A microbial incubator for marine microorganism detection

Abstract

The present invention relates to a microbial incubator for marine microorganism detection, belonging to the technical field of microbial culture. It includes a box body, four support legs are fixedly connected to the outer wall of the bottom of the box body at equal intervals in a circular shape, a turntable is rotatably connected to the inside of the box body in a sealed manner, the turntable divides the inside of the box body into an independent culture chamber and an exhaust chamber, and the culture chamber is located above the exhaust chamber. An air inlet pipe is arranged on one side of the box body, and an air outlet pipe is arranged on the top of the box body. The present invention completes the position conversion adjustment of the placement rack by rotating the turntable. During the rotation process of the placement rack, it can be directly and automatically positioned and connected to the docking plate. At the same time, in cooperation with the material taking box and the docking plate, a sealed space can be formed, which is convenient for pumping out the gas inside, so as to achieve the effect of avoiding the entry of external air and the discharge of internal air. The whole process is very simple and fast, and the sealing effect is good.

Description

Technical Field

[0001] The present invention belongs to the technical field of microbial culture, and relates to a microbial incubator for marine microorganism detection. Background Art

[0002] Microbial culture is a basic technology in biological and medical research, and is widely used in fields such as scientific research, medical treatment, industry, and environmental monitoring. A microbial incubator is the core equipment for microbial culture, which is used to provide conditions such as constant temperature, humidity, and gas environment to ensure the efficient growth of microorganisms. Since there are various microorganisms in the ocean, including aerobic bacteria, facultative anaerobic bacteria, and strict anaerobic bacteria, for aerobic bacteria, an ordinary constant temperature incubator can be used to complete the culture, while for anaerobic bacteria, an anaerobic incubator is required.

[0003] When culturing microorganisms in an anaerobic incubator, an anaerobic environment needs to be provided, and an inert gas also needs to be continuously introduced into the box body to meet the culture of microorganisms. However, the traditional anaerobic incubator is not very convenient to operate during the process of taking and placing the culture medium. A simple operation is to directly open the box door for taking and placing. Although this operation is fast for taking and placing, external air is likely to enter, and at the same time, a large amount of inert gas in the box body will also be discharged outwards. A complex operation is to add an air lock chamber. First, transfer the culture medium to the chamber, and then realize the taking and placing of the culture medium through the opening and closing adjustment of the inner door and the outer door. However, the whole operation is very troublesome, with cumbersome steps and time-consuming and laborious, so we propose a microbial incubator for marine microorganism detection to solve the above-mentioned problems. Summary of the Invention

[0004] In view of this, in order to solve the problem that the traditional anaerobic incubator is not very convenient to operate during the process of taking and placing the culture medium, the simple operation method is easy to let air in, and the complex operation method has cumbersome steps and is time-consuming and laborious, the present invention provides a microbial incubator for marine microorganism detection.

[0005] To achieve the above object, the present invention provides the following technical solutions: including a box body;

[0006] Four support legs are fixedly connected to the outer wall of the bottom of the box body at equal intervals in a ring shape;

[0007] A turntable is hermetically and rotatably connected to the inside of the box body. The turntable divides the inside of the box body into an independent culture chamber and an exhaust chamber, and the culture chamber is located above the exhaust chamber;

[0008] An air inlet pipe is arranged on one side of the box body;

[0009] An air outlet pipe is arranged on the top of the box body;

[0010] Multiple sets of placement racks are equidistantly arranged in a ring on the top of the turntable;

[0011] A driving mechanism is arranged on the outer wall of the bottom of the box body and is used to drive the turntable to rotate and adjust the position of the placement rack;

[0012] An air extraction mechanism is arranged on the top of the turntable and is connected to multiple sets of placement racks at the same time;

[0013] A material taking box is fixedly connected to one side of the box body and is communicated with the culture cavity;

[0014] A material taking mechanism is arranged in the material taking box and is used in cooperation with the placement rack to complete the taking out and putting in of the culture dish. During the taking out and putting in process, they can cooperate with each other to form a sealed state for the storage space of the culture dish. In this sealed state, the air in the sealed space can be pumped into the exhaust cavity through the air extraction mechanism;

[0015] A material taking and placing opening is opened on one side of the material taking box;

[0016] A blocking mechanism is arranged in the material taking box and is used in cooperation with the material taking mechanism to complete the automatic opening and closing of the material taking and placing opening.

[0017] Furthermore, the driving mechanism includes a mounting frame fixedly connected to the outer wall of the bottom of the box body. A driving motor is fixedly connected to the top of the mounting frame. The output shaft of the driving motor rotates through the bottom of the box body and extends into the exhaust cavity. A small gear is fixedly sleeved on the output shaft of the driving motor. A rotating sleeve is fixedly connected to the bottom of the turntable. The bottom end of the rotating sleeve rotates through the bottom wall of the box body and extends downward. A large gear meshing with the small gear is fixedly sleeved on the outer wall of one side of the rotating sleeve located inside the exhaust cavity.

[0018] Furthermore, the placement rack includes a first vertical plate and a second vertical plate integrally formed and connected. The first vertical plate and the second vertical plate are arranged at a right angle and are both attached to the top of the turntable. And a placement plate is fixedly connected between the inner sides. A placement groove for placing the culture dish is opened on the top of the placement plate.

[0019] Furthermore, the air extraction mechanism includes a piston cylinder fixedly connected to the center position of the top of the turntable. A plurality of multi-stage telescopic tubes are fixedly communicated with the top side wall of the piston cylinder in an annular and equidistant manner. And the telescopic ends of the plurality of multi-stage telescopic tubes are respectively fixedly connected through the side of the corresponding first vertical plate. One-way intake valves are installed on the plurality of multi-stage telescopic tubes. A guide pipe is fixedly communicated with the top of the piston cylinder. And the other end of the guide pipe fixedly penetrates through one side of the top of the turntable and is connected to the exhaust cavity. A one-way outlet valve is installed on the guide pipe.

[0020] Furthermore, a piston assembly for extracting gas is arranged in the piston cylinder.

[0021] Further, one side of the box body is fixedly connected with an exhaust pipe communicated with the exhaust cavity.

[0022] Further, the piston assembly includes a piston block that is hermetically and slidably connected inside the piston cylinder. The bottom of the piston block is fixedly connected with a piston rod, and the bottom end of the piston rod penetrates through the top of the turntable and slidably passes through the inside of the rotating sleeve.

[0023] Further, the bottom end of the piston rod extends below the rotating sleeve and is rotatably connected with a nut plate. The top of the mounting frame is rotatably connected with a reciprocating lead screw. The nut plate is threadedly sleeved on the reciprocating lead screw. The bottom outer wall of the box body is fixedly connected with a first lead screw motor, and the output end of the first lead screw motor is fixedly connected with the top end of the reciprocating lead screw.

[0024] Further, the material taking mechanism includes a docking plate that fits and slides on the bottom wall, top wall and the side wall close to the material taking and placing opening of the material taking box. A driving member for driving the docking plate to move back and forth is arranged inside the material taking box.

[0025] Further, one side of the docking plate close to the placing rack is provided with an arc-shaped concave surface, and an arc-shaped positioning groove is formed on the arc-shaped concave surface. Both the second vertical plate and one side of the placing plate are provided with arc-shaped convex surfaces adapted to the arc-shaped concave surface. An arc-shaped positioning block matched with the arc-shaped positioning groove is arranged on the arc-shaped convex surface of the placing plate.

[0026] Further, the driving member includes a fixed block fixedly connected to the inner wall of the material taking box on the side far from the material taking and placing opening. A same one-way lead screw is rotatably connected between the fixed block and the inner wall of one side of the material taking box. An L-shaped connecting plate fixedly connected with one side of the docking plate is threadedly sleeved on the outer wall of the one-way lead screw. A second lead screw motor is fixedly connected to the outer wall of the material taking box on the side far from the box body. The output shaft of the second lead screw motor rotatably penetrates through one side of the material taking box and is fixedly connected with one end of the one-way lead screw.

[0027] Further, the blocking mechanism includes a blocking plate that is hermetically and slidably connected to the inner wall of the material taking box on the side close to the material taking and placing opening, and the blocking plate is in movable contact with the docking plate. One side of the blocking plate is fixedly connected with a connecting plate. A same slide bar is fixedly connected between the fixed block and the inner wall of one side of the material taking box. The connecting plate is slidably sleeved on the slide bar. A tension spring is sleeved on the slide bar, and both ends of the tension spring are respectively fixedly connected with one side of the fixed block and one side of the connecting plate.

[0028] Further, a sealing block is slidably connected to the inner side surface of the first vertical plate. An air vent hole matched with one end of the multi-section telescopic pipe is formed on one side of the sealing block. Two guide rods are symmetrically and fixedly connected to one side of the sealing block. One ends of the two guide rods both slidably penetrate through one side of the second vertical plate and extend outwards. Return springs are sleeved on the outer walls of the two guide rods, and both ends of the return springs are respectively fixedly connected with the ends of the guide rods far from the sealing block and the outer side surface of the second vertical plate.

[0029] Further, one side of the sealing block away from the second vertical plate is provided with an inclined surface, one side of the material taking box close to the material taking and placing opening is provided with an extension part extending into the culture cavity, and the extension part is used in cooperation with the inclined surface.

[0030] The beneficial effects of the present invention are as follows:

[0031] In the present invention, multiple groups of placing racks are arranged on the turntable, and the position conversion adjustment of the placing racks is completed by rotating the turntable. During the rotation process of the placing racks, they can be directly and automatically positioned and connected with the docking plate, and the placing racks can be directly pulled from the culture cavity into the material taking box. At the same time, in cooperation with the material taking box and the docking plate, a sealed space can be formed, which is convenient for extracting the internal gas, thereby achieving the effect of avoiding the entry of external air and the discharge of internal air; then, the placing racks are directly located at the material taking and placing opening to complete the taking and placing of the culture solution, and the material taking and placing opening can also be automatically opened and closed as the docking plate moves. The operation process is very simple, without the need for complex transfer of the position of the culture solution, and there is no need to control the two hatch doors back and forth. The whole step is simple, fast, and has a good sealing effect.

[0032] Other advantages, objectives, and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be described in preferred detail below in conjunction with the drawings, where:

[0034] Figure 1 is a three-dimensional view of the overall structure of a microbial incubator for marine microorganism detection according to the present invention;

[0035] Figure 2 is a three-dimensional sectional view of the overall structure of a microbial incubator for marine microorganism detection according to the present invention;

[0036] Figure 3 For the present invention Figure 2 is another three-dimensional view of the overall structure;

[0037] Figure 4 For the present invention Figure 2 is a bottom three-dimensional sectional view of the overall structure;

[0038] Figure 5 is a three-dimensional sectional view of the piston cylinder connection structure of a microbial incubator for marine microorganism detection according to the present invention;

[0039] Figure 6 This is a three-dimensional sectional view of the overall structure of the material extraction box of a microbial incubator for marine microorganism detection according to the present invention;

[0040] Figure 7 This is a three-dimensional view of the internal structure of the material extraction box of a microbial incubator for marine microorganism detection according to the present invention;

[0041] Figure 8 This is a three-dimensional view of the overall structure of the placement rack of a microbial incubator for marine microorganism detection according to the present invention;

[0042] Figure 9 This is a three-dimensional view of a partial structure of the placement rack of a microbial incubator for marine microorganism detection according to the present invention.

[0043] Reference numerals: 1, box body; 2, support leg; 3, intake pipe; 4, turntable; 5, material extraction box; 51, access opening; 52, extension part; 6, culture cavity; 7, piston cylinder; 8, exhaust cavity; 9, guide pipe; 10, mounting rack; 11, exhaust pipe; 12, plugging plate; 13, multi-stage telescopic pipe; 14, rotating sleeve; 15, piston block; 16, drive motor; 17, pinion gear; 18, piston rod; 19, large gear; 20, nut plate; 21, first lead screw motor; 22, reciprocating lead screw; 23, first vertical plate; 24, fixing block; 25, outlet pipe; 26, second lead screw motor; 27, second vertical plate; 28, placement plate; 281, placement groove; 29, slide bar; 30, connecting plate; 31, tension spring; 32, one-way lead screw; 33, L-shaped connecting plate; 34, docking plate; 341, arc-shaped positioning groove; 35, arc-shaped positioning block; 36, sealing block; 361, ventilation hole; 362, inclined surface; 37, guide rod; 38, return spring. Detailed implementation manners

[0044] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Without conflict, the following embodiments and the features in the embodiments can be combined with each other. Embodiment

[0045] As Figures 1-9As shown in the figure, a microbial incubator for marine microorganism detection includes a box body 1, four support legs 2, an air inlet pipe 3, a turntable 4, a material taking box 5, an air outlet pipe 25, a material taking and placing opening 51, and multiple groups of placement racks. The four support legs 2 are fixedly connected to the outer bottom wall of the box body 1 at equal intervals in a circular shape. The turntable 4 is hermetically rotatably connected to the inside of the box body 1. The turntable 4 divides the inside of the box body 1 into an independent culture chamber 6 and an exhaust chamber 8, and the culture chamber 6 is located above the exhaust chamber 8. The air inlet pipe 3 is arranged on one side of the box body 1 and is connected to the culture chamber 6 for the delivery of inert gas. The air outlet pipe 25 is arranged on the top of the box body 1 for the discharge of inert gas, and cooperates with the air inlet pipe 3 to form continuous delivery of inert gas. Multiple groups of placement racks are arranged on the top of the turntable 4 at equal intervals in a circular shape for placing culture dishes. The material taking box 5 is fixedly connected to one side of the box body 1 and is connected to the culture chamber 6. The material taking and placing opening 51 is opened on one side of the material taking box 5 for taking and placing culture dishes.

[0046] In one aspect of this embodiment, the placement rack includes a first vertical plate 23 and a second vertical plate 27 connected by integral molding. The first vertical plate 23 and the second vertical plate 27 are arranged at a right angle and both are attached to the top of the turntable 4, and the same placement plate 28 is fixedly connected between the inner sides. A placement groove 281 for placing culture dishes is opened on the top of the placement plate 28.

[0047] The microbial incubator further includes a driving mechanism arranged on the outer bottom wall of the box body 1 for driving the turntable 4 to rotate and adjusting the position of the placement rack. The driving mechanism includes a mounting rack 10 fixedly connected to the outer bottom wall of the box body 1. A driving motor 16 is fixedly connected to the top of the mounting rack 10. The output shaft of the driving motor 16 rotates through the bottom of the box body 1 and extends into the exhaust chamber 8. A small gear 17 is fixedly sleeved on the output shaft of the driving motor 16. A rotating sleeve 14 is fixedly connected to the bottom of the turntable 4. The bottom end of the rotating sleeve 14 rotates through the bottom wall of the box body 1 and extends downward. A large gear 19 meshing with the small gear 17 is fixedly sleeved on the outer side wall of the rotating sleeve 14 located inside the exhaust chamber 8. By starting the driving motor 16, the rotation of the rotating sleeve 14 can be driven through the meshing movement of the small gear 17 and the large gear 19, and then the turntable 4 can be driven to rotate, so as to realize the rotational adjustment of the position of the placement rack.

[0048] The present invention can be used in the field of microbial culture for marine microorganism detection, and can also be applicable to other fields of the present invention. Embodiment

[0049] This embodiment is a further improvement of the previous embodiment: As Figures 1-9As shown in the figure, the microbial incubator further includes an air extraction mechanism provided on the top of the turntable 4 and connected to multiple sets of placement racks at the same time. By driving the turntable 4 to rotate through the driving mechanism, the placement racks can be driven to rotate and move by the air extraction mechanism; the air extraction mechanism includes a piston cylinder 7 fixedly connected to the center position of the top of the turntable 4. The top of the side wall of the piston cylinder 7 is fixedly communicated with a plurality of multi-stage telescopic tubes 13 at equal intervals in a ring shape, and the telescopic ends of the plurality of multi-stage telescopic tubes 13 are respectively fixedly connected through one side of the corresponding first vertical plate 23. One-way intake valves are installed on the plurality of multi-stage telescopic tubes 13. The top of the piston cylinder 7 is fixedly communicated with a guide pipe 9, and the other end of the guide pipe 9 fixedly penetrates through one side of the top of the turntable 4 and is communicated with the exhaust cavity 8. A one-way exhaust valve is installed on the guide pipe 9. A piston assembly for extracting gas is provided in the piston cylinder 7. One side of the box body 1 is fixedly connected with an exhaust pipe 11 communicated with the exhaust cavity 8. When the placement rack composed of the first vertical plate 23 and the second vertical plate 27 is brought into the material taking box 5 through the material taking mechanism, it will contact and cooperate with the top wall and side wall of the material taking mechanism and the material taking box 5 to form a sealed space. At this time, the culture dish is placed in the placement groove 281 on the placement plate 28, so that the culture dish is located in this sealed space; due to the setting of the multi-stage telescopic tube 13, during the process of the entire placement rack entering the interior of the material taking box 5, the multi-stage telescopic tube 13 will be automatically stretched and lengthened; when the placement rack moves to correspond to the material taking and placing port 51, the culture dish can be taken out through the material taking and placing port 51. If a new culture dish needs to be put in for continuous cultivation, it can be put in again through the material taking and placing port 51. Whether a new culture dish is put in for continuous cultivation or the extraction work is continued, the placement rack needs to be pushed back to the turntable 4 through the material taking mechanism. At this time, the multi-stage telescopic tube 13 automatically retracts and shortens; when the placement rack no longer corresponds to the material taking and placing port 51, the blocking mechanism automatically closes the material taking and placing port 51 to prevent a large amount of gas in the box body 1 from leaking out. Since during the process of taking and placing materials, external air will enter the placement rack through the material taking and placing port 51 and exchange with the gas inside it, in order to prevent the external air from entering the box body 1, during the process of the placement rack moving back, a sealed space will be formed by contacting and cooperating with the inner wall of the material taking box 5, and then the gas in this sealed space will be sucked into the piston cylinder 7 through the multi-stage telescopic tube 13 by the piston assembly, and then conveyed to the exhaust cavity 8 through the guide pipe 9, and finally discharged outward from the exhaust pipe 11 and collected and processed centrally, so as to effectively prevent the external air from entering the culture cavity 6 and affecting the cultivation of other culture media.

[0050] In one aspect of this embodiment, the piston assembly includes a piston block 15 that is hermetically and slidably connected within a piston cylinder 7. A piston rod 18 is fixedly connected to the bottom of the piston block 15. The bottom end of the piston rod 18 penetrates through the top of the turntable 4 and slidably passes through the interior of the rotating sleeve 14. The bottom end of the piston rod 18 extends below the rotating sleeve 14 and is rotatably connected to a nut plate 20. A reciprocating lead screw 22 is rotatably connected to the top of the mounting frame 10. The nut plate 20 is threadedly sleeved on the reciprocating lead screw 22. A first lead screw motor 21 is fixedly connected to the bottom outer wall of the box body 1. The output end of the first lead screw motor 21 is fixedly connected to the top end of the reciprocating lead screw 22. When the placement rack is pushed back to the culture chamber 6 by the material taking mechanism, the first lead screw motor 21 is started, driving the reciprocating lead screw 22 to rotate, and simultaneously driving the nut plate 20 to move up and down. At this time, the piston block 15 can be driven by the piston rod 18 to move up and down in the piston cylinder 7 for one stroke. When the piston block 15 moves downward, the air in the sealed space can be inhaled into the piston cylinder 7 through the multi-stage telescopic tube 13. Conversely, when the piston block 15 moves upward, the air inhaled into the piston cylinder 7 can be conveyed to the exhaust chamber 8 through the air duct 9 and finally discharged outward from the exhaust pipe 11, thereby achieving the effect of removing external air. Additionally, during the process of starting the drive motor 16 to drive the turntable 4 to rotate, the turntable 4 will also drive the piston cylinder 7 to rotate, and then drive the corresponding placement racks to rotate and move through a plurality of multi-stage telescopic tubes 13, achieving the effect of position adjustment. At the same time, the rotation of the piston cylinder 7 also drives the piston block 15 to rotate, causing the piston rod 18 to rotate together with the rotating sleeve 14. Since the piston rod 18 is rotatably connected to the nut plate 20, there will be no interference between the position adjustment of the placement rack and the air extraction function. Embodiment

[0051] This embodiment is a further improvement of the previous embodiment: As Figures 1-9As shown in the figure, the microbial incubator further includes a material taking mechanism disposed in the material taking box 5 and used in cooperation with the placement rack to complete the taking out and putting in of the culture dish. During the taking out and putting in process, they can cooperate with each other to form a sealed state for the storage space of the culture dish. In this sealed state, the air in the sealed space can be pumped into the exhaust cavity 8 through the air extraction mechanism, thereby effectively isolating the entry of oxygen. The material taking mechanism includes a docking plate 34 that fits and slides on the bottom wall, top wall, and side wall near the material taking and placing opening 51 of the material taking box 5. A driving member for driving the docking plate 34 to move back and forth is provided inside the material taking box 5. An arc-shaped concave surface is provided on one side of the docking plate 34 close to the placement rack, and an arc-shaped positioning groove 341 is opened on the arc-shaped concave surface. Arc-shaped convex surfaces adapted to the arc-shaped concave surface are provided on both the second vertical plate 27 and one side of the placement plate 28, facilitating the docking and fitting of the entire placement rack with the docking plate 34 during the rotation of the turntable 4. An arc-shaped positioning block 35 that cooperates with the arc-shaped positioning groove 341 is provided on the arc-shaped convex surface of the placement plate 28. When the entire placement rack rotates and moves with the turntable 4, one side of it can directly fit with some parts of the docking plate 34, and at the same time, the arc-shaped positioning block 35 can directly move into the arc-shaped positioning groove 341 to perform positioning connection between the placement plate 28 and the docking plate 34. Then, by driving the docking plate 34 to move back and forth through the driving member, the entire placement rack can be driven to move back and forth, moving it from the culture cavity 6 into the material taking box 5. For the convenience of movement, the bottom wall of the material taking box 5 is flush with the top of the turntable 4, enabling the docking plate 34 to smoothly move the placement rack from the culture cavity 6 into the material taking box 5.

[0052] In one aspect of this embodiment, the driving member includes a fixed block 24 fixedly connected to the inner wall of the material taking box 5 on the side away from the material taking and placing opening 51. A same one-way lead screw 32 is rotatably connected between the fixed block 24 and the inner wall of one side of the material taking box 5. An L-shaped connecting plate 33 fixedly connected to one side of the docking plate 34 is threadedly sleeved on the outer wall of the one-way lead screw 32. A second lead screw motor 26 is fixedly connected to the outer wall of the material taking box 5 on the side away from the box body 1. The output shaft of the second lead screw motor 26 rotatably penetrates through one side of the material taking box 5 and is fixedly connected to one end of the one-way lead screw 32. Starting the second lead screw motor 26 to drive the one-way lead screw 32 to rotate can drive the L-shaped connecting plate 33 to move, thereby driving the docking plate 34 to move back and forth for control. When the docking plate 34 drives the entire placement rack into the culture cavity 6, if there is no need to take out other culture dishes, the placement rack can directly stay on the docking plate 34 for the culture of the culture solution. Because when the placement rack is located in the culture cavity 6, its top and the side away from the second vertical plate 27 are both in an open state. At this time, an inert gas is introduced into the culture cavity 6 to complete the culture work. When it is necessary to take out or put in other culture dishes, then start the driving motor 16 to drive the turntable 4 to rotate to adjust the position of the placement rack. Embodiment

[0053] This embodiment is a further improvement of the previous embodiment: As Figures 1-7 shown, the microbial incubator further includes a plugging mechanism disposed in the material taking box 5 and used in cooperation with the material taking mechanism to automatically open and close the material taking and placing opening 51; the plugging mechanism includes a plugging plate 12 that is hermetically and slidably connected to the inner wall of the material taking box 5 on the side close to the material taking and placing opening 51, and the plugging plate 12 is in movable contact with the docking plate 34. One side of the plugging plate 12 is fixedly connected to a connecting plate 30. A same sliding rod 29 is fixedly connected between the fixed block 24 and the inner wall of one side of the material taking box 5. The connecting plate 30 is slidably sleeved on the sliding rod 29. A tension spring 31 is sleeved on the sliding rod 29, and both ends of the tension spring 31 are fixedly connected to one side of the fixed block 24 and one side of the connecting plate 30 respectively. As Figure 6 and Figure 7 shown, at this time, the docking plate 34 drives the entire placement rack to be exactly located at the position of the material taking and placing opening 51, and the docking plate 34 abuts against the plugging plate 12, so that the material taking and placing opening 51 is in an open state. At this time, the tension spring 31 is in a stretched state; when the docking plate 34 drives the entire placement rack to start moving into the culture cavity 6, at this time, under the elastic force of the tension spring 31, the plugging plate 12 will be driven to automatically reset through the connecting plate 30, so that the plugging plate 12 automatically closes the material taking and placing opening 51, preventing external air from flowing into the box body 1 and also preventing a large amount of inert gas in the box body 1 from flowing out of the box body 1 to the outside. Embodiment

[0054] This embodiment is a further improvement of the previous embodiment: As Figures 1-9 shown, a sealing block 36 is slidably connected to the inner side surface of the first vertical plate 23. A ventilation hole 361 for cooperating with one end of the multi-stage telescopic tube 13 is opened on one side of the sealing block 36. Two guide rods 37 are symmetrically and fixedly connected to one side of the sealing block 36. One ends of the two guide rods 37 both slidably penetrate through one side of the second vertical plate 27 and extend outward. Return springs 38 are sleeved on the outer walls of the two guide rods 37, and both ends of the return springs 38 are fixedly connected to the ends of the guide rods 37 away from the sealing block 36 and the outer side surface of the second vertical plate 27 respectively. As Figure 8 shown, when the sealing block 36 is in the initial position, the return spring 38 is in the initial state. At this time, the ventilation hole 361 is in a misaligned state with one end of the multi-stage telescopic tube 13. That is to say, at this time, one end of the multi-stage telescopic tube 13 connected to the first vertical plate 23 is blocked by the sealing block 36; when the entire placement rack moves from the culture cavity 6 to the material taking box 5 along with the docking plate 34, as Figure 6As shown, the sealing block 36 will be pushed and move closer to the position of the second vertical plate 27, and finally abut against one side of the second vertical plate 27. At this time, the return spring 38 is in a stretched state as the guide rod 37 moves, and the vent hole 361 corresponds to and communicates with one end of the multi-stage telescopic tube 13 as the sealing block 36 moves. Therefore, when the piston cylinder 7 evacuates the sealed space, since the multi-stage telescopic tube 13 on the placement rack in the culture chamber 6 is blocked by the corresponding sealing block 36, and the multi-stage telescopic tube 13 on the placement rack in the material taking box 5 is in communication with the vent hole 361, during the evacuation process, the piston cylinder 7 can only extract the air in the sealed space and will not extract the inert gas in the culture chamber 6, thereby ensuring that all the air in the sealed space is extracted, effectively improving the air discharge effect.

[0055] In one aspect of this embodiment, a slope 362 is provided on the side of the sealing block 36 away from the second vertical plate 27, and an extension 52 extending into the culture chamber 6 is provided on the side of the material taking box 5 close to the material taking and placing opening 51, and the extension 52 is used in cooperation with the slope 362. As Figure 3 and Figure 6 shown, the material taking box 5 is provided with an extension 52 extending into the culture chamber 6. After the docking plate 34 returns the entire placement rack to the culture chamber 6, the docking plate 34 always remains in close contact with the extension 52. On the one hand, it is to facilitate smoothly pulling the entire placement rack into the material taking box 5. On the other hand, through the cooperation with the slope 362, when the placement rack is pulled into the material taking box 5, the slope 362 will contact the extension 52, and as the placement rack moves, it will automatically push the sealing block 36 in the direction of the second vertical plate 27, so that the sealing block 36 abuts between the second vertical plate 27 and the inner wall of the material taking box 5, completing the conduction between the vent hole 361 and the multi-stage telescopic tube 13. Conversely, when the placement rack is retracted into the culture chamber 6, the sealing block 36 can automatically reset under the elastic force of the return spring 38, and at this time, the sealing block 36 is disengaged from the extension 52.

[0056] However, as is well known to those skilled in the art, the working principles and wiring methods of the drive motor 16, the first lead screw motor 21, and the second lead screw motor 26 are common knowledge, and they all belong to conventional means or common general knowledge, so they will not be elaborated here. Those skilled in the art can make arbitrary selections according to their needs or convenience.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the present technical solution, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A microbial incubator for marine microbial detection, characterized in that: include: Box (1); Four supporting legs (2) are fixedly connected to the bottom outer wall of the box body (1) in a circular shape and at equal intervals; a turntable (4) which is sealed and rotatably connected to the interior of the housing (1); the turntable (4) divides the interior of the housing (1) into a culture chamber (6) and an exhaust chamber (8) which are independent of each other, and the culture chamber (6) is located above the exhaust chamber (8); An air intake pipe (3) is arranged on one side of the box body (1); An air outlet pipe (25) is arranged at the top of the box body (1); A plurality of sets of placement racks are arranged in a circular shape and equidistantly on the top of the rotating disk (4), the placement racks comprising a first vertical plate (23) and a second vertical plate (27) which are integrally formed and connected, the first vertical plate (23) and the second vertical plate (27) being arranged at a right angle and both being attached to the top of the rotating disk (4), and a same placement plate (28) being fixedly connected between the inner sides, and a placement groove (281) for placing a culture dish being provided on the top of the placement plate (28); A driving mechanism, arranged on the bottom outer wall of the box body (1), used for driving the turntable (4) to rotate and adjusting the position of the placement rack; An air extraction mechanism is arranged on the top of the turntable (4) and is connected to a plurality of sets of placement racks at the same time. The air extraction mechanism comprises a piston cylinder (7) fixedly connected to the center position of the top of the turntable (4). The top of the side wall of the piston cylinder (7) is annularly and equidistantly fixedly connected to a plurality of multi-section telescopic tubes (13), and the telescopic ends of the plurality of multi-section telescopic tubes (13) are respectively penetrated and fixedly connected to one side of the corresponding first vertical plate (23). A one-way air inlet valve is installed on each of the plurality of multi-section telescopic tubes (13). The top of the piston cylinder (7) is fixedly connected to an air guide tube (9), and the other end of the air guide tube (9) is fixedly penetrated through one side of the top of the turntable (4) and is connected to the exhaust chamber (8). A one-way air outlet valve is installed on the air guide tube (9), and a piston assembly for extracting gas is provided in the piston cylinder (7); An exhaust pipe (11) passes through and is fixedly connected to one side of the box body (1) and is in communication with the exhaust chamber (8); A material taking box (5) is fixedly connected to one side of the box body (1) and is connected to the culture chamber (6); A take-in and put-out opening (51) is provided on one side of the material taking box (5); A material taking mechanism is arranged in the material taking box (5) and is used in conjunction with the placement rack to complete the taking out and placing of the culture dish. In the process of taking out and placing, the two mechanisms can cooperate with each other to form a sealed state in the storage space of the culture dish. In this sealed state, the air in the sealed space can be sucked into the exhaust chamber (8) through the exhaust mechanism. The material taking mechanism includes a docking plate (34) that slides in contact with the bottom wall, the top wall and the side wall near the taking and placing opening (51) of the material taking box (5). A driving member for driving the docking plate (34) to move back and forth is provided inside the material taking box (5). A curved concave surface is provided on one side of the docking plate (34) near the placement rack, and a curved positioning groove (341) is provided on the curved concave surface. A curved convex surface that matches the curved concave surface is provided on one side of the second vertical plate (27) and the placement plate (28). A curved positioning block (35) that cooperates with the curved positioning groove (341) is provided on the curved convex surface on the placement plate (28). A blocking mechanism is arranged in the material taking box (5) and is used in conjunction with the material taking mechanism to automatically open and close the taking and releasing opening (51). The blocking mechanism comprises a blocking plate (12) sealingly slidably connected to the inner wall of the material taking box (5) on one side close to the taking and releasing opening (51), and the blocking plate (12) is in active contact with the docking plate (34). A connecting plate (30) is fixedly connected to one side of the blocking plate (12), and a same sliding rod (29) is fixedly connected between the fixed block (24) and the inner wall of one side of the material taking box (5). The connecting plate (30) is slidably sleeved on the sliding rod (29), and a tension spring (31) is sleeved on the sliding rod (29), and two ends of the tension spring (31) are respectively fixedly connected to one side of the fixed block (24) and one side of the connecting plate (30).

2. A microbial incubator for marine microbial detection as claimed in claim 1, characterized in that: The driving mechanism comprises a mounting frame (10) fixedly connected to the outer wall of the bottom of the box body (1), a driving motor (16) fixedly connected to the top of the mounting frame (10), an output shaft of the driving motor (16) rotatably penetrates the bottom of the box body (1) and extends into the interior of the exhaust chamber (8), a small gear (17) is fixedly sleeved on the output shaft of the driving motor (16), a rotating sleeve (14) is fixedly connected to the bottom of the turntable (4), the bottom end of the rotating sleeve (14) rotatably penetrates the bottom wall of the box body (1) and extends downward, and a large gear (19) meshing with the small gear (17) is fixedly sleeved on the outer wall of one side of the rotating sleeve (14) located inside the exhaust chamber (8).

3. A microbial incubator for marine microbial detection as claimed in claim 2, characterized in that: The piston assembly comprises a piston block (15) sealingly and slidably connected in a piston cylinder (7); a piston rod (18) is fixedly connected to the bottom of the piston block (15); and the bottom end of the piston rod (18) penetrates the top of the rotating disk (4) and slides through the interior of the rotating sleeve (14); The bottom end of the piston rod (18) extends to the bottom of the rotating sleeve (14) and is rotatably connected to a nut plate (20); the top of the mounting frame (10) is rotatably connected to a reciprocating screw (22); the nut plate (20) is threadedly sleeved on the reciprocating screw (22); the bottom outer wall of the box body (1) is fixedly connected to a first screw motor (21); and the output end of the first screw motor (21) is fixedly connected to the top end of the reciprocating screw (22).

4. A microbial incubator for marine microbial detection as claimed in claim 3, characterized in that: The driving member comprises a fixed block (24) fixedly connected to the inner wall of the material picking box (5) on the side away from the pick-up and release opening (51); a one-way screw (32) is rotatably connected between the fixed block (24) and the inner wall of the material picking box (5); an outer wall of the one-way screw (32) is threadedly sleeved with an L-shaped connecting plate (33) fixedly connected to one side of a docking plate (34); a second screw motor (26) is fixedly connected to the outer wall of the material picking box (5) on the side away from the box body (1); an output shaft of the second screw motor (26) rotatably passes through one side of the material picking box (5) and is fixedly connected to one end of the one-way screw (32).

5. A microbial incubator for marine microbial detection as claimed in claim 1 or 4, characterized in that: The inner side surface of the first vertical plate (23) is slidably connected to a sealing block (36), one side of the sealing block (36) is provided with a vent hole (361) for use with one end of the multi-section telescopic tube (13), one side of the sealing block (36) is symmetrically fixedly connected to two guide rods (37), one end of each of the two guide rods (37) slides through one side of the second vertical plate (27) and extends outward, the outer walls of the two guide rods (37) are sleeved with a return spring (38), and the two ends of the return spring (38) are respectively fixedly connected to one end of the guide rod (37) away from the sealing block (36) and the outer side surface of the second vertical plate (27).

6. A microbial incubator for marine microbial detection as claimed in claim 5, characterized in that: The sealing block (36) is provided with an inclined surface (362) on the side away from the second vertical plate (27), and the material taking box (5) is provided with an extension portion (52) extending into the culture chamber (6) on the side close to the taking and placing opening (51), and the extension portion (52) is used in conjunction with the inclined surface (362).

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