Agricultural lifting greenhouse

Abstract

The utility model relates to the technical field of the greenhouse, especially is a kind of agricultural lifting greenhouse, including the shed body of constituting greenhouse support frame, the lifting mechanism for the lifting of greenhouse and the driving mechanism for driving lifting mechanism operation;The shed body includes the greenhouse base body fixed to ground, the top of shed that can be lifted and the sealing folding subassembly for sealing connection top of shed and greenhouse base body;The lifting mechanism includes the fixed column for guiding support, the transmission unit for driving the top of shed lifting and the lifting frame for connecting top of shed and transmission unit. The utility model designs sealing folding subassembly to ensure that the inside of shed body can maintain stable sealing environment in the process of lifting use of greenhouse, so as to ensure that the temperature and humidity of planting environment are not influenced by external environment when top of shed is lifted, and chain is used to complete lifting, and stability is higher when lifting, more convenient for the control of driving assembly.

Description

Technical Field

[0001] This utility model relates to the field of greenhouse technology, and in particular to an agricultural lifting greenhouse. Background Technology

[0002] With the development of the economy and society and the continuous improvement of technology, greenhouse cultivation technology has been widely promoted and applied. This allows people to minimize the impact of weather on vegetables, and even in the cold winter, they can eat green vegetables, which greatly improves people's lives. However, with the large-scale application of greenhouse technology, the problems that have arisen have gradually become prominent. Most of the existing greenhouses adopt a fixed integral structure, and the connection points of the components are directly welded and cannot be disassembled. As a result, once some components are damaged, the whole structure needs to be disassembled and replaced, which is both costly and time-consuming. Especially in typhoon days, since the greenhouse cannot be raised and lowered freely, it is easy to be blown away. In view of the above-mentioned problems and defects, it is necessary to propose new improvements to the design of existing greenhouses.

[0003] In the prior art, Chinese patent CN104303894 A discloses a movable lifting greenhouse, including a greenhouse body with a lifting frame installed on the body. The lifting frame is controlled by a movable control mechanism to achieve lifting and lowering on the greenhouse body. For example, the lifting frame can be raised during the planting season to facilitate farming, and it can be lowered during typhoons to prevent damage to the greenhouse and minimize losses. In addition, the component connection parts are set with movable buckles, which facilitates the replacement of damaged parts, greatly enhancing the product's practicality. Therefore, it has good application prospects.

[0004] However, the above technical solution has the following problems:

[0005] 1) Lack of a sealed structure. Greenhouse cultivation requires a sealed environment to ensure that the temperature and humidity inside the greenhouse are suitable for plant growth;

[0006] 2) Lifting and lowering are achieved through pulleys and wire ropes. Prolonged exposure to air can easily cause corrosion, affecting the stability of lifting and lowering.

[0007] Therefore, we need to provide a technical solution to solve the above-mentioned technical problems. Utility Model Content

[0008] The technical problem to be solved by this utility model is to provide an agricultural lifting greenhouse. The design of the sealed folding component ensures that the inside of the greenhouse can maintain a stable sealed environment during the lifting process, thereby ensuring that the temperature and humidity of the planting environment are not affected by the external environment when the greenhouse roof is lifted. Furthermore, the lifting is completed by a chain, which makes the lifting more stable and easier to control the drive component.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] This utility model provides an agricultural lifting greenhouse, including a greenhouse body that forms the greenhouse support frame, a lifting mechanism for lifting the greenhouse, and a drive mechanism for driving the lifting mechanism to operate.

[0011] The shed includes a shed base fixed to the ground, a retractable shed roof, and a sealing folding assembly for sealing and connecting the shed roof and the shed base.

[0012] The lifting mechanism includes a fixed column for guidance and support, a transmission unit for driving the roof to rise and fall, and a lifting frame for connecting the roof and the transmission unit.

[0013] During operation, the drive mechanism drives the transmission unit to move and raise or lower the roof. The sealing and folding assembly unfolds and folds along with the roof movement to maintain a sealed environment inside the greenhouse.

[0014] The transmission unit includes a first transmission chain arranged in a ring and connected to the lifting frame. The inner ring of the first transmission chain is meshed with a first driving sprocket and a first driven sprocket. A driving shaft and a driven shaft are respectively connected and installed at the shaft center of the first driving sprocket and the first driven sprocket. The driving shaft and the driven shaft are respectively installed on the fixed column in an up-down position. The driving shaft is connected to the drive mechanism.

[0015] The system includes at least four sets of transmission units arranged in a rectangular pattern corresponding to four fixed columns. These are a first transmission unit, a second transmission unit, a third transmission unit, and a fourth transmission unit. The first drive sprockets of the first and third transmission units are coaxially connected, as are the first driven sprockets of the first and third transmission units. The first drive sprockets of the second and fourth transmission units are coaxially connected, as are the first driven sprockets of the second and fourth transmission units. A second drive sprocket is mounted on the drive shaft of the first transmission unit, and a second driven sprocket is mounted on the drive shaft of the second transmission unit. A second transmission chain connects the second drive sprocket and the second driven sprocket.

[0016] The first drive sprocket is provided with a locking groove, and a locking plate is provided corresponding to the locking groove. A drive electric cylinder is connected to the locking plate, and the drive electric cylinder is fixedly installed on the drive shaft.

[0017] The fixed column is provided with a guide groove, and the transmission unit is embedded in the guide groove.

[0018] The sealing and folding assembly includes a foldable canopy that forms a sealed environment and multiple sets of scissor blade mechanisms on the inner side of the canopy for stable support of the canopy. The two side edges of the canopy are connected to the lifting frame and the greenhouse base respectively, and the two end edges of each set of scissor blade mechanisms are hinged to the lifting frame and the greenhouse base respectively.

[0019] The drive mechanism includes a drive motor connected to the active rotating shaft.

[0020] The driving mechanism includes an electric hoist, and the transmission unit includes symmetrically arranged lifting columns for support and a limiting guide rod disposed on the lifting columns. The electric hoist is installed on the top of the lifting columns, and the electric hoist is provided with a hook. The lifting frame is provided with a lifting ring corresponding to the hook.

[0021] During operation, the electric hoist is started, driving the hook to lift the frame up or down to complete the raising or lowering of the roof.

[0022] The system includes at least four lifting columns, each equipped with an electric hoist. Each electric hoist has a corresponding lifting control box, and these boxes are connected in series. A central control box is installed on the shed, electrically connected to the lifting control boxes. The central control box synchronously controls all the lifting control boxes to control the synchronous lifting and lowering operation of each electric hoist.

[0023] The beneficial effects of this utility model are:

[0024] This invention employs a drive mechanism to power the lifting mechanism's transmission unit, causing the lifting frame to rise or fall along the fixed columns, thus raising or lowering the greenhouse roof. During the roof's raising and lowering, a sealing folding assembly covers the space between the roof and the greenhouse base, ensuring the greenhouse's internal seal and meeting normal planting needs. This invention's lifting greenhouse design utilizes a sealing folding assembly to maintain a stable, sealed environment inside the greenhouse during raising and lowering, ensuring that the temperature and humidity of the planting environment are not affected by the external environment during roof raising and lowering. Furthermore, the use of a chain for raising and lowering provides greater stability and facilitates control of the drive assembly. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall installation structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of the shed of this utility model.

[0027] Figure 3 This is a schematic diagram of the transmission unit structure of this utility model.

[0028] Figure 4This is a schematic diagram of the installation structure of the transmission unit and lifting frame of this utility model.

[0029] Figure 5 For the present utility model Figure 4 A magnified structural diagram at point A.

[0030] Figure 6 This is a top view sectional structural diagram of the transmission unit and lifting frame installation of this utility model.

[0031] Figure 7 This is a schematic diagram of the internal structure of the sealing folding assembly of this utility model;

[0032] Figure 8 This is a schematic diagram of the installation structure for another embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the installation structure of the lifting control box of this utility model. Detailed Implementation

[0034] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0035] refer to Figures 1 to 8 As shown, an agricultural lifting greenhouse is characterized by comprising a greenhouse body 1 forming a greenhouse support frame, a lifting mechanism 2 for raising and lowering the greenhouse, and a drive mechanism 3 for driving the lifting mechanism 2. The greenhouse body 1 includes a greenhouse base 11 fixed to the ground, a liftable greenhouse roof 12, and a sealing and folding assembly 13 for sealingly connecting the greenhouse roof 12 and the greenhouse base 11. The lifting mechanism 2 includes a fixed column 21 for guiding and supporting, a transmission unit 22 for driving the greenhouse roof 12 to rise and fall, and a lifting frame 23 for connecting the greenhouse roof 12 and the transmission unit 22. During operation, the drive mechanism 3 drives the transmission unit 22 to move, thereby raising and lowering the greenhouse roof 12. The sealing and folding assembly 13 unfolds and folds as the greenhouse roof 12 moves, thereby maintaining a sealed environment inside the greenhouse.

[0036] The drive mechanism 3 drives the transmission unit 22 of the lifting mechanism 2, which in turn drives the lifting frame 23 to rise or fall along the fixed column 21, causing the greenhouse roof 12 to rise or fall accordingly, thus realizing the raising and lowering of the greenhouse. During the raising and lowering of the greenhouse roof 12, the space between the greenhouse roof 12 and the greenhouse base 11 is covered by the sealing folding component 13, ensuring the internal sealing of the greenhouse body and meeting the needs of normal planting. This lifting greenhouse is designed with a sealing folding component to ensure that the internal sealing environment of the greenhouse body can be maintained during the raising and lowering process, thereby ensuring that the temperature and humidity of the planting environment are not affected by the external environment when the greenhouse roof is raised or lowered. Furthermore, the use of a chain to complete the raising and lowering process provides higher stability and makes it easier to control the drive component.

[0037] refer to Figure 3 , Figure 4 and Figure 6 As shown, the transmission unit 22 includes a first transmission chain 221 arranged in a ring and connected to the lifting frame 23. The inner ring of the first transmission chain 221 is meshed with a first driving sprocket 222 and a first driven sprocket 223. A driving shaft 224 and a driven shaft 225 are respectively connected and installed at the shaft center of the first driving sprocket 222 and the first driven sprocket 223. The driving shaft 224 and the driven shaft 225 are respectively installed on the fixed column 21 in an up-down position. The driving shaft 224 is connected to the drive mechanism 3. The driving shaft 224 and the driven shaft 225 are rotatably connected to the fixed column 21. The use of a transmission unit has many advantages. Compared with belt drive and pulley block drive, there is no elastic slippage or slippage. The average transmission ratio is accurate, the operation is reliable, and the efficiency is high. It can transmit large power, has strong overload capacity, and has a small transmission size under the same working conditions. It requires less tension force and has less pressure on the shaft. It can work in harsh environments such as high temperature, humidity, dust, and pollution.

[0038] refer to Figure 3 , Figure 4 and Figure 6As shown, at least four sets of transmission units 22 are arranged in a rectangular pattern corresponding to four fixed columns 21, namely a first transmission unit, a second transmission unit, a third transmission unit, and a fourth transmission unit. The first drive sprockets 222 of the first and third transmission units are coaxially connected, and the first driven sprockets 223 of the first and third transmission units are coaxially connected. The first drive sprockets 222 of the second and fourth transmission units are coaxially connected, and the first driven sprockets 223 of the second and fourth transmission units are coaxially connected. A second drive sprocket 226 is provided on the drive shaft 224 of the first transmission unit, and a second driven sprocket 227 is provided on the drive shaft 224 of the second transmission unit. A second transmission chain 228 is connected between the second drive sprocket 226 and the second driven sprocket 227. The first, second, third, and fourth transmission units are arranged in a rectangular pattern with four fixed columns 21. The first and third transmission units are coaxially connected to achieve synchronous rotation. The second transmission unit achieves synchronous rotation through the second driving sprocket 226, the second driven sprocket 227, and the second transmission chain 228. The fourth transmission unit and the second unit are coaxially connected to achieve synchronous rotation. Thus, the first, second, third, and fourth transmission units form an overall synchronous transmission structure. In this way, only the driving shaft 224 of the first transmission unit needs to be connected to the drive mechanism 3 to complete the overall synchronous transmission operation, which drives the lifting frame 23 to lift and lower, thereby enabling the roof 12 to meet the lifting and lowering requirements. The entire transmission structure only requires one drive mechanism 3, ensuring the synchronicity of the overall transmission and enabling all positions of the lifting frame 23 to lift and lower synchronously, ensuring the smoothness and efficiency of the lifting and lowering process of the roof 12.

[0039] refer to Figure 3 , Figure 4 and Figure 5 As shown, the first drive sprocket 222 is provided with a locking groove 2221, and a locking piece 2222 is provided corresponding to the locking groove 2221. A drive electric cylinder is connected to the locking piece 2222, and the drive electric cylinder is fixedly installed on the drive shaft 224. When the drive mechanism stops, the chain stops at the current position, thereby locking the roof. At the same time, the simplest locking structure of the transmission unit 22 is formed by the locking piece 2222 and the locking groove 2221, which is easy to operate and has a stable structure. When the drive mechanism 3 stops working, it assists in locking the transmission unit 22, preventing the transmission unit 22 from slipping or loosening in the non-transmission state.

[0040] refer to Figure 6As shown, a guide groove 211 is provided on the fixed column 21, and the transmission unit 22 is embedded in the guide groove 211. Providing the guide groove 211 on the fixed column 21 serves two purposes: firstly, it guides and limits the direction of lifting; secondly, it effectively reduces the exposure of the transmission unit 22 outdoors, preventing environmental corrosion and extending the service life of the transmission unit 22.

[0041] refer to Figure 7 As shown, the sealed folding assembly 13 includes a foldable canopy 131 that forms a sealed environment and multiple sets of scissor blade mechanisms 132 on the inner side of the canopy for stable support of the canopy 131. The two side edges of the canopy 131 are connected to the lifting frame 23 and the greenhouse base 11 respectively. The two end edges of each set of scissor blade mechanisms 132 are hinged to the lifting frame 23 and the greenhouse base 11 respectively. Each set of scissor blade mechanisms 132 consists of multiple sets of symmetrically distributed metal forks. The metal forks are cross-connected by pins to form an "X" shape similar to scissors. This arrangement is used to support the canopy 131 when the roof is raised, providing a fixed connection point for the canopy 131 to be folded and unfolded accordingly. It also serves as an attachment point for the canopy 131 to prevent it from being suspended, enhances the load-bearing capacity of the canopy 131, and prevents damage to the canopy from strong winds.

[0042] refer to Figure 6 As shown, the drive mechanism 3 includes a drive motor 31 connected to the active rotating shaft 224. The active rotating shaft 224 is driven to rotate clockwise or counterclockwise by a bidirectional rotating motor, thereby raising and lowering the canopy 12.

[0043] In one embodiment of this utility model, when the canopy 12 needs to be raised during operation, the drive motor 31 operates, driving the drive shaft 224 to rotate the first drive sprocket 222 and the second drive sprocket 226 located on the drive shaft 224 of the first transmission unit. Through the second transmission chain, the first driven sprocket 223 and the second driven sprocket 227 are driven to rotate synchronously, so that the first transmission chain 221 of the first transmission unit, the second transmission unit, the third transmission unit and the fourth transmission unit rotate simultaneously, driving the lifting frame 23 to lift the upper edge of the folded canopy 131. When the canopy 131 is unfolded to the required height, the drive motor is turned off, and the drive cylinder is started to lock the first drive sprocket 222.

[0044] refer to Figure 8As shown, the drive mechanism 3 includes an electric hoist 32, and the transmission unit 22 includes symmetrically arranged lifting columns 24 for support and a limiting guide rod 25 set on the lifting columns 24. The electric hoist 32 is installed at the top of the lifting columns 24, and the electric hoist 32 is provided with a hook. The lifting frame 23 is provided with a lifting ring 231 corresponding to the hook. When working, the electric hoist 32 is started, and the hook drives the lifting frame 23 to lift or lower to complete the raising or lowering of the roof 12.

[0045] refer to Figure 9 As shown, at least four lifting columns 24 are provided, and electric hoists 32 are installed on the lifting columns 24. Each electric hoist 32 is equipped with a set of lifting control boxes 33. The lifting control boxes 33 are connected in series. A main control box is installed on the shed body 1. The main control box is electrically connected to the lifting control boxes 33. The main control box synchronously controls all lifting control boxes 33 to control the synchronous lifting and lowering operation of each electric hoist 32.

[0046] Principle: The lifting control box 33 includes a box body, a main control box body, a current transformer, a current controller, and a voltage controller. The box body is made of hard aluminum alloy. The power supply is a three-phase power supply box. The three live wires of the power supply box are connected to the main control box body. A current transformer is installed on the outside of one of the live wires. The current controller and voltage controller are installed on the main control box body. The main control box has an ammeter, a voltmeter, and control buttons. The voltmeter is connected in parallel to two of the live wires between the power supply box and the main control box body via two wires. The ammeter is connected to the current transformer via a wire. The control buttons are connected to the main control box body, the current controller, and the voltage controller via data cables. In this scheme, each lifting control box 33 is connected in parallel to the main control box. The connection points of the main control box body, the current controller, the voltage controller, the current transformer, and the voltmeter connected in parallel to two of the live wires via two wires are all enclosed in the box body, protecting the safety of each sensing device, control device, and numerous contact points and solder joints. The data cable between the main body of the electrical control box and the controller is connected by a three-prong adapter. The three-prong adapter includes a source connector, a three-prong head, a first output terminal, a second output terminal, and a third output terminal. The controller is connected to one of the first output terminal, the second output terminal, and the third output terminal via the data cable. The adapter ensures that the controller can be detached and installed, and the other terminal can be used when one of the output lines is damaged.

[0047] In another embodiment of this utility model, an electric hoist 32 is used as the lifting drive during operation. The hook and pulley mechanism of the electric hoist 32 can realize automatic lifting operation. Moreover, the electric hoist 32 can control the lifting height at any time and self-lock. The structure is simple and easy to operate.

[0048] 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 way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. An agricultural lifting greenhouse, characterized in that: It includes the greenhouse body (1) that forms the greenhouse support frame, the lifting mechanism (2) for raising and lowering the greenhouse, and the drive mechanism (3) for driving the lifting mechanism (2) to operate; The shed (1) includes a shed base (11) fixed to the ground, a liftable shed roof (12), and a sealing folding assembly (13) for sealing and connecting the shed roof (12) and the shed base (11); The lifting mechanism (2) includes a fixed column (21) for guiding support, a transmission unit (22) for driving the roof (12) to rise and fall, and a lifting frame (23) for connecting the roof (12) and the transmission unit (22); During operation, the drive mechanism (3) drives the transmission unit (22) to move and drive the roof (12) to complete the raising and lowering operations. The sealing and folding assembly (13) completes the unfolding and folding operations by moving with the roof (12) to maintain the sealed environment inside the greenhouse.

2. The agricultural lifting greenhouse according to claim 1, characterized in that: The transmission unit (22) includes a first transmission chain (221) arranged in a ring and connected to the lifting frame (23). The inner ring of the first transmission chain (221) is meshed with a first driving sprocket (222) and a first driven sprocket (223). The shafts of the first driving sprocket (222) and the first driven sprocket (223) are respectively connected and installed with a driving shaft (224) and a driven shaft (225). The driving shaft (224) and the driven shaft (225) are respectively installed on the fixed column (21) in an up-down position. The driving shaft (224) is connected to the drive mechanism (3).

3. The agricultural lifting greenhouse according to claim 2, characterized in that: At least four sets of transmission units (22) are arranged in a rectangular shape corresponding to four fixed columns (21), namely the first transmission unit, the second transmission unit, the third transmission unit and the fourth transmission unit. The first drive sprocket (222) of the first transmission unit and the third transmission unit are coaxially connected. The first driven sprocket (223) of the first transmission unit and the third transmission unit are coaxially connected. The first drive sprocket (222) of the second transmission unit and the fourth transmission unit are coaxially connected. The first driven sprocket (223) of the second transmission unit and the fourth transmission unit are coaxially connected. The first drive shaft (224) of the first transmission unit is provided with a second drive sprocket (226). The drive shaft (224) of the second transmission unit is provided with a second driven sprocket (227). A second transmission chain (228) is connected between the second drive sprocket (226) and the second driven sprocket (227).

4. The agricultural lifting greenhouse according to claim 2, characterized in that: The first drive sprocket (222) is provided with a locking groove (2221), and a locking piece (2222) is provided corresponding to the locking groove (2221). A drive electric cylinder is connected to the locking piece (2222), and the drive electric cylinder is fixedly installed on the drive shaft (224).

5. The agricultural lifting greenhouse according to claim 1, characterized in that: The fixed column (21) is provided with a guide groove (211), and the transmission unit (22) is embedded in the guide groove (211).

6. The agricultural lifting greenhouse according to claim 2, characterized in that: The sealed folding assembly (13) includes a foldable canopy (131) that forms a sealed environment and multiple sets of scissor blade mechanisms (132) on the inner side of the canopy for stabilizing and supporting the canopy (131). The two side edges of the canopy (131) are connected to the lifting frame (23) and the greenhouse base (11) respectively. The two end edges of each set of scissor blade mechanisms (132) are hinged to the lifting frame (23) and the greenhouse base (11) respectively.

7. An agricultural lifting greenhouse according to claim 2, characterized in that: The drive mechanism (3) includes a drive motor (31) connected to the drive shaft (224).

8. An agricultural lifting greenhouse according to claim 1, characterized in that: The drive mechanism (3) includes an electric hoist (32), and the transmission unit (22) includes symmetrically arranged lifting columns (24) for support and a limiting guide rod (25) provided on the lifting column (24). The electric hoist (32) is installed on the top of the lifting column (24), and the electric hoist (32) is provided with a hook. The lifting frame (23) is provided with a lifting ring (231) corresponding to the hook. When working, start the electric hoist (32) to drive the hook to lift the frame (23) to raise or lower to complete the raising or lowering of the roof (12).

9. An agricultural lifting greenhouse according to claim 8, characterized in that: At least four lifting columns (24) are provided. Each lifting column (24) is equipped with an electric hoist (32). Each electric hoist (32) is equipped with a set of lifting control boxes (33). The lifting control boxes (33) are connected in series. The shed (1) is equipped with a main control box. The main control box is electrically connected to the lifting control boxes (33). The main control box synchronously controls all lifting control boxes (33) to control the synchronous lifting operation of each electric hoist (32).

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