Low-temperature anaerobic workstation

Abstract

The invention belongs to the technical field of anaerobic microorganisms, and particularly relates to a low-temperature anaerobic workstation which comprises an operation chamber, a sealing baffle is rotatably arranged on the front end face of the operation chamber, sealing silica gel is arranged on the edge of the sealing baffle, two operation holes are formed in the middle of the front end face of the sealing baffle, and the operation holes are communicated with the operation chamber. An operation hole is formed in the operation chamber, a rubber soft sleeve sleeves the inner wall of the operation hole, an incubator is arranged in the operation chamber, a nitrogen generator and a temperature controller are mounted in the operation chamber and located on the side of the incubator, and a conveying mechanism is arranged in the incubator. The nitrogen generator is controlled to reduce the oxygen concentration in the operating chamber to a required anaerobic or low-oxygen level, then the temperature in the incubator is adjusted to a set low-temperature range through the temperature controller, and then a worker can perform operations such as inoculation, culture and observation of a sample through the operating hole and the rubber soft sleeve. And the sample culture dishes are conveyed into the incubator through the conveying mechanism.

Description

Technical Field

[0001] The present invention belongs to the technical field of anaerobic microorganisms, and specifically relates to a low-temperature anaerobic workstation. Background Art

[0002] A low-temperature anaerobic workstation is a device that can provide an anaerobic or hypoxic environment under low-temperature conditions (usually in the range from room temperature to below normal temperature). By controlling parameters such as oxygen concentration, temperature, and humidity, it provides ideal growth conditions for the cultivation and research of anaerobic microorganisms, cells, etc.

[0003] Some solutions have also been proposed in the prior art. For example, a Chinese patent application with the publication number CN214361378U discloses an anaerobic high-low temperature box, which relates to the technical field of anaerobic microorganisms, aiming to solve the problem that when detecting the high and low temperatures of anaerobic microorganisms, if the storage vessel of anaerobic microorganisms is close to the edge of the device, the temperature of the anaerobic microorganisms will deviate and the actual measurement effect cannot be achieved.

[0004] Although the above technical solution solves the problem that the temperature of anaerobic microorganisms will deviate and the actual measurement effect cannot be achieved, there are still other problems in specific use. For example, the current anaerobic workstations are difficult to provide a low-temperature anaerobic environment, and it is also necessary for the staff to manually place the culture dishes in the incubator, which is rather inconvenient to operate.

[0005] Therefore, the present invention provides a low-temperature anaerobic workstation. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A low-temperature anaerobic workstation according to the present invention includes an operation chamber. A sealing baffle is rotatably provided on the front end face of the operation chamber. Sealing silica gel is installed at the edge of the sealing baffle. Two operation holes are opened in the middle of the front end face of the sealing baffle. A rubber soft sleeve is sleeved on the inner wall of the operation hole. A culture box is provided inside the operation chamber. A nitrogen generator and a temperature controller are installed on the side of the culture box inside the operation chamber. A conveying mechanism is arranged inside the culture box, and the conveying mechanism is used to automatically convey the culture dishes into the culture box.

[0008] Preferably, the conveying mechanism includes a sealing plate slidably arranged above the culture box. The sealing plate is used to block the opening above the culture box. A first ratchet plate is fixedly installed on the lower end face of the sealing plate. A first gear is rotatably arranged inside the culture box. The first gear is meshed with the first ratchet plate. The first gear is connected to the output end of an external driving motor.

[0009] Preferably, a limiting groove adapted to the first ratchet plate is provided inside the incubator. A transfer rack is provided inside the incubator. A linkage unit is provided outside the first gear. The linkage unit is used to drive the transfer rack to move synchronously. A plurality of sample culture dishes are placed above the transfer rack.

[0010] Preferably, a second ratchet plate is slidably provided inside the incubator and near one side of the transfer rack. The transfer rack is connected to the second ratchet plate through a connecting bracket. A second gear is rotatably provided inside the incubator. The second gear is meshed and connected with the second ratchet plate. The linkage unit includes a belt sleeved outside the first gear. The first gear is connected to the second gear through the belt. A plurality of culture dish placement plates are provided inside the incubator; during operation, when the first gear rotates, the first gear will drive the second gear to rotate through the belt at the same time. The second gear will drive the second ratchet plate meshed with it to move. The second ratchet plate will drive the transfer rack connected to it to move, that is, the second ratchet plate will drive the transfer rack and the culture dish placement plate to move upward. Then the staff can directly place the sample culture dish inside the culture dish placement plate, which is convenient for automatically transporting the sample culture dish into the incubator subsequently.

[0011] Preferably, a connecting bracket is installed on the side wall of the second ratchet plate, and an electric telescopic rod is installed on the side of the connecting bracket. The telescopic end of the electric telescopic rod is connected to the side of the transfer rack; during operation, when the sample culture dish is placed inside the culture dish placement plate, at this time, reverse the rotation of the first gear, so that the first gear drives the first ratchet plate to move to the initial state, that is, the upper part of the incubator will be gradually sealed by the sealing plate, and the first gear will drive the second gear to reverse through the belt. The second gear will drive the second ratchet plate to move downward, so that the second ratchet plate drives the transfer rack and the culture dish placement plate to move downward, and makes the transfer rack and the culture dish placement plate return to the initial position. In this way, the automatic placement process of the sample culture dish is realized, which improves the beneficial effect of the low-temperature anaerobic workstation on the culture of anaerobic microorganisms, cells, etc., and provides ideal growth conditions for subsequent research.

[0012] Preferably, a plurality of connecting columns are installed on the side of the transfer rack away from the electric telescopic rod. Two groups of fixing rings are rotatably provided on the side wall of each connecting column. A placement groove is provided between the two groups of fixing rings. The placement groove is used for temporarily storing the culture dish and transporting it into the culture dish placement plate.

[0013] Preferably, arc-shaped baffles are installed on the outer side walls of the two groups of fixing rings. Grooves are provided inside the arc-shaped baffles. A plurality of groups of limiting columns are slidably installed on the inner wall of the incubator. Each group of limiting columns and the arc-shaped baffles are arranged in one-to-one correspondence. The limiting columns and the arc-shaped baffles are arranged on the same horizontal plane.

[0014] Preferably, a limiting spring is installed on the side wall of the fixed ring, and one side of the limiting spring away from the fixed ring is connected to the side wall of the connecting column; during operation, when the side wall of the arc-shaped baffle contacts the end of the limiting column, under the pressure of the end of the limiting column on the side wall of the arc-shaped baffle, when the fixed ring rotates, the fixed ring will squeeze the limiting spring on its side wall. After the sample culture dish is placed, when the telescopic end of the electric telescopic rod drives the transfer rack, the connecting column and the fixed ring to move, the fixed ring will move away from the limiting column, that is, the limiting column no longer presses against the arc-shaped baffle. Under the elastic force of the limiting spring, it is convenient for the fixed ring to return to its initial position, thus facilitating the placement of subsequent sample culture dishes.

[0015] Preferably, an annular groove is formed inside each culture dish placement plate, and a cleaning plate is slidably arranged inside the annular groove. A cleaning cloth is sleeved on the middle side of the outer peripheral surface of the cleaning plate, and the cleaning cloth is an alcohol cloth. A fixed bracket is installed on the side wall of the cleaning plate, and one side of the fixed bracket away from the cleaning plate is connected to the limiting column; during operation, when the limiting column is subjected to the pressure of the arc-shaped baffle, since the limiting column is slidably arranged inside the incubator, the limiting column will first move. The limiting column will drive the fixed bracket and the cleaning plate to move, so that the cleaning plate and the cleaning cloth on its surface move on the inner wall of the culture dish placement plate, and the alcohol cleaning cloth first cleans the culture dish placement plate, thus further improving the growth environment of the culture dish.

[0016] Preferably, a limiting seat adapted to the limiting column is arranged inside the incubator, and a telescopic spring is arranged at the connection between the limiting column and the limiting seat.

[0017] The beneficial effects of the present invention are as follows: 1. For the low-temperature anaerobic workstation of the present invention, when the first gear rotates, the first gear will simultaneously drive the second gear to rotate through a belt. The second gear will drive the ratchet plate two meshed with it to move, and the ratchet plate two will drive the transfer rack connected to it to move, that is, the ratchet plate two will drive the transfer rack and the culture dish placement plate to move upward. Subsequently, the staff can directly place the sample culture dish inside the culture dish placement plate, which is convenient for automatically transporting the sample culture dish into the incubator later.

[0018] 2. For the low-temperature anaerobic workstation of the present invention, the ratchet plate two drives the transfer rack and the culture dish placement plate to move downward, and makes the transfer rack and the culture dish placement plate return to their initial positions. In this way, the automatic placement process of the sample culture dish is realized, which improves the beneficial effects of the low-temperature anaerobic workstation for culturing anaerobic microorganisms, cells, etc., and provides ideal growth conditions for subsequent research. Description of the Drawings

[0019] The present invention will be further described below with reference to the drawings.

[0020] Figure 1It is a perspective view of the present invention; Figure 2 It is a schematic diagram of the internal structure of the operation room in the present invention; Figure 3 It is a schematic diagram of the structure of the incubator in the present invention; Figure 4 It is a schematic diagram of the internal structure of the incubator in the present invention; Figure 5 It is a schematic diagram of the structure of the second ratchet plate in the present invention; Figure 6 It is a schematic diagram of the structure of the fixing ring in the present invention; Figure 7 It is a schematic diagram of the top view of the fixing ring in the present invention; Figure 8 It is a schematic diagram of the structure of the fixing ring after being opened at an angle in the present invention; Figure 9 It is a partial schematic diagram of the transfer rack in the present invention; Figure 10 It is a partial schematic diagram of the culture dish placement plate in the present invention; Figure 11 It is a partial schematic diagram of the limit post in the present invention.

[0021] In the figure: 1. Operation room; 2. Sealing baffle; 3. Operation hole; 4. Incubator; 401. Sealing plate; 5. Nitrogen generator; 6. Temperature controller; 7. First ratchet plate; 8. First gear; 801. Belt; 9. Transfer rack; 10. Second ratchet plate; 11. Second gear; 12. Culture dish placement plate; 13. Electric telescopic rod; 14. Connecting column; 15. Fixing ring; 16. Placing groove; 17. Arc-shaped baffle; 18. Limit post; 19. Limit spring; 20. Annular groove; 21. Cleaning plate; 22. Fixing bracket; 23. Limit retaining seat; 24. Telescopic spring. Detailed implementation manners

[0022] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0023] As Figures 1 to 6 shown, a low-temperature anaerobic workstation according to an embodiment of the present invention includes an operation room 1. A sealing baffle 2 is rotatably provided on the front end face of the operation room 1. Sealing silica gel is installed at the edge of the sealing baffle 2. Two operation holes 3 are opened in the middle of the front end face of the sealing baffle 2. A rubber soft sleeve is sleeved on the inner wall of the operation hole 3. An incubator 4 is provided inside the operation room 1. A nitrogen generator 5 and a temperature controller 6 are installed inside the operation room 1 and on the side of the incubator 4. A conveying mechanism is provided inside the incubator 4, and the conveying mechanism is used to automatically convey the culture dish into the incubator 4.

[0024] During operation, when specifically using the low-temperature anaerobic workstation in the embodiments of the present invention, first ensure that the inside of the workstation is clean, without debris and residues, and all equipment and systems can operate normally. Then control the nitrogen generator 5 to reduce the oxygen concentration inside the operation chamber 1 to the required anaerobic or hypoxic level. Then adjust the temperature inside the incubator 4 to the set low-temperature range through the temperature controller 6. Subsequently, the staff can perform operations such as inoculation, cultivation, and observation of samples through the operation hole 3 and the rubber soft sleeve, and convey the sample culture dish to the inside of the incubator 4 through the conveying mechanism.

[0025] The conveying mechanism includes a sealing plate 401 slidably arranged above the incubator 4. The sealing plate 401 is used to block the opening above the incubator 4. A first ratchet plate 7 is fixedly installed on the lower end surface of the sealing plate 401. A first gear 8 is rotatably arranged inside the incubator 4. The first gear 8 is meshed and connected with the first ratchet plate 7. The first gear 8 is connected to the output end of an external driving motor.

[0026] During operation, when the anaerobic environment has been formed and stabilized, at this time the sealing plate 401 is in the closed state, that is, this is the initial state. When it is necessary to convey the sample culture dish to the inside of the incubator 4, first control the external driving motor to drive the first gear 8 to rotate at this time. The first gear 8 drives the first ratchet plate 7 meshed with it to move. The first ratchet plate 7 drives the sealing plate 401 to move, so that the opening above the sealing plate 401 is opened. In this way, it is convenient to place the sample culture dish inside the incubator 4 subsequently. Moreover, at this time, the inside of the operation chamber 1 is already in a low-temperature anaerobic environment, which is beneficial to the cultivation and inoculation of the culture dish.

[0027] A limiting groove adapted to the first ratchet plate 7 is arranged inside the incubator 4. A transfer rack 9 is arranged inside the incubator 4. A linkage unit is arranged outside the first gear 8. The linkage unit is used to drive the transfer rack 9 to move synchronously. A plurality of sample culture dishes are placed above the transfer rack 9. During operation, when the first gear 8 rotates, the first gear 8 will simultaneously drive the transfer rack 9 to move through the linkage unit, so that the transfer rack 9 rises above the incubator 4. In this way, after the staff only places the sample culture dish above the transfer rack 9, it is convenient to automatically convey the sample culture dish to the inside of the incubator 4 subsequently, reducing the influence of the staff on the internal environment of the incubator 4, which is beneficial to the cultivation and observation of the sample. The limiting groove is designed to facilitate the movement of the first ratchet plate 7 and also facilitate the opening of the opening above the incubator 4.

[0028] A second ratchet plate 10 is slidably arranged inside the incubator 4 and close to one side of the transfer rack 9. The transfer rack 9 is connected to the second ratchet plate 10 through a connecting bracket. A second gear 11 is rotatably arranged inside the incubator 4. The second gear 11 is meshed and connected with the second ratchet plate 10. The linkage unit includes a belt 801 sleeved outside the first gear 8. The first gear 8 is connected to the second gear 11 through the belt 801. A plurality of culture dish placement plates 12 are arranged inside the incubator 4; During operation, when the first gear 8 rotates, the first gear 8 will simultaneously drive the second gear 11 to rotate through the belt 801. The second gear 11 will drive the second ratchet plate 10 meshed with it to move. The second ratchet plate 10 will drive the transfer rack 9 connected to it to move, that is, the second ratchet plate 10 will drive the transfer rack 9 and the culture dish placement plate 12 to move upward. Subsequently, the staff can directly place the sample culture dish inside the culture dish placement plate 12, which is convenient for automatically conveying the sample culture dish into the incubator 4 subsequently.

[0029] As Figures 4 to 8 shown, a connecting bracket is installed on the side wall of the second ratchet plate 10, and an electric telescopic rod 13 is installed on the side of the connecting bracket. The telescopic end of the electric telescopic rod 13 is connected to the side of the transfer rack 9; during operation, when the sample culture dish is placed inside the culture dish placement plate 12, at this time, reverse the rotation of the first gear 8, so that the first gear 8 drives the first ratchet plate 7 to move to the initial state, that is, the upper part of the incubator 4 will be gradually sealed by the sealing plate 401, and the first gear 8 will drive the second gear 11 to reverse through the belt 801. The second gear 11 will drive the second ratchet plate 10 to move downward, so that the second ratchet plate 10 drives the transfer rack 9 and the culture dish placement plate 12 to move downward, and makes the transfer rack 9 and the culture dish placement plate 12 return to the initial position. In this way, the automatic placement process of the sample culture dish is realized, which improves the beneficial effect of the low-temperature anaerobic workstation on the culture of anaerobic microorganisms, cells, etc., and provides ideal growth conditions for subsequent research.

[0030] A plurality of connecting columns 14 are installed on the side of the transfer rack 9 away from the electric telescopic rod 13. Two groups of fixing rings 15 are rotatably arranged on the side walls of each connecting column 14. A placing groove 16 is formed between the two groups of fixing rings 15. The placing groove 16 is used for temporarily storing the culture dish and conveying it into the interior of the culture dish placing plate 12. During operation, when the second ratchet plate 10 drives the transfer rack 9 and the culture dish placing plate 12 to move down to the initial position, at this time the sample culture dish is placed above the placing groove 16. Control the movement of the telescopic end of the electric telescopic rod 13, so that the telescopic end of the electric telescopic rod 13 drives the connecting column 14 and the fixing ring 15 to move, that is, multiple groups of fixing rings 15 and the placing groove 16 move towards the side close to the culture dish placing plate 12. When the placing groove 16 moves to the same vertical plane as the culture dish placing plate 12, stop the movement of the electric telescopic rod 13, so as to facilitate the subsequent conveying of the sample culture dish into the interior of the culture dish placing plate 12.

[0031] Arc-shaped baffles 17 are installed on the outer side walls of the two groups of fixing rings 15. Grooves are formed inside the arc-shaped baffles 17. A plurality of limiting columns 18 are slidably installed on the inner wall of the incubator 4. Each group of limiting columns 18 and the arc-shaped baffles 17 are arranged in one-to-one correspondence. The limiting columns 18 and the arc-shaped baffles 17 are arranged on the same horizontal plane. During operation, refer to the attached Figure 5 and Figure 6 As shown, when the second ratchet plate 10 drives the transfer rack 9 and the culture dish placing plate 12 to move down to the initial position, at this time the limiting columns 18 and the arc-shaped baffles 17 are on the same horizontal plane. When the telescopic end of the electric telescopic rod 13 drives the transfer rack 9 to move, the transfer rack 9 will drive the fixing rings 15 and the arc-shaped baffles 17 to move synchronously. Then the side wall of the arc-shaped baffle 17 will contact the end of the limiting column 18. Under the pressure of the end of the limiting column 18 on the side wall of the arc-shaped baffle 17, and the fixing rings 15 are rotatably arranged on the side wall of the connecting column 14, so the two fixing rings 15 will rotate at an angle away from each other, that is, rotate to the angle shown in the attached Figure 9 As shown, at this time the sample culture dish will fall from the separated fixing rings 15 into the interior of the culture dish placing plate 12 below, so as to realize the automatic placement process of the sample culture dish, ensure its sterile environment, and be beneficial to its growth.

[0032] A limiting spring 19 is installed on the side wall of the fixed ring 15, and one side of the limiting spring 19 away from the fixed ring 15 is connected to the side wall of the connecting column 14; during operation, when the side wall of the arc-shaped baffle 17 contacts the end of the limiting column 18, under the pressure of the end of the limiting column 18 on the side wall of the arc-shaped baffle 17, when the fixed ring 15 rotates, the fixed ring 15 will squeeze the limiting spring 19 on its side wall. After the sample culture dish is placed, when the telescopic end of the electric telescopic rod 13 drives the transfer rack 9, the connecting column 14 and the fixed ring 15 to move, the fixed ring 15 will move away from the limiting column 18, that is, the limiting column 18 no longer presses against the arc-shaped baffle 17. Under the elastic force of the limiting spring 19, it is convenient for the fixed ring 15 to return to its initial position, thus facilitating the placement of subsequent sample culture dishes.

[0033] As Figures 5 to 11 shown, an annular groove 20 is formed inside each culture dish placement plate 12, a cleaning plate 21 is slidably arranged inside the annular groove 20, a cleaning cloth is sleeved on the middle side of the outer peripheral surface of the cleaning plate 21, the cleaning cloth is an alcohol cloth, a fixed bracket 22 is installed on the side wall of the cleaning plate 21, and one side of the fixed bracket 22 away from the cleaning plate 21 is connected to the limiting column 18; during operation, when the limiting column 18 is subjected to the pressure of the arc-shaped baffle 17, since the limiting column 18 is slidably arranged inside the incubator 4, the limiting column 18 will first move, and the limiting column 18 will drive the fixed bracket 22 and the cleaning plate 21 to move, so that the cleaning plate 21 and the cleaning cloth on its surface move on the inner wall of the culture dish placement plate 12, so that the alcohol cleaning cloth first cleans the culture dish placement plate 12, thus further improving the growth environment of the culture dish.

[0034] A limiting seat 23 adapted to the limiting column 18 is arranged inside the incubator 4, and a telescopic spring 24 is arranged at the connection between the limiting column 18 and the limiting seat 23; during operation, referring to Figure 10 and Figure 11 shown, when the limiting column 18 moves, and the cleaning plate 21 and the cleaning cloth on its surface move on the inner wall of the culture dish placement plate 12, and when the limiting column 18 moves to contact the limiting seat 23, at this time the limiting column 18 no longer moves, and the telescopic spring 24 is in a compressed state. At the same time, the cleaning plate 21 has completed the cleaning of the culture dish placement plate 12, and under the pressure of the end of the limiting column 18 on the side wall of the arc-shaped baffle 17, the two fixed rings 15 will rotate in an angle of mutual separation, and the above steps of automatic dropping of the sample culture dish are realized; After one placement is completed, when the limiting column 18 is separated from the arc-shaped baffle 17, under the elastic force of the telescopic spring 24, the limiting column 18 will return to its initial position, thus facilitating its reuse in the future.

[0035] During operation, when specifically using the low-temperature anaerobic workstation in the embodiment of the present invention, first ensure that the interior of the workstation is clean, free of debris and residues, and all equipment and systems can operate normally. Then, control the nitrogen generator 5 to reduce the oxygen concentration inside the operation chamber 1 to the required anaerobic or hypoxic level. Next, adjust the temperature inside the incubator 4 to the set low-temperature range through the temperature controller 6. Subsequently, the staff can perform operations such as inoculation, cultivation, and observation of samples through the operation hole 3 and the rubber soft sleeve, and convey the sample culture dish to the inside of the incubator 4 through the conveying mechanism. When the anaerobic environment has been formed and stabilized, the sealing plate 401 is in the closed state at this time, that is, this is the initial state. When it is necessary to convey the sample culture dish to the inside of the incubator 4, first control the externally connected driving motor to drive the first gear 8 to rotate at this time. The first gear 8 drives the ratchet plate 7 engaged with it to move. The ratchet plate 7 drives the sealing plate 401 to move, so that the opening above the sealing plate 401 is opened. In this way, it is convenient to place the sample culture dish inside the incubator 4 subsequently. Moreover, the inside of the operation chamber 1 is already in a low-temperature anaerobic environment at this time, which is beneficial to the cultivation and inoculation of the culture dish. When the first gear 8 rotates, the first gear 8 will simultaneously drive the transfer rack 9 to move through the linkage unit, so that the transfer rack 9 rises above the incubator 4. In this way, after the staff only places the sample culture dish above the transfer rack 9, it is convenient to automatically convey the sample culture dish to the inside of the incubator 4 subsequently, reducing the influence of the staff on the internal environment of the incubator 4 and being beneficial to the cultivation and observation of the sample. The limit groove is designed to facilitate the movement of the ratchet plate 7 and also facilitate the opening of the opening above the incubator 4. When the first gear 8 rotates, the first gear 8 will simultaneously drive the second gear 11 to rotate through the belt 801. The second gear 11 will drive the ratchet plate 10 engaged with it to move. The ratchet plate 10 will drive the transfer rack 9 connected to it to move, that is, the ratchet plate 10 will drive the transfer rack 9 and the culture dish placement plate 12 to move upward. Subsequently, the staff can directly place the sample culture dish inside the culture dish placement plate 12, which is convenient to automatically convey the sample culture dish to the inside of the incubator 4 subsequently. When the sample culture dish is placed inside the culture dish placement plate 12, reverse the rotation of the first gear 8 at this time, so that the first gear 8 drives the ratchet plate 7 to move to the initial state, that is, the opening above the incubator 4 will gradually be closed by the sealing plate 401, and the first gear 8 will drive the second gear 11 to reverse through the belt 801. The second gear 11 will drive the ratchet plate 10 to move downward, so that the ratchet plate 10 drives the transfer rack 9 and the culture dish placement plate 12 to move downward, and makes the transfer rack 9 and the culture dish placement plate 12 return to the initial position. In this way, the automatic placement process of the sample culture dish is realized, improving the beneficial effect of this low-temperature anaerobic workstation on the cultivation of anaerobic microorganisms, cells, etc., and providing ideal growth conditions for subsequent research. Refer to the appendix Figure 5 and Figure 6As shown, when the ratchet plate II 10 drives the transfer rack 9 and the petri dish placement plate 12 to move down to the initial position, at this time, the limit post 18 and the arc-shaped baffle 17 are on the same horizontal plane. When the telescopic end of the electric telescopic rod 13 drives the transfer rack 9 to move, the transfer rack 9 will drive the fixed ring 15 and the arc-shaped baffle 17 to move synchronously. After that, the side wall of the arc-shaped baffle 17 will contact the end of the limit post 18. Under the pressure of the end of the limit post 18 on the side wall of the arc-shaped baffle 17, and the fixed ring 15 is rotatably arranged on the side wall of the connecting column 14, so the two fixed rings 15 will rotate in an angle away from each other, that is, rotate to the angle as shown in the appendix Figure 9 shown. At this time, the sample petri dish will fall from the separated fixed rings 15 into the interior of the lower petri dish placement plate 12, so as to realize the automatic placement process of the sample petri dish, ensure its sterile environment, and be beneficial to its growth; when the side wall of the arc-shaped baffle 17 will contact the end of the limit post 18, and the fixed ring 15 rotates under the pressure of the end of the limit post 18 on the side wall of the arc-shaped baffle 17, the fixed ring 15 will squeeze the limit spring 19 on its side wall. After the sample petri dish is placed, when the telescopic end of the electric telescopic rod 13 drives the transfer rack 9, the connecting column 14 and the fixed ring 15 to move, the fixed ring 15 will move away from the limit post 18, that is, the limit post 18 no longer presses against the arc-shaped baffle 17. Under the elastic force of the limit spring 19, it is convenient for the fixed ring 15 to return to the initial position, so as to facilitate the placement of subsequent sample petri dishes; Referring to the appendix Figure 10 and Figure 11 shown, when the limit post 18 moves, and the cleaning plate 21 and the cleaning cloth on its surface move on the inner wall of the petri dish placement plate 12, and when the limit post 18 moves to contact the limit seat 23, at this time, the limit post 18 no longer moves, and the telescopic spring 24 is in a compressed state. At the same time, the cleaning plate 21 has completed the cleaning of the petri dish placement plate 12, and under the pressure of the end of the limit post 18 on the side wall of the arc-shaped baffle 17, the two fixed rings 15 will rotate in an angle away from each other, and the above steps of automatic dropping of the sample petri dish are realized.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A low temperature anaerobic workstation, characterized in that: The invention comprises an operating room (1), wherein a sealing baffle (2) is rotatably provided on the front end surface of the operating room (1), sealing silica gel is installed at the edge of the sealing baffle (2), two operating holes (3) are provided in the middle of the front end surface of the sealing baffle (2), and the inner wall of the operating hole (3) is sleeved with a rubber soft sleeve, an incubator (4) is provided inside the operating room (1), a nitrogen generator (5) and a temperature controller (6) are installed inside the operating room (1) and on the side of the incubator (4), and a conveying mechanism is provided inside the incubator (4), and the conveying mechanism is used to automatically convey a culture dish to the inside of the incubator (4).

2. A low temperature anaerobic workstation according to claim 1, characterized in that: The conveying mechanism comprises a sealing plate (401) slidably arranged above the incubator (4), the sealing plate (401) being used to block an opening above the incubator (4), a ratchet plate 1 (7) being fixedly mounted on the lower end surface of the sealing plate (401), a gear 1 (8) being rotatably arranged inside the incubator (4), the gear 1 (8) being meshedly connected with the ratchet plate 1 (7), and the gear 1 (8) being connected to an output end of an external drive motor.

3. A low temperature anaerobic workstation according to claim 2, characterized in that: The incubator (4) is provided with a limit groove matched with the ratchet plate (7) inside, the incubator (4) is provided with a transfer rack (9) inside, the outer side of the gear (8) is provided with a linkage unit, the linkage unit is used to drive the transfer rack (9) to move synchronously, and a plurality of sample culture dishes are placed above the transfer rack (9).

4. A low temperature anaerobic workstation according to claim 3, characterized in that: A ratchet plate 2 (10) is slidably arranged inside the incubator (4) and on one side close to the transfer rack (9); the transfer rack (9) is connected to the ratchet plate 2 (10) via a connecting bracket; a gear 2 (11) is rotatably arranged inside the incubator (4); the gear 2 (11) and the ratchet plate 2 (10) are meshedly connected; the linkage unit comprises a belt (801) sleeved on the outside of the gear 1 (8); the gear 1 (8) is connected to the gear 2 (11) via the belt (801); and a plurality of culture dish placement plates (12) are arranged inside the incubator (4).

5. A low temperature anaerobic workstation according to claim 4, characterized in that: A connecting bracket is installed on the side wall of the second ratchet plate (10), an electric telescopic rod (13) is installed on the side of the connecting bracket, and the telescopic end of the electric telescopic rod (13) is connected to the side of the transfer frame (9).

6. A low temperature anaerobic workstation according to claim 5, characterized in that: A plurality of connecting columns (14) are installed on the side of the transfer rack (9) away from the electric telescopic rod (13), and two groups of fixing rings (15) are rotatably provided on the side wall of each of the connecting columns (14). A placement groove (16) is provided between the two groups of fixing rings (15), and the placement groove (16) is used to temporarily store the culture dishes and transport them to the inside of the culture dish placement plate (12).

7. A low temperature anaerobic workstation according to claim 6, characterized in that: The outer side walls of the two groups of fixing rings (15) are provided with arc-shaped baffles (17), and grooves are provided inside the arc-shaped baffles (17). The inner wall of the incubator (4) is slidably provided with a plurality of groups of limiting columns (18), and each group of limiting columns (18) and the arc-shaped baffles (17) are arranged in a one-to-one correspondence, and the limiting columns (18) and the arc-shaped baffles (17) are arranged on the same horizontal plane.

8. A low temperature anaerobic workstation according to claim 6, characterized in that: A limit spring (19) is installed on the side wall of the fixing ring (15), and the side of the limit spring (19) away from the fixing ring (15) is connected to the side wall of the connecting column (14).

9. A low temperature anaerobic workstation according to claim 7, characterized in that: Each of the culture dish placement plates (12) is provided with an annular groove (20) inside, a cleaning plate (21) is slidably arranged inside the annular groove (20), a cleaning cloth is sleeved on the middle side of the outer peripheral surface of the cleaning plate (21), and the cleaning cloth is an alcohol cloth. A fixing bracket (22) is installed on the side wall of the cleaning plate (21), and the fixing bracket (22) is connected to the limiting column (18) on the side away from the cleaning plate (21).

10. A low temperature anaerobic workstation according to any one of claims 7 to 9, characterized in that: A limit stop seat (23) adapted to the limit post (18) is arranged inside the incubator (4), and a telescopic spring (24) is arranged at the connection between the limit post (18) and the limit stop seat (23).

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