A device for controlling the microenvironment gas of bovine embryo

Abstract

The present application relates to the field of cattle embryo microenvironment gas control preservation device, especially to a cattle embryo microenvironment gas control preservation device, which comprises a three-gas incubator, the lower surface of the three-gas incubator is installed with a plurality of universal wheels, one side of the three-gas incubator is installed with a control panel, one side of the three-gas incubator is installed with a box door, the inner wall of the three-gas incubator is provided with an adjusting structure, the adjusting structure comprises two fixed plates, the two fixed plates are fixedly connected with the three-gas incubator, the inner wall of the two fixed plates is slidably connected with a plurality of placing plates, and the inner wall of the fixed plate is provided with a plurality of auxiliary grooves. The cattle embryo microenvironment gas control preservation device provided by the present application can conveniently adjust the position of the placing plate, facilitate the placement of culture dishes of different sizes and models, save the internal space of the three-gas incubator, and improve the space utilization.

Description

Technical Field

[0001] This invention relates to the field of gas control and preservation devices for bovine embryo microenvironment, and more particularly to a gas control and preservation device for bovine embryo microenvironment. Background Technology

[0002] The bovine embryo microenvironment gas control and preservation device mainly includes a three-gas incubator. Its core research and development stems from the urgent need for a precise microenvironment for the in vitro culture and preservation of bovine embryos. In vitro development of bovine embryos is extremely sensitive to gas composition. Traditional single CO2 incubators can only maintain the pH stability of the culture medium and cannot simulate the hypoxic physiological environment in vivo. High-oxygen environments easily induce the accumulation of reactive oxygen species, damaging embryonic cell structure and reducing blastocyst development rate and transplantation success rate. With the industrialization of breeding of high-quality cattle, the number of in vitro produced embryos has increased significantly, and the requirements for the stability and precision of embryo preservation have increased significantly. The shortcomings of traditional culture equipment, such as single gas control and large environmental fluctuations, have become prominent. The three-gas incubator, with its advantage of being able to precisely control the ratio of CO2, O2, and N2, has become a key device for high-quality preservation of bovine embryos. It can effectively simulate the gas environment of the reproductive tract in vivo and provide stable support for embryo preservation.

[0003] Existing technologies, such as the utility model patent with publication number CN218596368U, disclose a high-temperature sterilization three-gas incubator. This patent includes an outer shell, a first inner liner disposed inside the outer shell, an air duct plate disposed on the inner wall of the first inner liner, a first heating wire disposed on the outer wall of the first inner liner, a carbon dioxide sensor for detecting the carbon dioxide concentration inside the first inner liner, and a zirconia sensor for detecting the oxygen concentration inside the first inner liner disposed on the outer side of the first inner liner. A flow-driving mechanism for realizing the circulation of gas inside the first inner liner is disposed within the air duct plate. This invention achieves comprehensive and efficient sterilization of the internal environment of the three-gas incubator, while reducing the impact of the zirconia sensor operation on biological culture, thus improving the quality of biological culture.

[0004] The following defects were found in the above content: Since the internal placement plate of the three-gas incubator is a fixed structure, its position cannot be adjusted. Due to the difference in size of different sized petri dishes, when placing small petri dishes, the placement plate will have a lot of empty space, which will easily lead to idle space and waste of resources inside the incubator. Summary of the Invention

[0005] The purpose of this invention is to address the problems in the prior art where the placement plate inside the three-gas incubator is a fixed structure that cannot be adjusted in position. Due to the different sizes of culture dishes, when placing small culture dishes, the placement plate will have a lot of empty space, which easily leads to idle space and waste of resources inside the incubator. Therefore, this invention proposes a gas control and preservation device for the microenvironment of bovine embryos.

[0006] To solve the above-mentioned technical problems, the present invention provides a bovine embryo microenvironment gas control and preservation device, comprising: a three-gas incubator, wherein a plurality of casters are mounted on the lower surface of the three-gas incubator, a control panel is mounted on one side of the three-gas incubator, a door is mounted on one side of the three-gas incubator, and an adjustment structure is provided on the inner wall of the three-gas incubator. The adjustment structure includes two fixing plates, which are fixedly connected to the three-gas incubator. A plurality of placement plates are slidably connected to the inner walls of the two fixing plates, and a plurality of auxiliary grooves are formed on the inner walls of the fixing plates. A positioning plate is fixedly connected to the inner wall of the three-gas incubator. The inner wall of the positioning plate is slidably connected with several sliders. One side of each slider is fixedly connected to a placement plate. A connecting plate is fixedly connected to the lower surface of the placement plate. Auxiliary rods are slidably connected to both sides of the connecting plate. One end of each auxiliary rod is fixedly connected to a mounting plate. Two positioning blocks are fixedly connected to one side of the mounting plate. The positioning blocks are slidably connected to the auxiliary groove. A pull plate is fixedly connected to the other end of the auxiliary rod. A first spring is sleeved on the arc surface of the auxiliary rod. The two ends of the first spring are fixedly connected to the pull plate and the connecting plate, respectively. A connecting rod is fixedly connected to one side of the pull plate. The connecting rod and the connecting plate are slidably connected.

[0007] The effect achieved by the above components is that the position of the placement plate can be easily adjusted by setting the adjustment structure, which facilitates the placement of petri dishes of different sizes and models, thereby saving internal space of the three-gas incubator and improving space utilization.

[0008] Preferably, an anti-slip pad is fixedly connected to one side of the pull plate, and the anti-slip pad has a plurality of anti-slip patterns on one side.

[0009] The effect achieved by the above components is that the protective pad can increase the friction of the pull plate, preventing people from slipping their hands when moving the pull plate.

[0010] Preferably, a limiting rod is fixedly connected to the inner wall of the positioning plate, and the limiting rod and the slider are slidably connected.

[0011] The effect achieved by the above components is that the limiting rod can limit the slider, making the slider more stable during movement.

[0012] Preferably, a guide block is fixedly connected to one side of the positioning block.

[0013] The effect achieved by the above components is that, due to the small size of the guide block, the positioning block can be easily inserted into the auxiliary slot.

[0014] Preferably, an auxiliary structure is provided on one side of the three-gas incubator. The auxiliary structure includes a limiting plate, which is fixedly connected to the three-gas incubator. A screw is threadedly connected to the inner wall of the limiting plate. A turntable is fixedly connected to one end of the screw, and a clamping plate is rotatably connected to the other end of the screw. A welding plate is fixedly connected to the upper surface of the clamping plate, and the welding plate and the limiting plate are slidably connected.

[0015] The effect achieved by the above components is that by setting the auxiliary structure, the door can be limited to prevent it from rotating randomly when the culture dish is placed in, thereby improving the convenience of placing the culture dish.

[0016] Preferably, a soft pad, which is a rubber pad, is fixedly connected to the lower surface of the card plate.

[0017] The effect achieved by the above components is that the soft pads can prevent the cardboard from directly contacting the cabinet door, thus preventing wear and tear on the cabinet door.

[0018] Preferably, the arc surface of the turntable is fixedly connected with several rotating rods.

[0019] The effect achieved by the above components is that the rotating rod allows personnel to easily rotate the turntable, thereby improving the control over the turntable.

[0020] Preferably, the upper surface of the placement plate is provided with a fixing structure, the fixing structure including a base plate, the base plate and the placement plate being fixedly connected, a plurality of adjusting plates being fixedly connected to the upper surface of the base plate, a positioning frame being fixedly connected to the upper surface of the adjusting plate, a side plate being fixedly connected to one side of the adjusting plate, a rack being slidably connected to the inner wall of the side plate, a limit frame being fixedly connected to one side of the rack, a connecting plate being fixedly connected to the other side of the rack, an installation rod being slidably connected to the inner wall of the connecting plate, the installation rod being fixedly connected to the side plate, a second spring being sleeved on the arc surface of the installation rod, the two ends of the second spring being fixedly connected to the connecting plate and the side plate respectively, two mounting blocks being fixedly connected to the upper surface of the side plate, the inner walls of the two mounting blocks being rotatably connected to the same positioning rod, a gear being fixedly connected to the arc surface of the positioning rod, the gear meshing with the rack, and an auxiliary disk being fixedly connected to one end of the positioning rod.

[0021] The aforementioned components achieve the following effects: by setting up a fixing structure, the culture dishes on the placement plate can be fixed and limited, preventing the culture dishes from moving during the movement of the three-gas incubator, and preventing collisions between the culture dishes, thereby improving its stability and safety. Preferably, the second spring has a bellows sleeve on its arc surface, and the two ends of the bellows are fixedly connected to the side plate and the connecting plate, respectively.

[0022] The effect achieved by the above-mentioned components is that the bellows can protect the second spring and prevent foreign objects from getting stuck inside the second spring. Preferably, the inner wall of the side plate is slidably connected to two slide rods, and the two slide rods are fixedly connected to the limiting frame.

[0023] The effect achieved by the above components is that the slide bar can support and position the limiting frame, making the limiting frame more stable during movement.

[0024] Compared with related technologies, the bovine embryo microenvironment gas control and preservation device provided by the present invention has the following beneficial effects: This invention provides a gas-controlled preservation device for bovine embryo microenvironment. By setting an adjustment structure, the position of the placement plate can be flexibly adjusted to adapt to the placement requirements of culture dishes of different specifications and models, thereby making reasonable use of the internal space of the three-gas incubator and improving space utilization.

[0025] By setting up auxiliary structures, the door can be positioned and constrained, preventing it from rotating randomly when placing culture dishes, thereby effectively improving the convenience and stability of culture dish handling.

[0026] By setting up a fixed structure, the culture dishes on the placement plate can be effectively fixed and positioned, preventing them from shifting due to vibration during the movement of the three-gas incubator, thus avoiding the risk of collision between them and significantly improving the stability and safety of the experiment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a bovine embryo microenvironment gas control and preservation device provided by the present invention; Figure 2 for Figure 1 The diagram shows the structural schematic of the adjustment structure. Figure 3 for Figure 2 A partial structural schematic diagram of the adjustment structure shown; Figure 4 for Figure 1 The diagram shows the structure of the auxiliary structure. Figure 5 for Figure 1 The diagram shows the structure of the fixed structure. Figure 6 for Figure 5 A partial structural diagram of the fixed structure is shown.

[0028] Numbered in the diagram: 1. Three-gas incubator; 2. Casters; 3. Control panel; 4. Door; 5. Adjustment structure; 501. Fixing plate; 502. Auxiliary slot; 503. Placement plate; 504. Positioning plate; 505. Connecting plate; 506. Auxiliary rod; 507. Mounting plate; 508. Positioning block; 509. Pull plate; 510. First spring; 511. Connecting rod; 512. Anti-slip pad; 513. Guide block; 514. Slider; 515. Limiting rod; 6. Auxiliary structure; 1. Limiting plate; 62. Screw; 63. Turntable; 64. Clamping plate; 65. Welding plate; 66. Soft pad; 67. Rotating rod; 7. Fixing structure; 701. Base plate; 702. Adjusting plate; 703. Positioning frame; 704. Side plate; 705. Rack; 706. Limiting frame; 707. Connecting plate; 708. Mounting rod; 709. Second spring; 710. Positioning rod; 711. Gear; 712. Auxiliary plate; 713. Slide rod; 714. Bellows; 715. Mounting block. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0031] Please see Figures 1 to 6 The present invention provides a bovine embryo microenvironment gas control and preservation device, comprising: a three-gas incubator 1, a plurality of casters 2 mounted on the lower surface of the three-gas incubator 1, a control panel 3 mounted on one side of the three-gas incubator 1, a door 4 mounted on one side of the three-gas incubator 1, an adjustment structure 5 provided on the inner wall of the three-gas incubator 1, an auxiliary structure 6 provided on one side of the three-gas incubator 1, and a fixing structure 7 provided on the upper surface of the placement plate 503.

[0032] In an embodiment of the present invention, please refer to Figure 2 and Figure 3The adjustment structure 5 includes two fixed plates 501, which are fixedly connected to the three-gas incubator 1. Several placement plates 503 are slidably connected to the inner walls of the two fixed plates 501. Several auxiliary grooves 502 are formed on the inner walls of the fixed plates 501. A positioning plate 504 is fixedly connected to the inner wall of the three-gas incubator 1. Several sliders 514 are slidably connected to the inner wall of the positioning plate 504. One side of each slider 514 is fixedly connected to a placement plate 503, and the lower surface of the placement plate 503 is fixed. A connecting plate 505 is connected, and auxiliary rods 506 are slidably connected to both sides of the connecting plate 505. A mounting plate 507 is fixedly connected to one end of each auxiliary rod 506. Two positioning blocks 508 are fixedly connected to one side of the mounting plate 507, and the positioning blocks 508 are slidably connected to the auxiliary groove 502. A pull plate 509 is fixedly connected to the other end of the auxiliary rod 506. A first spring 510 is sleeved on the arc surface of the auxiliary rod 506, and both ends of the first spring 510 are fixedly connected to the pull plate 509 and the connecting plate 505, respectively. A connecting rod 511 is fixedly connected to one side of the pull plate 509. The connecting rod 511 and the connecting plate 505 are slidably connected. The position of the placement plate 503 can be easily adjusted by setting the adjustment structure 5, which is convenient for placing petri dishes of different sizes and models, thereby saving internal space of the three-gas incubator 1 and improving space utilization. An anti-slip pad 512 is fixedly connected to one side of the pull plate 509. The anti-slip pad 512 has several anti-slip textures on one side. The protective pad can increase the friction of the pull plate 509 and prevent the personnel from slipping when moving the pull plate 509. A limiting rod 515 is fixedly connected to the inner wall of the positioning plate 504. The limiting rod 515 and the slider 514 are slidably connected. The limiting rod 515 can limit the slider 514, making the slider 514 more stable during movement. A guide block 513 is fixedly connected to one side of the positioning block 508. Since the guide block 513 is small in size, it is convenient for the positioning block 508 to be inserted into the auxiliary groove 502. In an embodiment of the present invention, please refer to Figure 4 The auxiliary structure 6 includes a limiting plate 61, which is fixedly connected to the three-gas incubator 1. A screw 62 is threadedly connected to the inner wall of the limiting plate 61. A turntable 63 is fixedly connected to one end of the screw 62, and a clamping plate 64 is rotatably connected to the other end of the screw 62. A welding plate 65 is fixedly connected to the upper surface of the clamping plate 64. The welding plate 65 and the limiting plate 61 are slidably connected. By setting the auxiliary structure 6, the door 4 can be limited to prevent it from rotating randomly when the culture dish is placed in, thereby improving the convenience of placing the culture dish. A soft pad 66 is fixedly connected to the lower surface of the clamping plate 64. The soft pad 66 is a rubber pad. The soft pad 66 can prevent the clamping plate 64 from directly contacting the door 4, thus preventing the door 4 from being worn. Several rotating rods 67 are fixedly connected to the arc surface of the turntable 63. The rotating rods 67 allow personnel to easily rotate the turntable 63, thereby improving the control of the turntable 63. In an embodiment of the present invention, please refer to Figure 5 and Figure 6 The fixed structure 7 includes a base plate 701, which is fixedly connected to a placement plate 503. Several adjusting plates 702 are fixedly connected to the upper surface of the base plate 701. A positioning frame 703 is fixedly connected to the upper surface of each adjusting plate 702. A side plate 704 is fixedly connected to one side of each adjusting plate 702. A rack 705 is slidably connected to the inner wall of the side plate 704. A limit frame 706 is fixedly connected to one side of the rack 705. A connecting plate 707 is fixedly connected to the other side of the rack 705. An installation rod 708 is slidably connected to the inner wall of the connecting plate 707. The installation rod 708 is fixedly connected to the side plate 704. A second spring 709 is sleeved on the arc surface of the installation rod 708. The two ends of the second spring 709 are fixedly connected to the connecting plate 707 and the side plate 704, respectively. Two mounting blocks 715 are fixedly connected to the upper surface of the side plate 704. The same positioning rod 710 is rotatably connected to the inner wall of the two mounting blocks 715. A gear 711 is fixedly connected to the arc surface, and the gear 711 meshes with the rack 705. One end of the positioning rod 710 is fixedly connected to the auxiliary disk 712. By setting the fixing structure 7, the culture dish on the placement plate 503 can be fixed and limited, avoiding the movement of the culture dish during the movement of the three-gas incubator 1, preventing the culture dish from colliding with each other, thereby improving its stability and safety. The arc surface of the second spring 709 is fitted with a bellows 714. The two ends of the bellows 714 are fixedly connected to the side plate 704 and the connecting plate 707 respectively. The bellows 714 can protect the second spring 709 and prevent foreign objects from getting stuck inside the second spring 709. Two sliding rods 713 are slidably connected to the inner wall of the side plate 704. The two sliding rods 713 are fixedly connected to the limiting frame 706. The sliding rods 713 can support and position the limiting frame 706, making the limiting frame 706 more stable during movement. The working principle of the bovine embryo microenvironment gas control and preservation device provided by this invention is as follows: By setting the adjustment structure 5, the pull plate 509 is first moved with the help of the anti-slip pad 512, so that the pull plate 509 drives the auxiliary rod 506 to move inside the connecting plate 505. When the pull plate 509 moves, it also drives the first spring 510 to stretch. When the pull plate 509 moves, it drives the connecting rod 511 to move inside the connecting plate 505. When the auxiliary rod 506 moves, it also drives the mounting plate 507 to move. The mounting plate 507 drives the positioning block 508 to move, so that the positioning block 508 separates from the auxiliary groove 502 of the fixed plate 501. At this time, the placement plate 503 on the connecting plate 505 can be moved inside the fixed plate 501. When the placement plate 503 moves, it drives the slider 514 to move inside the positioning plate 504. When the placement plate 503 is moved to the appropriate position, the pull plate 509 can be released. Due to the action of the first spring 510, the auxiliary rod 506 will drive the mounting plate 507 to move. The mounting plate 507 will then drive the positioning block 508 to move, so that the positioning block 508 is inserted into the auxiliary groove 502. At this time, the position of the placement plate 503 is fixed. Then, the culture dish can be placed on the placement plate 503. Then, the door 4 is closed, and the three-gas incubator 1 is started using the control panel 3. The protective pad can increase the friction of the pull plate 509 to prevent the personnel from slipping when moving the pull plate 509. The limit rod 515 can limit the slider 514, making the slider 514 more stable during movement. Since the guide block 513 is small in size, it is easy for the positioning block 508 to be inserted into the auxiliary groove 502.

[0033] By setting up auxiliary structure 6, the turntable 63 is first rotated by rotating rod 67, causing the turntable 63 to drive the screw 62 to rotate inside the limiting plate 61. When the screw 62 rotates, it drives the clamping plate 64 to move. The clamping plate 64 then drives the welding plate 65 to move inside the limiting plate 61 until the clamping plate 64 is fixed to the box door 4. The soft pad 66 can prevent the clamping plate 64 from directly contacting the box door 4, thus preventing wear on the box door 4. The rotating rod 67 allows personnel to easily rotate the turntable 63, thereby improving the control of the turntable 63. By setting the fixed structure 7, first rotate the auxiliary disk 712, causing the auxiliary disk 712 to drive the positioning rod 710 to rotate inside the mounting block 715. When the positioning rod 710 rotates, it also drives the gear 711 to rotate. The gear 711 drives the rack 705 to move inside the side plate 704. When the rack 705 moves, it drives the connecting plate 707 to move on the mounting rod 708. At the same time, the connecting plate 707 also drives the second spring 709 to be stretched. At this time, the culture dish can be placed on the adjusting plate 702 of the base plate 701, and then the auxiliary disk 712 can be released. Due to the action of the second spring 709, the connecting plate 707 moves on the mounting rod 708. The connecting plate 707 drives the rack 705 to move inside the side plate 704, so that the rack 705 drives the limiting frame 706 to fix and limit the culture dish within the positioning frame 703. The corrugated tube 714 can protect the second spring 709 to prevent foreign objects from getting stuck inside the second spring 709. The sliding rod 713 can support and position the limiting frame 706, making the limiting frame 706 more stable during movement.

[0034] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0035] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A device for controlling and preserving the microenvironment of bovine embryos, characterized in that, include: A three-gas incubator (1) is provided with several casters (2) on its lower surface, a control panel (3) on one side of the three-gas incubator (1), a door (4) on one side of the three-gas incubator (1), and an adjustment structure (5) on the inner wall of the three-gas incubator (1). The adjustment structure (5) includes two fixing plates (501), which are fixedly connected to the three-gas incubator (1). Several placement plates (503) are slidably connected to the inner walls of the two fixing plates (501). Several auxiliary grooves (502) are provided on the inner walls of the fixing plates (501). A positioning plate (504) is fixedly connected to the inner wall of the three-gas incubator (1). Several sliders (514) are slidably connected to the inner wall of the positioning plate (504). One side of the slider (514) is fixedly connected to the placement plate (503). A connecting plate (505) is fixedly connected to the lower surface of the placement plate (503).

2. The bovine embryo microenvironment gas control and preservation device according to claim 1, characterized in that, Auxiliary rods (506) are slidably connected to both sides of the connecting plate (505). One end of the auxiliary rod (506) is fixedly connected to the mounting plate (507). Two positioning blocks (508) are fixedly connected to one side of the mounting plate (507). The positioning blocks (508) and the auxiliary groove (502) are slidably connected. The other end of the auxiliary rod (506) is fixedly connected to the pull plate (509). A first spring (510) is sleeved on the arc surface of the auxiliary rod (506). The two ends of the first spring (510) are fixedly connected to the pull plate (509) and the connecting plate (505) respectively. A connecting rod (511) is fixedly connected to one side of the pull plate (509). The connecting rod (511) and the connecting plate (505) are slidably connected. An anti-slip pad (512) is fixedly connected to one side of the pull plate (509). Several anti-slip patterns are opened on one side of the anti-slip pad (512).

3. The bovine embryo microenvironment gas control and preservation device according to claim 1, characterized in that, The inner wall of the positioning plate (504) is fixedly connected to a limiting rod (515), and the limiting rod (515) and the slider (514) are slidably connected.

4. The bovine embryo microenvironment gas control and preservation device according to claim 1, characterized in that, A guide block (513) is fixedly connected to one side of the positioning block (508).

5. The bovine embryo microenvironment gas control and preservation device according to claim 1, characterized in that, An auxiliary structure (6) is provided on one side of the three-gas incubator (1). The auxiliary structure (6) includes a limiting plate (61). The limiting plate (61) is fixedly connected to the three-gas incubator (1). A screw (62) is threadedly connected to the inner wall of the limiting plate (61). A turntable (63) is fixedly connected to one end of the screw (62). A clamping plate (64) is rotatably connected to the other end of the screw (62). A welding plate (65) is fixedly connected to the upper surface of the clamping plate (64). The welding plate (65) and the limiting plate (61) are slidably connected.

6. The bovine embryo microenvironment gas control and preservation device according to claim 5, characterized in that, A soft pad (66) is fixedly connected to the lower surface of the card plate (64), and the soft pad (66) is a rubber pad.

7. The bovine embryo microenvironment gas control and preservation device according to claim 5, characterized in that, The turntable (63) has several rotating rods (67) fixedly connected to its arc surface.

8. The bovine embryo microenvironment gas control and preservation device according to claim 1, characterized in that, The upper surface of the placement plate (503) is provided with a fixing structure (7), the fixing structure (7) includes a base plate (701), the base plate (701) and the placement plate (503) are fixedly connected, a plurality of adjusting plates (702) are fixedly connected to the upper surface of the base plate (701), a positioning frame (703) is fixedly connected to the upper surface of the adjusting plate (702), a side plate (704) is fixedly connected to one side of the adjusting plate (702), a rack (705) is slidably connected to the inner wall of the side plate (704), a limit frame (706) is fixedly connected to one side of the rack (705), and a connecting plate (707) is fixedly connected to the other side of the rack (705). An installation rod (708) is slidably connected to the inner wall. The installation rod (708) is fixedly connected to the side plate (704). A second spring (709) is sleeved on the arc surface of the installation rod (708). The two ends of the second spring (709) are fixedly connected to the connecting plate (707) and the side plate (704) respectively. Two installation blocks (715) are fixedly connected to the upper surface of the side plate (704). The inner walls of the two installation blocks (715) are rotatably connected to the same positioning rod (710). A gear (711) is fixedly connected to the arc surface of the positioning rod (710). The gear (711) meshes with the rack (705). An auxiliary disk (712) is fixedly connected to one end of the positioning rod (710).

9. The bovine embryo microenvironment gas control and preservation device according to claim 8, characterized in that, The second spring (709) has a bellows (714) sleeved on its arc surface. The two ends of the bellows (714) are fixedly connected to the side plate (704) and the connecting plate (707) respectively.

10. The bovine embryo microenvironment gas control and preservation device according to claim 8, characterized in that, The inner wall of the side plate (704) is slidably connected to two slide rods (713), and the two slide rods (713) are fixedly connected to the limiting frame (706).

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