Offshore vertical axis wind power generation equipment

Abstract

The present invention relates to the technical field of wind power generation, and in particular to an offshore vertical axis wind power generation device, including a base, blades, a cleaning cover, a traction assembly and a protective assembly, etc.; the base is rotatably connected with blades; the base is slidably connected with a cleaning cover for cleaning the base; the cleaning cover is truncated; the cleaning cover is provided with a plurality of through grooves; the base is provided with a plurality of collecting grooves; the base is provided with a collecting chamber; each collecting groove is connected with the collecting chamber; the base is provided with a traction assembly for driving the cleaning cover to descend; the traction assembly is connected with the cleaning cover; the base is provided with a protective assembly for protecting the base. The present invention realizes that the floating garbage is driven by the cleaning cover to enter the collecting chamber from the collecting groove for collection, thereby preventing marine garbage from floating outside the base, avoiding the difficulty of maintenance caused by the obstruction of floating garbage when maintaining the base, and improving the convenience of base maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to an offshore vertical axis wind power generation device. Background Art

[0002] A vertical-axis offshore wind turbine is a wind power generation device designed for use in an offshore environment. Its characteristic is that the blades rotate around a vertical axis, which is different from the common horizontal-axis wind turbine. This design means that the vertical-axis wind turbine does not have to rotate with the wind direction when capturing wind energy, simplifying the structure of the wind turbine.

[0003] When the existing vertical-axis offshore wind turbines are generating electricity, due to the huge size of the supporting base of the wind turbine, special water flow dynamics will be generated around the supporting base, such as eddies and deceleration zones. These water flow conditions can capture marine debris floating on the sea surface, causing the marine debris to float and accumulate on the outside of the base. The existing vertical-axis offshore wind power generation is unable to clean up the accumulated garbage. When the staff performs maintenance work on the wind turbine, the accumulated garbage affects the normal maintenance work and needs to be cleaned up, which increases the difficulty of maintenance and cleaning costs of the base. At the same time, the accumulated garbage will also pose a threat to the surrounding ecological environment.

[0004] Furthermore, since the supporting base is immersed in seawater for a long time, marine organisms such as shellfish attach to the surface of the base, causing the protective paint on the surface of the base to be corroded. The existing cleaning of the marine organisms on the surface of the base not only requires high cleaning and maintenance costs, but also, due to the tight adhesion of the marine organisms, the protective paint on the surface of the base is removed together with the marine organisms during the cleaning process, resulting in reduced corrosion resistance of the base, thereby reducing the life of the wind turbine. Summary of the invention

[0005] In order to overcome the shortcomings of existing vertical axis offshore wind power generation that the garbage accumulated on the base and the marine organisms adhered thereto cannot be cleaned, which increases the difficulty of maintenance and cleaning costs of the base, reduces the corrosion resistance of the base, and thus reduces the life of the wind turbine, the present invention provides an offshore vertical axis wind power generation equipment.

[0006] The technical implementation scheme of the present invention is: an offshore vertical axis wind power generation equipment, including a base, blades and a generator; the blades are rotatably connected to the base; a generator is arranged inside the base; the generator and the blades are connected; it also includes a cleaning cover, a traction assembly and a protective assembly; a cleaning cover for cleaning the base is slidably connected to the base; the cleaning cover is in a truncated cone shape; a plurality of through grooves are provided on the cleaning cover; a plurality of collecting grooves are provided on the base; a collecting chamber is provided on the base; each collecting groove is connected to the collecting chamber; a traction assembly for driving the cleaning cover to descend is provided on the base; the traction assembly is connected to the cleaning cover; and a protective assembly for protecting the base is provided on the base.

[0007] More preferably, the traction assembly includes a servo motor, a winding shaft, a first traction rope and a second traction rope; the servo motor is fixedly connected to the lower inner part of the base; the winding shaft is fixedly connected to the output end of the servo motor; a plurality of first traction ropes for driving the cleaning cover to descend are fixedly connected to the lower part of the winding shaft; each first traction rope passes through the bottom of the base and is fixedly connected to the cleaning cover; a plurality of second traction ropes for driving the cleaning cover to ascend are fixedly connected to the upper part of the winding shaft; each second traction rope is fixedly connected to the cleaning cover.

[0008] More preferably, it further includes a scraper block; a plurality of scrapers for cleaning impurities adhering to the first traction ropes are fixedly connected to the bottom of the base; and each first traction rope passes through a corresponding scraper block.

[0009] More preferably, the protective assembly includes a first protective film, a connecting rope, a first sliding rod, a second protective film, an elastic rope, a second sliding rod and a sealing ring; a plurality of first protective films for protecting the base are fixedly connected to the outside of the base; a sealing ring for sealing the collecting tank is slidably connected in the collecting chamber; a plurality of connecting ropes are fixedly connected to the sealing ring; a first sliding rod is fixedly connected to each two adjacent connecting ropes; each first sliding rod is located between the base and the corresponding first protective film; a plurality of slots are provided on the base; a plurality of avoidance grooves in a circular array are provided on the base; a plurality of second protective films for protecting the base are fixedly connected to the outside of the base; both the first protective film and the second protective film are made of high-strength material; a plurality of elastic ropes are fixedly connected to the inside of the base; a second sliding rod is fixedly connected to each two adjacent elastic ropes; each second sliding rod is located between the base and the corresponding second protective film.

[0010] More preferably, it further includes balls; each of the first sliding rod and the second sliding rod is rotatably connected with a plurality of balls for reducing friction with the base.

[0011] More preferably, it also includes a chamber door; the base is rotatably connected to the chamber door for the convenience of staff to clean the garbage in the collection chamber.

[0012] More preferably, it also includes baffles; a plurality of baffles for blocking waves are fixedly connected to the lower side of the cleaning cover.

[0013] More preferably, it also includes a guide block; a plurality of guide blocks for guiding garbage into the collection chamber are fixedly connected to the lower side of the cleaning cover.

[0014] More preferably, it also includes a cutting system, which includes a cutter, an elastic member and a pull rope; each guide block is provided with a storage groove; each storage groove is slidably connected to a cutter for cutting off garbage wrapped around the base; a number of elastic members are fixedly connected to the lower side of the cleaning cover; each elastic member is fixedly connected to the corresponding cutter; a pull rope is fixedly connected to each first traction rope; and each pull rope is fixedly connected to the corresponding cutter.

[0015] More preferably, the base is provided with a plurality of cutting grooves for enhancing the cutting effect.

[0016] Compared with the prior art, the present invention has the following advantages: the present invention realizes that the floating garbage is driven by the cleaning cover to enter the collection chamber from the collection tank for collection, thereby preventing the marine garbage from floating outside the base, avoiding the difficulty of maintenance caused by the obstruction of the floating garbage when maintaining the base, and improving the convenience of base maintenance;

[0017] The baffle is used to separate the garbage in the area below the cleaning cover to prevent the waves from washing the garbage out of the cleaning cover from the opposite channel, thus ensuring the gathering effect of the garbage and facilitating the subsequent collection of the garbage;

[0018] The guide block guides the garbage toward the corresponding collection slot, so that the garbage can directly enter the collection chamber through the collection slot, and prevents the garbage from being stuck between two adjacent collection slots, thereby improving the collection effect of the garbage;

[0019] The long strips of garbage and impurities wrapped around the outside of the base can be cut off or pushed away by a cutter to make them fall off from the bottom of the base, which helps to reduce the difficulty of maintaining the wind turbine, while preventing fishing net garbage from accidentally catching or harming marine life, and protecting the ecological environment around the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the offshore vertical axis wind power generation equipment of the present invention;

[0021] Figure 2 It is a combined cross-sectional view of the base and the cleaning cover of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the traction assembly combined with the traction assembly of the present invention;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the cleaning cover, baffle and guide block combination of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the cleaning cover, guide block and cutting system combination of the present invention;

[0025] Figure 6 It is a combined cross-sectional view of the base, cleaning cover and protection assembly of the present invention;

[0026] Figure 7 It is a combined cross-sectional view of the base and the protection component of the present invention.

[0027] The markings of the components in the accompanying drawings are as follows: 1-base, 1001-collecting groove, 1002-collecting chamber, 1003-card slot, 1004-cutting groove, 1005-avoidance groove, 2-blade, 3-generator, 4-cleaning cover, 4001-through groove, 5-chamber door, 6-baffle, 7-guide block, 7001-storage groove, 101-servo motor, 102-winding shaft, 103-first traction rope, 104-scraping block, 105-second traction rope, 201-first protective film, 202-connecting rope, 203-first sliding rod, 204-second protective film, 205-elastic rope, 206-second sliding rod, 207-ball, 208-sealing ring, 301-cutter, 302-elastic member, 303-pull rope. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. 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.

[0029] Example 1

[0030] like Figure 1-Figure 7 As shown, an offshore vertical axis wind power generation device includes a base 1, blades 2 and a generator 3; the blades 2 are rotatably connected to the base 1; the generator 3 is arranged inside the base 1; the generator 3 is connected to the blades 2;

[0031] It also includes a cleaning cover 4, a traction assembly and a protective assembly; the cleaning cover 4 is slidably connected to the base 1; the cleaning cover 4 is in a truncated cone shape; the cleaning cover 4 is provided with a plurality of through grooves 4001 in a circular array; the base 1 is provided with a plurality of collecting grooves 1001 in a circular array; the base 1 is provided with a collecting chamber 1002; each collecting groove 1001 is connected to the collecting chamber 1002; a traction assembly is provided on the base 1; the traction assembly is connected to the cleaning cover 4; and the base 1 is provided with a protective assembly.

[0032] The traction assembly includes a servo motor 101, a winding shaft 102, a first traction rope 103 and a second traction rope 105; the servo motor 101 is fixedly connected to the lower inner side of the base 1; the winding shaft 102 is fixedly connected to the output end of the servo motor 101; a plurality of first traction ropes 103 in a circular array are fixedly connected to the lower part of the winding shaft 102; each first traction rope 103 passes through the bottom of the base 1 and is fixedly connected to the cleaning cover 4; a plurality of second traction ropes 105 in a circular array are fixedly connected to the upper part of the winding shaft 102; each second traction rope 105 is fixedly connected to the cleaning cover 4.

[0033] It also includes a scraper block 104 ; a plurality of scraper blocks 104 in a circular array are fixedly connected to the bottom of the base 1 ; and each first traction rope 103 passes through a corresponding scraper block 104 .

[0034] The protective assembly includes a first protective film 201, a connecting rope 202, a first sliding rod 203, a second protective film 204, an elastic rope 205, a second sliding rod 206 and a blocking ring 208; a plurality of first protective films 201 in an annular array are fixedly connected to the outside of the base 1; a blocking ring 208 is slidably connected in the collecting chamber 1002; a plurality of connecting ropes 202 in an annular array are fixedly connected to the blocking ring 208; a first sliding rod 203 is fixedly connected to each adjacent two connecting ropes 202; each first sliding rod 203 is located between the base 1 and the corresponding first protective film The base 1 is provided with a plurality of slots 1003 in a circular array; the base 1 is provided with a plurality of avoidance grooves 1005 in a circular array; a plurality of second protective films 204 in a circular array are fixedly connected to the outside of the base 1; both the first protective film 201 and the second protective film 204 are made of high-strength material; a plurality of elastic ropes 205 in a circular array are fixedly connected to the inside of the base 1; a second sliding rod 206 is fixedly connected to every two adjacent elastic ropes 205; each second sliding rod 206 is located between the base 1 and the corresponding second protective film 204.

[0035] It also includes balls 207; each of the first sliding rod 203 and the second sliding rod 206 is rotatably connected with a plurality of balls 207.

[0036] A chamber door 5 is also included; the chamber door 5 is rotatably connected to the base 1.

[0037] It also includes a baffle 6; a plurality of baffles 6 in a ring array are fixedly connected to the lower side of the cleaning cover 4.

[0038] It also includes a guide block 7; a plurality of guide blocks 7 in a ring array are fixedly connected to the lower side of the cleaning cover 4.

[0039] The present invention lowers the cleaning cover 4 outside the base 1 to drive the garbage floating outside the base 1 to move downward, so that it enters the collection chamber 1002 for collection, thereby solving the problem of increased maintenance difficulty and cleaning cost of the base 1 due to the floating of marine garbage outside the base 1. The specific process is as follows:

[0040] When generating electricity using the offshore vertical axis wind power generation equipment, the blades 2 are rotated by the wind, driving the generator 3 to generate electricity. During this process, the cleaning cover 4 is pulled by the second traction rope 105 to make the through slot 4001 float on the sea surface. Due to the large volume of the base 1, special water flow dynamics will be generated around the base 1, such as eddies and deceleration zones. These water flow conditions can capture garbage floating on the sea surface, allowing it to pass through the through slot 4001 into the bottom of the cleaning cover 4 and gradually accumulate on the outside of the base 1. When the waves are large, the baffle 6 is used to separate the garbage in the area below the cleaning cover 4 to prevent the waves from flushing the garbage out of the cleaning cover 4 from the opposite through slot 4001, thereby ensuring the garbage gathering effect and facilitating the subsequent garbage collection work.

[0041] When regularly cleaning the garbage accumulated under the cleaning cover 4, the servo motor 101 is controlled to drive the winding shaft 102 to rotate, and the first traction rope 103 is wound up, and the second traction rope 105 is loosened at the same time, so that the first traction rope 103 pulls the cleaning cover 4 downward, and drives the floating garbage below it to move downward and sink into the sea through the cleaning cover 4. The garbage submerged in the sea fits the lower side of the cleaning cover 4 due to buoyancy and moves upward to between the cleaning cover 4 and the outer wall of the base 1. After the cleaning cover 4 is submerged in the sea, it first contacts with the first protective film 201, and is pressed to the upper side of the first sliding rod 203 through the first protective film 201. As the cleaning cover 4 continues to descend, the cleaning cover 4 presses the first sliding rod 203 downward through the first protective film 201. The lower part of the groove 1005 is gently sloped, and the first sliding rod 203 is not blocked or limited, so that the first sliding rod 203 is separated from the avoidance groove 1005, and the connecting rope 202 is pulled, so that the connecting rope 202 pulls the blocking ring 208 to move toward the upper part of the collecting chamber 1002, so that the blocking ring 208 opens the blockage of the collecting groove 1001. When the blocking ring 208 moves upward in the collecting chamber 1002, the marine organisms attached to the inner wall of the collecting chamber 1002 are scraped off by the blocking ring 208, so as to avoid the corrosion caused by the adhesion of the marine organisms to the inner wall of the collecting chamber 1002. When the upper part of the cleaning cover 4 moves to the collecting groove 1001, the garbage tends to move upward due to the influence of buoyancy. Under the guidance of the lower side of the cleaning cover 4, the garbage passes The garbage passes through the collecting groove 1001 and enters the collecting chamber 1002, and floats to the water surface in the collecting chamber 1002, so as to collect the garbage, prevent the marine garbage from floating on the outside of the base 1, and avoid the difficulty of maintenance caused by the obstruction of the floating garbage when maintaining the base 1, thereby improving the convenience of maintaining the base 1. During the descent of the cleaning cover 4, the garbage is guided to the corresponding collecting groove 1001 by the guide block 7, so that the garbage directly passes through the collecting groove 1001 and enters the collecting chamber 1002, and prevents the garbage from being stuck between two adjacent collecting grooves 1001, thereby improving the collection effect of the garbage. After the garbage is collected in the collecting chamber 1002, the servo motor 101 is controlled to drive the winding shaft 102 to rotate in the opposite direction to pull the first traction The rope 103 is relaxed, and the second traction rope 105 is wound up at the same time, so that the second traction rope 105 pulls the cleaning cover 4 upward to the sea level, preparing for the next cleaning of floating garbage. When the first sliding rod 203 loses the squeeze of the cleaning cover 4, it is pulled by the connecting rope 202 under the action of the gravity of the blocking ring 208, and moves upward to reset to the avoidance groove 1005, so that the blocking ring 208 blocks the collection groove 1001 again, preventing marine organisms from entering the collection chamber 1002 through the collection groove 1001, and avoiding the inner wall of the collection chamber 1002 from being adhered to by marine organisms and causing corrosion. When the subsequent staff regularly maintains the wind power generation equipment, they can open the chamber door 5 to enter the collection chamber 1002 for salvage and cleaning work.

[0042] The present invention scrapes off the marine organisms adhering to the outer sides of the first protective film 201 and the second protective film 204 by the cleaning cover 4 during the process of descending to clean the garbage, thereby solving the problem that the protective paint on the surface of the base 1 is corroded due to the marine organisms adhering to the surface of the base 1, which reduces the life of the wind power generation equipment and increases the cleaning and maintenance costs. The specific process is as follows:

[0043] When using the offshore vertical axis wind power generation equipment to generate electricity, the outside of the base 1 is covered by the first protective film 201 and the second protective film 204 to isolate the base 1 from the seawater, so that floating garbage cannot come into contact with the outside of the base 1. At the same time, marine organisms such as shellfish originally attached to the base 1 are attached to the first protective film 201 and the second protective film 204, thereby enhancing the protection effect of the base 1.

[0044] When the cleaning cover 4 presses the first sliding rod 203 downward through the first protective film 201, the marine organisms attached to the first protective film 201 are scraped off by the cleaning cover 4. In this process, the first protective film 201 is lifted toward the outside of the base 1 by the first sliding rod 203, so that the first protective film 201 is deformed, making it easier for the marine organisms attached to the first protective film 201 to fall off, thereby enhancing the cleaning effect of the cleaning cover 4 on the first protective film 201. As the first sliding rod 203 is continuously pressed downward by the cleaning cover 4, when the first sliding rod 203 drops to the position of the card slot 1003, The cleaning cover 4 presses the first sliding rod 203 into the card slot 1003, so that the first sliding rod 203 avoids the cleaning cover 4. After the cleaning cover 4 passes the first sliding rod 203, the first sliding rod 203 is pulled by the connecting rope 202 under the gravity of the blocking ring 208, and moves upward to reset to the avoidance groove 1005, preparing for the next cleaning work. While the first traction rope 103 is wound up, the scraper block 104 is used to scrape off the impurities adhering to the first traction rope 103 to prevent the first traction rope 103 from being corroded due to the attachment of impurities, which is beneficial to prolonging the service life of the first traction rope 103.

[0045] When the marine life on the first protective film 201 is cleaned, the servo motor 101 is controlled to drive the winding shaft 102 to continue to reel in the first traction rope 103, so that the first traction rope 103 pulls the cleaning cover 4 to continue to descend. When the cleaning cover 4 continues to descend and passes through the collecting tank 1001, the cleaning cover 4 contacts the second sliding rod 206 through the second protective film 204, and the second sliding rod 206 is pressed downward through the second protective film 204 by the cleaning cover 4. At the same time, the elastic rope 205 is stretched to scrape off the marine life attached to the second protective film 204, thereby enhancing the cleaning effect of the second protective film 204, preventing the weight and structural load of the wind power generation equipment from increasing due to the attachment of marine life, and avoiding affecting the buoyancy balance and stability of the wind power generation equipment. When the cleaning cover 4 pushes the second sliding rod 206 downward, the second sliding rod 206 is pressed downward through the second protective film 204. After pressing to the lower part of the second protective film 204, the servo motor 101 is controlled to drive the winding shaft 102 to rotate in the opposite direction to loosen the first traction rope 103, so that the cleaning cover 4 rises under the pulling force of the second traction rope 105. As the cleaning cover 4 rises, the second sliding rod 206 loses the downward pressure of the cleaning cover 4 and moves upward and resets under the elastic force of the elastic rope 205 to prepare for the next cleaning work. When the cleaning cover 4 is pulled to the position of the first sliding rod 203 by the second traction rope 105, the first sliding rod 203 is restricted by the avoidance groove 1005 and cannot continue to rise. Under the squeezing action of the cleaning cover 4, the first sliding rod 203 is squeezed into the avoidance groove 1005, so that the cleaning cover 4 rises to the sea level again, ready for the next cleaning work of marine garbage and attached marine life.

[0046] When the first sliding rod 203 and the second sliding rod 206 are squeezed by the cleaning cover 4 and move outside the base 1, the friction between the first sliding rod 203 and the second sliding rod 206 and the base 1 is reduced by the ball 207, while cleaning marine debris and attached marine organisms, the wear on the outside of the base 1 is reduced, and the protection effect of the base 1 is further enhanced.

[0047] Example 2

[0048] On the basis of Example 1, Figure 4 and Figure 5 As shown, it also includes a cutting system, which includes a cutter 301, an elastic member 302 and a pull rope 303; a storage groove 7001 is provided on each guide block 7; a cutter 301 is slidably connected to each storage groove 7001; a plurality of elastic members 302 in a ring array are fixedly connected to the lower side of the cleaning cover 4, and the elastic members 302 are springs; each elastic member 302 is fixedly connected to the corresponding cutter 301; a pull rope 303 is fixedly connected to each first traction rope 103; each pull rope 303 is fixedly connected to the corresponding cutter 301.

[0049] The base 1 is provided with a plurality of cutting grooves 1004 in a circular array.

[0050] It is also considered that when long impurities such as seaweed float to the outside of the base 1, the seaweed impurities will be entangled on the base 1, increasing the difficulty of maintaining the wind power generation equipment. The specific solution process is as follows:

[0051] Before the first traction rope 103 pulls the cleaning cover 4 downward, the first traction rope 103 first pulls the pull rope 303, pulls the cutter 301 out of the storage groove 7001 and inserts it into the cutting groove 1004, and stretches the elastic member 302 at the same time. As the first traction rope 103 pulls the cleaning cover 4 downward, the cutter 301 is driven to move downward in the cutting groove 1004, and the long impurities such as seaweed wrapped around the outside of the base 1 are cut off by the cutter 301, so that they fall off the base 1, which helps to reduce the difficulty of maintenance of wind power generation equipment.

[0052] When the garbage made of wear-resistant materials such as fishing nets is entangled on the base 1, it not only increases the difficulty of maintaining the wind power generation equipment, but also accidentally catches or harms marine life, posing a threat to the surrounding ecological environment. The specific solution process is as follows:

[0053] When garbage made of wear-resistant materials such as fishing nets is entangled on the base 1, it is difficult for the cutter 301 to cut it off. When the cutter 301 moves down in the cutting groove 1004, the cutter 301 pushes the garbage made of wear-resistant materials such as fishing nets downward on the base 1 to make it detach from the bottom of the base 1, thereby reducing the difficulty of maintaining the wind power generation equipment, preventing fishing net garbage from accidentally catching or harming marine life, and protecting the ecological environment around the base 1.

[0054] When the first traction rope 103 relaxes the pulling on the cleaning cover 4, the cutter 301 is stored in the recovery groove 7001 under the elastic force of the elastic member 302, which is beneficial to protecting the cutter 301, reducing the degree of corrosion of the cutter 301, and helping to extend the service life of the cutter 301.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. An offshore vertical axis wind power generation device, comprising a base (1), blades (2) and a generator (3); the blades (2) are rotatably connected to the base (1); a generator (3) is arranged inside the base (1); the generator (3) is connected to the blades (2); and the characteristics are: The cleaning cover (4) is slidably connected to the base (1) and is used for cleaning the base (1); the cleaning cover (4) is in a truncated cone shape; a plurality of through slots (4001) are provided on the cleaning cover (4); a plurality of collecting slots (1001) are provided on the base (1); a collecting chamber (1002) is provided on the base (1); each collecting slot (1001) is connected to the collecting chamber (1002); a traction assembly for driving the cleaning cover (4) to descend is provided on the base (1); the traction assembly is connected to the cleaning cover (4); a protective assembly for protecting the base (1) is provided on the base (1); The traction assembly comprises a servo motor (101), a winding shaft (102), a first traction rope (103) and a second traction rope (105); the servo motor (101) is fixedly connected to the lower inner side of the base (1); the winding shaft (102) is fixedly connected to the output end of the servo motor (101); a plurality of first traction ropes (103) for driving the cleaning cover (4) to descend are fixedly connected to the lower part of the winding shaft (102); each first traction rope (103) passes through the bottom of the base (1) and is fixedly connected to the cleaning cover (4); a plurality of second traction ropes (105) for driving the cleaning cover (4) to ascend are fixedly connected to the upper part of the winding shaft (102); each second traction rope (105) is fixedly connected to the cleaning cover (4); The protection component comprises a first protection film (201), a connecting rope (202), a first sliding rod (203), a second protection film (204), an elastic rope (205), a second sliding rod (206) and a blocking ring (208); a plurality of first protection films (201) for protecting the base (1) are fixedly connected to the outside of the base (1); a blocking ring (208) for blocking the collection tank (1001) is slidably connected in the collection chamber (1002); a plurality of connecting ropes (202) are fixedly connected to the blocking ring (208); a first sliding rod (203) is fixedly connected to each adjacent two connecting ropes (202); each first sliding rod (203) is located at the base The base (1) is provided with a plurality of slots (1003); the base (1) is provided with a plurality of avoidance slots (1005) in a ring array; the outer side of the base (1) is fixedly connected with a plurality of second protective films (204) for protecting the base (1); both the first protective film (201) and the second protective film (204) are made of high-strength material; the inside of the base (1) is fixedly connected with a plurality of elastic ropes (205); each of the two adjacent elastic ropes (205) is fixedly connected with a second sliding rod (206); each second sliding rod (206) is located between the base (1) and the corresponding second protective film (204).

2. An offshore vertical axis wind power generation device according to claim 1, characterized in that: It also includes a scraper block (104); a plurality of scrapers (104) for cleaning impurities adhering to the first traction rope (103) are fixedly connected to the bottom of the base (1); and each first traction rope (103) passes through a corresponding scraper block (104).

3. An offshore vertical axis wind power generation device according to claim 1, characterized in that: It also includes balls (207); each of the first sliding rod (203) and the second sliding rod (206) is rotatably connected to a plurality of balls (207) for reducing friction with the base (1).

4. An offshore vertical axis wind power generation device according to claim 3, characterized in that: It also includes a chamber door (5); the base (1) is rotatably connected to the chamber door (5) for facilitating staff to clean garbage in the collection chamber (1002).

5. An offshore vertical axis wind power generation device according to claim 1, characterized in that: It also includes a baffle (6); a plurality of baffles (6) for blocking sea waves are fixedly connected to the lower side of the cleaning cover (4).

6. An offshore vertical axis wind power generation device according to claim 5, characterized in that: It also includes a guide block (7); a plurality of guide blocks (7) are fixedly connected to the lower side of the cleaning cover (4) and are used to guide garbage into the collection chamber (1002).

7. An offshore vertical axis wind power generation device according to claim 6, characterized in that: The cleaning cover (4) further comprises a cutting system, the cutting system comprising a cutter (301), an elastic member (302) and a pull rope (303); each guide block (7) is provided with a storage groove (7001); each storage groove (7001) is slidably connected to a cutter (301) for cutting off garbage wound around the base (1); a plurality of elastic members (302) are fixedly connected to the lower side of the cleaning cover (4); each elastic member (302) is fixedly connected to a corresponding cutter (301); each first traction rope (103) is fixedly connected to a pull rope (303); each pull rope (303) is fixedly connected to a corresponding cutter (301).

8. An offshore vertical axis wind power generation device according to claim 7, characterized in that: The base (1) is provided with a plurality of cutting grooves (1004) for enhancing the cutting effect.

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