Sunshade and heat preservation integrated automatic adjusting curtain for seedling growing greenhouse

Abstract

The utility model provides a seedling growing greenhouse sun-shading and heat-preserving integrated automatic adjusting curtain, which relates to the technical field of sun-shading and heat-preserving curtains, and comprises a curtain and a plurality of fixing seats, the fixing seats are equally divided into two groups according to the number and are equidistantly distributed along the unfolding direction of the curtain, and one side of each fixing seat is fixedly provided with a connecting seat. Gears are rotationally connected to the upper positions and the lower positions of the opposite inner walls of the connecting seats, after the curtain is completely unfolded, one gear in the connecting seats is driven to rotate, and then the other gear can rotate reversely under the meshing connection effect, that is, the two connecting arms are close to each other, and the fixing frame and the pressing cylinder in the fixing frame are close to each other; and the edge of the curtain is clamped by the two pressing cylinders, so that the edge of the unfolded curtain can be fixed.

Description

Technical Field

[0001] This utility model relates to the field of shading and heat preservation curtain technology, and in particular to an integrated automatic adjustable curtain for shading and heat preservation in seedling greenhouses. Background Technology

[0002] Shading and heat-insulating curtains in seedling greenhouses are an important component of greenhouse environmental control, mainly used to regulate light and temperature inside the greenhouse to meet the needs of crop growth.

[0003] For example, in the existing greenhouse frame-type retractable shading device, publication number CN218977496U, when shading is needed, the drive motor drives the drive rod to rotate, which in turn drives a large gear A, which is rotatably connected at one end, to rotate. Under the action of the chain, the rotation of the large gear A drives the small gear B to rotate at the same speed. After the small gear B rotates, it causes the rotating rod to rotate. The rotation of the rotating rod causes the wire rope to wind around the rotating rod, and the wire rope will exert a pulling force on the support rod connected to the front end of the shading curtain, pulling the shading curtain slowly to one end. When the shading curtain reaches one end, it will not move forward anymore. When shading is not needed, the drive motor reverses, causing the drive rod to reverse, and the drive rod reverses to retract the shading curtain.

[0004] However, in current technology, the curtain is mainly fixed using support rods and wire ropes, without a dedicated clamping device. This design means that when the curtain is unfolded, the two sides may not fit tightly against the frame, causing the curtain to sway easily under wind or other external forces. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art by proposing an integrated automatic adjustable curtain for shading and heat preservation in seedling greenhouses.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an integrated automatic adjustable curtain for shading and heat preservation in a seedling greenhouse, comprising a curtain and several fixed seats. The fixed seats are divided into two groups of equal numbers and distributed at equal intervals along the unfolding direction of the curtain. A connecting seat is fixedly installed on one side of each fixed seat. Gears are rotatably connected to the upper and lower positions of the connecting seat relative to the inner wall. Two gears in the connecting seat are meshed and connected, and a connecting arm is fixedly installed on the gear tooth surface. A fixed frame is fixedly installed on the swing side of the connecting arm. A pressure cylinder is fixedly installed in the fixed frame. Two pressure cylinders of the same connecting seat are located on the upper and lower sides of the curtain and are used to clamp the two sides of the curtain.

[0007] Preferably, a rack frame is slidably mounted on the top edge of the connecting seat, and a groove is provided on the surface of the connecting arm above the connecting seat to fit the outer edge of the rack frame with clearance.

[0008] Preferably, one side of the rack frame extends downward and a spring rod is provided between the extended side and the back of the connecting seat. A first pull wire is fixedly installed on the other side of the rack frame extension. One end of the first pull wire passes through the fixed seat and a connector is provided at the through end.

[0009] Preferably, the upper surface of the screen has several equidistantly distributed positioning holes on both long sides, and a spring post is provided through the upper surface of the connecting arm located above the connecting seat. The central post of the spring post is provided through the connecting arm located below the same connecting seat.

[0010] Preferably, the spring column center column is inserted into the positioning hole on the surface of the curtain, and a second pull wire is fixedly installed at the top of the spring column center column, the second pull wire passing through the surface of the upper connecting arm inside the connecting seat.

[0011] Preferably, the surface of the second pull wire is fitted with a rope-threading block that is rotatably mounted on the side of the connecting seat. The center of the rotation point of the rope-threading block coincides with the central axis of the gear located at the upper position inside the same connecting seat. One end of the second pull wire also passes through the surface of the fixing seat and is provided with a connector.

[0012] Preferably, each of the two long sides of the curtain is provided with two bus lines, one of which is connected to the connector of several second pull lines in the same position, and the other bus line is connected to the connector of several first pull lines in the same position.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, after the curtain is fully unfolded, by driving one of the gears in the connecting seat to rotate, the other gear can be rotated in the opposite direction under the action of meshing connection, that is, the two connecting arms are brought closer to each other, and the fixing frame and the internal pressure cylinder are brought closer to each other. By using the two pressure cylinders to clamp the edge of the curtain, the edge of the unfolded curtain can be fixed.

[0015] 2. In this utility model, under the traction of the second pull line, the spring column overcomes the thrust of the surface spring and descends to pass through the positioning hole on the surface of the curtain and the connecting arm surface below in sequence, thereby further fixing the edge of the curtain. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of an integrated automatic adjustable curtain for shading and heat preservation in a seedling greenhouse is provided for this utility model.

[0017] Figure 2 This utility model provides a structural schematic diagram of an integrated automatic adjustable curtain fixing base for shading and heat preservation in a seedling greenhouse.

[0018] Figure 3This utility model proposes an integrated automatic adjustable curtain for shading and heat preservation in seedling greenhouses. Figure 2 A schematic diagram of the rear view structure;

[0019] Figure 4 for Figure 1 A partial structural diagram of a single fixed base.

[0020] Legend: 1. Curtain; 2. Pressure cylinder; 3. Fixing base; 4. Fixing frame; 5. Second pull cable; 6. Connecting arm; 7. Spring column; 8. Gear; 9. Groove; 10. Rack frame; 11. Spring rod; 12. Connector; 13. First pull cable; 14. Main cable; 15. Connecting base; 16. Positioning hole; 17. Cable threading block. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] like Figures 1-4 As shown, an integrated automatic adjustable shading and heat preservation curtain for seedling greenhouses includes a curtain 1. When in use, the curtain 1 is combined with... Figure 1 Based on common sense and conventional methods, a roller is set at one end of the curtain 1 to wind and roll up the curtain 1, and a traction shaft is set at the other end of the curtain 1 and a track is used to drive the inner curtain 1 to unfold. Specifically, refer to the unfolding method of the "shading curtain" in the greenhouse frame-type retractable shading device with publication number CN218977496U.

[0024] It also includes several fixed seats 3, which are divided into two groups of equal quantity and distributed equidistantly along the unfolding direction of the curtain 1. A connecting seat 15 is fixedly installed on one side of the fixed seat 3. Gears 8 are rotatably connected to the upper and lower positions of the connecting seat 15 relative to the inner wall. The two gears 8 in the connecting seat 15 are meshed and connected, and a connecting arm 6 is fixedly installed on the tooth surface of the gear 8. A fixed frame 4 is fixedly installed on the swing side of the connecting arm 6. A pressure cylinder 2 is fixedly installed in the fixed frame 4. The two pressure cylinders 2 of the same connecting seat 15 are located on the upper and lower sides of the curtain 1 and are used to clamp the two sides of the curtain 1. Under normal circumstances, the two connecting arms 6 in the connecting seat 15 are distributed in a parallel state. When the curtain 1 is unfolded or retracted... Before rolling, the two connecting arms 6 swing in opposite directions in a V-shape to ensure that the distance between the two fixed frames 4 is sufficient for the curtain 1 to unfold or roll up smoothly. After the curtain 1 is fully unfolded, by driving one of the gears 8 in the connecting seat 15 to rotate, the other gear 8 can be rotated in the opposite direction under the action of meshing connection. That is, the two connecting arms 6 are brought closer to each other, and the fixed frames 4 and the internal pressure cylinders 2 are brought closer to each other. By using the two pressure cylinders 2 to clamp the edge of the curtain 1, the edge of the unfolded curtain 1 can be fixed. In this solution, in order to ensure the clamping force, an anti-slip rubber pad can be installed on the surface of the pressure cylinder 2 to increase the friction during contact.

[0025] A rack frame 10 is slidably mounted on the top edge of the connecting seat 15. A groove 9, which mates with the outer edge of the rack frame 10, is provided on the surface of the connecting arm 6 above the connecting seat 15. One side of the rack frame 10 extends downwards, and a spring rod 11 is positioned between one end of the extended portion and the back of the connecting seat 15. A first pull wire 13 is fixedly mounted on the other end of the extended portion of the rack frame 10. One end of the first pull wire 13 passes through the fixed seat 3, and a connector 12 is provided at the through end. The pull force of the spring rod 11 ensures that the rack frame 10 maintains its normal position. Figure 3 As shown, under the action of meshing connection, the gear 8 at the upper position inside the connecting seat 15 will not rotate. Similarly, under the action of meshing connection, the position of the other gear 8 inside the connecting seat 15 is fixed. When the two pressure cylinders 2 need to be opened, by applying a pulling force to the connecting head 12, the rack frame 10 is moved against the pulling force of the spring rod 11 under the traction of the first pull line 13, thereby realizing the rotation of the gear 8 that meshes with it. At the same time, the other gear 8 that meshes with it rotates synchronously in the opposite direction, so that the connecting arm 6 can drive the fixed frame 4 to rotate and open, which is convenient for the curtain 1 to be unfolded or rolled up.

[0026] The upper surface of the screen 1 has several equidistantly distributed positioning holes 16 on both long sides. A spring post 7 is installed through the upper surface of the connecting arm 6 located above the connecting seat 15. The center post of the spring post 7 is installed through the connecting arm 6 located below the same connecting seat 15. The center post of the spring post 7 is inserted into the positioning holes 16 on the surface of the screen 1. A second pull wire 5 is fixedly installed at the top of the center post of the spring post 7. The second pull wire 5 passes through the surface of the connecting arm 6 inside the connecting seat 15. A rope-threading block 17 is rotatably installed on the surface of the second pull wire 5 on the side of the connecting seat 15. The center of the rotation point of the rope-threading block 17 coincides with the central axis of the gear 8 located inside the same connecting seat 15. One end of the second pull wire 5 also passes through the fixing seat 3. The surface is provided with a connector 12, which is located to further fix the edge of the curtain 1. When the edge of the curtain 1 is clamped by two pressure cylinders 2, by applying a pulling force to the connector 12 of the second pull line 5, the spring column 7 overcomes the thrust of its surface spring and descends to pass through the positioning hole 16 on the surface of the curtain 1 and the surface of the connecting arm 6 below it under the traction of the second pull line 5, thereby further fixing the edge of the curtain 1. The additional rope-threading block 17 can drive the second pull line 5 to bend when the connecting arm 6 rotates and swings. And because the rope-threading block 17 is located at the rotation point of the gear 8, the second pull line 5 will not move as a whole when it bends due to the swing of the connecting arm 6.

[0027] Two busbars 14 are provided on both long sides of the curtain 1. One busbar 14 is connected to the connector 12 on several second pull wires 5 in the same position. The other busbar 14 is connected to the connector 12 on several first pull wires 13 in the same position. When in use, the person can pull the busbar 14 at the corresponding position to realize the synchronous pulling of several first pull wires 13 or several second pull wires 5 on the corresponding side of the curtain 1.

[0028] Working principle: When the curtain 1 needs to be opened, the person pulls the corresponding bus 14 to move the connector 12 of the first pull line 13 synchronously. By applying a pulling force to the connector 12, the rack frame 10 moves against the pulling force of the spring rod 11 under the traction of the first pull line 13, thereby realizing the rotation of the gear 8 that meshes with it. At the same time, the other gear 8 that meshes with it rotates synchronously in the opposite direction, so that the connecting arm 6 drives the fixed frame 4 to rotate and open, making it convenient for the curtain 1 to unfold. After the curtain 1 is fully unfolded, the bus 14 is released, and the corresponding rack frame 10 is pulled back to its original position under the elastic reset action of the spring rod 11, so that one of the gears 8 in the pre-engaged connecting seat 15 can rotate. Under the meshing connection action, the other gear 8 can rotate in the opposite direction, that is, the two connecting arms 6 move closer to each other, and the fixed frame 4 and the internal pressure cylinder 2 move closer to each other. The two pressure cylinders 2 clamp the edge of the curtain 1, so that the edge of the unfolded curtain 1 can be fixed.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An integrated automatic adjustable shading and heat preservation curtain for seedling greenhouses, comprising a curtain (1), characterized in that: It also includes several fixed seats (3), which are divided into two groups of equal numbers and distributed at equal intervals along the unfolding direction of the curtain (1). A connecting seat (15) is fixedly installed on one side of the fixed seat (3). The connecting seat (15) is rotatably connected to gears (8) at both the upper and lower positions relative to the inner wall. The two gears (8) in the connecting seat (15) are meshed and connected, and a connecting arm (6) is fixedly installed on the tooth surface of the gear (8). A fixed frame (4) is fixedly installed on the swing side of the connecting arm (6). A pressure cylinder (2) is fixedly installed in the fixed frame (4). The two pressure cylinders (2) of the same connecting seat (15) are located on the upper and lower sides of the curtain (1) and are used to clamp the two sides of the curtain (1).

2. The automatically adjustable shading and heat preservation curtain for seedling greenhouses according to claim 1, characterized in that: The top edge of the connecting seat (15) is slidably fitted with a rack frame (10), and the surface of the connecting arm (6) above the connecting seat (15) is provided with a groove (9) that is clearance-fitted with the outer side of the rack frame (10).

3. The automatically adjustable shading and heat preservation integrated curtain for seedling greenhouses according to claim 2, characterized in that: The rack frame (10) extends downward on one side and a spring rod (11) is provided between the extended side and the back of the connecting seat (15). A first pull wire (13) is fixedly installed on the other side of the extended part of the rack frame (10). One end of the first pull wire (13) passes through the fixed seat (3) and a connector (12) is provided at the through end.

4. The automatically adjustable shading and heat preservation integrated curtain for seedling greenhouses according to claim 1, characterized in that: The upper surface of the curtain (1) has several equidistantly distributed positioning holes (16) on both long sides. A spring column (7) is provided through the upper surface of the connecting arm (6) located above the connecting seat (15). The center column of the spring column (7) is provided through the connecting arm (6) located below the same connecting seat (15).

5. The automatically adjustable shading and heat preservation integrated curtain for seedling greenhouses according to claim 4, characterized in that: The central column of the spring column (7) is inserted into the positioning hole (16) on the surface of the curtain (1). A second pull wire (5) is fixedly installed at the top of the central column of the spring column (7). The second pull wire (5) passes through the surface of the upper connecting arm (6) inside the connecting seat (15).

6. The integrated shading and heat preservation automatic adjusting curtain for seedling greenhouses according to claim 5, characterized in that: The second pull wire (5) is fitted with a rope-threading block (17) that is rotatably mounted on the side of the connecting seat (15). The center of the rotation point of the rope-threading block (17) coincides with the central axis of the gear (8) located above the same connecting seat (15). One end of the second pull wire (5) also passes through the surface of the fixing seat (3) and is provided with a connector (12).

7. The automatically adjustable shading and heat preservation integrated curtain for seedling greenhouses according to claim 6, characterized in that: The curtain (1) has two busbars (14) on each of its long sides. One busbar (14) is connected to the connector (12) on several second pull wires (5) in the same position, and the other busbar (14) is connected to the connector (12) on several first pull wires (13) in the same position.

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