Power generation device based on air convection

Abstract

The invention relates to the technical field of renewable energy sources, and discloses a power generation device based on air convection, which comprises a tower base, a tower body is arranged on the tower base, and a rotary drum is rotationally arranged on the tower body; the multiple blades are distributed in a fan shape based on the central axis of the tower body and used for capturing air convection, and the multiple blades are connected with the rotary drum through a connecting mechanism. A power generation mechanism is arranged in the tower base and comprises a turbine generator, a gear box and a rotating shaft, and the rotating shaft is in transmission connection with the rotating drum and is in transmission connection with a rotor of the turbine generator through the gear box. According to the power generation device based on air convection, power generation is driven based on air convection generated by uneven heating of air according to the thermodynamic principle, use limitation of the environment wind speed can be avoided, and the fan-shaped area of a fan-shaped structure formed by a plurality of blades used for capturing air convection can be automatically adjusted in a telescopic mode according to the wind pressure of the windward side and the leeward side; the wind resistance is reduced, and the trapped air convection quantity is increased.

Description

Technical Field

[0001] The invention relates to the technical field of renewable energy, and in particular to a power generation device based on air convection. Background Art

[0002] Wind energy is a clean, pollution-free renewable energy source. Existing wind power generation technologies mainly rely on the rotation of windmills to convert wind energy into electrical energy. However, these technologies are usually limited by geographical location and wind speed changes. When the ambient wind speed is low, windmill power generation is difficult to achieve, especially in dry and hot areas, where windmill power generation is not applicable.

[0003] Therefore, in order to solve the above technical problems existing in the prior art, a power generation device based on air convection is proposed. Summary of the invention

[0004] The present invention provides a power generation device based on air convection, which has the function of driving power generation based on air convection generated by uneven air heating according to the thermodynamic principles, and can be used without relying on the limitation of ambient wind speed. The fan-shaped structure composed of multiple blades for capturing air convection will automatically expand and contract to adjust the fan-shaped area according to the wind pressure on the windward and leeward sides, so as to reduce wind resistance and increase the amount of captured air convection, thereby solving the problem mentioned in the above background technology that the existing wind power generation technology mainly relies on the rotation of windmills to convert wind energy into electrical energy, and is usually limited by geographical location and wind speed changes.

[0005] The present invention provides the following technical solution: a power generation device based on air convection, comprising a tower base, a tower body is arranged on the tower base, and a rotating drum is rotatably arranged on the tower body; It also includes a plurality of blades, which are distributed in a fan shape based on the central axis of the tower body to capture air convection, and the plurality of blades are connected to the rotating drum through a connecting mechanism; A power generation mechanism is arranged in the tower base, and the power generation mechanism comprises a turbine generator, a gear box and a rotating shaft, the rotating shaft is drivingly connected to the drum, and the rotating shaft is drivingly connected to the rotor of the turbine generator through the gear box; The air convection in the environment drives the plurality of blades and the drum to rotate, and the drum then drives the rotor of the turbine generator to rotate through the transmission of the shaft and the gear box to generate electricity.

[0006] As an optional solution of the power generation device based on air convection described in the present invention, a cavity is opened inside the blade, reinforcing ribs are arranged on the blade, and the connecting mechanism includes a plurality of first sliding grooves circumferentially opened on the rotating drum, and Z-shaped rods are slidably arranged in the plurality of first sliding grooves, and the Z-shaped rods are connected to the blades through three connecting rods.

[0007] As an optional solution of the power generation device based on air convection described in the present invention, wherein: an adjustment mechanism is arranged in the tower body, and the adjustment mechanism comprises two first discs, the first disc located at the lower side is arranged in the tower body, and the first disc located at the upper side is arranged in the rotating drum, and a valve member is arranged on the first disc located at the upper side; The two first discs are both provided with air supply components, wherein half of the first chute is communicated with the upper port of the valve component through the first disc located at the upper side, and the other half of the first chute is communicated with the lower port of the valve component through the first disc located at the lower side, and the valve component is provided with an air bag, in which compressed gas is stored, and the inner cavity of the air bag is communicated with the inner cavity of the valve component through a plurality of connecting pipes; The regulating mechanism also includes a control component. When the plurality of blades rotate with the drum, the control component controls the airbag to rotate to the half of the first slide groove facing away from the wind direction according to the wind direction to introduce compressed gas, thereby causing the half of the Z-shaped rod and the blades facing away from the wind direction to move toward the outside of the tower body to expand the fan-shaped area and increase the amount of captured air convection.

[0008] As an optional solution of the power generation device based on air convection described in the present invention, the air supply component includes an air groove opened on the first disc, the air groove is connected with the port of the rotating drum, a second disc is arranged on the first disc, a third disc is arranged on the second disc, a connecting cavity is opened on the third disc, a first connecting hole is opened on the second disc, and the air groove is connected with the connecting cavity through the first connecting hole.

[0009] As an optional solution of the power generation device based on air convection described in the present invention, the air supply component also includes a second slide groove opened on the third disc, the second slide groove is connected to the connecting cavity through a second connecting hole, the Z-shaped rod is slidably connected in the second slide groove, and the Z-shaped rod is elastically connected to the inner wall of the second slide groove through a spring.

[0010] As an optional solution of the power generation device based on air convection described in the present invention, wherein: the control components are symmetrically arranged in two based on the valve component, the control component includes a valve core slidably arranged in the valve component, the valve core is provided with a guide rod, the guide rod is provided with a connecting plate, the connecting plate is provided with a pressure plate, and the pressure plate is arranged in a semi-circular shape and is tightly attached to the airbag.

[0011] As an optional solution of the power generation device based on air convection described in the present invention, wherein: a rotating disk is arranged on the rotating drum, a connecting disk is arranged on the rotating disk, and the rotating shaft is arranged on the connecting disk.

[0012] As an optional solution of the power generation device based on air convection of the present invention, wherein: the control component further comprises a guide groove opened in the rotating disk, and the guide rod is slidably connected in the guide groove; The guide groove includes a first arc segment, a second arc segment and two inclined segments, the first arc segment is close to the middle of the valve member, the second arc segment is far away from the middle of the valve member, and the two ends of the first arc segment are respectively connected to the two ends of the second arc segment through the two inclined segments.

[0013] As an optional solution of the power generation device based on air convection described in the present invention, wherein: the control component also includes a first sealing groove opened in the valve member, the first sealing groove is engaged with the port of the valve core, and a one-way valve is arranged in the valve core, and the one-way valve is used to limit the gas in the gas groove from flowing into the valve member in one direction; A sealing plate is arranged on the guide rod, a second sealing groove is opened on the valve member, and the sealing plate is slidably connected to the second sealing groove.

[0014] As an optional solution of the power generation device based on air convection described in the present invention, wherein: the first disc located on the upper side is rotatably connected to the rotating drum, and a wind vane is arranged on the first disc located on the upper side.

[0015] The present invention has the following beneficial effects: 1. This power generation device based on air convection captures air convection through a fan-shaped structure composed of several blades, and can effectively utilize the kinetic energy and thermal energy generated by air convection to generate electricity, while ensuring the stability of power supply and environmental sustainability. It is not limited by environmental wind speed and can generate electricity stably under various climatic conditions without interruption.

[0016] 2. This power generation device based on air convection occupies a small area, saves space and is easy to install. It combines air convection and turbine technology to improve energy conversion efficiency. Compared with windmills, it has less impact on regional climate and natural environment. It is also more suitable for the environment of desert or dry hot areas.

[0017] 3. The power generation device based on air convection is an improvement on the existing air convection power generation device. The area of ​​the fan-shaped structure that constitutes the air convection capture channel is not fixed, but can be automatically adjusted according to the wind direction. When half of the fan-shaped structure composed of a part of the blades rotates to the leeward side, several blades will automatically move outward based on the radius of the tower body, so that the area of ​​this half fan-shaped structure increases. Due to the obstruction of the tower body, there is a pressure difference between the two sides of the leeward side and the leeward side, and more air will be squeezed into the leeward side by the pressure difference. At this time, expanding the area of ​​the half fan-shaped structure located on the leeward side can increase the capture amount of air convection and increase the rotation speed. The area of ​​the half fan-shaped structure located on the windward side is smaller, and it can effectively resist wind resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of the present invention as a whole; Figure 3 For the present invention Figure 2 A schematic diagram of the local enlarged structure at point A in the middle; Figure 4 For the present invention Figure 2 A schematic diagram of the local enlarged structure at B in the middle; Figure 5 It is a schematic cross-sectional structural diagram of the turntable in the present invention; Figure 6 It is a schematic diagram of the explosion structure of the regulating mechanism in the present invention; Figure 7 It is a perspective structural schematic diagram of the guide groove in the present invention; Figure 8 It is a schematic diagram of the exploded structure of the control component in the present invention.

[0019] In the figure: 100, tower base; 110, tower body; 200, drum; 300, blades; 310, cavity; 320, reinforcing ribs; 400, connecting mechanism; 410, first slide groove; 420, Z-shaped rod; 430, connecting rod; 500, power generation mechanism; 510, turbine generator; 520, gear box; 530, shaft; 600, regulating mechanism; 610, first disc; 620, valve member; 630, air supply assembly; 631, air groove; 632, second disc; 633, third disc; 634, connecting cavity; 635, The first connecting hole; 636, the second slide groove; 637, the second connecting hole; 638, the spring; 640, the airbag; 650, the connecting pipe; 660, the control component; 661, the valve core; 662, the guide rod; 663, the connecting plate; 664, the pressure plate; 665, the guide groove; 6651, the first arc segment; 6652, the second arc segment; 6653, the inclined segment; 666, the first sealing groove; 667, the one-way valve; 668, the second sealing groove; 669, the sealing plate; 670, the turntable; 680, the connecting plate; 690, the weather vane. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] For example, see Figures 1-2 A power generation device based on air convection includes a tower base 100, wherein a tower body 110 is arranged on the tower base 100, and a rotating drum 200 is rotatably arranged on the tower body 110.

[0022] It also includes a plurality of blades 300 , which are distributed in a fan shape based on the central axis of the tower body 110 to capture air convection, and the plurality of blades 300 are connected to the rotating drum 200 through a connecting mechanism 400 .

[0023] A power generation mechanism 500 is arranged in the tower base 100 , and the power generation mechanism 500 includes a turbine generator 510 , a gear box 520 and a rotating shaft 530 . The rotating shaft 530 is transmission-connected to the drum 200 , and the rotating shaft 530 is transmission-connected to the rotor of the turbine generator 510 through the gear box 520 .

[0024] The air convection in the environment drives the blades 300 and the drum 200 to rotate, and the drum 200 drives the rotor of the turbine generator 510 to rotate through the transmission of the shaft 530 and the gear box 520 to generate electricity.

[0025] A cavity 310 is opened inside the blade 300, and a reinforcing rib 320 is arranged on the blade 300. The connecting mechanism 400 includes a plurality of first slide grooves 410 circumferentially opened on the rotating drum 200, and a Z-shaped rod 420 is slidably arranged in each of the plurality of first slide grooves 410. The Z-shaped rod 420 is connected to the blade 300 through three connecting rods 430.

[0026] In this embodiment: air convection power generation is based on the thermodynamic principle and is mainly based on the fact that the air is heated unevenly, the heated air expands and rises, while the cooled air sinks.

[0027] On the rotating drum 200 rotatably mounted on the top of the tower body 110, the blades 300 that surround the circle are in a fan-shaped structure with a large bottom and a small top. The fan-shaped structure establishes a channel for auxiliary air convection to capture air convection. Air convection exists in various natural environments for a long time, so several blades 300 and the rotating drum 200 can rotate continuously. For the specific aerodynamic principle of driving the blades 300 to rotate in a circle by air convection, reference can be made to the air convection power generation device with publication number CN201144767Y.

[0028] When the drum 200 rotates, the rotating shaft 530 is driven to rotate. The rotating shaft 530 drives the rotor of the turbine generator 510 to rotate through the transmission of the gear box 520. The turbine generator 510 generates current by driving the power generation module installed inside through the turbine. The kinetic energy of the air is converted into mechanical energy, and then the mechanical energy is converted into electrical energy. In addition, a voltage control module, a power output module and an auxiliary power supply can also be equipped. The output end of the power generation module is connected to a voltage control module for voltage stabilization to ensure the stability of the output voltage. The stable electric energy is transmitted to the connected electrical equipment through the power output module to complete the entire power generation process. The voltage control module and the auxiliary power supply ensure the stability of the power supply. The above-mentioned power generation module, power output module and voltage control module are conventional technical means, and their specific structures and working principles are not described in detail.

[0029] The blade 300 can be made of a fiber-reinforced resin composite material, which has the characteristics of stable structure, high strength, long service life, good anti-aging effect, etc. And it adopts the composite material process of pultrusion production. The blade 300 is hollow inside and has two reinforcing ribs 320 to enhance the structural strength. There are three connecting rods 430 corresponding to one blade 300, forming a triangular structure with strong stability and firm connection.

[0030] This device is not dependent on the ambient wind speed, has a wider range of application scenarios, and is more suitable for places such as dry and hot areas where the average wind volume is very small but there is sufficient ambient heat energy. In addition, it can also be used in buildings. By setting up an appropriate air circulation system and utilizing the temperature difference inside and outside the building, it can provide power for various equipment, thereby improving production efficiency.

[0031] Embodiment 2: This embodiment is an improvement on Embodiment 1. For details, please refer to Figures 2-6 An adjusting mechanism 600 is arranged in the tower body 110, and the adjusting mechanism 600 includes two first discs 610. The first disc 610 located at the lower side is arranged in the tower body 110, and the first disc 610 located at the upper side is arranged in the drum 200. A valve member 620 is arranged on the first disc 610 located at the upper side.

[0032] An air supply assembly 630 is provided on each of the two first discs 610, wherein half of the first chute 410 is connected to the upper port of the valve component 620 via the first disc 610 located on the upper side, and the other half of the first chute 410 is connected to the lower port of the valve component 620 via the first disc 610 located on the lower side. An air bag 640 is provided on the valve component 620, and compressed gas is stored in the air bag 640. The inner cavity of the air bag 640 is connected to the inner cavity of the valve component 620 via a plurality of connecting pipes 650.

[0033] The regulating mechanism 600 also includes a control component 660. When the plurality of blades 300 rotate with the rotating drum 200, the control component 660 controls the airbag 640 to introduce compressed gas into the half of the first slide groove 410 that rotates to the side facing away from the wind direction according to the wind direction, thereby causing the half of the Z-shaped rod 420 and the blades 300 on the side facing away from the wind direction to move toward the outside of the tower body 110 to expand the fan-shaped area and increase the amount of captured air convection.

[0034] The air supply assembly 630 includes an air groove 631 opened on the first disc 610, the air groove 631 is connected to the port of the rotating drum 200, a second disc 632 is arranged on the first disc 610, a third disc 633 is arranged on the second disc 632, a connecting cavity 634 is opened on the third disc 633, a first connecting hole 635 is opened on the second disc 632, and the air groove 631 is connected to the connecting cavity 634 through the first connecting hole 635.

[0035] The air supply assembly 630 also includes a second slide groove 636 opened on the third disk 633, the second slide groove 636 is connected to the connecting cavity 634 through a second connecting hole 637, the Z-shaped rod 420 is slidably connected in the second slide groove 636, and the Z-shaped rod 420 is elastically connected to the inner wall of the second slide groove 636 through a spring 638.

[0036] In this embodiment: Usually when the wind speed in the environment reaches a certain value, it will affect the capture of air convection. Since the drum 200 and the plurality of blades 300 rotate based on air convection, a high wind speed will also cause wind resistance to the rotation of the drum 200 and the plurality of blades 300.

[0037] For this purpose, a plurality of Z-shaped rods 420 are arranged to be retractable based on the radius direction of the drum 200. The first disc 610 located at the lower side is fixed to the tower body 110, while the second disc 632 and the third disc 633 are nested in the first disc 610 layer by layer, and their positions are also fixed. The drum 200 is rotatably connected to the third disc 633 located at the lower side. The first disc 610 at the upper side is rotatably mounted on the drum 200, and its position can be adjusted. The valve member 620 is fixed to the first disc 610 located at the upper side. The upper and lower ports of the valve member 620 can be rotatably connected to the ports of the two air grooves 631, and a sealing ring can be added to ensure the sealing performance.

[0038] The air groove 631 on the upper side is connected to the half of the first chute 410 on the left side, and is set as the blades 300 of group a. The air groove 631 on the lower side is connected to the half of the first chute 410 on the right side, and is set as the blades 300 of group b. When the blades 300 of group a rotate to the windward side, the blades 300 of group b are located on the leeward side. At this time, the air bag 640 fills the air groove 631 on the lower side with compressed gas.

[0039] The gas in the gas groove 631 passes through the first connecting hole 635, the connecting cavity 634, and the second connecting hole 637 in sequence to push the Z-shaped rod 420 to move outward, and the spring 638 is used to keep the Z-shaped rod 420 inside and reset in normal state. The Z-shaped rod 420 and the inner wall of the second slide groove 636 are well sealed, and the gas will not leak to the right side of the Z-shaped rod 420. As a result, the Z-shaped rod 420 and the blade 300 of group b move outward based on the radial direction of the tower body 110, so that the leeward part area of ​​the fan-shaped structure is increased to increase the amount of captured airflow.

[0040] Assuming that the airflow is from right to left, the tower body 110 is erected to block part of the space on its left side. At this time, since the airflow atmospheric pressure on the front and rear sides of the tower body 110 is small, more air will be squeezed into the left side of the tower body 110 from the front and rear sides. At this time, the fan-shaped structure of the left side is expanded to capture more air convection.

[0041] The half fan-shaped structure formed by the blades 300 of group a on the right side has a smaller area and can reduce wind resistance.

[0042] Embodiment 3: This embodiment is an improvement made on the basis of Embodiment 2. For details, please refer to Figures 1-8 Two control components 660 are symmetrically arranged based on the valve component 620. The control component 660 includes a valve core 661 slidably arranged in the valve component 620, a guide rod 662 is arranged on the valve core 661, a connecting plate 663 is arranged on the guide rod 662, a pressure plate 664 is arranged on the connecting plate 663, and the pressure plate 664 is arranged in a semi-circular shape and is tightly attached to the airbag 640.

[0043] The rotating drum 200 is provided with a rotating disk 670 , the rotating disk 670 is provided with a connecting disk 680 , and the rotating shaft 530 is provided on the connecting disk 680 .

[0044] The control assembly 660 further includes a guide slot 665 formed in the rotating disk 670 , and the guide rod 662 is slidably connected in the guide slot 665 .

[0045] The guide groove 665 includes a first arc segment 6651, a second arc segment 6652 and two inclined segments 6653. The first arc segment 6651 is close to the middle of the valve member 620, and the second arc segment 6652 is far away from the middle of the valve member 620. The two ends of the first arc segment 6651 are connected to the two ends of the second arc segment 6652 through the two inclined segments 6653 respectively.

[0046] The control component 660 also includes a first sealing groove 666 opened in the valve component 620, and the first sealing groove 666 is embedded in the port of the valve core 661. A one-way valve 667 is provided in the valve core 661, and the one-way valve 667 is used to limit the gas in the gas groove 631 to flow into the valve component 620 in one direction.

[0047] A sealing plate 669 is disposed on the guide rod 662 , a second sealing groove 668 is formed on the valve member 620 , and the sealing plate 669 is slidably connected to the second sealing groove 668 .

[0048] The first disc 610 located on the upper side is rotatably connected to the drum 200 , and a wind vane 690 is disposed on the first disc 610 located on the upper side.

[0049] In this embodiment, since the wind direction is variable, it is necessary to control the opening and closing of both ends of the valve member 620 according to the wind direction. First, the wind vane 690 extends outside the tower body 110, and can drive the first disc 610 and the valve member 620 located on the upper side to rotate according to the wind direction.

[0050] like Figure 3 As shown in , the positions of the drum 200 and the turntable 670 in the initial state are set such that the second arc segment 6652 is at the rear side and the first arc segment 6651 is at the front side. If the airflow direction is set from right to left, the wind vane 690 drives the valve member 620 to stay at the position where the upper guide rod 662 is located on the left side, and the lower guide rod 662 is located on the right side. When the half of the fan-shaped structure corresponding to group a rotates to the left side, the turntable 670 rotates with the drum 200 to the second arc segment 6652 and reaches the left side.

[0051] During the rotation process, the upper guide rod 662 passes through the inclined section 6653 from the first arc section 6651 in the upper guide groove 665 to the second arc section 6652, and the upper guide rod 662 is raised, while the lower guide rod 662 is still in the first arc section 6651 in the lower guide groove 665.

[0052] At this time, the valve core 661 at the lower side is engaged with the first sealing groove 666 at the lower side, and the one-way valve 667 at the lower side limits the airflow to only reach the middle of the valve member 620 from the bottom to the top. Therefore, the gas in the middle of the valve member 620 will not flow into the gas groove 631 at the lower side, and will not cause the half blades 300 of the group b to move outward. At this time, the fan-shaped structure formed by the half blades 300 on the windward side remains unchanged.

[0053] As the guide rod 662 on the upper side moves upward, the pressure plate 664 on the lower side connected to it through the connecting plate 663 moves upward, thereby squeezing the airbag 640, so that the compressed gas in the airbag 640 enters the middle part of the valve member 620 through the connecting pipes 650. At this time, the valve core 661 on the upper side moves upward along with the guide rod 662, and the valve core 661 is separated from the first sealing groove 666. At this time, the gas in the middle part of the valve member 620 can flow upward from the gap between the outer surface of the valve core 661 on the upper side and the inner wall of the valve member 620, thereby entering the upper gas groove 631, driving the blades 300 of group a to move outward, thereby expanding the area of ​​the half of the fan-shaped structure reaching the leeward side at this time.

[0054] When the drum 200 continues to rotate counterclockwise so that the upper guide rod 662 slides from the second arc segment 6652 to the first arc segment 6651, the upper guide rod 662 descends, and the airbag 640 is not squeezed and restored. Under the action of air pressure, the gas used to push the blades 300 of group a returns to the airbag 640 through the upper one-way valve 667.

[0055] This goes back and forth, and no matter which group of blades 300 constitutes a half of the fan-shaped structure, the area will be expanded when it rotates to the leeward side, and will be restored when it rotates to the windward side.

[0056] The sealing plate 669 slides in the second sealing groove 668 along with the guide rod 662. The length of the second sealing groove 668 is sufficient so that the sealing plate 669 can always be in the second sealing groove 668 to maintain the sealing performance.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A power generation device based on air convection, comprising a tower base (100), characterized in that: A tower body (110) is arranged on the tower base (100), and a rotating drum (200) is rotatably arranged on the tower body (110); It also includes a plurality of blades (300), wherein the plurality of blades (300) are distributed in a fan shape based on the central axis of the tower body (110) for capturing air convection, and the plurality of blades (300) are connected to the rotating drum (200) via a connecting mechanism (400); A power generation mechanism (500) is arranged in the tower base (100), the power generation mechanism (500) comprising a turbine generator (510), a gear box (520) and a rotating shaft (530), the rotating shaft (530) being transmission-connected to the rotating drum (200), and the rotating shaft (530) being transmission-connected to the rotor of the turbine generator (510) via the gear box (520); The plurality of blades (300) and the rotating drum (200) are driven to rotate by air convection in the environment, and the rotating drum (200) then drives the rotor of the turbine generator (510) to rotate through the transmission of the rotating shaft (530) and the gear box (520) to generate electricity.

2. The power generation device based on air convection according to claim 1, characterized in that: A cavity (310) is provided inside the blade (300), and a reinforcing rib (320) is provided on the blade (300). The connecting mechanism (400) comprises a plurality of first sliding grooves (410) circumferentially provided on the rotating drum (200), and a Z-shaped rod (420) is slidably provided in each of the plurality of first sliding grooves (410), and the Z-shaped rod (420) is connected to the blade (300) via three connecting rods (430).

3. The power generation device based on air convection according to claim 2, characterized in that: An adjusting mechanism (600) is arranged in the tower body (110), and the adjusting mechanism (600) comprises two first discs (610), wherein the first disc (610) located at the lower side is arranged in the tower body (110), and the first disc (610) located at the upper side is arranged in the rotating drum (200), and a valve member (620) is arranged on the first disc (610) located at the upper side; An air supply assembly (630) is provided on each of the two first discs (610), wherein half of the first chute (410) is communicated with an upper port of the valve component (620) via the first disc (610) located on the upper side, and the other half of the first chute (410) is communicated with a lower port of the valve component (620) via the first disc (610) located on the lower side, and an air bag (640) is provided on the valve component (620), wherein compressed gas is stored in the air bag (640), and an inner cavity of the air bag (640) is communicated with an inner cavity of the valve component (620) via a plurality of connecting pipes (650); The regulating mechanism (600) further comprises a control assembly (660). When the plurality of blades (300) rotate along with the rotating drum (200), the control assembly (660) controls the airbag (640) to pass compressed gas into the half of the first slide groove (410) that rotates to the side facing away from the wind direction according to the wind direction, thereby causing the half of the Z-shaped rod (420) and the blades (300) that are facing away from the wind direction to move toward the outside of the tower body (110) to expand the fan-shaped area and increase the amount of captured air convection.

4. The power generation device based on air convection according to claim 3, characterized in that: The air supply assembly (630) comprises an air groove (631) formed on the first disc (610), the air groove (631) being connected to a port of the rotating drum (200), a second disc (632) being arranged on the first disc (610), a third disc (633) being arranged on the second disc (632), a connecting cavity (634) being formed on the third disc (633), a first connecting hole (635) being formed on the second disc (632), and the air groove (631) being connected to the connecting cavity (634) via the first connecting hole (635).

5. The power generation device based on air convection according to claim 4, characterized in that: The air supply assembly (630) further includes a second slide groove (636) opened on the third disk (633), the second slide groove (636) being connected to the connecting cavity (634) via a second connecting hole (637), the Z-shaped rod (420) being slidably connected in the second slide groove (636), and the Z-shaped rod (420) being elastically connected to the inner wall of the second slide groove (636) via a spring (638).

6. The power generation device based on air convection according to claim 4, characterized in that: Two control assemblies (660) are symmetrically arranged based on the valve component (620), and the control assembly (660) includes a valve core (661) slidably arranged in the valve component (620), a guide rod (662) is arranged on the valve core (661), a connecting plate (663) is arranged on the guide rod (662), and a pressure plate (664) is arranged on the connecting plate (663), and the pressure plate (664) is arranged in a semi-annular shape and is tightly attached to the airbag (640).

7. The power generation device based on air convection according to claim 6, characterized in that: The rotating drum (200) is provided with a rotating disk (670), the rotating disk (670) is provided with a connecting disk (680), and the rotating shaft (530) is provided on the connecting disk (680).

8. The power generation device based on air convection according to claim 7, characterized in that: The control assembly (660) further comprises a guide groove (665) formed in the rotating disk (670), and the guide rod (662) is slidably connected in the guide groove (665); The guide groove (665) comprises a first arc segment (6651), a second arc segment (6652) and two inclined segments (6653); the first arc segment (6651) is close to the middle of the valve member (620), the second arc segment (6652) is far from the middle of the valve member (620), and two ends of the first arc segment (6651) are connected to two ends of the second arc segment (6652) via the two inclined segments (6653).

9. The power generation device based on air convection according to claim 8, characterized in that: The control assembly (660) further comprises a first sealing groove (666) provided in the valve member (620), the first sealing groove (666) being engaged with a port of the valve core (661), a one-way valve (667) being provided in the valve core (661), the one-way valve (667) being used to restrict the gas in the gas groove (631) from flowing into the valve member (620) in one direction; A sealing plate (669) is provided on the guide rod (662), a second sealing groove (668) is provided on the valve member (620), and the sealing plate (669) is slidably connected to the second sealing groove (668).

10. The power generation device based on air convection according to claim 3, characterized in that: The first disc (610) located on the upper side is rotatably connected to the rotating drum (200), and a wind vane (690) is provided on the first disc (610) located on the upper side.

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