Double-arch double-film greenhouse skylight opening and closing mechanism

Abstract

The utility model relates to the technical field of municipal engineering, and discloses a double-arch double-film greenhouse skylight opening and closing mechanism which comprises a supporting column, a double-arch inner frame is fixedly connected to the middle end of the supporting column, inner frame longitudinal rods are fixedly connected to the front side and the rear side of the inner wall of the double-arch inner frame, and inner frame transverse rods are fixedly connected to the left side and the right side of the inner wall of the double-arch inner frame. A double-arch outer frame is fixedly connected to the top end of the supporting column, outer frame transverse rods are fixedly connected to the front side and the rear side of the inner wall of the double-arch outer frame, outer frame longitudinal rods are fixedly connected to the left side and the right side of the inner wall of the double-arch outer frame, and a mounting base is fixedly connected to the middle end of the bottom of the double-arch outer frame. According to the utility model, the left and right racks drive the window body to move, the stress is uniformly dispersed, and in severe weather such as strong wind, the wind power can be better borne, the structural deformation is avoided, the service life is prolonged, and the maintenance cost and the safety risk are reduced; meanwhile, the detachable filter plate can filter air, a clean environment is created, and diseases and pests are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to municipal engineering technical field especially relates to a double-arch double-membrane greenhouse skylight opening and closing mechanism. BACKGROUND

[0002] The double-arch double-membrane greenhouse is an agricultural facility with double-layer arched structure and double-layer membrane covering, which is generally composed of support columns, double-arch inner frames, double-arch outer frames and the like, and an air heat insulation layer is formed between the two layers of membranes, which can achieve good heat preservation and insulation effects, is conducive to creating a suitable growth environment for crops, improving the temperature in the greenhouse and reducing heat loss, and can also enhance the wind resistance and snow resistance to a certain extent.

[0003] However, the existing double-arch double-membrane greenhouse skylight still has the following technical problems in actual use:

[0004] Most of the existing skylights adopt a relatively simple hinge or bolt connection mode, and the connection point is single and has limited strength. For example, only the ordinary metal hinge is used to connect the window body and the frame, and under the action of external force such as strong wind, the hinge is prone to loosening, deformation or even breakage, resulting in imbalance of the skylight structure. At the same time, many existing double-arch double-membrane greenhouse skylights only pay attention to the ventilation and lighting functions, and cannot filter the air entering the greenhouse, which leads to the fact that dust, sundries and the like are easy to enter the greenhouse, affecting the growth of crops and possibly increasing the probability of disease and pest breeding.

[0005] To this end, the present application proposes a double-arch double-membrane greenhouse skylight opening and closing mechanism for the technical problem. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the problems of insufficient structural stability and lack of ventilation and filtration functions in the prior art, and provides a double-arch double-membrane greenhouse skylight opening and closing mechanism, which can drive the window body to move by the left and right racks, uniformly disperse the stress, better withstand the wind force and avoid structural deformation under adverse weather conditions such as strong wind, prolong the service life, and reduce the maintenance cost and safety risk. At the same time, the detachable filter plate can filter the air, create a clean environment and reduce the harm of diseases and pests.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A double-arch double-film greenhouse skylight opening and closing mechanism includes a support column, a double-arch inner frame fixedly connected to the middle of the support column, inner frame longitudinal bars fixedly connected to the front and rear sides of the inner wall of the double-arch inner frame, inner frame horizontal bars fixedly connected to the left and right sides of the inner wall of the double-arch inner frame, a double-arch outer frame fixedly connected to the top of the support column, outer frame horizontal bars fixedly connected to the front and rear sides of the inner wall of the double-arch outer frame, outer frame longitudinal bars fixedly connected to the left and right sides of the inner wall of the double-arch outer frame, and a mounting base fixedly connected to the middle of the bottom of the double-arch outer frame, with openings on the left and right sides of the inner wall of the mounting base. The mounting base has a sliding groove, and through grooves are provided on both the left and right sides of the outer wall of the mounting base. A motor is fixedly connected to the middle of the bottom side of the inner wall of the mounting base. A gear is fixedly connected to the top of the motor. A rack is meshed with the left and right sides of the gear. The rack is slidably connected to the inner wall of the sliding groove. A connecting frame is fixedly connected to the outer side of the rack. The connecting frame passes through the through groove and is slidably connected to it. An outer frame window is fixedly connected to the top of the connecting frame. An inner frame window is fixedly connected to the bottom of the connecting frame. The inner frame window is attached to the top of the inner frame longitudinal bar.

[0009] Furthermore, a second sliding groove is provided at the middle end of the inner frame longitudinal rod on the side close to it, and a second through groove is provided on the front side of the inner frame cross rod. A filter plate is slidably connected to the inner wall of the second sliding groove.

[0010] Furthermore, a connecting block is fixedly connected to the front side of the filter plate, and a screw hole is opened at the bottom front end of the inner frame window. The connecting block is connected to the screw hole through a fixing bolt, and the fixing bolt is threadedly connected to the screw hole.

[0011] Furthermore, the filter plate passes through the second through groove and is slidably connected to its inner wall.

[0012] Furthermore, the outer frame window and the inner frame window are both fixedly connected to the left and right ends of the bottom of the outer frame window and the inner frame window, respectively. The outer frame crossbar and the inner frame crossbar are both provided with a limit groove on the opposite side. The limit block is slidably connected to the inner wall of the limit groove.

[0013] Furthermore, the connecting bracket at the left end is fixedly connected to the front end of the outer wall of the rack on the left side, and the connecting bracket at the right end is fixedly connected to the rear end of the outer wall of the rack on the right side.

[0014] Furthermore, the bottom of the outer frame window is aligned with the top of the outer frame crossbar.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the left and right racks drive the window body to move during opening and closing, so that the structural force is evenly distributed. In severe weather such as strong winds, compared with some existing opening and closing mechanisms, it can better withstand wind force, effectively avoid structural deformation caused by concentrated force, ensure the stability of the overall greenhouse structure, extend service life, and reduce maintenance costs and safety risks caused by structural damage.

[0017] 2. In this utility model, the detachable filter plate can filter the air entering the greenhouse while the window is open for ventilation, preventing dust, debris, and other contaminants from entering and affecting crop growth. This is something many existing mechanisms lack. Some existing skylight opening and closing mechanisms only focus on ventilation and lighting, neglecting the purification of the incoming air. This design effectively fills this gap, creating a cleaner growing environment for crops and reducing the chances of pests and diseases. Attached Figure Description

[0018] Figure 1 This is a perspective view of a double-arched, double-membrane greenhouse skylight opening and closing mechanism proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the mounting base in the skylight opening and closing mechanism of a double-arch double-membrane greenhouse proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the limiting block and limiting groove in the skylight opening and closing mechanism of a double-arch double-membrane greenhouse proposed in this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the filter plate in the skylight opening and closing mechanism of a double-arched double-membrane greenhouse proposed in this utility model.

[0023] Legend:

[0024] 1. Support column; 2. Double-arched outer frame; 3. Outer frame crossbar; 4. Outer frame longitudinal bar; 5. Mounting base; 6. Motor; 7. Gear; 8. Slide groove one; 9. Through groove one; 10. Rack; 11. Connecting frame; 12. Outer frame window; 13. Limiting block; 14. Inner frame window; 15. Double-arched inner frame; 16. Inner frame longitudinal bar; 17. Inner frame crossbar; 18. Limiting groove; 19. Slide groove two; 20. Through groove two; 21. Filter plate; 22. Connecting block; 23. Screw hole; 24. Fixing bolt. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1 , Figure 2 andFigure 5 This utility model provides an embodiment of a double-arched double-film greenhouse skylight opening and closing mechanism, comprising a support column 1, a double-arched inner frame 15 fixedly connected to the middle of the support column 1, inner frame longitudinal bars 16 fixedly connected to the front and rear sides of the inner wall of the double-arched inner frame 15, inner frame horizontal bars 17 fixedly connected to the left and right sides of the inner wall of the double-arched inner frame 15, a double-arched outer frame 2 fixedly connected to the top of the support column 1, outer frame horizontal bars 3 fixedly connected to the front and rear sides of the inner wall of the double-arched outer frame 2, outer frame longitudinal bars 4 fixedly connected to the left and right sides of the inner wall of the double-arched outer frame 2, and a mounting base 5 fixedly connected to the middle of the bottom of the double-arched outer frame 2. Each side is provided with a sliding groove 8, and the left and right sides of the outer wall of the mounting base 5 are provided with through grooves 9. The middle of the bottom side of the inner wall of the mounting base 5 is fixedly connected to a motor 6, and the top of the motor 6 is fixedly connected to a gear 7. The left and right sides of the gear 7 are meshed with racks 10. The racks 10 are slidably connected to the inner wall of the sliding groove 8. The outer side of the racks 10 is fixedly connected to a connecting frame 11. The connecting frame 11 passes through the through groove 9 and is slidably connected to it. The top of the connecting frame 11 is fixedly connected to an outer frame window 12, and the bottom of the connecting frame 11 is fixedly connected to an inner frame window 14. The inner frame window 14 is attached to the top of the inner frame longitudinal bar 16.

[0027] Specifically, when the motor 6 starts running, the gear 7 fixedly connected to the top of the motor 6 begins to rotate. Since the left and right sides of the gear 7 mesh with the rack 10 respectively, during the rotation of the gear 7, its teeth interact with the teeth of the racks 10 on the left and right sides. For the left rack 10, because it meshes with the left side of the gear 7, the rotation direction of the gear 7 determines that the left rack 10 will be subjected to a backward thrust. However, the rack 10 is restricted to sliding within the sliding grooves 8 opened on the left and right sides of the inner wall of the mounting base 5, and can only slide along the sliding grooves. In this structure, when motor 6 drives gear 7 to rotate, the left rack 10 slides backward along the slide groove 8. Since the left connecting frame 11 is fixedly connected to the front end of the outer wall of the left rack 10, as the left rack 10 slides backward, the connecting frame 11 is also driven to move backward. Because the top of the connecting frame 11 is fixedly connected to the outer frame window 12 and the bottom is fixedly connected to the inner frame window 14, the outer frame window 12 and the inner frame window 14 will move backward together with the connecting frame 11, realizing the left end... When the window opens backward, similarly, when the gear 7 rotates, the teeth meshing with the right side of the rack 10 will be pushed forward, causing the rack 10 to slide forward along the slide groove 8. The right end connecting frame 11 is fixedly connected to the rear end of the outer wall of the right end rack 10. When the right end rack 10 slides forward, it drives the connecting frame 11 to move to the left, thereby causing the outer frame window 12 at the top and the inner frame window 14 at the bottom of the connecting frame 11 to move forward synchronously, realizing the opening of the right end window forward. In this process, through the precise control of the rotation direction and speed of the gear 7 by the motor 6, the opening degree of the left and right skylights can be precisely adjusted to the front and rear sides respectively. Thus, according to the actual environmental needs inside the greenhouse, the ventilation and lighting conditions can be flexibly and precisely adjusted. During the opening and closing process, the racks 10 on both sides drive the window to move, so that the structural force is evenly distributed, avoiding structural deformation caused by concentrated force. For example, in strong wind weather, it can better withstand wind force, ensure the stability of the overall greenhouse structure, and extend its service life.

[0028] The transmission method employs a motor 6 driving a gear 7, with the gear 7 meshing with racks 10 on both sides. In this design, when the motor 6 drives the gear 7 to rotate, the racks 10 on both sides can slide smoothly within the slide groove 8, respectively driving the connecting frame 11 and the connected outer frame window 12 and inner frame window 14 to open or close forward and backward. Compared to some existing structures that may use simple linkage or chain transmissions, the gear 7 and rack 10 transmission can more evenly transmit power to the two windows (outer frame window 12 and inner frame window 14), making the force on both windows more balanced and avoiding excessive force on one side leading to structural deformation. The outer frame window 12... Limiting blocks 13 are fixedly connected to the bottom left and right ends of the inner frame window 14. Limiting grooves 18 are opened on the opposite side of the outer frame crossbar 3 and the inner frame crossbar 17. The limiting blocks 13 are slidably connected to the inner wall of the limiting grooves 18. This limiting structure can effectively restrict the movement trajectory of the window (outer frame window 12 and inner frame window 14), prevent the window from shaking or shifting during opening and closing, and ensure the stability of the structure. In severe weather such as strong winds, the limiting structure plays an important role in preventing the window from swinging excessively due to wind and other external forces, thereby protecting the safety of the entire greenhouse skylight structure (including support column 1, double arch outer frame 2, double arch inner frame 15, etc.).

[0029] Reference Figure 2 , Figure 3 and Figure 5 A second sliding groove 19 is provided at the middle of the inner frame vertical bar 16 on one side. A second through groove 20 is provided on the front side of the inner frame horizontal bar 17. A filter plate 21 is slidably connected to the inner wall of the second sliding groove 19. A connecting block 22 is fixedly connected to the front side of the filter plate 21. A screw hole 23 is provided at the bottom front end of the inner frame window 14. The connecting block 22 is connected to the screw hole 23 through a fixing bolt 24. The fixing bolt 24 is threadedly connected to the screw hole 23. The filter plate 21 passes through the second through groove 20 and slides along its inner wall. The outer frame window 12 and the inner frame window 14 are both fixedly connected to the left and right ends of the bottom of the outer frame window 12 and the inner frame window 14. The outer frame crossbar 3 and the inner frame crossbar 17 are both provided with limit grooves 18 on the opposite side. The limit blocks 13 are slidably connected to the inner walls of the limit grooves 18. The left end connecting frame 11 is fixedly connected to the front end of the outer wall of the left side rack 10, and the right end connecting frame 11 is fixedly connected to the rear end of the outer wall of the right side rack 10. The bottom of the outer frame window 12 is in contact with the top of the outer frame crossbar 3.

[0030] Specifically, when the motor 6 drives the gear 7 to rotate and drive the rack 10 to move, the connecting frame 11 moves accordingly. The outer frame window 12 and the inner frame window 14 open and close synchronously, and at the same time drive the filter plate 21 connected to it to slide in the slide groove 19 and the through groove 20 to achieve the functions of ventilation and filtration. The filter plate 21 can filter the air entering the greenhouse during ventilation to prevent dust, debris and other things from entering the greenhouse and affecting crop growth. The connecting block 22 is connected to the screw hole 23 of the inner frame window 14 by the fixing bolt 24, which facilitates the installation and disassembly of the filter plate 21 and makes it easy to clean and replace the filter plate 21.

[0031] Working principle: The motor 6 starts and drives the gear 7 to rotate. The gear 7 meshes with the racks 10 on the left and right sides, causing the left rack 10 to slide backward along the slide groove 8, which drives the left end connecting frame 11 and the connected outer frame window 12 and inner frame window 14 to open backward. The right rack 10 slides forward along the slide groove 8, which drives the right end connecting frame 11 and the connected outer frame window 12 and inner frame window 14 to open forward, thereby precisely adjusting ventilation and lighting. At the same time, the opening and closing of the outer frame window 12 and inner frame window 14 causes the filter plate 21 to slide in the slide groove 19 and the through groove 20, so as to filter the air during ventilation. The filter plate 21 is connected to the inner frame window 14 through the fixing bolt 24, which is convenient for installation, disassembly and cleaning. In addition, the limit block 13 slides in the limit groove 18 to ensure the stability of the window movement.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A skylight opening and closing mechanism for a double-arched, double-membrane greenhouse, characterized in that, The system includes a support column (1), a double-arch inner frame (15) fixedly connected to the middle of the support column (1), inner frame longitudinal bars (16) fixedly connected to the front and rear sides of the inner wall of the double-arch inner frame (15), inner frame cross bars (17) fixedly connected to the left and right sides of the inner wall of the double-arch inner frame (15), a double-arch outer frame (2) fixedly connected to the top of the support column (1), outer frame cross bars (3) fixedly connected to the front and rear sides of the inner wall of the double-arch outer frame (2), outer frame longitudinal bars (4) fixedly connected to the left and right sides of the inner wall of the double-arch outer frame (2), and a mounting base (5) fixedly connected to the middle of the bottom of the double-arch outer frame (2). The mounting base (5) has a sliding groove (8) on both the left and right sides of its inner wall. A through slot (9) is provided on both the left and right sides. A motor (6) is fixedly connected to the middle of the bottom side of the inner wall of the mounting base (5). A gear (7) is fixedly connected to the top of the motor (6). A rack (10) is meshed with the left and right sides of the gear (7). The rack (10) is slidably connected to the inner wall of the slide groove (8). A connecting frame (11) is fixedly connected to the outer side of the rack (10). The connecting frame (11) passes through the through slot (9) and is slidably connected to it. An outer frame window (12) is fixedly connected to the top of the connecting frame (11). An inner frame window (14) is fixedly connected to the bottom of the connecting frame (11). The inner frame window (14) is in contact with the top of the inner frame longitudinal bar (16).

2. The skylight opening and closing mechanism for a double-arched, double-membrane greenhouse according to claim 1, characterized in that: A second sliding groove (19) is provided at the middle end of the inner frame longitudinal rod (16) on one side, and a second through groove (20) is provided on the front side of the inner frame cross rod (17). A filter plate (21) is slidably connected to the inner wall of the second sliding groove (19).

3. The skylight opening and closing mechanism for a double-arched, double-membrane greenhouse according to claim 2, characterized in that: A connecting block (22) is fixedly connected to the front side of the filter plate (21), and a screw hole (23) is opened at the bottom front end of the inner frame window (14). The connecting block (22) is connected to the screw hole (23) through a fixing bolt (24), and the fixing bolt (24) is threadedly connected to the screw hole (23).

4. The skylight opening and closing mechanism for a double-arched, double-membrane greenhouse according to claim 2, characterized in that: The filter plate (21) passes through the through groove (20) and is slidably connected to its inner wall.

5. The skylight opening and closing mechanism for a double-arched, double-membrane greenhouse according to claim 1, characterized in that: Limiting blocks (13) are fixedly connected to the bottom left and right ends of the outer frame window (12) and the inner frame window (14). Limiting grooves (18) are opened on the opposite side of the outer frame crossbar (3) and the inner frame crossbar (17). The limiting blocks (13) are slidably connected to the inner wall of the limiting grooves (18).

6. The skylight opening and closing mechanism for a double-arched, double-membrane greenhouse according to claim 1, characterized in that: The connecting frame (11) at the left end is fixedly connected to the front end of the outer wall of the rack (10) on the left side, and the connecting frame (11) at the right end is fixedly connected to the rear end of the outer wall of the rack (10) on the right side.

7. The skylight opening and closing mechanism for a double-arched, double-membrane greenhouse according to claim 1, characterized in that: The bottom of the outer frame window (12) is attached to the top of the outer frame crossbar (3).

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