Energy-saving ventilation device for double-layer roof of construction engineering

Abstract

The building engineering double-layer roof energy-saving ventilation device disclosed by the present disclosure relates to the technical field of ventilation devices and comprises a roof, a ventilation frame fixed on the roof, a power generation structure installed on the ventilation frame, an energy storage structure installed in the roof, a first heat exchange block, a sliding frame slidingly matched with the lower side of the ventilation frame, a plurality of communication holes formed in the circumferential side of the sliding frame, a plurality of first flow guide plates installed in the ventilation frame, a plurality of air inlets formed in the circumferential side of the ventilation frame, and a first fixing frame fixed in the ventilation frame. In the building engineering double-layer roof energy-saving ventilation device disclosed by the present disclosure, the energy storage structure is installed in the roof, the ventilation frame is installed on the roof, and the sliding frame is installed on the lower side of the ventilation frame, so that the energy storage structure can be used for heat preservation and air heat exchange, thereby achieving a good heat preservation effect on the indoor environment and preventing the instability speed from being too fast in winter.

Description

Technical Field

[0001] This disclosure relates to the field of ventilation device technology, and in particular to an energy-saving ventilation device for double-layer roofs in building engineering. Background Technology

[0002] Ventilation is crucial for human health, going beyond simply providing fresh air. Renovations, furniture, and office equipment emit large amounts of harmful gases. Poor ventilation makes it difficult for these pollutants to dilute and disperse, and the long-term health risks of prolonged exposure are self-evident. The most effective way to address home renovation pollution is ventilation, and installing an indoor ventilation system is the best option. Currently, most indoor ventilation systems rely on exhaust fans to expel indoor air, which consumes significant energy. While natural ventilators installed on the roof circulate air, their efficiency is greatly affected by external wind forces. Strong winds cause large amounts of outside air to enter the room, leading to a sharp drop in indoor temperature, especially in cold winters, and hindering ventilation. Conversely, weak winds result in low ventilation efficiency, affecting air exchange rates, and the inability to easily adjust indoor and outdoor ventilation limits the system's applicability. Summary of the Invention

[0003] This disclosure aims to at least partially address one of the technical problems in the related art.

[0004] Therefore, the purpose of this disclosure is to provide an energy-saving ventilation device for double-roofed buildings.

[0005] To achieve the above objectives, this disclosure provides a double-layer roof energy-saving ventilation device for building engineering, comprising: a roof, on which a ventilation frame is fixed, a power generation structure is mounted on the ventilation frame, and an energy storage structure is installed inside the roof. The energy storage structure includes a first heat exchange block fixed inside the roof, and a sliding frame is slidably fitted to the lower side of the ventilation frame, with multiple connecting holes on the periphery of the sliding frame; a flow guiding structure, comprising multiple first flow guiding plates installed inside the ventilation frame, multiple air inlets on the periphery of the ventilation frame, a first fixed frame fixed inside the ventilation frame, a rotating shaft rotatably fitted inside the first fixed frame, and a rotation speed limiting structure installed between the rotating shaft and the first fixed frame, the rotation speed limiting structure including a first rotating frame. The first rotating frame is equipped with a first friction plate and a second friction plate. A connecting structure is installed between the rotating shaft and the first guide plate. The connecting structure includes multiple second rotating frames, which are rotatably connected to the first guide plate. A hydraulic push structure is included, which includes a first hydraulic oil passage opened in the rotating shaft and a second hydraulic oil passage opened in the second rotating frame. The first hydraulic oil passage and the second hydraulic oil passage are connected. A downward pressing structure and an energy storage box are fixed in the ventilation frame. The downward pressing structure includes an electric cylinder. The output end of the electric cylinder is equipped with a second guide plate and a first piston block. The first piston block is slidably fitted in the hydraulic push structure. A second piston block is installed on the energy storage box, and the second piston block is slidably fitted in the hydraulic push structure.

[0006] Optionally, a cavity is provided inside the roof, and multiple first heat exchange blocks are fixed inside the cavity. An air passage is provided between two adjacent first heat exchange blocks. A first sliding groove is provided inside the ventilation frame, and the sliding frame is slidably fitted into the first sliding groove. The sliding frame is slidably connected to the roof. An electric slide rail is fixed inside the ventilation frame, and the output end of the electric slide rail is fixedly connected to the sliding frame.

[0007] Optionally, the power generation structure includes: a solar panel and a wind turbine; wherein, a support frame is fixed on the ventilation frame, the support frame is fixedly connected to the solar panel, an air outlet is opened at the top of the ventilation frame, a baffle is fixed on the air outlet, and the wind turbine is fixed inside the air outlet.

[0008] Optionally, the first rotating frame has a first groove, the rotating shaft is rotatably fitted in the first groove, the circumference of the rotating shaft has a second groove, the first friction plate is fixed in the first groove, one end of the second friction plate is located in the second groove, the other end of the second friction plate is in contact with the first friction plate, and a spring is fixed between the second friction plate and the groove wall of the second groove.

[0009] Optionally, the rotating shaft is provided with a second sliding groove and a third sliding groove. The first piston block is located in the second sliding groove, and the second piston block is located in the third sliding groove. Both the second and third sliding grooves are connected to the first hydraulic oil passage. Both the second and third sliding grooves are funnel-shaped groove structures.

[0010] Optionally, a second fixed frame is fixed inside the ventilation frame. The second fixed frame is fixedly connected to the electric cylinder. A connecting rod is fixed to the output end of the electric cylinder. The connecting rod is fixedly connected to the first piston block and the second guide plate. The second guide plate has a funnel-shaped structure. A first push rod is fixed on the first piston block. A one-way valve is fixed inside the second sliding groove. One end of the first push rod is in contact with the one-way valve.

[0011] Optionally, a shaft is fixed on the first guide plate, and the shaft is rotatably fitted into the second rotating frame. A rotating groove is opened in the second rotating frame, one end of the shaft is located in the rotating groove, and a rotating plate is fixed at the end of the shaft located in the rotating groove. The rotating groove is connected to the second hydraulic oil passage.

[0012] Optionally, a movable plate is slidably fitted inside the energy storage box, a limit block is fixed on the top of the energy storage box, the limit block is in contact with the movable plate, a second push rod is fixed on the movable plate, and the end of the second push rod is fixedly connected to the second piston block.

[0013] Optionally, the energy storage box has multiple connecting pipes fixed inside, with both ends of the connecting pipes connected to a ventilation frame and a sliding frame, respectively, and a movable plate slidably connected to the connecting pipes; wherein, a connecting frame is fixed inside the sliding frame, and the connecting frame is fixedly connected to the energy storage box.

[0014] Optionally, both the first heat exchange block and the connecting pipe are made of thermally conductive material. The first heat exchange block is a hollow structure, and both the first heat exchange block and the energy storage box are filled with phase change energy storage material, which is paraffin or inorganic salt.

[0015] The technical solution provided in this disclosure may include the following beneficial effects: 1. Install an energy storage structure inside the roof, install a ventilation frame on the roof, and install a sliding frame under the ventilation frame. This allows the energy storage structure to provide insulation and exchange heat with the air, resulting in better insulation of the room and preventing rapid instability in winter. The sliding frame can be adjusted up and down to control the position of the blowing or exhausting air, making the device more flexible to use and ensuring the ventilation effect of the device.

[0016] 2. Installing a first and second guide plate inside the ventilation frame allows for airflow guidance. The top of the ventilation frame, in conjunction with the air outlet, forms a Venturi tube, thereby accelerating the airflow and increasing the ventilation rate. Furthermore, the blown air can be used to generate wind power, thus achieving wind energy recovery and utilization. By using solar panels for shading, not only can solar power be generated, but external objects can also be prevented from directly entering the ventilation frame and affecting the device, extending the device's service life.

[0017] 3. The blowing angle can be changed by rotating the first guide plate up and down, so as to blow air outward to the outside or into the room, making the device more flexible to use and expanding its application range. Furthermore, the deformation of the phase change material in the energy storage box can drive the first guide plate for fine adjustment, so as to automatically adjust the blowing angle according to the actual temperature and improve ventilation efficiency. It can also be actively adjusted by the electric slide rail to achieve a certain temperature control effect.

[0018] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall assembly three-dimensional structure of a double-layer roof energy-saving ventilation device for building engineering proposed in one embodiment of this disclosure; Figure 2 This is a schematic diagram of the overall assembly cross-sectional structure of a double-layer roof energy-saving ventilation device for building engineering proposed in one embodiment of this disclosure; Figure 3 yes Figure 2 A schematic diagram at point A in the middle; Figure 4 This is a schematic diagram of the assembly cross-sectional structure of the ventilation frame and sliding frame in a double-layer roof energy-saving ventilation device for building engineering according to an embodiment of this disclosure; Figure 5 yes Figure 4 A schematic diagram at point B in the middle; Figure 6 This is a schematic diagram of the assembly cross-sectional structure of the roof, ventilation frame, and rotating shaft in a double-roof energy-saving ventilation device for building engineering proposed in one embodiment of this disclosure; Figure 7 yes Figure 6 A schematic diagram at point C in the middle; Figure 8 This is a schematic diagram of the assembly cross-sectional structure of the ventilation frame, rotating shaft, and second guide plate in a double-layer roof energy-saving ventilation device for building engineering according to an embodiment of this disclosure; Figure 9 This is a schematic diagram of the assembled three-dimensional structure of the rotating shaft, the first guide plate, and the sliding frame in a double-layer roof energy-saving ventilation device for building engineering proposed in an embodiment of this disclosure; Figure 10 This is a schematic diagram of the assembled three-dimensional structure of the ventilation frame and sliding frame in a double-layer roof energy-saving ventilation device for building engineering according to an embodiment of this disclosure; Figure 11This is an exploded view of a double-roof energy-saving ventilation device for building engineering according to an embodiment of this disclosure; Figure 12 This is a schematic diagram of the assembly structure of the second rotating frame and the first guide plate in a double-layer roof energy-saving ventilation device for building engineering proposed in an embodiment of this disclosure; Figure 13 yes Figure 12 A schematic diagram at point D in the middle; Figure 14 This is a schematic diagram of the assembly structure of the roof and the first heat exchange block in a double-roof energy-saving ventilation device for building engineering according to an embodiment of this disclosure; As shown in the figure: 101, roof; 102, cavity; 103, first heat exchange block; 104, air duct; 105, ventilation frame; 106, sliding frame; 107, first sliding groove; 108, connecting hole; 109, electric slide rail; 201, support frame; 202, solar panel; 203, air outlet; 204, baffle; 205, wind turbine; 301, air inlet; 302, first fixed frame; 303, first rotating frame; 304, rotating shaft; 305, first friction plate; 306, second friction plate; 307, first groove; 308, spring; 309, second sliding groove; 3 10. First hydraulic oil passage; 311. Second rotating frame; 312. Rotating groove; 313. Shaft; 314. Rotating plate; 315. Second hydraulic oil passage; 316. First guide plate; 317. Third sliding groove; 318. Second groove; 401. Second fixed frame; 402. Electric cylinder; 403. First piston block; 404. Second guide plate; 405. First push rod; 406. Connecting rod; 407. One-way valve; 501. Connecting frame; 506. Energy storage box; 503. Movable plate; 504. Connecting pipe; 505. Limiting block; 506. Second push rod; 507. Second piston block. Detailed Implementation

[0020] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0021] like Figures 1 to 14As shown in the present disclosure, an energy-saving ventilation device for a double-layer roof in a building project is proposed, comprising: a roof 101, on which a ventilation frame 105 is fixed, a power generation structure is installed on the ventilation frame 105, and an energy storage structure is installed inside the roof 101. The energy storage structure includes a first heat exchange block 103, which is fixed inside the roof 101. A sliding frame 106 is slidably fitted on the lower side of the ventilation frame 105, and multiple connecting holes 108 are opened on the periphery of the sliding frame 106; a flow guiding structure, which includes multiple first flow guiding plates 316 installed inside the ventilation frame 105, multiple air inlets 301 opened on the periphery of the ventilation frame 105, a first fixed frame 302 fixed inside the ventilation frame 105, a rotating shaft 304 rotatably fitted inside the first fixed frame 302, and a rotation speed limiting structure is installed between the rotating shaft 304 and the first fixed frame 302. The rotation speed limiting structure includes a first rotating frame 303. The rotating frame 303 is equipped with a first friction plate 305 and a second friction plate 306. A connecting structure is installed between the rotating shaft 304 and the first guide plate 316. The connecting structure includes multiple second rotating frames 311, which are rotatably connected to the first guide plate 316. A hydraulic push structure is also included, which includes a first hydraulic oil passage 310 opened in the rotating shaft 304 and a second hydraulic oil passage 315 opened in the second rotating frame 311. The first hydraulic oil passage 310 and the second hydraulic oil passage 315 are connected. A downward pressing structure and an energy storage box 502 are fixed in the ventilation frame 105. The downward pressing structure includes an electric cylinder 402. The output end of the electric cylinder 402 is equipped with a second guide plate 404 and a first piston block 403. The first piston block 403 is slidably fitted in the hydraulic push structure. A second piston block 507 is installed on the energy storage box 502, which is slidably fitted in the hydraulic push structure.

[0022] Specifically, ventilation is achieved through the ventilation frame 105, and the position of air exchange is controlled by the sliding frame 106. When the sliding frame 106 slides downward, air exchange occurs directly through the connecting hole 108 on the sliding frame 106, with air blowing directly under the ventilation frame 105. When the sliding frame 106 is pushed upward, air enters the roof 101, exchanges heat with the first heat exchange block 103, and is then blown into the room, thus achieving a good temperature control effect. The airflow direction can be changed as needed to improve the ventilation effect of the device. When ventilation is required, the first guide plate 316 is driven by external wind, and the airflow is guided by the first guide plate 316. The first guide plate 316 can be rotated through the rotating shaft 304 according to different wind directions, thus automatically and flexibly adjusting. The rotation speed is controlled by the rotation speed limiting structure, and the speed of airflow into the room is adjusted by the angle of the first guide plate 316, thereby ensuring the ventilation effect and preventing the ventilation from being affected by large or small external wind speeds.

[0023] In this embodiment, a cavity 102 is provided inside the roof 101, and the cavity 102 is connected to the interior. Multiple first heat exchange blocks 103 are fixed inside the cavity 102. An air passage 104 is provided between two adjacent first heat exchange blocks 103. A first sliding groove 107 is provided inside the ventilation frame 105, and a sliding frame 106 is slidably engaged in the first sliding groove 107. The sliding frame 106 is slidably connected to the roof 101. An electric slide rail 109 is fixed inside the ventilation frame 105, and the output end of the electric slide rail 109 is fixedly connected to the sliding frame 106. The first heat exchange blocks 103 and the connecting pipe 504 are both made of thermally conductive material. The first heat exchange blocks 103 are hollow structures. Both the first heat exchange blocks 103 and the energy storage box 502 are filled with phase change energy storage material, which is paraffin or inorganic salt.

[0024] Specifically, when the ventilation position needs to be adjusted, the electric slide rail 109 is activated, which drives the sliding frame 106 to slide up and down. When the sliding frame 106 slides to the bottom, it is directly connected to the indoor environment through the connecting hole 108, so that external air enters the room directly from below the ventilation frame 105, or indoor air is blown out from below the ventilation frame 105. When the electric slide rail 109 drives the sliding frame 106 to slide upward, the connecting hole 108 is connected to the cavity 102, so that external air enters the air duct 104 and exchanges heat with the first heat exchange block 103 before entering the room, or indoor high-temperature air exchanges heat with the air and is blown out. By storing the temperature through the phase change material, a certain temperature control effect can be achieved, preventing the indoor temperature from changing too quickly, thus ensuring the comfort of the indoor temperature, reducing energy loss, and improving the ventilation effect.

[0025] The power generation structure includes: a solar panel 202 and a wind turbine 205; wherein, a support frame 201 is fixed on the ventilation frame 105, the support frame 201 is fixedly connected to the solar panel 202, an air outlet 203 is opened on the top of the ventilation frame 105, a baffle 204 is fixed on the air outlet 203, and the wind turbine 205 is fixed inside the air outlet 203.

[0026] Specifically, solar power generation can be achieved through solar panels 202, which are located above the ventilation rack 105, thus providing good shading and preventing external impurities from entering the ventilation rack 105 and affecting indoor ventilation, thereby improving the ventilation effect of the device. It also prevents direct sunlight from causing temperature rise and affecting the temperature control effect of ventilation. When ventilation is directed outward, the wind blows over the wind turbine 205, which generates electricity, thereby recovering energy and reducing energy waste. Furthermore, the air outlet 203 has a structure that is wider at the bottom and narrower at the top, which can be combined with the ventilation rack 105 to form a Venturi tube, thereby achieving a good pressurization effect and ensuring that the wind speed is increased when blowing air, thus preventing the ventilation efficiency from being affected when the external wind speed is low, thereby improving the energy-saving and environmental protection effect of the device.

[0027] A first groove 307 is provided in the first rotating frame 303. An electromagnet is fixed in the first groove 307. A rotating shaft 304 is rotatably fitted in the first groove 307. A second groove 318 is provided on the circumference of the rotating shaft 304. A first friction plate 305 is fixed in the first groove 307. One end of the second friction plate 306 is located in the second groove 318. The other end of the second friction plate 306 is in contact with the first friction plate 305. A spring 308 is fixed between the second friction plate 306 and the groove wall of the second groove 318.

[0028] Specifically, when the external wind direction changes, the changing wind direction pushes the first guide plate 316, causing it to rotate via the shaft 304. This allows for active and flexible adjustment of the first guide plate 316 according to the wind direction, improving the ventilation effect of the device. When the shaft 304 rotates at high speed, the centrifugal force is greater than the elastic force of the spring 308, causing the second friction plate 306 to come into contact with the first friction plate 305 under the action of centrifugal force, generating greater friction. This effectively relieves the force on the rotation of the shaft 304. When it is necessary to fix the shaft 304 to fix the position of the first guide plate 316, the electromagnet is activated, causing it to attract and fix the second friction plate 306, ensuring that there is always greater friction between the first friction plate 305 and the second friction plate 306, thus ensuring the stability of the first guide plate 316. This allows for flexible adjustment as needed, making the device suitable for different wind directions and operating conditions, thus expanding the applicability of the device.

[0029] The rotating shaft 304 has a second sliding groove 309 and a third sliding groove 317. The first piston block 403 is located in the second sliding groove 309, and the second piston block 507 is located in the third sliding groove 317. Both the second sliding groove 309 and the third sliding groove 317 are connected to the first hydraulic oil passage 310. Both the second sliding groove 309 and the third sliding groove 317 are funnel-shaped groove structures. A second fixing frame 401 is fixed in the ventilation frame 105. The second fixing frame 401 is fixedly connected to the electric cylinder 402. A connecting rod 406 is fixed at the output end of the electric cylinder 402. The connecting rod 406 is fixedly connected to the first piston block 403 and the second guide plate 404. The second guide plate 404 is a funnel-shaped structure. A first push rod 405 is fixed on the first piston block 403. A one-way valve 407 is fixed in the second sliding groove 309. One end of the first push rod 405 is in contact with the one-way valve 407.

[0030] Specifically, when the vertical angle of the first guide plate 316 needs to be adjusted, when the first guide plate 316 is tilted upward, it guides the air upward, allowing air to blow outward. This creates a negative pressure state inside the ventilation frame 105 and the roof 101, allowing indoor air to enter the roof 101 and the ventilation frame 105, and then be blown out through the ventilation frame 105, thus achieving a good ventilation effect. When the first guide plate 316 is tilted downward, it guides the outside air downward, allowing it to blow directly into the room, achieving a good ventilation effect. When adjustment is needed, the electric cylinder 402 is activated, which pushes the connecting rod 406 up and down, thereby pushing the first piston block 403 and the second guide plate 406. 4. The sliding motion of the first hydraulic oil passage 310 compresses the hydraulic oil, which in turn drives the first guide plate 316 to rotate, ensuring that the first guide plate 316 can achieve a good guiding effect. Furthermore, the deformation of the phase change material in the energy storage box 502 can drive the second piston block 507 to compress the hydraulic oil, thereby assisting in adjusting a certain angle. When the connecting rod 406 pushes the one-way valve 407 through the first push rod 405, the one-way valve 407 is in a normally open state. Thus, within a certain range, the sliding motion of the first piston block 403 can achieve a good angle adjustment effect for the first guide plate 316. When the first guide plate 316 tilts downward, the second guide plate 404 can seal the air outlet 203, thereby ensuring that air can be blown into the room and improving the ventilation effect.

[0031] A shaft 313 is fixed on the first guide plate 316. A torsion spring is installed on the shaft 313. The shaft 313 is rotatably fitted into the second rotating frame 311. A rotating groove 312 is opened in the second rotating frame 311. One end of the shaft 313 is located in the rotating groove 312. A rotating plate 314 is fixed to the end of the shaft 313 located in the rotating groove 312. The rotating groove 312 is connected to the second hydraulic oil passage 315.

[0032] Specifically, when the angle of the first guide plate 316 is adjusted, hydraulic oil enters the rotating groove 312 and squeezes the rotating plate 314, thereby driving the shaft 313 to rotate, causing the first guide plate 316 to rotate. This allows the angle of the first guide plate 316 to be adjusted, and the hydraulic oil can also have a good squeezing and fixing effect, preventing the vertical angle of the first guide plate 316 from changing due to wind force, thereby improving the ventilation efficiency of the device.

[0033] A movable plate 503 is slidably fitted inside the energy storage box 502. A limit block 505 is fixed on the top of the energy storage box 502, and the limit block 505 is in contact with the movable plate 503. A second push rod 506 is fixed on the movable plate 503, and the end of the second push rod 506 is fixedly connected to the second piston block 507. A plurality of connecting pipes 504 are fixed inside the energy storage box 502. The two ends of the connecting pipes 504 are respectively connected to the ventilation frame 105 and the sliding frame 106. The movable plate 503 is slidably connected to the connecting pipes 504. A connecting frame 501 is fixed inside the sliding frame 106, and the connecting frame 501 is fixedly connected to the energy storage box 502.

[0034] Specifically, the ventilation frame 105 and the sliding frame 106 are connected by a connecting pipe 504, which allows the phase change material to exchange heat with the air and store energy, thereby ensuring the temperature of the air exchange. Furthermore, by actively adjusting the position of the sliding frame 106, the position of the energy storage box 502 can be adjusted via the connecting frame 501, and the position of the second piston block 507 can be adjusted via the second push rod 506. This can actively assist in adjusting the angle of the first guide plate 316. When the phase change material deforms and pushes the movable plate 503 to slide, it can also push the position of the second piston block 507 to automatically assist in adjusting the angle of the first guide plate 316, making the device more flexible to use and expanding its application range.

[0035] Workflow: Ventilation is achieved through the ventilation rack 105. The position of the ventilation is controlled by sliding the sliding rack 106 up and down. Activating the electric slide rail 109 causes the sliding rack 106 to slide up and down. When the sliding rack 106 reaches the bottom, it connects directly to the interior through the connecting hole 108, allowing outside air to enter the room directly from below the ventilation rack 105, or allowing indoor air to be blown upwards from below the ventilation rack 105. When the electric slide rail 109 causes the sliding rack 106 to slide upwards, the connecting hole 108 connects to the cavity 102, allowing outside air to enter the air duct 104, exchange heat with the first heat exchange block 103, and then enter the room, or allowing hot indoor air to exchange heat and then be blown out. This process utilizes the phase change material... Temperature is stored, and solar power can be generated through solar panel 202. Solar panel 202 is located above ventilation rack 105 to prevent external impurities from entering the ventilation rack 105 and affecting indoor ventilation. Wind blowing over wind turbine 205 generates electricity. The air outlet 203 has a structure that is wider at the bottom and narrower at the top, allowing it to form a Venturi tube with ventilation rack 105, thus achieving a better pressurization effect. When the external wind direction changes, the changing wind direction pushes the first guide plate 316, causing the first guide plate 316 to rotate via shaft 304. This allows for active and flexible adjustment of the first guide plate 316 according to the wind direction, enabling the device to achieve better ventilation. When shaft 304 rotates... 4. During high-speed rotation, the centrifugal force is greater than the elastic force of the spring 308, causing the second friction plate 306 to come into contact with the first friction plate 305 under the action of centrifugal force, generating greater friction. This effectively relieves the force on the rotation of the shaft 304. When it is necessary to fix the shaft 304 to secure the position of the first guide plate 316, the electromagnet is activated, attracting and fixing the second friction plate 306. This ensures that the first friction plate 305 and the second friction plate 306 maintain significant friction, thus ensuring the stability of the first guide plate 316. When it is necessary to adjust the vertical angle of the first guide plate 316, when the first guide plate 316 tilts upwards, the first guide plate 316 tilts upwards... The airflow is guided to create a negative pressure state within the ventilation frame 105 and the roof 101, allowing indoor air to enter the roof 101 and ventilation frame 105 and then be blown out through the ventilation frame 105, thus achieving a good ventilation effect. When the first guide plate 316 is tilted downwards, it guides the outside air downwards, allowing it to blow directly into the room, achieving a good ventilation effect. When adjustment is needed, the electric cylinder 402 is activated, which pushes the connecting rod 406 up and down, thereby pushing the first piston block 403 and the second guide plate 404 up and down, causing the hydraulic oil in the first hydraulic oil passage 310 to be squeezed, which in turn pushes the first guide plate 316 to rotate.This ensures that the first guide plate 316 can achieve a good guiding effect, and the deformation of the phase change material in the energy storage box 502 can push the second piston block 507 to squeeze the hydraulic oil, thereby assisting in adjusting a certain angle. When the connecting rod 406 pushes the one-way valve 407 through the first push rod 405, the one-way valve 407 is in a normally open state. Thus, within a certain range, the first piston block 403 can slide up and down to achieve a good angle adjustment effect on the first guide plate 316. And when the first guide plate 316 tilts downward, the second piston block 507 can adjust the hydraulic oil. The guide vane 404 seals the air outlet 203, ensuring air can be blown into the room. When the angle of the first guide vane 316 is adjusted, hydraulic oil enters the rotating groove 312, pressing the rotating plate 314 and driving the shaft 313 to rotate, thus rotating the first guide vane 316. This allows for angle adjustment of the first guide vane 316. Furthermore, the hydraulic oil provides good compression and fixing effects, preventing changes in the vertical angle of the first guide vane 316 due to wind force, thereby improving the ventilation efficiency of the device.

[0036] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0037] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A double-layer roof energy-saving ventilation device for building engineering, characterized in that, include: A roof (101) is provided with a ventilation frame (105) fixed on the roof (101). A power generation structure is installed on the ventilation frame (105). An energy storage structure is installed inside the roof (101). The energy storage structure includes a first heat exchange block (103). The first heat exchange block (103) is fixed inside the roof (101). A sliding frame (106) is slidably fitted on the lower side of the ventilation frame (105). Multiple connecting holes (108) are opened on the periphery of the sliding frame (106). The flow guiding structure includes multiple first flow guiding plates (316) installed in the ventilation frame (105), multiple air inlets (301) are opened on the periphery of the ventilation frame (105), a first fixed frame (302) is fixed in the ventilation frame (105), a rotating shaft (304) is rotatably fitted in the first fixed frame (302), a rotation speed limiting structure is installed between the rotating shaft (304) and the first fixed frame (302), the rotation speed limiting structure includes a first rotating frame (303), a first friction plate (305) and a second friction plate (306) are installed in the first rotating frame (303), a connecting structure is installed between the rotating shaft (304) and the first flow guiding plate (316), the connecting structure includes multiple second rotating frames (311), the second rotating frames (311) are rotatably connected to the first flow guiding plate (316); The hydraulic push structure includes a first hydraulic oil passage (310) opened in the rotating shaft (304), a second hydraulic oil passage (315) opened in the second rotating frame (311), the first hydraulic oil passage (310) and the second hydraulic oil passage (315) are connected, a pressing structure and an energy storage box (502) are fixed in the ventilation frame (105), the pressing structure includes an electric cylinder (402), the output end of the electric cylinder (402) is equipped with a second guide plate (404) and a first piston block (403), the first piston block (403) is slidably fitted in the hydraulic push structure, and a second piston block (507) is installed on the energy storage box (502), the second piston block (507) is slidably fitted in the hydraulic push structure.

2. The energy-saving ventilation device for double-layer roofs in building engineering according to claim 1, characterized in that, include: A cavity (102) is provided inside the roof (101), and multiple first heat exchange blocks (103) are fixed inside the cavity (102). An air passage (104) is provided between two adjacent first heat exchange blocks (103). A first sliding groove (107) is provided inside the ventilation frame (105), and the sliding frame (106) is slidably fitted inside the first sliding groove (107). The sliding frame (106) is slidably connected to the roof (101). The ventilation frame (105) is equipped with an electric slide rail (109), and the output end of the electric slide rail (109) is fixedly connected to the slide frame (106).

3. The energy-saving ventilation device for double-layer roofs in building engineering according to claim 1, characterized in that, The power generation structure includes: Solar panel (202), wind turbine (205); The ventilation frame (105) is fixed with a support frame (201), the support frame (201) is fixedly connected to the solar panel (202), the ventilation frame (105) has an air outlet (203) at the top, a baffle (204) is fixed on the air outlet (203), and the wind turbine (205) is fixed inside the air outlet (203).

4. The energy-saving ventilation device for double-layer roofs in building engineering according to claim 1, characterized in that, include: The first rotating frame (303) has a first groove (307) inside, the rotating shaft (304) is rotatably fitted in the first groove (307), the rotating shaft (304) has a second groove (318) on its circumference, the first friction plate (305) is fixed in the first groove (307), one end of the second friction plate (306) is located in the second groove (318), the other end of the second friction plate (306) is in contact with the first friction plate (305), and a spring (308) is fixed between the second friction plate (306) and the groove wall of the second groove (318).

5. The energy-saving ventilation device for double-layer roofs in building engineering according to claim 1, characterized in that, include: The rotating shaft (304) is provided with a second sliding groove (309) and a third sliding groove (317). The first piston block (403) is located in the second sliding groove (309), and the second piston block (507) is located in the third sliding groove (317). The second sliding groove (309) and the third sliding groove (317) are both connected to the first hydraulic oil passage (310). The second sliding groove (309) and the third sliding groove (317) are both funnel-shaped groove structures.

6. The energy-saving ventilation device for double-layer roofs in building engineering according to claim 5, characterized in that, include: The ventilation frame (105) is fixed with a second fixed frame (401), which is fixedly connected to the electric cylinder (402). The output end of the electric cylinder (402) is fixed with a connecting rod (406), which is fixedly connected to the first piston block (403) and the second guide plate (404). The second guide plate (404) has a funnel-shaped structure. The first piston block (403) is fixed with a first push rod (405), and the second sliding groove (309) is fixed with a one-way valve (407). One end of the first push rod (405) is in contact with the one-way valve (407).

7. The energy-saving ventilation device for double-layer roofs in building engineering according to claim 1, characterized in that, include: A shaft (313) is fixed on the first guide plate (316). The shaft (313) is rotatably fitted in the second rotating frame (311). A rotating groove (312) is opened in the second rotating frame (311). One end of the shaft (313) is located in the rotating groove (312). A rotating plate (314) is fixed at the end of the shaft (313) located in the rotating groove (312). The rotating groove (312) is connected to the second hydraulic oil passage (315).

8. The energy-saving ventilation device for double-layer roofs in building engineering according to claim 1, characterized in that, include: The energy storage box (502) has a movable plate (503) that slides inside it. A limit block (505) is fixed on the top of the energy storage box (502). The limit block (505) is in contact with the movable plate (503). A second push rod (506) is fixed on the movable plate (503). The end of the second push rod (506) is fixedly connected to the second piston block (507).

9. The energy-saving ventilation device for double-layer roofs in building engineering according to claim 8, characterized in that, include: The energy storage box (502) is fixed with multiple connecting pipes (504). The two ends of the connecting pipes (504) are connected to the ventilation frame (105) and the sliding frame (106) respectively. The movable plate (503) is slidably connected to the connecting pipes (504). The sliding frame (106) has a connecting frame (501) fixed inside, and the connecting frame (501) is fixedly connected to the energy storage box (502).

10. The energy-saving ventilation device for double-layer roofs in building engineering according to claim 9, characterized in that, include: The first heat exchange block (103) and the connecting pipe (504) are both made of thermally conductive material. The first heat exchange block (103) is a hollow structure. The first heat exchange block (103) and the energy storage box (502) are filled with phase change energy storage material, which is paraffin or inorganic salt.

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