A maintenance device to improve the stress resistance of autumn-planted seedlings in the extremely cold regions of Northeast China

Abstract

This utility model provides a maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold regions of Northeast China. Belonging to the field of seedling maintenance, it includes a main body with a connecting rod fixedly connected to its upper surface. A sleeve ring is movably connected to one side of the connecting rod. This utility model, through a double-layered structure of an inner and outer cold-resistant sleeve ring, combined with a cold-resistant insulating inner protective plate fitted to the inner ring, provides robust insulation protection for autumn-planted seedlings, effectively blocking the low-temperature invasion of the extremely cold regions of Northeast China. The inner and outer cold-resistant sleeve rings are tightly fitted together through the cooperation of a fixing block, nut, and threaded rod, reducing the penetration of cold air. The precise matching of the fitting opening with the cold-resistant insulating inner protective plate ensures that the insulation layer is stable and does not fall off, continuously maintaining a suitable temperature for the seedlings, significantly improving their stress resistance in extremely cold environments, reducing the risk of frost damage, and increasing the overwintering survival rate.

Description

Technical Field

[0001] This utility model relates to the field of seedling maintenance, specifically to a maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold regions of Northeast China. Background Technology

[0002] Seedling maintenance refers to a series of management and protection measures carried out on seedlings from planting to growth, aiming to create a suitable growth environment for seedlings, improve their survival rate, growth quality and stress resistance, and ensure that seedlings can grow healthily.

[0003] A search revealed that Chinese patent CN203934419U discloses a "Seedling Protective Cover," which includes a conical sleeve for protecting the root and stem parts of plants. The sleeve has a seedling outlet at the upper end and an insertion part at the lower end. This utility model's seedling protective cover utilizes different trumpet-shaped designs depending on the climate: in rainy areas, a gradually tapering trumpet shape is chosen to facilitate rainwater collection and retention; in windy and sandy areas, a gradually tapering trumpet shape is chosen to prevent sand from entering the cover and burying the plant stems. Ventilation holes on the sleeve effectively utilize natural wind to cool the plants, ensuring optimal temperature conditions for growth, and also increase the stability against wind and sand. These measures ensure a high survival rate for the plants even with minimal human intervention.

[0004] However, the following defects still exist:

[0005] (1) It is impossible to maintain a suitable temperature for the seedlings. At the same time, cold air can easily seep in through the gaps, making the seedlings less resistant to adverse conditions, with a high risk of frost damage and a low overwintering survival rate.

[0006] (2) The installation structure is not designed properly, and it is difficult to assemble and adjust the position of the cold-resistant ring. It cannot adapt to seedlings of different specifications and growth heights. In addition, the existing device has a complex structure for adjusting the fit of the protective components, which makes it difficult to maintain a good maintenance effect in complex environments and during the growth of seedlings, and its practicality is poor.

[0007] Therefore, a maintenance device is proposed to improve the stress resistance of autumn-planted seedlings in the extremely cold regions of Northeast China. Utility Model Content

[0008] The purpose of this utility model is to address the existing problems.

[0009] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0010] The present invention is as follows: a maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China, comprising a main body of the maintenance device, wherein a plug rod is fixedly connected to the upper surface of the main body of the maintenance device, and a sleeve ring is movably connected to one side of the plug rod.

[0011] An installation plate is fixedly connected to the bottom surface of the main body of the maintenance device. A connecting block is fixedly connected to one side of the sleeve ring. An anti-cold inner sleeve ring is fixedly connected to one side of the connecting block. An anti-cold outer sleeve ring is fitted to the outer ring surface of the anti-cold inner sleeve ring for limiting.

[0012] A fixing block is fixedly connected to one side of the cold-resistant outer ring, and a nut is fixedly connected to one side of the fixing block. A cold-resistant and heat-insulating inner protective plate is attached to the inner ring surface of the cold-resistant inner ring.

[0013] As a preferred technical solution of this utility model, a threaded rod is movably connected to one side of the nut, and the threaded rod is connected between the nut and the fixing block. The threaded rod engages with the nut's thread, allowing adjustment of the tightness of the fit between the outer and inner cold-resistant rings by rotating the threaded rod. In the extremely cold regions of Northeast China, the distance between the two rings can be flexibly adjusted as the seedlings grow or the temperature changes, ensuring that the inner and outer cold-resistant rings always effectively wrap around the seedlings, preventing cold air from entering through gaps, and preventing pressure on the seedlings due to overly tight wrapping, thus providing suitable growing space and cold protection for the seedlings.

[0014] As a preferred technical solution of this utility model, the inner surface of the connecting ring is provided with a mating opening, and the size of the mating opening and the plug rod are matched. The precise matching of the mating opening and the plug rod ensures that the connecting ring can be stably and movably connected to the plug rod. This facilitates the adjustment of the position of the inner and outer cold-resistant rings by the connecting ring to accommodate seedlings of different heights, and also prevents the connecting ring from shaking or falling off under the action of wind or other external forces. This structural design makes the assembly and adjustment of the device more convenient, and the protective position can be flexibly changed according to the growth height of the autumn-planted seedlings, improving the adaptability of the device.

[0015] As a preferred technical solution of this utility model, the nut is connected to the cold-resistant outer ring via a fixing block. The fixing blocks are symmetrically arranged vertically with the horizontal bisector of the nut as the axis of symmetry. This symmetrical arrangement of fixing blocks securely fixes the nut to the cold-resistant outer ring, preventing the nut from shifting or loosening during the rotation and adjustment of the threaded rod, thus ensuring the stability of the adjustment process. In the strong wind environment of the extremely cold Northeast region, this robust connection structure effectively resists external impacts, preventing gaps from appearing between the cold-resistant outer ring and the cold-resistant inner ring due to component loosening, ensuring that the cold-resistant protection effect is not affected, and extending the service life of the device.

[0016] As a preferred technical solution of this utility model, the mounting plate has multiple mounting openings on one side. These openings provide various options for the fixed installation of the device. Bolts, ground nails, and other connectors can be passed through these openings to securely fix the mounting plate to the frozen ground in extremely cold regions of Northeast China or other complex terrains. The multiple openings distribute the pressure of the device on the ground, preventing it from tipping over during thawing of frozen ground or strong winds, ensuring that the device consistently provides stable protection for the seedlings. Simultaneously, it facilitates adjustments to the installation position according to the actual terrain, improving the flexibility and stability of the installation.

[0017] As a preferred embodiment of this invention, a knob handle is fixedly connected to one side of the threaded rod, and the knob handle is connected between the threaded rod and the nut. The knob handle increases the contact area between the operator's hand and the threaded rod, making the rotation of the threaded rod more effortless and convenient. Even in the extremely cold environments of Northeast China, operators wearing gloves can easily turn the knob handle to quickly adjust the tightness of the outer and inner cold-resistant rings without the need for additional tools, thus improving the ease of operation and efficiency of the device.

[0018] As a preferred technical solution of this utility model, the inner surface of the cold-resistant inner ring has a fitting opening, and the size of the fitting opening and the cold-resistant heat-insulating inner protective plate are matched. The precise matching of the fitting opening and the cold-resistant heat-insulating inner protective plate ensures that the cold-resistant heat-insulating inner protective plate is tightly attached to the inner surface of the cold-resistant inner ring and will not fall off or shift due to external force or temperature changes. The cold-resistant heat-insulating inner protective plate can fully utilize its heat insulation performance, reduce heat exchange between seedlings and the extremely cold external environment, create a warm microenvironment for seedlings, significantly improve the frost resistance of seedlings in the extremely cold regions of Northeast China, and ensure the safe overwintering of seedlings.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. Through the double-layered structure of the inner and outer cold-resistant rings, combined with the cold-resistant insulation inner panel that fits snugly inside the inner ring, it provides robust insulation protection for autumn-planted seedlings, effectively blocking the low-temperature invasion of the extremely cold Northeast region. The inner and outer cold-resistant rings are tightly fitted together by the cooperation of fixing blocks, nuts, and threaded rods, reducing the penetration of cold air; the precise matching of the fitting opening with the cold-resistant insulation inner panel ensures that the insulation layer is stable and does not fall off, continuously maintaining a suitable temperature for the seedlings, significantly improving the seedlings' resistance to extreme cold environments, reducing the risk of frost damage, and increasing the overwintering survival rate.

[0021] 2. The device can be quickly and securely fixed in the soil around the seedlings through multiple mounting openings on the mounting plate, ensuring stable installation and simple operation. The matching design of the connecting opening of the collar and the plug-in rod facilitates the assembly and position adjustment of the inner and outer cold-resistant collars, adapting to the maintenance needs of seedlings of different sizes. Furthermore, the knob handle drives the threaded rod to rotate within the nut, easily adjusting the fit between the outer and inner cold-resistant collars. Symmetrically arranged fixing blocks ensure stability during adjustment, allowing the device to maintain excellent maintenance effects throughout the complex terrain of Northeast China and the seedling growth process, demonstrating significant practicality. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of the maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China provided by this utility model;

[0023] Figure 2 A bottom view of the maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China provided by this utility model;

[0024] Figure 3 A side sectional view of the maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China provided by this utility model;

[0025] Figure 4 This utility model provides a maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold regions of Northeast China. Figure 1 Enlarged view of the structure at point A in the middle;

[0026] Figure 5 A top view schematic diagram of the maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China, provided by this utility model.

[0027] The diagram shows: 1. Main body of the maintenance device; 2. Mounting plate; 3. Mounting opening; 4. Plug-in rod; 5. Sleeve ring; 6. Connecting block; 7. Cold-resistant inner sleeve ring; 8. Cold-resistant outer sleeve ring; 9. Cold-resistant and heat-insulating inner protective plate; 10. Fixing block; 11. Nut; 12. Threaded rod; 13. Knob handle; 14. Butt joint opening; 15. Fitting opening. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0029] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] Please see Figure 1-5 This utility model provides a technical solution: a maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China, including a maintenance device body 1, a plug rod 4 fixedly connected to the upper surface of the maintenance device body 1, a sleeve ring 5 movably connected to one side of the plug rod 4, and an installation plate 2 fixedly connected to the bottom surface of the maintenance device body 1.

[0033] In this embodiment, a threaded rod 12 is movably connected to one side of the nut 11, and the threaded rod 12 is connected between the nut 11 and the fixing block 10. The threaded rod 12 is threadedly engaged with the nut 11, and the tightness of the fit between the cold-resistant outer ring 8 and the cold-resistant inner ring 7 can be adjusted by rotating the threaded rod 12. In the extremely cold regions of Northeast China, the spacing between the inner and outer cold-resistant rings 7 and 8 can be flexibly adjusted as the seedlings grow or as the temperature changes. This ensures that the inner cold-resistant ring 7 and outer cold-resistant ring 8 always effectively wrap around the seedlings, preventing cold air from entering through gaps and avoiding pressure on the seedlings due to overly tight wrapping. This provides suitable growing space and cold protection for the seedlings. The inner surface of the connecting ring 5 has a mating opening 14, and the size of the mating opening 14 matches that of the insertion rod 4. This precise matching of the mating opening 14 and the insertion rod 4 ensures that the connecting ring 5 can be stably and movably connected to the insertion rod 4. This facilitates the adjustment of the position of the inner cold-resistant ring 7 and outer cold-resistant ring 8 by the connecting ring 5 to accommodate seedlings of different heights, and also prevents the connecting ring 5 from shaking or falling off under the influence of wind or other external forces. This structural design makes the assembly and adjustment of the device more convenient, and the protective position can be flexibly changed according to the growth height of the autumn-planted seedlings, improving the adaptability of the device.

[0034] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, a connecting block 6 is fixedly connected to one side of the sleeve ring 5, an anti-cold inner sleeve ring 7 is fixedly connected to one side of the connecting block 6, and an anti-cold outer sleeve ring 8 is limitedly sleeved on the outer ring surface of the anti-cold inner sleeve ring 7.

[0035] In this embodiment, the nut 11 is connected to the cold-resistant outer ring 8 via the fixing block 10. The fixing blocks 10 are symmetrically arranged about the horizontal axis of the nut 11. The symmetrical fixing blocks 10 can firmly fix the nut 11 to the cold-resistant outer ring 8, so that the nut 11 will not shift or loosen during the rotation adjustment of the threaded rod 12, ensuring the stability of the adjustment process. In the strong wind environment of the extremely cold Northeast region, this stable connection structure can effectively resist the impact of external forces and avoid gaps between the cold-resistant outer ring 8 and the cold-resistant inner ring 7 due to loose parts, ensuring that the cold-resistant protection effect is not affected and extending the service life of the device. The mounting plate 2 has multiple mounting openings 3 on one side, which provide a variety of options for the fixed installation of the device. Bolts, ground nails and other connectors can be passed through the mounting openings 3 to firmly fix the mounting plate 2 to the frozen ground or other complex terrain in the extremely cold Northeast region. The design with multiple openings can distribute the pressure of the device on the ground, preventing the device from tipping over during thawing of frozen soil or strong winds, ensuring that the device always provides stable protection for the seedlings. At the same time, it is easy to adjust the installation position according to the actual terrain, improving the flexibility and stability of the installation.

[0036] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, a fixing block 10 is fixedly connected to one side of the cold-resistant outer ring 8, a nut 11 is fixedly connected to one side of the fixing block 10, and a cold-resistant and heat-insulating inner protective plate 9 is attached to the inner ring surface of the cold-resistant inner ring 7.

[0037] In this embodiment, the mounting plate 2 has multiple mounting openings 3 on one side. These multiple openings provide various options for the fixed installation of the device. Bolts, ground nails, and other connectors can be passed through the mounting openings 3 to securely fix the mounting plate 2 to the frozen ground or other complex terrain in the extremely cold Northeast region. The multiple openings disperse the pressure of the device on the ground, preventing it from tipping over during thawing of frozen ground or strong winds, ensuring the device always provides stable protection for the seedlings. They also facilitate adjustment of the installation position according to the actual terrain, improving installation flexibility and stability. The inner ring surface of the cold-resistant inner ring 7 has a fitting opening 15, and the fitting opening 15 and the cold-resistant insulation inner protective plate 9 are matched in size. This precise matching ensures that the cold-resistant insulation inner protective plate 9 fits tightly against the inner ring surface of the cold-resistant inner ring 7, preventing it from falling off or shifting due to external forces or temperature changes. The cold-resistant and heat-insulating inner lining 9 can fully utilize its heat insulation performance, reduce heat exchange between seedlings and the extremely cold external environment, create a warm microenvironment for seedlings, significantly improve the frost resistance of seedlings in the extremely cold Northeast region, and ensure the safe overwintering of seedlings.

[0038] Specifically, when using this maintenance device to improve the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China: place the mounting plate 2 at the bottom of the main body 1 of the maintenance device on the ground around the autumn-planted seedlings in the extremely cold region of Northeast China. Through the multiple mounting openings 3 on one side of the mounting plate 2, use bolts or ground nails or other connectors to pass through the openings and firmly fix the mounting plate 2 to the frozen ground, ensuring that the main body 1 of the maintenance device stands vertically, providing stable support for the subsequent maintenance structure. Then, put the connecting ring 5 on the plug-in rod 4 on the upper surface of the main body 1 of the maintenance device through the inner ring's docking opening 14, so that the docking opening 14 and the plug-in rod 4 are precisely matched, ensuring that the connecting ring 5 is firmly connected and its height can be flexibly adjusted. The connecting ring 5 drives the cold-resistant inner ring 7 to surround the seedling through the connecting block 6. The cold-resistant and heat-insulating inner protective plate 9 is installed by fitting through the fitting opening 15 of the inner ring of the cold-resistant inner ring 7. Then, the cold-resistant outer ring 8 is fitted onto the outer ring of the cold-resistant inner ring 7 to form a double cold-resistant protection structure. Rotate the knob handle 13 on one side of the threaded rod 12 to make the threaded rod 12 rotate in the inner ring of the nut 11. Since the nut 11 is connected to the cold-resistant outer ring 8 through the symmetrically arranged fixing blocks 10, the threaded rod 12 pushes the cold-resistant outer ring 8 to fit tightly with the cold-resistant inner ring 7. Adjust the tightness according to the thickness of the seedling to ensure that the cold-resistant and heat-insulating inner protective plate 9 tightly wraps the seedling and avoids compressing the seedling growth. According to the growth height of the seedling, slide the position of the connecting ring 5 on the insertion rod 4 to drive the cold-resistant inner ring 7 and the cold-resistant outer ring 8 to rise and fall synchronously. After adjusting to the height required to cover the seedling, the friction between the docking opening 14 and the insertion rod 4 is used to achieve temporary fixation. In case of a sudden drop in temperature or strong winds, the threaded rod 12 can be finely adjusted again using the knob handle 13 to ensure a seamless fit between the cold-resistant outer ring 8 and the cold-resistant inner ring 7, enhancing the cold-resistant protection effect. When it is necessary to replace the cold-resistant insulation inner protective plate 9 or to repair the device, turn the knob handle 13 in the opposite direction to disengage the threaded rod 12 from one side of the cold-resistant inner ring 7, remove the cold-resistant outer ring 8 from the outer ring of the cold-resistant inner ring 7, and then replace the cold-resistant insulation inner protective plate 9 through the fitting opening 15. If the entire device needs to be disassembled, remove the connector in the installation opening 3, remove the mounting plate 2, and then remove the sleeve ring 5 from the plug rod 4 to complete the disassembly and storage of the device.

[0039] All technical features in this embodiment can be freely combined according to actual needs.

[0040] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China, comprising a main body of the maintenance device (1), characterized in that, A plug rod (4) is fixedly connected to the upper surface of the main body (1) of the maintenance device, and a sleeve ring (5) is movably connected to one side of the plug rod (4); The bottom surface of the main body (1) of the maintenance device is fixedly connected to an installation plate (2), and a connecting block (6) is fixedly connected to one side of the sleeve ring (5); A cold-resistant inner ring (7) is fixedly connected to one side of the connecting block (6), and a cold-resistant outer ring (8) is fitted onto the outer ring surface of the cold-resistant inner ring (7). A fixing block (10) is fixedly connected to one side of the cold-resistant outer ring (8), and a nut (11) is fixedly connected to one side of the fixing block (10). A cold-resistant heat-insulating inner protective plate (9) is attached to the inner ring surface of the cold-resistant inner ring (7).

2. The maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China according to claim 1, characterized in that, A threaded rod (12) is movably connected to one side of the nut (11), and the threaded rod (12) is connected between the nut (11) and the fixing block (10).

3. The maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China according to claim 1, characterized in that, The inner surface of the sleeve ring (5) is provided with a mating opening (14), and the mating opening (14) and the plug rod (4) are matched in size.

4. The maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China according to claim 1, characterized in that, The nut (11) is connected to the fixing block (10) and the cold-resistant outer ring (8), and the fixing block (10) is symmetrically arranged with the horizontal bisector of the nut (11) as the axis of symmetry.

5. The maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China according to claim 1, characterized in that, The mounting plate (2) has a mounting opening (3) on one side, and there are multiple mounting openings (3).

6. The maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China according to claim 2, characterized in that, A knob handle (13) is fixedly connected to one side of the threaded rod (12), and the knob handle (13) is connected between the threaded rod (12) and the nut (11).

7. The maintenance device for improving the stress resistance of autumn-planted seedlings in the extremely cold region of Northeast China according to claim 1, characterized in that, The inner ring surface of the cold-resistant inner ring (7) is provided with a fitting opening (15), and the fitting opening (15) and the cold-resistant heat-insulating inner protective plate (9) are matched in size.

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