Visual storage device for corn germplasm resources

Abstract

The invention relates to the technical field of seed preservation, in particular to a corn germplasm resource visual preservation device which comprises a preservation box and a preservation box placed in the preservation box, a heating cavity and a low-temperature cavity are formed in the preservation box, a second cover plate is arranged on an opening end cover of the heating cavity, and a first cover plate is arranged on an opening end cover of the low-temperature cavity. According to the storage box, by arranging the ejection assembly which is provided with the first sliding rail and the second sliding rail and is in sliding fit with the first sliding rail and the second sliding rail and locked through ratchet wheels and ratchets, stable storage and precise ejection of the multiple storage boxes in the separation grooves are achieved in combination with a gear set driven by an electric motor and a lead screw transmission structure; through cooperation of the convex lens observation assembly capable of sliding along the inner wall of the double-layer glass plate and the scraping piece, condensate water on the inner wall of the glass is effectively removed, the form and the storage state of corn germplasm resources can be clearly observed without opening the device, damage to a low-temperature and low-humidity environment caused by frequent opening and closing is avoided, the germplasm resource retrieval and management efficiency is improved, and the labor intensity of workers is reduced. The risk of seed vigor decline is reduced.

Description

Technical Field

[0001] This invention relates to the field of seed preservation technology, specifically to a visual preservation device for maize germplasm resources. Background Technology

[0002] Currently, maize germplasm resource preservation relies heavily on traditional low-temperature refrigerators or sealed storage containers, which presents several technical challenges: First, traditional devices are mostly fully enclosed structures lacking visualization capabilities. Staff must frequently open the containers to check the morphology, quantity, and storage status of the germplasm resources. Frequent opening and closing disrupts the stable low-temperature, low-humidity environment, increasing the risk of contamination or decreased viability. Third, the internal structure design of most preservation devices lacks specificity, resulting in low space utilization, disorganized storage of germplasm resources, and inconvenient retrieval and access, hindering the systematic and refined management of large-scale maize germplasm resources. These problems severely impact the safety, stability, and management efficiency of maize germplasm resource preservation. Therefore, developing a maize germplasm resource preservation device that combines visual observation, precise environmental control, and efficient storage management is of significant practical importance. Summary of the Invention

[0003] To address the above shortcomings, this invention provides a maize germplasm resource visualization preservation device, which solves the problems of traditional maize germplasm resource preservation devices lacking visualization functions, leading to frequent activation that disrupts the stable internal low-temperature and low-humidity environment, resulting in decreased seed viability and low space utilization.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A visual preservation device for maize germplasm resources includes a preservation box and a preservation container placed inside the preservation box. Specifically, the preservation box has a heating chamber and a low-temperature chamber. The opening end of the heating chamber is covered with a second cover plate, and the opening end of the low-temperature chamber is covered with a first cover plate. The low-temperature cavity has multiple equally spaced partition slots. The storage box is installed in the partition slot. The partition slot is provided with a pop-out component connected to the storage box. The pop-out component is used to push the storage box out of the partition slot and make the end face of the storage box parallel to the corresponding end face of the cover plate. The cover plate has a double-layered glass plate parallel to the opening end of the low-temperature chamber. A convex lens and an observation assembly are provided between the double-layered glass plates. The observation assembly includes an electric push rod and a scraper. The scraper is used to scrape off the condensate on the inner wall of the double-layered glass plate. The upper end face of the cover plate has a groove communicating with the inner wall of the gap between the double-layered glass plates. The convex lens is elastically connected in the groove. The output end of the electric push rod abuts against the upper end face of the convex lens. When the output end of the electric push rod moves, the convex lens and the scraper slide vertically along the inner wall of the double-layered glass plate.

[0005] Preferably, the pop-out assembly includes a slide rail one, a slide rail two, a lead screw, a rotating plate, a ratchet, a mounting groove, a rack and pinion, and an electric motor; The upper end face of the inner wall of the partition groove is provided with a slide rail one fixedly installed along the depth direction of the partition groove. The lower end face of the slide rail one is provided with a groove. The slide rail two is slidably connected to the slide rail one through the groove. The end of the slide rail two extending out of the groove is provided with a rotating hole. The side of the rotating plate is provided with a rotating shaft. The upper end of the rotating shaft is stepped. The upper end of the rotating shaft is inserted into the rotating hole and rotatably connected with the rotating hole. The end face of the rotating plate is provided with a locking block. The lower end face of the storage box is provided with a square groove that fits the locking block with a gap. A torsion spring is fitted on the upper section of the stepped shaft of the rotating shaft part. The two ends of the torsion spring are connected to the outer wall of the rotating shaft part and the inner wall of the rotating hole, respectively. A ratchet structure is provided on the outer side of the middle section of the stepped shaft part of the rotating shaft part. The ratchet is slidably connected to the slide rail one through a groove. A spring bead is provided in the middle of the ratchet. A circular groove corresponding to the spring bead is opened in the inner wall of the groove. A flange is provided at one end of the ratchet that extends into the groove. The flange abuts against the end of the slide rail two. A spring one is fixedly connected to the rear end face of the flange on the inner wall of the low temperature cavity. Multiple slots are opened on the end face of the ratchet facing the rotating plate. A ratchet tooth is installed in the slot. One end of the ratchet tooth is hinged to the inner wall of the slot. The other end is elastically connected to the inner wall of the slot on the other side. The ratchet tooth meshes with the ratchet structure of the rotating shaft part. The mounting slot is located inside the storage box. The mounting slot has multiple circular holes that communicate with the low-temperature chamber. The slide rail has threaded holes along its length. The lead screw is threaded to the threaded holes. The end of the lead screw extends into the mounting slot through the circular holes. The electric motor is fixedly installed in the mounting slot. The mounting slot has a gear set. The output end of the electric motor is connected to the end of the lead screw through the gear set. The gear set is used to transmit power to each lead screw.

[0006] Preferably, the observation component includes a copper frame with a length equal to that of the double-layered glass plate, a convex lens installed inside the frame, the frame being a hollow structure, the frame being filled with a working fluid, and sealed by vacuum reflow soldering.

[0007] Preferably, the cylinder of the electric push rod is installed inside the heating chamber, and the scraping component is located on the frame of the convex lens; The scraping component includes a silicone brush that completely covers the edge of the frame, and the thickness of the silicone brush is greater than the distance between the inner end faces of the double-layered glass plates.

[0008] Preferably, the gear set includes a first driving gear, a rack, a drive motor, a second driving gear, and a driven gear; The center of the first active tooth is fixedly installed at the output end of the electric motor. The rack is slidably connected to the inner wall of the mounting groove and meshes with the first active tooth. The main body of the drive motor is installed on the front end face of the rack. The center of the second active tooth is fixedly connected to the output end of the drive motor. The center of the driven tooth is fixedly connected to one end of the lead screw located in the mounting groove.

[0009] Preferably, the storage box has an air inlet and an air outlet communicating with the heating chamber. A fan is installed in the air inlet and the air outlet. A resistance wire is installed on the side of the air inlet facing the heating chamber. The resistance wire corresponds to the cylinder of the electric push rod.

[0010] Preferably, the inner wall of the groove is provided with corresponding ratchet grooves on both sides, and a single ratchet is slidably connected to any ratchet groove. The direction of the spring force of the torsion spring corresponds to the installation position of the ratchet. The side of the ratchet facing the slide rail II is provided with a stop bar that abuts against the end face of the rotating plate.

[0011] Preferably, the number of racks is two, and they are centrally symmetrical about the center of the active tooth.

[0012] Preferably, the rotating plate has multiple vibration grooves corresponding to the perimeter of the storage box, and a miniature vibrator is installed in the vibration groove. The end face of the storage box is provided with a flexible pad corresponding to the vibration groove, and the lower end face of the flexible pad is provided with anti-slip texture.

[0013] Preferably, a damping pad is provided on the contact surface between the stepped shaft and the rotating hole of the rotating shaft portion.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through the design of a pop-out assembly with sliding engagement of slide rail one and slide rail two and ratchet locking, combined with a gear set driven by an electric motor and a screw transmission structure, achieves stable storage and precise pop-out of the storage box within the partition slot; simultaneously, through adaptive adjustment of the rotating plate angle, the end face of the popped-out storage box remains parallel to the double-layered glass plate of the cover plate one, and with the convex lens observation assembly and scraper that can slide along the inner wall of the double-layered glass plate, condensation on the inner wall of the glass is effectively removed, allowing clear observation of the morphology and storage status of maize germplasm resources without opening the device. This avoids the damage to the low temperature and low humidity environment caused by frequent opening and closing, improves the efficiency of germplasm resource retrieval and management, and reduces the risk of seed vigor decline; 2. This invention achieves precise power distribution from the drive motor to multiple lead screws by designing a gear set consisting of a first active gear, a bidirectional rack, a drive motor, a second active gear, and a driven gear. Through the symmetrical layout of the bidirectional rack and the independent control of the drive motor, storage boxes in symmetrically spaced slots can be popped out or stored synchronously, improving the efficiency of batch operations. Furthermore, by individually controlling a drive motor to drive the corresponding driven gear, specific storage boxes can be retrieved individually, meeting the needs of refined management. 3. This invention utilizes a hollow, vacuum-sealed copper frame filled with a working medium, combined with a silicone brush of suitable thickness that completely surrounds the frame's edges. This design reduces condensation on the inner walls of the double-layered glass plate through the thermal buffering effect of the working medium, while the elasticity of the silicone brush effectively removes the condensation, ensuring a clear field of view. Furthermore, the damping pads on the contact surfaces of the stepped shaft and the rotating hole effectively reduce the impact during rotation, resulting in smoother angle adjustment after the preservation box pops out. This prevents damage to the germplasm resources and the glass caused by sudden rotation and pop-out, thus providing a guarantee for the refined preservation of maize germplasm resources. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of the maize germplasm resource visualization and preservation device; Figure 2 This is a schematic diagram of the overall structure of the maize germplasm resource visualization and preservation device of the present invention from another perspective. Figure 3 This is a schematic diagram of the overall structure of the maize germplasm resource visualization and preservation device of the present invention from another perspective. Figure 4 This is a schematic diagram of the overall structure of the elastic component within the partition groove; Figure 5 This is a schematic diagram of the overall structure of the elastic component; Figure 6 A schematic diagram showing the state where slide rail one extends beyond slide rail two; Figure 7 This is a schematic diagram showing another state where slide rail one extends beyond slide rail two. Figure 8 A schematic diagram of the overall structure of the elastic component from another perspective; Figure 9 A schematic diagram of the overall structure after removing slide rail 1 from the elastic component; Figure 10 This is a front view of the storage box when it is not on display. Figure 11 for Figure 10 Enlarged view of point B in the middle; Figure 12 This is a schematic diagram of the overall structure of the thorn; Figure 13 for Figure 3 Enlarged view of section AA; Figure 14 A schematic diagram showing the storage box unfolded from the partition groove and parallel to the end face of the double-layered glass plate; Figure 15 A schematic diagram showing another state in which the storage box unfolds from the partition groove and is parallel to the end face of the double-layered glass plate; Figure 16 A schematic diagram showing the positions of the storage box on different clips of the rotating plate; Figure 17 A schematic diagram showing another state in which the storage box unfolds from the partition groove and is parallel to the end face of the double-layered glass plate; Figure 18 A schematic diagram showing another state in which the storage box unfolds from the partition groove and is parallel to the end face of the double-layered glass plate; Figure 19 A schematic diagram showing another state in which the storage box unfolds from the partition groove and is parallel to the end face of the double-layered glass plate; Figure 20 This is a schematic diagram showing another state in which the storage box unfolds from the partition groove and is parallel to the end face of the double-layered glass plate.

[0017] In the diagram: 1. Storage box; 11. Storage compartment; 111. Square groove; 12. Low-temperature chamber; 13. Heating chamber; 131. Air inlet; 132. Air outlet; 133. Resistance wire; 14. Cover plate one; 141. Slide groove; 15. Cover plate two; 16. Divider groove; 2. Pop-up assembly; 21. Slide rail one; 211. Groove; 212. Circular groove; 213. Ratchet; 22. Slide rail two; 23. Rotary hole; 24. Lead screw; 25. Rotating plate; 251. Rotating shaft; 252. Locking block; 253. Torsion spring; 2 54. Ratchet structure; 26. Ratchet; 261. Spring ball; 262. Flange; 263. Spring 1; 264. Slot; 265. Ratchet tooth; 27. Stop bar; 28. Mounting slot; 29. ​​Electric motor; 3. Gear set; 31. Driving gear 1; 32. Rack; 33. Drive motor; 34. Driving gear 2; 35. Driven gear; 4. Observation assembly; 41. Double-layered glass plate; 42. Convex lens; 43. Electric push rod; 5. Scraper; 51. Silicone brush; 52. Copper square frame; 6. Vibration groove. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Please refer to Figures 1 to 19 A preferred embodiment of the present invention provides a maize germplasm resource visualization and preservation device. The device mainly includes a preservation box 1, a preservation box 11 placed in the preservation box 1, a pop-out component 2 for popping out the preservation box 11, an observation component 4 for visually observing the preservation box 11, and a gear set 3 for power transmission.

[0022] The storage box 1, as the main structure of the overall device, is used to support the installation and layout of various functional components. As part of the prior art, the storage box 1 houses a compressor for refrigeration, a control system, and a human-machine interface panel. Furthermore, the storage box 1 has a heating chamber 13 and a low-temperature chamber 12. The heating chamber 13 is located above the low-temperature chamber 12. A second cover plate 15 covers the opening of the heating chamber 13, and a first cover plate 14 covers the opening of the low-temperature chamber 12. Specifically, the second cover plate 15 is connected to the opening of the heating chamber 13 via a hinge, and the first cover plate 14 is connected to the opening of the low-temperature chamber 12 via a hinge, similar to the connection between a refrigerator door and the refrigerator body. The first cover plate 14 and the second cover plate 15 of the storage box 1 respectively provide a sealed protection for the low-temperature chamber 12 and the heating chamber 13, ensuring the stability of the internal environment. The compressor is used to refrigerate and circulate the air in the low-temperature chamber 12, maintaining a suitable low-temperature and low-humidity environment for corn seeds to meet the temperature requirements for long-term preservation of corn germplasm resources. The heating chamber 13 has air inlets 131 and air outlets 132 on both sides. Fans located at the air inlets 131 and air outlets 132 circulate air within the heating chamber 13. A resistance wire 133, electrically connected to the control system, is located at the air inlet 131. The heating effect of the resistance wire 133 ensures that the internal temperature of the heating chamber 13 is stably higher than the temperature inside the low-temperature chamber 12. The low-temperature chamber 12 and the high-temperature chamber are separated by a partition with insulating material. In this preferred embodiment, the storage box 1, through its internally divided heating chamber 13 and low-temperature chamber 12, respectively achieves temperature control for observation assistance, establishes a low-temperature and low-humidity storage environment for maize germplasm resources, and provides a temperature buffer transition after the seed resources are removed from the low-temperature environment.

[0023] When a specific maize germplasm resource needs to be retrieved, the control system can first push the corresponding storage box 11 into the heating chamber 13 via the pop-up component 2 for temporary storage for 3-5 minutes. The temperature gradient between the heating chamber 13 and the low-temperature chamber 12 is used to achieve a slow recovery of the seed temperature, avoiding direct exposure to room temperature environment where condensation water will adhere to the seed surface due to excessive temperature difference, thereby protecting the seed vigor from damage.

[0024] The storage box 1 contains a storage box 11 for storing seeds. As a prior art, the storage box 11 has multiple holes for storing individual seeds. The operator places a large number of seeds into the storage box 11 and shakes the box to fill all the holes with corn seeds. Excess seeds are discharged through a notch on the edge of the box and poured into another storage box 11. The above operation is repeated until all the seeds are stored. The opening end of the storage box 11 is covered with a lid made of transparent material. The lid and the edge of the storage box 11 have a locking structure that works together. When the lid is placed on the storage box 11, the end face of the lid closes the opening end of the holes. A flexible pad is glued to the perimeter of the storage box 11 away from the lid. The bottom surface of the flexible pad has an anti-slip texture.

[0025] In this preferred embodiment, a plurality of partition grooves 16 are provided in the low-temperature cavity 12, with the opening end of the partition groove 16 facing the opening end of the low-temperature cavity 12. The partition groove 16 provides an orderly storage space for the storage box 11, and together with the pop-out component 2, the storage box 11 can be conveniently retrieved and reset.

[0026] The pop-out assembly 2 is installed in the partition groove 16 and is used to drive the storage box 11 to slide along the length of the partition groove 16 and unfold the end face containing the corn seeds to be parallel to the corresponding end face of the cover plate 14. The pop-out assembly 2 includes a slide rail 21, a slide rail 22, a lead screw 24, a rotating plate 25, a ratchet 26, a mounting groove 28, a rack 32, and an electric motor 29.

[0027] The upper end face of slide rail 1 21 is fixed to the upper end face of the inner wall of the partition groove 16 along the depth direction of the partition groove 16 by bolts. Slide rail 1 21 and slide rail 2 22 are also integrally formed from high-strength aluminum alloy. The lower end face of slide rail 1 21 has a groove 211. Slide rail 2 22 is nested in the groove 211 of slide rail 1 21 and slides along its length. The interior of slide rail 2 22 has a threaded hole that matches the external thread of the lead screw 24. When the lead screw 24 rotates, it can stably drive slide rail 2 22 to slide along the length direction of slide rail 1 21. The end of slide rail 2 22 near the cover plate 1 14 has a rotating hole 23. The rotating hole 23 is rotatably connected to the rotating shaft 251 on the rotating plate 25. Specifically, the rotating plate 25 is a rectangular plate with a size similar to that of the storage box 11. Figure 5 and Figure 6As shown, the front end face of the rotating plate 25 is provided with a rotating shaft 251. The upper end of the rotating shaft 251 is stepped. One end of the stepped shaft of the rotating shaft 251 is inserted into a rotating hole 23 on the slide rail 22 and is rotatably connected to the rotating hole 23, thereby enabling the rotating plate 25 to rotate circumferentially around the center of the rotating hole 23. A torsion spring 253 is sleeved on the upper section of the stepped shaft of the rotating shaft 251. The two ends of the torsion spring 253 are respectively connected to the outer wall of the rotating shaft 251 and the inner wall of the rotating hole 23. The left and right end faces of the rotating plate 25 are provided with symmetrical locking blocks 252. The end face of the storage box 11 opposite to the lid is provided with a square groove 111 that fits with the locking block 252 with clearance. The inner wall of the square groove 111 is provided with a flexible friction pad. Specifically, the storage box 11 can be fixed on the rotating plate 25 by the static friction force generated by the deformation of the flexible friction pad through the cooperation of the square groove 111 and the locking block 252. When in use, the operator can directly insert the storage box 11 into the partition groove 16. The contact surface between the stepped shaft and the rotating hole 23 is provided with a damping pad. The damping pad is used to reduce the instantaneous release of the torsion spring 253, so that the rotating plate 25 maintains a slow and stable rotation state during the angle adjustment process. This avoids the rotating plate 25 from rapidly unfolding due to excessive torsion spring 253, which would cause the storage box 11 to be impacted, and further ensures the stability of the corn germplasm resources in the storage box 11.

[0028] When the lead screw 24 rotates, the slide rail 22 drives the rotating plate 25 to extend from the partition groove 16 along the path of the slide rail 21. When the slide rail 22 extends to its limit, the outer walls on both sides of the rotating plate 25 are no longer restricted by the inner wall of the partition groove 16. At this time, the elastic force of the torsion spring 253 rotates the rotating plate 25 out of the vertical projection plane of the slide rail 22 until the end face of the storage box 11 containing seeds is in contact with the corresponding end face of the cover plate 15. At this time, the state of the seeds in the storage box 11 can be intuitively understood through the observation component 4 inside the cover plate 15. While realizing the visualization of maize germplasm resources, the multiple partition grooves 16 combined with the telescopic and folding structure of the pop-up component 2 further increase the amount of germplasm that the device can store.

[0029] Meanwhile, the rotating plate 25 has multiple vibration grooves 6 corresponding to the flexible pads on the storage box 11. Miniature vibrators are installed in the vibration grooves 6. When the storage box 11 is fixed by the locking block 252 and the locking groove 264 on the end face of the rotating plate 25, the miniature vibrators can generate high-frequency micro-amplitude vibrations under the command of the control system. These vibrations are transmitted to the inside of the storage box 11 through the flexible pads on the end face of the storage box 11, causing the corn seeds in the placement holes inside the storage box 11 to shake slightly. This adjusts the posture of the seeds in the placement holes, ensuring that the morphological characteristics of each seed (such as the embryo and seed coat texture) are clearly presented in front of the observation component 4. Combined with the magnification function of the observation component 4, accurate identification and recording of the detailed characteristics of corn germplasm resources can be achieved. This vibration adjustment mechanism not only improves the comprehensiveness of observation but also avoids identification errors caused by seed posture obscuring key features, providing technical support for the accurate classification and management of germplasm resources. In addition, the lower end face of the flexible pad on the end face of the storage box 11 is provided with anti-slip texture, which can enhance the friction between the storage box 11 and the rotating plate 25 when the micro vibrator is working, prevent the storage box 11 from being displaced due to vibration, ensure the stability of the seed position during observation, and further improve the accuracy of visualization observation.

[0030] The inner walls of the groove 211 of the slide rail 21 are provided with corresponding ratchet grooves 213. The ratchet 26 is nested in the ratchet groove 213 and can slide along its length. The side of the ratchet 26 facing the slide rail 22 is provided with a stop bar 27 that abuts against the end face of the rotating plate 25. When the rotating plate 25 and the storage box 11 are together put into the partition groove 16, the stop bar 27 will abut against the outer end face of the rotating plate 25, so that the storage box 11 and the rotating plate 25 are in the initial storage posture that coincides with the depth direction of the partition groove 16. The ratchet 26 has a flange 262 at one end extending into the groove 211. The flange 262 abuts against the end of the slide rail 22. The inner wall of the low-temperature cavity 12 has a spring 263 fixedly connected to the rear end face of the flange 262. The spring 263 is initially in a compressed state. When the slide rail 22 extends out of the slide rail 21, the flange 262 on the ratchet 26 is no longer squeezed by the end of the slide rail 22. At this time, the ratchet 26 moves in the same direction as the slide rail 22 under the elastic force of the spring 263. The side wall of the ratchet 26 also has a spring bead 261. Specifically, the side wall of the ratchet groove 213 has a recess, and the spring bead 261 is installed in the recess. The spring bead 261 is connected to the inner wall of the recess by a vertically installed spring. When the spring bead 261 receives an external force, it can be squeezed into the recess. Correspondingly, the inner wall of the groove 211 is provided with a circular groove 212 that matches the shape of the spring bead 261. Before the slide rail 22 fully extends out of the groove 211, the spring bead 261 is pushed into the circular groove 212 by the elastic force of the spring in the groove, thereby fixing the position of the ratchet 26 after it extends out of the groove 211. At this time, there is a certain distance between the flange 262 and the end of the slide rail 22, which is used for the flipping and resetting of the rotating plate 25. Specifically, the outer side of the stepped shaft middle section of the rotating shaft 251 is provided with a ratchet structure 254. The ratchet 26 has multiple slots 264 on the side facing the ratchet structure 254. The slots 264 are provided with ratchet teeth 265 that mesh with the ratchet structure 254. One end of the ratchet teeth 265 is hinged to the inner wall of the slot 264, and the other end is elastically connected to the inner wall of the other side of the slot 264. The ratchet teeth 265 mesh with the ratchet structure 254 of the rotating shaft 251. Specifically, as Figure 5 and Figure 6 As shown, when the rotating plate 25 drives the storage box 11 to rotate and unfold to be parallel with the cover plate 14 under the elastic force of the torsion spring 253, the ratchet structure 254 rotates actively due to the elastic force of the torsion spring 253, so that the ratchet 265 is pressed into the slot 264, and the cover plate 14 opens smoothly. By setting a suitable transmission ratio for the ratchet 265 and the ratchet structure 254, when the slide rail 22 retracts into the groove 211, the ratchet structure 254 and the ratchet 265 form a one-way lock. The distance generated after the separation of the flange 262 and the end of the slide rail 22 is related to the rotation angle of the ratchet 265 driving the ratchet structure 254 to reverse. As the reverse rotation angle of the ratchet structure 254 approaches 90°, the rear end face of the slide rail 22 re-abuts against the flange 262, forcing the spring 1 263 to begin compressing to the initial state. During the above process, the spring bead 261 also disengages from the circular groove 212 during the reset of the ratchet 26. At this time, the rotating plate 25 can rotate back to the initial state parallel to the slide rail 22 under the external thrust or the reverse force stored by the torsion spring 253, and simultaneously drive the storage box 11 to slide into the storage position along the depth direction of the partition groove 16, preparing for the next pop-out operation.

[0031] The mounting slot 28 is located inside the storage box 1. The mounting slot 28 has multiple round holes that communicate with the low-temperature chamber 12. The end of the lead screw 24 extends into the mounting slot 28 through the round holes. The electric motor 29 is fixedly installed in the mounting slot 28. The mounting slot 28 is equipped with a gear set 3. The output end of the electric motor 29 is connected to the end of the lead screw 24 through the gear set 3. The gear set 3 is used to transmit power to each lead screw 24. The gear set 3 includes a first driving gear 31, a second driving gear 34, a driven gear 35, a rack 32, and a drive motor 33. The output shaft of the electric motor 29 is fixedly connected to the center of the first active gear 31. The first active gear 31 meshes with the rack 32 for transmission. The rack 32 is slidably arranged along the length of the mounting groove 28. A drive motor 33 is installed at the end of the rack 32 away from the first active gear 31. The output end of the drive motor 33 is fixedly connected to the center of the second active gear 34. The center of the driven gear 35 is fixedly installed at the end of the lead screw 24. The second active gear 34 meshes with the driven gear 35. When the electric motor 29 starts, the power of the drive motor 33 is transmitted to the lead screw 24 sequentially through the second active gear 34 and the driven gear 35, thereby realizing the extension and retraction of the slide rail 22 in a single partition groove 16. When the electric motor 29 starts, the first active gear 31 drives the rack 32 to move laterally, causing the second active gear 34 to move to the next driven gear 35. By repeating the above process, the slide rails 22 in multiple partition grooves 16 are extended and retracted sequentially, ensuring that the pop-out and reset actions of each storage box 11 are consistent.

[0032] Furthermore, such as Figures 12 to 20 As shown, in this preferred embodiment, there are two racks 32, which are arranged symmetrically around the center of the active tooth 31. With the different mounting methods of the torsion spring 253 and the corresponding locking block 252 on the rotating plate 25, the initial rotation direction of the storage box 11 is changed. This increases the number of corn germplasms that can be observed in the limited space of the storage box 11 in the low temperature cavity 12, and further improves the efficiency of daily inspections and the utilization rate of space.

[0033] The observation assembly 4 is installed in the middle of the inner side of the cover plate 15. The observation assembly 4 includes an electric push rod 43, a convex lens 42, a double-layer glass plate 41, a scraper 5, and a copper square frame 52. The cover plate 14 has a through groove for installing the double-layer glass plate 41. The double-layer glass plate 41 adopts a sandwich structure, which effectively blocks the heat exchange between the low-temperature cavity 12 and the outside world, and maintains the internal temperature of the low-temperature cavity 12 stable. The upper end of the cover plate 14 is provided with a groove 141 that communicates with the double-layer glass plate 41. A copper square frame 52 is fitted over the convex lens 42. The two sides of the copper square frame 52 are fixedly connected to the inner wall of the groove 141 by two vertically installed springs. The cylinder of the electric push rod 43 is installed in the heating chamber 13. The output end of the electric push rod 43 passes through the partition between the low temperature chamber 12 and the high temperature chamber and abuts against the copper square frame 52. The control system can adjust the extension and retraction of the electric push rod 43 according to the observation needs so that the output end of the electric push rod 43 enters the groove 141, assisting the convex lens 42 in observing the corn germplasm in the preservation box 11, and locking the cover plate 14 to the low temperature chamber 12. This ensures that the cover plate 14 maintains good sealing performance after multiple opening and closing, preventing the loss of cold air inside the low temperature chamber 12 and the intrusion of hot and humid air from the outside.

[0034] The scraper 5 is installed on the lower end face of the copper frame 52, and its silicone brush 51 is attached to the inner surface of the double-layer glass plate 41. When the electric push rod 43 drives the copper frame 52 to slide up and down along the slide groove 141, the scraper 5 can simultaneously remove the tiny condensations or dust adhering to the inner surface of the double-layer glass plate 41, ensuring a clear and transparent field of view and providing continuous and stable optical conditions for the visualization inspection of maize germplasm resources. In addition, since the cylinder of the electric push rod 43 is located in the heating tank, its temperature is higher than that in the low-temperature tank. The gentle heat in the heating chamber 13 can be quickly transferred to the periphery of the convex lens 42 through the copper frame 52 and the working fluid filled inside it, avoiding fogging of the lens in low-temperature environments and further improving the reliability and practicality of the observation component 4.

[0035] In addition, the human-machine interface panel of the preservation box 1 integrates a touch screen and physical buttons. Operators can input the germplasm resource number through the panel, and the control system can quickly locate the corresponding preservation box 11, trigger the pop-out component 2 to unfold it into a parallel state with the double-layer glass plate 41, and automatically start the vibrator and observation component 4 to complete the visual viewing of the seeds. After the viewing is completed, the panel issues a reset command, and the pop-out component 2 drives the preservation box 11 back into the partition slot 16 of the low temperature chamber 12, realizing fully automated operation and greatly improving the efficiency and convenience of germplasm resource management. When it is necessary to remove the preservation box 11, the preservation box 11 can be pulled out directly from the partition slot 16. At this time, the locking block 252 and the locking slot 264 separate. The staff opens the cover plate 15 and puts the removed preservation box 11 into the heating tank for 3-5 minutes. After that, the staff can take out the preservation box 11 through the magnetic door on the side of the heating chamber 13 for seed vigor testing, trait observation or germplasm exchange.

[0036] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A corn germplasm visual storage device, comprising a storage box (1) and a storage box (11) placed in the storage box (1), characterized in that, The preservation box (1) is provided with a warming cavity (13) and a low-temperature cavity (12), the opening end cover of the warming cavity (13) is provided with a cover plate two (15), and the opening end cover of the low-temperature cavity (12) is provided with a cover plate one (14); A plurality of equidistant separation grooves (16) are formed in the low-temperature cavity (12), the preservation box (11) is installed in the separation groove (16), and the separation groove (16) is provided with a pop-up assembly (2) connected with the preservation box (11); the pop-up assembly (2) is used for ejecting the preservation box (11) from the separation groove (16) and making the end face of the preservation box (11) parallel to the corresponding end face of the cover plate one (14); The cover plate one (14) is provided with a double-layer glass plate (41) parallel to the opening end of the low-temperature cavity (12), the double-layer glass plate (41) is provided with a convex lens (42) and an observation assembly (4) between the double-layer glass plate (41), the observation assembly (4) comprises an electric push rod (43) and a scraping piece (5), the scraping piece (5) is used for scraping the condensed water on the inner wall of the double-layer glass plate (41), the upper end face of the cover plate one (14) is provided with a sliding groove (141) in communication with the gap inner wall of the double-layer glass plate (41), the convex lens (42) is elastically connected in the sliding groove (141), the output end of the electric push rod (43) is in abutment with the upper end face of the convex lens (42), and when the output end of the electric push rod (43) moves, the convex lens (42) and the scraping piece (5) vertically slide along the inner wall of the double-layer glass plate (41).

2. The corn germplasm resource visualization preservation device according to claim 1, wherein The pop-up assembly (2) comprises a sliding rail one (21), a sliding rail two (22), a lead screw (24), a rotating plate (25), a ratchet (26), a mounting groove (28), a rack (32) and an electric motor (29); The upper end face of the inner wall of the separation groove (16) is provided with the sliding rail one (21) fixedly installed along the depth direction of the separation groove (16), the lower end face of the sliding rail one (21) is provided with a groove (211), the sliding rail two (22) is slidably connected with the sliding rail one (21) through the groove (211), one end of the sliding rail two (22) protruding out of the groove (211) is provided with a rotating hole (23), the side face of the rotating plate (25) is provided with a rotating shaft part (251), the upper end of the rotating shaft part (251) is in the shape of a stepped shaft, the upper end of the rotating shaft part (251) is inserted into the rotating hole (23) and is rotatably connected with the rotating hole (23), the end face of the rotating plate (25) is provided with a clamping block (252), and the lower end face of the preservation box (11) is provided with a square groove (111) in gap cooperation with the clamping block (252). The stepped shaft upper section of the rotating shaft part (251) is sleeved with a torsion spring (253), both ends of the torsion spring (253) are connected with the outer wall of the rotating shaft part (251) and the inner wall of the rotating hole (23) respectively, the outer side surface of the stepped shaft middle section of the rotating shaft part (251) is provided with a ratchet structure (254), the ratchet bar (26) is slidably connected with the slide rail one (21) through a groove (211), the middle part of the ratchet bar (26) is provided with a spring ball (261), the inner wall of the groove (211) is provided with a circular groove (212) corresponding to the spring ball (261), one end of the ratchet bar (26) extending into the groove (211) is provided with a flange (262), the flange (262) abuts against the end of the slide rail two (22), the inner wall of the low-temperature cavity (12) is provided with a spring one (263) fixedly connected with the rear end surface of the flange (262), one end surface of the ratchet bar (26) facing the rotating plate (25) is provided with a plurality of clamping grooves (264), the clamping grooves (264) are provided with ratchet teeth (265), one end of the ratchet teeth (265) is hingedly connected with the inner wall of the clamping groove (264), the other end is elastically connected with the other side inner wall of the clamping groove (264), the ratchet teeth (265) are engaged with the ratchet structure (254) of the rotating shaft part (251); The installation groove (28) is arranged in the storage box (1), a plurality of circular holes communicating with the low-temperature cavity (12) are arranged in the installation groove (28), a wire hole is arranged in the slide rail two (22) along the length direction of the slide rail two (22), the screw rod (24) is threadedly connected with the wire hole, the end of the screw rod (24) extends into the installation groove (28) through the circular hole, the electric motor (29) is fixedly arranged in the installation groove (28), the installation groove (28) is provided with a gear set (3), the output end of the electric motor (29) is connected with the end of the screw rod (24) through the gear set (3), and the gear set (3) is used for transmitting power to each screw rod (24).

3. The corn germplasm resource visual storage device according to claim 1, wherein the observation assembly (4) comprises a copper square frame (52), the length of the copper square frame (52) is equal to that of the double-layer glass plate (41), the convex lens (42) is arranged in the square frame, the square frame is a hollow structure, the square frame is filled with a working medium, and vacuum backflow welding is adopted for sealing.

4. The corn germplasm resource visual storage device according to claim 3, wherein the cylinder body of the electric push rod (43) is arranged in the temperature rising cavity (13), and the scraping member (5) is arranged on the frame of the convex lens (42).

5. The corn germplasm resource visual storage device according to claim 2, wherein the scraping member (5) comprises a silica gel brush (51), the silica gel brush (51) completely wraps the edge of the square frame, and the thickness of the silica gel brush (51) is greater than the distance between the inner end surfaces of the double-layer glass plate (41).

5. The corn germplasm resource visual storage device according to claim 2, wherein the gear set (3) comprises a driving tooth one (31), a rack (32), a driving motor (33), a driving tooth two (34) and a driven tooth (35). ​ ​ ​ The center of the driving tooth one (31) is fixedly installed on the output end of the electric motor (29), the rack (32) is in sliding connection with the inner wall of the installation groove (28) and is in meshing connection with the driving tooth one (31), the main body of the driving motor (33) is installed on the front end face of the rack (32), the center of the driving tooth two (34) is fixedly connected with the output end of the driving motor (33), and the center of the driven tooth (35) is fixedly connected with one end of the lead screw (24) in the installation groove (28). 6.The corn germplasm resource visual storage device according to claim 4, characterized in that, The storage box (1) is provided with an air inlet (131) and an air outlet (132) communicating with the heating cavity (13), the air inlet (131) and the air outlet (132) are provided with fans, one side of the air inlet (131) facing the heating cavity (13) is provided with a resistance wire (133), and the resistance wire (133) corresponds to the cylinder body of the electric push rod (43). 7.The corn germplasm resource visual storage device according to claim 2, characterized in that, Corresponding to the inner wall of the groove (211), the two sides are provided with ratchet grooves (213), a single ratchet bar (26) is in sliding connection with any ratchet groove (213), the elastic force direction of the torsional spring (253) corresponds to the installation position of the ratchet bar (26), and the ratchet bar (26) is provided with a blocking bar (27) abutting against the end face of the rotating plate (25) on one side of the sliding rail two (22). 8.The corn germplasm resource visual storage device according to claim 5, characterized in that, The number of the rack (32) is two, and the center of the driving tooth one (31) is centrally symmetric. 9.The corn germplasm resource visual storage device according to claim 2, characterized in that, A plurality of vibration exciting grooves (6) corresponding to the periphery of the storage box (11) are formed in the rotating plate (25), a micro vibration exciter is installed in the vibration exciting groove (6), a flexible pad is arranged on the end face of the storage box (11) corresponding to the position of the vibration exciting groove (6), and an anti-skid pattern is arranged on the lower end face of the flexible pad. 10.The corn germplasm resource visual storage device according to claim 2, characterized in that, A damping gasket is arranged between the stepped shaft of the rotating shaft part (251) and the abutting surface of the rotating hole (23).

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