A retractable air bag type swing arm wave energy power generation device and a use method thereof

Abstract

This invention proposes a retractable airbag-type swing arm wave energy generation device and its usage method, belonging to the field of marine renewable energy development and utilization technology. It solves the problems of traditional rigid floating bodies, such as large weight, low capture efficiency, and susceptibility to structural damage in extreme sea states. It includes a unit housing, one side of which is connected to the side wall of an external floating platform, and the other side of which has a rotating hinge support. One end of the telescopic swing arm is connected to an airbag float, and the other end is hinged to the rotating hinge support and equipped with a first gear. Inside the unit housing are an acceleration-type one-way transmission gearbox, an electric generator, and an air pump. The first gear, the acceleration-type one-way transmission gearbox, and the electric generator are sequentially connected in a transmission manner. The air pump is connected to the airbag float. The drive mechanism is installed on the outer wall of the unit housing, above the rotating hinge support, and is used to drive the locking mechanism to switch between locked and unlocked states. This device can perform functions such as continuous energy capture and generation in normal sea states and active retraction and hazard avoidance in extreme sea states.

Description

Technical Field

[0001] This invention relates to the field of marine renewable energy development and utilization technology, and in particular to a retractable airbag-type swing arm wave energy power generation device and its usage method. Background Technology

[0002] As global fossil fuel resources become increasingly depleted and ecological and environmental pressures continue to intensify, market demand for the development of clean and renewable energy continues to rise. Wave energy, as a clean energy source with abundant reserves, wide distribution, and strong sustainability, has advantages over wind and solar energy, such as stable output, high energy density, and less susceptibility to weather intermittentity. It can be widely used in scenarios such as auxiliary power supply for ships at sea, independent power supply for islands, and long-term power supply for marine monitoring instruments, and has huge potential for industrial application.

[0003] Currently, various types of wave energy conversion equipment have been developed both domestically and internationally. Swing-arm wave energy generators, with their advantages of simple transmission structure, short energy conversion link, good adaptability to small and medium wave conditions, and low construction cost, have been widely researched and piloted in the field of small and medium-sized marine energy supply. However, the marine environment is complex and changeable, with frequent extreme sea conditions such as giant waves and typhoons in nearshore and offshore areas. Existing traditional swing-arm wave energy generators mostly adopt fixed rigid floating body structures, which cannot adjust in a timely manner according to changes in sea conditions. Under extreme sea conditions, the floating body of the device directly bears high-intensity wave impact loads, which can easily lead to structural damage, component breakage, and transmission failure, seriously affecting the overall structural safety of the device and significantly shortening the effective operating window. Therefore, developing a swing-arm wave energy generator that can adapt to sea conditions, has active risk avoidance capabilities, high reliability, and a long operating window is of great significance for promoting the commercial application of wave energy engineering. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a retractable airbag-type swing-arm wave energy generation device and its usage method. Through a pneumatic control system and a rotary locking mechanism, high-pressure inflation is achieved under normal sea conditions, allowing the airbag float to fully expand to a large volume, effectively reducing the activation threshold, significantly improving wave energy capture efficiency, and ensuring continuous and efficient power generation. Under extreme sea conditions, rapid degassing causes the airbag to contract sharply, while the swing arm retracts and is locked by the locking mechanism, significantly reducing wave impact loads, actively avoiding hazards, and effectively preventing structural fatigue damage, reducing downtime, and extending the cumulative effective working time. This solves the problems of traditional rigid floats, such as large weight, high activation threshold, low capture efficiency, and susceptibility to structural damage under extreme sea conditions. The device possesses highly reliable operation capabilities with all-sea-condition adaptive adjustment, active hazard avoidance, and a long service life, effectively improving overall operational efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a retractable airbag-type swing arm wave energy generation device, comprising a unit box, an airbag float, a telescopic swing arm, a drive mechanism, and a locking component; One side of the unit box is connected to the side wall of the external floating platform, and the other side of the outer wall is provided with a slewing hinge support. One end of the telescopic swing arm is connected to the airbag float, and the other end is hinged to the slewing hinge support and is provided with a first gear. The unit box is equipped with an acceleration one-way transmission gearbox, an electric generator and an air pump. The input end of the acceleration one-way transmission gearbox is connected to the first gear, and the output end is connected to the electric generator. The air pump is connected to the airbag float. The drive mechanism is installed on the outer wall of the unit box, above the slewing hinge support, and is used to drive the locking member to switch between the locked and unlocked states. In the locked state, the locking member engages with the tooth groove of the first gear, forming a circumferential limiting fit with the first gear; In the unlocked state, the locking member retracts from the tooth groove and disengages from the first gear.

[0006] Furthermore, the airbag float is hemispherical, with the end face of the airbag float facing upwards and connected to the bottom surface of the telescopic swing arm.

[0007] Furthermore, the telescopic swing arm includes a first-stage swing arm rod and a second-stage swing arm rod that are slidably connected inside and outside, as well as a pneumatic telescopic rod. The fixed end of the pneumatic telescopic rod is connected to the second-stage swing arm rod, and the movable end is connected to the first-stage swing arm rod. The pneumatic telescopic rod is connected to an air pump.

[0008] Furthermore, the bottom surface of the unit box is provided with multiple water-permeable holes, and the working surfaces of the toothed groove and locking component are all treated with wear-resistant materials.

[0009] Furthermore, the driving mechanism is an electric motor, and the locking element is a sector-shaped disc.

[0010] Furthermore, the retractable airbag-type swing arm wave energy generation device also includes a detection system and a controller. The controller is electrically connected to the detection system, the electric generator, the air pump, and the drive mechanism. The detection system collects marine environmental parameters and device operating status in real time and transmits them to the controller.

[0011] Furthermore, the detection system includes a wave parameter detection component, a swing arm motion status detection component, an airbag internal pressure detection component, and a swing arm position detection component. The wave parameter detection component is installed on the top of the side wall of the unit housing and is used to detect the effective wave height of the sea area where the device is located in real time. Hs Wave period T With wave speed cThe swing arm motion state detection component is installed inside the end rod of the telescopic swing arm near the airbag float, and is used to detect the swing acceleration of the telescopic swing arm in real time. α angular velocity of oscillation ω Swing angle θ Vertical motion amplitude of the airbag float h The airbag internal pressure detection component is connected to the end of the air passage connecting the airbag float and the air pump, and is used to detect the internal air pressure value of the airbag float in real time. p and the rate of change of air pressure Δ p / Δ t The swing arm position detection component is installed on the top of the drive mechanism and is used to detect the position of the telescopic swing arm relative to the locking member in real time. x The controller has a preset effective wave height. Hs Wave period T Wave speed c oscillation acceleration α angular velocity of oscillation ω Swing angle θ Vertical motion amplitude of the airbag float h air pressure inside the airbag float p and the rate of change of air pressure Δ p / Δ t The threshold for judgment.

[0012] Furthermore, the wave parameter detection component is a radar wave height meter; the swing arm motion state detection component is an acceleration sensor; the airbag internal pressure detection component is a pressure sensor; and the swing arm position detection component is a position sensor.

[0013] A method for using a retractable airbag-type swing arm wave energy generation device, wherein the... Hs , α Δ p / Δ t The judgment thresholds are preset to TH1, TH2, and TH3 respectively, and the locking position calibration threshold of the telescopic swing arm is preset to TH4. when Hs ≤TH1, and α ≤TH2, and Δ p / Δ t When the sea state is ≤TH3, the controller determines that the current sea state is normal. At this time, the device maintains the normal power generation mode, the drive mechanism drives the locking part to switch to the unlocked state, the air pump maintains the rated inflation volume of the airbag float; the telescopic swing arm is in the extended state, maintaining the set working length; the wave energy captured by the airbag float is transmitted to the electric generator in sequence through the telescopic swing arm, the first gear, and the acceleration one-way transmission gearbox and converted into electrical energy. when Hs >TH1, or α >TH2, or Δp / Δ t At TH3, the controller determines it to be an extreme sea state and immediately executes the avoidance procedure. The air pump actively evacuates the airbag float; the telescopic arm returns to its retracted state; the electric generator switches to torque output mode, driving the telescopic arm to swing upwards around the pivot support via the acceleration one-way transmission gearbox and the first gear, until... x =TH4, the controller determines that the telescopic arm has reached the preset position to be retracted, and the drive mechanism drives the locking component to switch to the locked state, reducing the wave-facing area of ​​the device and avoiding structural damage.

[0014] A floating platform, with a retractable airbag-type swing arm wave energy generation device installed on its side wall.

[0015] Compared with the prior art, the beneficial effects of the retractable airbag-type swing arm wave energy generation device and its usage method described in this invention are: 1. This invention achieves adaptive adjustment of the working mode by adjusting the length of the telescopic swing arm and the size of the airbag float through an air pump, thus solving the problems of heavy weight, high start-up threshold and low capture efficiency of traditional rigid floats.

[0016] 2. This invention uses a detection system to monitor sea conditions in real time. Under extreme sea conditions, the controller drives an air pump to rapidly exhaust and retract the airbag float, while simultaneously driving an electric generator to reverse, outputting torque to retract and lock the telescopic arm. This significantly reduces wave impact loads under extreme sea conditions, effectively avoiding structural damage, preventing downtime for maintenance due to malfunctions, extending the cumulative effective working time throughout the entire lifespan, and significantly improving the environmental adaptability and overall operational efficiency of the wave energy power generation device. It is suitable for small to medium-sized offshore energy supply scenarios with variable wave conditions, poor maintenance accessibility, long service cycles, and high operational reliability requirements.

[0017] 3. To address the corrosive conditions of high salt spray and high humidity in the ocean, the key mechanical components of this invention have undergone enhanced anti-corrosion treatment: the airbag float is made of weather-resistant rubber, possessing excellent resistance to salt spray and aging, making it suitable for the harsh corrosive marine environment. Simultaneously, the working surfaces of the first gear and locking components are treated with wear-resistant materials, further improving the operational reliability of the device. The bottom surface of the unit housing described in this invention is equipped with water-permeable holes to prevent water accumulation inside the housing and the resulting additional resistance, ensuring stable power generation efficiency. Attached Figure Description

[0018] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of a retractable airbag-type swing arm wave energy generation device according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a retractable airbag-type swing arm wave energy generation device according to the present invention. Figure 2 ; Figure 3 For the present invention Figure 1 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the structure of the unit enclosure described in this invention; Figure 5 This is a front view of the unit enclosure described in this invention; Figure 6 For the present invention Figure 5 Sectional view along line B; Figure 7 For the present invention Figure 4 Internal structure diagram; Figure 8 This is a schematic diagram of the telescopic swing arm described in this invention; Figure 9 For the present invention Figure 8 Internal structure diagram at point C; In the diagram: 1-Unit housing; 2-Airbag float; 3-Telescopic swing arm; 4-Drive mechanism; 5-Locking component; 6-Detection system; 7-Controller; 11-Slewing hinge support; 12-Accelerating one-way transmission gearbox; 13-Electric generator; 131-Transmission line; 14-Air pump; 141-Diverter valve; 142-Air pipe one; 143-Air pipe two; 15-Water permeable hole; 31-First gear; 32-Swing arm first stage rod; 33-Swing arm second stage rod; 34-Pneumatic telescopic rod; 61-Wave parameter detection component; 62-Swing arm motion status detection component; 63-Airbag internal pressure detection component; 64-Swing arm position detection component. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.

[0020] I. Detailed Implementation Method 1, see [link / reference] Figure 1-9 This embodiment describes a retractable airbag-type swing arm wave energy generation device, which includes a unit housing 1, an airbag float 2, a telescopic swing arm 3, a drive mechanism 4, and a locking component 5. One side of the unit box 1 is connected to the side wall of the external floating platform, and the other side of the outer wall is provided with a slewing hinge support 11. One end of the telescopic swing arm 3 is connected to the airbag float 2, and the other end is hinged to the slewing hinge support 11 and is provided with a first gear 31. The unit box 1 is equipped with an acceleration one-way transmission gearbox 12, an electric generator 13 and an air pump 14. The input end of the acceleration one-way transmission gearbox 12 is connected to the first gear 31 through a gear set, and the output end is connected to the electric generator 13 through a gear set. It is used to convert low-speed bidirectional rotation into high-speed one-way rotation. Specifically, it can transmit the torque in the upward direction of the telescopic swing arm 3 and filter out the torque in the downward direction. The air pump 14 is connected to the airbag float 2 and is used to inflate or de-inflate the airbag float 2.

[0021] The drive mechanism 4 is installed on the outer wall of the unit box 1 on the side where the rotary hinge support 11 is located, above the rotary hinge support 11, and is used to drive the locking member 5 to switch between the locked state and the unlocked state. In the locked state, the locking member 5 is engaged in the tooth groove of the first gear 31, forming a circumferential limiting engagement with the first gear 31, thereby restricting the rotational movement of the telescopic swing arm 3. In the unlocked state, the locking member 5 exits the tooth groove and disengages from the first gear 31, and the rotational movement of the telescopic swing arm 3 is unrestricted.

[0022] The airbag float 2 is hemispherical, with its flat end facing upwards and connected to the bottom surface of the telescopic swing arm 3. The airbag float 2 is made of weather-resistant rubber, possessing excellent resistance to salt spray and aging, making it suitable for harsh marine corrosive environments.

[0023] The telescopic swing arm 3 includes a primary swing arm rod 32 and a secondary swing arm rod 33, which are slidably connected inside and outside the arm, as well as a pneumatic telescopic rod 34. The fixed end of the pneumatic telescopic rod 34 is connected to the outer wall of the secondary swing arm rod 33, and the movable end is connected to the outer wall of the primary swing arm rod 32. The airbag float 2 is connected to the primary swing arm rod 32, and the first gear 31 is located at one end of the secondary swing arm rod 33. The pneumatic telescopic rod 34 is connected to the air pump 14. The air pump 14 establishes two air paths through a diversion valve 141, which can simultaneously realize the retraction and extension of the airbag float 2 and the extension and retraction of the pneumatic telescopic rod 34.

[0024] Preferably, the first-stage swing arm 32 has a downwardly curved section on the side away from the second-stage swing arm 33, which reduces the horizontal height of the airbag float 2 and facilitates interaction with waves.

[0025] The bottom surface of the unit box 1 is provided with multiple water-permeable holes 15.

[0026] The driving mechanism 4 is an electric motor, and the locking element 5 is a sector-shaped disk.

[0027] Preferably, the base of the first gear 31 and the gear set are both subjected to corrosion-resistant strengthening treatment, the working surfaces of the gear teeth are subjected to wear-resistant and anti-corrosion composite treatment, and the exposed surfaces of the gears are provided with an overall anti-corrosion coating. The core load-bearing components of the drive mechanism 4 are made of corrosion-resistant substrate, the locking parts 5 and the locking mating friction surfaces of the first gear 31 are subjected to integrated friction reduction and anti-corrosion treatment, and the exposed metal surfaces of the drive mechanism 4 are provided with multi-level anti-corrosion protection; a sealing structure is provided at the hinge joint of the telescopic swing arm 3 and the rotary hinge support 11, which is filled with an anti-corrosion lubricating medium to prevent seawater, salt spray and sand from entering the friction mating surface, ensuring long-term reliable hinge rotation and preventing the locking action from jamming due to rust. The hinge spindle and friction pair of the rotary hinge support 11 are subjected to wear-resistant and anti-corrosion strengthening treatment, and the outer surface is provided with a heavy-duty anti-corrosion system protection.

[0028] The retractable airbag-type swing arm wave energy generation device further includes a detection system 6 and a controller 7. The controller 7 is electrically connected to the detection system 6, the electric generator 13, the air pump 14, and the drive mechanism 4. The detection system 6 collects marine environmental parameters and device operating status in real time and transmits them to the controller 7.

[0029] The detection system 6 includes a wave parameter detection component 61, a swing arm motion state detection component 62, an airbag internal pressure detection component 63, and a swing arm position detection component 64. The wave parameter detection component 61 is installed on the top of the side wall of the unit housing 1 and is used to detect the effective wave height of the sea area where the device is located in real time. Hs Wave period T With wave speed c Since the direction of wave arrival is complex and variable, the wave parameter detection component 61 described in this invention can be configured as multiple components, respectively arranged on the side walls of the unit box 1 facing different directions, to detect waves from different directions; the swing arm motion state detection component 62 is installed inside the end rod of the telescopic swing arm 3 near the airbag float 2, and is used to detect the swing acceleration of the telescopic swing arm 3 in real time. α angular velocity of oscillation ω Swing angle θ Vertical motion amplitude of airbag float 2 h The airbag internal pressure detection component 63 is connected to the end of the air passage connecting the airbag float 2 and the air pump 14, and is used to detect the internal air pressure value of the airbag float 2 in real time. p and the rate of change of air pressure Δ p / Δ t The swing arm position detection component 64 is installed on the top of the drive mechanism 4 and is used to detect the position of the telescopic swing arm 3 relative to the locking member 5 in real time. x The controller 7 has the effective wave height preset within it. Hs Wave period T Wave speed c oscillation acceleration αangular velocity of oscillation ω Swing angle θ Vertical motion amplitude of airbag float 2 h 2. Internal air pressure value of the airbag float p and the rate of change of air pressure Δ p / Δ t The threshold for judgment.

[0030] Preferably, the wave parameter detection component 61 is a radar wave height meter; the swing arm motion state detection component 62 is an acceleration sensor; the airbag internal pressure detection component 63 is a pressure sensor; and the swing arm position detection component 64 is a position sensor.

[0031] The working principle of this invention is as follows: Normal operating conditions: The drive mechanism 4 drives the locking member 5 to rotate to a predetermined angle, releasing the lock on the telescopic swing arm 3; the electric generator 13 switches to torque output mode to adjust the swing arm secondary rod 33 to the working angle, and then the electric generator 13 switches to power output mode; the air pump 14 inflates the airbag float 2 through the diversion valve 141 and the second air pipe 143, and drives the pneumatic telescopic rod 34 through the diversion valve 141 and the first air pipe 142 to extend the swing arm primary rod 32; under the action of waves, the airbag float 2 drives the first gear 31 at the end of the swing arm secondary rod 33 to reciprocate around the slewing hinge support 11, and the low-frequency bidirectional reciprocating oscillation is converted into high-speed unidirectional rotational motion through the acceleration unidirectional transmission gearbox 12, which drives the electric generator 13 to generate electricity, which is output through the transmission line 131, completing the energy conversion from wave to machine to electricity.

[0032] Extreme operating conditions: The controller 7 determines that extreme sea conditions have occurred by detecting the parameters of the detection component. The air pump 14 runs in reverse to perform the air extraction action, causing the airbag float 2 to depress and drive the pneumatic telescopic rod 34 to retract. The electric generator 13 switches to the torque output mode, causing the swing arm secondary rod 33 to swing upward around the pivot support 11 until it reaches the preset position to be recovered. At this time, the drive mechanism 4 drives the locking member 5 to rotate and engage in the tooth groove of the first gear 31, locking the first gear 31.

[0033] A method for using a retractable airbag-type swing arm wave energy generation device, wherein the... Hs , α Δ p / Δ t The judgment thresholds are preset as TH1, TH2, and TH3 respectively, and the locking position calibration threshold of the telescopic swing arm 3 is preset as TH4. The controller 7 reads the parameter amplitude of each detection element in real time with a fixed sampling period and performs graded processing according to the judgment threshold. when Hs ≤TH1, and α ≤TH2, and Δ p / Δt When the sea state is ≤TH3, the controller 7 determines that the current sea state is normal. At this time, the device maintains the normal power generation mode, the drive mechanism 4 drives the locking part 5 to switch to the unlocked state, the air pump 14 maintains the rated inflation volume of the airbag float 2; the telescopic swing arm 3 is in the extended state, maintaining the set working length to maximize the wave capture efficiency; the wave energy captured by the airbag float 2 is transmitted to the electric generator 13 in sequence through the telescopic swing arm 3, the first gear 31, and the acceleration one-way transmission gearbox 12 to be converted into electrical energy. In this state, the device operates at full power without the need to start any protective adjustment. when Hs >TH1, or α >TH2, or Δ p / Δ t At TH3, the controller 7 determines it to be an extreme sea state and immediately executes the avoidance procedure. The air pump 14 actively evacuates the airbag float 2, and the airbag contracts within a preset time t, significantly reducing the wave-facing area of ​​the device and the excitation force of the waves on the airbag float 2; the telescopic swing arm 3 returns to its retracted state; the electric generator 13 switches to torque output mode, driving the telescopic swing arm 3 to swing upward around the pivot support 11 through the acceleration one-way transmission gearbox 12 and the first gear 31, until... x =TH4, the controller 7 determines that the telescopic arm 3 has reached the preset position to be retrieved, and the drive mechanism 4 drives the locking component 5 to switch to the locked state. At this point, the entire device is in the minimum wave-facing state, and the impact load of extreme waves is greatly reduced, effectively avoiding damage to the airbag float 2, telescopic arm 3, unit box 1 and other structures.

[0034] Preferably, TH1 = 3.5m; TH2 = 0.6g; TH3 = 1.2kPa / s; t = 10s.

[0035] Preferably, the controller 7 is configured with a multi-parameter joint triggering condition: when Hs >2.5m and α When >0.4g, or Hs >2.5m and Δ p / Δ t When >0.8kPa / s, or α >0.4g and Δ p / Δ t When the value is >0.8 kPa / s, or when all three parameters exceed the corresponding values ​​in the above combined conditions, it is also determined that the extreme sea state triggering conditions are met.

[0036] A floating platform, with a retractable airbag-type swing arm wave energy generation device installed on its side wall.

[0037] This invention aims to provide a stable, efficient, and highly adaptable wave energy power supply solution for offshore areas without shore-based power supply. Target application scenarios cover independent power supply for islands, long-term power supply for marine observation stations, power supply for equipment in nearshore aquaculture areas, and auxiliary power supply for ships. It performs functions such as continuous wave energy harvesting and power generation in normal sea conditions and active retraction and hazard avoidance in extreme sea conditions. This invention uses a swing-arm wave energy generation structure with airbag deployment and retraction functions as its core unit, combined with a pneumatic control system and locking mechanism, to achieve continuous wave energy conversion and stable power output in all sea conditions, both in nearshore and offshore environments without external power support.

[0038] The embodiments of the present invention disclosed above are merely illustrative of the invention. These embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A retractable airbag-type swing arm wave energy generation device, characterized in that, Includes unit housing (1), airbag float (2), telescopic swing arm (3), drive mechanism (4), and locking component (5); The unit box (1) is connected to the side wall of the external floating platform on one side, and a slewing hinge support (11) is provided on the outer wall of the other side. One end of the telescopic swing arm (3) is connected to the airbag float (2), and the other end is hinged to the slewing hinge support (11) and is provided with a first gear (31). The unit box (1) is equipped with an acceleration one-way transmission gearbox (12), an electric generator (13) and an air pump (14). The input end of the acceleration one-way transmission gearbox (12) is connected to the first gear (31) and the output end is connected to the electric generator (13). The air pump (14) is connected to the airbag float (2). The drive mechanism (4) is installed on the outer wall of the unit box (1) and located above the rotary hinge support (11) to drive the locking member (5) to switch between the locked state and the unlocked state. In the locked state, the locking member (5) is engaged in the tooth groove of the first gear (31) and forms a circumferential limiting fit with the first gear (31); In the unlocked state, the locking member (5) exits the tooth groove and disengages from the first gear (31).

2. The retractable airbag-type swing arm wave energy generation device according to claim 1, characterized in that, The airbag float (2) is hemispherical, and the end face of the airbag float (2) faces upward and is connected to the bottom face of the telescopic arm (3).

3. The retractable airbag-type swing arm wave energy generation device according to claim 1, characterized in that, The telescopic swing arm (3) includes a first-stage swing arm rod (32) and a second-stage swing arm rod (33) which are slidably connected inside and outside, as well as a pneumatic telescopic rod (34). The fixed end of the pneumatic telescopic rod (34) is connected to the second-stage swing arm rod (33), and the movable end is connected to the first-stage swing arm rod (32). The pneumatic telescopic rod (34) is connected to an air pump (14).

4. A retractable airbag-type swing arm wave energy generation device according to claim 1, characterized in that, The bottom surface of the unit box (1) is provided with multiple water-permeable holes (15), and the working surfaces of the tooth groove and the locking part (5) are all treated with wear resistance.

5. A retractable airbag-type swing arm wave energy generation device according to claim 1, characterized in that, The driving mechanism (4) is an electric motor, and the locking element (5) is a sector-shaped disk.

6. A retractable airbag-type swing arm wave energy generation device according to claim 1, characterized in that, It also includes a detection system (6) and a controller (7). The controller (7) is electrically connected to the detection system (6), the electric generator (13), the air pump (14), and the drive mechanism (4), respectively. The detection system (6) collects marine environmental parameters and device operating status in real time and transmits them to the controller (7).

7. A retractable airbag-type swing arm wave energy generation device according to claim 6, characterized in that, The detection system (6) includes a wave parameter detection component (61), a swing arm motion state detection component (62), an airbag internal pressure detection component (63), and a swing arm position detection component (64). The wave parameter detection component (61) is installed on the top of the side wall of the unit box (1) and is used to detect the effective wave height of the sea area where the device is located in real time. Hs Wave period T With wave speed c The arm motion state detection component (62) is installed inside the end rod of the telescopic arm (3) near the airbag float (2) to detect the swing acceleration of the telescopic arm (3) in real time. α angular velocity of oscillation ω Swing angle θ Vertical motion amplitude of the airbag float (2) h The airbag internal pressure detection component (63) is connected to the end of the air path connecting the airbag float (2) and the air pump (14) to detect the internal air pressure value of the airbag float (2) in real time. p and the rate of change of air pressure Δ p / Δ t The arm position detection component (64) is installed on the top of the drive mechanism (4) and is used to detect the position of the telescopic arm (3) relative to the locking member (5) in real time. x The controller (7) has the effective wave height preset within it. Hs Wave period T Wave speed c oscillation acceleration α angular velocity of oscillation ω Swing angle θ Vertical motion amplitude of airbag float (2) h 1. Air pressure value inside the airbag float (2) p and the rate of change of air pressure Δ p / Δ t The threshold for judgment.

8. A retractable airbag-type swing arm wave energy generation device according to claim 7, characterized in that, The wave parameter detection component (61) is a radar wave height meter; the swing arm motion state detection component (62) is an acceleration sensor; the airbag internal pressure detection component (63) is a pressure sensor; and the swing arm position detection component (64) is a position sensor.

9. A method of using a retractable airbag-type swing arm wave energy generation device as described in any one of claims 7 or 8, characterized in that, The Hs , α Δ p / Δ t The judgment thresholds are preset to TH1, TH2, and TH3 respectively, and the locking position calibration threshold of the telescopic swing arm (3) is preset to TH4. when Hs ≤TH1, and α ≤TH2, and Δ p / Δ t When ≤TH3, the controller (7) determines that the current sea state is normal. At this time, the device maintains the normal power generation mode, the drive mechanism (4) drives the locking part (5) to switch to the unlocked state, the air pump (14) maintains the rated inflation volume of the airbag float (2); the telescopic swing arm (3) is in the extended state, maintaining the set working length; the wave energy captured by the airbag float (2) is transmitted to the electric generator (13) in sequence through the telescopic swing arm (3), the first gear (31), and the acceleration one-way transmission gearbox (12) to be converted into electrical energy; when Hs >TH1, or α >TH2, or Δ p / Δ t At TH3, the controller (7) determines it to be an extreme sea state and immediately executes the avoidance procedure. The air pump (14) actively evacuates the airbag float (2); the telescopic arm (3) returns to its retracted state; the electric generator (13) switches to torque output mode, and through the acceleration one-way transmission gearbox (12) and the first gear (31), drives the telescopic arm (3) to swing upward around the pivot support (11) until... x =TH4, the controller (7) determines that the telescopic arm (3) has reached the preset position to be retracted, and the drive mechanism (4) drives the locking part (5) to switch to the locked state, reducing the wave-facing area of ​​the device and avoiding structural damage.

10. A floating platform, characterized in that, The side wall is provided with a retractable airbag-type swing arm wave energy generation device as described in any one of claims 1-8.

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