Synchronous lifting greenhouse

Abstract

This invention relates to a synchronously lifting shed, comprising a frame and a roof. The frame includes several columns and several lifting beams fixedly connected to the columns. The roof is suspended from the frame by multiple sets of lifting drive mechanisms, each set of which is independently set and corresponds to a lifting point for the roof. The advantages of this invention are: by using a sensor and a sensing object to form a physical height detection benchmark, the sensor directly identifies the sensing object to obtain the actual absolute height of each lifting point. Combined with a control system, it achieves segmented leveling and lifting operations where each lifting point is in position and ready to move, and then synchronously resumes after all lifting points have been detected. This eliminates the traditional purely mechanical passive synchronization method and the detection and correction mode that indirectly measures the wire rope travel using encoders and pull-wire sensors. It effectively avoids cumulative measurement errors caused by wire rope deformation, multi-layer winding deviation, and pulley transmission losses, enabling precise alignment and calibration of the height of each lifting point.

Description

Technical Field

[0001] This invention belongs to the field of greenhouse technology, specifically relating to a synchronously lifting greenhouse. Background Technology

[0002] The height-adjustable greenhouse can be adjusted as needed, adapting to the entire growth cycle of crops and various modern agricultural planting models. It is an important upgrade to the fixed greenhouse and has outstanding application value.

[0003] Currently, most lifting sheds adopt a multi-point hoisting structure, relying on the assembly precision of the shed body to achieve synchronous lifting. However, due to factors such as transmission differences, wire rope deformation, and assembly deviations, lifting errors accumulate continuously, easily leading to problems like misaligned lifting points and skewed roofs. To compensate for this deficiency, the industry has adopted an electrical synchronization improvement scheme. This scheme uses a motor encoder and drum sensor to collect the winch's rotation parameters, calculating the wire rope's winding and unwinding stroke, and indirectly estimating the lifting height of the lifting points. However, due to uneven tension of the multi-layered wire rope winding, load deformation, and pulley transmission losses, there is a deviation between the theoretically calculated rope length and the actual lifting height. Furthermore, this error accumulates continuously with equipment operation, making it impossible to achieve precise leveling and calibration of each lifting point, and thus failing to solve the problems of asynchronous lifting and skewed balance of the shed body.

[0004] In summary, existing height-adjustable greenhouses rely on indirect calculation of the wire rope travel to achieve height correction, which is easily affected by working conditions, resulting in serious error accumulation and defects such as low synchronization accuracy of lifting and lowering and easy tilting of the greenhouse body. Summary of the Invention

[0005] This invention provides a synchronous lifting canopy, which can solve the problem in the prior art that relies on indirect calculation of the wire rope stroke to achieve height correction, and is easily affected by working conditions.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a synchronous lifting shed, including a shed frame and a shed roof, wherein the shed frame includes several columns and several hoisting beams fixedly connected to the columns, and the shed roof is hoisted on the shed frame by multiple sets of hoisting drive mechanisms, each set of hoisting drive mechanisms is independently set and respectively forms a shed roof lifting point, and also includes a synchronous detection component and a control system; The synchronous detection component includes multiple sets of sensors and sensing objects that cooperate with each other and are set at different lifting points on the roof. The sensors and sensing objects in the same set are respectively assembled at the relative matching positions of the column and the roof. Each set of sensors and sensing objects forms multiple alignment detection points along the height direction of the column. The control system is used to perform the following steps: During the lifting and lowering of the roof, the sensor at any lifting point identifies the corresponding object and determines that the positioning is complete, and sends a positioning signal to the control system. After receiving any positioning signal, the control system controls the corresponding lifting drive mechanism to stop and wait. When all lifting points have completed positioning and sent positioning signals, the control system controls all lifting drive mechanisms to start synchronously and carry out the next section lifting operation in a unified manner, and cyclically completes the full-process segmented leveling work.

[0007] Preferably, the sensors are installed one-to-one at each lifting point on the roof, and several groups of sensors are arranged at intervals along the height of the columns.

[0008] Preferably, the sensing object is a weather-resistant, high-contrast reflective color mark, and the sensor is a color recognition sensor. The two are paired to form a non-contact position detection structure.

[0009] Preferably, the sensor is installed on a column or ceiling via a detachable fixing structure, which is either a bolt-fastening structure or a snap-fit ​​adhesive structure.

[0010] Preferably, the control system is equipped with an outdoor waterproof distribution box, which integrates a PLC controller, a frequency converter drive module and a signal receiving module. All hoisting drive mechanisms and sensors are electrically connected to the distribution box to achieve centralized control.

[0011] Preferably, it also includes a liftable wall and a wall hoisting mechanism; the liftable wall is arranged between adjacent columns; the wall hoisting mechanism is fixedly installed on the scaffold and is used to adjust the height of the liftable wall individually.

[0012] Preferably, the liftable wall includes a wall body and constraint sleeves fixedly connected to both ends of the wall body; the constraint sleeves are sleeved on the outside of the column to constrain the horizontal displacement of the wall body.

[0013] Preferably, the inner side of the constraint sleeve is provided with a wear-resistant lining.

[0014] Compared to existing technologies, this invention establishes a physical height detection benchmark through the corresponding cooperation of sensing objects and sensors. It uses sensors to directly identify sensing objects to obtain the actual absolute height of each lifting point. In conjunction with the control system, it realizes segmented leveling and lifting operations with single lifting point in place and standby, and synchronous continuation after all lifting points have been detected. It abandons the traditional purely mechanical passive synchronization method and the detection and correction mode that indirectly calculates the wire rope stroke through encoders and pull wire sensors. It effectively avoids the cumulative measurement errors caused by wire rope deformation, multi-layer winding deviation, and pulley transmission wear. It can achieve accurate alignment and calibration of the height of each lifting point, solve the problems of asynchronous lifting of multiple lifting points and skewed roof, and significantly improve the synchronization accuracy and operational stability of roof lifting. Attached Figure Description

[0015] Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a schematic diagram of the second perspective structure of the present invention; Figure 3 This is a schematic diagram of the third-view structure of the present invention; Figure 4 This is a schematic diagram of the roof structure of the present invention; Figure 5 This is a schematic diagram of a structure according to an embodiment of the present invention; Figure 6 This is a structural schematic diagram of the liftable wall of the present invention; Figure 7 This is a schematic diagram illustrating the practical application of the lifting canopy of the present invention.

[0016] In the diagram: 1. Shed; 101. Column; 102. Lifting beam; 2. Shed roof; 3. Lifting drive mechanism; 4. Sensor; 5. Sensor; 6. Control system; 7. Liftable wall; 701. Wall body; 702. Restraint sleeve; 8. Wall lifting mechanism. Detailed Implementation

[0017] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0018] like Figures 1 to 4 As shown, the present invention provides a synchronous lifting shed, including a shed frame 1 and a shed roof 2. The shed frame 1 includes several columns 101 and several hoisting beams 102 fixedly connected to the columns 101. The shed roof 2 is hoisted onto the shed frame 1 by multiple sets of hoisting drive mechanisms 3. Each set of hoisting drive mechanisms 3 is independently set and forms a shed roof lifting point. The invention also includes a synchronous detection component and a control system 6.

[0019] The synchronous detection component includes multiple sets of sensors 5 and sensing objects 4 that cooperate with each other, set at different lifting points on the roof. The sensors 5 and sensing objects 4 in the same set are respectively assembled at the relative matching positions of the column 101 and the roof 2. Each set of sensors 5 and sensing objects 4 forms multiple alignment detection points along the height direction of the column 101. The control system is used to perform the following steps: During the lifting and lowering of the roof 2, the sensor 5 of any of the roof lifting points identifies the corresponding sensing object 4 and determines that the positioning is complete, and sends a positioning signal to the control system. After receiving any of the positioning signals, the control system controls the corresponding hoisting drive mechanism 3 to stop and wait. When all the roof lifting points have completed positioning and sent positioning signals, the control system 6 controls all hoisting drive mechanisms 3 to start synchronously and carry out the next section lifting operation in a unified manner, and cyclically completes the full-process segmented leveling work.

[0020] Specifically, the shed frame 1 serves as the main load-bearing framework of the entire greenhouse, primarily supporting the installation loads of the roof 2 and various drive and detection components, providing stable support for the lifting and lowering of the shed frame 2. Hot-dip galvanized square steel or angle steel profiles are commonly used, offering rust resistance and durability against outdoor sun and rain. During installation, columns 101 should be evenly distributed according to the greenhouse span to ensure uniform stress distribution across the entire frame. It is important to note that anti-corrosion treatment must be applied to welded or bolted connections of the frame. Columns 101 are the vertical load-bearing components of the shed frame 1, supporting the load of the upper hoisting beam 102 and serving as an optional installation base for the sensors 4. Hot-dip galvanized rectangular steel pipes are preferred due to their strong bending and deformation resistance. During installation, the bottom of the columns 101 is pre-embedded in the concrete foundation. It is crucial to ensure the verticality of the columns during installation to prevent jamming during later lifting and lowering; the column cross-section can utilize either round or square tubing, two commonly used structural forms. The lifting beam 102 is horizontally mounted on top of multiple columns 101 to install and fix the various lifting drive mechanisms 3, thereby distributing the load laterally. Thickened galvanized steel is selected as the material. During installation, the lifting beam 102 is rigidly locked to the columns 101 with bolts.

[0021] Roof 2 is the greenhouse roof enclosure structure, suspended and raised as a whole by the hoisting drive mechanism 3, and also serves as an optional installation carrier for sensor 5. The main frame is a galvanized steel frame, covered with agricultural insulation film or light-transmitting panels on the outside. During installation, all hoisting points are evenly distributed on the surface of roof 2. It should be noted that the overall flatness of the roof after assembly must meet the standards to avoid localized imbalances.

[0022] The hoisting drive mechanism 3 is the power actuator for lifting the roof 2. It relies on the winding and unwinding of the chain rope to achieve single-point lifting action, and each group is independently controlled. The whole machine consists of a variable frequency motor, a winch drum, and chain ropes. The main frame is made of cast iron and carbon steel, and an electric hoist can also be used for hoisting. During setup, each chain rope is fixed to the corresponding lifting point position on the hoisting beam 102. It should be noted that the chain rope selection must match the load-bearing capacity of the lifting point, and a safety margin must be reserved.

[0023] The sensing element 4 and sensor 5 are paired to form a position detection reference, and are respectively installed at the relative positions of the column 101 and the roof 2. Materials suitable for outdoor use are sufficient. During installation, they are arranged on corresponding components according to the segmented lifting requirements of the shed. It should be noted that the assembly position must be aligned with the optical path of the paired sensor. Sensor 5 is used to sense and cooperate with sensing element 4, collecting the positioning signal and transmitting it to the control system 6. Industrial general-purpose detection sensing elements are selected, suitable for outdoor use. During installation, they are arranged corresponding to the installation position of sensing element 4. It should be noted that the installation position allows for fine-tuning to facilitate on-site alignment and debugging. The spacing between adjacent alignment detection points is determined according to the single lifting stroke of the shed; specifically, the spacing between adjacent alignment detection points is equal to the single lifting height.

[0024] The control system 6 centrally receives signals from each sensor and controls the start and stop of all hoisting drive mechanisms 3 according to preset logic. It consists of a distribution box, PLC, and frequency converter module, all using commercially available standard industrial control components. The entire control logic can be implemented based on existing mature electrical control technology. A waterproof distribution box should be fixed nearby during installation. It is important to note that the box should be properly protected against rain and dust, and strong and weak current lines should be laid separately. Specifically, the control logic can be as follows: When sensor 5 at any hoisting point detects the corresponding object 4, sensor 5 sends a signal, and the corresponding relay changes from a normally closed energized state to a normally open de-energized state, causing the corresponding hoisting drive mechanism 3 to be de-energized and stop. Once all sensors 5 at all hoisting points have detected the corresponding object 4 and all relays have changed to a normally open de-energized state, all relays synchronously and uniformly change back to a normally closed energized state to continue the next lifting operation.

[0025] In practical use, the canopy 1, consisting of columns 101 and hoisting beams 102, serves as the installation base. After the control system 6 issues a start command, each independent hoisting drive mechanism 3 works synchronously, simultaneously pulling the suspended canopy 2 to rise and fall smoothly along the height direction of the columns 101. During the lifting and lowering of the canopy 2, when the sensor 5 at any hoisting point detects the paired sensing object 4, it immediately transmits a positioning electrical signal to the control system 6. Upon receiving the signal, the control system 6 locks the corresponding hoisting drive mechanism 3, pausing its operation and waiting for the remaining hoisting points. The remaining hoisting drive mechanisms 3 that have not yet completed positioning continue to drive the corresponding parts of the canopy 2 to move. Until all the sensors 5 at all hoisting points have identified the paired sensing object 4 and transmitted the positioning signal, the control system 6 uniformly drives all the hoisting drive mechanisms 3 to start synchronously again, continuing the next stage of lifting and lowering operations. This process is repeated, and the overall lifting and leveling operation of the canopy 2 is completed in segments by relying on point positioning.

[0026] like Figures 1 to 4As shown, in order to achieve a standardized fixed-point detection layout and improve the shortcomings of traditional indirect ranging error accumulation and insufficient synchronization accuracy, preferably, the sensors 5 are installed one-to-one at each lifting point of the canopy 2, and several groups of sensors 4 are arranged at intervals along the height direction of the columns.

[0027] Specifically, the sensors are uniformly arranged at the two suspension points on the roof, and the sensing objects 4 are vertically arranged on the columns 101. They move with the roof to achieve follow-up detection, and can directly collect the actual height position of each suspension point in real time. By relying on physical marks, the calculation deviation caused by the encoder indirect conversion of the stroke is eliminated, and the actual positioning condition of each suspension point is accurately captured. From the hardware layout, the reliability of segmented start-stop control is guaranteed, and the synchronization of the roof lifting is improved. Compared with the solution of densely deploying sensors on the entire height of the columns and placing sensing objects on the roof, this solution only requires sensors to be equipped at the suspension points, which greatly reduces the number of sensors used and significantly reduces the cost of component procurement and wiring.

[0028] In order to overcome the problem of synchronous loss of control caused by the susceptibility of traditional sensors to environmental interference and recognition failure, preferably, the sensing object 4 is a weather-resistant high-contrast reflective color mark, and the sensor 5 is a color recognition sensor. The two are paired to form a non-contact position detection structure.

[0029] Specifically, sensor 4 combines weather resistance with high-contrast reflectivity. Its weather resistance can withstand outdoor sun and rain, as well as ultraviolet radiation, delaying aging and failure. Its high-contrast reflective structure can improve recognition in complex outdoor environments such as strong light and rain. Non-contact detection has no mechanical friction wear and tear, and the detection components will not wear down due to long-term lifting and lowering, greatly reducing the probability of false triggering and missed detection. It continuously ensures the accuracy of data collection at each hanging point and is not prone to accuracy decay over long-term use, reducing the frequency of later maintenance.

[0030] Sensor 4 utilizes its high-contrast reflective properties in conjunction with the optical recognition of sensor 5 to form a stable recognition benchmark. Its weather resistance allows it to adapt to varying outdoor climates. It is made of weather-resistant, high-contrast reflective substrate. When setting it up, the surface should face outwards, directly towards the sensor's detection direction. It is important to avoid prolonged soil accumulation that could obstruct the reflective surface. Sensor 5 employs a color-recognition sensing element, relying on optical recognition of color marks and reflective characteristics to achieve contactless position acquisition. It uses industrial-grade photoelectric color mark devices. A small range of angle adjustment space is allowed during setup. It is important to avoid direct contact between the sensor lens and dripping water from the enclosure.

[0031] To address the drawbacks of the inability to adjust the position of the marker, the difficulty in replacing damaged markers leading to inconvenient calibration, and the high cost of correction, the sensor 4 is preferably installed on the column 101 or the roof 2 via a detachable fixing structure, which is either a bolt fastening structure or a snap-on adhesive structure.

[0032] Specifically, the detachable structure allows for easy adjustment of the sensor 4's installation height according to actual usage needs. When the sensor ages or breaks, it can be individually disassembled and replaced without damaging the support column 101 or the roof 2's base structure. This facilitates on-site debugging and calibration of the segmented lifting height, reducing modification and maintenance costs. The sensor 4's detachable structure allows for disassembly, relocation, and flexible changes to its positioning point. The selected material is a rigid marker block suitable for outdoor use. Installation points can be flexibly selected based on debugging requirements during setup. It is important to ensure that the sensor 4 is firmly attached to the mounting surface after installation.

[0033] like Figures 1 to 3 As shown, in order to improve the shortcomings of existing technologies such as poor protection of scattered wiring, susceptibility to moisture damage to outdoor electrical control systems, and poor system stability, the control system 6 is preferably equipped with an outdoor waterproof distribution box. The distribution box integrates a PLC controller, a frequency converter drive module, and a signal receiving module. All hoisting drive mechanisms and sensors are electrically connected to the distribution box to achieve centralized control.

[0034] Specifically, all kinds of control modules are centrally stored inside the waterproof distribution box, which provides dust and waterproof protection for PLC and frequency converter drive modules. It is not easy to get damp and short-circuit in the open environment. The centralized layout of the wiring facilitates unified inspection and maintenance, simplifies the wiring layout of the whole machine, improves the operational stability of the entire control system, and reduces the risk of shed tilting caused by electrical faults.

[0035] The outdoor waterproof distribution box serves as the integrated installation carrier for the six electrical components of the control system, providing protection and centralized wiring. It is constructed from outdoor flame-retardant and waterproof plastic or cold-rolled steel plate with powder coating. During installation, it is fixed to an unused column 101 on the scaffolding 1. It is important to ensure that the cable outlets within the box are properly sealed for waterproofing. The PLC handles logic operations and signal transmission / reception, the frequency converter drive module independently controls the start and stop of each hoisting drive mechanism 3, and the signal receiving module aggregates the positioning signals transmitted from the sensors 5; all three utilize standard, commercially available industrial control components. During installation, strong and weak current lines are arranged in separate zones within the distribution box. It is important to ensure that ventilation gaps are provided between the modules.

[0036] like Figures 5 to 6 As shown, in order to compensate for the shortcomings of traditional greenhouse walls being fixed and unadjustable and unable to optimize the planting environment inside the greenhouse by adjusting the height of the greenhouse roof, preferably, it also includes a liftable wall 7 and a wall hoisting mechanism 8; the liftable wall 7 is set between adjacent columns 101; the wall hoisting mechanism 8 is fixedly installed on the greenhouse frame 1 and is used to adjust the height of the liftable wall 7 individually.

[0037] Specifically, the height-adjustable wall 7 can be independently raised and lowered by the wall hoisting mechanism 8, and can change the enclosure height synchronously with the rise and fall of the greenhouse roof 2, flexibly adjusting the greenhouse ventilation area, adapting to the environmental needs of different crops at different growth stages, and expanding the types of crops that can be planted in the greenhouse.

[0038] The liftable wall 7 serves as the side enclosure structure of the greenhouse, separating the interior and exterior spaces and allowing for vertical lifting. The main frame is made of galvanized steel, and the enclosure surface is fitted with a greenhouse membrane or skylight. It is installed between two adjacent uprights 101. It is important to ensure that the overall dimensions of the wall match the spacing between the uprights. The wall hoisting mechanism 8 is fixed to the greenhouse frame 1 and independently pulls the liftable wall 7 to raise and lower it. It uses a matching small winch drive assembly. During installation, it is fixed to the hoisting beam 102 above the corresponding wall. It is important to ensure that the hoisting points are evenly distributed to guarantee smooth wall lifting and lowering.

[0039] like Figure 6 As shown, in order to solve the problem of left and right swaying and deviation jamming when the lifting wall is raised and lowered, preferably, the lifting wall 7 includes a wall body 701 and a constraint sleeve 702 fixedly connected to both ends of the wall body 701; the constraint sleeve 702 is sleeved on the outside of the column 101 and is used to constrain the horizontal displacement of the wall body 701.

[0040] Specifically, the constraint sleeve 702 is sleeved on the outside of the column 101 to form a lateral limiting constraint on the wall 701. During the lifting and lowering process, it restricts the left and right movement and offset of the wall, ensuring that the wall 701 moves vertically and smoothly along the column 101, avoiding the wall from tilting and getting stuck, and extending the service life of the wall.

[0041] The wall 701 forms the main side enclosure, achieving a sealed enclosure. It uses a steel frame combined with agricultural enclosure panels. During installation, both ends are securely connected to the restraint sleeve 702. It should be noted that the overall flatness of the wall 701 meets the standards. The restraint sleeve 702, fitted onto the column 101, achieves horizontal limitation and guides the vertical movement of the wall 701. It is made of galvanized steel sheet, bent into shape. During installation, the inner diameter of the sleeve hole is slightly larger than the outer diameter of the column 101. It should be noted that a small gap is left between the sleeve and the column, and the width of the column fitted by the sleeve should be controlled within a reasonable range to ensure the restraint effect without obstructing the sensor 4 installed on the column.

[0042] In order to overcome the problem of severe long-term friction and wear between the liftable wall and the column, and the increased lifting resistance causing the wall to jam during lifting, preferably, the inner side of the constraint sleeve 702 is provided with a wear-resistant lining.

[0043] Specifically, the wear-resistant lining isolates the constraint sleeve 702 from direct metal-to-metal friction with the column 101, reducing sliding resistance during lifting, decreasing wear and tear on the column and sleeve, reducing friction noise, ensuring smooth lifting even after long-term operation, reducing the frequency of parts replacement, and saving on maintenance costs. The wear-resistant lining is located on the inner wall of the constraint sleeve 702, serving to reduce wear and provide cushioning protection. Commonly used materials include nylon, polyurethane, and polytetrafluoroethylene (PTFE). During installation, it is laid and fixed integrally against the inner wall of the sleeve. It should be noted that there are no protrusions at the joints of the lining to prevent scratching the outer wall of the column 101.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A synchronous lifting canopy, comprising a canopy frame and a canopy roof, wherein the canopy frame includes a plurality of columns and a plurality of lifting beams fixedly connected to the columns, and the canopy roof is suspended on the canopy frame by multiple sets of lifting drive mechanisms, each set of lifting drive mechanisms being independently set and correspondingly forming a canopy roof lifting point, characterized in that: It also includes synchronous detection components and control systems; The synchronous detection component includes multiple sets of sensors and sensing objects that cooperate with each other and are set at different lifting points on the roof. The sensors and sensing objects in the same set are respectively assembled at the relative matching positions of the column and the roof. Each set of sensors and sensing objects forms multiple alignment detection points along the height direction of the column. The control system is used to perform the following steps: During the lifting and lowering of the roof, the sensor at any of the roof lifting points identifies the corresponding object and determines that the positioning is complete, and sends a positioning signal to the control system. After receiving any of the positioning signals, the control system controls the corresponding hoisting drive mechanism to stop and wait. When all the roof lifting points have completed positioning and sent positioning signals, the control system controls all hoisting drive mechanisms to start synchronously and carry out the next section lifting operation in a unified manner, and cyclically completes the full-process segmented leveling work.

2. The synchronous lifting greenhouse according to claim 1, characterized in that: The sensors are installed one-to-one with each lifting point on the roof, and several groups of sensors are arranged at intervals along the height of the columns.

3. The synchronous lifting greenhouse according to claim 2, characterized in that: The sensing object is a weather-resistant, high-contrast reflective color mark, and the sensor is a color recognition sensor. The two are paired to form a non-contact position detection structure.

4. The synchronous lifting greenhouse according to claim 1, characterized in that: The sensor is installed on a column or roof via a detachable fixing structure, which can be a bolt-fastening structure or a snap-on adhesive structure.

5. The synchronous lifting greenhouse according to claim 1, characterized in that: The control system is equipped with an outdoor waterproof distribution box, which integrates a PLC controller, a frequency converter drive module, and a signal receiving module. All hoisting drive mechanisms and sensors are electrically connected to the distribution box to achieve centralized control.

6. The synchronous lifting greenhouse according to claim 1, characterized in that: It also includes a liftable wall and a wall hoisting mechanism; the liftable wall is set between adjacent columns; the wall hoisting mechanism is fixedly installed on the scaffold and is used to adjust the height of the liftable wall individually.

7. The synchronous lifting greenhouse according to claim 6, characterized in that: The liftable wall includes a wall body and constraint sleeves fixedly connected to both ends of the wall body; the constraint sleeves are sleeved on the outside of the column to constrain the horizontal displacement of the wall body.

8. The synchronous lifting greenhouse according to claim 7, characterized in that: The inner side of the constraint sleeve is provided with a wear-resistant lining.

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