Adjustable blade for wind power generation

Abstract

The utility model relates to the technical field of wind power generation blades, in particular to an adjustable blade for wind power generation. The technical problems that a wind power generation device lacks a contraction or folding function, and the rotating speed cannot be controlled in severe weather are solved. According to the technical scheme, the device comprises a bottom plate and a wind power column, the wind power column is fixedly connected to the bottom plate, the device further comprises a wind energy transmission shell, the top of the wind power column is rotationally connected with the wind energy transmission shell, and a transmission mechanism is arranged in the wind energy transmission shell and used for providing device movement. Through cooperative use of a clamping ring and a speed reduction shaft, a rotating rod can be decelerated, so that the rotating speed of the rotating rod is controlled, damage to components and blades in the device caused by too high rotating speed is avoided, through cooperation of a driving motor, a threaded rod, a movable ring and a second hinge rod, the blades can be stored in a telescopic shell, and the device is convenient to use. Therefore, the blades are protected, and the situation that the blades are impacted by sand and stone particles mixed in fierce wind, and the blades are damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation blades, in particular to an adjustable blade for wind power generation. Background Technique

[0002] Wind power generation refers to a power generation method that uses wind energy to drive a wind turbine generator set, which has no problems such as fuel transportation, ash residue treatment, and environmental pollution. However, wind energy is random and is only applicable to areas with strong and continuous winds. Wind power generation blades are the core components that convert natural wind energy into electrical energy in wind turbine generator sets and are also the main basis for measuring the design and technical level of wind turbine generator sets.

[0003] The blades of existing household wind power generation devices lack the function of shrinking or folding. When encountering strong winds and bad weather suddenly, hard substances such as sand and gravel particles will be mixed in the strong wind, and these hard substances will directly impact the blades, resulting in blade damage and the inability of the household wind power generation device to operate normally. Moreover, in bad weather, the strong wind will cause the household wind power generation device to rotate too fast, and rotating too fast easily damages the internal components and blades of the device, and in severe cases, it will even cause the household wind power generation device to be unusable. For this reason, an adjustable blade for wind power generation is proposed. Content of the Utility Model

[0004] In order to overcome the shortcomings that existing wind power generation devices lack the function of shrinking or folding and cannot control the rotation speed in bad weather.

[0005] The technical implementation solution of the utility model is as follows: An adjustable blade for wind power generation, including a bottom plate and a wind power column, the wind power column is fixedly connected to the bottom plate, and further includes a wind energy transmission shell, the top of the wind power column is rotatably connected to the wind energy transmission shell, a transmission mechanism is arranged inside the wind energy transmission shell, the transmission mechanism includes a speed limit shell, the speed limit shell is installed inside the wind energy transmission shell, a speed reduction shaft is fixedly connected inside the speed limit shell, a clamping ring is rotatably connected to the inner wall of the speed reduction shaft, a plurality of second clamping blocks are fixedly connected to the circumference of one side of the clamping ring, a rotating rod is rotatably connected to the inner wall of the clamping ring, one end of the rotating rod is rotatably connected to the speed limit shell, a plurality of first sliding grooves are formed on the surface of the rotating rod, first clamping blocks are slidably connected to the first sliding grooves of the rotating rod respectively, the first clamping blocks can contact the second clamping blocks when moving, one end of the rotating rod penetrates through the wind energy transmission shell and is fixedly connected to a telescopic shell, a plurality of second sliding grooves are formed inside the telescopic shell, sliding blocks are slidably connected to the second sliding grooves of the telescopic shell respectively, a fixing rod is fixedly connected to one side of each of the plurality of sliding blocks, a connecting shaft is fixedly connected to one end of the fixing rod, a first half gear is rotatably connected to the outer wall of the connecting shaft, blades are symmetrically hinged to the outer wall of the connecting shaft, the first half gear is fixedly connected to one of the blades, a second half gear is fixedly connected to the other blade, the first half gear and the second half gear are meshed with each other, fixing plates are fixedly connected to one side of each of the two blades, and a first elastic member is connected between the two fixing plates.

[0006] Preferably, it further includes a first hinge rod. A protrusion is fixedly connected to the outer wall of the fixed rod. One end of the protrusion is hinged to the first hinge rod. A number of L-shaped grooves are penetratively formed on one side of the telescopic shell. A first rotating shaft is fixedly connected to the inner side of the L-shaped groove. A C-shaped ejector rod is connected to the outer wall of the first rotating shaft. A second elastic member is provided on the surface of the first rotating shaft. When the first hinge rod moves, it can contact one end of the C-shaped ejector rod. A cleaning mechanism is provided on one side of the telescopic shell, and the cleaning mechanism is used to clean the surface of the blade.

[0007] Preferably, the transmission mechanism further includes a driving motor. The driving motor is installed on one side of the speed-limiting shell. A threaded rod is fixedly connected to the output shaft of the driving motor. The threaded rod penetrates through the wind energy transmission shell and is threadedly connected to a moving ring. One side of the moving ring is slidably connected to a sliding rod. One end of the sliding rod penetrates through the wind energy transmission shell and is fixedly connected to the speed-limiting shell. A number of second hinge rods are hinged to the outer wall of the moving ring, and the other ends of the number of second hinge rods are all hinged to the sliding block.

[0008] Preferably, the cleaning mechanism includes a cleaning shell. A number of groups of cleaning shells are fixedly connected to one side of the telescopic shell. A triangular groove is formed inside the cleaning shell. An absorption film is connected to one end of the cleaning shell. A plurality of water tanks are formed in the triangular groove, and the plurality of water tanks are connected by a conduit.

[0009] Preferably, the cleaning mechanism further includes a storage tank. The storage tank is installed inside the cleaning shell. The top end of the storage tank is connected to the conduit. A number of water spraying valves are provided on one side of the storage tank. A trigger switch is provided on the top of the storage tank, and the trigger switch is electrically connected to the four water spraying valves.

[0010] Preferably, the cleaning mechanism further includes a second rotating shaft. The second rotating shaft is rotatably connected to the inner wall of the cleaning shell. A rubber wheel is fixedly connected to the outer wall of the second rotating shaft. A convex block is fixedly connected to one end of the second rotating shaft. When the convex block moves, it can contact the trigger switch. A number of cleaning cottons are fixedly connected inside the cleaning shell.

[0011] Preferably, it further includes a round shaft. The round shaft is fixedly connected to the top of the wind energy transmission shell. A wind vane is rotatably connected to the outer wall of the round shaft. A wind direction driver is installed inside the wind energy transmission shell, and the wind vane is electrically connected to the wind direction driver.

[0012] Preferably, it further includes a second gear. The second gear is rotatably connected to the bottom side of the wind energy transmission shell. The output shaft of the wind direction driver penetrates through the wind energy transmission shell and is connected to the second gear. One end of the wind power column is fixedly connected to a first gear. The first gear is rotatably connected to the wind energy transmission shell, and the first gear meshes with the second gear.

[0013] Compared with the prior art, the present utility model has the following advantages:

[0014] According to the present utility model, an adjustable blade for wind power generation is provided. By the combined use of a clamping ring and a reduction shaft, the rotation rod can be decelerated, thereby controlling the rotation speed of the rotation rod and avoiding damage to the internal components of the device and the blade caused by excessive rotation speed. Through the cooperation of a driving motor, a threaded rod, a moving ring and a second hinge rod, the blade can be retracted into the telescopic housing to protect the blade and avoid damage to the blade caused by the impact of sand and gravel particles mixed in the strong wind. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic three-dimensional structure diagram of the present utility model;

[0016] Figure 2 Schematic structure diagram of the rotation rod of the present utility model;

[0017] Figure 3 Schematic structure diagram of the sliding block of the present utility model;

[0018] Figure 4 Cross-sectional view of the structure of the clamping ring of the present utility model;

[0019] Figure 5 Schematic structure diagram of the C-shaped ejector rod of the present utility model;

[0020] Figure 6 Schematic structure diagram of the absorption film of the present utility model;

[0021] Figure 7 Schematic structure diagram of the convex block of the present utility model;

[0022] Figure 8 Schematic structure diagram of the conduit of the present utility model;

[0023] Figure 9 Schematic structure diagram of the wind energy transmission housing of the present utility model.

[0024] Meanings of the reference numerals in the figures: 1, base plate; 101, wind power column; 102, first gear; 103, second gear; 2, wind energy transmission housing; 201, speed limit housing; 202, rotating rod; 203, drive motor; 204, threaded rod; 205, moving ring; 206, slide bar; 207, wind direction driver; 208, round shaft; 209, wind vane; 210, first clamping block; 211, clamping ring; 212, reduction shaft; 213, second clamping block; 3, telescopic housing; 301, sliding block; 302, fixed rod; 303, connecting shaft; 304, blade; 305, first half gear; 306, first articulated rod; 307, C-shaped ejector rod; 308, second articulated rod; 309, second half gear; 310, first rotating shaft; 311, fixing plate; 4, cleaning housing; 401, absorption film; 402, water tank; 403, conduit; 404, storage tank; 405, water spray valve; 406, rubber wheel; 407, bump; 408, trigger switch; 409, second rotating shaft; 410, cleaning cotton. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1

[0027] An adjustable blade for wind energy power generation, as Figures 1-9As shown in the figure, it includes a bottom plate 1 and a wind column 101. The wind column 101 is fixedly connected to the bottom plate 1. It also includes a wind energy transmission shell 2. The top of the wind column 101 is rotatably connected to the wind energy transmission shell 2. A transmission mechanism is arranged inside the wind energy transmission shell 2. The transmission mechanism includes a speed limit shell 201. The speed limit shell 201 is installed on the inner side of the wind energy transmission shell 2. A reduction shaft 212 is fixedly connected inside the speed limit shell 201. A clamping ring 211 is rotatably connected to the inner wall of the reduction shaft 212. Four second clamping blocks 213 are fixedly connected to the circumference of one side of the clamping ring 211. A rotating rod 202 is rotatably connected to the inner wall of the clamping ring 211. One end of the rotating rod 202 is rotatably connected to the speed limit shell 201. Four first sliding grooves are formed on the surface of the rotating rod 202. First clamping blocks 210 are slidably connected to the first sliding grooves of the rotating rod 202. When the rotating speed of the rotating rod 202 is too fast, the first clamping blocks 210 can be thrown out along the first sliding grooves of the rotating rod 202. When the first clamping blocks 210 move, they can contact the second clamping blocks 213. One end of the rotating rod 202 penetrates through the wind energy transmission shell 2 and is fixedly connected to a telescopic shell 3. Three second sliding grooves are formed inside the telescopic shell 3. Sliding blocks 301 are slidably connected to the second sliding grooves of the telescopic shell 3. Fixed rods 302 are fixedly connected to one side of the three sliding blocks 301. One end of each of the three fixed rods 302 is fixedly connected to a connecting shaft 303. A first half gear 305 is rotatably connected to the outer wall of the connecting shaft 303. Blades 304 are symmetrically hinged to the outer wall of the connecting shaft 303. The first half gear 305 is fixedly connected to one of the blades 304. A second half gear 309 is fixedly connected to the other blade 304. The first half gear 305 and the second half gear 309 are meshed with each other. Fixing plates 311 are fixedly connected to one side of the two blades 304. A first elastic member is connected between the two fixing plates 311. The first elastic member is an arc-shaped spring.

[0028] It also includes a first hinge rod 306. A protrusion is fixedly connected to the outer wall of the fixed rod 302. One end of the protrusion is hinged to the first hinge rod 306. A torsion spring is connected between the protrusion and the first hinge rod 306. Three L-shaped grooves are formed in a penetrating manner on one side of the telescopic shell 3. First rotating shafts 310 are fixedly connected to the inner sides of the three L-shaped grooves. A C-shaped ejector rod 307 is connected to the outer wall of the first rotating shaft 310. A second elastic member is arranged on the surface of the first rotating shaft 310. The second elastic member is a torsion spring. One end of the torsion spring is connected to the L-shaped groove, and the other end of the torsion spring is connected to the C-shaped ejector rod 307. When the first hinge rod 306 moves, it can contact one end of the C-shaped ejector rod 307. A cleaning mechanism is arranged on one side of the telescopic shell 3. The cleaning mechanism is used to clean the surfaces of the blades 304.

[0029] The transmission mechanism further includes a driving motor 203. The driving motor 203 is installed on one side of the speed limit housing 201. A threaded rod 204 is fixedly connected to the output shaft of the driving motor 203. The threaded rod 204 penetrates through the wind energy transmission housing 2 and is threadedly connected to a moving ring 205. A sliding rod 206 is slidably connected to one side of the moving ring 205. One end of the sliding rod 206 penetrates through the wind energy transmission housing 2 and is fixedly connected to the speed limit housing 201. Three second hinge rods 308 are hinged to the outer wall of the moving ring 205. The other ends of the three second hinge rods 308 are all hinged to the sliding block 301. The second hinge rod 308 is used to control the movement of the sliding block 301.

[0030] The cleaning mechanism includes a cleaning housing 4. Three groups of cleaning housings 4 are fixedly connected to one side of the telescopic housing 3. Each group of cleaning housings 4 is symmetrically arranged. A triangular groove is formed inside the cleaning housing 4. An absorption film 401 is fixedly connected to one end of the cleaning housing 4. A plurality of through holes are formed on the surface of the absorption film 401. The through holes can filter rainwater to prevent impurities from entering the triangular groove. A plurality of water tanks 402 are formed inside the triangular groove. The plurality of water tanks 402 are connected to a conduit 403.

[0031] The cleaning mechanism further includes a storage tank 404. The storage tank 404 is installed inside the cleaning housing 4. The storage tank 404 is used to store rainwater. The top end of the storage tank 404 is communicated with the conduit 403. Four spray valves 405 are arranged on one side of the storage tank 404. A trigger switch 408 is arranged on the top of the storage tank 404. The trigger switch 408 is electrically connected to the four spray valves 405.

[0032] The cleaning mechanism further includes a second rotating shaft 409. The second rotating shaft 409 is rotatably connected to the inner wall of the cleaning housing 4. A rubber wheel 406 is fixedly connected to the outer wall of the second rotating shaft 409. A convex block 407 is fixedly connected to one end of the second rotating shaft 409. The convex block 407 can contact the trigger switch 408 when it moves. Three cleaning cotton 410 are fixedly connected inside the cleaning housing 4. The cleaning cotton 410 is used to wipe the stains on the surface of the blade 304 and the sprayed rainwater.

[0033] It further includes a round shaft 208. The round shaft 208 is fixedly connected to the top of the wind energy transmission housing 2. A wind vane 209 is rotatably connected to the outer wall of the round shaft 208. The wind vane 209 is used to measure the direction of the wind, which can make the device adjust according to the direction of the wind. A wind direction driver 207 is installed inside the wind energy transmission housing 2. The wind vane 209 is electrically connected to the wind direction driver 207.

[0034] It further includes a second gear 103. The second gear 103 is rotatably connected to the bottom side of the wind energy transmission housing 2. The output shaft of the wind direction driver 207 penetrates through the wind energy transmission housing 2 and is connected to the second gear 103. One end of the wind power column 101 is fixedly connected with a first gear 102. The first gear 102 is rotatably connected to the wind energy transmission housing 2. The first gear 102 meshes with the second gear 103. The cooperation between the wind direction driver 207 and the wind vane 209 enables the device to adjust its rotation following the direction of the wind.

[0035] When encountering windy weather outdoors, the household wind power generation device starts. Initially, the blade 304 is in an unfolded state. The wind can drive the telescopic shell 3, the blade 304, and the rotating rod 202 to rotate. When the blade 304 encounters the wind directions on the left and right sides, the wind vane 209 can rotate to measure the wind direction. At this time, the wind direction driver 207 is started. The output shaft of the wind direction driver 207 drives the second gear 103 to rotate. The second gear 103 rotates along the outside of the first gear 102, so that the wind energy transmission shell 2 rotates. The rotation of the wind energy transmission shell 2 can drive the telescopic shell 3 and the blade 304 to rotate, so as to adjust the blade 304 and the wind direction, and always make the blade 304 face the wind direction. When encountering strong winds, the rotation speeds of the blade 304 and the rotating rod 202 will be too fast. At this time, the rotation of the rotating rod 202 can eject the four first clamping blocks 210 outwards from the first chute by centrifugal force. The four first clamping blocks 210 expand outwards and are stuck with the four second clamping blocks 213. The four first clamping blocks 210 drive the clamping ring 211 to rotate through the four clamping blocks 213. The rotation of the clamping ring 211 contacts and generates friction with the deceleration ring 212. The deceleration ring 212 can provide deceleration for the rotating rod 202 through the clamping ring 211, so that the rotating rod 202 is in a uniform rotation state. Then the drive motor 203 is started. The output shaft of the drive motor 203 drives the threaded rod 204 to rotate. Initially, the moving ring 205 is located on the side far from the wind energy transmission shell 2. The rotation of the threaded rod 204 drives the moving ring 205 to move. The moving ring 205 moves into the wind energy transmission shell 2 along the sliding rod 206. During the movement of the moving ring 205, three second hinge rods 308 are pulled. The three second hinge rods 308 respectively pull the three sliding blocks 301 to move into the second chute of the telescopic shell 3. The movement of the three sliding blocks 301 drives the fixed rod 302 and the connecting shaft 303 to contract inwards. The connecting shaft 303 drives the blade 304 to move into the second chute of the telescopic shell 3. The movement of the fixed rod 302 drives the protrusion and the first hinge rod 306 to move downwards. During the downward movement of the first hinge rod 306, it contacts the C-shaped ejector rod 307. At this time, the C-shaped ejector rod 307 deflects under force, and the second elastic member is stressed. After the C-shaped ejector rod 307 deflects, one end of it presses one of the blades 304. One of the blades 304 is bent under force and drives the first half gear 305 to mesh and rotate with the second half gear 309 at the same time. The second half gear 309 drives the other blade 304 to bend. The two fixing plates 311 approach each other. At this time, the first elastic member is compressed by force. The two blades 304 are in a V shape at this time. The surface of the V-shaped blade 304 reduces contact with the wind and reduces the rotation speed. The movement of the fixed rod 302 drives the two V-shaped blades 304 to move inwards. The two V-shaped blades 304 respectively contact one side of the cleaning shell 4. The two cleaning shells 4 can limit the two blades 304. At this time, the first hinge rod 306 disengages from the C-shaped ejector rod 307. The C-shaped ejector rod 307 no longer deflects, and the second elastic member is no longer stressed and drives the C-shaped ejector rod 307 to reset.The sliding block 301 drives the blade 304 to continue moving through the fixed rod 302. At this time, the two blades 304 come into contact with the rubber wheel 406 and generate friction. The movement of the blade 304 drives the rubber wheel 406 to rotate. When the rubber wheel 406 rotates, the rubber wheel 406 drives the convex block 407 to rotate. The protruding end of the convex block 407 contacts the trigger switch 408, and the trigger switch 408 activates the water spray valve 405 and intermittently sprays water on the surfaces of the two blades 304. The two blades 304 with water on their surfaces continue to descend and come into contact with the cleaning cotton 410. The cleaning cotton 410 can wipe the stains and sprayed rainwater on the surfaces of the two blades 304. The absorption film 401 can collect rainwater when it rains. The collected rainwater flows into the triangular groove through the through hole, and then flows into the conduit 403 through the water tank 402 opened in the triangular groove, and then flows into the storage tank 404 through the conduit 403 to complete the collection of rainwater. When the fixed rod 302 drives the two blades 304 to retract into the telescopic shell 3, the blades 304 are no longer in contact with the strong wind, the rotation speed of the rotating rod 202 decreases, and at the same time, the centrifugal force of the four first clamping blocks 210 decreases. The four first clamping blocks 210 disengage from the four second clamping blocks 213 and enter the first sliding groove, avoiding the situation that the internal components and the blade 304 are damaged due to the too fast rotation speed of the device. Moreover, when the two blades 304 retract into the telescopic shell 3, the blades 304 can also be protected to prevent the sand and gravel particles blown by the strong wind from hitting the blades 304 and causing damage to them.,

[0036] When the weather gets better, the driving motor 203 is started. The output shaft of the driving motor 203 drives the threaded rod 204 to rotate in the reverse direction, so that the moving ring 205 moves out of the wind energy transmission shell 2. The moving ring 205 drives the three second hinge rods 308 to move outward and expand. The three second hinge rods 308 drive the sliding block 301 to move upward, which can make the sliding block 301 drive the fixed rod 302 and the blade 304 to move outward. The two blades 304 disengage from the cleaning mechanism. At this time, the fixed rod 302 drives the first hinge rod 306 to move upward. The first hinge rod 306 contacts the C-shaped ejector rod 307. After being squeezed by the C-shaped ejector rod 307, the first hinge rod 306 bends and rotates, and the torsion spring receives force. After the first hinge rod 306 bends and rotates, it continues to move upward and will disengage from the C-shaped ejector rod 307. At this time, the torsion spring releases and drives the first hinge rod 306 to reset, so that the C-shaped ejector rod 307 will not affect the reset of the blade 304. After the two blades 304 move out of the cleaning mechanism, the cleaning shell 4 no longer limits the two blades 304. At this time, the first elastic member is no longer compressed by force. The first elastic member drives the two fixing plates 311 and the two blades 304 to reset. At the same time, the first half gear 305 and the second half gear 309 rotate and reset, and the blade 304, the telescopic shell 3 and the rotating rod 202 can be rotated again by the wind force.

[0037] The above-described embodiments merely represent the preferred embodiments of the present utility model, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the patent for the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations, improvements, and substitutions can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the patent for the present utility model shall be subject to the appended claims.

Claims

1. An adjustable blade for wind power generation, comprising a base plate (1) and a wind column (101), wherein the wind column (101) is fixedly connected to the base plate (1), characterized in that: The wind power transmission shell (2) is also included. The top of the wind column (101) is rotatably connected to the wind power transmission shell (2). A transmission mechanism is arranged inside the wind power transmission shell (2). The transmission mechanism includes a speed limiting shell (201). The speed limiting shell (201) is installed inside the wind power transmission shell (2). A speed reduction shaft (212) is fixed inside the speed limiting shell (201). A clamping ring (211) is rotatably connected to the inner wall of the speed reduction shaft (212). One side of the clamping ring (211) is A plurality of second clamping blocks (213) are fixedly connected to the circumference, and a rotating rod (202) is rotatably connected to the inner wall of the clamping ring (211), and one end of the rotating rod (202) is rotatably connected to the speed limiting shell (201). A plurality of first sliding grooves are provided on the surface of the rotating rod (202), and a first clamping block (210) is slidably connected in the first sliding grooves of the rotating rod (202). When the first clamping block (210) moves, it can contact the second clamping block (213). The rotating rod (2 02) one end passes through the wind energy transmission shell (2) and is fixedly connected to the telescopic shell (3), the inner side of the telescopic shell (3) is provided with a plurality of second sliding grooves, the second sliding grooves of the telescopic shell (3) are all slidably connected with sliding blocks (301), one side of the plurality of sliding blocks (301) are all fixedly connected with fixed rods (302), one end of the fixed rod (302) is fixedly connected with a connecting shaft (303), the outer wall of the connecting shaft (303) is rotatably connected with a first half-shaped gear (305), the outer wall of the connecting shaft (303) is symmetrically hinged with blades (304), the first half-shaped gear (305) is fixedly connected to one of the blades (304), the other blade (304) is fixedly connected to a second half-shaped gear (309), the first half-shaped gear (305) and the second half-shaped gear (309) are meshed with each other, one side of the two blades (304) are fixedly connected with a fixing plate (311), and a first elastic member is connected between the two fixing plates (311).

2. The adjustable blade for wind power generation according to claim 1, characterized in that: It also includes a first hinge rod (306), a protrusion is fixedly connected to the outer wall of the fixed rod (302), one end of the protrusion is hinged to the first hinge rod (306), a plurality of L-shaped grooves are provided through one side of the telescopic shell (3), a first rotating shaft (310) is fixedly connected to the inner side of the L-shaped groove, the outer wall of the first rotating shaft (310) is connected to a C-shaped top rod (307), a second elastic member is provided on the surface of the first rotating shaft (310), the first hinge rod (306) can contact one end of the C-shaped top rod (307) when it moves, and a cleaning mechanism is provided on one side of the telescopic shell (3), and the cleaning mechanism is used to clean the surface of the blade (304).

3. The adjustable blade for wind power generation according to claim 2, characterized in that: The transmission mechanism also includes a driving motor (203), the driving motor (203) is installed on one side of the speed limiting housing (201), the output shaft of the driving motor (203) is fixedly connected to a threaded rod (204), the threaded rod (204) passes through the wind energy transmission housing (2) and is threadedly connected to a moving ring (205), one side of the moving ring (205) is slidably connected to a sliding rod (206), one end of the sliding rod (206) passes through the wind energy transmission housing (2) and is fixedly connected to the speed limiting housing (201), and the outer wall of the moving ring (205) is hinged with a plurality of second hinged rods (308), and the other ends of the plurality of second hinged rods (308) are all hinged to the sliding block (301).

4. The adjustable blade for wind power generation according to claim 3, characterized in that: The cleaning mechanism comprises a cleaning shell (4), a plurality of cleaning shells (4) are fixedly connected to one side of the telescopic shell (3), a triangular groove is provided inside the cleaning shell (4), an absorption film (401) is connected to one end of the cleaning shell (4), a plurality of water grooves (402) are provided in the triangular groove, and the plurality of water grooves (402) are connected to a guide tube (403).

5. The adjustable blade for wind power generation according to claim 4, characterized in that: The cleaning mechanism also includes a storage box (404). The storage box (404) is installed inside the cleaning shell (4). The top of the storage box (404) is connected to the guide tube (403). A plurality of water spray valves (405) are provided on one side of the storage box (404). A trigger switch (408) is provided on the top of the storage box (404). The trigger switch (408) is electrically connected to the four water spray valves (405).

6. The adjustable blade for wind power generation according to claim 5, characterized in that: The cleaning mechanism also includes a second rotating shaft (409), the inner wall of the cleaning shell (4) is rotatably connected to the second rotating shaft (409), the outer wall of the second rotating shaft (409) is fixedly connected to a rubber wheel (406), one end of the second rotating shaft (409) is fixedly connected to a protrusion (407), and the protrusion (407) can contact the trigger switch (408) when it moves, and a plurality of cleaning cottons (410) are fixedly connected inside the cleaning shell (4).

7. The adjustable blade for wind power generation according to claim 6, characterized in that: The invention also comprises a circular shaft (208), the top of the wind energy transmission housing (2) is fixedly connected with the circular shaft (208), the outer wall of the circular shaft (208) is rotatably connected with a wind vane (209), a wind direction driver (207) is installed inside the wind energy transmission housing (2), and the wind vane (209) is electrically connected to the wind direction driver (207).

8. The adjustable blade for wind power generation according to claim 7, characterized in that: The wind power transmission housing (2) further comprises a second gear (103), the bottom side of the wind power transmission housing (2) is rotatably connected to the second gear (103), the output shaft of the wind direction driver (207) passes through the wind power transmission housing (2) and is connected to the second gear (103), one end of the wind column (101) is fixedly connected to the first gear (102), the first gear (102) is rotatably connected to the wind power transmission housing (2), and the first gear (102) and the second gear (103) are meshed with each other.

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