A type of double-opening multi-span greenhouse

By using a double-opening roof structure and a servo motor-driven telescopic roof sliding mechanism and scraper to remove impurities, the problem of limited roof opening range is solved, achieving uniform light and ventilation inside the greenhouse and ensuring consistent plant growth.

CN224936243UActive Publication Date: 2026-11-06INNER MONGOLIA JIUNONG ECOLOGICAL AGRICULTURE SCIENCE & TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Application Number
CN202522611997.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-09
Publication Date
2026-11-06
Estimated Expiration
2035-12-09

AI Technical Summary

Technical Problem

In existing double-span greenhouses, the limited opening range of the skylights makes it difficult for sunlight and rainwater to reach certain areas inside the greenhouse, resulting in uneven plant growth.

Method used

The structure features a double-opening roof, including a telescopic roof, an arc-shaped slide rail, a rotating shaft, a transmission frame, a servo motor, and a scraper. The servo motor drives the rotating shaft to slide the transmission frame and the telescopic roof, allowing the roof to fully open. The scraper removes impurities, and the waste is collected in a collection trough.

Benefits of technology

It achieves all-round ventilation and lighting in the greenhouse, avoids impurities blocking sunlight, ensures uniform plant growth, and regularly cleans up garbage.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of plastic greenhouse technology and discloses a double-opening multi-span greenhouse, including a greenhouse body set above the ground, a double-opening roof structure set above the greenhouse body, two fixed roofs fixed on the top surface of the greenhouse body, each of the two fixed roofs having a retractable telescopic roof inside its cavity, the two telescopic roofs being able to engage, and each of the ends of the two fixed roofs having a scraper for scraping impurities. Two rotating shafts drive two transmission frames to rotate, and the two telescopic roofs are driven to rotate. The two telescopic roofs slide in the middle of two arc-shaped slide rails. The two telescopic roofs rotate into the two fixed roofs, the locking blocks and slots disengage, and the entire top of the greenhouse body is opened, allowing sunlight and rainwater to fully enter the greenhouse body, and improving ventilation.
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Description

Technical Field

[0001] This utility model belongs to the field of plastic greenhouse technology, specifically, it relates to a double-opening multi-span greenhouse. Background Technology

[0002] The double-span greenhouse is a modern agricultural facility that achieves efficient ventilation, lighting, and environmental control through bidirectional opening of the roof. It is mainly used for the large-scale cultivation of high-value-added crops such as off-season vegetables and flowers.

[0003] The prior art discloses a double-opening butterfly-shaped skylight plastic greenhouse for large-scale vegetable production (CN202020954301.9). The top of the greenhouse body is provided with a skylight frame. The first and last ends of the skylight frame are respectively provided with a first end support and a last end support. A transmission rod is rotatably connected between the first end support and the last end support. One end of the transmission rod is fixedly connected to a transmission motor, which is fixed on the first end support. The transmission motor drives the transmission rod to rotate. Multiple curved arm connecting rod assemblies are evenly spaced along the length of the transmission rod. The curved arm connecting rod assembly includes a connecting rod A, a connecting rod B, and a fixed shaft. One end of the connecting rod A is fixed to the transmission rod by fasteners. The other end of the connecting rod A is rotatably connected to one end of the connecting rod B through the fixed shaft. The other end of the connecting rod B is fixedly connected to one side of the greenhouse skylight.

[0004] Existing technology uses a hinged arm linkage assembly to open and close the greenhouse skylights. The skylights are located on both sides of the greenhouse top, and their range is limited. The planting area inside the greenhouse is relatively large, but the middle of the skylights remains closed, making it difficult for sunlight and rainwater to reach the plants in the middle, resulting in uneven growth of plants in different areas.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the technical problem of slight rotation of the bearing plate mentioned above, the basic concept of the technical solution adopted by this utility model is: a double-opening multi-span greenhouse with a greenhouse body, which is set above the ground; The double-opening roof structure is set above the shed body. Two fixed roofs are fixed on the top surface of the shed body. Each of the two fixed roofs has a retractable telescopic roof inside its cavity. The two telescopic roofs can be locked together. Each of the two fixed roofs has a scraper for scraping impurities at its end. The double-opening canopy structure also includes an arc-shaped slide rail. A side canopy is fixed on each side of the top surface of the canopy, and an arc-shaped slide rail is fixed on the opposite side of the two side canopies. The two sides of the two telescopic canopies are slidably connected to the middle of an arc-shaped slide rail. The double-opening canopy structure also includes a rotating shaft and a transmission frame. The bottom surface of each of the two telescopic canopies is fixedly connected to the top surface of a rotating shaft, one side of each of the two rotating shafts is fixedly connected to one end of a transmission frame, and the top surface of each of the two transmission frames is fixedly connected to the bottom surface of the middle of a telescopic canopy. The double-opening canopy structure also includes protective covers and servo motors. Each side of each canopy is fixedly equipped with a protective cover, and each of the two protective covers is fixedly equipped with a servo motor. The rotating shaft of each servo motor is fixedly connected to one end of a rotating shaft through a coupling, and one end of each rotating shaft is rotatably connected to the center position of one side of a canopy.

[0007] In a preferred embodiment of the present invention, the double-opening roof structure further includes a locking block and a locking groove. A locking block is fixed on one side of one telescopic roof, and a locking groove is opened on one side of the other telescopic roof. The locking block and the locking groove engage with each other.

[0008] In a preferred embodiment of the present invention, the scraper block has an overall arc shape and one end of the scraper block has a bevel.

[0009] In a preferred embodiment of this utility model, there are several sheds, and each shed has a set of double-opening shed roof structures fixed on its top surface. A collection trough is provided between each double-opening shed roof structure. The two sides of the collection trough are attached to two adjacent fixed top arc surfaces. A controller is provided inside each shed, and each servo motor is electrically connected to the controller.

[0010] Compared with the prior art, the present invention has the following advantages: 1. Two rotating shafts drive two transmission frames to rotate, which in turn drives two telescopic tops to rotate. The two telescopic tops slide in the middle of two arc-shaped slide rails. The two telescopic tops rotate into the two fixed tops, and the locking blocks and slots disengage. The entire top of the shed is opened, allowing sunlight and rainwater to fully enter the shed and making ventilation more efficient.

[0011] 2. Two scrapers remove impurities from the top surfaces of the two telescopic roofs, preventing leaves and other debris from blocking sunlight. The debris follows the scrapers and falls along the fixed roof arc into the collection trough, where it is manually cleaned periodically.

[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0013] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a disassembly diagram of the double-opening roof structure of this utility model; Figure 3This is a schematic diagram of the telescopic roof of this utility model; Figure 4 This is a schematic diagram of the bracket of this utility model; Figure 5 This is a schematic diagram of the collection trough of this utility model.

[0014] In the diagram: 1. Shed body; 2. Side shed; 3. Protective cover; 4. Arc-shaped slide rail; 5. Servo motor; 6. Fixed top; 7. Telescopic top; 8. Rotating shaft; 9. Scraper; 10. Transmission frame; 11. Locking block; 12. Locking slot; 13. Collection trough. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0016] A type of multi-span greenhouse with double-opening roof, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the double-opening roof structure is located above the shed body 1. Two fixed roofs 6 are fixedly mounted on the top surface of the shed body 1. Each of the two fixed roofs 6 has a retractable telescopic roof 7 inside its cavity. The two telescopic roofs 7 can be locked together. Each end of the two fixed roofs 6 has a scraper block 9 for scraping impurities. The double-opening roof structure also includes an arc-shaped slide rail 4. A side roof 2 is fixedly mounted on each side of the top surface of the shed body 1. An arc-shaped slide rail 4 is fixedly mounted on the opposite side of each of the two side roofs 2. Each side of the two telescopic roofs 7 is slidably connected to the middle of an arc-shaped slide rail 4. The double-opening canopy structure also includes a rotating shaft 8 and a transmission frame 10. The bottom surfaces of the two telescopic canopies 7 are each fixedly connected to the top surface of a rotating shaft 8. One side of each of the two rotating shafts 8 is fixedly connected to one end of a transmission frame 10. The top surfaces of each of the two transmission frames 10 are fixedly connected to the bottom surface of the middle of a telescopic canopy 7. The double-opening canopy structure also includes a protective cover 3 and a servo motor 5. A protective cover 3 is fixedly installed on one side of each side canopy 2. A servo motor 5 is fixedly installed inside each of the two protective covers 3. The rotating shaft of the servo motor 5 is fixedly connected to one end of a rotating shaft 8 through a coupling. One end of the rotating shaft 8 is rotatably connected to the center position of one side of a side canopy 2. The double-opening canopy structure also includes a locking block 11 and a locking groove 12. A locking block 11 is fixedly installed on one side of one telescopic canopy 7, and a locking groove 12 is opened on one side of the other telescopic canopy 7. The locking block 11 and the locking groove 12 engage with each other.

[0017] Turn on the power to the two servo motors 5. The two servo motors 5 drive one end of the two rotating shafts 8 to rotate. The two rotating shafts 8 drive the two transmission frames 10 to rotate. The two telescopic tops 7 are driven to rotate. The two telescopic tops 7 slide in the middle of the two arc-shaped slide rails 4. The two telescopic tops 7 rotate into the two fixed tops 6. The locking block 11 and the locking slot 12 disengage. The entire top of the shed 1 is opened, and sunlight and rainwater can fully enter the shed 1, making ventilation more unobstructed.

[0018] A type of multi-span greenhouse with double-opening roof, such as Figure 1 and Figure 5 As shown, the shed 1 is set above the ground. The scraper 9 is arc-shaped, with one end of the scraper 9 being inclined. There are several sheds 1. The top surface of each shed 1 is fixed with a set of double-opening shed roof structures. A collection trough 13 is set between each double-opening shed roof structure. The two sides of the collection trough 13 are attached to two adjacent fixed top arc surfaces 6. A controller is set inside each shed 1. Each servo motor 5 is electrically connected to the controller.

[0019] When the two telescopic roofs 7 extend into the fixed roof 6, the two scrapers 9 scrape away impurities from the top surface of the two telescopic roofs 7 to prevent leaves and other garbage from blocking sunlight. The garbage falls along the scrapers 9 and then along the arc surface of the fixed roof 6 into the collection trough 13. The garbage in the collection trough 13 is cleaned manually periodically. The controller controls all servo motors 5 to rotate at a certain angle, and all telescopic roofs 7 open at the same time. The collection trough 13, telescopic roofs 7 and fixed roof 6 are all made of PVC sun panels, and the rotating shaft 8 and transmission frame 10 are all made of steel pipes.

[0020] The working principle of this utility model is as follows: When the power of the two servo motors 5 is turned on, the two servo motors 5 drive one end of the two rotating shafts 8 to rotate, the two rotating shafts 8 drive the two transmission frames 10 to rotate, and the two telescopic roofs 7 are rotated. The two telescopic roofs 7 slide in the middle of the two arc-shaped slide rails 4. The two telescopic roofs 7 rotate into the two fixed roofs 6, the locking block 11 and the locking slot 12 disengage, and the entire top of the shed 1 is opened, allowing sunlight and rainwater to fully enter the shed 1, and ventilation is more unobstructed. When the two telescopic roofs 7 extend into the fixed roofs 6, the two scrapers 9 scrape away the impurities on the top surface of the two telescopic roofs 7 to prevent leaves and other garbage from blocking sunlight on the top surface of the telescopic roofs 7. The garbage falls along the scrapers 9 and then along the arc surface of the fixed roofs 6 into the collection trough 13. The garbage in the collection trough 13 is cleaned manually periodically. The controller controls all servo motors 5 to rotate at a certain angle, and all telescopic roofs 7 open at the same time.

[0021] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A type of multi-span greenhouse with a double-opening roof, characterized in that, include The shed (1) is set above the ground; The double-opening roof structure is set above the shed body (1). The top surface of the shed body (1) is provided with two fixed roofs (6). Each of the two fixed roofs (6) is provided with a retractable telescopic roof (7). The two telescopic roofs (7) can be locked together. Each of the ends of the two fixed roofs (6) is provided with a scraper block (9) for scraping impurities. The double-opening canopy structure also includes an arc-shaped slide rail (4). A side canopy (2) is fixed on each side of the top surface of the canopy body (1). An arc-shaped slide rail (4) is fixed on the opposite side of the two side canopies (2). The two telescopic canopies (7) are slidably connected to the middle of an arc-shaped slide rail (4) on both sides. The double-opening roof structure also includes a rotating shaft (8) and a transmission frame (10). The bottom surfaces of the two telescopic roofs (7) are fixedly connected to the top surface of a rotating shaft (8), one side of each of the two rotating shafts (8) is fixedly connected to one end of a transmission frame (10), and the top surfaces of each of the two transmission frames (10) are fixedly connected to the bottom surface of the middle of a telescopic roof (7). The double-opening canopy structure also includes a protective cover (3) and a servo motor (5). Each side of each canopy (2) is fixed with a protective cover (3), and each of the two protective covers (3) is fixed with a servo motor (5). The rotating shaft of the servo motor (5) is fixedly connected to one end of a rotating shaft (8) through a coupling. One end of the rotating shaft (8) is rotatably connected to the center position of one side of a side canopy (2).

2. The double-span multi-span greenhouse with a double-opening roof according to claim 1, characterized in that, The double-opening roof structure also includes a locking block (11) and a locking groove (12). A locking block (11) is fixed on one side of one telescopic roof (7), and a locking groove (12) is opened on one side of the other telescopic roof (7). The locking block (11) and the locking groove (12) engage with each other.

3. A double-span multi-span greenhouse with a double-opening roof according to claim 2, characterized in that, The scraper (9) has an overall arc shape, and one end of the scraper (9) is inclined.

4. A double-span multi-span greenhouse with a double-opening roof as described in claim 3, characterized in that, There are several sheds (1). Each shed (1) has a set of double-opening shed roof structures fixed on its top surface. A collection trough (13) is set between each double-opening shed roof structure. The two sides of the collection trough (13) are attached to the arc surfaces of two adjacent fixed tops (6). A controller is set inside each shed (1). Each servo motor (5) is connected to the controller by electrical signal.

Citation Information

Patent Citations

  • Double-opening butterfly type skylight plastic greenhouse for large-scale production of vegetables

    CN212324894U