Culture device for food detection and food detection method

Abstract

The application discloses a culture device for food detection and a food detection method, and belongs to the field of food detection. The culture device comprises a culture box, a driving cavity is formed in the right part of the culture box, a motor is fixedly connected in the driving cavity, a bevel gear one is fixedly connected to the left end of the output shaft of the motor in the culture box, a culture mechanism is arranged below the culture box, a spraying mechanism is arranged above the culture box, and a disinfection mechanism is arranged on both sides of the culture box. The device optimizes the design of the culture mechanism, realizes efficient and stable fixation of the sample container, and can form flexible clamping of the clamping part through adjustment structure for different sizes of sample containers. The device can tightly adhere to the outer sidewall of the container, avoids shaking or displacement of the container during the culture process, avoids damage to the container caused by rigid clamping, and effectively guarantees the stability of the environment during the microbial culture process.

Description

Technical Field

[0001] The present invention relates to the field of food detection, and particularly to a culture device for food detection and a food detection method. Background Art

[0002] Food safety detection is to detect harmful substances in food according to national standards, mainly the detection of some harmful and toxic indicators, such as heavy metals, aflatoxins, etc. An important aspect of food science and engineering is to introduce and apply chemical engineering unit operations and develop them into food engineering unit operations, so as to promote the development of the food industry towards large-scale, continuous and automated directions. At present, food detection can be carried out through a food detection microbial culture device;

[0003] The existing culture dishes are not placed stably. And after biological experiments are carried out on the culture dishes, there will still be the organisms cultured in the experiments remaining on the culture dishes. In order to reuse the culture dishes, they need to be effectively cleaned. The existing cleaning of culture dishes is usually manual cleaning, which has low efficiency and poor effect, and is not conducive to reducing the work burden of experimental personnel. Summary of the Invention

[0004] Object of the Invention: The object of the present invention is to provide a food detection microbial culture device, which solves the problem that the culture dishes in the existing device are not placed stably by optimizing the placement structure of the culture dishes, ensures that the culture dishes can maintain a stable state during the microbial culture process, avoids affecting the stability of the culture environment due to placement shaking or displacement, and further guarantees the accuracy and reliability of the microbial culture experiment results in food detection. At the same time, it improves the overall operation safety and use convenience of the device; Another object of the present invention is to provide an automatic cleaning mechanism for culture dishes supporting the above culture device, aiming to replace the existing manual cleaning method. Through an automated cleaning process, it can achieve efficient and thorough cleaning of the organisms remaining after the experiment, not only greatly improving the cleaning efficiency and cleaning effect of the culture dishes, ensuring the sterility and safety of the culture dishes when reused, but also effectively reducing the work burden of experimental personnel, lowering the manual operation intensity, and promoting the development of the food detection experiment process towards automation and high efficiency.

[0005] Technical Solution: A culture device for food detection includes an incubator. A drive cavity is opened on the right side inside the incubator, and a motor is fixedly connected inside the drive cavity. The left end of the output shaft of the motor is fixedly connected with a first bevel gear inside the incubator;

[0006] A culture mechanism is arranged below the inside of the incubator;

[0007] A spraying mechanism is arranged above the inside of the incubator;

[0008] The incubator is equipped with disinfection mechanisms on both sides of its interior.

[0009] The culture mechanism includes a support rod, the two ends of which are fixedly connected to the inner sides of the culture box. The support rod is rotatably connected to a shaft column through a rotating shaft. A bevel gear two is fixedly connected to the bottom end of the shaft column, and the bevel gear two meshes with the bevel gear one.

[0010] The top of the shaft is fixedly connected to a placement plate, and the upper surface of the placement plate is provided with multiple placement slots;

[0011] The placement slot is equipped with multiple clamping airbags, and a hydraulic cylinder is fixedly connected to the upper surface of the placement plate. A connecting pipe is fixedly connected between the hydraulic cylinder and the multiple clamping airbags.

[0012] Furthermore, the front surface of the incubator is hinged to have a door mounted on it.

[0013] Furthermore, a controller is fixedly installed on the right side of the front surface of the incubator.

[0014] Furthermore, the lower inner surface of the incubator is integrally formed with a collecting cavity, and the bottom of the collecting cavity is integrally formed with a drain groove. The left end of the drain groove extends through to the left side of the incubator and is fixedly connected to a solenoid valve.

[0015] Furthermore, a threaded post is threaded onto the top of the hydraulic cylinder, and a piston plate is rotatably connected to the bottom of the threaded post, which is located inside the hydraulic cylinder, via a rotating shaft. A through-hole is provided on the right side of the upper surface of the hydraulic cylinder.

[0016] Furthermore, the spraying mechanism includes an electric push rod, the bottom of which is fixedly connected to the upper surface of the incubator. The bottom of the output end of the electric push rod is fixedly connected to a vertical rod inside the incubator. The bottom end of the vertical rod is fixedly connected to a bracket. An annular cavity is fixedly connected to the outside of the bracket. Multiple nozzles are integrally formed on the lower surface of the annular cavity. A corrugated pipe is fixedly connected to the upper surface of the annular cavity. The top end of the corrugated pipe extends through to the top of the incubator and is fixedly connected to an external pipe head.

[0017] Furthermore, baffles are fixedly connected to both sides of the annular cavity, and two actuating rods are symmetrically fixedly connected to the outer wall of the vertical rod.

[0018] Furthermore, the disinfection mechanism includes a threaded rod, with a bearing seat rotatably connected to both the top and bottom ends of the threaded rod via a rotating shaft. The bearing seat is fixedly connected to the opposite side of the incubator. A threaded sleeve is threadedly connected to the outer wall of the threaded rod, and a storage box is fixedly connected to the outer wall of the threaded sleeve. A cover plate is hinged to the side of the storage box away from the threaded sleeve. A disinfection lamp is fixedly connected to the lower surface of the cover plate. An arc-shaped guide frame is fixedly connected to the front surface of the cover plate. A guide post is fixedly connected to the front surface of the storage box, located inside the arc-shaped guide frame. A spring is fixedly connected between the guide post and the arc-shaped guide frame. A small gear is fixedly connected to the top end of the threaded rod. A large gear is meshed with the outer wall of the small gear. A cylinder is fixedly connected to the upper surface of the large gear. A spiral groove is formed on the outer wall of the cylinder. The end of the actuating rod away from the vertical rod extends into the interior of the spiral groove and is slidably connected to the spiral groove.

[0019] Furthermore, the outer arm of the storage box is fixedly connected to guide sleeves in front of and behind the threaded sleeve. A guide rod is slidably installed inside the guide sleeve. A fixing block is fixedly connected to the top and bottom of the guide rod. The fixing block is fixedly connected to the opposite side of the incubator.

[0020] According to another aspect of the present invention, a food testing method for food testing is provided, comprising the following steps:

[0021] S1. Open the chamber door, place the food sample to be tested in the placement slot of the placement tray, rotate the threaded column to move the piston plate down in the hydraulic cylinder, inflate the clamping airbag through the connecting tube, use the clamping airbag to fix the sample container, close the chamber door, and carry out microbial culture.

[0022] S2. After the culture is completed, open the chamber door, control the piston plate to rise, release the sample clamp, and then take out the sample for testing. After the test is completed, put the sample back into the placement tank and clamp it.

[0023] S3. Next, start the motor through the controller. The motor drives the first bevel gear to rotate. The first bevel gear meshes and drives the second bevel gear and the shaft to rotate, so that the placement plate rotates slowly. At the same time, connect the external pipe end to the external nutrient solution or water supply device, start the electric push rod to push the vertical rod and the annular cavity to a suitable height, and the nutrient solution or water is sprayed onto the sample from the nozzle through the corrugated pipe and the annular cavity.

[0024] S4. During the descent of the annular cavity driven by the electric push rod, the actuating rod slides within the spiral groove of the cylinder, causing the cylinder and large gear to rotate. The large gear meshes with and drives the small gear and threaded rod to rotate, causing the threaded sleeve to lift the storage box. During the lifting process, the cover plate contacts the annular cavity and is compressed. At this time, the cover plate gradually covers the storage box. Simultaneously, the arc-shaped guide frame slides along the guide post to compress the spring. After the spraying is completed, the controller controls the solenoid valve to open and discharge the cleaning wastewater. Then, the electric push rod is controlled to retract, causing the annular cavity to rise and release the compression on the cover plate. At this time, the storage box descends, and the guide frame opens the cover plate under the action of the guide post, facilitating the disinfection lamp to disinfect the inside of the incubator and the samples.

[0025] Beneficial effects: This device achieves efficient and stable fixation of sample containers through optimized design of the culture mechanism. For sample containers of different sizes, the clamping components can be adjusted to form a flexible clamp, which can not only fit tightly against the outer wall of the container to prevent shaking or displacement during culture, but also avoid damage to the container caused by rigid clamping, effectively ensuring the stability of the environment during microbial culture.

[0026] The device is equipped with a spray mechanism that enables automated cleaning of post-culture sample containers or replenishment of nutrient solutions without manual operation. During the cleaning process, the spray structure evenly distributes and sprays liquid onto the container surface. Combined with the rotation function of the placement components, it achieves all-round cleaning of the container without dead angles. Compared with traditional manual cleaning, it not only significantly improves cleaning efficiency but also avoids problems such as incomplete cleaning and inconsistent cleaning results that occur during manual cleaning.

[0027] The disinfection and spraying mechanisms work together to achieve a seamless transition between cleaning and disinfection. During the spraying cleaning phase, the disinfection components automatically retract for protection, preventing liquid splashes from damaging the disinfection elements. After spraying, the disinfection components automatically unfold and move to a suitable position to thoroughly disinfect the incubator's interior space and sample containers. Attached Figure Description

[0028] Figure 1 This is a front view structural diagram of the present invention;

[0029] Figure 2 This is a side view of the structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0031] Figure 4 This is a cross-sectional structural schematic diagram of the present invention;

[0032] Figure 5 This is a cross-sectional structural schematic diagram of the cultivation mechanism of the present invention;

[0033] Figure 6 This is a schematic diagram of the spray mechanism of the present invention;

[0034] Figure 7 This is a schematic diagram of the disinfection structure of the present invention;

[0035] Figure 8 This is the invention Figure 7 A magnified structural diagram at point A.

[0036] In the diagram: 1. Incubator; 2. Drive chamber; 3. Motor; 4. Bevel gear one; 5. Culture mechanism; 6. Spray mechanism; 7. Disinfection mechanism; 8. Controller; 9. Collection chamber; 10. Drainage tank; 11. Solenoid valve; 12. Door; 501. Support rod; 502. Shaft; 503. Bevel gear two; 504. Placement tray; 505. Placement slot; 506. Clamping airbag; 507. Hydraulic cylinder; 508. Connecting pipe; 509. Threaded column; 510. Piston plate; 511. Ventilation port; 601. Electric push rod; 602. Vertical... 603. Rod; 604. Bracket; 605. Annular cavity; 606. Nozzle; 607. Corrugated pipe; 608. Outer pipe end; 609. Baffle; 601. Actuating rod; 702. Threaded rod; 703. Shaft seat; 704. Threaded sleeve; 705. Storage box; 706. Cover plate; 707. Disinfection lamp; 708. Arc-shaped guide frame; 709. Guide post; 710. Spring; 711. Guide sleeve; 712. Guide rod; 713. Fixing block; 714. Small gear; 715. Large gear; 716. Cylinder; 717. Spiral groove. Detailed Implementation

[0037] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Example

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a food testing culture device is provided, including an incubator 1. A drive cavity 2 is provided on the right side of the incubator 1. A motor 3 is fixedly connected inside the drive cavity 2. A bevel gear 4 is fixedly connected to the left end of the output shaft of the motor 3 inside the incubator 1.

[0040] The front surface of the incubator 1 is fitted with a door 12 via a hinge;

[0041] A controller 8 is fixedly installed on the right side of the front surface of incubator 1;

[0042] The lower inner surface of the incubator 1 is integrally formed with a collection cavity 9, and the bottom of the collection cavity 9 is integrally formed with a drain trough 10. The left end of the drain trough 10 extends through to the left side of the incubator 1 and is fixedly connected to a solenoid valve 11.

[0043] A culture mechanism 5 is installed at the bottom of the incubator 1;

[0044] The culture mechanism 5 includes a support rod 501, the two ends of which are fixedly connected to the two sides of the inside of the culture box 1. The inside of the support rod 501 is rotatably connected to a shaft column 502. The bottom end of the shaft column 502 is fixedly connected to a bevel gear 2 503, which meshes with bevel gear 1 4.

[0045] The top of the shaft 502 is fixedly connected to a placement plate 504, and the upper surface of the placement plate 504 is provided with multiple placement slots 505;

[0046] The placement slot 505 is equipped with multiple clamping airbags 506. A hydraulic cylinder 507 is fixedly connected to the upper surface of the placement plate 504. A connecting pipe 508 is fixedly connected between the hydraulic cylinder 507 and the multiple clamping airbags 506.

[0047] The top of the hydraulic cylinder 507 is threaded with a threaded post 509. The bottom end of the threaded post 509, located inside the hydraulic cylinder 507, is rotatably connected to a piston plate 510 via a rotating shaft. A through-hole vent 511 is provided on the right side of the upper surface of the hydraulic cylinder 507.

[0048] Before conducting microbial culture of food samples, the sample containers must be stably placed using the culture mechanism 5. First, the operator opens the door 12 and places the containers containing the food samples to be tested, such as petri dishes, into the multiple placement slots 505 on the placement tray 504, ensuring that the bottom of the container is in contact with the inner wall of the placement slot 505. Next, for sample containers of different sizes, the threaded post 509 at the top of the hydraulic cylinder 507 is rotated. Since the threaded post 509 is threadedly connected to the hydraulic cylinder 507, its rotation causes the piston plate 510, connected at the bottom via a rotating shaft, to move downwards inside the hydraulic cylinder 507. As the piston plate 510 moves downward, it will compress the air inside the hydraulic cylinder 507. At this time, the air exchange hole 511 on the right side of the upper surface of the hydraulic cylinder 507 can balance the initial air pressure. As the piston plate 510 continues to move downward, the air is forced into the multiple clamping airbags 506 inside the placement slot 505 through multiple connecting pipes 508. After the clamping airbags 506 are inflated, they fit tightly against the outer wall of the sample container, thereby achieving flexible clamping and fixation of the sample container and preventing the container from shaking or shifting during the culture process.

[0049] After the culture is completed, rotate the threaded column 509 in the reverse direction to drive the piston plate 510 to rise inside the hydraulic cylinder 507. The air in the clamping airbag 506 flows back to the hydraulic cylinder 507 through the connecting pipe 508 and is discharged through the air exchange hole 511. After the clamping airbag 506 contracts, it releases the fixation on the sample container, and the operator can take out the container for subsequent testing. If it is necessary to re-fix the sample after testing, the above inflation and clamping steps can be repeated.

[0050] Starting motor 3 controls the rotation of culture mechanism 5, thus facilitating comprehensive spraying by subsequent spraying mechanism 6.

[0051] like Figure 6 As shown, a spraying mechanism 6 is installed at the top inside the incubator 1;

[0052] The spraying mechanism 6 includes an electric push rod 601. The bottom of the electric push rod 601 is fixedly connected to the upper surface of the incubator 1. The bottom of the output end of the electric push rod 601 is fixedly connected to a vertical rod 602 inside the incubator 1. The bottom end of the vertical rod 602 is fixedly connected to a bracket 603. The outer side of the bracket 603 is fixedly connected to an annular cavity 604. Multiple nozzles 605 are integrally formed on the lower surface of the annular cavity 604. A corrugated pipe 606 is fixedly connected to the upper surface of the annular cavity 604. The top end of the corrugated pipe 606 extends through to the top of the incubator 1 and is fixedly connected to an external pipe head 607.

[0053] Both sides of the annular cavity 604 are fixedly connected to baffles 608, and two actuating rods 609 are symmetrically fixedly connected to the outer side wall of the vertical rod 602.

[0054] When it is necessary to replenish or clean the nutrient solution in the cultured sample container, the spray mechanism 6 is activated. First, the pipe of the external nutrient solution or clean water supply device is fixedly connected to the outer pipe head 607 at the top of the corrugated pipe 606 connected to the upper surface of the annular cavity 604. The electric push rod 601 is activated by the controller 8. The output end of the electric push rod 601 extends downward, driving the vertical rod 602 located inside the incubator 1 to move down. The annular cavity 604 connected to the bottom end of the vertical rod 602 through the bracket 603 moves down synchronously until the multiple nozzles 605 on the lower surface of the annular cavity 604 move to a suitable spray height from the sample container on the placement tray 504. The extension length of the electric push rod 601 can be adjusted by the controller 8.

[0055] At the same time, the two actuating rods 609, which are symmetrically fixed on the outer wall of the vertical rod 602, move synchronously with the vertical rod 602 as it moves down, in preparation for the subsequent linkage disinfection mechanism 7;

[0056] Next, turn on the external supply device. Nutrient solution or water enters the bellows 606 through the external connector 607 and then flows into the annular cavity 604. Since the annular cavity 604 has an annular structure, the liquid can be evenly distributed to each nozzle 605 and sprayed from the nozzle 605 at a suitable pressure onto the surface of the sample container on the lower placement tray 504. If it is necessary to improve the uniformity of spraying, the motor 3 can be started. Through the meshing transmission of bevel gear 1 4 and bevel gear 2 503, the shaft 502 and the placement tray 504 are driven to rotate slowly, so that the sample container is sprayed from all directions during the rotation. After the spraying is completed, the controller 8 controls the electric push rod 601 to retract, driving the vertical rod 602, the bracket 603 and the annular cavity 604 to move upward and reset. Then, turn off the external supply device and disconnect it from the external connector 607.

[0057] like Figure 7 and Figure 8 As shown, sterilization mechanisms 7 are installed on both sides of the interior of the incubator 1;

[0058] The disinfection mechanism 7 includes a threaded rod 701. The top and bottom ends of the threaded rod 701 are rotatably connected to bearings 702 via shafts. Bearings 702 are fixedly connected to the opposite side of the incubator 1. A threaded sleeve 703 is threadedly connected to the outer wall of the threaded rod 701. A storage box 704 is fixedly connected to the outer wall of the threaded sleeve 703. A cover plate 705 is hinged to the side of the storage box 704 away from the threaded sleeve 703. A disinfection lamp 706 is fixedly connected to the lower surface of the cover plate 705. An arc-shaped guide frame 707 is fixedly connected to the front surface of the cover plate 705. The storage box 704... A guide post 708 is fixedly connected to the front surface of 04 and inside the arc-shaped guide frame 707. A spring 709 is fixedly connected between the guide post 708 and the arc-shaped guide frame 707. A small gear 713 is fixedly connected to the top of the threaded rod 701. A large gear 714 is meshed with the outer wall of the small gear 713. A cylinder 715 is fixedly connected to the upper surface of the large gear 714. A spiral groove 716 is opened on the outer wall of the cylinder 715. The end of the actuating rod 609 away from the vertical rod 602 extends into the interior of the spiral groove 716 and is slidably connected with the spiral groove 716.

[0059] The outer arm of the storage box 704 is fixedly connected to the guide sleeve 710 in front of and behind the threaded sleeve 703. The guide rod 711 is slidably installed inside the guide sleeve 710. The top and bottom ends of the guide rod 711 are fixedly connected to the fixing block 712. The fixing block 712 is fixedly connected to the opposite side of the incubator 1.

[0060] After the spray cleaning is completed, the inside of the incubator 1 and the sample container need to be disinfected by the disinfection mechanism 7, which is carried out in conjunction with the spray mechanism 6.

[0061] When the electric push rod 601 in the spray mechanism 6 moves the vertical rod 602 downward, the actuating rod 609 on the outside of the vertical rod 602 moves downward simultaneously. Since the end of the actuating rod 609 away from the vertical rod 602 extends into the spiral groove 716 on the outer wall of the cylinder 715 in the disinfection mechanism 7 and is slidably connected to the spiral groove 716, the downward movement of the actuating rod 609 will drive the cylinder 715 to rotate through the guiding action of the spiral groove 716. The large gear 714 fixed on the upper surface of the cylinder 715 will rotate synchronously. The large gear 714 meshes with the small gear 713 fixed at the top of the threaded rod 701, thereby driving the threaded rod 701 to rotate in the bearing seats 702 at the top and bottom. Since the threaded sleeve 703 connected to the outer wall of the threaded rod 701 is connected to the guide rod 711 through the guide sleeves 710 on both sides of the storage box 704, the guide rod 711 is connected to the guide rod 711 through the fixed... The fixed block 712 is fixedly and slidably connected to the inside of the incubator 1. The threaded sleeve 703 cannot rotate with the threaded rod 701, but can only move upward along the threaded rod 701, causing the storage box 704 to rise synchronously. During the rise of the storage box 704, the cover plate 705, which is connected by a hinge on the side away from the threaded sleeve 703, gradually contacts and is squeezed with the annular cavity 604 of the spray mechanism 6. The cover plate 705 rotates around the hinge. At the same time, the arc-shaped guide frame 707 fixed on the front surface of the cover plate 705 slides along the guide post 708 on the front surface of the storage box 704. The spring 709 between the arc-shaped guide frame 707 and the guide post 708 is stretched until the cover plate 705 completely covers the storage box 704. At this time, the disinfection lamp 706 fixed on the lower surface of the cover plate 705 is stored in the storage box 704 to prevent liquid from splashing onto the surface of the disinfection lamp 706 during spraying.

[0062] After spraying is completed, the electric push rod 601 retracts, causing the annular cavity 604 to move upward. The squeezing force of the annular cavity 604 on the cover plate 705 disappears, the spring 709 returns to its original deformation, and pulls the arc-shaped guide frame 707 to reset along the guide post 708. The cover plate 705 rotates in the opposite direction around the hinge and opens, revealing the disinfection lamp 706. At the same time, the electric push rod 601 drives the vertical rod 602 and the actuating rod 609 to move upward. The actuating rod 609 drives the cylinder 715 to rotate in the opposite direction through the spiral groove 716. Through the meshing of the large gear 714 and the small gear 713, the threaded rod 701 rotates in the opposite direction. The threaded sleeve 703 drives the storage box 704 to move downward along the threaded rod 701 to reset. The disinfection lamp 706 is turned on by the controller 8. The disinfection light emitted by the disinfection lamp 706 can thoroughly disinfect the internal space of the incubator 1 and the sample containers on the placement tray 504. After disinfection is completed, the disinfection lamp 706 can be turned off by the controller 8.

[0063] According to another aspect of the present invention, a food testing method for food testing is provided, comprising the following steps:

[0064] S1. Open the box door 12, place the food sample to be tested in the placement slot 505 of the placement tray 504, rotate the threaded column 509 to make the piston plate 510 move down in the hydraulic cylinder 507, inflate the clamping airbag 506 through the connecting pipe 508, use the clamping airbag 506 to fix the sample container, close the box door 12, and carry out microbial culture.

[0065] S2. After the culture is completed, open the chamber door 12, control the piston plate 510 to rise, release the sample clamp, and then take out the sample for testing. After the test is completed, put the sample back into the placement slot 505 for clamping.

[0066] S3. Next, the motor 3 is started by the controller 8. The motor 3 drives the bevel gear 4 to rotate. The bevel gear 4 meshes and drives the bevel gear 503 and the shaft 502 to rotate, so that the placement tray 504 rotates slowly. At the same time, the external pipe head 607 is connected to the external nutrient solution or water supply device. The electric push rod 601 is started to push the vertical rod 602 and the annular cavity 604 to move down to a suitable height. The nutrient solution or water is sprayed onto the sample from the nozzle 605 through the corrugated pipe 606 and the annular cavity 604.

[0067] S4. During the descent of the annular cavity 604 driven by the electric push rod 601, the actuating rod 609 slides in the spiral groove 716 of the cylinder 715, causing the cylinder 715 and the large gear 714 to rotate. The large gear 714 meshes and drives the small gear 713 and the threaded rod 701 to rotate, causing the threaded sleeve 703 to drive the storage box 704 to rise. During the rising process, the cover plate 705 comes into contact with the annular cavity 604 and is squeezed. At this time, the cover plate 705 will gradually cover the storage box 704. At the same time, the arc-shaped guide frame 707 slides along the guide post 708 to squeeze the spring 709. After the spraying is completed, the controller 8 controls the solenoid valve 11 to open and discharge the cleaning wastewater. Then, the electric push rod 601 is controlled to retract. At this time, the annular cavity 604 rises and releases the squeeze on the cover plate 705. At this time, the storage box 704 descends, and the guide frame 707 opens the cover plate 705 under the action of the guide post 708, so that the disinfection lamp 706 can disinfect the inside of the incubator 1 and the sample.

[0068] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A food testing incubation device, comprising an incubator (1), characterized in that: The incubator (1) has a drive chamber (2) on the right side inside. A motor (3) is fixedly connected inside the drive chamber (2). A bevel gear (4) is fixedly connected to the left end of the output shaft of the motor (3) inside the incubator (1). A culture mechanism (5) is provided at the bottom of the interior of the incubator (1); A spraying mechanism (6) is provided on the upper part of the incubator (1); The incubator (1) is equipped with a disinfection mechanism (7) on both sides of its interior. The culture mechanism (5) includes a support rod (501), the two ends of which are fixedly connected to the two sides of the inside of the culture box (1). The inside of the support rod (501) is rotatably connected to a shaft column (502). The bottom end of the shaft column (502) is fixedly connected to a bevel gear two (503), and the bevel gear two (503) meshes with the bevel gear one (4). The top of the shaft (502) is fixedly connected to a placement plate (504), and the upper surface of the placement plate (504) is provided with multiple placement slots (505). The placement slot (505) is provided with a plurality of clamping airbags (506), and a hydraulic cylinder (507) is fixedly connected to the upper surface of the placement plate (504). A connecting pipe (508) is fixedly connected between the hydraulic cylinder (507) and the plurality of clamping airbags (506).

2. The food testing culture device according to claim 1, characterized in that: The front surface of the incubator (1) is fitted with a door (12) via a hinge.

3. The food testing culture device according to claim 1, characterized in that: A controller (8) is fixedly installed on the right side of the front surface of the incubator (1).

4. The food testing culture device according to claim 1, characterized in that: The lower inner surface of the incubator (1) is integrally formed with a collection cavity (9), and the bottom of the collection cavity (9) is integrally formed with a drain trough (10). The left end of the drain trough (10) extends to the left side of the incubator (1) and is fixedly connected to a solenoid valve (11).

5. The food testing culture device according to claim 1, characterized in that: The top of the hydraulic cylinder (507) is threaded with a threaded post (509), and the bottom end of the threaded post (509) and located inside the hydraulic cylinder (507) is rotatably connected to a piston plate (510) via a rotating shaft. A through-hole (511) is provided on the right side of the upper surface of the hydraulic cylinder (507).

6. The food testing culture device according to claim 1, characterized in that: The spraying mechanism (6) includes an electric push rod (601). The bottom of the electric push rod (601) is fixedly connected to the upper surface of the incubator (1). The bottom of the output end of the electric push rod (601) is located inside the incubator (1) and is fixedly connected to a vertical rod (602). The bottom of the vertical rod (602) is fixedly connected to a bracket (603). The outer side of the bracket (603) is fixedly connected to an annular cavity (604). The lower surface of the annular cavity (604) is integrally formed with multiple nozzles (605). The upper surface of the annular cavity (604) is fixedly connected to a corrugated pipe (606). The top end of the corrugated pipe (606) extends through to the top of the incubator (1) and is fixedly connected to an external pipe head (607).

7. A food testing culture device according to claim 6, characterized in that: Both sides of the annular cavity (604) are fixedly connected to baffles (608), and two actuating rods (609) are symmetrically fixedly connected to the outer wall of the vertical rod (602).

8. A food testing culture device according to claim 7, characterized in that: The disinfection mechanism (7) includes a threaded rod (701), the top and bottom ends of which are rotatably connected to a bearing (702) via a rotating shaft. The bearing (702) is fixedly connected to the opposite side of the incubator (1). A threaded sleeve (703) is threadedly connected to the outer wall of the threaded rod (701). A storage box (704) is fixedly connected to the outer wall of the threaded sleeve (703). A cover plate (705) is rotatably mounted on the side of the storage box (704) away from the threaded sleeve (703) via a hinge. A disinfection lamp (706) is fixedly connected to the lower surface of the cover plate (705). An arc-shaped guide frame (707) is fixedly connected to the front surface of the cover plate (705). The storage box (706) is... A guide post (708) is fixedly connected to the front surface of the 04) and to the inner side of the arc-shaped guide frame (707). A spring (709) is fixedly connected between the guide post (708) and the arc-shaped guide frame (707). A small gear (713) is fixedly connected to the top of the threaded rod (701). A large gear (714) is meshed with the outer side wall of the small gear (713). A cylinder (715) is fixedly connected to the upper surface of the large gear (714). A spiral groove (716) is opened on the outer side wall of the cylinder (715). The end of the actuating rod (609) away from the vertical rod (602) extends into the interior of the spiral groove (716) and is slidably connected to the spiral groove (716).

9. A food testing culture device according to claim 8, characterized in that: The outer arm of the storage box (704) is fixedly connected to a guide sleeve (710) in front of and behind the threaded sleeve (703). A guide rod (711) is slidably installed inside the guide sleeve (710). A fixing block (712) is fixedly connected to the top and bottom of the guide rod (711). The fixing block (712) is fixedly connected to the opposite side of the incubator (1).

10. A food testing method for food testing, comprising the food testing culture device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Open the box door (12), place the food sample to be tested in the placement slot (505) of the placement tray (504), rotate the threaded column (509) to make the piston plate (510) move down in the hydraulic cylinder (507), inflate the clamping airbag (506) through the connecting pipe (508), use the clamping airbag (506) to fix the sample container, close the box door (12), and carry out microbial culture; S2. After the culture is completed, open the box door (12), control the piston plate (510) to rise, release the sample clamp, and then take out the sample for testing. After the test is completed, put the sample back into the placement slot (505) for clamping. S3. Next, start the motor (3) through the controller (8). The motor (3) drives the first bevel gear (4) to rotate. The first bevel gear (4) meshes and drives the second bevel gear (503) and the shaft (502) to rotate, so that the placement plate (504) rotates slowly. At the same time, connect the external pipe end (607) to the external nutrient solution or water supply device, start the electric push rod (601) to push the vertical rod (602) and the annular cavity (604) to move down to a suitable height. The nutrient solution or water is sprayed onto the sample from the nozzle (605) through the corrugated pipe (606) and the annular cavity (604). S4. During the descent of the annular cavity (604) driven by the electric push rod (601), the actuating rod (609) slides in the spiral groove (716) of the cylinder (715), causing the cylinder (715) and the large gear (714) to rotate. The large gear (714) meshes and drives the small gear (713) and the threaded rod (701) to rotate, causing the threaded sleeve (703) to drive the storage box (704) to rise. During the rising process, after the cover plate (705) comes into contact with the annular cavity (604), it is squeezed. At this time, the cover plate (705) will gradually cover the storage box (704). At the same time, the arc-shaped guide frame (707) slides along the guide post (708) to compress the spring (709). After the spraying is completed, the solenoid valve (11) is opened by the controller (8) to discharge the cleaning wastewater. Then, the electric push rod (601) is controlled to retract. At this time, the annular cavity (604) rises and releases the pressure on the cover plate (705). At this time, the storage box (704) descends, and the guide frame (707) opens the cover plate (705) under the action of the guide post (708), so that the disinfection lamp (706) can disinfect the inside of the incubator (1) and the sample.

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