A lifting device for offshore wind power operations

Abstract

The present invention relates to the field of mechanical engineering technology, and discloses a lifting device for offshore wind power operation, including a lifting mechanism, which also includes a chassis, and a lifting platform is fixedly connected to one end of the outer wall of the chassis near the bottom. When the lifting device falls rapidly, the elliptical teeth will generate centrifugal force. A transmission gear is arranged inside the chassis, and a notch tube is fixedly connected to the outer wall of the transmission gear. When the lifting device operates normally, the speed will be a constant value, not too fast or too slow, and the arc-shaped convex teeth will only have a simple contact with the notch tube and will not be completely stuck in the notch of the notch tube. The convex tooth 2 will also have a given distance from the convex teeth on the inner wall of the embedded tooth and will not mesh. However, when an accident occurs, the lifting device falls. At this time, due to the excessively fast falling speed and the effect of the counterweight block, the elliptical teeth generate a centrifugal force, and the arc-shaped convex teeth will be stuck in the notch of the notch tube.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical engineering equipment, and in particular to a lifting device for offshore wind power operations. Background Art

[0002] With the rapid development of the wind power industry, the scale and height of wind turbines continue to increase. Wind turbine towers are usually tens or even hundreds of meters high. Operation and maintenance personnel need to climb frequently to inspect, maintain and repair equipment. This frequent climbing not only consumes a lot of time and physical strength, but also poses a high safety risk. Against this background, wind power operation lifting devices came into being, providing operation and maintenance personnel with a more convenient and safer way to go up and down towers, improving work efficiency, and allowing operation and maintenance personnel to no longer need to expend a lot of physical strength climbing, and can reach the work position faster, thereby shortening the operation time.

[0003] For traditional lifting devices, when the maintenance personnel carry heavy tools, the carrying pressure of the power device becomes greater. If things go on like this for a long time, it is easy to cause malfunction of the power device, safety problems such as falling, and cause injuries to the maintenance personnel. The following solutions are proposed to address the above problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a lifting device for offshore wind power operation, including a lifting mechanism, the lifting mechanism also includes a chassis, a lifting platform is fixedly connected to one end of the outer wall of the chassis near the bottom, and a heat sink is fixedly connected to the outer wall of the chassis;

[0005] The brake deceleration mechanism comprises a fixing device 4 fixedly connected to the inner wall of the chassis, an end of the outer wall of the fixing device 4 away from the chassis is rotatably connected with an inlay tooth, and the inner wall of the inlay tooth is rotatably connected with a notch tube;

[0006] The cleaning mechanism comprises a pressure plate slidably connected to the inner wall of the lifting platform, the bottom of the pressure plate is fixedly connected to a fixing column, and the bottom of the fixing column is fixedly connected to a telescopic spring.

[0007] Preferably, the lifting mechanism also includes a plurality of heat dissipation holes opened on the outer wall of the heat sink, a guardrail door is rotatably connected to the outer wall of the chassis, a guardrail is fixedly connected to the top of the lifting platform, a handrail device is fixedly connected to the top of the lifting platform, the outer wall of the guardrail is fixedly connected to the outer wall of the handrail device at one end away from the chassis. Since the tower is very high, the power motor will generate a lot of heat when running for a long time. Heat dissipation holes are opened on the heat sink to allow air to circulate, so that the power motor can achieve the purpose of heat dissipation. A guardrail door and guardrail are set on the top of the lifting platform, which provide a safety guarantee for people riding the lifting device, so that the passengers will feel more at ease when standing on it.

[0008] Preferably, the lifting mechanism also includes a ladder slidably connected to the inner wall of the handrail device, a fixing device 1 is fixedly connected to the outer wall of the ladder, a side wall of the fixing device 1 is fixedly connected to one end away from the handrail device with a plurality of convex teeth 1, and a fixing device 2 is fixedly connected to one end of the inner wall of the chassis close to the lifting platform. The handrail device arranged on one side of the ladder is similar to a handrail for holding the ladder, and the two are slidably connected, which can provide a better stabilizing effect and prevent the lifting device from shaking too much during lifting.

[0009] Preferably, the lifting mechanism also includes a power motor fixedly connected to the outer wall of the second fixing device, a transmission gear is fixedly connected to the outer wall of the power motor near one end of the ladder, a lifting gear is fixedly connected to the outer wall of the transmission gear, the side wall of the lifting gear is meshingly connected with the side wall of the convex tooth one, a fixing device three is fixedly connected to the inner wall of the chassis, the outer wall of the fixing device three is rotatably connected to the side wall of the transmission gear, a conveyor belt is meshingly connected to the side wall of the transmission gear, the transmission gear is rotated by the power motor, and the conveyor belt is driven to make the upper and lower transmission gears rotate synchronously, and the transmission gear is fixedly connected to the lifting gear, which drives the lifting gear to rotate when the transmission gear rotates, and the lifting gear is meshingly connected to the convex tooth one on the ladder, so that when the lifting gear rotates, it drives the entire lifting device to rise and fall.

[0010] Preferably, the braking and decelerating mechanism also includes an elliptical tooth penetrating and connected to the side wall of the notch tube, the outer wall of the notch tube is fixedly connected to the outer wall of the transmission gear, the outer wall of the elliptical tooth is fixedly connected with a counterweight block, the inner wall of the elliptical tooth is fixedly connected with an arc-shaped convex tooth, the side wall of the elliptical tooth is fixedly connected with a convex tooth 2, and the outer wall of the embedded tooth is fixedly connected with a protruding block. When the lifting device falls rapidly, the elliptical tooth will generate centrifugal force. A transmission gear is arranged inside the chassis, and the notch tube is fixedly connected to the outer wall of the transmission gear. When the lifting device is operating normally, the speed will be a constant value and will not be too fast or too slow. The convex tooth of the shape will only have a simple contact with the notch tube and will not be completely stuck in the notch of the notch tube. The convex tooth two will also have a given distance from the convex tooth on the inner wall of the embedded tooth and will not mesh. However, when an accident occurs, the lifting device will fall. At this time, due to the fast falling speed and the effect of the counterweight, the elliptical tooth will generate a centrifugal force. At this time, the arc-shaped convex tooth will be stuck in the notch of the notch tube. At the same time, the convex tooth two will mesh with the convex tooth on the inner wall of the embedded tooth. Since the embedded tooth and the fixing device four are slidingly connected, but the connection between the two is very rough, the friction is very large when sliding, thereby achieving a slow braking effect of the lifting device.

[0011] Preferably, the brake deceleration mechanism also includes a rotating shaft fixedly connected to the inner wall of the chassis, a rotating plate is rotatably connected to the side wall of the rotating shaft, the outer wall of the rotating plate is rotatably connected to the inner wall of the chassis, a friction plate is fixedly connected to the outer wall of the rotating plate, a convex tooth three is fixedly connected to the outer wall of the rotating plate, and a return spring is fixedly connected to the outer wall of the rotating plate. When the above-mentioned lifting device falls, the inner embedded gear will rotate, and a rotating plate is arranged on both sides of the outer wall of the inner embedded gear. When the inner embedded gear is rotated under force, the protruding block fixedly connected to the outer wall of the inner embedded gear will also rotate together at the same time, and slide and squeeze the convex tooth three. Since the rotating plate and the rotating shaft fixed to the inner wall of the chassis are rotatably connected, when the convex tooth three is squeezed by the force from the protruding block to drive the rotating plate to rotate around the rotating shaft, the friction plate fixedly connected to the rotating plate will also squeeze the inner teeth at the same time. The greater the force of the inner teeth rotating, the greater the force squeezed by the friction plate, thereby achieving a final braking effect. After the lifting device resumes normal operation, the inner teeth stop being subjected to force, and the return spring fixedly connected to the rotating plate returns the rotating plates on both sides of the inner teeth to their original positions. At the same time, the protruding blocks will also return to their original positions due to gravity, thereby maintaining the normal operation of the equipment.

[0012] Preferably, the cleaning mechanism also includes a fixed pile fixedly connected to the bottom of the pressure plate, the bottom of the fixed pile is fixedly connected to the pressure plate, an isolation plate is fixedly connected to the end of the inner wall of the lifting platform away from the pressure plate, a sewage inlet is provided at the outer wall of the pressure plate, and a fixed plate is fixedly connected to the top of the isolation plate near the end of the chassis, the inner wall of the fixed plate is slidably connected to the outer wall of the fixed pile, and five fixed columns and telescopic springs are arranged at the bottom of the pressure plate to give the pressure plate a telescopic function. After a person steps on the pressure plate, the pressure plate is pressed downward and the pressure is driven to move downward. When the plates are pressed downward together, the clean water will squeeze the small circular plate from the bottom of the pressure plate to make the small circular plate open upward. However, due to the small convex teeth on the side wall of the rotating rod, the small circular plate can only open a given gap to allow the clean water to flow into the top of the pressure plate. After the person leaves the pressure plate, the pressure plate moves upward under the action of the telescopic spring, and at the same time, it will also drive the clean water on the pressure plate to move upward. At this time, the small circular plate is closed downward due to gravity. Since the clean water presses the fixed plate upward, it will flow into the water inlet 2 and out of the water outlet, making the top of the pressure plate clean and avoiding the erosion of sea water. After being cleaned, the clean water becomes sewage and flows into the sewage inlet.

[0013] Preferably, the cleaning mechanism also includes a water inlet 1 provided on the side wall of the lifting platform, a sewage outlet provided on the side wall of the lifting platform, a rotating rod rotatably connected to the top of the pressure plate, a small round plate fixedly connected to the side wall of the rotating rod, a water inlet 2 provided on the inner wall of the lifting platform, a water outlet provided on the outer wall of the chassis, a movable ball slidably connected to the inner wall of the water inlet 2, and a fixed tooth fixedly connected to the side wall of the chassis. When the lifting device falls, due to inertia, the pressure plate will rebound, and a movable ball is arranged in the water inlet. When the lifting device fails and falls, the human body will be The status quo is maintained due to inertia and will not continue to give the pressure plate a downward force. At this time, the pressure plate will move upward under the action of the telescopic spring, and bring clean water into the water inlet 2 and then out of the water outlet. To prevent clean water from flowing out of the water outlet without people leaving the pressure plate, the movable ball set in the water inlet will continue to maintain its status quo due to inertia and will not move downward, blocking the passage from the water inlet 2 to the water outlet, so that clean water will not accidentally flow out of the water outlet. At this time, the fixed teeth will play a limiting role to prevent the movable ball from falling out of the water outlet and affecting subsequent use.

[0014] The present invention has the following beneficial effects:

[0015] (1) The present invention utilizes the characteristic that when the lifting device falls rapidly, the elliptical teeth will generate centrifugal force. A transmission gear is arranged inside the chassis, and the notch tube is fixedly connected to the outer wall of the transmission gear. When the lifting device is operating normally, the speed will be a constant value and will not be too fast or too slow. The arc-shaped convex tooth will only have a simple contact with the notch tube and will not be completely stuck in the notch of the notch tube. The convex tooth 2 will also have a given distance with the convex tooth on the inner wall of the embedded tooth and will not mesh. However, when an accident occurs, causing the lifting device to fall, at this time, due to the excessively fast falling speed and the effect of the counterweight, the elliptical teeth generate a centrifugal force. At this time, the arc-shaped convex tooth will be stuck in the notch of the notch tube, and the convex tooth 2 will mesh with the convex tooth on the inner wall of the embedded tooth. Since the embedded tooth and the fixing device 4 are slidably connected, but the connection between the two is very rough, the friction force is very large during sliding, thereby achieving the effect of slowly braking the lifting device.

[0016] (2) The present invention utilizes the characteristic that the inner gear rotates when the above-mentioned lifting device falls, and a rotating plate is arranged on both sides of the outer wall of the inner gear. When the inner gear rotates under force, the protruding blocks fixedly connected to the outer wall of the inner gear will also rotate together at the same time, and slide and squeeze the protruding tooth three. Since the rotating plate and the rotating shaft fixed to the inner wall of the chassis are rotationally connected, when the protruding tooth three is driven by the force from the protruding block to drive the rotating plate to rotate around the rotating shaft, the friction plate fixedly connected to the rotating plate will also force and squeeze the inner gear at the same time. The greater the force of the inner gear rotating, the greater the force squeezed by the friction plate, thereby achieving a final braking effect. After the lifting device resumes normal operation, the inner gear stops being subjected to force, and the return spring fixedly connected to the rotating plate causes the rotating plates on both sides of the inner gear to return to their original positions. At the same time, the protruding blocks will also return to their original positions due to gravity, thereby maintaining the normal operation of the equipment.

[0017] (3) The present invention utilizes the characteristic that the pressure plate is pressed downward by a human body when stepping on it. Five fixed columns and telescopic springs are arranged at the bottom of the pressure plate, so that the pressure plate has a telescopic function. After a person steps on the pressure plate, the pressure plate is pressed downward, and at the same time, the pressure plate is pressed downward together. Clean water will press the small circular plate upward from the bottom of the pressure plate to make the small circular plate open upward. However, due to the small convex teeth on the side wall of the rotating rod, the small circular plate can only open a given gap to allow clean water to flow into the top of the pressure plate. After the person leaves the pressure plate, the pressure plate moves upward under the action of the telescopic spring, and at the same time, the clean water on the pressure plate moves upward. At this time, the small circular plate is closed downward due to gravity. Since the clean water presses the fixed plate upward on the pressure plate, it will flow into the water inlet 2 and out of the water outlet, so that the top of the pressure plate is clean and avoids erosion by seawater. After being cleaned, the clean water becomes sewage and flows into the sewage inlet.

[0018] (4) The present invention utilizes the characteristic that the pressure plate will rebound due to inertia when the lifting device falls, and an active ball is arranged in the water inlet. When the lifting device fails and falls, the human body will maintain the status quo due to inertia and will not continue to apply a downward force to the pressure plate. At this time, the pressure plate will move upward under the action of the telescopic spring, and bring clean water into the water inlet 2 and then out of the water outlet. In order to prevent clean water from flowing out of the water outlet when the person does not leave the pressure plate, the active ball arranged in the water inlet will continue to maintain the status quo due to inertia and will not move downward, thereby blocking the passage from the water inlet 2 to the water outlet, so that clean water will not accidentally flow out of the water outlet. At this time, the fixed teeth will play a limiting role to prevent the active ball from falling out of the water outlet and affecting subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is an exploded schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the lifting mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the interior of the lifting mechanism of the present invention;

[0023] Figure 4 It is a schematic diagram of the interior of the brake and deceleration mechanism of the present invention;

[0024] Figure 5 It is a schematic diagram of the braking and decelerating mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the external details of the braking and decelerating mechanism of the present invention;

[0026] Figure 7 It is a cross-sectional schematic diagram of the cleaning mechanism of the present invention;

[0027] Figure 8 For the present invention Figure 7 A is an enlarged schematic diagram.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] In the figure: 1. lifting mechanism; 101. chassis; 102. lifting platform; 103. heat sink; 104. heat dissipation hole; 105. guardrail door; 106. guardrail; 107. handrail device; 108. ladder; 109. fixing device 1; 110. convex tooth 1; 111. fixing device 2; 112. power motor; 113. transmission gear; 114. lifting gear; 115. fixing device 3; 116. conveyor belt; 2. brake slow-moving mechanism; 201. fixing device 4; 202. embedded tooth; 203. notched tube; 204. elliptical tooth; 205. counterweight; 206. Arc-shaped convex tooth; 207, convex tooth two; 208, protruding block; 209, rotating shaft; 210, rotating plate; 211, friction plate; 212, convex tooth three; 213, reset spring; 3, cleaning mechanism; 301, pressure plate; 302, fixed column; 303, telescopic spring; 304, fixed pile; 305, pressure plate; 306, isolation plate; 307, sewage inlet; 308, fixed plate; 309, water inlet one; 310, sewage outlet; 311, rotating rod; 312, small round plate; 313, water inlet two; 314, water outlet; 315, movable ball; 316, fixed tooth. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] For example, see Figure 1 - Figure 3 The present invention is a lifting device for offshore wind power operation, comprising a lifting mechanism 1, the lifting mechanism 1 also comprising a chassis 101, a lifting platform 102 is fixedly connected to one end of the outer wall of the chassis 101 near the bottom, and a heat sink 103 is fixedly connected to the outer wall of the chassis 101;

[0032] The brake deceleration mechanism 2 includes a fixing device 201 fixedly connected to the inner wall of the chassis 101, an end of the outer wall of the fixing device 201 away from the chassis 101 is rotatably connected to an inlay 202, and a notched tube 203 is rotatably connected to the inner wall of the inlay 202;

[0033] The cleaning mechanism 3 comprises a pressure plate 301 slidably connected to the inner wall of the lifting platform 102 , a fixing column 302 is fixedly connected to the bottom of the pressure plate 301 , and a telescopic spring 303 is fixedly connected to the bottom of the fixing column 302 .

[0034] The lifting mechanism 1 also includes a plurality of heat dissipation holes 104 opened on the outer wall of the heat sink 103, a guardrail door 105 is rotatably connected to the outer wall of the chassis 101, a guardrail 106 is fixedly connected to the top of the lifting platform 102, a handrail device 107 is fixedly connected to the top of the lifting platform 102, and the outer wall of the guardrail 106 is fixedly connected to the outer wall of the handrail device 107 away from the chassis 101. Since the tower is very high, the power motor will generate a lot of heat when running for a long time. Heat dissipation holes are opened on the heat sink to allow air to circulate, so that the power motor can achieve a heat dissipation purpose. Guardrail doors and guardrails are set on the top of the lifting platform, which provide a safety guarantee for people riding the lifting device, so that people who ride will feel more at ease when standing on it.

[0035] The lifting mechanism 1 also includes a ladder 108 slidably connected to the inner wall of the handrail device 107, a fixing device 109 is fixedly connected to the outer wall of the ladder 108, and a plurality of protruding teeth 110 are fixedly connected to the end of the side wall of the fixing device 109 away from the handrail device 107. A fixing device 2 111 is fixedly connected to the end of the inner wall of the chassis 101 close to the lifting platform 102. The handrail device arranged on one side of the ladder is similar to a handrail for holding the ladder, and the two are slidably connected, which can provide a better stabilizing effect and prevent the lifting device from shaking too much during lifting.

[0036] The lifting mechanism 1 also includes a power motor 112 fixedly connected to the outer wall of the second fixing device 111, a transmission gear 113 is fixedly connected to one end of the outer wall of the power motor 112 near the ladder 108, a lifting gear 114 is fixedly connected to the outer wall of the transmission gear 113, and the side wall of the lifting gear 114 is meshed with the side wall of the convex tooth 110, a fixing device 3 115 is fixedly connected to the inner wall of the chassis 101, and the outer wall of the fixing device 3 115 is rotatably connected to the side wall of the transmission gear 113, and a conveyor belt 116 is meshed with the side wall of the transmission gear 113. The transmission gear is rotated by the power motor, and the conveyor belt is driven to rotate the upper and lower transmission gears synchronously. In addition, the transmission gear is fixedly connected to the lifting gear, and when the transmission gear rotates, the lifting gear is driven to rotate, and the lifting gear is meshed with the convex tooth 1 on the ladder, so that when the lifting gear rotates, the entire lifting device is driven to rise and fall.

[0037] For example 2, please refer to Figure 4 - Figure 8The present invention is a lifting device for offshore wind power operations. On the basis of the first embodiment, the braking and decelerating mechanism 2 also includes an elliptical tooth 204 that penetrates and is connected to the side wall of the notch tube 203. The outer wall of the notch tube 203 is fixedly connected to the outer wall of the transmission gear 113. A counterweight block 205 is fixedly connected to the outer wall of the elliptical tooth 204. An arc-shaped convex tooth 206 is fixedly connected to the inner wall of the elliptical tooth 204. A convex tooth 207 is fixedly connected to the side wall of the elliptical tooth 204. A protruding block 208 is fixedly connected to the outer wall of the embedded tooth 202. When the lifting device falls rapidly, the elliptical tooth generates centrifugal force. A transmission gear is arranged inside the chassis. The notch tube is fixedly connected to the outer wall of the transmission gear. When the lifting device is operating normally, the speed will be a constant value, not too fast or too slow, the arc-shaped convex tooth will only have a simple contact with the notch tube, and will not be completely stuck in the notch of the notch tube. The convex tooth two will also have a given distance from the convex tooth at the inner wall of the embedded tooth and will not mesh. However, when an accident occurs, the lifting device will fall. At this time, due to the excessively fast falling speed and the effect of the counterweight, the elliptical tooth will generate a centrifugal force. At this time, the arc-shaped convex tooth will be stuck in the notch of the notch tube, and the convex tooth two will mesh with the convex tooth on the inner wall of the embedded tooth. Since the embedded tooth and the fixing device four are slidingly connected, but the connection between the two is very rough, the friction is very large when sliding, thereby achieving a slow braking effect of the lifting device.

[0038] The brake deceleration mechanism 2 also includes a rotating shaft 209 fixedly connected to the inner wall of the chassis 101, a rotating plate 210 is rotatably connected to the side wall of the rotating shaft 209, the outer wall of the rotating plate 210 is rotatably connected to the inner wall of the chassis 101, a friction plate 211 is fixedly connected to the outer wall of the rotating plate 210, a convex tooth three 212 is fixedly connected to the outer wall of the rotating plate 210, and a return spring 213 is fixedly connected to the outer wall of the rotating plate 210. When the above-mentioned lifting device falls, the inner teeth will rotate. A rotating plate is arranged on both sides of the outer wall of the inner teeth. When the inner teeth are rotated under force, the protruding blocks fixedly connected to the outer wall of the inner teeth will also rotate together at the same time. The cam is moved and a sliding extrusion is performed on the convex tooth three. Since the rotating plate and the rotating shaft fixed to the inner wall of the chassis are rotatably connected, when the convex tooth three is squeezed by the force from the protruding block and drives the rotating plate to rotate around the rotating shaft, the friction plate fixedly connected to the rotating plate will also squeeze the inner gear at the same time. The greater the force of the inner gear rotating, the greater the force squeezed by the friction plate, thereby achieving a final braking effect. After the lifting device resumes normal operation, the inner gear stops being stressed, and the return spring fixedly connected to the rotating plate makes the rotating plates on both sides of the inner gear return to their original positions. At the same time, the protruding block will also return to its original position due to gravity, thereby maintaining the normal operation of the equipment.

[0039] The cleaning mechanism 3 also includes a fixed pile 304 fixedly connected to the bottom of the pressure plate 301, and a pressure plate 305 is fixedly connected to the bottom of the fixed pile 304. An isolation plate 306 is fixedly connected to the end of the inner wall of the lifting platform 102 away from the pressure plate 301. A sewage inlet 307 is provided on the outer wall of the pressure plate 301. A fixed plate 308 is fixedly connected to the top of the isolation plate 306 close to the chassis 101. The inner wall of the fixed plate 308 is slidably connected to the outer wall of the fixed pile 304. By utilizing the characteristic that the pressure plate is pressed downward when a human body steps on it, five fixed columns and telescopic springs are arranged at the bottom of the pressure plate to give the pressure plate a telescopic function. After stepping on the pressure plate, the pressure plate is pressed downward by force, and the pressure plate is pressed downward together with it. The clean water will squeeze the small circular plate upward from the bottom of the pressure plate to make the small circular plate open upward. However, due to the small convex teeth on the side wall of the rotating rod, the small circular plate can only open a given gap to allow clean water to flow into the top of the pressure plate. After people leave the pressure plate, the pressure plate moves upward under the action of the telescopic spring, and also drives the clean water on the pressure plate to move upward. At this time, the small circular plate is closed downward due to gravity. Since the clean water pressure plate squeezes the fixed plate upward, it will flow into the water inlet 2 and out of the water outlet, so that the top of the pressure plate is clean and avoids erosion by seawater. After being cleaned, the clean water becomes sewage and flows into the sewage inlet.

[0040] The cleaning mechanism 3 also includes a water inlet 1 309 provided on the side wall of the lifting platform 102, a sewage outlet 310 provided on the side wall of the lifting platform 102, a rotating rod 311 rotatably connected to the top of the pressure plate 305, a small circular plate 312 fixedly connected to the side wall of the rotating rod 311, a water inlet 2 313 provided on the inner wall of the lifting platform 102, a water outlet 314 provided on the outer wall of the chassis 101, an active ball 315 slidably connected to the inner wall of the water inlet 2 313, and a fixed tooth 316 fixedly connected to the side wall of the chassis 101. When the lifting device falls, due to inertia, the pressure plate will rebound, and a When the lifting device fails and falls, the human body will maintain its current status due to inertia and will not continue to give a downward force to the pressure plate. At this time, the pressure plate will move upward under the action of the telescopic spring, and bring clean water into the water inlet 2 and then out of the water outlet. To prevent clean water from flowing out of the water outlet without the person leaving the pressure plate, the movable ball set in the water inlet will continue to maintain its current status due to inertia and will not move downward, blocking the passage from the water inlet 2 to the water outlet, so that clean water will not accidentally flow out of the water outlet. At this time, the fixed teeth will play a limiting role to prevent the movable ball from falling out of the water outlet and affecting subsequent use.

[0041] A specific application of this embodiment is: when using the device, the device is installed at a desired position, and the power supply of the power motor 112 is turned on. A transmission gear 113 is set inside the chassis 101, and the notch tube 203 is fixedly connected to the outer wall of the transmission gear 113. When the lifting device is operating normally, the speed will be a constant value, not too fast or too slow, and the arc-shaped convex tooth 206 will only have a simple contact with the notch tube 203 and will not be completely stuck in the notch of the notch tube 203. The convex tooth 207 will also be in contact with the inner wall of the embedded tooth 202. The convex teeth have a given distance and will not mesh. However, when an accident occurs, the lifting device falls. At this time, due to the excessively fast falling speed and the effect of the counterweight 205, the elliptical tooth 204 generates a centrifugal force, and the arc-shaped convex tooth 206 is stuck in the notch of the notch tube 203. At the same time, the convex tooth 207 will mesh with the convex teeth on the inner wall of the embedded tooth 202. Since the embedded tooth 202 and the fixing device 4 201 are slidably connected, but the connection between the two is very rough, the friction force is very large when sliding, so as to achieve a slow braking effect of the lifting device. When the lifting device is dropped, the inner gear 202 rotates. A rotating plate 210 is arranged on both sides of the outer wall of the inner gear 202. When the inner gear 202 is rotated by force, the protruding block 208 fixedly connected to the outer wall of the inner gear 202 will also rotate together and slide and squeeze the protruding tooth 3 212. Since the rotating plate 210 is rotatably connected to the rotating shaft 209 fixed to the inner wall of the chassis 101, when the protruding tooth 3 212 is squeezed by the force from the protruding block 208, the rotating plate 210 is driven to rotate around the rotating shaft 209. During rotation, the friction plate 211 fixedly connected to the rotating plate 210 will also exert a force to squeeze the inner gear 202. The greater the force of the inner gear 202 rotating, the greater the force exerted by the friction plate 211 to achieve a final braking effect. After the lifting device resumes normal operation, the inner gear 202 stops being subjected to force, and the return spring 213 fixedly connected to the rotating plate 210 restores the rotating plate 210 on both sides of the inner gear 202 to their original positions. At the same time, the protruding block 208 will also return to its original position due to gravity, thereby maintaining the normal operation of the equipment.

[0042] By utilizing the characteristic that the pressure plate 301 is pressed downward by the human body when it is stepped on, five fixing columns 302 and telescopic springs 303 are arranged at the bottom of the pressure plate 301, so that the pressure plate 301 has a telescopic function. After the person steps on the pressure plate 301, the pressure plate 301 is pressed downward by the force, and at the same time, the pressure plate 305 is pressed downward together, and the clean water will press the small circular plate 312 upward from the bottom of the pressure plate 305 to make the small circular plate 312 open upward. However, due to the small convex teeth on the side wall of the rotating rod 311, the small circular plate 312 can only be opened to a given The gap allows clean water to flow into the top of the pressure plate 305. After the person leaves the pressure plate 301, the pressure plate 301 moves upward under the action of the telescopic spring 303, and at the same time, the clean water on the pressure plate 305 moves upward. At this time, the small circular plate 312 is closed downward due to gravity. Since the clean water pressure plate 301 presses the fixed plate 308 upward, it will flow into the water inlet 313 and out of the water outlet 314, so that the top of the pressure plate 301 is clean and avoids erosion by seawater. After being cleaned, the clean water becomes sewage and flows into the sewage inlet 307.

[0043] When the lifting device falls, due to inertia, the pressure plate 301 will rebound. An active ball 315 is set in the water inlet. When the lifting device fails and falls, the human body will maintain the status quo due to inertia and will not continue to give the pressure plate 301 a downward force. At this time, the pressure plate 301 will be moved upward by the telescopic spring 303, and bring clean water into the water inlet 313 and then out of the water outlet 314. To prevent clean water from flowing out of the water outlet 314 without the person leaving the pressure plate 301, the active ball 315 set in the water inlet will continue to maintain the status quo due to inertia and will not move downward, blocking the passage from the water inlet 313 to the water outlet 314, so that clean water will not accidentally flow out of the water outlet 314. At this time, the fixed tooth 316 will play a limiting role to prevent the active ball 315 from falling out of the water outlet 314 and affecting subsequent use.

[0044] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A lifting device for offshore wind power operations, comprising a lifting mechanism (1), the lifting mechanism (1) further comprising a machine box (101), a lifting platform (102) being fixedly connected to one end of the outer wall of the machine box (101) near the bottom, a heat sink (103) being fixedly connected to the outer wall of the machine box (101), characterized in that: Also includes: A brake deceleration mechanism (2), the brake deceleration mechanism (2) comprising a fixing device four (201) fixedly connected to the inner wall of the chassis (101), an end of the fixing device four (201) on the outer wall away from the chassis (101) being rotatably connected to an inner cog (202), and a notched tube (203) being rotatably connected to the inner wall of the inner cog (202); A cleaning mechanism (3), the cleaning mechanism (3) comprising a pressure plate (301) slidably connected to the inner wall of the lifting platform (102), the bottom of the pressure plate (301) being fixedly connected to a fixing column (302), and the bottom of the fixing column (302) being fixedly connected to a telescopic spring (303); The cleaning mechanism (3) further comprises a fixing pile (304) fixedly connected to the bottom of the pressure plate (301); a pressure plate (305) is fixedly connected to the bottom of the fixing pile (304); an isolation plate (306) is fixedly connected to the inner wall of the lifting platform (102) at one end away from the pressure plate (301); a sewage inlet (307) is provided at the outer wall of the pressure plate (301); a fixing plate (308) is fixedly connected to the top end of the isolation plate (306) close to the chassis (101); and the inner wall of the fixing plate (308) is slidably connected to the outer wall of the fixing pile (304).

2. A lifting device for offshore wind power operations according to claim 1, characterized in that: The lifting mechanism (1) further comprises a plurality of heat dissipation holes (104) provided on the outer wall of the heat dissipation plate (103); a guardrail door (105) is rotatably connected to the outer wall of the chassis (101); a guardrail (106) is fixedly connected to the top of the lifting platform (102); a handrail device (107) is fixedly connected to the top of the lifting platform (102); and the outer wall of the guardrail (106) is fixedly connected to an end of the outer wall of the handrail device (107) away from the chassis (101).

3. A lifting device for offshore wind power operations according to claim 2, characterized in that: The lifting mechanism (1) further comprises a ladder (108) slidably connected to the inner wall of the handrail device (107); a fixing device 1 (109) is fixedly connected to the outer wall of the ladder (108); a side wall of the fixing device 1 (109) is fixedly connected to one end away from the handrail device (107) with a plurality of protruding teeth 1 (110); and a fixing device 2 (111) is fixedly connected to one end of the inner wall of the chassis (101) close to the lifting platform (102).

4. A lifting device for offshore wind power operations according to claim 3, characterized in that: The lifting mechanism (1) further comprises a power motor (112) fixedly connected to the outer wall of the second fixing device (111); a transmission gear (113) is fixedly connected to one end of the outer wall of the power motor (112) close to the ladder (108); a lifting gear (114) is fixedly connected to the outer wall of the transmission gear (113); a side wall of the lifting gear (114) is meshingly connected to the side wall of the convex tooth (110); a fixing device (115) is fixedly connected to the inner wall of the chassis (101); the outer wall of the fixing device (115) is rotatably connected to the side wall of the transmission gear (113); and a conveyor belt (116) is meshingly connected to the side wall of the transmission gear (113).

5. A lifting device for offshore wind power operations according to claim 4, characterized in that: The braking and decelerating mechanism (2) further comprises an elliptical tooth (204) penetrating and connected to the side wall of the notched tube (203); the outer wall of the notched tube (203) is fixedly connected to the outer wall of the transmission gear (113); a counterweight (205) is fixedly connected to the outer wall of the elliptical tooth (204); an arc-shaped convex tooth (206) is fixedly connected to the inner wall of the elliptical tooth (204); a convex tooth 2 (207) is fixedly connected to the side wall of the elliptical tooth (204); and a protruding block (208) is fixedly connected to the outer wall of the embedded tooth (202).

6. A lifting device for offshore wind power operations according to claim 5, characterized in that: The braking and decelerating mechanism (2) further comprises a rotating shaft (209) fixedly connected to the inner wall of the chassis (101); a rotating plate (210) is rotatably connected to the side wall of the rotating shaft (209); an outer wall of the rotating plate (210) is rotatably connected to the inner wall of the chassis (101); a friction plate (211) is fixedly connected to the outer wall of the rotating plate (210); a convex tooth three (212) is fixedly connected to the outer wall of the rotating plate (210); and a return spring (213) is fixedly connected to the outer wall of the rotating plate (210).

7. A lifting device for offshore wind power operations according to claim 6, characterized in that: The cleaning mechanism (3) further comprises a water inlet 1 (309) provided on the side wall of the lifting platform (102); a sewage outlet (310) is provided on the side wall of the lifting platform (102); a rotating rod (311) is rotatably connected to the top of the pressure plate (305); a small circular plate (312) is fixedly connected to the side wall of the rotating rod (311); a water inlet 2 (313) is provided on the inner wall of the lifting platform (102); a water outlet (314) is provided on the outer wall of the chassis (101); a movable ball (315) is slidably connected to the inner wall of the water inlet 2 (313); and a fixed tooth (316) is fixedly connected to the side wall of the chassis (101).

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