Automatic microbial sample treatment system

Abstract

The utility model provides an automatic microbiological sample treatment system, and belongs to the technical field of microbiological treatment. The device comprises a workbench, a pushing device arranged on the workbench, a loading rotating disc and a flow rotating disc, the loading rotating disc and the flow rotating disc are rotationally arranged on the workbench, the loading rotating disc is provided with a dish cover loading position and a loader loading position, and the flow rotating disc is provided with a loader bearing position and a dish cover bearing position. The workbench is further provided with a cover opening module, a lineation module and a cover closing moving module which are sequentially arranged in the rotating direction of the assembly line rotating disc, the cover opening module is used for taking away old vessel covers of the loaders located at the loader bearing position, and the cover closing moving module is used for covering the inoculated loaders with new vessel covers located at the vessel cover bearing position; and the new vessel cover is clamped with the loader. The whole system is reasonable in layout and stable and reliable in working process.

Description

Technical Field

[0001] This utility model belongs to the field of microbial processing technology and relates to an automatic microbial sample processing system. Background Technology

[0002] Clinical microbiology testing is an indispensable tool in medical institutions for disease diagnosis, rational antibiotic use, and hospital infection control. Microbial specimen pretreatment is a crucial step in testing, involving a large workload and significant time commitment, and its results directly impact the accuracy of subsequent tests. Currently, culture medium streaking in microbiology laboratories in domestic medical institutions primarily relies on manual operation. Staff members face the risk of biocontamination due to close contact with clinical specimens during this process. Furthermore, manual operation is highly susceptible to human factors; arbitrariness, non-standardization, and errors frequently lead to improper streaking and inaccurate culture results.

[0003] To this end, a Chinese patent discloses an automated microbial sample processing system [application publication number CN112725168A], including a base, a sample container transfer and opening device, a petri dish opening and transfer device, and a microbial inoculation device; the petri dish opening and transfer device includes a transfer component, a first petri dish placement tower, a second petri dish placement tower, and a sliding module. When the sliding module is in the initial position, the transfer component separates the bottom of the petri dish from the lid and places the bottom of the petri dish on the sliding module; or pushes the bottom of the petri dish away from the sliding module and closes the lid of the petri dish to the bottom until the petri dish enters the second petri dish placement tower from the feed end.

[0004] In the aforementioned automated microbial sample processing system, the petri dish opening and transfer device does not require an additional opening mechanism, allowing the petri dish to move and open simultaneously. However, since the movement direction of the sliding module is perpendicular to the closing direction of the dish lid, there is no locking structure between the two when the dish lid is closed on the bottom of the dish. Although this makes it convenient to open the lid, it can easily cause the dish lid to fall off when staff observe the growth status of microorganisms, resulting in a poor user experience.

[0005] If a hinged loader is used, that is, a structure in which the top cover is hinged to the loader, the operation of placing the culture dish into the loader is complicated. A complex opening mechanism is also required in the sample processing system. In addition, the top cover and the loader occupy a large space during the inoculation process, and the top cover hinged to the loader will affect the movement of the inoculation needle and the stability of the equipment. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an automated microbial sample processing system with good stability.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] An automated microbial sample processing system includes a workbench, a pushing device mounted on the workbench, a rotating loading turntable and a flow turntable mounted on the workbench. The loading turntable has at least one plate cap loading position and multiple loader loading positions. The flow turntable has multiple spaced-apart loader receiving positions and plate cap receiving positions. The pushing device is used to push a new plate cap from the plate cap loading position to the plate cap receiving position, and also to push a loader from the loader loading position to the loader receiving position. The workbench is also provided with an opening module, a marking module, and a closing moving module arranged sequentially along the rotation direction of the flow turntable. The opening module is used to remove the old plate cap from the loader located at the loader receiving position. The closing moving module is used to place a new plate cap from the plate cap receiving position onto the inoculated loader, and the new plate cap engages with the loader.

[0009] The lid loading positions and loader loading positions are evenly distributed along the circumference of the loading turntable. The loading turntable and the flow turntable rotate in steps. Each rotation of the loading turntable and the flow turntable has a lid loading position / loader loading position and a loader receiving position / lid receiving position opposite each other. The pushing device is located above the loading turntable, and the pushing direction extends radially along the loading turntable. The extension line of the pushing direction passes through the center of the flow turntable. The lid loading position is not lower than the lid receiving position, and the loader loading position is not lower than the loader receiving position, ensuring that the pushing device is not obstructed when pushing new lids / loaders.

[0010] When the loader is in the loading position, its top cover is equipped with a used dish cover. The used dish cover protects the culture medium inside the loader from dust and bacteria. The used dish cover is designed separately from the loader, meaning that the used dish cover is simply placed on the loader without any connection to it, making it convenient for the subsequent opening module to open it.

[0011] The loader has two circumferentially evenly arranged elastic buckles on its inner side, and the outer ring surface of the new plate cap has a radially outwardly extending annular protrusion. When the new plate cap is in place, the elastic buckles press against the annular protrusion, so that the new plate cap is locked with the loader, which can effectively prevent the new plate cap from falling off when the staff observes the growth status of microorganisms.

[0012] The process of transferring the loader and the new dish cover from the loading turntable to the flow turntable is as follows: the pushing device pushes the new dish cover, which has rotated to the dish cover loading position closest to the flow turntable, to the dish cover receiving position closest to the loading turntable on the flow turntable. Then, the loading turntable rotates a certain angle, the flow turntable rotates a certain angle, and the pushing device pushes the loader, which is located at the loader loading position, to the loader receiving position. This process is repeated so that the new dish cover and the loader move alternately onto the flow turntable.

[0013] The opening module removes the old plate cap from the loader located at the loader receiving position. Then, the streaking module picks up a microbial sample and inoculates it onto the culture medium of the opened loader. Next, the closing and moving module places a new plate cap located at the plate cap receiving position onto the inoculated loader. Finally, the loader with the new plate cap is packed into a box.

[0014] In the aforementioned automated microbial sample processing system, the workbench is also equipped with a collection basket for collecting old dish lids. The bottom side of the collection basket is provided with a horizontal inlet. The aforementioned lid opening module is also used to send the opened old dish lids into the horizontal inlet. The collection basket is equipped with a pushing component for pushing the old dish lids entering the collection basket upwards. The collection basket is also equipped with a receiving structure for receiving the old dish lids pushed upwards by the pushing component.

[0015] After being opened, the used dish lids are fed into the collection basket through the horizontal inlet by the opening module. Then, the pusher component rises, moving the used dish lids upwards to the receiving structure, where they are supported. As more used dish lids enter, the pusher component lifts them one by one until the entire collection basket is filled with used dish lids from bottom to top.

[0016] Collecting used dish lids centrally saves space and improves system stability. Concentrating them in a collection basket also facilitates later centralized processing.

[0017] In the aforementioned automated microbial sample processing system, the receiving structure includes a first stop rotatably mounted on the collection basket and a second stop opposite to the first stop. The first and second stops are at the same height. A first stop bar is provided above the first stop. Under the action of gravity, the first stop, abutting against the first stop bar, is in a supported state. A second stop bar is provided above the second stop. Under the action of gravity, the second stop, abutting against the second stop bar, is in a supported state. The distance between the first and second stops in the supported state is less than the diameter of the old plate lid. The first stop, which is swung upwards, is in a yielding state, and the second stop, which is swung upwards, is in a yielding state. The distance between the first and second stops in the yielding state is greater than the diameter of the old plate lid.

[0018] The old dish lid, fed in by the pushing assembly, is centered between and below the first and second stops. The pushing assembly pushes the old dish lid upwards, during which the old dish lid presses against the first and second stops, causing them to swing upwards respectively. The old dish lid then passes over the first and second stops, which, under their own gravity, swing downwards to return to their supporting position. The pushing assembly then descends, and the old dish lid is supported by the first and second stops. This repetitive motion can lift the old dish lids one by one, limiting their position with the first and second stops.

[0019] In the aforementioned automated microbial sample processing system, there are two first stops coaxial with their rotation center lines, and two second stops coaxial with their rotation center lines. The distance between the two first stops is less than the diameter of the old plate cap, and the distance between the two second stops is also less than the diameter of the old plate cap. The old plate cap, fed in by the push assembly, is centered between the two first stops and the two second stops, and is lower than the first and second stops. The four stops support the old plate cap, improving stability and support effectiveness.

[0020] In the above-mentioned automated microbial sample processing system, the push assembly includes a vertically arranged first lead screw motor, a first connecting rod connected to the spline shaft of the first lead screw motor, and a top plate disposed on the first connecting rod. When the first lead screw motor is working, it can drive the spline shaft and the first connecting rod to move up and down. The top plate is centrally located directly below the inner cavity of the collection basket.

[0021] The top plate can be round, square, or other shapes. The top surface area of ​​the top plate should not be less than 1 / 3 of the end surface area of ​​the old lid, which helps to stably lift the old lid upwards.

[0022] In the above-mentioned automated microbial sample processing system, there are two collection baskets arranged sequentially along the extension direction of the transverse inlet. Each collection basket is equipped with a push-pull component and a receiving structure. The old plate cap that enters first through the transverse inlet can be pushed into the next collection basket by the old plate cap that enters later.

[0023] The two collection baskets are connected as one unit. Setting up two collection baskets can increase the collection capacity. The old dish lid that enters first can be pushed into the next collection basket by the old dish lid that enters later. At this time, the old dish lid is centered in the next collection basket, and the old dish lid is centered in the previous collection basket. The pushing component only needs to operate once to push the two old dish lids.

[0024] In the aforementioned automated microbial sample processing system, the opening module includes a first support column on the workbench, a first linear module horizontally mounted on the first support column, a first slide block slidably mounted on the first linear module and driven by the first linear module, a second lead screw motor vertically mounted on the first slide block, and a first connecting plate mounted on the spline shaft of the second lead screw motor. The first connecting plate extends in the same direction as the first linear module and along the direction of the horizontal inlet. A first suction cup connected to a negative pressure source is provided on the lower side of the first connecting plate.

[0025] When the first linear module is working, it drives the first slide to reciprocate linearly, thereby driving the second lead screw motor, the first connecting plate and the first suction cup and other structures mounted on it to reciprocate along the extension direction of the first linear module; when the second lead screw motor is working, it drives the spline shaft and the first connecting plate to move up and down, thereby driving the suction cup to move up and down.

[0026] The working principle of the lid opening module is as follows:

[0027] The first linear module drives the first slide, the second lead screw motor, and the first connecting plate to move linearly, causing the first suction cup to move to the position directly above the loader at the loader receiving position. Then, the second lead screw motor drives the first connecting plate and the first suction cup to descend, and the first suction cup picks up the old dish cap. Then, the second lead screw motor drives the first connecting plate and the first suction cup to rise, raising the old dish cap to the same height as the horizontal inlet. Then, the first linear module drives the first connecting plate to move linearly, thereby sending the old dish cap through the horizontal inlet into the designated position of the collection basket. The first suction cup releases its grip on the old dish cap, and then the first connecting plate resets under the action of the first linear module. This reciprocating action can remove the old dish cap from the loader that has moved to this workstation.

[0028] In the above-mentioned automated microbial sample processing system, a first mounting base is provided on the first slide block, a second lead screw motor is provided on the first mounting base, a vertically extending guide rail is provided on the first mounting base, a slider is slidably provided on the guide rail, a second connecting rod is fixed on the slider, and the lower end of the second connecting rod is connected to the first connecting plate.

[0029] The guide rail, slider, and second connecting rod can guide the up-and-down movement of the first connecting plate, improving the stability of the up-and-down movement of the first connecting plate.

[0030] In the aforementioned automated microbial sample processing system, the cover-closing moving module includes a second support column on the workbench, a second linear module horizontally mounted on the second support column, a second slide block slidably mounted on the second linear module and driven by the second linear module, a third linear module vertically mounted on the second slide block, a third slide block mounted on the third linear module and driven by the third linear module, and a second connecting plate vertically mounted on the third slide block. The lower end of the second connecting plate is provided with a second suction cup connected to a negative pressure source.

[0031] When the second linear module is working, it drives the third linear module to move. When the third linear module is working, it drives the second connecting plate and the second suction cup to move up and down, thereby realizing the gripping and closing of the new dish lid.

[0032] In the above-mentioned automated microbial sample processing system, a horizontally extending connecting block is fixed at the lower end of the second connecting plate, and the second suction cup is centrally located on the lower side of the connecting block. Spring pins are provided at both ends of the connecting block, and the lower ends of the spring pins in the free state are higher than the lower surface of the second suction cup.

[0033] When the second suction cup picks up a new lid, the lower end of the spring pin is higher than the lower surface of the second suction cup, so the lower end of the spring pin will not abut against the new suction cup, thus enabling the suction and movement of the new suction cup. When the new lid is moved directly above the loader, the third linear module causes the connecting block to move downward, and the new lid is locked onto the loader by the compression of the spring pin. During this process, the second suction cup is disconnected from the negative pressure source.

[0034] In the aforementioned automated microbial sample processing system, the connecting block has longitudinally extending mounting holes at both ends, and the spring pins are all installed in different mounting holes, with the lower end of the spring pin extending downward from the lower end of the mounting hole.

[0035] The upper part of the spring pin is a spring, and the lower part is a pin. The spring and the pin are fixedly connected. There is an annular step in the mounting hole to limit the pin and prevent it from falling out of the mounting hole. There is a limit plug at the upper end of the mounting hole. The upper end of the spring acts on the limit plug. Under the action of the spring force, the pin head abuts against the annular step. When the spring pin is subjected to an upward force, the pin can retract upward into the mounting hole.

[0036] In the aforementioned automated microbial sample processing system, a downward-extending temporary storage box is provided on the workbench, and a horizontally extending fourth linear module is provided below the temporary storage box. A fourth slide block driven by the fourth linear module is slidably mounted on the fourth linear module, and a hollow receiving plate for receiving the loader is provided on the fourth slide block. A printer for printing information on the lower side of the loader is also provided below the temporary storage box. The fourth linear module drives the hollow receiving plate to move between directly below the temporary storage box and above the printer.

[0037] After the lid-closing moving module places the new dish lid on the loader, the second suction cup holds the new dish lid. When the second suction cup moves laterally, it will drive the loader to move laterally as well. When the loader moves directly above the temporary storage box, the second connecting plate moves downward. The loader, held by the second suction cup, enters through the entrance of the temporary storage box. When it descends to a certain position, the second suction cup releases its grip on the new dish lid of the loader. At this time, the loader is placed on the perforated receiving plate. Then, the third linear module drives the second connecting plate to retract and reset. The fourth linear module located below drives the perforated receiving plate to move laterally, transporting the loader to the top of the printer. The printer prints the barcode / label information onto the lower surface of the loader. Then, it is packed into boxes by the packing module located below the temporary storage box. The packing module adopts the existing structure.

[0038] In the aforementioned automated microbial sample processing system, the streaking module includes a first-zone streaking module, a second-zone streaking module, and a liquid-absorbing cap module. The liquid-absorbing cap module is used to open the cap of the sample cup. The first-zone streaking module and the second-zone streaking module are respectively used to move the inoculation needle between the inoculation needle holder, the sample cup, and the loader. The first-zone streaking module, the second-zone streaking module, and the liquid-absorbing cap module adopt existing structures.

[0039] Compared with existing technologies, this automated microbial sample processing system has the following advantages:

[0040] The separate design of the used plate cap and the loader facilitates the subsequent opening of the cap by the opening module. The used plate cap protects the culture medium inside the loader, preventing the entry of dust / bacteria and other contaminants. The discarded plate caps are collected centrally in a collection basket, saving space, improving the stability of the system, and facilitating centralized processing later. The new plate cap snaps into the loader, effectively preventing it from falling off when staff observe the growth of microorganisms. The rational structural layout prevents collisions between modules, ensuring stable and reliable operation. Attached Figure Description

[0041] Figure 1 This is a top view of the automated microbial sample processing system.

[0042] Figure 2 This is a schematic diagram of the structure of the automated microbial sample processing system.

[0043] Figure 3 This is another structural schematic diagram of the automated microbial sample processing system.

[0044] Figure 4 This is a schematic diagram of the structure of the loading turntable and the flow turntable provided by this utility model.

[0045] Figure 5 This is a schematic diagram of the structure of the opening module and the collection basket provided by this utility model.

[0046] Figure 6 This is a schematic diagram of the structure of the collection basket provided by this utility model.

[0047] Figure 7 This is a structural schematic diagram of the opening module provided by this utility model.

[0048] Figure 8 This is a schematic diagram of the structure of the cover-closing moving module provided by this utility model.

[0049] Figure 9 This is a schematic diagram of the structure of the second suction cup provided by this utility model when it picks up a new dish lid.

[0050] Figure 10This is a schematic diagram of the structure below the temporary storage box provided by this utility model.

[0051] Figure 11 This is a schematic diagram of the zone marking module, the zone marking module, and the liquid-dipping suction cap module.

[0052] Figure 12 This is a schematic diagram of the loader when the new container lid is on.

[0053] In the diagram, 1. Workbench; 2. Pushing device; 3. Loading turntable; 4. Flow turntable; 5. Lid loading position; 6. Loader loading position; 7. Loader receiving position; 8. Lid receiving position; 9. Old lid; 10. New lid; 11. Collection basket; 12. Horizontal inlet; 13. First stop; 14. Second stop; 15. First stop bar; 16. Second stop bar; 17. First lead screw motor; 18. First connecting rod; 19. Top plate; 20. First support column; 21. First linear module; 22. First slide block; 23. Second lead screw motor; 24. First connecting plate; 25. 26. First suction cup; 27. First mounting base; 28. Guide rail; 29. ​​Slider; 30. Second connecting rod; 31. Second support column; 32. Second linear module; 33. Third linear module; 34. Second connecting plate; 35. Second suction cup; 36. Connecting block; 37. Spring pin; 38. Temporary storage box; 39. Fourth linear module; 40. Hollowed-out receiving tray; 41. Printer; 42. First zone marking module; 43. Second zone marking module; 44. Liquid-dipped suction cap module; 45. Inoculation needle holder; 46. Dish cap placement basket; 47. Loader placement basket; 48. Loader; 49. Snap-fit ​​structure. Detailed Implementation

[0054] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0055] like Figure 1-3 The automated microbial sample processing system shown includes a workbench 1, a pushing device 2 mounted on the workbench 1, a rotating loading turntable 3 and a flow turntable 4 mounted on the workbench 1. The loading turntable 3 has a hollow center, and the pushing device 2 is located in the hollow center of the loading turntable 3. The pushing device 2 pushes samples radially along the loading turntable 3. The pushing device 2 is used to push a new plate cap 10 located at the plate cap loading position 5 to the plate cap receiving position 8, and also to push the loader 47 located at the loader loading position 6 to the loader receiving position 7.

[0056] In this embodiment, the pushing device 2 is a linear module, and the slide block, which is slidably arranged with the linear module and driven by the linear module, is fixed on the worktable 1. When the linear module is working, the slide block is fixed and the linear module moves radially along the loading turntable 3.

[0057] like Figure 4 As shown, the loading turntable 3 is provided with two lid loading positions 5 and six loader loading positions 6. The two lid loading positions 5 are arranged opposite each other, and the eight loading positions formed by the two lid loading positions 5 and the six loader loading positions 6 are evenly distributed along the circumference of the loading turntable 3.

[0058] In this embodiment, the lid loading position 5 is a first loading slot located on the upper part of the loading turntable 3, which mates with the new lid 10. A lid placement basket 45 is provided on the loading turntable 3, located directly above the first loading slot. New lids 10 are stacked in a single row from top to bottom in the lid placement basket 45. A first outlet is provided on the lower outer side of the lid placement basket 45. Under the action of the pushing device 2, only one new lid 10 is pushed out from the first outlet at a time. The loader loading position 6 is a second loading slot located on the upper part of the loading turntable 3, which mates with the loader 47. A loader placement basket 46 is provided on the loading turntable 3, located directly above the second loading slot. Loaders 47 are stacked in a single row from top to bottom in the loader placement basket 46. A second outlet is provided on the lower outer side of the loader placement basket 46. Under the action of the pushing device 2, only one loader 47 is pushed out from the second outlet at a time.

[0059] The loading turntable 3 is rotatably mounted on the worktable 1. Below the loading turntable 3, there is a drive wheel driven by a stepper motor / servo motor, and a driven wheel is coaxially mounted below the loading turntable 3. The drive wheel and the driven wheel are connected by a belt drive. When the stepper motor / servo motor is working, it drives the drive wheel to rotate, and the drive wheel then drives the driven wheel to rotate, thereby driving the loading turntable 3 to rotate by a specified angle.

[0060] like Figure 4 As shown, the flow turntable 4 is provided with four loader receiving positions 7 and four dish cover receiving positions 8. The four loader receiving positions 7 and four dish cover receiving positions 8 are arranged alternately, and the eight receiving positions formed by the four loader receiving positions 7 and four dish cover receiving positions 8 are evenly distributed along the circumference of the flow turntable 4. In order to effectively receive the loader 47 and the new dish cover 10, the loader receiving position 7 is a first receiving groove adapted to the loader 47, and the dish cover receiving position 8 is a second receiving groove adapted to the new dish cover 10.

[0061] The flow turntable 4 is rotatably mounted on the workbench 1. Below the flow turntable 4, there is a drive wheel driven by a stepper motor / servo motor, and a driven wheel is coaxially mounted below the flow turntable 4. The drive wheel and the driven wheel are connected by a belt drive. When the stepper motor / servo motor is working, it drives the drive wheel to rotate, and the drive wheel then drives the driven wheel to rotate, thereby driving the flow turntable 4 to rotate. Since the eight receiving positions are evenly distributed around the circumference, the angle of each rotation of the flow turntable 4 is 8 / 360° = 45°.

[0062] Each time the loading turntable 3 and the flow turntable 4 rotate, there is a loading position and a receiving position that are opposite each other. Specifically, the lid loading position 5 and the lid receiving position 8 are opposite each other, or the loader loading position 6 and the loader receiving position 7 are opposite each other. The lid loading position 5 and the loader receiving position 7 will not be opposite each other, nor will the loader loading position 6 and the lid receiving position 8 be opposite each other.

[0063] To facilitate the entry of the new lid 10 / loader 47 from the loading turntable 3 into the flow turntable 4, the lid receiving position 8 is not higher than the lid loading position 5, and the loader receiving position 7 is not higher than the loader loading position 6.

[0064] Along the rotation direction of the turntable 4, the four loader receiving positions 7 are located at the loading station, the first zone marking station, the second zone marking station, and the packing station, respectively. Only the loader receiving position 7 located at the loading station can receive the loader 47 pushed by the pushing device 2.

[0065] like Figure 1-3 As shown, the workbench 1 is provided with an opening module, a marking module, and a closing module arranged sequentially along the rotation direction of the turntable 4. The opening module is located at the loading station and is used to remove the old dish caps 9 from the loader 47 located at the loader receiving position 7. The marking module includes a first-zone marking module 41, a second-zone marking module 42, and a liquid-dipped cap suction module 43. The first-zone marking module 41 is used to mark the culture medium in the loader 47 located at the first-zone marking station. The inoculation marking module 42 is used to mark the inoculation lines on the loader 47 located at the second marking station. The liquid-dipping module is used to open the sample cup. The first marking module 41 and the second marking module 42 are used to move the inoculation needle between the inoculation needle seat 44, the sample cup opened by the liquid-dipping cap module 43, and the loader 47, respectively. The first marking module 41, the second marking module 42, and the liquid-dipping cap module 43 adopt the existing structure.

[0066] The lid-closing moving module is used to place the new lid 10, located at the lid receiving position 8, onto the already inoculated loader 47, such as... Figure 12 As shown, the new dish lid 10 is engaged with the loader 47. The outer periphery of the new dish lid 10 has an annular retaining edge. The loader is provided with two elastic snap-fit ​​structures 48 arranged symmetrically along the center line of the storage cavity. After the new dish lid 10 is installed on the loader, the snap-fit ​​structures 48 press against the annular retaining edge, which can prevent the new dish lid 10 from falling out of the loader.

[0067] When the loader 47 is located at the loader loading position 6, its upper cover is equipped with a used dish cover 9. The used dish cover 9 can protect the culture medium inside the loader 47 and prevent dust / bacteria from entering. The used dish cover 9 is designed separately from the loader 47, that is, the used dish cover 9 is simply placed on the loader 47 and is not connected to the loader 47 in any way, which facilitates the subsequent opening module to open the cover.

[0068] like Figure 5 and Figure 6 As shown, the workbench 1 is also provided with a collection basket 11 for collecting old dish lids 9. The bottom side of the collection basket 11 is provided with a horizontal inlet 12. The lid opening module is also used to send the old dish lids 9 after opening into the horizontal inlet 12. The collection basket 11 is provided with a pushing component for pushing the old dish lids 9 that have entered the collection basket 11 upward. The collection basket 11 is also provided with a receiving structure for receiving the old dish lids 9 that have been pushed upward by the pushing component.

[0069] After being opened, the old dish lids 9 are fed into the collection basket 11 through the horizontal inlet 12 by the opening module. Then, the pusher component rises and moves the old dish lids 9 upward to the receiving structure, where the receiving structure supports the old dish lids 9. As the old dish lids 9 continue to enter, the pusher component lifts them up one by one, until the entire collection basket 11 is filled with old dish lids 9 from bottom to top.

[0070] Collecting the old dish lids 9 centrally saves space and improves the stability of the system. Collecting the old dish lids 9 in the collection basket 11 also facilitates centralized processing later.

[0071] like Figure 6 As shown, the receiving structure includes a first stop 13 rotatably mounted on the collection basket 11 and a second stop 14 opposite to the first stop 13. The first stop 13 and the second stop 14 are set at the same height. A first stop bar 15 is provided above the first stop 13. Under the action of gravity, the first stop 13, which abuts against the first stop bar 15, is in a supported state. A second stop bar 16 is provided above the second stop 14. Under the action of gravity, the second stop 14, which abuts against the second stop bar 16, is in a supported state. The distance between the first stop 13 and the second stop 14 in the supported state is less than the diameter of the old dish lid 9. The first stop 13, which is swung upward, is in a yielding state, and the second stop 14, which is swung upward, is in a yielding state. The distance between the first stop 13 and the second stop 14 in the yielding state is greater than the diameter of the old dish lid 9.

[0072] The old dish lid 9, fed in by the pushing assembly, is centered between and below the first stop 13 and the second stop 14. The pushing assembly pushes the old dish lid 9 upward, during which the old dish lid 9 presses against the first stop 13 and the second stop 14, causing the first stop 13 and the second stop 14 to swing upward respectively. Then, the old dish lid 9 passes over the first stop 13 and the second stop 14, and the first stop 13 and the second stop 14 swing downward to return to their supporting state under their own gravity. Then, the pushing assembly descends, and the old dish lid 9 is supported by the first stop 13 and the second stop 14. This reciprocating action can lift the old dish lid 9 one by one upward and limit it by the first stop 13 and the second stop 14.

[0073] In order to effectively support the old dish lid 9, such as Figure 5 and Figure 6 As shown, there are two first stops 13, both coaxial with their rotation center lines, and two second stops 14, also coaxial with their rotation center lines. The distance between the two first stops 13 is less than the diameter of the old lid 9, and the distance between the two second stops 14 is also less than the diameter of the old lid 9. The old lid 9, fed in by the push assembly, is centered between the two first stops 13 and the two second stops 14 and is lower than the first stops 13 and the second stops 14. The four stops support the old lid 9, improving stability and support effectiveness.

[0074] like Figure 5 and Figure 6 As shown, the push assembly includes a vertically arranged first lead screw motor 17, a first connecting rod 18 connected to the spline shaft of the first lead screw motor 17, and a top plate 19 disposed on the first connecting rod 18. When the first lead screw motor 17 is working, it can drive the spline shaft and the first connecting rod 18 to move up and down. The top plate 19 is centrally located directly below the inner cavity of the collection basket 11.

[0075] The top plate 19 can be circular, square, or other shapes. In this embodiment, a circular top plate 19 is used. The top surface area of ​​the top plate 19 is not less than 1 / 3 of the end surface area of ​​the old lid 9, which is beneficial for stably lifting the old lid 9 upward.

[0076] like Figure 5 and Figure 6 As shown, there are two collection baskets 11 arranged sequentially along the extension direction of the transverse inlet 12. Each collection basket 11 is equipped with a pushing component and a receiving structure. The first old dish lid 9 that enters through the transverse inlet 12 can be pushed into the next collection basket 11 by the second old dish lid 9 that enters later. The two collection baskets 11 are connected as one unit. Setting up two collection baskets 11 can increase the collection capacity. The first old dish lid 9 that enters first can be pushed into the next collection basket 11 by the second old dish lid 9. At this time, the first old dish lid 9 is centered in the next collection basket 11, and the second old dish lid 9 is centered in the previous collection basket 11. The pushing component only needs to operate once to push the two old dish lids 9.

[0077] like Figure 7 As shown, the cover opening module includes a first support column 20 on the workbench 1, a first linear module 21 horizontally mounted on the first support column 20, a first slide block 22 slidably mounted on the first linear module 21 and driven by the first linear module 21, a second lead screw motor 23 vertically mounted on the first slide block 22, and a first connecting plate 24 mounted on the spline shaft of the second lead screw motor 23. The extension direction of the first connecting plate 24 is the same as the extension direction of the first linear module 21 and extends along the extension direction of the horizontal inlet 12. A first suction cup 25 connected to a negative pressure source is provided on the lower side of the first connecting plate 24.

[0078] When the first linear module 21 is working, it drives the first slide block 22 to reciprocate linearly, thereby driving the second lead screw motor 23, the first connecting plate 24 and the first suction cup 25 and other structures mounted on it to reciprocate along the extension direction of the first linear module 21; when the second lead screw motor 23 is working, it drives the spline shaft and the first connecting plate 24 to move up and down, thereby driving the suction cup to move up and down.

[0079] like Figure 7 As shown, a first mounting base 26 is provided on the first slide block 22, and a second lead screw motor 23 is mounted on the first mounting base 26. A vertically extending guide rail 27 is provided on the first mounting base 26, and a slider 28 is slidably mounted on the guide rail 27. A second connecting rod 29 is fixed on the slider 28, and the lower end of the second connecting rod 29 is connected to the first connecting plate 24. The guide rail 27, the slider 28, and the second connecting rod 29 can guide the up-and-down movement of the first connecting plate 24, improving the stability of the up-and-down movement of the first connecting plate 24.

[0080] like Figure 8 As shown, the lid-closing moving module includes a second support column 30 mounted on the worktable 1, a second linear module 31 horizontally mounted on the second support column 30, a second slide block slidably mounted on and driven by the second linear module 31, a third linear module 32 vertically mounted on the second slide block, a third slide block mounted on and driven by the third linear module, and a second connecting plate 33 vertically mounted on the third slide block. The lower end of the second connecting plate 33 is provided with a second suction cup 34 connected to a negative pressure source. When the second linear module 31 is working, it drives the third linear module to move. When the third linear module is working, it drives the second connecting plate 33 and the second suction cup 34 to move up and down, thereby realizing the gripping and closing of the new lid 10.

[0081] like Figure 8 and Figure 9 As shown, a horizontally extending connecting block 35 is fixed at the lower end of the second connecting plate 33, and the second suction cup 34 is centrally located on the lower side of the connecting block 35. Two spring pins 36 are respectively provided at both ends of the connecting block 35, and the lower ends of the spring pins 36 in the free state are higher than the lower surface of the second suction cup 34.

[0082] When the second suction cup 34 picks up the new dish cap 10, since the lower end of the spring pin 36 is higher than the lower surface of the second suction cup 34, the lower end of the spring pin 36 will not abut against the new suction cup, thus enabling the suction and movement of the new suction cup. When the new dish cap 10 is moved directly above the loader 47, the third linear module causes the connecting block 35 to move downward, and the new dish cap 10 is snapped onto the loader 47 by the compression of the spring pin 36. During this process, the second suction cup 34 is disconnected from the negative pressure source.

[0083] To facilitate the installation of the spring pins 36, longitudinally extending mounting holes are provided at both ends of the connecting block 35. The spring pins 36 are all set in different mounting holes, and the lower end of the spring pins 36 extends downward from the lower end of the mounting hole.

[0084] The upper part of the spring pin 36 is a spring, and the lower part is a pin. The spring and the pin are fixedly connected. The mounting hole has an annular step to limit the pin and prevent it from falling out of the mounting hole. The upper end of the mounting hole is provided with a limit plug. The upper end of the spring acts on the limit plug. Under the action of the spring force, the pin head abuts against the annular step. When the spring pin 36 is subjected to an upward force, the pin can retract upward into the mounting hole.

[0085] like Figure 2 and Figure 10 As shown, a temporary storage box 37 is provided on the workbench 1, which is opposite to the packing station. Below the temporary storage box 37, a fourth linear module 38 extends laterally. A fourth slide block driven by the fourth linear module 38 is slidably mounted on the fourth linear module 38. A hollow receiving plate 39 for receiving the loader 47 is provided on the fourth slide block. Below the temporary storage box 37, a printer 40 for printing information on the lower side of the loader 47 is also provided. The fourth linear module 38 drives the hollow receiving plate 39 to move between directly below the temporary storage box 37 and above the printer 40. Below the hollow receiving plate 39, a packing module (not shown in the figure) is provided. The packing module adopts an existing structure.

[0086] The working process of loading turntable 3, flow turntable 4 and pushing device 2 is as follows:

[0087] The loading turntable 3 rotates, moving the lid loading position 5 to a position opposite to the feeding station. The pushing device 2 pushes a new lid 10 to the lid receiving position 8 at the feeding station. The loading turntable 3 continues to rotate, moving the loader loading position 6 to a position opposite to the feeding station. Simultaneously, the flow turntable 4 rotates 45°, causing one of the loader receiving positions 7 to rotate to the feeding station. The pushing device 2 pushes a loader 47 to the loader receiving position 7 at the feeding station. This process is repeated, pushing new lids 10 and loader 47 alternately towards the flow turntable 4.

[0088] The working principle of the lid opening module is as follows:

[0089] The first linear module 21 drives the first slide block 22, the second lead screw motor 23, and the first connecting plate 24 to move linearly, causing the first suction cup 25 to move to the position directly above the loader 47 at the loader receiving position 7. Then, the second lead screw motor 23 drives the first connecting plate 24 and the first suction cup 25 to descend, and the first suction cup 25 picks up the old dish cap 9. Then, the second lead screw motor 23 drives the first connecting plate 24 and the first suction cup 25 to rise, causing the old dish cap 9 to rise to the same height as the horizontal inlet 12. Then, the first linear module 21 drives the first connecting plate 24 to move linearly, thereby sending the old dish cap 9 through the horizontal inlet 12 into the designated position of the collection basket 11. The first suction cup 25 releases its grip on the old dish cap 9, and then the first connecting plate 24 resets under the action of the first linear module 21. This reciprocating action can pick up the old dish cap 9 that has moved to the loading station of the loader 47 and put it into the collection basket 11, and collect the old dish cap 9 in a centralized manner through the collection basket 11.

[0090] After the loader 47 is opened, it continues to rotate with the flow turntable 4 and completes the inoculation marking under the action of the first zone marking module 41 and the second zone marking module 42.

[0091] When the loading turntable 3 moves to the packing station, the second suction cup 34 has already picked up a new dish cap 10. Under the action of the cap-closing moving module, the new dish cap 10 is placed on the loading seat. Then, the second suction cup 34 holds the new dish cap 10. When the second suction cup 34 moves laterally, it will drive the loader 47 to move laterally as well. When the loader 47 moves directly above the temporary storage box 37, the second connecting plate 33 moves downward, and the loader 47, held by the second suction cup 34, enters through the entrance of the temporary storage box 37. When it descends to a certain position, the second suction cup 34 releases its suction on the new dish cover 10 of the loader 47. At this time, the loader 47 is placed on the hollow receiving plate 39. Then, the third linear module drives the second connecting plate 33 to retract and reset. The fourth linear module 38 located below drives the hollow receiving plate 39 to move laterally, transporting the loader 47 above the printer 40. The printer 40 prints the barcode / label information onto the lower surface of the loader 47, and then it is packed into boxes by the packing module located below the temporary storage box 37.

[0092] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An automated microbial sample processing system, comprising a workbench (1), a pushing device (2) disposed on the workbench (1), a rotating loading turntable (3) and a flow turntable (4) disposed on the workbench (1), characterized in that, The loading turntable (3) is provided with at least one lid loading position (5) and multiple loader loading positions (6). The flow turntable (4) is provided with multiple spaced loader receiving positions (7) and lid receiving positions (8). The pushing device (2) is used to push the new lid (10) located at the lid loading position (5) to the lid receiving position (8), and also to push the loader located at the loader loading position (6) to the loader receiving position (7). The workbench (1) is also provided with an opening module, a marking module and a closing moving module arranged sequentially along the rotation direction of the flow turntable (4). The opening module is used to remove the old lid (9) of the loader located at the loader receiving position (7). The closing moving module is used to put the new lid (10) located at the lid receiving position (8) onto the inoculated loader, and the new lid (10) is engaged with the loader.

2. The automated microbial sample processing system according to claim 1, characterized in that, The workbench (1) is also provided with a collection basket (11) for collecting old dish lids (9). The bottom side of the collection basket (11) is provided with a horizontal inlet (12). The opening module is also used to send the old dish lids (9) after opening into the horizontal inlet (12). The collection basket (11) is provided with a pushing component for pushing the old dish lids (9) that enter the collection basket (11) upward. The collection basket (11) is also provided with a receiving structure for receiving the old dish lids (9) that are pushed upward by the pushing component.

3. The automated microbial sample processing system according to claim 2, characterized in that, The receiving structure includes a first stop (13) rotatably mounted on the collection basket (11) and a second stop (14) opposite to the first stop (13). The first stop (13) and the second stop (14) are set at the same height. A first stop bar (15) is provided above the first stop (13). Under the action of gravity, the first stop (13) abutting against the first stop bar (15) is in a supported state. A second stop bar (16) is provided above the second stop (14). Under the action of gravity, the second stop (14) abutting against the second stop bar (16) is in a supported state. The distance between the first stop (13) in the supported state and the second stop (14) in the supported state is less than the diameter of the old dish lid (9). The first stop (13) swinging upward is in a yielding state, and the second stop (14) swinging upward is in a yielding state. The distance between the first stop (13) in the yielding state and the second stop (14) in the yielding state is greater than the diameter of the old dish lid (9).

4. The automated microbial sample processing system according to claim 3, characterized in that, There are two first stops (13) with their rotation center lines coaxial, and two second stops (14) with their rotation center lines coaxial. The distance between the two first stops (13) is less than the diameter of the old lid (9), and the distance between the two second stops (14) is less than the diameter of the old lid (9).

5. The automated microbial sample processing system according to claim 2, characterized in that, The push assembly includes a vertically arranged first lead screw motor (17), a first connecting rod (18) connected to the spline shaft of the first lead screw motor (17), and a top plate (19) disposed on the first connecting rod (18). When the first lead screw motor (17) is working, it can drive the spline shaft and the first connecting rod (18) to move up and down. The top plate (19) is centrally located directly below the inner cavity of the collection basket (11).

6. The automated microbial sample processing system according to claim 2, characterized in that, The opening module includes a first support column (20) on the workbench (1), a first linear module (21) horizontally on the first support column (20), a first slide block (22) slidably on the first linear module (21) and driven by the first linear module (21), a second lead screw motor (23) vertically on the first slide block (22) and a first connecting plate (24) on the spline shaft of the second lead screw motor (23). The extension direction of the first connecting plate (24) is the same as the extension direction of the first linear module (21) and extends along the extension direction of the horizontal inlet (12). The lower side of the first connecting plate (24) is provided with a first suction cup (25) connected to the negative pressure source.

7. The automated microbial sample processing system according to claim 6, characterized in that, The first slide (22) is provided with a first mounting base (26), the second lead screw motor (23) is provided on the first mounting base (26), the first mounting base (26) is provided with a vertically extending guide rail (27), the guide rail (27) is slidably provided with a slider (28), the slider (28) is fixed with a second connecting rod (29), and the lower end of the second connecting rod (29) is connected to the first connecting plate (24).

8. The automated microbial sample processing system according to claim 1, characterized in that, The cover-closing moving module includes a second support column (30) on the workbench (1), a second linear module (31) horizontally on the second support column (30), a second slide block slidably on the second linear module (31) and driven by the second linear module (31), a third linear module (32) vertically on the second slide block, a third slide block on the third linear module and driven by the third linear module, and a second connecting plate (33) vertically on the third slide block. The lower end of the second connecting plate (33) is provided with a second suction cup (34) connected to a negative pressure source.

9. The automated microbial sample processing system according to claim 8, characterized in that, The lower end of the second connecting plate (33) is fixed with a horizontally extending connecting block (35), and the second suction cup (34) is centrally located on the lower side of the connecting block (35). The two ends of the connecting block (35) are respectively provided with spring pins (36), and the lower end of the spring pins (36) in the free state is higher than the lower surface of the second suction cup (34).

10. The automated microbial sample processing system according to claim 1, characterized in that, The workbench (1) is provided with a downwardly extending temporary storage box (37), and a horizontally extending fourth linear module (38) is provided below the temporary storage box (37). A fourth slide block driven by the fourth linear module (38) is slidably provided on the fourth linear module (38). A hollow receiving plate (39) for receiving the loader is provided on the fourth slide block. A printer (40) for printing information on the lower side of the loader is also provided below the temporary storage box (37). The fourth linear module (38) drives the hollow receiving plate (39) to move between directly below the temporary storage box (37) and above the printer (40).

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