A device and method for antibacterial cleaning of microbial culture dishes

Abstract

This invention relates to the field of microbial experimental equipment technology, specifically to a microbial culture dish antibacterial cleaning device and method. It mainly includes a sterilization and drying oven, with an antibacterial cleaning machine located on the back of the oven and a pushing mechanism on the top surface. The antibacterial cleaning machine contains multiple culture dishes with their openings facing downwards, arranged in a straight line. The cleaning head's mounting slide can slide radially along a mounting groove under centrifugal force. In conjunction with an electromagnetic telescopic rod, the cleaning shaft is raised and lowered via current adjustment, adjusting the contact state between the cleaning head and the inner wall of the culture dish. For culture dishes of different diameters, the extension length of the mounting slide changes synchronously with the centrifugal force, and the electromagnetic telescopic rod synchronously adjusts the height of the cleaning head. Size adaptation can be achieved without manual intervention, solving the cumbersome problem of manually replacing positioning components in existing equipment. Simultaneously, it ensures that the top brush, transition brush, and side brushes are always stably attached to the inner wall of the culture dish, improving adaptation flexibility and cleaning stability.

Description

Technical Field

[0001] This invention relates to the field of microbial experimental equipment technology, specifically to an antibacterial cleaning device and method for microbial culture dishes. Background Technology

[0002] In the field of microbiology experiments, petri dishes, as the core vessels for carrying microbial cultures, require rigorous cleaning and antibacterial treatment after use to prevent residual culture medium from breeding harmful bacteria and affecting the accuracy of subsequent experiments. Therefore, various antibacterial cleaning equipment for microbial petri dishes has emerged. Currently, most mainstream petri dish cleaning equipment on the market adopts a three-stage working structure of "positioning-cleaning-drying." Its core components include a positioning mechanism for fixing the petri dishes, a cleaning module for removing stains, and a drying system for drying. In actual use, the operator must first place the petri dishes to be cleaned one by one into the slots of the positioning plate, and clamp the side walls of the petri dishes with spring clips to prevent displacement during cleaning. Then, the cleaning module is activated, with a drive motor rotating an eccentric brush to wipe the inner wall of the petri dish. Simultaneously, a spray system delivers clean water or a cleaning solution containing antibacterial ingredients through pipes to rinse away the stains generated by the brush wiping, achieving initial cleaning. Finally, the drying system introduces hot air through water pipes to dry the cleaned petri dishes, completing the entire cleaning process.

[0003] However, existing antibacterial cleaning equipment for microbial culture dishes still has significant technical shortcomings in practical applications, particularly in terms of size adaptability and cleaning efficiency. Regarding size adaptability, the positioning mechanisms of existing equipment are mostly designed with fixed specifications, with fixed clamping distances of spring clamps and fixed slot sizes of the positioning disc, only suitable for culture dishes of a single diameter. However, in microbiological experiments, culture dishes come in various diameters, commonly 60mm, 90mm, and 150mm. When cleaning culture dishes of different sizes, operators must manually replace the corresponding positioning components. This is not only cumbersome but also prone to causing the culture dishes to become loosely fixed due to improper component replacement, leading to displacement under the impact of the cleaning solution and the rotation of the brush, resulting in incomplete cleaning or damage to the culture dishes. In terms of cleaning efficiency, the existing equipment has a low degree of automation. The loading and unloading of petri dishes still requires manual operation. Especially in batch cleaning scenarios, operators need to frequently place and remove petri dishes manually, which is time-consuming and labor-intensive. More importantly, the contact pressure between the brush and the petri dish is uncontrollable. If the preset pressure is too high, even with low-speed rotation, rigid contact can easily cause scratches and chipping on the inner wall of the glass petri dish. If the preset pressure is too low, the brush will not adhere tightly to the inner wall, and residual culture medium cannot be effectively removed, resulting in cleaning dead corners and requiring a longer cleaning time to clean thoroughly.

[0004] Therefore, there is an urgent need to design an antibacterial cleaning device for microbial culture dishes to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an antibacterial cleaning device and method for microbial culture dishes, so as to solve the problems of poor size adaptability and low cleaning efficiency of existing equipment mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A microbial culture dish antibacterial cleaning device includes: a sterilization and drying oven, an antibacterial cleaning machine on the back of the sterilization and drying oven, a pushing mechanism on the top surface of the sterilization and drying oven, multiple culture dishes with downward-facing openings inside the antibacterial cleaning machine arranged in a straight line, the pushing mechanism intermittently pushing the culture dishes arranged in a straight line to move synchronously and enter the antibacterial cleaning machine one by one, the single movement distance being equal to the diameter of a single culture dish, a driving mechanism inside the antibacterial cleaning machine, a cleaning head on the top of the driving mechanism, the cleaning head aligning with the opening of a culture dish and spraying water into it to rinse the inner wall of the culture dish, a traversing mechanism at the bottom of the driving mechanism, the traversing mechanism inserting the cleaning head into the culture dish through the driving mechanism, the driving mechanism rotating the cleaning head, the cleaning head unfolding under centrifugal force to clean the inner wall of the culture dish, a fixing structure above the culture dish aligned with the cleaning head, the fixing structure fixing the culture dish aligned with the cleaning head, the culture dish will not shift during rinsing and cleaning under the fixing structure.

[0008] Preferably, the antibacterial cleaning machine includes a cleaning flat box, which is fixedly connected to the surface of the sterilization and drying box. Cleaning openings are provided at the bottom of both ends of the cleaning flat box. Receiving slots are movably inserted into the interior of both cleaning openings. A dividing boss located in the middle is fixedly installed on the bottom surface of the inner cavity of the cleaning flat box. The end face of the receiving slot located inside the cleaning flat box abuts against the side of the dividing boss. A diverting cap is fixedly connected to the top surface of the dividing boss. The edge of the slot at the inner end of the receiving slot located inside the cleaning flat box is below the diverting cap, and the end face of this end abuts against the side of the dividing boss.

[0009] An isolation plate is fixedly installed on the inner wall of the cleaning box. Multiple parallel drainage holes are opened at both ends of the top surface of the isolation plate. A functional box is fixedly installed in the middle of the top surface of the isolation plate. The fixed structure is installed in the functional box. A cleaning opening is opened on the bottom surface of the inner cavity of the functional box. The bottom end of the cleaning opening penetrates the isolation plate downward. Multiple parallel grid strips are fixedly connected to the inner wall of the cleaning opening. The top surface of the grid strips is flush with the bottom surface of the inner cavity of the functional box. A narrow hole is formed between two adjacent grid strips. A receiving short tube is provided in the middle of the cleaning opening. The top surface of the receiving short tube is flush with the top surface of the grid strip. The cleaning head is movably inserted into the inside of the receiving short tube. The grid strips are fixedly connected to the surface of the receiving short tube. A guide tube is fixedly connected to the bottom end of the receiving short tube.

[0010] Preferably, both sides of the functional box are provided with conveying holes at their bottom ends. The inner wall of the conveying holes is flush with the inner wall of the functional box. Both sides of the inner cavity of the conveying hole near the feeding side of the culture dish to be cleaned are fixedly connected with centering paddles. The end of the centering paddle away from the inner wall of the conveying hole extends toward the central axis of the inner cavity of the functional box. The horizontal distance between the surface of the centering paddle and the inner wall of the functional box gradually increases along the extension direction.

[0011] A control panel is fixedly connected to the surface of the functional box near the sterilization and drying box. An inspection cover is bolted to the top surface of the functional box. Two collection tanks are placed on the top surface of the isolation plate. The two collection tanks are located on both sides of the functional box and are inserted into the cleaning flat box. The end of the collection tank near the functional box has an opening channel. The inner wall of the opening channel is flush with the inner wall of the collection tank. The opening channel is connected to the conveying hole. The inner width of the collection tank closer to the centering lever is slightly larger than the diameter of the petri dish. The inner wall of the other collection tank is flush with the inner wall of the conveying hole. A narrow discharge hole is opened on the bottom surface of the inner cavity of the collection tank. The narrow discharge hole is aligned with the drainage hole. Multiple petri dishes are arranged in a row with their openings facing down on the bottom surface of the inner cavity of the collection tank. Both ends of the cleaning flat box have insertion notches at their top. The bottom surface of the insertion notch is flush with the top surface of the isolation plate.

[0012] Preferably, the pushing mechanism includes an electric telescopic rod, which is fixedly installed on the top surface of the sterilization and drying oven. A pushing slider is fixedly connected to the end of the electric telescopic rod. A rectangular insertion hole is opened on the pushing slider. A pushing plate is slidably inserted into the rectangular insertion hole. The bottom end of the pushing plate is movably inserted into the collection tank closer to the centering lever and contacts the petri dish. A limit baffle is fixedly connected to the top surface of the pushing plate.

[0013] Preferably, the drive mechanism includes a drive motor, which is bolted to the bottom surface of the isolation plate. A drive wheel is fixedly sleeved on the output shaft of the drive motor. The drive wheel is connected to a driven wheel via a drive belt. A cleaning shaft is inserted into the driven wheel. The bottom end of the cleaning shaft is rotatably inserted into the top surface of the diverter cap. A cleaning head is fixedly installed on the top end of the cleaning shaft.

[0014] Preferably, the cleaning head includes a cleaning disc, which is fixedly connected to the top of the cleaning shaft and movably inserted into the receiving short tube. Two mounting grooves are opened on the top surface of the cleaning disc. One end of the mounting groove is open and the opening is located on the side of the cleaning disc. The openings of the two mounting grooves face opposite directions. A mounting strip is slidably inserted into the mounting groove. A snap-fit ​​groove is opened on the side of the mounting strip. A snap-fit ​​rail is fixedly connected to the inner wall of the mounting groove. The snap-fit ​​rail is slidably inserted into the snap-fit ​​groove. A cylindrical cavity is opened on the end face of the mounting strip located inside the mounting groove. A return spring is movably inserted into the cylindrical cavity. One end of the return spring is fixedly connected to the end face of the inner cavity of the cylindrical cavity. The other end of the return spring is fixedly connected to the end face of the inner cavity of the mounting groove. An arc transition surface is provided at the corner between the other end face of the mounting strip and its top surface. A top brush is provided on the top surface of the mounting strip. A transition brush is provided on the arc transition surface. A side brush is provided on the end face of the mounting strip.

[0015] Both the cleaning shaft and the cleaning disc are hollow and their internal cavities are interconnected. The top surface of the cleaning disc has two chamfered bevels, and the boundary line between the chamfered bevels and the top surface of the cleaning disc is parallel to the mounting groove. The top surface of the cleaning disc and the chamfered bevels are provided with flushing holes that communicate with the inner cavity of the cleaning disc. The dividing boss is hollow, and the cleaning shaft communicates with the inner cavity of the dividing boss. An infusion tube is inserted into the surface of the dividing boss and communicates with the inner cavity of the dividing boss. One end of the infusion tube extends to the outside of the cleaning flat box and is fixedly installed with an electromagnetic water valve.

[0016] Preferably, the axial movement mechanism includes a fixed sleeve, a lifting bearing, and a U-shaped bracket. The fixed sleeve is slidably sleeved on the outside of the cleaning shaft, and the gap between the fixed sleeve and the cleaning shaft is sealed by a rubber ring. The fixed sleeve is fixedly inserted into the diverter cap and communicates with the inner cavity of the dividing boss. The lifting bearing is fixedly sleeved on the outside of the cleaning shaft. A lifting arm is fixedly connected to the side of the lifting bearing. An electromagnetic telescopic rod is fixedly connected to the bottom surface of the lifting arm. The bottom end of the electromagnetic telescopic rod is fixedly connected to the top surface of the diverter cap. The U-shaped bracket is fixedly connected to the bottom surface of the isolation plate. A long-necked internal toothed tube is rotatably inserted into the U-shaped bracket. The long-necked internal toothed tube is fixedly inserted into the driven wheel. A long-necked external toothed tube is movably inserted into the long-necked internal toothed tube. The long-necked external toothed tube meshes with the long-necked internal toothed tube and is fixedly sleeved on the outside of the cleaning shaft.

[0017] Preferably, the fixing structure includes a fixed partition, which is fixedly connected to the inner wall of the functional box. A control module is fixedly installed at one end of the top surface of the fixed partition and is electrically connected to the control panel. A vacuum pump is fixedly installed at the other end of the top surface of the fixed partition. A constant pressure hose is connected to the top surface of the vacuum pump. A three-way solenoid valve is installed on the constant pressure hose. A constant pressure rigid pipe is fixedly connected to the other end of the constant pressure hose. A load-bearing disc is fixedly connected to the top of the constant pressure rigid pipe. An anti-rotation slide bar is fixedly connected to the bottom surface of the load-bearing disc and is fixedly connected to the surface of the constant pressure rigid pipe. An anti-rotation through hole is provided on the top. The constant pressure rigid tube and the anti-rotation slide are movably inserted into the anti-rotation through hole. A lifting spring is sleeved on the outside of the constant pressure rigid tube. The top of the lifting spring is fixedly connected to the bottom surface of the bearing disc, and the bottom of the lifting spring is fixedly connected to the top surface of the fixed partition. A pressure block is fixedly connected to the bottom of the constant pressure rigid tube. An installation through hole is provided in the middle of the pressure block. A positioning bracket is fixedly connected to the inner wall of the installation through hole. A butt joint is inserted into the installation through hole with an interference fit. A negative pressure suction cup is connected to the end of the butt joint. The negative pressure suction cup is connected to the constant pressure flexible tube through the butt joint, the installation through hole, and the constant pressure rigid tube.

[0018] An electromagnet is fixedly inserted into the fixed partition, and a high-pressure disk aligned with the electromagnet is fixedly connected to the pressure block.

[0019] Preferably, the bottom surface of the pressure block has four calibration grooves, which are located at the four ends of the two diagonals of the bottom surface of the pressure block. The end face of the inner cavity of the calibration groove has a negative pressure chamber. The inner wall of the mounting through hole has a constant pressure hole communicating with the negative pressure chamber. A traction spring is movably inserted into the negative pressure chamber. One end of the traction spring abuts against the end face of the inner cavity of the negative pressure chamber, and the other end of the traction spring is fixedly connected to a conversion plug. The conversion plug is slidably inserted into the inside of the negative pressure chamber. The other end face of the conversion plug is fixedly connected to a conversion slide rod located in the middle. The other end of the conversion slide rod extends into the calibration groove and is fixedly connected to a calibration clamp. A straightening rod is fixedly connected to the surface of the calibration clamp near the conversion slide rod. A straightening channel is opened on the end face of the inner cavity of the calibration groove. The straightening rod is slidably inserted into the straightening channel. The end of the calibration clamp extends out of the calibration groove. A snap-fit ​​chamfer groove is opened on the surface of the calibration clamp near the mounting through hole. The snap-fit ​​chamfer groove is adapted to the corner of the outer side of the petri dish.

[0020] Preferably, a method for antibacterial cleaning of microbial culture dishes includes the following steps:

[0021] Step 1: Place multiple petri dishes in a row and invert them inside a collection tank. Then, insert the collection tank into the cleaning flat box and place it on the top surface of the isolation plate near the centering lever. Next, push the collection tank into the function box so that the end face of the collection tank abuts against the surface of the function box.

[0022] The second step is to extend the electric telescopic rod until the petri dishes are positioned between the push slider and the functional box. Then, insert the push plate into the rectangular socket and then shorten the electric telescopic rod until the push plate touches the surface of the petri dish.

[0023] Third step: Then input the petri dish diameter parameter through the control panel, then start the cleaning process through the control panel, and then automatically complete the cleaning of the petri dish. After cleaning, the petri dish is placed in the collection tank on the other side of the function box.

[0024] Step 4: Use a collection tank to transfer the cleaned petri dishes to a sterilization and drying oven for sterilization and drying.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] The mounting slide of the cleaning head can slide radially along the mounting groove under centrifugal force. In conjunction with the electromagnetic telescopic rod, the lifting and lowering of the cleaning shaft is controlled by current adjustment to adjust the contact state between the cleaning head and the inner wall of the culture dish. For culture dishes of different diameters, the extension length of the mounting slide changes synchronously with the centrifugal force, and the electromagnetic telescopic rod adjusts the height of the cleaning head synchronously. Size adaptation can be completed without manual intervention, solving the cumbersome problem of manually replacing the positioning components in existing equipment. At the same time, it ensures that the top brush, transition brush, and side brush are always stably attached to the inner wall of the culture dish, improving the adaptation flexibility and cleaning stability.

[0027] The electric telescopic rod automatically pushes the petri dishes into the cleaning station according to preset parameters, eliminating the need for manual placement. The hollow brush shaft of the cleaning head is connected to the cleaning disc with antibacterial rinsing solution, which forms a multi-directional spray through the rinsing holes on the top surface and chamfered slope. This, combined with the rotating top brush, transition brush, and side brush, cleans simultaneously, covering the top surface, corners, and side walls of the petri dish cavity, eliminating dead corners that are difficult to clean with traditional equipment. The automated supply and composite cleaning work together to reduce manual intervention, significantly shorten the cleaning cycle, and improve processing capacity.

[0028] When the electromagnet is energized, it pushes the pressure block downward through the strong disk, causing the negative pressure suction cup to adhere to the top surface of the culture dish and complete the initial fixation. The vacuum pump creates a pressure difference in the negative pressure chamber where the calibration clamp is located through the constant pressure pipeline, driving the calibration clamp to move closer to the corner of the culture dish, and the chamfered groove is matched with the corner of the outer side of the culture dish and a calibration force is applied, adjusting the culture dish to a position coaxial with the cleaning head. The combination of double fixation and calibration structure effectively prevents the culture dish from shifting due to rinsing pressure and cleaning rotation force, ensuring that the cleaning head always runs along the central axis of the culture dish, improving the stability and uniformity of the cleaning process. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0030] Figure 2 For the present invention Figure 1 A schematic diagram of the split structure;

[0031] Figure 3 For the present invention Figure 1 A schematic diagram of the disassembled structure of the antibacterial cleaning machine;

[0032] Figure 4 For the present invention Figure 2 A three-dimensional structural diagram of the cleaning flat box;

[0033] Figure 5 For the present invention Figure 2 A three-dimensional structural diagram of the central functional box;

[0034] Figure 6 For the present invention Figure 2 A three-dimensional structural diagram of the collection tank;

[0035] Figure 7 For the present invention Figure 1 A schematic diagram of the split structure of the push mechanism;

[0036] Figure 8 For the present invention Figure 3 A three-dimensional structural diagram of the central drive mechanism;

[0037] Figure 9 For the present invention Figure 8 A schematic diagram of the disassembled structure of the cleaning head;

[0038] Figure 10 For the present invention Figure 9 A three-dimensional structural diagram of the sliding bar installation;

[0039] Figure 11 For the present invention Figure 2 A three-dimensional structural diagram of the fixed structure in the middle;

[0040] Figure 12 For the present invention Figure 11 A schematic diagram of the disassembled structure of the central pressure block;

[0041] Figure 13 For the present invention Figure 5 The diagram shows the structural positions of the grid bars, cleaning openings, and narrow holes.

[0042] In the picture:

[0043] 1. Sterilization and drying oven;

[0044] 2. Antibacterial cleaning machine; 201. Cleaning flat box; 202. Cleaning opening; 203. Receiving tank; 204. Dividing boss; 205. Diverting cap; 206. Isolation plate; 207. Drainage elongated hole; 208. Function box; 209. Cleaning opening; 210. Grille bar; 211. Narrow elongated hole; 212. Receiving short tube; 213. Guide cone; 214. Conveying hole; 215. Centering lever; 216. Control panel; 217. Inspection cover; 218. Collection tank; 219. Petri dish; 220. Opening channel; 221. Material discharge elongated hole; 222. Insertion notch;

[0045] 3. Pushing mechanism; 301. Electric telescopic rod; 302. Pushing slider; 303. Rectangular insertion hole; 304. Pushing insert plate; 305. Limiting baffle;

[0046] 4. Drive mechanism; 401. Drive motor; 402. Drive wheel; 403. Drive belt; 404. Driven wheel; 405. Cleaning brush shaft;

[0047] 5. Cleaning head; 501. Cleaning disc; 502. Installing slide rail; 503. Installing slide bar; 504. Snap-fit ​​slide rail; 505. Snap-fit ​​track; 506. Cylindrical cavity; 507. Return spring; 508. Top brush; 509. Transition brush; 510. Side brush; 511. Chamfered bevel; 512. Flushing hole; 513. Infusion tube; 514. Solenoid water valve;

[0048] 6. Moving mechanism; 601. Fixed sleeve; 602. Lifting bearing; 603. Lifting lever arm; 604. Electromagnetic telescopic rod; 605. U-shaped bracket; 606. Long-necked internal toothed tube; 607. Long-necked external toothed tube;

[0049] 7. Fixed structure; 701. Fixed partition; 702. Control module; 703. Vacuum pump; 704. Constant pressure hose; 705. Three-way solenoid valve; 706. Constant pressure rigid pipe; 707. Load-bearing disc; 708. Anti-rotation slide bar; 709. Anti-rotation through hole; 710. Lifting spring; 711. Pressure block; 712. Mounting through hole; 713. Positioning bracket; 714. Connecting joint; 715. Negative pressure suction cup; 716. Calibration slide; 717. Straightening channel; 718. Constant pressure hole; 719. Traction spring; 720. Converting plug; 721. Converting slide rod; 722. Calibration clamp; 723. Straightening rod; 724. Negative pressure chamber; 725. Chamfered groove; 726. Electromagnet; 727. Power disk. Detailed Implementation

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0051] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0052] like Figures 1-13 As shown, this application provides a microbial culture dish antibacterial cleaning device, including: a sterilization and drying oven 1, an antibacterial cleaning machine 2 on the back of the sterilization and drying oven 1, a pushing mechanism 3 on the top surface of the sterilization and drying oven 1, and multiple culture dishes 219 with their openings facing downwards arranged in a straight line inside the antibacterial cleaning machine 2. The pushing mechanism 3 intermittently pushes the culture dishes 219 arranged in a straight line to move synchronously and enter the antibacterial cleaning machine 2 one by one. The distance of a single movement is equal to the diameter of a single culture dish 219. A drive mechanism 4 is provided inside the antibacterial cleaning machine 2, and a cleaning head 5 is provided on the top of the drive mechanism 4. The cleaning head 5 is aligned with the opening of a culture dish 219 and sprays water into it to rinse the inner wall of the culture dish 219. The bottom of the drive mechanism 4 is provided with a moving mechanism 6. The moving mechanism 6 carries the cleaning head 5 into the culture dish 219 through the drive mechanism 4. The drive mechanism 4 rotates the cleaning head 5, and the cleaning head 5 unfolds under the action of centrifugal force to clean the inner wall of the culture dish 219. A fixing structure 7 is provided above the culture dish 219 that the cleaning head 5 is aligned with. The fixing structure 7 fixes the culture dish 219 that the cleaning head 5 is aligned with, and the culture dish 219 will not shift during rinsing and cleaning under the fixing action of the fixing structure 7.

[0053] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The antibacterial cleaning machine 2 includes a cleaning flat box 201, which is fixedly connected to the surface of the sterilization and drying box 1. Cleaning openings 202 are provided at the bottom of both ends of the cleaning flat box 201. Receiving slots 203 are movably inserted into the interior of both cleaning openings 202. A dividing boss 204 is fixedly installed on the bottom surface of the inner cavity of the cleaning flat box 201. The end face of the receiving slot 203 inside the cleaning flat box 201 abuts against the side of the dividing boss 204. A diverting cap 205 is fixedly connected to the top surface of the dividing boss 204. The edge of the slot on the receiving slot 203 located at the inner end of the cleaning flat box 201 is located below the diverting cap 205 and the end face of this end abuts against the side of the dividing boss 204.

[0054] Both ends of the diversion cap 205 are inclined surfaces, which are used to guide the cleaning wastewater and prevent the cleaning wastewater from stagnating on the top surface of the diversion cap 205.

[0055] A partition plate 206 is fixedly installed on the inner wall of the cleaning flat box 201, with multiple parallel drainage holes 207 at both ends of the top surface of the partition plate 206. A functional box 208 is fixedly installed in the middle of the top surface of the partition plate 206, and a fixing structure 7 is installed inside the functional box 208. A cleaning opening 209 is opened on the bottom surface of the inner cavity of the functional box 208, with the bottom end of the cleaning opening 209 penetrating the partition plate 206. Multiple parallel drainage holes 207 are fixedly connected to the inner wall of the cleaning opening 209. Parallel grid strips 210, the top surface of grid strips 210 is flush with the bottom surface of the inner cavity of functional box 208, and a narrow hole 211 is formed between two adjacent grid strips 210. A receiving short tube 212 is provided in the middle of the cleaning opening 209. The top surface of the receiving short tube 212 is flush with the top surface of grid strip 210. The cleaning head 5 is movably inserted into the inside of the receiving short tube 212. The grid strips 210 and the surface of the receiving short tube 212 are fixedly connected. The bottom end of the receiving short tube 212 is fixedly connected to the guide tube 213.

[0056] The guide tube 213 guides the cleaning wastewater to prevent it from contaminating the drive mechanism 4 and the traversing mechanism 6.

[0057] The extension direction of the drainage elongated hole 207 and the narrow elongated hole 211 is consistent with the length extension direction of the partition plate 206.

[0058] Both sides of the functional box 208 are provided with conveying holes 214 at their bottom ends. The inner wall of the conveying holes 214 is flush with the inner wall of the functional box 208. The two sides of the inner cavity of the conveying holes 214 near the feeding side of the culture dish 219 to be cleaned are fixedly connected with centering levers 215. The end of the centering lever 215 away from the inner wall of the conveying holes 214 extends toward the central axis of the inner cavity of the functional box 208. The horizontal distance between the surface of the centering lever 215 and the inner wall of the functional box 208 gradually increases along this extension direction.

[0059] By tilting the centering lever 215 and applying its own elasticity to the culture dish 219, the position of the culture dish 219 is finely adjusted so that the culture dish 219 can be in the middle position after entering the functional box 208, ensuring that the cleaning head 5 and the fixing structure 7 are aligned with the culture dish 219.

[0060] A control panel 216 is fixedly connected to the surface of the function box 208 near the sterilization and drying oven 1. An inspection cover 217 is bolted to the top surface of the function box 208. Two collection tanks 218 are placed on the top surface of the isolation plate 206, located on opposite sides of the function box 208. The collection tanks 218 are inserted into the cleaning flat box 201. An opening channel 220 is provided at the end of the collection tank 218 near the function box 208. The inner wall of the opening channel 220 is flush with the inner wall of the collection tank 218. The opening channel 220 connects to the conveying hole 214. The inner width of the collection tank 218 near the centering lever 215 is slightly larger than the diameter of the petri dish 219. The inner wall of another collection tank 218 is flush with the inner wall of the conveying hole 214. A narrow discharge hole 221 is opened on the bottom surface of the inner cavity of the collection tank 218. The narrow discharge hole 221 is aligned with the drain hole 207. Multiple petri dishes 219 are arranged in a straight line with their openings facing down on the bottom surface of the inner cavity of the collection tank 218. Both ends of the washing flat box 201 are provided with insertion notches 222 located at their top. The bottom surface of the inner cavity of the insertion notch 222 is flush with the top surface of the partition plate 206.

[0061] The collection tank 218 holds the culture dishes 219, which makes it convenient for people to quickly fill the culture dishes 219 to be cleaned and disassemble the cleaned culture dishes 219, thus helping to increase cleaning efficiency.

[0062] Please see Figure 1 and Figure 7 The pushing mechanism 3 includes an electric telescopic rod 301, which is fixedly installed on the top surface of the sterilization and drying oven 1. A pushing slider 302 is fixedly connected to the end of the electric telescopic rod 301. A rectangular insertion hole 303 is provided on the pushing slider 302. A pushing plate 304 is slidably inserted into the rectangular insertion hole 303. The bottom end of the pushing plate 304 is movably inserted into the collection tank 218, which is closer to the centering lever 215, and is in contact with the petri dish 219. A limit baffle 305 is fixedly connected to the top surface of the pushing plate 304.

[0063] The distance parameter of a single retraction of the electric telescopic rod 301 can be set through the control panel 216, so that the single retraction distance of the electric telescopic rod 301 is consistent with the diameter of the culture dish 219. When the electric telescopic rod 301 retracts, it will push the push plate 304 closer to the function box 208 through the push slider 302 and the rectangular insertion hole 303. The push plate 304 pushes the culture dish 219 into the function box 208, thereby achieving the purpose of automatically feeding the culture dish 219, reducing human intervention, and saving more time and effort.

[0064] Please see Figure 3 and Figure 8The drive mechanism 4 includes a drive motor 401, which is bolted to the bottom surface of the isolation plate 206. A drive wheel 402 is fixedly sleeved on the output shaft of the drive motor 401. The drive wheel 402 is connected to a driven wheel 404 via a drive belt 403. A cleaning shaft 405 is inserted into the driven wheel 404. The bottom end of the cleaning shaft 405 is rotatably inserted into the top surface of the diverter cap 205. The cleaning head 5 is fixedly installed on the top end of the cleaning shaft 405.

[0065] The drive motor 401 is controlled by the control panel 216. The drive motor 401 drives the cleaning shaft 405 to rotate through the drive wheel 402, drive belt 403, and driven wheel 404. The cleaning shaft 405 drives the cleaning head 5 to rotate, and the cleaning head 5 cleans the petri dish 219.

[0066] Please see Figure 8 , Figure 9 and Figure 10 The cleaning head 5 includes a cleaning disc 501, which is fixedly connected to the top of the cleaning shaft 405 and movably inserted into the receiving short tube 212. Two mounting grooves 502 are formed on the top surface of the cleaning disc 501. One end of each mounting groove 502 is open and located on the side of the cleaning disc 501. The openings of the two mounting grooves 502 face opposite directions. A mounting slide 503 is slidably inserted into the mounting groove 502. A snap-fit ​​groove 504 is formed on the side of the mounting slide 503. A snap-fit ​​rail 505 is fixedly connected to the inner wall of the mounting groove 502 and slidably inserted into the snap-fit ​​groove. Inside 504, a cylindrical cavity 506 is formed on the end face of the mounting slide 503 located inside the mounting groove 502. A return spring 507 is movably inserted into the cylindrical cavity 506. One end of the return spring 507 is fixedly connected to the end face of the inner cavity of the cylindrical cavity 506, and the other end of the return spring 507 is fixedly connected to the end face of the inner cavity of the mounting groove 502. A rounded transition surface is provided at the corner between the other end face of the mounting slide 503 and its top surface. A top brush 508 is provided on the top surface of the mounting slide 503, a transition brush 509 is provided on the rounded transition surface, and a side brush 510 is provided on the end face of the mounting slide 503.

[0067] By rapidly rotating the cleaning head 5, the mounting slide 503 moves radially outward under centrifugal force to accommodate culture dishes 219 of different diameters. Furthermore, the contact pressure between the side brush 510 and the inner wall of the culture dish 219 can be controlled by adjusting the rotation speed of the cleaning head 5 to avoid adverse effects caused by excessive or insufficient contact pressure. The transition brush 509 can clean the inner corners of the culture dish 219 more thoroughly.

[0068] Please see Figure 3 , Figure 8 and Figure 9The cleaning shaft 405 and the cleaning disc 501 are both hollow and their internal cavities are interconnected. The top surface of the cleaning disc 501 has two chamfered bevels 511. The boundary line between the chamfered bevels 511 and the top surface of the cleaning disc 501 is parallel to the mounting groove 502. The top surface of the cleaning disc 501 and the surface of the chamfered bevels 511 are provided with flushing holes 512 that communicate with the inner cavity of the cleaning disc 501. The dividing boss 204 is hollow. The cleaning shaft 405 communicates with the inner cavity of the dividing boss 204. An infusion tube 513 is inserted into the surface of the dividing boss 204. The infusion tube 513 communicates with the inner cavity of the dividing boss 204. One end of the infusion tube 513 extends to the outside of the cleaning flat box 201 and is fixedly installed with an electromagnetic water valve 514.

[0069] The infusion tube 513 is connected to an external antibacterial flushing pump.

[0070] The electromagnetic water valve 514 is controlled by the control panel 216. It can spray water into the top surface of the inner cavity of the culture dish 219 through the rinsing hole 512 on the top of the cleaning plate 501, and can spray water at an angle through the rinsing hole 512 on the chamfered slope 511, thereby increasing the water rinsing surface, improving the rinsing effect, and thus increasing the rinsing efficiency.

[0071] Please see Figure 2 and Figure 8 The agitation mechanism 6 includes a fixed sleeve 601, a lifting bearing 602, and a U-shaped bracket 605. The fixed sleeve 601 is slidably sleeved on the outside of the cleaning shaft 405, and the gap between the fixed sleeve 601 and the cleaning shaft 405 is sealed by a rubber ring. The fixed sleeve 601 is fixedly inserted into the diverter cap 205 and communicates with the inner cavity of the dividing boss 204. The lifting bearing 602 is fixedly sleeved on the outside of the cleaning shaft 405, and a lifting arm 603 is fixedly connected to the side of the lifting bearing 602. The bottom surface of the lifting arm 603 is fixedly connected to... An electromagnetic telescopic rod 604 is attached, with its bottom end fixedly connected to the top surface of the diverter cap 205. A U-shaped bracket 605 is fixedly connected to the bottom surface of the isolation plate 206. A long-necked internal toothed tube 606 is rotatably inserted into the U-shaped bracket 605. The long-necked internal toothed tube 606 is fixedly inserted into the driven wheel 404. A long-necked external toothed tube 607 is movably inserted into the long-necked internal toothed tube 606. The long-necked external toothed tube 607 meshes with the long-necked internal toothed tube 606 and is fixedly sleeved on the outside of the cleaning shaft 405.

[0072] The electromagnetic telescopic rod 604 is controlled by the control panel 216. The control panel 216 adjusts the input current to change the extension length and thrust of the electromagnetic telescopic rod 604, which is used to control the contact pressure between the top brush 508 and the top surface of the inner cavity of the culture dish 219, so as to avoid adverse effects caused by excessive or insufficient contact pressure.

[0073] Please see Figure 2 , Figure 11 and Figure 12The fixed structure 7 includes a fixed partition 701, which is fixedly connected to the inner wall of the functional box 208. A control module 702 is fixedly installed at one end of the top surface of the fixed partition 701 and is electrically connected to the control panel 216. A vacuum pump 703 is fixedly installed at the other end of the top surface of the fixed partition 701. The vacuum pump 703 contains a constant pressure vacuum tank. A constant pressure hose 704 is connected to the top surface of the vacuum pump 703. A three-way solenoid valve 705 is installed on the constant pressure hose 704. A constant pressure rigid pipe 706 is fixedly connected to the other end of the constant pressure hose 704. A load-bearing disc 707 is fixedly connected to the top of the constant pressure rigid pipe 706. An anti-rotation slide bar 708 is fixedly connected to the bottom surface of the load-bearing disc 707 and is fixedly connected to the surface of the constant pressure rigid pipe 706. The fixed partition 701 has openings... An anti-rotation through hole 709, a constant pressure rigid tube 706, and an anti-rotation slide bar 708 are movably inserted into the anti-rotation through hole 709 to restrict the rotation of the constant pressure rigid tube 706. A lifting spring 710 is sleeved on the outside of the constant pressure rigid tube 706. The top end of the lifting spring 710 is fixedly connected to the bottom surface of the load-bearing disc 707, and the bottom end of the lifting spring 710 is fixedly connected to the top surface of the fixed partition 701. A pressure block 711 is fixedly connected to the bottom end of the constant pressure rigid tube 706. An installation through hole 712 is opened in the middle of the pressure block 711. A positioning bracket 713 is fixedly connected to the inner wall of the installation through hole 712. A connector 714 is inserted into the installation through hole 712 with an interference fit. A negative pressure suction cup 715 is connected to the end of the connector 714. The negative pressure suction cup 715 is connected to the constant pressure hose 704 through the connector 714, the installation through hole 712, the constant pressure rigid tube 706, and the constant pressure hose 704.

[0074] The control panel 216 can configure the control module 702. All electrical devices are electrically connected to the control module 702, and the control panel 216 controls all electrical devices through the control module 702.

[0075] The vacuum pump 703 generates negative pressure inside the negative pressure suction cup 715 to achieve vacuum adsorption, which is used to fix the culture dish 219.

[0076] The control module 702 has preset parameters for cleaning culture dishes 219 of different diameters.

[0077] An electromagnet 726 is fixedly inserted into the fixed partition 701, and a high-pressure disk 727 aligned with the electromagnet 726 is fixedly connected to the pressure block 711.

[0078] The electromagnet 726 applies a pushing force to the strong disk 727, causing the pressure block 711 to move downward, thereby causing the negative pressure suction cup 715 to press against the top surface of the culture dish 219, achieving the effect of vacuum adsorption, which is used to fix the culture dish 219.

[0079] The pressure block 711 has four calibration grooves 716 on its bottom surface, located at the four ends of the two diagonals of the bottom surface. A negative pressure chamber 724 is formed on the end face of the inner cavity of each calibration groove 716. A constant pressure hole 718 communicating with the negative pressure chamber 724 is formed on the inner wall of the mounting through hole 712. A traction spring 719 is movably inserted into the negative pressure chamber 724. One end of the traction spring 719 abuts against the end face of the inner cavity of the negative pressure chamber 724, and the other end of the traction spring 719 is fixedly connected to a conversion plug 720. The conversion plug 720 is slidably inserted into the inside of the negative pressure chamber 724, and the other end face of the conversion plug 720 is fixedly connected to a positioning device. The conversion slide bar 721 is located in the middle. The other end of the conversion slide bar 721 extends into the calibration slide groove 716 and is fixedly connected to the calibration clamp 722. The calibration clamp 722 is fixedly connected to the surface of the conversion slide bar 721. The calibration slide groove 716 has a calibration channel 717 on the end face of the inner cavity. The calibration clamp 723 is slidably inserted into the calibration channel 717. The end of the calibration clamp 722 extends out of the calibration slide groove 716. The calibration clamp 722 has a chamfered groove 725 at its end on the surface of the calibration clamp 722 near the mounting through hole 712. The chamfered groove 725 is adapted to the corner of the outer side of the petri dish 219.

[0080] The calibration clamp 722 is moved towards the mounting through hole 712 by the negative pressure drive, so that the snap-fit ​​chamfered groove 725 is snapped onto the corner of the culture dish 219, and a calibration thrust is applied to the culture dish 219 to push the culture dish 219 to the position aligned with the negative pressure suction cup 715 and the cleaning head 5, so as to ensure that the cleaning head 5 can operate smoothly.

[0081] A method for antibacterial cleaning of microbial culture dishes includes the following steps:

[0082] First, place multiple petri dishes 219 in a line and invert them inside a collection tank 218. Then, insert the collection tank 218 into the cleaning flat box 201 and place it on the top surface of the isolation plate 206 near the centering lever 215. Next, push the collection tank 218 into the function box 208 so that the end face of the collection tank 218 abuts against the surface of the function box 208.

[0083] The second step is to extend the electric telescopic rod 301 until the petri dish 219 is located between the push slider 302 and the function box 208. Then, insert the push plate 304 into the rectangular socket 303, and then shorten the electric telescopic rod 301 until the push plate 304 abuts against the surface of the petri dish 219.

[0084] Third step: Then input the diameter parameter of the culture dish 219 through the control panel 216, then start the cleaning work through the control panel 216, and then automatically complete the cleaning of the culture dish 219. The cleaned culture dish 219 is placed in the collection tank 218 on the other side of the function box 208.

[0085] Step 4: Use collection tank 218 to transfer the cleaned petri dishes 219 to sterilization and drying oven 1 for sterilization and drying.

[0086] Working principle

[0087] First, multiple petri dishes 219 are arranged in a row and inverted inside the collection tank 218 near the centering lever 215. Then, the collection tank 218 is inserted into the cleaning flat box 201 and placed on the top surface of the isolation plate 206 near the centering lever 215. Next, the collection tank 218 is pushed towards the function box 208 so that the end face of the collection tank 218 abuts against the surface of the function box 208. Then, the electric telescopic rod 301 is extended by controlling the control panel 216. The electric telescopic rod 301, along with the push slider 302, gradually moves away from the function box 208 until all the petri dishes 219 are located between the push slider 302 and the function box 208. Then, the push plate 304 is inserted into the rectangular insertion hole 303, and the limiting baffle 305 rests on the top surface of the push slider 302. Then, the electric telescopic rod 301 is shortened by controlling the control panel 216. The electric telescopic rod 301 then pushes the culture dish 219 into the functional box 208 via the push slider 302, rectangular insertion hole 303, and push plate 304. Next, the culture dish 219 inside the collection tank 218 near the centering lever 215 slides into the functional box 208 through the opening channel 220 and conveying hole 214. Then, the culture dish 219 at the forefront of the movement contacts the centering lever 215, and then the culture dish 219 squeezes the centering lever 215. The centering lever 215 then elastically deforms and applies a displacement force to the culture dish 219. Under the action of the displacement force, the culture dish 219 is shifted to the central axis position on the bottom surface of the functional box 208. Then, the culture dish... The culture dish 219 separates from the centering lever 215. The forwardmost culture dish 219 then moves above the receiving short tube 212. The control panel 216 then stops the electric telescopic lever 301. The diameter parameter of the culture dish 219 is input via the control panel 216. The control module 702 selects the cleaning parameters based on the diameter parameter of the culture dish 219. The control panel 216 then energizes the electromagnet 726, which applies a magnetic repulsive force to the high-pressure disk 727. Under this magnetic repulsive force, the high-pressure disk 727 moves downwards along with the pressure block 711. The pressure block 711 then pulls the load-bearing disc 707 downwards via the constant-pressure rigid tube 706. The load-bearing disc 707 compresses the lifting spring 710, thus lifting the disc. Spring 710 is elastically compressed, increasing its elastic potential energy. Then, pressure block 711, carrying negative pressure suction cup 715, gently presses against the top surface of culture dish 219. Negative pressure suction cup 715 then adheres to the top surface of culture dish 219. Next, control panel 216 controls the three-way solenoid valve 705 to open, causing the pressure inside constant pressure tube 706, mounting through hole 712, and negative pressure suction cup 715 to decrease synchronously. Subsequently, the air pressure inside negative pressure chamber 724, connected to mounting through hole 712 via constant pressure hole 718, decreases. Then, under the pressure difference, switching plug 720 moves closer to mounting through hole 712. Next, switching plug 720, via switching slide rod 721, carries calibration clamp 722 to mounting through hole 712 synchronously, while simultaneously squeezing traction spring 719.The traction spring 719 shortens elastically, increasing its elastic potential energy. Then, the calibration clamp 722 gradually approaches the culture dish 219, and the chamfered groove 725 engages at the corner of the culture dish 219's surface. The calibration clamp 722 then pushes the culture dish 219 forward until all four chamfered grooves 725 simultaneously engage at the corner of the culture dish 219's surface, achieving alignment. At this point, the culture dish 219 and the receiving short tube 212 share a central axis. The control panel 216 then controls the extension of the electromagnetic telescopic rod 604. The electromagnetic telescopic rod 604, through the lifting arm 603, lifting bearing 602, and cleaning shaft 405, moves the cleaning head 5 upwards. The cleaning head 5 is then inserted into the culture dish 219, and the top brush 508 presses against the top surface of the inner cavity of the culture dish 219. Then, the control panel 216 controls the drive motor 401 to run. The drive motor 401, through the drive wheel 402, drive belt 403, driven wheel 404, long-necked internal toothed tube 606, the meshing between the long-necked internal toothed tube 606 and the long-necked external toothed tube 607, the long-necked external toothed tube 607, and the cleaning shaft 405, drives the cleaning head 5 to rotate rapidly. Then, the mounting strip 503, under centrifugal force, moves radially away from the cleaning disc 501 and pulls the return spring 507. The return spring 507 stretches elastically, increasing its elastic potential energy. Then, the transition brush 509 and side brush 510 press against the inner wall of the culture dish 219. Next, the top brush 508 and transition brush 509 clean the top surface of the inner cavity of the culture dish 219. Brush 510 cleans the inner wall of the petri dish 219. Simultaneously, control panel 216 opens the electromagnetic water valve 514. Antibacterial rinsing solution, under hydraulic pressure, is sprayed through the infusion tube 513, the inner cavity of the dividing boss 204, the fixing sleeve 601, the brush shaft 405, the inner cavity of the cleaning disc 501, and the rinsing hole 512, rinsing the inner wall of the petri dish 219. The resulting wastewater passes through the narrow hole 211 and falls into the receiving tank 203 along the surface of the guide tube 213. When cleaning is complete, control panel 216 stops the drive motor 401. Then, the mounting slide 503, under the elastic pull of the return spring 507, enters the mounting groove 502 and resets. Finally, control panel 216 controls the electromagnetic telescopic rod 6... 04. Shorten the tube, then clean the head 5, pull it out of the petri dish 219 and retract it into the receiving short tube 212. Next, the control panel 216 controls the three-way solenoid valve 705 to connect the inner cavity of the constant pressure rigid tube 706 to the external space through the constant pressure hose 704 and the three-way solenoid valve 705. Then, the vacuum inside the mounting hole 712 is broken, the force generated by the pressure difference disappears, and the negative pressure suction cup 715 no longer has suction on the petri dish 219. The switching plug 720, under the elastic repulsive force of the traction spring 719, moves radially away from the mounting hole 712. The switching plug 720 moves synchronously with the calibration clamp 722 via the switching slide rod 721 until the calibration clamp 722 resets. Then, the control panel 216 controls the electromagnet 726 to de-energize, and the electromagnetic force disappears.Then, the lifting spring 710 pushes the pressure block 711 upward through the load-bearing disc 707 and the constant-pressure rigid tube 706 until the pressure block 711 returns to its original position. Then, the control panel 216 controls the electric telescopic rod 301 to shorten the diameter of one culture dish 219, causing the culture dishes 219 to move synchronously. Next, the cleaned culture dishes 219 slide into the collection tank 218 away from the centering lever 215. Another culture dish 219 adjacent to this one moves above the receiving short tube 212. Cleaning is then performed according to the above principle. When there are many culture dishes 219 in the collection tank 218 away from the centering lever 215, the collection tank 218 away from the centering lever 215 is removed, and another empty collection tank 218 away from the centering lever 215 is installed. Then, the cleaned culture dishes 219 are transferred to the sterilization and drying oven 1 for sterilization and drying.

[0088] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

Claims

1. A microbial culture dish antibacterial cleaning device, comprising: A sterilization and drying oven (1) is characterized in that an antibacterial cleaning machine (2) is provided on the back of the sterilization and drying oven (1), and a pushing mechanism (3) is provided on the top surface of the sterilization and drying oven (1). The antibacterial cleaning machine (2) is provided with multiple open-to-the-bottom culture dishes (219) inside, and the multiple culture dishes (219) are arranged in a straight line. The pushing mechanism (3) intermittently pushes the culture dishes (219) arranged in a straight line to move synchronously and enter the antibacterial cleaning machine (2) one by one. The distance of a single movement is equal to the diameter of a single culture dish (219). The antibacterial cleaning machine (2) is provided with a driving mechanism (4) inside, and a cleaning head (5) is provided on the top of the driving mechanism (4). The cleaning head (5) is aligned with a culture dish (219). 19) opens and sprays water into it to rinse the inner wall of the culture dish (219). The bottom of the drive mechanism (4) is provided with a moving mechanism (6). The moving mechanism (6) inserts the cleaning head (5) into the culture dish (219) through the drive mechanism (4). The drive mechanism (4) rotates the cleaning head (5). The cleaning head (5) unfolds under the action of centrifugal force to clean the inner wall of the culture dish (219). A fixing structure (7) is provided above the culture dish (219) that the cleaning head (5) is aligned with. The fixing structure (7) fixes the culture dish (219) that the cleaning head (5) is aligned with. The culture dish (219) will not shift during rinsing and cleaning under the fixing action of the fixing structure (7). The antibacterial cleaning machine (2) includes a cleaning flat box (201), which is fixedly connected to the surface of the sterilization and drying box (1). Cleaning openings (202) are provided at the bottom of both ends of the cleaning flat box (201). Receiving slots (203) are movably inserted into the two cleaning openings (202). A dividing boss (204) is fixedly installed on the bottom surface of the inner cavity of the cleaning flat box (201). The end face of the receiving slot (203) inside the cleaning flat box (201) abuts against the side of the dividing boss (204). A diverter cap (205) is fixedly connected to the top surface of the dividing boss (204). The edge of the slot at the inner end of the receiving slot (203) is located below the diverter cap (205) and the end face of the receiving slot (203) abuts against the side of the dividing boss (204). An isolation plate (206) is fixedly installed on the inner wall of the cleaning flat box (201) at its top. Multiple parallel drainage holes (207) are opened at both ends of the top surface of the isolation plate (206). A functional box (208) is fixedly installed in the middle of the top surface of the isolation plate (206). A fixing structure (7) is installed inside the functional box (208). A cleaning opening (209) is opened on the bottom surface of the inner cavity of the functional box (208). The bottom end of the cleaning opening (209) penetrates the isolation plate (206) downward. Multiple parallel drainage holes (207) are fixedly connected to the inner wall of the cleaning opening (209). Parallel grid strips (210) are formed, with the top surface of the grid strips (210) flush with the bottom surface of the inner cavity of the functional box (208). A narrow hole (211) is formed between two adjacent grid strips (210). A short tube (212) is provided in the middle of the cleaning opening (209). The top surface of the short tube (212) is flush with the top surface of the grid strips (210). The cleaning head (5) is movably inserted into the inside of the short tube (212). The grid strips (210) are fixedly connected to the surface of the short tube (212). The bottom end of the short tube (212) is fixedly connected to a guide cone tube (213). The fixed structure (7) includes a fixed partition (701), which is fixedly connected to the inner wall of the function box (208). A control module (702) is fixedly installed at one end of the top surface of the fixed partition (701). The control module (702) is electrically connected to the control panel (216). A vacuum pump (703) is fixedly installed at the other end of the top surface of the fixed partition (701). A constant pressure hose (704) is connected to the top surface of the vacuum pump (703). A three-way solenoid valve (705) is installed on the constant pressure hose (704). A constant pressure rigid pipe (706) is fixedly connected to the other end of the constant pressure hose (704). A load-bearing disc (707) is fixedly connected to the top of the constant pressure rigid pipe (706). An anti-rotation slide bar (708) is fixedly connected to the bottom surface of the load-bearing disc (707). The anti-rotation slide bar (708) is fixedly connected to the surface of the constant pressure rigid pipe (706). An anti-rotation through hole is provided on the fixed partition (701). (709), a constant pressure rigid tube (706) and an anti-rotation slide bar (708) are movably inserted into the anti-rotation through hole (709). A lifting spring (710) is sleeved on the outside of the constant pressure rigid tube (706). The top end of the lifting spring (710) is fixedly connected to the bottom surface of the load-bearing disc (707), and the bottom end of the lifting spring (710) is fixedly connected to the top surface of the fixed partition (701). A pressure block (711) is fixedly connected to the bottom end of the constant pressure rigid tube (706). The pressure block (711) has an installation through hole (712) in the middle. A positioning bracket (713) is fixedly connected to the inner wall of the installation through hole (712). A connector (714) is inserted into the installation through hole (712) with an interference fit. A negative pressure suction cup (715) is connected to the end of the connector (714). The negative pressure suction cup (715) is connected to the constant pressure hose (704) through the connector (714), the installation through hole (712), the constant pressure hard tube (706); An electromagnet (726) is fixedly inserted into the fixed partition (701), and a high-pressure disk (727) aligned with the electromagnet (726) is fixedly connected to the pressure block (711). The pressure block (711) has four calibration grooves (716) on its bottom surface. The four calibration grooves (716) are located at the four ends of the two diagonals on the bottom surface of the pressure block (711). A negative pressure cavity (724) is formed on the end face of the inner cavity of the calibration groove (716). A constant pressure hole (718) communicating with the negative pressure cavity (724) is formed on the inner wall of the mounting through hole (712). A traction spring (719) is movably inserted into the negative pressure cavity (724). One end of the traction spring (719) abuts against the end face of the inner cavity of the negative pressure cavity (724). A conversion plug (720) is fixedly connected to the other end of the traction spring (719). The conversion plug (720) is slidably inserted into the inside of the negative pressure cavity (724). A conversion plug (720) is fixedly connected to the other end face of the conversion plug (720). The conversion slide (721) is located in the middle. The other end of the conversion slide (721) extends into the calibration slide (716) and is fixedly connected to the calibration clamp (722). The calibration clamp (722) is fixedly connected to the surface of the conversion slide (721) near the calibration slide (721). The calibration slide (716) has a calibration channel (717) on the end face of the inner cavity of the calibration slide (716). The calibration clamp (723) is slidably inserted into the calibration channel (717). The end of the calibration clamp (722) extends out from the calibration slide (716). The calibration clamp (722) has a snap-fit ​​chamfered groove (725) at its end on the surface of the calibration clamp (722) near the mounting through hole (712). The snap-fit ​​chamfered groove (725) is adapted to the corner of the outer side of the petri dish (219). When the electromagnet (726) is energized, it applies a magnetic repulsive force to the high-pressure disk (727). The high-pressure disk (727), under the influence of this magnetic repulsive force, moves downwards along with the pressure block (711). The pressure block (711) then pulls the load-bearing disk (707) downwards through the constant-pressure rigid tube (706). The load-bearing disk (707) compresses the lifting spring (710), causing the lifting spring (710) to compress elastically and increase its elastic potential energy. The pressure block (711), along with the negative pressure suction cup (715), then lightly presses against the top surface of the culture dish (219). The negative pressure suction cup (715) then adheres to the top surface of the culture dish (219), and the three-way solenoid valve (705) is activated. The pressure inside the constant-pressure rigid tube (706), the mounting through-hole (712), and the negative pressure suction cup (715) decreases synchronously. The negative pressure chamber then... (724) The air pressure inside the cavity connected to the mounting through hole (712) through the constant pressure hole (718) decreases. Then, the change plug (720) moves closer to the mounting through hole (712) under the action of pressure difference. Then, the change plug (720) moves closer to the mounting through hole (712) simultaneously with the calibration clamp (722) through the change slide (721). At the same time, the change plug (720) squeezes the traction spring (719), the traction spring (719) shortens its elasticity and increases its elastic potential energy. Then, the calibration clamp (722) gradually moves closer to the petri dish (219). Then, the chamfered groove (725) is fastened at the corner of the surface of the petri dish (219). Then, the calibration clamp (722) pushes the petri dish (219) to move until the four chamfered grooves (725) are fastened at the corner of the surface of the petri dish (219) at the same time, achieving centering.

2. The antibacterial cleaning device for microbial culture dishes according to claim 1, characterized in that, The functional box (208) has conveying holes (214) at its bottom on both sides. The inner wall of the conveying hole (214) is flush with the inner wall of the functional box (208). The conveying hole (214) on the feeding side of the functional box (208) near the feeding side of the culture dish (219) to be cleaned is fixedly connected to the two sides of the cavity. The centering plate (215) extends away from the inner wall of the conveying hole (214) towards the central axis of the cavity of the functional box (208). The horizontal distance between the surface of the centering plate (215) and the inner wall of the functional box (208) gradually increases along the extension direction. A control panel (216) is fixedly connected to the surface of the functional box (208) near the sterilization and drying box (1). A maintenance cover (217) is bolted to the top surface of the functional box (208). Two collection tanks (218) are placed on the top surface of the isolation plate (206). The two collection tanks (218) are located on both sides of the functional box (208). The collection tanks (218) are inserted into the cleaning flat box (201). An opening channel (220) is opened at one end of the collection tank (218) near the functional box (208). The inner wall of the opening channel (220) is flush with the inner wall of the collection tank (218). The opening channel (220) is connected to the conveying hole (214). The inner width of the collection tank (218) closer to the centering lever (215) is slightly larger than the diameter of the petri dish (219). The inner wall of the other collection tank (218) is flush with the inner wall of the conveying hole (214). A narrow discharge hole (221) is opened on the bottom surface of the inner cavity of the collection tank (218). The narrow discharge hole (221) is aligned with the drain hole (207). Multiple petri dishes (219) are arranged in a straight line with their openings facing down on the bottom surface of the inner cavity of the collection tank (218). Both ends of the cleaning flat box (201) are provided with insertion notches (222) located at their top. The bottom surface of the inner cavity of the insertion notch (222) is flush with the top surface of the isolation plate (206).

3. The antibacterial cleaning device for microbial culture dishes according to claim 2, characterized in that, The pushing mechanism (3) includes an electric telescopic rod (301), which is fixedly installed on the top surface of the sterilization and drying oven (1). A pushing slider (302) is fixedly connected to the end of the electric telescopic rod (301). A rectangular insertion hole (303) is provided on the pushing slider (302). A pushing plate (304) is slidably inserted into the rectangular insertion hole (303). The bottom end of the pushing plate (304) is movably inserted into the collection tank (218) closer to the centering lever (215) and contacts the petri dish (219). A limit baffle (305) is fixedly connected to the top surface of the pushing plate (304).

4. The antibacterial cleaning device for microbial culture dishes according to claim 2, characterized in that, The drive mechanism (4) includes a drive motor (401), which is bolted to the bottom surface of the isolation plate (206). A drive wheel (402) is fixedly sleeved on the output shaft of the drive motor (401). The drive wheel (402) is connected to a driven wheel (404) via a drive belt (403). A cleaning shaft (405) is inserted into the driven wheel (404). The bottom end of the cleaning shaft (405) is rotatably inserted into the top surface of the diverter cap (205). The cleaning head (5) is fixedly installed on the top end of the cleaning shaft (405).

5. The antibacterial cleaning device for microbial culture dishes according to claim 4, characterized in that, The cleaning head (5) includes a cleaning disc (501), which is fixedly connected to the top of the cleaning shaft (405) and movably inserted into the receiving short tube (212). Two mounting grooves (502) are provided on the top surface of the cleaning disc (501). One end of the mounting groove (502) is open and the opening is located on the side of the cleaning disc (501). The openings of the two mounting grooves (502) face opposite directions. A mounting strip (503) is slidably inserted into the mounting groove (502). A snap-fit ​​groove (504) is provided on the side of the mounting strip (503). A snap-fit ​​rail (505) is fixedly connected to the inner wall of the mounting groove (502). The snap-fit ​​rail (505) is slidably inserted into the snap-fit ​​rail. Inside the groove (504), a cylindrical cavity (506) is provided on the end face of the mounting slide (503) located at one end of the mounting slide groove (502). A return spring (507) is movably inserted into the cylindrical cavity (506). One end of the return spring (507) is fixedly connected to the end face of the inner cavity of the cylindrical cavity (506), and the other end of the return spring (507) is fixedly connected to the end face of the inner cavity of the mounting slide groove (502). A rounded transition surface is provided at the corner between the other end face of the mounting slide (503) and its top surface. A top brush (508) is provided on the top surface of the mounting slide (503), a transition brush (509) is provided on the rounded transition surface, and a side brush (510) is provided on the end face of the mounting slide (503). The cleaning shaft (405) and the cleaning disc (501) are both hollow and their internal cavities are interconnected. The top surface of the cleaning disc (501) has two chamfered bevels (511). The boundary line between the chamfered bevels (511) and the top surface of the cleaning disc (501) is parallel to the mounting groove (502). The top surface of the cleaning disc (501) and the surface of the chamfered bevels (511) are both provided with flushing holes (512) that communicate with the inner cavity of the cleaning disc (501). The dividing boss (204) is hollow. The cleaning shaft (405) communicates with the inner cavity of the dividing boss (204). An infusion tube (513) is inserted into the surface of the dividing boss (204). The infusion tube (513) communicates with the inner cavity of the dividing boss (204). One end of the infusion tube (513) extends to the outside of the cleaning flat box (201) and is fixedly installed with an electromagnetic water valve (514).

6. The antibacterial cleaning device for microbial culture dishes according to claim 5, characterized in that, The pulsating mechanism (6) includes a fixed sleeve (601), a lifting bearing (602), and a U-shaped bracket (605). The fixed sleeve (601) is slidably sleeved on the outside of the cleaning shaft (405). The gap between the fixed sleeve (601) and the cleaning shaft (405) is sealed by a rubber ring. The fixed sleeve (601) is fixedly inserted into the diverter cap (205) and communicates with the inner cavity of the dividing boss (204). The lifting bearing (602) is fixedly sleeved on the outside of the cleaning shaft (405). A lifting arm (603) is fixedly connected to the side of the lifting bearing (602). The bottom surface of the lifting arm (603) is fixedly connected to... An electromagnetic telescopic rod (604) is attached, with its bottom end fixedly connected to the top surface of the diverter cap (205). A U-shaped bracket (605) is fixedly connected to the bottom surface of the isolation plate (206). A long-necked internal toothed tube (606) is rotatably inserted into the U-shaped bracket (605). The long-necked internal toothed tube (606) is fixedly inserted into the driven wheel (404). A long-necked external toothed tube (607) is movably inserted into the long-necked internal toothed tube (606). The long-necked external toothed tube (607) meshes with the long-necked internal toothed tube (606). The long-necked external toothed tube (607) is fixedly sleeved on the outside of the cleaning shaft (405).

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