A kind of wind turbine blade with vertical axis that can be opened and closed

Abstract

The present invention relates to the technical field related to wind turbine rotor blades, and discloses an openable and closable vertical axis wind turbine rotor blade, comprising a supporting base rod, a vertical rod is inserted and installed on the inner side of the supporting base rod, a base is installed on the bottom end of the supporting base rod, a vertical axis motor wind wheel is rotatably installed on the upper part of the vertical rod, a brake is installed on the bottom end of the vertical axis motor wind wheel, a raised speed control disk is fixedly connected to the bottom end of the brake, the upper and lower ends of the vertical axis motor wind wheel are fixedly connected to power storage plates, the four sides of the two power storage plates are fixedly connected to hub frames, the size specifications of the blades are extended by the wind blade assembly, the utilization and conversion of wind energy is improved, the opening and closing are convenient, and the blades are prevented from being damaged by excessive wind force, and the speed can be automatically reduced during high wind force use to prevent the wind motor from overloading, protect the normal use of the wind turbine generator and blades, and improve the overall use quality.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine rotor blades, and more specifically, to an openable and closable vertical axis wind turbine rotor blade. Background Art

[0002] Vertical-axis wind turbines do not need to face the wind when the wind direction changes, which is a major advantage over horizontal-axis wind turbines. It not only simplifies the structural design, but also reduces the gyroscopic force of the wind rotor facing the wind.

[0003] At present, the existing openable and closable vertical axis wind turbine rotor blades have the following shortcomings in use: because they are installed outdoors, they are inevitably subject to extremely windy weather. At this time, a reducer is required to slow down the rotor blades, and the reducer is also electronically started, so it is inevitable to encounter failures, requiring a large amount of maintenance. If maintenance is not timely, strong winds may easily cause the rotor blades to rotate too fast, causing the generator to overload and malfunction. Moreover, the size of the rotor blades is fixed. Although there is no need to consider the direction of the wind source, when the wind volume is small, the size of the blades cannot be adjusted in time, increasing the wind-receiving area, which will directly affect the efficiency and quality of power generation.

[0004] For example: The prior art discloses an automatic opening and closing device for the rotor blades of a vertical axis wind turbine with application number: CN102367785B, comprising a wind turbine, wherein the wind turbine comprises blades, wherein the blades have multiple blades, and the multiple blades are hinged to the wind turbine, wherein a rotating device and a positioning device are provided at the hinged portion between the blades and the wind turbine, and the rotating device causes the blades to rotate with the hinged portion between the blades and the wind turbine as the axis. Although this technology can avoid the damage to the rotor blades of the vertical axis wind turbine caused by strong winds and provide opening and closing protection, it will cause a short-term shutdown and inability to utilize wind energy, and it cannot be used in time, thereby reducing the efficiency of converting electrical energy.

[0005] The existing openable and closable vertical axis wind turbine rotor blades have the above-mentioned problems. In view of this, we propose an openable and closable vertical axis wind turbine rotor blade. Summary of the invention

[0006] The purpose of the present invention is to provide a vertical axis wind turbine rotor blade that can be opened and closed to overcome the above-mentioned defects in the prior art.

[0007] The present invention is achieved through the following technical solutions.

[0008] The invention discloses a wind turbine blade of a vertical axis wind turbine that can be opened and closed, comprising a supporting base rod, a vertical rod is inserted and installed on the inner side of the supporting base rod, a base is installed on the bottom end of the supporting base rod, a vertical axis motor wind wheel is rotatably installed on the upper part of the vertical rod, a brake is installed on the bottom end of the vertical axis motor wind wheel, a raised speed control disk is fixedly connected to the bottom end of the brake, power storage plates are fixedly connected to the upper and lower ends of the vertical axis motor wind wheel, hub frames are fixedly connected to the four sides of the two power storage plates, and a wind blade assembly is installed on one end of a plurality of hub frames Parts, the wind blade assembly includes main blades respectively fixedly installed on the ends away from the hub frame, and auxiliary blades are slidably arranged at the upper and lower ends of the main blades, and blade grooves are symmetrically opened on the sides close to each other, and linkage blocks are slidably arranged on the inner sides of the multiple blade grooves, and the linkage blocks are fixedly connected to the auxiliary blades. An auxiliary component is slidably arranged on the inner side of the hub frame, and a linkage control component is fixedly connected to the outer surface of the vertical pole, and a power assist component is rotatably mounted on the outer surface of the vertical pole, and an oil adding component is fixedly installed on the outer surface of the vertical pole.

[0009] Preferably, the auxiliary component includes a plurality of through slots symmetrically opened on the hub frame, a limiting frame is slidably installed between the plurality of through slots, the upper and lower ends of the limiting frame are respectively rotatably connected to inclined plates, the other ends of the two inclined plates are respectively rotatably connected to the linkage blocks, a cross bar is inserted and fixedly connected to the inner side of the limiting frame, a pressure plate is welded to the outer surface of the cross bar, the cross bar is located on one side of the pressure plate and is fitted with a first spring, one end of the cross bar passes through the vertical axis motor wind wheel and enters the interior thereof and is fixedly connected to a top rod.

[0010] Preferably, a servo stepper motor is installed between the multiple hub frames, and the output end of the servo stepper motor passes through the vertical axis motor wind wheel and enters the interior thereof, where a chuck is fixedly sleeved, and an irregular ring is fixedly connected to the outer surface of the chuck, and the top rod is used in conjunction with the irregular ring.

[0011] Preferably, a drainage port is provided at the bottom end of the brake, and the vertical rod is rotatably arranged with the brake.

[0012] Preferably, the joint control assembly includes a central rotating disk and a limiting block which are respectively fixedly mounted on the upper and lower surfaces of the vertical pole, a plurality of cylinders are equidistantly installed in a ring between the central rotating disk and the limiting block, an air chamber is arranged inside each of the plurality of cylinders, an upper piston is slidably arranged on the upper part of the air chamber, a deceleration rubber stick is fixedly connected to the middle part of the upper end of the upper piston, a second spring which cooperates with the upper piston is mounted inside the position of the deceleration rubber stick and the air chamber, one end of the deceleration rubber stick passes through the cylinder and the central rotating disk respectively and extends to the upper part, and the deceleration rubber stick is used in conjunction with the raised speed control disk.

[0013] Preferably, a floating ring is slidably sleeved on the outer surface of the vertical rod, and a plurality of piston rods are annularly fixedly connected to the upper surface of the floating ring, and the piston rods pass through the cylinder and enter the air chamber.

[0014] Preferably, the power assist assembly comprises a rotating wheel rotatably mounted on the outer surface of the vertical pole, a plurality of propellers are mounted on the outer surface of the rotating wheel, and a base frame corresponding to the rotating wheel is mounted on the upper portion of the supporting base pole.

[0015] Preferably, a light spiral blade is installed on the upper end of the runner, and the light spiral blade is in conflict with the floating ring.

[0016] Preferably, the oil adding assembly includes a plurality of lubricating oil cylinders annularly fixedly installed on the outer surface of the vertical pole, the bottom end of the lubricating oil cylinder is fixedly connected to a first hose, the first hose is connected to the air chamber, and the upper end of the lubricating oil cylinder is fixedly connected to a second hose through a turntable.

[0017] Preferably, a plurality of force measuring rods are fixedly connected to the upper surface of the central rotating disk in an annular manner and at equal intervals, the upper ends of the plurality of force measuring rods are commonly connected to an outer ring, and the second hose is interlaced with the outer ring.

[0018] Beneficial effects of the present invention:

[0019] 1. In an openable and closable vertical axis wind turbine rotor blade of the present invention, the rotation of the chuck drives the irregular ring to rotate inside the vertical axis motor rotor, so that the top rod drives the cross bar to move and the pressure plate compresses the first spring, while driving the limiting frame to slide in the through groove, pushing the inclined plate upward during sliding to push the linkage block to slide upward in the blade groove, and then the auxiliary blades extend from the main blades respectively, thereby expanding to increase the force-bearing surface of the wind rotor blades, which is helpful for the opening and closing of the wind rotor blades and the conversion of wind energy, and effectively controlling the blade specifications according to the size of the wind force, to avoid the fixed wind rotor blades in the case of uncontrollable strong winds, increasing the load of the wind turbine generator, and failing to protect the wind rotor blades from damage while utilizing wind energy.

[0020] 2. In the wind rotor blade of a vertical axis wind turbine that can be opened and closed of the present invention, the lightweight spiral blades and the propeller are blown by the overload strong wind, which can assist the propeller to drive the rotor to rotate on the outer surface of the vertical pole to generate an upward force, and then the floating ring is pushed to rise vertically, and then the piston rod is pushed into the cylinder to squeeze the gas in the air chamber upward, and the upper piston slides and rises in the air chamber, and at the same time squeezes the second spring, and when the deceleration rubber stick moves upward, it conflicts with the raised speed control disk, so that the raised speed control disk is decelerated and acts on the wind rotor of the vertical axis motor to slow it down, and after the air pressure increases after the piston rod is pushed upward, the gas enters the first hose to push out the lubricating oil in the lubricating oil cylinder, and is sent to the drainage port through the second hose for infiltration, which helps to automatically slow down the wind turbine as a whole to within the load according to the wind force, prevent the speed from being too fast and affecting the use of the wind rotor blades and the generator, and ensure safety. At the same time, the connection point between the wind rotor and the vertical pole can be oiled and maintained to avoid dry friction, reduce manual maintenance costs and improve wind energy conversion efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the present invention from another external perspective;

[0025] Figure 3 yes Figure 1 Schematic diagram of the decomposed structure;

[0026] Figure 4 yes Figure 1 Schematic diagram of the structure from the middle side;

[0027] Figure 5 yes Figure 1 A schematic diagram of an enlarged cross-section of the wind wheel of the central vertical axis motor;

[0028] Figure 6 yes Figure 1 A schematic diagram of the enlarged structure of the central control component and the oil adding component;

[0029] Figure 7 yes Figure 1 The enlarged structural diagram at A in the middle;

[0030] Figure 8 yes Figure 1 Schematic diagram of the structure of the middle piston rod;

[0031] Fig. 9 yes Figure 1 Schematic diagram of the structure viewed from above. DETAILED DESCRIPTION

[0032] Combine the following Figure 1-9 The present invention is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front, and back directions mentioned below are the same as Figure 1 The up-down, left-right, front-back directions of the projection relationship itself are consistent.

[0033] Combined with Figure 1-9 A wind turbine rotor blade of a vertical axis wind turbine that can be opened and closed comprises a support base rod 2, a vertical rod 3 is inserted and installed on the inner side of the support base rod 2, a base 16 is installed on the bottom end of the support base rod 2, a vertical axis motor wind wheel 1 is rotatably installed on the upper part of the vertical rod 3, a brake 42 is installed on the bottom end of the vertical axis motor wind wheel 1, a raised speed control disk 13 is fixedly connected to the bottom end of the brake 42, and a power storage plate 12 is fixedly connected to the upper and lower ends of the vertical axis motor wind wheel 1, and the four sides of the two power storage plates 12 are fixed A hub frame 4 is connected, and one end of each of the hub frames 4 is equipped with a wind blade assembly 551. The wind blade assembly 551 includes main blades 7 respectively fixedly installed on the ends away from the hub frame 4. The upper and lower ends of the main blades 7 are interspersed and slidably arranged with auxiliary blades 8. The sides of the main blades 7 that are close to each other are symmetrically provided with blade grooves 6. The inner sides of the multiple blade grooves 6 are all slidably arranged with linkage blocks 9. The linkage blocks 9 are fixedly connected to the auxiliary blades 8. The inner side of the hub frame 4 is slidably arranged with auxiliary components 551. 2. The outer surface of the vertical rod 3 is fixedly connected with a joint control component 554, and the outer surface of the vertical rod 3 is fixedly installed with an oil adding component 555. The auxiliary component 552 includes a plurality of through grooves 21 symmetrically opened on the hub frame 4, and a limiting frame 23 is slidably installed between the plurality of through grooves 21. The upper and lower ends of the limiting frame 23 are respectively rotatably connected to the inclined plates 17, and the other ends of the two inclined plates 17 are respectively rotatably connected to the linkage blocks 9. A cross bar 22 is inserted and fixedly connected to the inner side of the limiting frame 23, and a pressure plate 25 is welded on the outer surface of the cross bar 22. The cross bar 22 is located on one side of the pressure plate 25 and is sleeved with a first spring 24. One end of the cross bar 22 passes through the vertical axis motor wind wheel 1 and enters its interior and is fixedly connected with a push rod 26. A servo stepper motor 10 is commonly installed between the plurality of hub frames 4. The output end of the servo stepper motor 10 passes through the vertical axis motor wind wheel 1 and enters its interior and is fixedly sleeved with a chuck 29. The outer surface of the chuck 29 is fixedly connected with an irregular ring 27, and the push rod 26 is used in conjunction with the irregular ring 27.

[0034] According to the above technical solution, after the servo stepper motor 10 is operated, the output end drives the chuck 29 to rotate, thereby driving the irregular ring 27 to rotate inside the vertical axis motor wind wheel 1. When rotating, the outer edge of the irregular ring 27 conflicts with the top rod 26, so that the top rod 26 drives the cross bar 22 to move and the pressure plate 25 compresses the first spring 24. At the same time, the cross bar 22 drives the limiting frame 23 to slide in the through groove 21. When the limiting frame 23 slides, it pushes the inclined plate 17 to move. Under the push of the inclined plate 17, the linkage block 9 slides upward in the blade groove 6. After the linkage block 9 slides, the auxiliary blades 8 extend from the main blades 7 respectively, thereby expanding and increasing the force-bearing surface of the wind wheel blades, which is helpful for the conversion of wind force. The size of the blades is controlled according to the size of the wind force to avoid the situation where the wind blades cannot be adjusted and the load of the wind turbine generator is increased under special circumstances, and the wind energy cannot be utilized while protecting the wind wheel blades from damage.

[0035] According to a further technical solution, a drainage port 28 is provided at the bottom end of the brake 42 , and the upright rod 3 and the brake 42 are rotatably arranged.

[0036] According to the above technical solution, electrical energy is converted to the vertical axis motor wind wheel 1 through the rotation of the wind wheel blades, and the brake 42 controls the rotation speed of the vertical axis motor wind wheel 1. Therefore, the drainage port 28 delivers the maintenance fluid to ensure the flexibility of the brake 42 and the vertical pole 3, which can prevent dry wear.

[0037] A further technical solution is that the joint control component 554 includes a central rotating disk 33 and a limiting block 37 which are respectively fixedly mounted on the upper and lower surfaces of the vertical rod 3, and a plurality of cylinders 11 are equidistantly installed in a ring between the central rotating disk 33 and the limiting block 37. An air chamber 43 is arranged inside each of the plurality of cylinders 11, and an upper piston 35 is slidably arranged on the upper part of the air chamber 43. A deceleration rubber stick 31 is fixedly connected to the middle part of the upper end of the upper piston 35, and a second spring 34 used in conjunction with the upper piston 35 is mounted between the deceleration rubber stick 31 and the interior of the air chamber 43. One end of the deceleration rubber stick 31 passes through the cylinder 11 and the central rotating disk 33 respectively and extends to the upper part. The deceleration rubber stick 31 is used in conjunction with the raised speed control disk 13, and a floating ring 41 is slidably mounted on the outer surface of the vertical rod 3, and a plurality of piston rods 14 are fixedly connected in a ring on the upper surface of the floating ring 41, and the piston rod 14 passes through the cylinder 11 and enters the air chamber 43.

[0038] According to the above technical solution, the floating ring 41 rises vertically, and the piston rod 14 is pushed into the cylinder 11, and the gas in the air chamber 43 is squeezed upward, thereby pushing the upper piston 35 to slide and rise in the air chamber 43, and squeezing the second spring 34 while pushing the deceleration rubber stick 31 to rise. When the deceleration rubber stick 31 moves upward, it conflicts with the raised speed control disk 13, so that the raised speed control disk 13 is decelerated and acts on the vertical axis motor wind wheel 1 to slow it down, which helps to automatically slow down the wind turbine, prevent the excessive speed from affecting the wind wheel blades and the generator, and ensure safety.

[0039] A further technical solution is that the outer surface of the vertical pole 3 is rotatably sleeved with a power-assisting component 553, the power-assisting component 553 includes a rotating wheel 40 rotatably sleeved on the outer surface of the vertical pole 3, a plurality of propellers 18 are installed on the outer surface of the rotating wheel 40, a base frame 19 corresponding to the rotating wheel 40 is installed on the upper part of the supporting base rod 2, a lightweight spiral blade 15 is installed on the upper end of the rotating wheel 40, and the lightweight spiral blade 15 conflicts with the floating ring 41, and the oil adding component 555 includes a plurality of lubricating oil cylinders 20 annularly fixedly installed on the outer surface of the vertical pole 3, the bottom end of the lubricating oil cylinder 20 is fixedly connected with a first hose 36, the first hose 36 is connected with the air chamber 43, the upper end of the lubricating oil cylinder 20 is fixedly connected with a second hose 39 through the middle rotating disk 33, a plurality of force measuring rods 32 are annularly equidistantly fixedly connected to the upper surface of the middle rotating disk 33, the upper ends of the plurality of force measuring rods 32 are commonly connected with an outer ring 30, and the second hose 39 is interspersed with the outer ring 30.

[0040] According to the above technical solution, the power assist component 553 is set up. When encountering strong wind during use, the lightweight spiral blade 15 and the propeller 18 are blown to move respectively. Under the rotation movement of the lightweight spiral blade 15, the propeller 18 can be assisted to drive the runner 40 to rotate on the outer surface of the vertical pole 3, thereby generating an upward force. After the piston rod 14 pushes upward and the air pressure increases, the gas enters the first hose 36 to push the lubricating oil in the lubricating oil cylinder 20 out, and is sent to the drainage port 28 through the second hose 39 for infiltration.

[0041] Specific use of the present invention:

[0042] In the wind rotor blade of a vertical axis wind turbine generator that can be opened and closed of the present invention, the switch of the servo stepper motor 10 is automatically turned on according to the size of the wind force. After operation, the output end drives the chuck 29 to rotate, thereby driving the irregular ring 27 to rotate inside the wind rotor 1 of the vertical axis motor. During rotation, the outer edge of the irregular ring 27 conflicts with the top rod 26, so that the top rod 26 drives the cross bar 22 to move, and the pressure plate 25 compresses the first spring 24. At the same time, the cross bar 22 drives the limiting frame 23 to slide in the through groove 21. When the limiting frame 23 slides, it pushes the inclined plate 17 to move. Under the push of the inclined plate 17, the linkage block 9 slides upward in the blade groove 6. After the linkage block 9 slides, the auxiliary blades 8 extend from the main blades 7 respectively, thereby expanding to increase the force-bearing surface of the wind rotor blades. When the servo stepper motor 10 is reset, the irregular ring 27 does not conflict with the top rod 26, thereby allowing the second spring 34 to recover, so that the limiting frame 23 is reset, driving the inclined plate 17 to shrink the auxiliary blades 8 to the main blades 7. The power assist component 553 is provided, when the wind is strong during use, the light spiral blade 15 and the propeller 18 are blown to move respectively, and the rotation of the light spiral blade 15 can assist the propeller 18 to drive the runner 40 to rotate on the outer surface of the vertical rod 3, thereby generating an upward force, thereby pushing the floating ring 41 to rise vertically, pushing the piston rod 14 into the cylinder 11, and squeezing the gas in the air chamber 43 upward, thereby pushing the upper piston 35 to slide and rise in the air chamber 43, and squeezing the second spring 34 while pushing the deceleration rubber stick 31 to rise. When the deceleration rubber stick 31 moves upward, it conflicts with the raised speed control disk 13, so that the raised speed control disk 13 is decelerated and acts on the vertical axis motor wind wheel 1 to reduce its speed. After the piston rod 14 is pushed upward, the air pressure increases, and the gas enters the first hose 36 to push out the lubricating oil in the lubricating oil cylinder 20, and is sent to the drainage port 28 through the second hose 39 for infiltration.

[0043] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology in this field to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A closable vertical axis wind turbine rotor blade, characterized in that: The invention comprises a support base rod (2), a vertical rod (3) is inserted and installed on the inner side of the support base rod (2), a base (16) is installed on the bottom end of the support base rod (2), a vertical axis motor wind wheel (1) is rotatably installed on the upper part of the vertical rod (3), a brake (42) is installed on the bottom end of the vertical axis motor wind wheel (1), a raised speed control disk (13) is fixedly connected to the bottom end of the brake (42), the upper and lower ends of the vertical axis motor wind wheel (1) are fixedly connected to power storage plates (12), the four sides of the two power storage plates (12) are fixedly connected to hub frames (4), one end of each of the plurality of hub frames (4) is installed with a wind blade assembly (551), and the wind blade assembly (551) includes The invention comprises main blades (7) respectively fixedly mounted on the ends away from the hub frame (4), auxiliary blades (8) are inserted and slidably arranged at the upper and lower ends of the main blades (7), blade grooves (6) are symmetrically opened on the sides close to each other of the main blades (7), linkage blocks (9) are slidably arranged on the inner sides of the plurality of blade grooves (6), and the linkage blocks (9) are fixedly connected to the auxiliary blades (8), an auxiliary component (552) is slidably arranged on the inner side of the hub frame (4), a linkage control component (554) is fixedly connected to the outer surface of the vertical rod (3), a power assist component (553) is rotatably mounted on the outer surface of the vertical rod (3), and an oil adding component (555) is fixedly installed on the outer surface of the vertical rod (3).

2. The retractable vertical axis wind turbine rotor blade according to claim 1 is characterized by: The auxiliary component (552) comprises a plurality of through slots (21) symmetrically arranged on the hub frame (4), a limiting frame (23) being slidably mounted between the plurality of through slots (21), the upper and lower ends of the limiting frame (23) being rotatably connected to the inclined plates (17), the other ends of the two inclined plates (17) being rotatably connected to the linkage blocks (9), a cross bar (22) being inserted and fixedly connected to the inner side of the limiting frame (23), a pressure plate (25) being welded to the outer surface of the cross bar (22), a first spring (24) being mounted on one side of the pressure plate (25), one end of the cross bar (22) passing through the vertical axis motor impeller (1) and entering the interior thereof and being fixedly connected to a top rod (26).

3. The retractable vertical axis wind turbine rotor blade according to claim 2 is characterized by: A servo stepper motor (10) is installed between the plurality of hub frames (4); the output end of the servo stepper motor (10) passes through the vertical axis motor wind wheel (1) and enters the interior thereof to be fixedly sleeved with a chuck (29); an irregular ring (27) is fixedly connected to the outer surface of the chuck (29); and the top rod (26) is used in conjunction with the irregular ring (27).

4. The retractable vertical axis wind turbine rotor blade according to claim 1 is characterized by: A drainage port (28) is provided at the bottom end of the brake (42), and the vertical rod (3) and the brake (42) are rotatably arranged.

5. The retractable vertical axis wind turbine rotor blade according to claim 1 is characterized by: The joint control component (554) comprises a central rotating disk (33) and a limiting block (37) which are respectively fixedly mounted on the upper and lower surfaces of the vertical rod (3); a plurality of cylinders (11) are equidistantly mounted in a ring between the central rotating disk (33) and the limiting block (37); a plurality of cylinders (11) are arranged inside the plurality of cylinders (11); an upper piston (35) is slidably mounted on the upper part of the air chamber (43); a deceleration rubber stick (31) is fixedly connected to the middle part of the upper end of the upper piston (35); a second spring (34) used in conjunction with the upper piston (35) is mounted between the deceleration rubber stick (31) and the air chamber (43); one end of the deceleration rubber stick (31) passes through the cylinder (11) and the central rotating disk (33) respectively and extends to the upper part; the deceleration rubber stick (31) is used in conjunction with the raised speed control disk (13).

6. The retractable vertical axis wind turbine rotor blade according to claim 5 is characterized by: The outer surface of the vertical rod (3) is slidably sleeved with a floating ring (41), and the upper surface of the floating ring (41) is annularly fixedly connected with a plurality of piston rods (14), and the piston rods (14) pass through the cylinder (11) and enter the air chamber (43).

7. The retractable vertical axis wind turbine rotor blade according to claim 1 is characterized by: The power assist assembly (553) comprises a rotating wheel (40) rotatably mounted on the outer surface of the vertical pole (3), a plurality of propellers (18) being mounted on the outer surface of the rotating wheel (40), and a base frame (19) corresponding to the rotating wheel (40) being mounted on the upper part of the supporting base pole (2).

8. The retractable vertical axis wind turbine rotor blade according to claim 7 is characterized by: A light spiral blade (15) is installed at the upper end of the rotating wheel (40), and the light spiral blade (15) is in conflict with the floating ring (41).

9. The retractable vertical axis wind turbine rotor blade according to claim 1 is characterized by: The oil adding assembly (555) comprises a plurality of lubricating oil cylinders (20) fixedly mounted in an annular shape on the outer surface of the vertical pole (3); the bottom end of the lubricating oil cylinder (20) is fixedly connected to a first hose (36), the first hose (36) is connected to the air chamber (43); the upper end of the lubricating oil cylinder (20) passes through the middle turntable (33) and is fixedly connected to a second hose (39).

10. The retractable vertical axis wind turbine rotor blade according to claim 9, characterized in that: A plurality of force measuring rods (32) are fixedly connected to the upper surface of the middle rotating disk (33) in an annular manner and at equal intervals, the upper ends of the plurality of force measuring rods (32) are commonly connected to an outer ring (30), and the second hose (39) is interlaced with the outer ring (30).

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