Forestry seedling raising heating device

Abstract

The utility model provides a kind of forestry seedling warming device, including long bottom plate, two groups long bottom plate parallel arrangement, two groups long bottom plate between being equipped with two groups short bottom plate, the both ends of short bottom plate are connected with two long bottom plates respectively by right-angle angle iron, roof beam is along the length direction arrangement of long bottom plate, and multiple support rods for supporting plastic film are inserted in two parallel sides of roof beam, and the end of support rod away from roof beam is connected and fixed with U type frame, U type frame is clamped on long bottom plate, and U type frame is connected with long bottom plate by fastener formed by screw and nut, the utility model has the beneficial effects as follows: let support rod install once forming, subsequent plastic film laying does not need to adjust or reburial gradually, avoid the problem such as plastic film tightness, relaxation, wrinkle caused by supporting surface irregular, reduce construction rework rate, shorten greenhouse building cycle.

Description

Technical Field

[0001] This utility model is a forestry seedling heating device, belonging to the field of forestry seedling technology. Background Technology

[0002] In the construction process of plastic greenhouses for forestry seedling cultivation, U-shaped support rods are the core structural components supporting the plastic film. Their installation quality directly affects the overall stability of the greenhouse and the effectiveness of the plastic film installation. The plastic film relies on multiple U-shaped support rods to form a regular arc-shaped support surface to ensure uniform space and good sealing performance within the greenhouse, thereby providing a stable temperature and humidity environment for seedling cultivation. Therefore, the installation of the U-shaped support rods is crucial; their ends must be buried in the ground at a predetermined depth and spacing, and fixed by the soil to form a robust support structure.

[0003] In actual construction, it is difficult to achieve a uniform standard for the burial of U-shaped support rods. Due to the lack of specialized positioning and limiting tools, construction workers mostly rely on experience to judge the burial depth, vertical angle, and lateral spacing of the support rods. Different operators have different construction habits, and even the same person cannot accurately control the burial details of each support rod, resulting in multiple U-shaped support rods exhibiting an uneven state: some support rods are buried too deep, with the top height too low; some support rods are buried too shallow, making them prone to swaying; and some support rods have inconsistent tilt angles and uneven lateral spacing, ultimately forming an uneven support surface with disordered curvature. This inconsistency in burial status will cause great trouble for the subsequent plastic film laying work. The plastic film is thin and has a certain tension, requiring a neat and symmetrical curved support surface for smooth laying. When there are deviations in the height, angle, and spacing of the support rods, the plastic film will experience localized tightness and looseness, and may even develop wrinkles and tensile stress, which not only affects the sealing of the greenhouse but may also cause damage to the plastic film due to uneven stress. To ensure the quality of the installation, the construction workers had to adjust the height and angle of each support rod. Some support rods with large deviations had to be dug up and buried again. This process not only increased the additional labor costs and construction time, but also significantly increased the rework rate and slowed down the overall construction progress of the greenhouse. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a forestry seedling heating device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a forestry seedling heating device, comprising: Two sets of long base plates are provided, and the two sets of long base plates are arranged in parallel. Two sets of short base plates are provided between the two sets of long base plates. The two ends of the short base plates are connected to the two long base plates respectively by right-angle iron. The top beam is arranged along the length of the long base plate. Multiple support rods for supporting the plastic film are inserted into the two parallel sides of the top beam. A U-shaped frame is fixed to the end of the support rod away from the top beam. The U-shaped frame is snapped into the long base plate and is connected to the long base plate by fasteners formed by screws and nuts.

[0006] Furthermore, multiple through holes are equidistantly provided on the upper part of the opposite surfaces of the two sets of long base plates, and round holes aligned with the through holes are provided on the two parallel sides of the U-shaped frame. Screws are inserted into the channels formed by the through holes and round holes, and a nut is threaded to one end of each screw.

[0007] Furthermore, an L-shaped plate is installed on one side of the U-shaped frame. A through hole aligned with the round hole is opened on the vertical part of the L-shaped plate. There is a gap between the through hole and the round hole for inserting a hacksaw blade. One end of the screw passes through the through hole, and the nut is located on the side of the through hole away from the round hole.

[0008] Furthermore, the top beam has recessed grooves on its two parallel sides, which are arranged along the length of the top beam. The end of the support rod away from the U-shaped frame is rotatably connected to two rolling bearings, which are rolled and installed in the grooves.

[0009] Furthermore, vertical plates are installed at both ends of the top beam, and the lower ends of the vertical plates are connected to the short base plate by bolts.

[0010] Furthermore, an upper connecting plate is provided on the lower side of the top beam, and the two ends of the upper connecting plate are respectively connected and fixed to two vertical plates. A lower connecting plate is provided on the lower side of the upper connecting plate, and the two ends of the lower connecting plate are respectively connected and fixed to two vertical plates.

[0011] Furthermore, multiple reinforcing bars are evenly installed between the upper connecting plate and the lower connecting plate, and the reinforcing bars are arranged vertically.

[0012] Furthermore, multiple support legs that are in contact with the ground are evenly installed on the lower surface of the lower connecting plate, and the support legs are arranged vertically.

[0013] The beneficial effects of this utility model are: The support rods are snapped onto the long base plate via U-shaped frames. The pre-set equidistant perforations on the long base plate align with the round holes in the U-shaped frames, and then they are secured with screws and nuts. This process forcibly standardizes the lateral spacing and installation height of the support rods, solving problems such as inconsistent height, tilting angles, and uneven spacing caused by traditional manual burying. It ensures that multiple support rods form a regular support surface. The standardized installation structure allows the support rods to be installed in one go, eliminating the need for individual adjustments or re-burying when laying the plastic film. This avoids problems such as the plastic film being too tight, too loose, or wrinkled due to irregular support surfaces, reducing the construction rework rate and shortening the greenhouse construction cycle. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a forestry seedling heating device according to the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the assembly of the short bottom plate and the long bottom plate in a forestry seedling heating device of this utility model; Figure 4 This is a schematic diagram of the assembly of the U-shaped frame, rolling bearing and support rod in a forestry seedling heating device according to the present invention; Figure 5 This is a perspective view of the top beam in a forestry seedling heating device according to the present invention; In the picture: 1. Long base plate; 11. Short base plate; 12. Perforated; 2. Top beam; 21. Vertical plate; 22. Upper connecting plate; 23. Lower connecting plate; 24. Stiffener; 25. Support leg; 26. Insertion groove; 3. Support rod; 31. U-shaped frame; 32. L-shaped plate; 33. Round hole; 34. Through hole; 35. Rolling bearing; 4. Screw; 41. Nut. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Please see Figure 1This utility model provides a technical solution: a forestry seedling heating device, including a long base plate 1, two sets of long base plates 1 arranged in parallel, and two sets of short base plates 11 between the two sets of long base plates 1. The two ends of the short base plates 11 are connected to the two long base plates 1 respectively by right-angle iron; a top beam 2 is arranged along the length of the long base plate 1, and vertical plates 21 are installed at both ends of the top beam 2. The lower ends of the vertical plates 21 are connected to the short base plates 11 by bolts; an upper connecting plate 22 is provided on the lower side of the top beam 2, and the two ends of the upper connecting plate 22 are respectively connected and fixed to the two vertical plates 21. A lower connecting plate 23 is provided on the lower side of the upper connecting plate 22, and the two ends of the lower connecting plate 23 are respectively connected and fixed to the two vertical plates 21; multiple vertically arranged reinforcing bars 24 are evenly installed between the upper connecting plate 22 and the lower connecting plate 23, and multiple vertically arranged support legs 25 in contact with the ground are evenly installed on the lower surface of the lower connecting plate 23. The long base plate 1 and the short base plate 11 are spliced ​​together by right-angle iron to form a stable bottom frame. The top beam 2 is connected to the bottom frame at both ends by vertical plates 21. The upper connecting plate 22, the lower connecting plate 23, the support leg 25 and the stiffener 24 further reinforce the structure. The overall frame is subjected to balanced force and can withstand the impact of external forces such as wind and is not easily deformed.

[0017] See Figure 1 , Figure 4 and Figure 5 Multiple support rods 3 for supporting the plastic film are inserted into both parallel sides of the top beam 2; recesses 26 are formed on both parallel sides of the top beam 2, and the insertion grooves 26 are arranged along the length of the top beam 2; two rolling bearings 35 are rotatably connected to the end of the support rod 3 away from the U-shaped frame 31, and the rolling bearings 35 are rolled and installed in the insertion grooves 26. When the support rod 3 is moved, the support rod 3 drives the rolling bearings 35 to roll in the insertion grooves 26, reducing the movement resistance between the support rod 3 and the top beam 2.

[0018] See Figures 1-5A U-shaped frame 31 is fixed to the end of the support rod 3 away from the top beam 2. The U-shaped frame 31 is snapped onto the long base plate 1. The U-shaped frame 31 is connected to the long base plate 1 by fasteners formed by screws 4 and nuts 41. Multiple through holes 12 are equally spaced at the upper part of the opposite surfaces of the two sets of long base plates 1. Round holes 33 aligned with the through holes 12 are opened on the two parallel sides of the U-shaped frame 31. Screws 4 are inserted into the channel formed by the through holes 12 and the round holes 33. A nut 41 is threaded to one end of the screw 4. The support rod 3 is snapped onto the long base plate 1 via a U-shaped frame 31. The pre-set equidistant perforations 12 on the long base plate 1 are aligned with the circular holes 33 of the U-shaped frame 31, and then fixed with screws 4 and nuts 41. This forcibly standardizes the lateral spacing and installation height of the support rods 3, solving problems such as uneven height, tilting angle, and uneven spacing of the support rods 3 caused by traditional manual burying, ensuring that multiple support rods 3 form a regular support surface. The standardized installation structure allows the support rods 3 to be installed in one go, eliminating the need for individual adjustments or re-burying when laying the plastic film, and avoiding problems caused by an irregular support surface. This design eliminates problems such as tightness, looseness, and wrinkles in the plastic film, reducing rework rates and shortening the greenhouse construction cycle. All support rods 3 maintain consistent height, angle, and spacing, forming a smooth and regular arc-shaped support surface. The plastic film can fit tightly against the support surface without wrinkles or stress dead angles, effectively improving the greenhouse's sealing performance, reducing heat loss and moisture leakage, and providing a stable temperature and humidity environment for seedling cultivation. There is no need to dig into the ground to bury the support rods 3; installation can be completed simply by attaching the U-shaped frame 31 to the long base plate 1 and tightening the screws 4. The operation is simple and easy to understand.

[0019] See Figures 1-4 An L-shaped plate 32 is installed on one side of the U-shaped frame 31. A through hole 34, aligned with the round hole 33, is opened on the vertical part of the L-shaped plate 32. A gap exists between the through hole 34 and the round hole 33 for inserting a hacksaw blade. One end of the screw 4 passes through the through hole 34, and the nut 41 is located on the side of the through hole 34 away from the round hole 33. When the screw 4 and nut 41 become inseparable due to moisture and corrosion, the screw 4 can be cut off using the gap between the L-shaped plate 32 and the U-shaped frame 31, facilitating the later disassembly of the branch rod 3 and the long base plate 1.

[0020] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A forestry seedling heating device, characterized in that, include: Two sets of long base plates (1) are provided, and the two sets of long base plates (1) are arranged in parallel. Two sets of short base plates (11) are provided between the two sets of long base plates (1). The two ends of the short base plates (11) are connected to the two long base plates (1) respectively by right angle iron. The top beam (2) is arranged along the length of the long base plate (1). Multiple support rods (3) for supporting the plastic film are inserted into the two parallel sides of the top beam (2). A U-shaped frame (31) is fixed to the end of the support rod (3) away from the top beam (2). The U-shaped frame (31) is snapped onto the long base plate (1). The U-shaped frame (31) is connected to the long base plate (1) by fasteners formed by screws (4) and nuts (41).

2. The forestry seedling heating device according to claim 1, characterized in that: Multiple through holes (12) are equally spaced on the upper part of the opposite surfaces of the two sets of long base plates (1). The two parallel sides of the U-shaped frame (31) are provided with round holes (33) that are aligned with the through holes (12). Screws (4) are inserted in the channel formed by the through holes (12) and the round holes (33). A nut (41) is threaded to one end of the screw (4).

3. The forestry seedling heating device according to claim 2, characterized in that: An L-shaped plate (32) is installed on one side of the U-shaped frame (31). A through hole (34) aligned with the round hole (33) is opened on the vertical part of the L-shaped plate (32). There is a gap between the through hole (34) and the round hole (33) for inserting a hacksaw blade. One end of the screw (4) passes through the through hole (34), and the nut (41) is set on the side of the through hole (34) away from the round hole (33).

4. The forestry seedling heating device according to claim 1, characterized in that: The top beam (2) has two parallel sides that are recessed to form insertion grooves (26). The insertion grooves (26) are arranged along the length of the top beam (2). The end of the support rod (3) away from the U-shaped frame (31) is rotatably connected to two rolling bearings (35). The rolling bearings (35) are rolled in the insertion grooves (26).

5. A forestry seedling heating device according to claim 4, characterized in that: Both ends of the top beam (2) are equipped with vertical plates (21), and the lower end of the vertical plates (21) is connected to the short bottom plate (11) by bolts.

6. A forestry seedling heating device according to claim 5, characterized in that: The top beam (2) is provided with an upper connecting plate (22) on the lower side. The two ends of the upper connecting plate (22) are respectively connected and fixed to two vertical plates (21). The lower side of the upper connecting plate (22) is provided with a lower connecting plate (23). The two ends of the lower connecting plate (23) are respectively connected and fixed to two vertical plates (21).

7. A forestry seedling heating device according to claim 6, characterized in that: Multiple reinforcing bars (24) are evenly installed between the upper connecting plate (22) and the lower connecting plate (23), and the reinforcing bars (24) are arranged vertically.

8. A forestry seedling heating device according to claim 7, characterized in that: The lower connecting plate (23) has a plurality of legs (25) that are in contact with the ground evenly installed on its lower surface, and the legs (25) are arranged vertically.

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