Auxiliary device for detecting microorganisms in culture dish in clean room and use method of auxiliary device

Abstract

The invention discloses a microbiological detection auxiliary device for culture dishes in a clean room and a use method thereof, the microbiological detection auxiliary device comprises: a lifting storage rack which can move in a vertical direction and is provided with a plurality of stacked and independently arranged placing trays in the vertical direction, and the placing trays are used for bearing culture dish bodies; the operation table is arranged on one side of the lifting storage rack; the multiple placing trays can be sequentially lifted to be located in the same horizontal plane with the operation table and attached to the operation table under the lifting power of the lifting storage frame. The transferring mechanism is used for transferring the culture dish body between the placing tray and the operation table; wherein a positioning cavity can be formed between the transfer mechanism and the operation table; the cover turning mechanism is arranged on the side, away from the lifting storage frame, of the operation table. By means of the arrangement, closed-loop control over storage, transfer, cover opening, detection and cover closing of the culture dishes is achieved, the artificial pollution risk is eliminated, meanwhile, the requirement for continuous detection can be met, and the purpose of improving the detection rate is achieved.

Description

Technical Field

[0001] The present invention relates to the field of petri dish detection, and particularly to an auxiliary device for detecting microorganisms in petri dishes in a clean room and a method for using the same. Background Art

[0002] In fields such as food, medicine, and biopharmaceuticals where extremely high requirements are placed on the cleanliness of the production environment, microbial contamination monitoring is a core link in ensuring product quality. However, traditional sedimentation bacteria detection methods mainly rely on manual operation. This method not only requires frequent shutdowns but also increases the risk of contamination of the clean environment by personnel operation. In addition, limited by the frequency of manual operation, the overall equipment cannot meet the requirements of continuous petri dish microorganism detection, that is, the overall detection efficiency is relatively low.

[0003] Therefore, an auxiliary device for detecting microorganisms in petri dishes in a clean room and a method for using the same are needed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an auxiliary device for detecting microorganisms in petri dishes in a clean room and a method for using the same, which are used to realize the closed-loop control of petri dish storage, transfer, lid opening, detection, and lid closing, so as to eliminate the risk of human contamination while meeting the requirements of continuous detection and achieving the purpose of improving the detection rate.

[0005] To solve the above technical problems, the present invention provides an auxiliary device for detecting microorganisms in petri dishes in a clean room, including:

[0006] A lifting storage rack that can move in the vertical direction and has a plurality of stacked and independently arranged placement trays in the vertical direction, and the placement trays are used to carry the petri dish body;

[0007] An operation table is arranged on one side of the lifting storage rack;

[0008] Among them, under the lifting power of the lifting storage rack, a plurality of the placement trays can all be lifted to the same horizontal plane as the operation table and fit together in sequence;

[0009] A transfer mechanism is used to transfer the petri dish body between the placement tray and the operation table;

[0010] Among them, a positioning chamber can be formed between the transfer mechanism and the operation table for limiting the petri dish body;

[0011] A flip mechanism is arranged on the side of the operation table away from the lifting storage rack and is used to open or close the lid of the petri dish body located in the positioning chamber.

[0012] Further, a limiting baffle is detachably mounted on the upper surface of one end of the operation table away from the lifting storage rack;

[0013] One side of the limiting baffle in contact with the culture dish body is arranged in an arc-shaped structure;

[0014] When the transfer mechanism pushes the culture dish body to abut and fit with the limiting baffle, a positioning chamber is formed between the transfer mechanism and the limiting baffle.

[0015] Further, arc-shaped diversion protrusions with the same curvature are arranged at the edge positions of the operation table and the edge positions of the placing trays, and a diversion fence can be formed by enclosing between the two diversion protrusions;

[0016] When the transfer mechanism pushes the culture dish body, the culture dish body can move along the diversion fence;

[0017] The limiting baffle is arranged at the end of the diversion protrusion on the operation table.

[0018] Further, the transfer mechanism has a U-shaped clamping area in the horizontal plane, and the movement of the culture dish body is completed by rotation, and the inner diameter of the U-shaped clamping area is larger than the outer diameter of the placing tray, so that a plurality of the placing trays can all penetrate into or out of the U-shaped clamping area in the vertical direction.

[0019] Further, the transfer mechanism includes a fixed column and a lever with the U-shaped clamping area;

[0020] The lever is rotatably mounted at the end of the fixed column through a driving member, and reciprocally swings between the chamber formed between two adjacent placing trays and the operation table.

[0021] Further, the lever includes a main body portion and two extending portions that enclose the U-shaped clamping area with the main body portion;

[0022] One of the extending portions is also used to form the positioning chamber with the operation table.

[0023] Further, the flip cover mechanism includes a flip chuck and a plurality of cylindrical claws;

[0024] The flip chuck is rotatably mounted on one side of the operation table away from the lifting storage rack, and can be flipped to a horizontal state or a vertical state;

[0025] A plurality of the cylindrical claws are arranged inside the flip chuck and are used for clamping with the cover body of the culture dish body, and a semi-circular stepped chamber is formed by surrounding between the plurality of cylindrical claws;

[0026] Wherein, when the flipping chuck is in a horizontal state, the opening direction of the semi-circular stepped chamber faces the placing tray, and the center of the semi-circular stepped chamber and the center of the petri dish body located in the positioning chamber are in the same vertical plane.

[0027] Further, the cylindrical jaws are of a stepped structure, and the outer diameter increases in the direction away from the flipping chuck;

[0028] The maximum inner diameter of the semi-circular stepped chamber matches the outer diameter of the lid of the petri dish body, and the minimum inner diameter of the semi-circular stepped chamber matches the outer diameter of the box body of the petri dish body.

[0029] Further, the flip mechanism further includes a connecting rod assembly, and both ends of the connecting rod assembly are respectively connected to the flipping chuck and an external driving member, for controlling the flipping chuck to switch between a horizontal state and a vertical state.

[0030] On the other hand, the present invention also proposes a method for using an auxiliary device for detecting microorganisms in a petri dish in a clean room, including the auxiliary device for detecting microorganisms in a petri dish in the above embodiment, specifically including the following steps:

[0031] S1. Control the lowermost placing tray and the operating table to be in the same horizontal plane and fit together;

[0032] S2. Drive the transfer mechanism to move the petri dish body on the placing tray to the operating table and place the petri dish body in the positioning chamber to complete the limiting;

[0033] S3. Control the flip mechanism to open the lid of the petri dish body, and complete the detection of microorganisms in the petri dish body through the detection component;

[0034] S4. After the detection is completed, control the flip mechanism to close the lid of the petri dish body, and drive the transfer mechanism to transfer the detected petri dish body to the corresponding placing tray;

[0035] S5. Control the lifting storage rack to move downward in the vertical direction, so that the next placing tray and the operating table are in the same horizontal plane and fit together;

[0036] S6. Repeat steps S2 - S5 until the detection of all petri dish bodies on the placing trays is completed.

[0037] Compared with the prior art, the present invention has at least the following beneficial effects:

[0038] By setting up a lifting storage rack with multiple stacked and independently arranged placement trays in the vertical direction as the temporary storage area for the petri dish body, and setting up an operating table on its side as the opening detection area for the petri dish body, and also by setting up a transfer mechanism and a flip cover mechanism to respectively realize the movement of the petri dish body between the temporary storage area and the opening detection area and the opening or closing of the cover body. That is, when it is necessary to detect the petri dish body, the transfer mechanism can be used to transfer the petri dish body in the temporary storage area to the opening detection area, and then the positioning chamber formed between the transfer mechanism and the operating table is used to complete the limit fixation of the petri dish body. Then, the flip cover mechanism is used to complete the mechanical opening of the cover body and the closing after the detection. Finally, with the continuous feeding function of the lifting storage rack, the full process automation control function of the petri dish body from storage, positioning, opening, detection to closing the cover is realized, without manual operation, so as to eliminate the pollution risk brought by human operation. Correspondingly, it can also meet the demand for continuous detection and achieve the purpose of improving the detection rate. Description of the Drawings

[0039] Figure 1 FIG. is a schematic diagram of the overall structure of the auxiliary device for detecting microorganisms in petri dishes in a clean room in the first embodiment of the present invention;

[0040] Figure 2 FIG. is a schematic diagram of a partial structure of the auxiliary device for detecting microorganisms in petri dishes in a clean room in the first embodiment of the present invention;

[0041] Figure 3 FIG. is a schematic diagram of a partial structure of the auxiliary device for detecting microorganisms in petri dishes in a clean room in the first embodiment of the present invention from another perspective;

[0042] Figure 4 FIG. is a schematic diagram of a partial structure of the operating table, transfer mechanism and flip cover mechanism of the auxiliary device for detecting microorganisms in petri dishes in a clean room in the first embodiment of the present invention when opening the cover of the petri dish body;

[0043] Figure 5 FIG. is a schematic diagram of a partial structure of the connection between the operating table and the flip cover mechanism of the auxiliary device for detecting microorganisms in petri dishes in a clean room in the first embodiment of the present invention.

[0044] Reference Numerals in the Drawings:

[0045] 1. Lifting storage rack;

[0046] 2. Placement tray;

[0047] 3. Operating table; 31. Limit baffle;

[0048] 4. Transfer mechanism; 41. Fixed column; 42. Poking rod;

[0049] 5. Flip cover mechanism; 51. Flip chuck; 52. Cylindrical claw; 53. Link assembly;

[0050] 6. Petri dish body

[0051] 7. Flow guiding protrusion Detailed implementation manners

[0052] The following will describe in more detail the auxiliary device for detecting microorganisms in a Petri dish in a clean room and its usage method according to the present invention with reference to the schematic diagrams. The preferred embodiments of the present invention are shown, and it should be understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as a broad guidance for those skilled in the art and not as a limitation to the present invention.

[0053] In the following paragraphs, the present invention will be described more specifically by way of example with reference to the accompanying drawings. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the objectives of the embodiments of the present invention.

[0054] Embodiment 1

[0055] As Figures 1 to 5 shown, an auxiliary device for detecting microorganisms in a Petri dish in a clean room according to an embodiment of the present invention includes:

[0056] A lifting storage rack 1, which can move in the vertical direction and has a plurality of stacked and independently arranged placing trays 2 in the vertical direction. The placing trays 2 are used to carry the Petri dish body 6. That is, the lifting storage rack 1 is used as a temporary storage area for the Petri dish body 6 to facilitate subsequent opening and detection.

[0057] It should be noted that in other embodiments, the lifting storage rack 1 can also drive the placing tray 2 to be connected with other conveying components (not shown in the figure) to complete the conveying supply of the Petri dish body 6 to be detected and the output of the Petri dish body 6 after detection, so as to realize the function of continuous detection of the Petri dish body 6.

[0058] An operating table 3, which is arranged on one side of the lifting storage rack 1 and is used as an opening and detection area for the Petri dish body 6.

[0059] Among them, under the lifting power of the lifting storage rack 1, a plurality of the placing trays 2 can all be lifted to be in the same horizontal plane as the operating table 3 and fit together in sequence. That is, a channel can be formed between the placing tray 2 and the operating table 3 for the transfer of the Petri dish body 6.

[0060] Transfer mechanism 4 is used to transfer the culture dish body 6 between the placement tray 2 and the operation table 3. That is, by setting the transfer mechanism 4, the untested culture dish body 6 is input from the temporary storage area to the lid-opening detection area, or the tested culture dish body 6 is input from the lid-opening detection area to the temporary storage area, so as to realize the automatic transfer operation.

[0061] It should also be noted that a positioning chamber can be formed between the transfer mechanism 4 and the operation table 3, which is used to limit the culture dish body 6, so that during the subsequent lid-opening process, the box body of the culture dish body 6 can be positioned to prevent the box body and the lid body from moving synchronously, resulting in the situation where the lid cannot be opened.

[0062] Flip cover mechanism 5 is arranged on the side of the operation table 3 away from the lifting storage rack 1, and is used to open or close the lid of the culture dish body 6 located in the positioning chamber.

[0063] Among them, when the flip cover mechanism 5 opens the lid of the culture dish body 6, it can cooperate with other transmission mechanisms to control the detection component (not shown in the figure) to move to detect the culture medium in the box body of the culture dish body 6. After the detection is completed, the flip cover mechanism 5 closes the lid of the culture dish body 6, and is transferred to the corresponding placement tray 2 by the transfer mechanism 4, and the culture dish body 6 on the next placement tray 2 is also transferred by the transfer mechanism 4 to repeat the above detection process, so as to meet the requirement of continuous detection of the culture dish body 6 and achieve the purpose of improving the detection rate.

[0064] In a specific example, the detection component can be set as a colony counter, which mainly realizes the automatic identification of microorganisms and colony counting based on the imaging analysis method. This is the prior art, so it will not be elaborated here.

[0065] By setting the lifting storage rack 1 with multiple stacked and independently arranged placement trays 2 in the vertical direction as the temporary storage area of the culture dish body 6, and setting the operation table 3 on its side as the lid-opening detection area of the culture dish body 6, and also setting the transfer mechanism 4 and the flip cover mechanism 5 to respectively realize the movement of the culture dish body 6 between the temporary storage area and the lid-opening detection area and the opening or closing of the lid. That is, when it is necessary to detect the culture dish body 6, the transfer mechanism 4 can transfer the culture dish body 6 in the temporary storage area to the lid-opening detection area, and then complete the limit fixation of the culture dish body 6 by means of the positioning chamber formed between the transfer mechanism 4 and the operation table 3. Then, the flip cover mechanism 5 is used to complete the mechanical opening and closing of the lid after the detection. Finally, in cooperation with the continuous feeding function of the lifting storage rack 1, the full-process automatic control function of the culture dish body 6 from storage, positioning, lid-opening, detection to lid-closing is realized, without manual operation, so as to eliminate the pollution risk brought by manual operation. Correspondingly, it can also meet the requirement of continuous detection and achieve the purpose of improving the detection rate.

[0066] In this embodiment, the operating table 3 is further defined to better cooperate with the transfer mechanism 4 to position the culture dish body 6, so that when the culture dish body 6 receives the flipping power of the flipping mechanism 5, its box body will not move synchronously with the cover body, ensuring the normal operation of the opening operation.

[0067] Specifically, a limit baffle 31 is detachably installed on the upper surface of one end of the operating table 3 away from the lifting storage rack 1.

[0068] Wherein, the side of the limit baffle 31 in contact with the culture dish body 6 is set to an arc-shaped structure, and the arc-shaped structure is adapted to the culture dish body 6.

[0069] When the transfer mechanism 4 pushes the culture dish body 6 to abut and fit with the limit baffle 31, a positioning chamber is formed between the transfer mechanism 4 and the limit baffle 31. That is, in this state, a clamping force for clamping the box body of the culture dish body 6 will be formed between the transfer mechanism 4 and the limit baffle 31, so that the subsequent flipping operation can be carried out smoothly.

[0070] Preferably, a contact sensor is provided on the side of the limit baffle 31 in contact with the culture dish body 6, which is used to judge whether the culture dish body 6 is pushed in place by the transfer mechanism 4, prevent situations such as dislocation when the subsequent flipping mechanism 5 flips the cover, and improve the stability of the overall device during operation.

[0071] In a further embodiment, in order to enable the culture dish body 6 to move stably in the temporary storage area and the opening detection area without detachment, the operating table 3 and the placement tray 2 are further defined here.

[0072] Specifically, diversion protrusions 7 with the same arc curvature are provided at the edge positions of the operating table 3 and the placement tray 2, and a diversion fence can be formed by enclosing the two diversion protrusions 7, so that when the transfer mechanism 4 pushes the culture dish body 6, the culture dish body 6 can move along the diversion fence.

[0073] Wherein, the limit baffle 31 is arranged at the end of the diversion protrusion 7 on the operating table 3.

[0074] That is, under the guiding action of the diversion fence and the pushing force of the transfer mechanism 4, the culture dish body 6 can be smoothly moved to abut against the limit baffle 31 for the flipping operation.

[0075] In other embodiments, the transfer mechanism 4 is further defined to better drive the culture dish body 6 to move between the operating table 3 and the placement tray 2.

[0076] Specifically, the transfer mechanism 4 has a U-shaped clamping area in the horizontal plane and moves the culture dish body 6 by rotation.

[0077] Among them, the inner diameter of the U-shaped clamping area is larger than the outer diameter of the placement tray 2, so that multiple placement trays 2 can all penetrate into or out of the U-shaped clamping area in the vertical direction. This makes the setting of the transfer mechanism 4 not affect the normal lifting of the lifting storage rack 1. Correspondingly, the function of continuous feeding (i.e., the culture dish body 6) can be realized through the cooperation of the transfer mechanism 4 and the lifting storage rack 1, so as to achieve the purpose of fully automatic control of the whole process of the culture dish body 6 from storage, positioning, opening the lid, detecting, and closing the lid.

[0078] In this embodiment, a specific transfer mechanism 4 is proposed to realize the transfer of the culture dish body 6 without interfering with the lifting of the lifting storage rack 1.

[0079] Specifically, the transfer mechanism 4 includes a fixed column 41 and a lever 42 having the U-shaped clamping area.

[0080] The lever 42 is rotatably installed at the end of the fixed column 41 through a driving member (such as a rotating motor) and swings reciprocally between the chambers formed between adjacent placement trays 2 and the operation table 3.

[0081] It should be particularly noted that the lever 42 includes a main body portion and two extending portions that enclose the U-shaped clamping area with the main body portion.

[0082] And, as Figure 4 shown, one of the extending portions is also used to form the positioning chamber with the operation table 3, that is, the clamping force formed between one extending portion and the limit baffle 31 is used to limit the box body of the culture dish body 6.

[0083] As Figure 2 and Figure 5 shown, in other embodiments, a specific flip cover mechanism 5 is also proposed to improve the opening and closing effects of the cover of the culture dish body 6.

[0084] It should be noted that in the prior art, the culture dish body 6 includes a box body and a cover, and the outer diameter of the cover is larger than the inner diameter of the box body, so that when the cover is clamped outside the box body, a stepped surface can be formed. In this embodiment, the flip cover mechanism 5 mainly realizes the flip function by forming a clamping connection with the stepped surface.

[0085] Specifically, the flip cover mechanism 5 includes a flip chuck 51 and a plurality of cylindrical claws 52.

[0086] Among them, the flipping chuck 51 is rotatably installed on the side of the operating table 3 away from the lifting storage rack 1 and can be flipped to a horizontal state or a vertical state.

[0087] A plurality of the cylindrical chucks 52 are arranged inside the flipping chuck 51 (i.e., on the side facing the culture dish body 6) and are used for clamping with the cover of the culture dish body 6. A semi-circular stepped chamber is formed around the plurality of cylindrical chucks 52, so that it can abut against the stepped surface formed by the box body and the cover of the culture dish body 6 to complete the cover flipping operation.

[0088] In addition, when the flipping chuck 51 is in a horizontal state, the opening direction of the semi-circular stepped chamber faces the placing tray 2, and the center of the semi-circular stepped chamber and the center of the culture dish body 6 located in the positioning chamber are located in the same vertical plane, so that the transfer mechanism 4 can directly input the culture dish body 6 into the semi-circular stepped chamber from the opening, ensuring that the presence of the cylindrical chucks 52 will not interfere with the transfer of the culture dish body 6, enabling the components to operate in coordination.

[0089] It should also be noted that at least three cylindrical chucks 52 are provided, and in this embodiment, preferably four are provided.

[0090] Among them, the cylindrical chuck 52 has a stepped structure, and the outer diameter increases in the direction away from the flipping chuck 51, so that a semi-circular stepped chamber can be formed between the plurality of cylindrical chucks 52 to complete the opening or closing of the cover of the culture dish body 6.

[0091] It should also be noted that the maximum inner diameter of the semi-circular stepped chamber matches the outer diameter of the cover of the culture dish body 6, and the minimum inner diameter of the semi-circular stepped chamber matches the outer diameter of the box body of the culture dish body 6. Even when the culture dish body 6 is under the pushing force of the transfer mechanism 4, while further ensuring that the culture dish body 6 will not interfere with the cylindrical chucks 52, it can also make the stepped surface between the box body and the cover of the culture dish body 6 abut against the inner wall of the semi-circular stepped chamber formed by the plurality of cylindrical chucks 52, facilitating the subsequent cover flipping operation.

[0092] In other embodiments, the cylindrical chuck 52 can also be set as a suction cup structure or an electric telescopic jaw structure, which is prior art. Compared with the above method, in this embodiment, by adopting the semi-circular stepped chamber formed by a plurality of cylindrical chucks 52, the cover flipping operation can be completed without the input of an additional power source (such as a gas source or electricity), reducing costs while achieving a more stable purpose.

[0093] In other embodiments, the flip cover mechanism 5 further includes a link assembly 53. The two ends of the link assembly 53 are respectively connected to the flipping chuck 51 and an external driving member, and are used to control the switching of the flipping chuck 51 between a horizontal state and a vertical state. Among them, the driving member and the link assembly 53 cooperate to realize the control of the deflection of the flipping chuck 51. This is a conventional technical means in the prior art, so it will not be elaborated here.

[0094] As Figure 1 shown, in other embodiments, the auxiliary device for detecting microorganisms in a culture dish in a clean room further includes a support base. The lifting storage rack 1, the operation table 3, and the transfer mechanism 4 are all arranged on the support base, and a control driving member for controlling the lifting operation of the lifting storage rack 1 and the operation of the flip cover mechanism 5 is further arranged on the support base.

[0095] In a specific example, the control driving member includes a screw drive device and a cylinder. The screw drive device is used for lifting the lifting storage rack 1, and the output end of the cylinder is movably connected to the link assembly 53, and is used to complete the deflection control of the flipping chuck 51 in a lifting manner.

[0096] Embodiment 2

[0097] On the basis of Embodiment 1, this embodiment further proposes a usage method of the auxiliary device for detecting microorganisms in a culture dish in a clean room, including the auxiliary device for detecting microorganisms in a culture dish in a clean room described in Embodiment 1, and specifically includes the following steps:

[0098] S1. Control the lowermost placement tray 2 and the operation table 3 to be on the same horizontal plane and fit together;

[0099] S2. Drive the transfer mechanism 4 to move the culture dish body 6 on the placement tray 2 to the operation table 3, and make the culture dish body 6 located in the positioning chamber to complete the limiting;

[0100] S3. Control the flip cover mechanism 5 to open the cover of the culture dish body 6, and complete the detection of microorganisms in the culture dish body 6 through the detection component;

[0101] S4. After the detection is completed, control the flip cover mechanism 5 to close the cover of the culture dish body 6, and drive the transfer mechanism 4 to transfer the detected culture dish body 6 to the corresponding placement tray 2;

[0102] S5. Control the lifting storage rack 1 to move downward in the vertical direction, so that the next placement tray 2 and the operation table 3 are on the same horizontal plane and fit together;

[0103] S6. Repeat steps S2 - S5 until the detection of all culture dish bodies 6 on the placement trays 2 is completed.

[0104] Through the above steps, the function of automatic control for the whole process of the culture dish body 6 from storage, positioning, lid opening, detection to lid closing is realized, without manual operation, so as to eliminate the pollution risk brought by manual operation. Correspondingly, the demand for continuous detection can also be met, and the purpose of improving the detection rate can be achieved.

[0105] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and its equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A clean room culture dish microorganism detection auxiliary device, characterized in that: include: A lifting storage rack (1) is movable in a vertical direction and has a plurality of stacked and independently arranged placement trays (2) in the vertical direction, wherein the placement trays (2) are used to carry a culture dish body (6); An operating table (3) is arranged on one side of the lifting storage rack (1); Wherein, under the lifting power of the lifting storage rack (1), the plurality of placement trays (2) can be lifted and lowered in sequence to be located in the same horizontal plane as the operating table (3) and to fit in with each other; A transfer mechanism (4) for transferring the culture dish body (6) between the placement tray (2) and the operating table (3); Wherein, a positioning chamber can be formed between the transfer mechanism (4) and the operating table (3) for limiting the position of the culture dish body (6); A cover flip mechanism (5) is arranged on a side of the operating table (3) away from the lifting storage rack (1) and is used to open or close the cover of the culture dish body (6) located in the positioning chamber.

2. The clean room culture dish microorganism detection auxiliary device according to claim 1, characterized in that: A limit baffle (31) is detachably mounted on the upper surface of one end of the operating table (3) away from the lifting storage rack (1); The side of the limit baffle (31) in contact with the culture dish body (6) is configured as an arc-shaped structure; When the transfer mechanism (4) pushes the culture dish body (6) to abut against the limit baffle (31), the positioning chamber is formed between the transfer mechanism (4) and the limit baffle (31).

3. The clean room culture dish microorganism detection auxiliary device according to claim 2, characterized in that: The edge of the operating table (3) and the edge of the tray (2) are both provided with flow-guiding protrusions (7) with the same arc curvature, and the two flow-guiding protrusions (7) can be combined to form a flow-guiding fence; When the transfer mechanism (4) pushes the culture dish body (6), the culture dish body (6) can move along the guide fence; The limit baffle (31) is arranged at the end of the flow guide protrusion (7) on the operating table (3).

4. The clean room culture dish microorganism detection auxiliary device according to claim 1, characterized in that: The transfer mechanism (4) has a U-shaped clamping area in a horizontal plane, and moves the culture dish body (6) by rotation. The inner diameter of the U-shaped clamping area is larger than the outer diameter of the placement tray (2), so that a plurality of placement trays (2) can pass into or out of the U-shaped clamping area in a vertical direction.

5. The clean room culture dish microorganism detection auxiliary device according to claim 4, characterized in that: The transfer mechanism (4) comprises a fixed column (41) and a shifting rod (42) having the U-shaped clamping area; The lever (42) is rotatably mounted on the end of the fixed column (41) via a driving member, and reciprocates between a chamber formed between two adjacent placement trays (2) and the operating table (3).

6. The clean room culture dish microorganism detection auxiliary device according to claim 5, characterized in that: The lever (42) comprises a main body and two extensions which surround the main body to form the U-shaped clamping area; One of the extensions is also used to form the positioning chamber with the operating table (3).

7. The clean room culture dish microorganism detection auxiliary device according to claim 1, characterized in that: The flip cover mechanism (5) comprises a flip chuck (51) and a plurality of cylindrical claws (52); The flip chuck (51) is rotatably mounted on a side of the operating table (3) away from the lifting storage rack (1), and can be flipped to a horizontal state or a vertical state; The plurality of cylindrical clamping claws (52) are arranged on the inner side of the flip chuck (51) and are used to be clamped with the cover of the culture dish body (6), and a semicircular stepped chamber is formed between the plurality of cylindrical clamping claws (52); When the flip chuck (51) is in a horizontal state, the opening direction of the semicircular stepped chamber faces the placement tray (2), and the center of the semicircular stepped chamber and the center of the culture dish body (6) located in the positioning chamber are located in the same vertical plane.

8. The clean room culture dish microorganism detection auxiliary device according to claim 7, characterized in that: The cylindrical claw (52) has a stepped structure, and its outer diameter increases in a direction away from the flip chuck (51); The maximum inner diameter of the semicircular stepped chamber matches the outer diameter of the cover of the culture dish body (6), and the minimum inner diameter of the semicircular stepped chamber matches the outer diameter of the box of the culture dish body (6).

9. The clean room culture dish microorganism detection auxiliary device according to claim 7, characterized in that: The flip cover mechanism (5) further comprises a connecting rod assembly (53), the two ends of which are respectively connected to the flip chuck (51) and an external driving member, and are used to control the flip chuck (51) to switch between a horizontal state and a vertical state.

10. A method for using a culture dish microorganism detection auxiliary device in a clean room, characterized in that: The device comprises a clean room culture dish microorganism detection auxiliary device as claimed in any one of claims 1 to 9, and specifically comprises the following steps: S1, controlling the tray (2) and the operating table (3) at the bottom to be located at the same level and to fit each other; S2, driving the transfer mechanism (4) to move the culture dish body (6) on the placement tray (2) to the operating table (3), and positioning the culture dish body (6) in the positioning chamber to complete the positioning; S3, controlling the cover flap mechanism (5) to open the cover of the culture dish body (6), and completing the detection of microorganisms in the culture dish body (6) through the detection component; S4, after the test is completed, the cover flap mechanism (5) is controlled to close the cover of the culture dish body (6), and the transfer mechanism (4) is driven to transfer the tested culture dish body (6) to the corresponding placement tray (2); S5, controlling the lifting storage rack (1) to move downward in the vertical direction, so that the next placement tray (2) and the operating table (3) are located on the same horizontal plane and fit each other; S6. Repeat steps S2-S5 until all the culture dish bodies (6) placed on the tray (2) are inspected.

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