later.

[0056] It should be noted that an exhaust port (not shown in the figure) is provided on the right side wall of the housing 9, so that the gas ejected from the jet nozzle 806 forms a strong airflow at the drain port 103, and the gas is discharged from the housing 9 through the exhaust port.

[0057] Example 6: Refer to Figure 9 A detection device for Staphylococcus aureus in food is basically the same as that in Example 5. Furthermore, a collection frame 905 is inserted into the storage cavity 902, and a collection frame 904 is inserted into the storage cavity 903. The outer walls of the collection frame 904 and the collection frame 905 are both fixedly connected to handles 906.

[0058] When it is necessary to clean the food collected in collection box 2 905 after testing and the test strips collected in collection box 1 904, the user can manually pull collection box 2 905 and collection box 1 904 out of the box 9 respectively through handle 906, so as to facilitate cleaning the food collected in collection box 2 905 after testing and the test strips collected in collection box 1 904.

[0059] Example 7: A method for detecting Staphylococcus aureus in food, comprising the following steps:

[0060] Step 1: When testing whether Staphylococcus aureus is present in the same food, the motor 2 drives the worktable 101 to rotate slowly, so that the connecting seat 704 pushes the partition 701 to insert into the detection slot 102.

[0061] Step 2: Users can place the test strips and the food to be tested into the four sets of test slots 102 in sequence;

[0062] Step 3: After the workbench 101 rotates to a certain angle, the pressing head 404 contacts the adjusting plate 301 and pushes the piston plate 402 upward to draw the reagent in the storage tank 406 into the sleeve 4.

[0063] Step 4: When the pressing head 404 separates from the inclined end of the adjusting plate 301, the piston disc 402 squeezes the reagent in the sleeve 4 and sprays it out through the spray nozzle 409, adding the reagent into the detection tank 102.

[0064] Step 5: When the detection groove 102 rotates with the workbench 101 and is parallel to the notch opened in the collar 6, and coincides with the drain outlet 103, the partition 701 retracts into the hollow cavity 7.

[0065] Step 6: When simultaneously testing whether Staphylococcus aureus is present in different and the same foods, the support plate 302 can be rotated, and the tilting ends of the four sets of adjusting plates 301 can be moved up and down in sequence by rotating the support plate 302 in conjunction with the six sets of equidistant limiting plates 304 on the connecting plate 303.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A device for detecting Staphylococcus aureus in food, comprising a base plate (1), wherein a worktable (101) is rotatably connected to the base plate (1), characterized in that, Also includes: Multiple sets of detection slots (102) are provided around the axis of the workbench (101), and a drain outlet (103) connected to the detection slots (102) is provided on the base plate (1). A collar (6) is fixedly connected to the base plate (1), and a pressing block (601) is fixedly connected to the collar (6). The receiving sealing assembly is provided with multiple sets corresponding to the detection groove (102). The receiving sealing assembly includes a partition plate (701), a push rod (703), and a connecting seat (704). A hollow cavity (7) penetrating one side of the detection groove (102) is opened in the workbench (101). The partition plate (701) is slidably connected in the hollow cavity (7). A spring (702) is provided between the hollow cavity (7) and the partition plate (701). The push rod (703) is connected to the partition plate (701). The connecting seat (704) is rotatably connected to one end of the push rod (703) that penetrates the outer wall of the workbench (101). A drive assembly for driving the worktable (101) to rotate; The housing (5) is fixedly connected to the base plate (1). The inner top wall of the housing (5) is provided with a reagent dispensing assembly for dispensing reagent into one of the multiple sets of detection slots (102). The workbench (101) is provided with a control adjustment component for controlling the amount of reagent added to the detection tank (102) by the reagent adding component. The control adjustment component is provided in multiple sets corresponding to the detection tank (102). The control adjustment component includes an adjustment plate (301) and a connecting plate (303). The workbench (101) is provided with a groove (3). The adjustment plate (301) is rotatably connected in the groove (3). The lower side of the adjustment plate (301) is rotatably connected to a support plate (302). The connecting plate (303) is fixedly connected in the groove (3). The connecting plate (303) is provided with multiple sets of limiting plates (304). The end of the support plate (302) away from the adjustment plate (301) abuts against the limiting plate (304). The connecting seat (704) with a notch on the collar (6) moves synchronously with the worktable (101), so that the connecting seat (704) contacts the pressing block (601). Since the pressing block (601) is an inclined arc surface design, as the connecting seat (704) is pressed against the inner side of the pressing block (601) and moves synchronously with the worktable (101), the connecting seat (704) is squeezed and drives the partition (701) to move closer to the axis of the worktable (101) through the push rod (703). The reagent dispensing assembly includes a sleeve (4) and a piston disc (402). The sleeve (4) is fixedly connected to the inner wall of the top of the housing (5). The piston disc (402) is slidably connected to the inner wall of the sleeve (4). A connecting rod (403) is fixedly connected to the piston disc (402). A pressing head (404) is fixedly connected to one end of the connecting rod (403) through the bottom of the sleeve (4). The pressing head (404) abuts against the adjusting plate (301). A spring (401) is fixedly connected between the piston disc (402) and the sleeve (4). A liquid storage tank (406) is fixedly installed on the top of the shell (5). A mounting base (408) is fixedly connected to the outer wall of the sleeve (4). A spray nozzle (409) is fixedly connected to the mounting base (408). The spray nozzle (409) is fixedly connected to the inner cavity of the sleeve (4) through the second conduit (407). The sleeve (4) is fixedly connected to the inner cavity of the liquid storage tank (406) through the first conduit (405). The spray nozzle (409) corresponds to the detection groove (102). One-way valves are provided on the first conduit (405) and the second conduit (407). When simultaneously testing whether Staphylococcus aureus is present in different and the same foods, the tilting ends of four sets of adjusting plates (301) can be moved up and down by rotating the support plate (302) in conjunction with the six sets of equidistant limiting plates (304) on the connecting plate (303).

2. The detection device for Staphylococcus aureus in food according to claim 1, characterized in that, The detection slots (102) are equidistantly arranged in four groups around the axis of the worktable (101). The receiving sealing component and the control adjustment component are also equidistantly arranged in four groups around the axis of the worktable (101) for the four groups of detection slots (102).

3. The device for detecting Staphylococcus aureus in food according to claim 1, characterized in that, The drive assembly that drives the worktable (101) to rotate includes a motor (2), a gear (201), and a gear ring (202). The motor (2) is fixedly installed on the inner wall of the housing (5). The gear (201) is fixedly sleeved on the output end of the motor (2). The gear ring (202) is fixedly sleeved on the outer wall of the worktable (101). The gear (201) and the gear ring (202) are meshed together.

4. The device for detecting Staphylococcus aureus in food according to claim 1, characterized in that, A support rod (501) is fixedly connected to the inner wall of the top of the housing (5). A sealing cover plate (502) is fixedly connected to one end of the support rod (501) away from the inner wall of the top of the housing (5). The sealing cover plate (502) is in contact with the upper side of the workbench (101). The sealing cover plate (502) covers and seals three of the four sets of detection grooves (102).

5. The detection device for Staphylococcus aureus in food according to claim 4, characterized in that, The top of both the sealing cover (502) and the housing (5) are transparent.

6. The device for detecting Staphylococcus aureus in food according to claim 1, characterized in that, The limiting plates (304) are arranged in six sets at equal intervals, and all six sets of the limiting plates (304) are fixedly connected to the connecting plate (303).

7. The device for detecting Staphylococcus aureus in food according to claim 1, characterized in that, The bottom of the sleeve (4) is provided with a sealing ring (410), which is in contact with the outer wall of the connecting rod (403).

8. The device for detecting Staphylococcus aureus in food according to claim 1, characterized in that, The bottom of the base plate (1) is fixedly connected to the box (9), and the inner cavity of the box (9) is connected to the drain outlet (103).

9. A method for detecting Staphylococcus aureus in food, using the detection device for Staphylococcus aureus in food as described in claim 1, characterized in that, Follow these steps: Step 1: When testing whether Staphylococcus aureus is present in the same food, the motor (2) drives the worktable (101) to rotate slowly, so that the connecting seat (704) pushes the partition (701) into the detection slot (102); Step 2: The user can place the test strip and the food to be tested into the four test slots (102) in sequence; Step 3: After the workbench (101) rotates to a certain angle, the pressing head (404) contacts the adjusting plate (301) and pushes the piston plate (402) upward to draw the reagent in the storage tank (406) into the sleeve (4); Step 4: When the pressing head (404) separates from the inclined end of the adjusting plate (301), the piston disc (402) squeezes the reagent in the sleeve (4) and sprays it out through the spray nozzle (409) to add the reagent into the detection tank (102); Step 5: When the detection groove (102) rotates with the workbench (101) and is parallel to the notch opened in the collar (6) and coincides with the drain port (103), the partition (701) retracts into the hollow cavity (7); Step 6: When conducting simultaneous testing for Staphylococcus aureus in different and the same foods, the tilting ends of four sets of adjustment plates (301) can be moved up and down by rotating the support plate (302) in conjunction with the six sets of equidistant limit plates (304) on the connecting plate (303).

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