All-steel frame double cotton curtain insulated seedling shed structure

Abstract

This utility model relates to the field of agricultural facility technology, specifically a full steel frame double cotton curtain insulated seedling shed structure, including main fixing rods. Multiple sets of main fixing rods are provided, with a fixing arched frame fixedly installed at the upper end of each pair of main fixing rods located at one end. An installation groove is opened above the middle of each main fixing rod, and a slider is slidably engaged in the middle of each of the multiple installation grooves. This utility model, through a combination of adjustable spacing and electric clamping and translation design, eliminates the need for manual dragging and point-by-point fixing when laying double-layer cotton curtains. Simply adjust the adjustable arched frame downwards using a handwheel to expand the laying space, then use an electric telescopic rod to drive the clamping plate to precisely clamp the cotton curtain. A linear motor drives the clamping assembly to translate along the guide rod, completing the laying of the full-length cotton curtain. Simultaneously, the design of the fixing grooves, with semi-open ends and a fully open middle, avoids restricted component movement, further improving laying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural facility technology, specifically to a full steel frame double cotton curtain heat-insulating seedling shed structure. Background Technology

[0002] Greenhouses are widely used in agricultural production, especially in the north. In order to ensure the normal growth of crops and avoid yield reduction, greenhouses that can maintain a suitable temperature for crop growth are needed. However, in the north, winters are windy, the temperature is low, and the temperature difference between day and night is large. Ordinary greenhouses are prone to poor heat preservation, damage to the transparent film, and even damage to the support frame under strong winds. Therefore, high-strength steel structure heat preservation seedling greenhouses are usually used.

[0003] In traditional double-cotton-curtain insulated seedling greenhouses, the cotton curtains are usually laid on the outermost layer. Laying them requires multiple people to work together to drag the heavy double-layered curtains and secure them section by section with pressure lines or clips. This process is cumbersome, time-consuming, and labor-intensive. Furthermore, it's difficult to ensure the curtains are laid flat throughout the greenhouse, easily resulting in wrinkles and gaps that create air leaks, significantly reducing the insulation effect. At the same time, the outermost layer of cotton curtains is directly exposed to rain, snow, strong winds, and direct sunlight, making it prone to moisture absorption, aging, and tearing. This not only drastically shortens its lifespan but also causes a sharp decline in insulation performance due to moisture absorption, indicating certain shortcomings. Utility Model Content

[0004] The purpose of this utility model is to provide a fully steel-framed double-cotton-curtain insulated seedling shed structure to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: The all-steel frame double-cotton-curtain insulated seedling shed structure includes main fixing rods, of which multiple sets are provided. A fixed arched frame is fixedly installed at the upper end of each pair of main fixing rods located at one end. An installation groove is provided above the middle of each main fixing rod. A slider is slidably engaged in the middle of each of the multiple installation grooves. A partition is fixedly installed in the middle of one of the installation grooves. A lead screw is rotatably installed on the partition and the upper middle of the main fixing rod. Guide rods are fixedly installed in the middle of the remaining installation grooves. An adjustable arched frame is fixedly installed at the upper end of each pair of sliders located at one end. A connecting plate is fixedly connected between the lower ends of one side of each of the multiple adjustable arched frames. Guide rods are fixedly installed on both sides of the middle of each of the multiple fixed arched frames. A fixing plate is slidably engaged on the surface of the guide rod. A clamping plate is provided below the fixing plate.

[0006] In some embodiments, the sliders are slidably engaged in the middle of the corresponding mounting slots, and the sliders are slidably engaged or threadedly connected to the corresponding guide rods and lead screws.

[0007] In some embodiments, a base plate is fixedly installed at the lower end of each main fixing rod, and screw holes are provided on both sides of the middle part of the base plate.

[0008] In some embodiments, a fixing groove is provided in the middle of each of the plurality of fixed arched frames. The fixing grooves at both ends are semi-open, and the fixing groove in the middle is fully open. The guide rod is located in the middle of the plurality of fixing grooves.

[0009] In some embodiments, a linear motor is fixedly installed on one side of the fixed plate, and the linear motor is slidably engaged with the surfaces of two guide rods. An electric telescopic rod is fixedly installed below the middle of the fixed plate, and a clamping plate is fixedly installed at the output end of the electric telescopic rod. The clamping plate and the arc of the adjustable arch frame are in contact with each other, and the arc of the adjustable arch frame and the main fixed rod are in contact with each other. The fixed plate and the linear motor are both slidably engaged with the middle of the corresponding fixed groove.

[0010] In some embodiments, a handwheel is fixedly installed at one end of the lead screw, and a limit screw is threadedly connected to one side of the handwheel, with one end of the limit screw abutting against the partition.

[0011] This utility model has at least the following beneficial effects: 1. This utility model allows for quick and efficient installation of cotton curtains. Through a combination of adjustable spacing and electric clamping and sliding design, the double-layer cotton curtain can be laid without manual dragging or point-by-point fixing. Simply adjust the adjustable arched frame downwards using a handwheel to expand the laying space, then use an electric telescopic rod to drive the clamping plate to precisely hold the cotton curtain. A linear motor then drives the clamping assembly to slide along the guide rod, completing the laying of the entire length of the cotton curtain. Simultaneously, the semi-open fixing groove design at both ends and the fully open middle avoids restricted component movement, further improving laying efficiency.

[0012] 2. This utility model offers a stable and secure installation with excellent sealing and insulation, ensuring a safe and reliable structure. The main fixing rod is bolted to the ground via screw holes in the base plate. The all-steel structure, combined with the precise fit of the slider, mounting groove, and guide rod, ensures the shed's strong wind and pressure resistance, preventing displacement or tilting during severe weather. The adjustable arched frame and fixed arched frame fit tightly against the cotton curtain, and manual adjustment of the edge fit effectively eliminates gaps between the cotton curtain and the steel frame. Furthermore, the outer waterproof and windproof film provides protection, blocking air leakage channels, enhancing insulation, protecting the cotton curtain from corrosion, and extending its service life, thus balancing structural safety and practical insulation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the appearance and structure of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of this utility model; Figure 3This is a schematic cross-sectional view of the present invention. Figure 4 This is a schematic diagram of the cross-sectional structure of the slot of this utility model; Figure 5 This is a cross-sectional disassembly diagram of the slot structure of this utility model.

[0014] In the diagram: 1. Main fixing rod; 11. Fixed arch frame; 12. Mounting groove; 13. Adjustable arch frame; 14. Connecting plate; 15. Partition plate; 16. Screw; 17. Handwheel; 18. Limiting screw; 19. Sliding block; 20. Guide rod; 21. Guide rod; 22. Linear motor; 23. Fixing plate; 24. Electric telescopic rod; 25. Clamping plate; 26. Base plate; 27. Screw hole; 28. Fixing groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1: Please refer to Figure 1 - Figure 5This utility model provides a technical solution: a full steel frame double cotton curtain heat-insulating seedling shed structure, including a main fixing rod 1, which is provided in multiple sets. Each pair of main fixing rods 1 located at one end has a fixed arched frame 11 fixedly installed at its upper end. Each main fixing rod 1 has an installation groove 12 opened above its middle section. A slider 19 is slidably engaged in the middle of each of the multiple installation grooves 12. A partition 15 is fixedly installed in the middle of one of the installation grooves 12. A screw rod 16 is rotatably installed on the partition 15 and the upper middle of the main fixing rod 1. Guide rods 20 are fixedly installed in the middle of the remaining installation grooves 12. An adjustable arched frame 13 is fixedly installed at the upper end of each pair of sliders 19 located at one end. A connecting plate 14 is fixedly connected between the lower ends of the multiple adjustable arched frames 13 on one side. The multiple fixed arched frames 1... Guide rods 21 are fixedly installed on both sides of the middle section. A fixing plate 23 is slidably engaged with the surface of the guide rods 21. A clamping plate 25 is provided below the fixing plate 23. A linear motor 22 is fixedly installed on one side of the fixing plate 23. The linear motor 22 is slidably engaged with the surface of the two guide rods 21. An electric telescopic rod 24 is fixedly installed below the middle section of the fixing plate 23. A clamping plate 25 is fixedly installed at the output end of the electric telescopic rod 24. The clamping plate 25 and the arc of the adjustable arch frame 13 are in contact with each other. The arc of the adjustable arch frame 13 and the main fixing rod 1 are in contact with each other. The fixing plate 23 and the linear motor 22 are both slidably engaged with the middle of the corresponding fixing groove 28. A handwheel 17 is fixedly installed at one end of the screw 16. A limit screw 18 is threadedly connected to one side of the handwheel 17. One end of the limit screw 18 abuts against the partition plate 15.

[0017] In this embodiment, when laying a double-layer cotton curtain, the user can flip the limiting screw 18 to release the limiting screw 18 from the handwheel 17. Then, the user can turn the handwheel 17 to drive the lead screw 16 to rotate, thereby driving the threaded slider 19 and the adjustable arch frame 13 above it to move down along the lead screw 16 and guide rod 20 in the middle of the mounting groove 12. Since multiple adjustable arch frames 13 are connected in series through the connecting plate 14, multiple adjustable arch frames 13 will move down synchronously. During the downward movement, the distance between the adjustable arch frame 13 and the fixed arch frame 11 will gradually increase. Then, the electric telescopic rod 24 is activated to drive the clamping plate 25 down. The user can first pass the double-layer cotton curtain to be laid through the middle of the fixed arch frame 11 and the adjustable arch frame 13 located at the end, and then place it in the middle of the clamping plate 25 and the upper linear motor 22 and the fixed plate 23. Then, the clamping plate 25 is moved up by the retraction of the output end of the electric telescopic rod 24. The double-layered cotton curtain is held in place and then moved along the guide rod 21 to the middle of the fixed arch frame 11 at the other end under the drive of the linear motor 22. Since the fixing slots 28 at both ends are semi-open, the movement of the fixing plate 23 and the electric telescopic rod 24 driven by the linear motor 22 is not restricted. When the electric telescopic rod 24 holding the double-layered cotton curtain, the fixing plate 23, and the linear motor 22 move to the fixing slot 28 opened in the fixed arch frame 11 at the end, the main part of the double-layered cotton curtain has been laid. The user then rotates the handwheel 17 in the opposite direction to drive the screw 16 to rotate, thereby driving multiple adjustable arch frames 13 to rise synchronously until the multiple adjustable arch frames 13 are once again in contact with the inner wall of the fixed arch frame 11, thus completing the fixing and laying of the double-layered cotton curtain. During the laying process, the two sides of the double-layered cotton curtain can be adjusted to the position in contact with the fixed arch frame 11 and the adjustable arch frame 13 with manual assistance.

[0018] Example 2: As Figure 1 - Figure 3 As shown, the sliders 19 are slidably engaged in the middle of the corresponding mounting slots 12. The sliders 19 are slidably engaged and threadedly connected with the corresponding guide rods 20 and lead screws 16. The lower ends of the main fixing rods 1 are all fixedly installed with base plates 26. The two sides of the middle of the base plates 26 are provided with screw holes 27. The middle of the multiple fixed arched frames 11 is provided with fixing slots 28. The fixing slots 28 at both ends are semi-open, and the fixing slots 28 in the middle are fully open. The guide rods 21 are located in the middle of the multiple fixing slots 28.

[0019] In this embodiment, the bottom plate 26 at the lower end of the main fixing rod 1 is equipped with screw holes 27, which can firmly fix the shed to the ground with bolts, significantly improving wind resistance and preventing the shed from shifting or tilting in strong winds. The fixing slots 28 at both ends adopt a semi-open design and the middle part is a fully open design, which facilitates the overall installation and disassembly of components such as guide rods 21 and linear motors 22, and provides sufficient space for the translation of clamping components, avoiding adjustment restrictions caused by end obstruction. The main fixing rod 1 and the arch frame are both steel structures, and a waterproof and windproof membrane is laid on the outside of the main fixing rod 1 and the fixed arch frame 11, which can effectively protect the double-layer cotton curtain inside from damage.

[0020] Working principle: like Figure 1 - Figure 5 As shown, the base plate 26 at the lower end of the main fixing rod 1 is precisely locked to the ground through the screw holes 27 on both sides, using bolts to anchor the entire greenhouse in the seedling area, preventing the greenhouse from shifting or tilting due to strong winds, rain, snow, or other weather conditions, and providing a stable foundation for the subsequent laying and use of cotton curtains. At the same time, a waterproof and windproof film is pre-laid on the outside of the main fixing rod 1 and the fixed arch frame 11, forming the first protective barrier, providing waterproof and windproof protection for the internal double-layer cotton curtains. Before laying the double-layer cotton curtains, the limiting screw 18 can be rotated to separate it from the partition 15, canceling the locking limit of the handwheel 17 and releasing the rotation restriction of the screw rod 16. Then, rotating the handwheel 17 drives the screw rod 16 to rotate. Since the slider 19 is threadedly connected to the screw rod 16, and the slider 19 is simultaneously slidably engaged with the mounting groove 12 and the guide rod 20, when the screw rod 16 rotates, it drives the corresponding slider 19 to slide downwards along the mounting groove 12. Because multiple adjustable arched frames 13 are connected in series via connecting plates 14, the downward movement of a single slider 19 will cause all adjustable arched frames 13 to move synchronously along the guide rod 20 and mounting groove 12, gradually widening the gap between the adjustable arched frames 13 and the fixed arched frames 11, thus creating sufficient space for laying cotton curtains. The main fixed rod 1, the fixed arched frames 11, and the adjustable arched frames 13, all made of steel, are subjected to balanced forces. Combined with the precise cooperation of the slider 19, the mounting groove 12, and the guide rod 20, this ensures the overall wind and pressure resistance of the greenhouse structure, guaranteeing structural safety during the seedling cultivation process.

[0021] Then, the electric telescopic rod 24 is activated, and its output end extends, causing the clamping plate 25 to move downward, creating an opening between the clamping plate 25 and the adjustable arched frame 13, facilitating the placement of the double-layer cotton curtain. The operator can pass one end of the double-layer cotton curtain through the gap between the fixed arched frame 11 and the adjustable arched frame 13 at the end of the shed, and then place the corresponding part of the cotton curtain in the clamping area between the clamping plate 25 and the fixed plate 23. The output end of the electric telescopic rod 24 is then retracted, causing the clamping plate 25 to move upward, firmly clamping and fixing the double-layer cotton curtain to prevent displacement during installation. The linear motor 22 is then activated, driving the fixed plate 23 and the electric telescopic rod 24 and clamping plate 25, which hold the cotton curtain, to move smoothly along the guide rod 21 in the middle of the fixing groove 28. Because the fixing slots 28 at both ends are semi-open, they do not obstruct or restrict the movement of the linear motor 22 and the fixing plate 23. The clamping assembly can be moved horizontally from one end of the shed to the other, simultaneously driving the double-layer cotton curtain to be fully laid in the area between the fixed arch frame 11 and the adjustable arch frame 13, completing the full length of the cotton curtain. At the same time, the operator can manually adjust the two sides of the double-layer cotton curtain to be completely fitted with the fixed arch frame 11 and the adjustable arch frame 13, further improving the sealing and heat preservation effect.

[0022] After the cotton curtain is laid in place, rotate the handwheel 17 in the opposite direction to drive the lead screw 16 to rotate in the opposite direction. This causes the slider 19 and the adjustable arch frame 13 to move synchronously upwards along the mounting groove 12 and guide rod 20 until the adjustable arch frame 13 is tightly fitted against the inner wall of the fixed arch frame 11, pressing the double-layer cotton curtain between them and effectively reducing the gap between the cotton curtain and the steel frame. Finally, rotate the limiting screw 18 so that one end abuts against the partition 15, locking the handwheel 17 and lead screw 16 to prevent the adjustable arch frame 13 from shifting and ensure the stability of the clamping and fixing. The outer waterproof and windproof membrane isolates rain, snow, and strong winds, protecting the inner double-layer cotton curtain from corrosion and extending its service life.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A steel-framed double-cotton-curtain insulated seedling shed structure, comprising main fixing rods (1), wherein multiple sets of main fixing rods (1) are provided, and a fixed arched frame (11) is fixedly installed at the upper end of each pair of main fixing rods (1) located at one end, characterized in that: The main fixing rod (1) is provided with an installation groove (12) above the middle part. A slider (19) is slidably engaged in the middle part of the multiple installation grooves (12). A partition (15) is fixedly installed in the middle part of one of the installation grooves (12). A screw (16) is rotatably installed in the middle part of the upper end of the partition (15) and the main fixing rod (1). A guide rod (20) is fixedly installed in the middle part of the remaining installation grooves (12). An adjustable arch frame (13) is fixedly installed at the upper end of each pair of sliders (19) located at one end. A connecting plate (14) is fixedly connected between the lower ends of one side of multiple adjustable arch frames (13). Guide rods (21) are fixedly installed on both sides of the middle part of multiple fixed arch frames (11). A fixing plate (23) is slidably engaged on the surface of the guide rod (21). A clamping plate (25) is provided below the fixing plate (23).

2. The all-steel frame double-cotton-curtain insulated seedling shed structure according to claim 1, characterized in that: The sliders (19) are slidably engaged in the middle of the corresponding mounting grooves (12), and the sliders (19) are slidably engaged or threadedly connected to the corresponding guide rods (20) and lead screws (16).

3. The all-steel frame double-cotton-curtain insulated seedling shed structure according to claim 2, characterized in that: The lower end of each main fixing rod (1) is fixedly installed with a base plate (26), and screw holes (27) are opened on both sides of the middle part of the base plate (26).

4. The all-steel frame double-cotton-curtain insulated seedling shed structure according to claim 2, characterized in that: The middle of each of the fixed arched frames (11) is provided with a fixing groove (28). The fixing grooves (28) at both ends are semi-open, and the fixing groove (28) in the middle is fully open. The guide rod (21) is located in the middle of the multiple fixing grooves (28).

5. The all-steel frame double-cotton-curtain insulated seedling shed structure according to claim 1, characterized in that: A linear motor (22) is fixedly installed on one side of the fixed plate (23). The linear motor (22) is slidably engaged with the surfaces of two guide rods (21). An electric telescopic rod (24) is fixedly installed below the middle of the fixed plate (23). A clamping plate (25) is fixedly installed at the output end of the electric telescopic rod (24). The clamping plate (25) and the adjustable arch frame (13) are in contact with each other. The adjustable arch frame (13) and the main fixed rod (1) are in contact with each other. The fixed plate (23) and the linear motor (22) are both slidably engaged with the middle of the corresponding fixed groove (28).

6. The all-steel frame double-cotton-curtain insulated seedling shed structure according to claim 1, characterized in that: A handwheel (17) is fixedly installed at one end of the lead screw (16), and a limit screw (18) is threadedly connected to one side of the handwheel (17). One end of the limit screw (18) abuts against the partition plate (15).

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