Frame type earth wall of sunlight greenhouse

Abstract

A sunlight greenhouse frame type cob wall relates to the technical field of greenhouses and comprises a supporting frame, two rotating frames are hinged to the top of the supporting frame, side supporting plates are fixedly connected to the opposite ends of the supporting frame, fixing plates are fixedly connected to the opposite ends of the rotating frames, and a plurality of rotating cylinders are arranged at the top of the supporting frame in a rotating mode. A plurality of connecting columns are hinged to the outer wall of the rotating frame, a limiting circular plate in frictional contact with the inner wall of the rotating cylinder is arranged in the rotating cylinder, a connecting rod is fixedly connected to the end of the limiting circular plate, one end of the connecting rod penetrates through the rotating cylinder and is in threaded connection with the connecting columns, and the connecting rod is in frictional contact with the rotating cylinder; compression springs are arranged in the rotating cylinders, one ends of the compression springs abut against the limiting circular plates, the other ends of the compression springs are limited in the rotating cylinders, and a humidifying assembly is arranged between the two rotating frames. The problems that an existing frame type cob wall is prone to cracking, and consequently the sealing performance and the heat preservation effect are poor are solved.

Description

Technical Field

[0001] The invention relates to the technical field of greenhouses, in particular to a frame-type earth wall of a sunlight greenhouse. Background Art

[0002] The framed earth wall solar greenhouse combines traditional earth walls with modern steel frame structures. It primarily consists of a steel frame and rammed earth. The steel frame is typically constructed from welded metal sheets, forming a stable support framework that ensures the overall strength and snow resistance of the earth wall. A steel mesh is laid inside the frame to enhance structural stability and covered with geotextile to prevent soil loss. The wall is then filled with soil and gravel to compact the structure. This structure retains the heat-retention, energy-saving, and environmentally friendly benefits of traditional earth walls while utilizing the steel frame to improve the greenhouse's durability and space utilization, making it more suitable for winter agricultural production in cold northern regions.

[0003] The existing solar greenhouse frame earth wall has gradually exposed its shortcomings during use, mainly in the following aspects: First, the thermal expansion coefficients of metal and rammed earth are significantly different. The expansion coefficient of metal is usually 2-4 times that of soil. Therefore, under the same temperature rise conditions, the expansion and contraction of metal is much greater than that of soil. When the temperature rises during the day, the steel frame expands rapidly due to the heat, pushing the earth wall. However, due to the poor thermal conductivity of the earth wall, the temperature rise is delayed and the expansion is small. Therefore, the junction is subjected to extrusion stress. When the temperature drops at night, the steel frame shrinks rapidly, and the earth wall still maintains a high temperature due to poor thermal conductivity and shrinks delayed, resulting in gaps at the junction and the surrounding soil filling the gaps. Under the action of daily temperature cycles, the repeated squeezing between metal and soil causes local breakage of the soil, cracks that gradually expand, and ultimately destroys the integrity and sealing of the structure.

[0004] Second, rammed earth walls will produce shrinkage stress due to water evaporation under the action of dry-wet cycles. When the shrinkage stress exceeds the tensile strength of the soil, cracks will appear. These cracks not only destroy the structural integrity of the wall, forming through-holes that lead to a decrease in bearing capacity, but also significantly reduce its thermal insulation performance (cracks become shortcuts for heat conduction), greatly reducing the heat storage and insulation function originally achieved by the dense soil structure, and ultimately seriously affecting the durability and thermal insulation effect of the wall.

[0005] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Invention

[0006] In response to the shortcomings of the prior art, the present invention aims to provide a solar greenhouse frame-type earth wall. The frame-type earth wall adopts a buffer design, which can automatically adjust the metal frame when the temperature difference between day and night changes. When the temperature rises during the day, the extrusion force generated by the metal frame is absorbed by the buffer device. When the temperature drops at night, the buffer device releases the stored pressure and pushes the metal frame back to its original position. Therefore, the metal frame always maintains a close fit with the rammed earth wall, effectively preventing the soil from cracking and ensuring the sealing performance. The frame-type earth wall can effectively adjust the humidity balance inside the rammed earth, avoid the wall from drying out and cracking due to water evaporation, and ensure the stable heat storage and insulation effect of the wall.

[0007] In order to solve the above problems, the present invention provides the following technical solutions: A frame-type earth wall of a solar greenhouse includes a support frame, wherein two rotating frames are hingedly connected to the top of the support frame, and the opposite ends of the support frame are fixedly connected to side support plates, and the opposite ends of the rotating frame are fixedly connected to fixed plates. A plurality of rotating cylinders with rotatable arrangements are provided on the top of the support frame, and a plurality of connecting columns are hingedly connected to the outer wall of the rotating frame. A limiting circular plate in frictional contact with the inner wall of the rotating cylinder is provided in the rotating cylinder, and a connecting rod is fixed to the end of the limiting circular plate, one end of the connecting rod passes through the rotating cylinder and is threadedly connected to the connecting column, and the connecting rod is in frictional contact with the rotating cylinder, and the diameter of the connecting rod is smaller than the diameter of the limiting circular plate. A compression spring is provided in the rotating cylinder, and one end of the compression spring is abutted against the limiting circular plate, and the other end of the compression spring is restricted to the inside of the rotating cylinder. A humidifying assembly is provided between the two rotating frames.

[0008] As an optimized solution, the humidifying assembly includes several horizontally arranged drain pipes, the end of the side support plate is provided with several penetrating mounting holes, both ends of the drain pipe are provided with fixed threaded sections, the fixed threaded sections at both ends of the drain pipe respectively pass through the mounting holes on the two side support plates and are both provided with stop nuts threadedly connected thereto, one end of the drain pipe is sealed, and the outer wall of the drain pipe is provided with several penetrating through holes.

[0009] As an optimized solution, several mounting grooves are provided at the end of the fixed plate, and rollers are provided in the mounting grooves. Both ends of the rollers are rotatably connected to the fixed plate, and part of the roller is always located outside the mounting groove and rolls and rubs against the side support plate.

[0010] As an optimized solution, two penetrating fixing tubes are fixedly provided on the outer wall of the rotating cylinder, one end of the fixing tube is flush with the inner wall of the rotating cylinder, and fixed mounting plates are provided on both sides of the rotating cylinder, one of the mounting plates is provided with a limiting bolt at the end, and the threaded end of the limiting bolt passes through the two mounting plates and is fitted with a limiting nut threadedly connected thereto, and the limiting bolt is located in the fixing tube and is in frictional contact with the fixing tube.

[0011] As an optimized solution, a sliding circular plate is provided in the rotating cylinder and is slidably connected to the inner wall thereof. The compression spring abuts against the sliding circular plate, and the sliding circular plate is restricted in the rotating cylinder by a limiting bolt.

[0012] As an optimized solution, the mounting plate is fixedly connected to the supporting frame.

[0013] As an optimized solution, one end of the connecting rod is provided with a mounting thread section, the mounting thread section extends into the connecting column and is threadedly connected to the connecting column, and the outer wall of the connecting rod is provided with a bolt head structure.

[0014] As an optimized solution, the support frame and the rotating frame are both made of welded metal plates.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. When constructing a frame-type earth wall, first lay steel mesh and geotextile to seal the hollow areas of the support frame, rotating frame and other areas, then place the support frame inside the poured concrete foundation and fix it, then fill the entire frame with soil and tamp it, then bury the support frame in the concrete foundation. After the soil is completely filled, the rotating frame contacts the compacted soil. At this time, the sliding circular plate contacts the limit bolt, and the compression spring is in a compressed state. When the temperature rises during the day, the rotating frame expands rapidly due to the heat, and an extrusion force is generated at the junction of the rotating frame and the rammed earth, which pushes the rotating frame to rotate outward. The compression spring is further compressed, and the extrusion force generated by the rotating frame is absorbed by the compression spring. When the temperature drops at night, the rotating frame contracts rapidly, and the compression spring releases the stored pressure into The rotating frame is pushed back to its original position, so when the temperature changes, the rotating frame always maintains contact with the upper layer of rammed earth. The upper layer of the frame-type earth wall adopts a buffer design, which can automatically adjust the rotating frame when the temperature difference between day and night changes. When the temperature rises during the day, the extrusion force generated by the rotating frame is absorbed by the compression spring. When the temperature drops at night, the compression spring releases the stored pressure to push the rotating frame back to its original position. Therefore, the rotating frame always maintains a close fit with the upper layer of rammed earth, effectively preventing the upper layer of rammed earth from cracking and ensuring the sealing of the upper layer of the earth wall. The lower layer of rammed earth and the supporting frame are buried in the concrete foundation at the same time. The effect of the expansion and contraction of the supporting frame on the lower layer of rammed earth does not affect the upper layer of rammed earth, nor does it affect the sealing of the entire earth wall. Therefore, the frame-type earth wall has excellent sealing performance. 2. The fixed plate uses rollers to contact the side support plates. The friction mode between the fixed plate and the side support plates is transformed from sliding friction to rolling friction, which greatly reduces the friction resistance between the fixed plate and the side support plates and ensures that the rotating frame can rotate normally. 3. When the humidity inside the rammed earth is low, connect the drainage pipe to an external water source. Water is discharged through the through holes on the drainage pipe and moistens the rammed earth, thereby keeping the humidity inside the rammed earth within a normal range. This frame-type earth wall can effectively regulate the humidity balance inside the rammed earth, avoid cracking of the wall due to water evaporation, and ensure the stable heat storage and thermal insulation effect of the wall; 4. Both ends of the drain pipe can also play the role of pulling the side support plate, further improving the pressure resistance of the side support plate and improving its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the support frame of the present invention; Figure 3 It is a structural schematic diagram of the rotating frame of the present invention; Figure 4 This is a schematic structural diagram of the rotating cylinder and the connecting column of the present invention; Figure 5 This is a schematic diagram of the internal structure of the rotating cylinder and the connecting column of the present invention; Figure 6 This is a schematic structural diagram of the humidification component of the present invention; Figure 7 Schematic diagram of the structure of the drainage pipe of the present invention; Figure 8 It is a structural diagram of the rollers of the present invention.

[0018] In the figure: 1-support frame; 2-fixed plate; 3-side support plate; 4-rotating frame; 5-mounting plate; 6-humidification assembly; 7-connecting column; 8-connecting rod; 9-rotating cylinder; 10-mounting threaded section; 11-limiting circular plate; 12-sliding circular plate; 13-limiting nut; 14-fixing pipe; 15-limiting bolt; 16-compression spring; 17-bolt head structure; 18-roller; 19-mounting groove; 20-drain pipe; 21-mounting hole; 22-fixing threaded section; 23-stop nut; 24-through hole. DETAILED DESCRIPTION

[0019] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0020] like Figures 1 to 8 As shown, a frame-type earth wall of a solar greenhouse includes a support frame 1, and two rotating frames 4 are hinged on the top of the support frame 1. The opposite ends of the support frame 1 are fixed with side support plates 3, and the opposite ends of the rotating frames 4 are fixed with fixed plates 2. A plurality of rotating cylinders 9 with rotating arrangements are provided on the top of the support frame 1, and a plurality of connecting columns 7 are hinged on the outer wall of the rotating frame 4. A limiting circular plate 11 is provided in the rotating cylinder 9 and is in frictional contact with the inner wall thereof. A connecting rod 8 is fixed to the end of the limiting circular plate 11, and one end of the connecting rod 8 passes through the rotating cylinder 9 and is threadedly connected to the connecting column 7. The connecting rod 8 is in frictional contact with the rotating cylinder 9, and the diameter of the connecting rod 8 is smaller than the diameter of the limiting circular plate 11. A compression spring 16 is provided in the rotating cylinder 9, and one end of the compression spring 16 is abutted against the limiting circular plate 11, and the other end of the compression spring 16 is restricted inside the rotating cylinder 9. A humidifying assembly 6 is provided between the two rotating frames 4.

[0021] The humidifying assembly 6 includes several horizontally arranged drain pipes 20, and several penetrating mounting holes 21 are provided at the end of the side support plate 3. Both ends of the drain pipe 20 are provided with fixed threaded sections 22. The fixed threaded sections 22 at both ends of the drain pipe 20 respectively pass through the mounting holes 21 on the two side support plates 3 and are both fitted with stop nuts 23 threadedly connected thereto. One end of the drain pipe 20 is sealed, and the outer wall of the drain pipe 20 is provided with several penetrating through holes 24.

[0022] Several mounting grooves 19 are provided at the end of the fixed plate 2, and rollers 18 are provided in the mounting grooves 19. Both ends of the rollers 18 are rotatably connected to the fixed plate 2. Part of the roller 18 is always located outside the mounting grooves 19 and rolls and rubs against the side support plate 3.

[0023] Two fixing tubes 14 are fixedly provided on the outer wall of the rotating cylinder 9, and one end of the fixing tube 14 is flush with the inner wall of the rotating cylinder 9. Fixed mounting plates 5 are provided on both sides of the rotating cylinder 9, and a limiting bolt 15 is provided at the end of one of the mounting plates 5. The threaded end of the limiting bolt 15 passes through the two mounting plates 5 and is fitted with a limiting nut 13 threadedly connected thereto. The limiting bolt 15 is located in the fixing tube 14 and is in friction contact with the fixing tube 14.

[0024] A sliding circular plate 12 is provided in the rotating cylinder 9 and is slidably connected to the inner wall thereof. A compression spring 16 abuts against the sliding circular plate 12 , and the sliding circular plate 12 is restricted in the rotating cylinder 9 by a limiting bolt 15 .

[0025] The mounting plate 5 is fixedly connected to the supporting frame 1 .

[0026] One end of the connecting rod 8 is provided with a mounting thread section 10 , which extends into the connecting column 7 and is threadedly connected to the connecting column 7 . The outer wall of the connecting rod 8 is provided with a bolt head structure 17 .

[0027] The supporting frame 1 and the rotating frame 4 are both made of welded metal plates.

[0028] The working principle of this device is: When constructing a frame-type earth wall, first lay steel mesh and geotextile to seal the hollow areas of the support frame 1, rotating frame 4 and other areas, then place the support frame 1 inside the poured concrete foundation and fix it, then fill the entire frame with soil and tamp it, then bury the support frame 1 in the concrete foundation. After the soil is completely filled, the rotating frame 4 contacts the compacted soil. At this time, the sliding circular plate 12 contacts the limit bolt 15, and the compression spring 16 is in a compressed state. When the temperature rises during the day, the rotating frame 4 expands rapidly due to the heat, and an extrusion force is generated at the junction of the rotating frame 4 and the rammed earth, which pushes the rotating frame 4 to rotate outward, and the compression spring 16 is further compressed. The extrusion force generated by the rotating frame 4 is absorbed by the compression spring 16. When the temperature drops at night, the rotating frame 4 contracts rapidly, and the compression spring 16 will store the compressed The force is released, thereby pushing the rotating frame 4 to reset. Therefore, when the temperature changes, the rotating frame 4 always maintains contact with the upper rammed earth. The upper layer of the frame-type earth wall adopts a buffer design, which can automatically adjust the rotating frame 4 when the temperature difference between day and night changes. When the temperature rises during the day, the extrusion force generated by the rotating frame 4 is absorbed by the compression spring 16. When the temperature drops at night, the compression spring 16 releases the stored pressure and pushes the rotating frame 4 back to its original position. Therefore, the rotating frame 4 always maintains a close fit with the upper rammed earth, effectively preventing the upper rammed earth from cracking and ensuring the sealing of the upper layer of the earth wall. The lower rammed earth and the supporting frame 1 are buried in the concrete foundation at the same time. The effect of the expansion and contraction of the supporting frame 1 on the lower rammed earth does not affect the upper rammed earth, nor does it affect the sealing of the entire earth wall. Therefore, the frame-type earth wall has excellent sealing performance. The fixed plate 2 uses rollers 18 to contact the side support plates 3. The friction mode between the fixed plate 2 and the side support plates 3 is transformed from sliding friction to rolling friction, which greatly reduces the friction resistance between the fixed plate 2 and the side support plates 3 and ensures that the rotating frame 4 can rotate normally. When the humidity inside the rammed earth is low, the drainage pipe 20 is connected to an external water source. Water is discharged through the through holes 24 on the drainage pipe 20 and moistens the rammed earth, thereby keeping the humidity inside the rammed earth within a normal range. This frame-type earth wall can effectively regulate the humidity balance inside the rammed earth, avoid cracking of the wall due to water evaporation, and ensure the stable heat storage and thermal insulation effect of the wall. The two ends of the drain pipe 20 can also play the effect of pulling the side support plate 3, further improving the pressure resistance of the side support plate 3 and improving practicality.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A solar greenhouse frame type earth wall, characterized by: The invention comprises a support frame (1), wherein the top of the support frame (1) is hinged with two rotating frames (4), the opposite ends of the support frame (1) are fixedly connected with side support plates (3), the opposite ends of the rotating frames (4) are fixedly connected with fixed plates (2), the top of the support frame (1) is provided with a plurality of rotating cylinders (9) arranged for rotation, the upper outer wall of the rotating frame (4) is hinged with a plurality of connecting columns (7), the rotating cylinder (9) is provided with a limiting circular plate (11) in frictional contact with the inner wall thereof, and the end of the limiting circular plate (11) is fixedly connected with a A connecting rod (8), one end of which passes through the rotating cylinder (9) and is threadedly connected to the connecting column (7), the connecting rod (8) is in frictional contact with the rotating cylinder (9), the diameter of the connecting rod (8) is smaller than the diameter of the limiting circular plate (11), a compression spring (16) is provided in the rotating cylinder (9), one end of the compression spring (16) is in contact with the limiting circular plate (11), and the other end of the compression spring (16) is restricted inside the rotating cylinder (9), and a humidifying component (6) is provided between the two rotating frames (4).

2. The frame-type earth wall of a solar greenhouse according to claim 1, characterized in that: The humidifying assembly (6) comprises a plurality of horizontally arranged drain pipes (20), the end of the side support plate (3) is provided with a plurality of through-set mounting holes (21), both ends of the drain pipe (20) are provided with fixed threaded sections (22), the fixed threaded sections (22) at both ends of the drain pipe (20) respectively pass through the mounting holes (21) on the two side support plates (3) and are both provided with stop nuts (23) threadedly connected thereto, one end of the drain pipe (20) is sealed, and the outer wall of the drain pipe (20) is provided with a plurality of through-set through holes (24).

3. The frame-type earth wall of a solar greenhouse according to claim 1, characterized in that: The end of the fixed plate (2) is provided with a plurality of mounting grooves (19), and rollers (18) are provided in the mounting grooves (19). Both ends of the rollers (18) are rotatably connected to the fixed plate (2), and a portion of the rollers (18) is always located outside the mounting grooves (19) and is in rolling friction with the side support plates (3).

4. The frame-type earth wall of a solar greenhouse according to claim 1, characterized in that: Two fixed tubes (14) are fixedly provided on the outer wall of the rotating cylinder (9), one end of each fixed tube (14) is flush with the inner wall of the rotating cylinder (9), and fixed mounting plates (5) are provided on both sides of the rotating cylinder (9), wherein a limiting bolt (15) is provided at the end of one of the mounting plates (5), and a threaded end of each limiting bolt (15) passes through the two mounting plates (5) and is fitted with a limiting nut (13) threadedly connected thereto, and the limiting bolt (15) is located in the fixing tube (14) and is in frictional contact with the fixing tube (14).

5. The frame-type earth wall of a solar greenhouse according to claim 4, characterized in that: A sliding circular plate (12) is provided in the rotating cylinder (9) and is slidably connected to the inner wall thereof. The compression spring (16) abuts against the sliding circular plate (12). The sliding circular plate (12) is restricted in the rotating cylinder (9) by a limiting bolt (15).

6. The frame-type earth wall of a solar greenhouse according to claim 4, characterized in that: The mounting plate (5) is fixedly connected to the supporting frame (1).

7. The frame-type earth wall of a solar greenhouse according to claim 1, characterized in that: One end of the connecting rod (8) is provided with a mounting thread section (10), the mounting thread section (10) extends into the connecting column (7) and is threadedly connected to the connecting column (7), and the outer wall of the connecting rod (8) is provided with a bolt head structure (17).

8. The frame-type earth wall of a solar greenhouse according to claim 1, characterized in that: The support frame (1) and the rotating frame (4) are both made by welding metal plates.

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