A solar curing shed for a precast concrete beam and a curing control method thereof

Abstract

The application discloses a kind of concrete precast beam solar maintenance shed and its maintenance control method, it is related to concrete maintenance technical field, including maintenance shed main part, the maintenance shed main part is by shed frame and first tarpaulin constitute, first tarpaulin outside is provided with second tarpaulin, and air chamber is formed between second tarpaulin and first tarpaulin;The top of shed frame is provided with solar panel, and the solar panel is electrically connected with battery, and the first tarpaulin is provided with a plurality of first ventilation pipe, and a plurality of first ventilation pipe is connected with hot air blower, solar panel, battery and hot air blower are all located outside second tarpaulin, and hot air blower is electrically connected with battery;The application is by continuously humid hot air and cooperates spray component, forms high temperature, high humidity environment, and by hot gas into air chamber, so that maintenance shed forms heat preservation layer, prevents the invasion of outside cold air.

Description

Technical Field

[0001] This invention relates to the field of concrete curing technology, specifically to a solar curing shed for precast concrete beams and its curing control method. Background Technology

[0002] In the production process of precast concrete beams, the curing process has a crucial impact on their strength and durability. A suitable temperature and humidity environment is key to ensuring the quality of precast concrete beams. Currently, existing precast concrete beam curing sheds have several problems in use: on the one hand, the sheds are not well-sealed, allowing dry and cold air from the outside to easily penetrate through the gaps, resulting in large fluctuations in temperature and humidity inside the shed, which affects the curing effect of the concrete; Meanwhile, the existing insulation structure of the maintenance sheds has poor adjustment flexibility and cannot flexibly adjust the insulation layer according to changes in the external temperature, making it difficult to maximize the use of solar energy; the air chamber structure of some maintenance sheds lacks effective pressure restriction, which can easily cause the tarpaulin connection parts to be overstretched and crack due to excessive pressure, thus affecting the insulation effect; in addition, the internal space design of the maintenance sheds is unreasonable, with some areas being too large, which increases the energy consumption of the heating components, and the utilization efficiency of solar energy also needs to be improved, making it difficult to meet the energy demand during the maintenance process. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, this invention provides a solar-powered curing shed for precast concrete beams and a curing control method thereof.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows: A solar-powered curing shed for precast concrete beams is provided, comprising a main body of the shed, which is composed of a frame and a first tarpaulin. A second tarpaulin is provided outside the first tarpaulin, and an air chamber is formed between the second tarpaulin and the first tarpaulin. A solar panel is provided on the top of the frame, and the solar panel is electrically connected to a battery. Several first ventilation pipes are provided inside the first tarpaulin, and the several first ventilation pipes are connected to a hot air blower. The solar panel, the battery, and the hot air blower are all located outside the second tarpaulin, and the hot air blower is electrically connected to the battery. The bottom of the shed is laid with phase change energy storage concrete and electric storage concrete, with the electric storage concrete located below the phase change energy storage concrete; the phase change energy storage concrete layer and the curing shed together form a closed space; the electric storage concrete is electrically connected to the solar panels. The air inlet of the hot air blower is connected to a water tank, and an electric heating element is installed on the side wall of the water tank. The electric heating element is electrically connected to the battery. A water vapor outlet connected to the air inlet of the hot air blower is opened at the top of the water tank. An air inlet is provided at the bottom of the water tank, and a one-way valve is provided at the air inlet. The one-way valve allows air outside the water tank to enter the water tank through the one-way valve, but water in the water tank cannot flow out of the water tank through the one-way valve. The second tarpaulin is also equipped with a second ventilation pipe, which is connected to a hot air blower through a pipe. When the hot air blower is working, it fills the air chamber with hot air, forming a heat-insulating air bag between the first tarpaulin and the second tarpaulin. The first tarpaulin is also equipped with several one-way air valves, which allow the gas in the air chamber to enter the first tarpaulin, but the gas in the first tarpaulin cannot enter the air chamber.

[0005] By continuously blowing hot and humid air into the curing shed, a high-temperature and high-humidity environment can be created inside. The one-way valve on the first tarpaulin allows hot and humid air to be blown into the curing shed simultaneously through the first ventilation pipe and the one-way valve on the first tarpaulin. This reduces the airflow velocity in the first ventilation pipe and the one-way valve, preventing the hot and humid air from being directly blown onto the surface of the precast concrete beam and avoiding uneven temperature and humidity on the surface of the precast concrete beam.

[0006] Furthermore, the shed frame is a double-layer structure composed of two layers of mesh panels, with both the first and second tarpaulins located between the two layers of mesh panels.

[0007] The double-layer mesh structure effectively restricts the expansion of the air chamber, preventing excessive pressure inside the chamber, overstretching of the connection between the first and second tarpaulins, which could lead to cracking, accelerated airflow within the chamber, and failure to achieve insulation. Simultaneously, the double-layer mesh reinforces the frame, preventing strong winds from collapsing the curing shed and damaging the precast concrete beams.

[0008] Furthermore, the air chamber is equipped with a partition cloth, which separates the top and two sides of the curing shed into separate air chambers. Each air chamber is connected to a hot air blower, and a valve is installed between the hot air blower and each air chamber. The two ends of the curing shed are air inlet doors, and the air inlet doors are equipped with maintenance doors for staff to enter and exit.

[0009] The individual air chambers allow for flexible control over the presence and absence of insulation layers on each surface of the curing shed, enabling adjustments based on external temperature and maximizing the use of solar energy. Inflatable doors at both ends of the curing shed create air insulation layers for easy access by staff. During construction, both ends are designed to be on non-windward sides to prevent strong winds from damaging the inflatable doors.

[0010] Furthermore, the distance between the inner and outer mesh panels is controlled by scissor-type translation components on both sides and the top of the curing shed along its length; and the plane of the scissor-type translation components is perpendicular to the length of the curing shed; the scissor-type translation components are located in the air chamber.

[0011] The scissor-type translation component can adjust the distance between the inner and outer mesh panels, thus adjusting the size of the air chamber. This adjustment is based on the outside temperature and battery charge. When the outside temperature is high, the air chamber size is reduced, allowing solar heat to directly increase the temperature inside the curing shed through thermal radiation, thus encouraging the battery to store more charge for high power consumption in cold weather or at night. When the outside temperature is low, on cloudy days, or at night, the air chamber size is increased, effectively acting as an air insulation layer to insulate against the effects of low temperatures.

[0012] Furthermore, the scissor-type translation component includes a fixed frame, a movable frame, and an electric telescopic rod. Two scissor arms are symmetrically arranged between the fixed frame and the movable frame, and the plane of the scissor arms is perpendicular to the length direction of the maintenance shed. The scissor arms are composed of a first arm and a second arm that are hinged to each other. The first arms of the two scissor arms are connected and fixed by a vertical connecting rod. One end of the electric telescopic rod is hinged to the fixed frame, and the other end of the electric telescopic rod is hinged to the connecting rod. One end of the scissor arms is slidably engaged with the fixed frame and the movable frame, respectively. The electric telescopic rod is electrically connected to a battery.

[0013] Furthermore, the inner mesh panels of the two sides of the maintenance shed along its length are used as fixed mesh panels, while the outer mesh panels are used as movable mesh panels; the outer mesh panels of the top frame of the maintenance shed are used as fixed mesh panels, while the inner mesh panels are used as movable mesh panels.

[0014] The width of the curing shed is usually set according to the width of the precast beams, without needing to squeeze the space inwards, and it is necessary to leave a passage for staff to enter and observe. Therefore, the outer side panels of the curing shed along its length are used as movable panels. Inside the curing shed, more space is usually reserved above the precast beams to facilitate the use of equipment, but this increases the space inside the curing shed, thereby increasing the energy consumption of the hot air blower and electric heating components. The roof frame of the curing shed moves the inner side panels downwards, which does not affect the staff's access to the curing shed to check the concrete condition, and also reduces the space inside the curing shed, so that the electricity collected by the solar panels can cope with the energy consumption of the hot air blower and electric heating components.

[0015] Furthermore, the first ventilation pipe is located in the lower half of the maintenance shed, and an air outlet pipe is installed on the top of the maintenance shed. The air outlet pipe passes through the first and second tarpaulins to connect the inside and outside of the maintenance shed, and a valve is also installed inside the air outlet pipe.

[0016] Hot air rises, and the placement of the first ventilation pipe and the exhaust pipe allows the air inside the curing shed to quickly transition from dry and cold to humid and hot. Furthermore, the valve at the exhaust pipe reduces the escape velocity of the humid and hot air inside the curing shed.

[0017] Furthermore, a spraying system is installed inside the maintenance shed. The spraying system includes spray heads that are evenly spaced inside the maintenance shed. Each spray head is connected to a water pump, which is electrically connected to a storage battery. The water inlet of the water pump is connected to a water tank through a pipe.

[0018] Furthermore, it also includes a controller and temperature and humidity sensors installed inside the maintenance shed; the controller is electrically connected to the temperature sensor, humidity sensor, battery, electric heating assembly, hot air blower, electric telescopic pole, and water pump respectively; the controller performs electrical control on the electric heating assembly, hot air blower, electric telescopic pole, and water pump based on the sensing information from the temperature and humidity sensors, as well as the charging, discharging, and power loss information of the battery.

[0019] The present invention also provides a method for controlling the curing of precast concrete beams using the above-mentioned solar curing shed for precast concrete beams, specifically: by inflating the air chamber, an air insulation layer is formed between the first and second sheds to isolate the influence of external temperature on the curing shed, and humid hot air is continuously blown into the curing shed, in conjunction with the spraying component, so that the curing shed is in a high temperature and high humidity state. The shear-type translation component on the top of the curing shed can reduce the empty space above the precast concrete beams inside the curing shed, reduce the pressure on the hot air blower and electric heating components, reduce energy consumption, and meet energy consumption through solar panel storage. When the battery charging efficiency is high, i.e. in a sunny weather, the outside temperature of the maintenance shed is high. By controlling the retraction of the electric telescopic rod, the distance between the outer and inner mesh panels on the side of the maintenance shed is reduced, and there is no need to inflate the air chambers on the side of the maintenance shed. This allows the solar panels to collect solar energy while the sun directly heats the inside of the maintenance shed, reducing the power of the electric heating components and hot air blower. As a result, the battery can be fully charged during sunny days. When the battery charging efficiency is low, i.e. on cloudy days or when the temperature is low, the electric telescopic rod is extended to increase the distance between the outer and inner mesh panels on the side of the curing shed. High-temperature gas is continuously filled into the air chamber by a hot air blower, forming an air insulation layer in the air chamber. Excess high-temperature gas in the air chamber can be introduced into the curing shed to help maintain the temperature inside the curing shed to the required curing temperature. The air chamber acts as a buffer, and at the same time, humid and hot air is blown into the curing shed through the first ventilation pipe and the one-way air valve on the first tarpaulin. This reduces the airflow velocity in the first ventilation pipe and the one-way air valve, preventing humid and hot air from blowing directly onto the surface of the precast concrete beam and avoiding uneven temperature and humidity on the surface of the precast concrete beam.

[0020] The beneficial effects of this invention are as follows: This invention creates a high-temperature, high-humidity environment by continuously introducing humid and hot air and using a spray system. By introducing hot air into the air chamber, a heat-insulating layer is formed in the curing shed, preventing the intrusion of cold air from the outside.

[0021] The design incorporates a one-way valve and ventilation duct to reduce airflow velocity and prevent hot, humid air from directly blowing onto the beam surface, thus avoiding uneven temperature and humidity. Double-layer mesh panels limit air chamber expansion, preventing tarpaulin rupture and ensuring insulation performance. Individual air chambers and scissor-type sliding components allow for flexible adjustment of the insulation layer, adapting the chamber size to changes in external temperature, efficiently utilizing solar energy and reducing energy consumption.

[0022] A well-designed space layout reduces the volume of the greenhouse while reserving operating space, thus lowering energy consumption. Optimizing the layout of ventilation and exhaust pipes based on the characteristics of hot air flow, along with valves, accelerates air exchange and balances air pressure inside the greenhouse, further enhancing the maintenance effect and safety. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the canopy of the present invention; Figure 3 This is a cross-sectional view of the main body of the maintenance shed along its length. Figure 4 This is a schematic diagram of the internal structure of the air chamber; Figure 5 This is a schematic diagram of the three-dimensional structure of the scissor-type translation component; Among them, 1. First tarpaulin, 2. Second tarpaulin, 3. Air chamber, 4. Solar panel, 5. Storage battery, 6. First ventilation pipe, 7. Hot air blower, 8. Water tank, 9. Water vapor outlet, 10. Air inlet, 11. Second ventilation pipe, 12. One-way air valve, 13. Mesh panel, 14. Separating cloth, 15. Inflation door, 16. Inspection door, 17. Scissor-type sliding assembly, 18. Fixed frame, 19. Moving frame, 20. Electric telescopic rod, 21. Scissor arm, 22. Air outlet pipe; 23. Fixed mesh panel; 24. Moving mesh panel. Detailed Implementation

[0024] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0025] like Figures 1-5As shown, a solar-powered curing shed for precast concrete beams includes a main body of the curing shed, which is composed of a frame and a first tarpaulin 1. A second tarpaulin 2 is provided on the outside of the first tarpaulin 1, and an air chamber 3 is formed between the second tarpaulin 2 and the first tarpaulin 1. A solar panel 4 is provided on the top of the frame, and the solar panel 4 is electrically connected to a battery 5. Several first ventilation pipes 6 are provided inside the first tarpaulin 1, and the several first ventilation pipes 6 are connected to a hot air blower 7. The solar panel 4, the battery 5 and the hot air blower 7 are all located outside the second tarpaulin 2, and the hot air blower 7 is electrically connected to the battery 5. The bottom of the shed is laid with phase change energy storage concrete and electric storage concrete, with the electric storage concrete located below the phase change energy storage concrete; the phase change energy storage concrete layer and the curing shed together form a closed space; the electric storage concrete is electrically connected to the solar panel 4; the phase change energy storage concrete is prepared using the method disclosed in the prior art "CN105254233B A phase change energy storage concrete and its manufacturing method", and the electric storage concrete is prepared using the method disclosed in the prior art "CN113860816B A rechargeable, energy-storing and discharging concrete material and its preparation method".

[0026] The air inlet of the hot air blower 7 is also connected to a water tank 8, and an electric heating component is installed on the side wall of the water tank 8. The electric heating component is electrically connected to the battery 5. In specific implementation, the electric heating component can adopt conventional technical means such as heating wire or heating rod. A water vapor outlet 9 connected to the air inlet of the hot air blower 7 is opened at the top of the water tank 8. An air inlet 10 is provided at the bottom of the water tank 8, and a one-way valve is provided at the air inlet 10. The one-way valve allows air outside the water tank 8 to enter the water tank 8 through the one-way valve, but the water in the water tank 8 cannot flow out of the water tank 8 through the one-way valve. The second tarpaulin 2 is also equipped with a second ventilation pipe 11, which is connected to a hot air blower 7 via a pipe. When the hot air blower 7 is working, the air chamber 3 is filled with hot air, forming a heat-insulating airbag between the first tarpaulin 1 and the second tarpaulin 2. The first tarpaulin 1 is also equipped with several one-way air valves 12, which allow the gas in the air chamber 3 to enter the first tarpaulin 1, but the gas in the first tarpaulin 1 cannot enter the air chamber 3.

[0027] When the hot air blower 7 is working, a negative pressure state will be formed in the water tank 8. The air entering the water tank 8 through the air inlet 10 located at the bottom of the water tank 8 will pass through the water in the water tank 8, increasing the humidity of the air. In conjunction with the electric heating component, the air passing through the hot air blower 7 can have sufficient humidity, reducing the spray volume of the subsequent spray component and avoiding excessive spray volume, which would cause uneven humidity between the surface of the precast concrete beam located at the spray head and other surface locations.

[0028] The canopy is a double-layer structure consisting of two layers of mesh 13, with the first tarpaulin 1 and the second tarpaulin 2 located between the two layers of mesh 13.

[0029] The air chamber 3 is equipped with a partition cloth 14, which separates the top and two sides of the curing shed into individual air chambers 3. Each air chamber 3 is connected to a hot air blower 7, and a valve is installed between the hot air blower 7 and each air chamber 3. The two ends of the curing shed are inflatable doors 15, and the inflatable doors 15 have maintenance doors 16 for staff to enter and exit. The maintenance doors 16 are opened with windproof zippers.

[0030] The distance between the inner and outer mesh panels 13 is controlled by a scissor-type translation component 17 on both sides and the top of the curing shed along its length. The plane of the scissor-type translation component 17 is perpendicular to the length of the curing shed. The scissor-type translation component 17 is located within the air chamber 3. How the scissor-type translation component 17 controls the distance between the inner and outer mesh panels 13 is a conventional technique, and its working principle can be found in the working principle of the scissor lift; therefore, it will not be elaborated further.

[0031] The scissor-type translation component 17 includes a fixed frame 18, a movable frame 19, and an electric telescopic rod 20. Two scissor arms 21 are symmetrically arranged between the fixed frame 18 and the movable frame 19, and the plane of the scissor arms 21 is perpendicular to the length direction of the maintenance shed. The scissor arms 21 are composed of a first arm and a second arm that are hinged to each other. The first arms of the two scissor arms 21 are connected and fixed by a vertical connecting rod. One end of the electric telescopic rod 20 is hinged to the fixed frame 18, and the other end of the electric telescopic rod 20 is hinged to the connecting rod. One end of the scissor arms 21 is slidably engaged with the fixed frame 18 and the movable frame 19, respectively. The electric telescopic rod 20 is electrically connected to the battery 5.

[0032] The inner mesh 13 of the frame on both sides of the curing shed along its length serves as a fixed mesh 23, and the outer mesh 13 serves as a movable mesh 24; the outer mesh 13 of the frame on the top of the curing shed serves as a fixed mesh 23, and the inner mesh 13 serves as a movable mesh 24.

[0033] The first ventilation pipe 6 is located in the lower half of the curing shed, and an exhaust pipe 22 is installed on the top of the curing shed. The exhaust pipe 22 passes through the first tarpaulin 1 and the second tarpaulin 2, connecting the inside and outside of the curing shed. A valve is also installed inside the exhaust pipe 22. The valve is existing technology, and its specific structure refers to the valve structure in the existing technology "Valve Structure, Cap and Bottle CN201210537375.2".

[0034] The curing shed is also equipped with a spray system, which includes spray nozzles evenly spaced throughout the shed. Each spray nozzle is connected to a water pump, which is electrically connected to a battery 5. The water inlet of the pump is connected to a water tank 8 via a pipe. The connection and arrangement of the spray system are existing technologies and will not be described in detail. To avoid excessive components in the attached diagrams and causing confusion, the spray system is concealed. In practice, the spray nozzles can be flexibly arranged on the top and sides of the curing shed based on experience.

[0035] It also includes a controller and temperature and humidity sensors installed inside the curing shed. The controller is electrically connected to the temperature and humidity sensors, battery 5, electric heating assembly, hot air blower 7, electric telescopic pole 20, and water pump. The controller electrically controls the electric heating assembly, hot air blower 7, electric telescopic pole 20, and water pump based on the sensing information from the temperature and humidity sensors, as well as the charging, discharging, and power loss information of battery 5. The electrical control of the controller is a conventional technique that allows for flexible control based on actual conditions, so it will not be elaborated further. In specific implementation, when the power lines or air / water pipes of the electrical components need to pass through the first tarpaulin 1 or the second tarpaulin 2, the junctions between the lines or pipes and the tarpaulin are sealed with sealant.

[0036] The concrete precast beam curing control method of the above-mentioned concrete precast beam solar curing shed is as follows: by filling the air chamber 3 with air, an air insulation layer is formed between the first tarpaulin 1 and the second tarpaulin 2 to isolate the influence of the external temperature on the curing shed, and humid hot air is continuously blown into the curing shed. With the help of the spray component, the curing shed is kept in a state of high temperature, high humidity and high pressure. The shear-type translation component 17 on the top of the curing shed can reduce the empty space above the precast concrete beams inside the curing shed, reduce the pressure on the hot air blower 7 and the electric heating component, reduce energy consumption, and the energy consumption can be met by storing electricity through the solar panel 4. When the charging efficiency of the battery 5 is high, i.e. in a sunny weather, the outside temperature of the maintenance shed is high. The control of the electric telescopic rod 20 is to retract, which reduces the distance between the outer and inner mesh panels 13 on the side of the maintenance shed. There is no need to inflate the air chamber 3 on the side of the maintenance shed. This allows the solar panel 4 to collect solar energy while the sun directly heats the inside of the maintenance shed, reducing the power of the electric heating components and the hot air blower 7. This allows the battery 5 to be fully charged during sunny days. When the charging efficiency of the battery 5 is low, i.e. on a cloudy day or when the temperature is low, the electric telescopic rod 20 is extended to increase the distance between the outer and inner mesh panels 13 on the side of the curing shed. High-temperature gas is continuously filled into the air chamber 3 by the hot air blower 7, so that the air chamber 3 forms an air insulation layer. Excess high-temperature gas in the air chamber 3 can be introduced into the curing shed to help maintain the temperature inside the curing shed to the temperature required for curing. The air chamber 3 acts as a buffer. At the same time, humid and hot air is blown into the curing shed through the first ventilation pipe 6 and the one-way air valve 12 on the first tarpaulin 1. This can reduce the air flow rate of the first ventilation pipe 6 and the one-way air valve 12, and prevent the humid and hot air from blowing directly onto the surface of the precast concrete beam, thus avoiding uneven temperature and humidity on the surface of the precast concrete beam.

Claims

1. A solar-powered curing shed for precast concrete beams, characterized in that, The system includes a main structure for a maintenance shed, which consists of a frame and a first tarpaulin. A second tarpaulin is installed outside the first tarpaulin, forming an air chamber between the second tarpaulin and the first tarpaulin. A solar panel is installed on the top of the frame, and the solar panel is electrically connected to a battery. Several first ventilation pipes are installed inside the first tarpaulin, and the several first ventilation pipes are connected to a hot air blower. The solar panel, the battery, and the hot air blower are all located outside the second tarpaulin, and the hot air blower is electrically connected to the battery. The bottom of the shed is laid with phase change energy storage concrete and electric storage concrete, with the electric storage concrete located below the phase change energy storage concrete; the phase change energy storage concrete layer and the curing shed together form a closed space; the electric storage concrete is electrically connected to the solar panels. The air inlet of the hot air blower is connected to a water tank, and an electric heating component is installed on the side wall of the water tank. The electric heating component is electrically connected to a storage battery. A water vapor outlet connected to the air inlet of the hot air blower is opened at the top of the water tank. An air inlet is provided at the bottom of the water tank, and a one-way valve is provided at the air inlet. The one-way valve allows air from outside the water tank to enter the water tank through the one-way valve, but water in the water tank cannot flow out of the water tank through the one-way valve. The second tarpaulin is also equipped with a second ventilation pipe, which is connected to a hot air blower through a pipe. When the hot air blower is working, it fills the air chamber with hot air, forming a heat-insulating airbag between the first tarpaulin and the second tarpaulin. The first tarpaulin is also equipped with several one-way air valves, which allow the gas in the air chamber to enter the first tarpaulin, but the gas in the first tarpaulin cannot enter the air chamber. The canopy is a double-layer structure consisting of two layers of mesh panels, with both the first and second tarpaulins located between the two layers of mesh panels. The air chamber is equipped with a partition cloth, which separates the top and two sides of the curing shed into separate air chambers. Each air chamber is connected to a hot air blower, and a valve is installed between the hot air blower and each air chamber. The two ends of the curing shed are air inlet doors, and the air inlet doors are equipped with maintenance doors for staff to enter and exit. The distance between the inner and outer mesh panels is controlled by a scissor-type translation component on both sides and the top of the curing shed along its length; and the plane in which the scissor-type translation component is located is perpendicular to the length of the curing shed; the scissor-type translation component is located inside the air chamber; The maintenance shed is also equipped with a spraying system, which includes spray heads evenly spaced within the maintenance shed. Each spray head is connected to a water pump, which is electrically connected to a storage battery. The water inlet of the water pump is connected to a water tank via a pipe.

2. The solar curing shed for precast concrete beams according to claim 1, characterized in that, The scissor-type translation component includes a fixed frame, a movable frame, and an electric telescopic rod. Two scissor arms are symmetrically arranged between the fixed frame and the movable frame, and the plane of the scissor arms is perpendicular to the length direction of the maintenance shed. Each scissor arm consists of a first arm and a second arm that are hinged to each other. The first arms of the two scissor arms are connected and fixed by a vertical connecting rod. One end of the electric telescopic rod is hinged to the fixed frame, and the other end of the electric telescopic rod is hinged to the connecting rod. One end of each scissor arm is slidably engaged with both the fixed frame and the movable frame. The electric telescopic rod is electrically connected to a battery.

3. The solar curing shed for precast concrete beams according to claim 2, characterized in that, The inner mesh panels on both sides of the shed along the length of the maintenance shed serve as fixed mesh panels, while the outer mesh panels serve as movable mesh panels; the outer mesh panels on the top shed of the maintenance shed serve as fixed mesh panels, while the inner mesh panels serve as movable mesh panels.

4. The solar curing shed for precast concrete beams according to claim 3, characterized in that, The first ventilation pipe is located in the lower half of the curing shed, and an air outlet pipe is installed on the top of the curing shed. The air outlet pipe passes through the first tarpaulin and the second tarpaulin to connect the inside and outside of the curing shed. A valve is also installed inside the air outlet pipe.

5. The solar curing shed for precast concrete beams according to claim 4, characterized in that, It also includes a controller and temperature and humidity sensors installed in the maintenance shed; the controller is electrically connected to the temperature sensor, humidity sensor, battery, electric heating component, hot air blower, electric telescopic pole and water pump respectively; the controller performs electrical control on the electric heating component, hot air blower, electric telescopic pole and water pump according to the sensing information of the temperature sensor and humidity sensor as well as the charging and discharging and power loss information of the battery.

6. A method for controlling the curing of precast concrete beams using the solar curing shed for precast concrete beams as described in claim 5, characterized in that, By inflating the air chamber, an air insulation layer is formed between the first and second tarpaulins, which isolates the external temperature from the curing shed and continuously blows humid hot air into the curing shed. Combined with the spraying components, the curing shed is kept in a high temperature and high humidity state. The shear-type translation component on the top of the curing shed can reduce the empty space above the precast concrete beams inside the curing shed, reduce the pressure on the hot air blower and electric heating components, reduce energy consumption, and meet energy consumption through solar panel storage. When the battery charging efficiency is high, i.e. in a sunny weather, the outside temperature of the maintenance shed is high. By controlling the retraction of the electric telescopic rod, the distance between the outer and inner mesh panels on the side of the maintenance shed is reduced, and there is no need to inflate the air chambers on the side of the maintenance shed. This allows the solar panels to collect solar energy while the sun directly heats the inside of the maintenance shed, reducing the power of the electric heating components and hot air blower. As a result, the battery can be fully charged during sunny days. When the battery charging efficiency is low, i.e. on cloudy days or when the temperature is low, the electric telescopic rod is extended to increase the distance between the outer and inner mesh panels on the side of the curing shed. High-temperature gas is continuously filled into the air chamber by a hot air blower, forming an air insulation layer in the air chamber. Excess high-temperature gas in the air chamber can be introduced into the curing shed to help maintain the temperature inside the curing shed to the required curing temperature. The air chamber acts as a buffer, and at the same time, humid and hot air is blown into the curing shed through the first ventilation pipe and the one-way air valve on the first tarpaulin. This reduces the airflow velocity in the first ventilation pipe and the one-way air valve, preventing humid and hot air from blowing directly onto the surface of the precast concrete beam and avoiding uneven temperature and humidity on the surface of the precast concrete beam.

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