A water guide plate device for an ocean energy generator and its working method

Abstract

The present invention discloses a water guide plate device for a marine energy generator and its working method. The device includes a housing, a water guide plate, and a power generation component. The housing is open at the front and rear in the water flow direction. The water guide plate and the power generation component are sequentially arranged in the housing along the water flow direction. It is characterized in that it further includes: a water blocking component arranged inside the housing, the water blocking component is arranged in front of the water guide plate along the water flow direction, and is used for reducing the impact force of the water flow on the rear-end power generation component when the water flow is relatively rapid; by increasing the water-facing angle of the water blocking plate, the seawater is blocked, and the flow rate of the seawater is slowed down, thereby avoiding the problem that a relatively fast speed may increase the pressure on the blades, resulting in the overloading operation of the water turbine under the long-term impact of the water flow and reducing the service life of the generator.

Description

Technical Field

[0001] The present invention relates to the technical field of ocean energy power generation, and particularly to a water guide plate device for an ocean energy generator and its working method. Background Art

[0002] Ocean energy (including tidal current energy, wave energy, ocean current energy) refers to the mechanical energy of seawater flow. As a renewable energy source, it has rich reserves, is widely distributed, and has excellent development prospects and value. The main way to utilize ocean energy is power generation, and its working principle is similar to that of wind power generation and conventional hydropower generation, that is, through an energy conversion device, the mechanical energy of seawater is converted into electrical energy. Specifically, first, seawater impacts a water turbine, and the water turbine converts the energy of the water flow into rotational mechanical energy. Then, the water turbine drives a generator to generate electricity through a mechanical transmission system, and finally, it is converted into electrical energy.

[0003] Existing ocean energy generators guide the water flow by setting water guide plates, increasing the impact force of the water flow on the water turbine, and greatly improving the power generation efficiency of the generator. When the water turbine works for a long time, the rotation speed may be relatively different due to different water flow velocities. In the case of a relatively fast water flow, the relatively fast speed may increase the pressure on the blades, causing the water turbine to operate under overload under the long-term impact of the water flow and reducing the service life of the generator. Summary of the Invention

[0004] In order to overcome the deficiencies in the prior art, the present invention provides a water guide plate device for an ocean energy generator and its working method, which reduces the impact force of the water flow on the rear power generation component when the water flow is relatively fast by setting a water blocking component;

[0005] To achieve the above object, the technical solution adopted by the present invention is: A water guide plate device for an ocean energy generator, including a housing, a water guide plate, and a power generation component. The housing is open at the front and rear along the water flow direction. The water guide plate and the power generation component are sequentially arranged in the housing along the water flow direction. It is characterized in that it further includes: a water blocking component arranged inside the housing, the water blocking component is arranged in front of the water guide plate along the water flow direction and is used to reduce the impact force of the water flow on the rear power generation component when the water flow is relatively fast, and includes:

[0006] A mounting plate, arranged in front of the water guide plate and fixed on the inner wall of the housing;

[0007] A box body, rotatably connected to the mounting plate through a rotating shaft and arranged in front of the mounting plate;

[0008] A linear guiding unit, arranged inside the box body along the water flow direction. A movable block is slidably arranged on the linear guiding unit, and an elastic unit is arranged between the movable block and the inner wall of the box body;

[0009] One side of the movable block is drivingly connected to a first water baffle located on one side outside the box body through a first rack and pinion transmission mechanism, and the other side of the movable block is drivingly connected to a second water baffle located on the other side outside the box body through a second rack and pinion transmission mechanism;

[0010] The first rack and pinion transmission mechanism includes a first fixing block located on one side of the upper part of the movable block and a first rack fixed to the lower surface of the first fixing block, and the tooth surface of the first rack is arranged downward;

[0011] The second rack and pinion transmission mechanism includes a second fixing block located on the other side of the lower part of the movable block and a second rack fixed to the lower surface of the second fixing block, and the tooth surface of the second rack is arranged upward;

[0012] An impact plate is arranged in front of the box body and extends into the box body through a connecting shaft and is fixedly connected to the movable block;

[0013] When the water flow is relatively rapid, the impact plate is pressed to overcome the elastic force of the elastic unit to drive the movable block to slide in the box body along the linear guiding unit, and the water-facing angles of the two water baffles located on both sides of the box body are driven to change in opposite directions through the two rack and pinion transmission mechanisms.

[0014] As a preferred embodiment of the present invention: A support assembly is arranged between the mounting plate and the box body, including:

[0015] A fixed ring, the inside of which is provided with a bearing and is rotationally connected to the rotating shaft, and the outer wall of which is fixedly connected to the mounting plate through a support rod.

[0016] As a preferred embodiment of the present invention: A round rod is fixedly arranged between the water baffle and the box body, an auxiliary plate is arranged at one end of the water baffle away from the round rod, a cavity is formed inside one end of the water baffle away from the round rod, one end of the auxiliary plate is slidably arranged inside the cavity and is fixedly connected with a limiting block, a first elastic unit is fixedly connected between the limiting block and the inner wall of the cavity, the other end of the auxiliary plate penetrates through the water baffle, and when the water-facing angle of the water baffle increases under the impact of water flow, it drives the box body to rotate around the rotating shaft, and the auxiliary plate arranged inside the water baffle drives the limiting block to move outward in the cavity and stretch the first elastic unit.

[0017] As a preferred embodiment of the present invention: The linear guiding unit is a guiding rod, and the guiding rod penetrates through the movable block and is fixedly connected to the inner wall of the box body.

[0018] As a preferred embodiment of the present invention: The guiding rod is slidably connected to the movable block, and a second elastic unit is sleeved on the outer surface of the guiding rod, one end of the second elastic unit is fixedly connected to the movable block, and the other end is fixedly connected to the inner wall of the box body.

[0019] As a preferred embodiment of the present invention: The elastic unit is a spring.

[0020] As a preferred embodiment of the present invention: The power generation assembly includes a generator and a connecting shaft. A plurality of connecting rods are fixedly connected to the outer surface of the generator. One end of the connecting rod away from the generator is fixedly connected to the inner wall of the housing. One end of the connecting shaft is fixedly connected to the output end of the generator, and the other end of the connecting shaft is fixedly connected to a water turbine.

[0021] As a preferred embodiment of the present invention: A plurality of protrusions are fixedly connected to both the upper and lower sides of the water baffle. Flow guiding plates are fixedly connected to both the front and rear sides of the water baffle, and the cross-section of the flow guiding plate is triangular.

[0022] As a preferred embodiment of the present invention: The impact plate is of a conical structure.

[0023] On the other hand, a working method for a water guiding plate device of an ocean energy generator is provided, including the following steps

[0024] S1. When the water flow is relatively slow, the water baffle is in a horizontal state with the seawater flow direction, reducing the flow resistance between the water baffle and the seawater.

[0025] S2. When the water flow is relatively fast, the impact plate is pushed to move backward against the elastic force of the elastic unit. The impact plate drives the ejector rod to move, and the ejector rod drives the movable block to slide in the box body and compress the elastic unit. The movable block drives the rack on the fixed block to move. Since the rack is meshed with the gear, at this time, the rack drives the water baffle fixedly connected to the round rod to rotate, increasing the water-facing angle of the water baffle to block the seawater.

[0026] S3. The directions in which the two water baffles increase the water-facing angle are opposite, so when impacted by the water flow, the water baffles rotate, which can evenly reduce the water flow velocity passing through the water baffles.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. When the water flow is slow, the water baffle is in a horizontal state with the seawater flow direction. The guide plate with a triangular cross-section can effectively reduce the flow resistance between the water baffle and the seawater. When the water flow is rapid, it will push the impact plate to move backward against the elastic force of the second spring. During the movement of the impact plate, it can drive the ejector rod, movable block, and rack to move. Since the rack is meshed with the gear, at this time, the rack can drive the round rod to rotate during the movement. During the rotation of the round rod, it can drive the water baffle to rotate. At this time, the water-facing angle of the water baffle increases to block the seawater. At the same time, multiple protrusions on the water baffle are used to slow down the flow rate of the seawater, thereby avoiding the problem that a relatively fast speed may increase the pressure on the blades, causing the water turbine to operate overload under the long-term impact of the water flow and reducing the service life of the generator;

[0029] 2. When the water-facing angle of the water baffle of the present invention increases, it will drive the box body to rotate around the rotating shaft. At this time, the auxiliary plate arranged inside the water baffle overcomes the pulling force of the first spring under the action of centrifugal force, and the auxiliary plate drives the limit block to move outward in the cavity and stretch the first spring. As the rotation speed of the water baffle further increases, the centrifugal force received by the auxiliary plate further increases, so that the auxiliary plate extends out of the water baffle to better block the flow rate of the seawater, reducing the impact force of the water flow on the water turbine and greatly improving the service life of the water turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0031] Figure 2 is a schematic top-sectional structure diagram of the present invention;

[0032] Figure 3 is a schematic structure diagram of the support assembly of the present invention;

[0033] Figure 4 is a schematic right-sectional structure diagram of the box body of the present invention;

[0034] Figure 5 is a schematic internal structure diagram of the box body of the present invention;

[0035] Figure 6 is the present invention Figure 5 The enlarged structure diagram at A in;

[0036] Figure 7 is a schematic structure diagram of the water baffle assembly of the present invention;

[0037] Figure 8 is a schematic sectional structure diagram of the water baffle assembly of the present invention;

[0038] Figure 9 is a schematic structure diagram of the movable block of the present invention.

[0039] In the figure: 1, shell; 2, water guide plate; 3, power generation assembly; 4, mounting plate; 5, support assembly; 6, rotating shaft; 7, box; 8, water retaining assembly; 9, adjustment assembly; 301, generator; 302, connecting shaft; 303, connecting rod; 304, turbine; 501, fixing ring; 502, support rod; 801, round rod; 802, water retaining plate; 803, gear; 804, auxiliary plate; 805, cavity; 806, limit block; 807, first spring; 808, protrusion; 809, guide plate; 901, impact plate; 902, top rod; 903, movable block; 904, fixed block; 905, rack; 906, guide rod; 907, second spring. DETAILED DESCRIPTION

[0040] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0041] The present invention provides a water guide plate device for an ocean energy generator, comprising a shell, a water guide plate, and a power generation assembly, wherein the shell is open front and back along the water flow direction, and the water guide plate and the power generation assembly are sequentially arranged in the shell along the water flow direction, and is characterized in that it also comprises: a water retaining assembly arranged inside the shell, wherein the water retaining assembly is arranged in front of the water guide plate along the water flow direction, and is used to reduce the impact force of the water flow on the rear end power generation assembly when the water flow is relatively fast, and comprises:

[0042] A mounting plate, arranged in front of the water guide plate and fixed on the inner wall of the shell;

[0043] The box body is rotatably connected to the mounting plate via a rotating shaft and is arranged in front of the mounting plate;

[0044] A linear guide unit is arranged inside the box along the direction of water flow, a movable block is slidably arranged on the linear guide unit, and an elastic unit is arranged between the movable block and the inner wall of the box; the linear guide unit is a guide rod, two of which are fixedly arranged on the upper and lower sides of the back inner wall of the box, and the front of the guide rod passes through the movable block and is fixedly connected to the front inner wall of the box. The guide rod is slidably connected to the movable block, the elastic unit is a spring, and a second spring is sleeved on the outer surface of the guide rod, one end of the second spring is fixedly connected to the movable block, and the other end of the second spring is fixedly connected to the back inner wall of the box.

[0045] One side of the movable block is connected to the first water baffle plate located on one side outside the box body through a first rack and pinion transmission mechanism, and the other side of the movable block is connected to the second water baffle plate located on the other side outside the box body through a second rack and pinion transmission mechanism;

[0046] The first rack and pinion transmission mechanism includes a first fixed block located on one side of the upper part of the movable block, and a first rack fixed to the lower surface of the first fixed block. The tooth surface of the first rack is arranged downward.

[0047] The second rack and pinion transmission mechanism includes a second fixed block located on the other side of the lower part of the movable block, and a second rack fixed to the lower surface of the second fixed block. The tooth surface of the second rack is arranged upward.

[0048] An impact plate is arranged in front of the box body, and extends into the box body through a connecting shaft and is fixedly connected to the movable block.

[0049] When the water flow is relatively rapid, the impact plate is pressed to overcome the elastic force of the elastic unit, driving the movable block to slide in the box body along the linear guiding unit, and driving the water-facing angles of the two water baffle plates located on both sides of the box body to change in opposite directions through the two rack and pinion transmission mechanisms.

[0050] A round rod is fixedly arranged between the water baffle plate and the box body. An auxiliary plate is arranged at one end of the water baffle plate far from the round rod. A cavity is formed inside the end of the water baffle plate far from the round rod. One end of the auxiliary plate is slidably arranged inside the cavity and fixedly connected with a limiting block. A first spring is fixedly connected between the limiting block and the inner wall of the cavity. The other end of the auxiliary plate penetrates through the water baffle plate. When the water-facing angle of the water baffle plate increases under the impact of water flow, it drives the box body to rotate around the rotating shaft, and the auxiliary plate arranged inside the water baffle plate drives the limiting block to move outward in the cavity and stretch the first spring.

[0051] Embodiment 1

[0052] Such as Figure 1 、 Figure 2 A water guide plate device for a marine energy generator shown in the figure includes a housing 1 and two water guide plates 2 for adjusting the water flow direction. The two water guide plates 2 are fixedly connected to the inner walls on the left and right sides of the housing 1. The water guide plates 2 guide the water flow. A power generation assembly 3 is arranged behind the water guide plates 2. An installation plate 4 is arranged in front of the water guide plates 2. A rotating shaft 6 is rotatably connected to the front surface of the installation plate 4 through a support assembly 5. A box body 7 is fixedly connected to the front surface of the rotating shaft 6. Water baffle assemblies 8 are arranged on both the left and right sides of the box body 7. An adjusting assembly 9 is arranged on the front surface of the box body 7. The adjusting assembly 9 is used to drive the water baffle assembly 8 to adjust the angle.

[0053] Among them, the power generation component 3 includes a generator 301 and a connecting shaft 302. A plurality of connecting rods 303 are fixedly connected to the outer surface of the generator 301. One end of the connecting rod 303 far from the generator 301 is fixedly connected to the inner wall of the housing 1. One end of the connecting shaft 302 is fixedly connected to the output end of the generator 301, and the other end of the connecting shaft 302 is fixedly connected to a water turbine 304. The water flow impacts the water turbine 304 to drive the connecting shaft 302 to rotate. During the rotation of the connecting shaft 302, the generator 301 is driven to generate electricity;

[0054] As Figure 3 , Figure 5 shown, the top end of the mounting plate 4 is fixedly connected to the inner top wall of the housing 1, and the bottom end of the mounting plate 4 is fixedly connected to the inner bottom wall of the housing 1. The mounting plate 4 is fixedly connected inside the housing 1, which is convenient for installing and fixing the rotating shaft 6. The support assembly 5 includes a fixing ring 501 and two support rods 502. The two support rods 502 are respectively fixedly connected to the upper and lower sides of the fixing ring 501. One end of the support rod 502 far from the fixing ring 501 is fixedly connected to the mounting plate 4. The back of the rotating shaft 6 penetrates through the fixing ring 501 and is rotatably connected to the mounting plate 4 through a bearing. The rotating shaft 6 is rotatably connected to the fixing ring 501 through a bearing. The two support rods 502 support the fixing ring 501, enabling the box body 7 to rotate around the rotating shaft 6 better;

[0055] Among them, as Figure 7 shown, the water blocking assembly 8 includes a round rod 801 and a water blocking plate 802. One end of the round rod 801 is located inside the box body 7 and is fixedly connected to a gear 803. The round rod 801 is rotatably connected to the box body 7 through a bearing. The other end of the round rod 801 is fixedly connected to the water blocking plate 802. During the rotation of the round rod 801, the water blocking plate 802 can be driven to rotate. At this time, the water-facing angle of the water blocking plate 802 increases to block the seawater. At the same time, multiple protrusions 808 on the water blocking plate 802 are used to slow down the flow rate of the seawater, thereby avoiding the possible increase in the pressure on the blades due to a relatively fast speed. An auxiliary plate 804 is provided at the end of the water blocking plate 802 far from the round rod 801. As Figure 8As shown in the figure, a cavity 805 is formed inside one end of the water baffle 802 away from the round rod 801. One end of the auxiliary plate 804 is located inside the cavity 805 and fixedly connected with a limiting block 806. A first spring 807 is fixedly connected between the limiting block 806 and the inner wall of the cavity 805. The other end of the auxiliary plate 804 penetrates through the water baffle 802, and the auxiliary plate 804 is slidably connected with the water baffle 802. A cavity 805 is formed inside one end of the water baffle 802 away from the round rod 801. One end of the auxiliary plate 804 is located inside the cavity 805 and fixedly connected with a limiting block 806. A first spring 807 is fixedly connected between the limiting block 806 and the inner wall of the cavity 805. The other end of the auxiliary plate 804 penetrates through the water baffle 802, and the auxiliary plate 804 is slidably connected with the water baffle 802. The auxiliary plate 804 inside the water baffle 802 overcomes the pulling force of the first spring 807 under the action of centrifugal force, and the auxiliary plate 804 drives the limiting block 806 to move outwards inside the cavity 805 and stretch the first spring 807. As the rotation speed of the water baffle 802 further increases, the centrifugal force received by the auxiliary plate 804 further increases, so that the auxiliary plate 804 extends out of the water baffle 802 to better block the flow rate of seawater. A plurality of protrusions 808 are fixedly connected to both the upper and lower sides of the water baffle 802. Flow guide plates 809 are fixedly connected to both the front and rear sides of the water baffle 802. The cross-section of the flow guide plate 809 is triangular. When the water flow is slow, the water baffle 802 is in a horizontal state with the seawater flow direction. The triangular cross-section flow guide plate 809 can effectively reduce the flow resistance between the water baffle 802 and the seawater;

[0056] As Figure 4 , Figure 6 , Figure 9 shown, the adjusting assembly 9 includes an impact plate 901, a push rod 902 and a movable block 903. The movable block 903 is slidably connected inside the box body 7. One end of the push rod 902 is located inside the box body 7 and fixedly connected with the movable block 903. The other end of the push rod 902 penetrates through the front surface of the box body 7 and is fixedly connected with the impact plate 901. The push rod 902 is slidably connected with the box body 7. The impact plate 901 is of a conical structure. As Figure 6As shown in the figure, fixed blocks 904 are fixedly connected to both the left and right sides of the movable block 903. A rack 905 is fixedly connected to one side of the fixed block 904. The rack 905 is meshed with the gear 803. Guide rods 906 are fixedly connected to both the upper and lower sides of the inner wall of the back surface of the box body 7. The front surface of the guide rod 906 penetrates through the movable block 903 and is fixedly connected to the inner wall of the front surface of the box body 7. The guide rod 906 is slidably connected to the movable block 903. The guide rod 906 enables the movable block 903 to move more stably, avoiding the phenomenon of tilting and jamming of the movable block 903. A second spring 907 is sleeved on the outer surface of the guide rod 906. One end of the second spring 907 is fixedly connected to the movable block 903, and the other end of the second spring 907 is fixedly connected to the inner wall of the back surface of the box body 7. When the water flow is relatively rapid, it will push the impact plate 901 to move backward against the elastic force of the second spring 907. During the movement of the impact plate 901, it can drive the ejector rod 902 to move. During the movement of the ejector rod 902, it can drive the movable block 903 to slide on the guide rod 906 and compress the second spring 907. During the movement of the movable block 903, it can drive the fixed block 904 to move. During the movement of the fixed block 904, it can drive the rack 905 to move. During the movement of the rack 905, it can drive the gear 803 to rotate.

[0057] Working method of the water guide plate device of the ocean energy generator:

[0058] S1. When the water flow is relatively slow, the water baffle 802 is in a horizontal state with the seawater flow direction. The triangular cross-section guide plate 809 can effectively reduce the flow resistance between the water baffle 802 and the seawater.

[0059] S2. When the water flow is relatively rapid, it will push the impact plate 901 to move backward against the elastic force of the second spring 907. During the movement of the impact plate 901, it can drive the ejector rod 902 to move. During the movement of the ejector rod 902, it can drive the movable block 903 to slide on the guide rod 906 and compress the second spring 907. During the movement of the movable block 903, it can drive the fixed block 904 to move. During the movement of the fixed block 904, it can drive the rack 905 to move. Since the rack 905 is meshed with the gear 803, at this time, during the movement of the rack 905, it can drive the round rod 801 to rotate. During the rotation of the round rod 801, it can drive the water baffle 802 to rotate. At this time, the water-facing angle of the water baffle 802 increases to block the seawater. At the same time, multiple protrusions 808 on the water baffle 802 are used to slow down the flow rate of the seawater, thereby avoiding the problem that the relatively fast water flow speed may increase the pressure on the blades, causing the water turbine 304 to operate overloaded under the long-term impact of the water flow and reducing the service life of the generator 301.

[0060] S3. Since the directions in which the two water baffle plates 802 increase the water-facing angle are opposite, when receiving the impact of the water flow, the increase in the water-facing angle of the water baffle plate 802 causes the water baffle plate 802 to drive the box body 7 to rotate around the rotating shaft 6. At this time, the auxiliary plate 804 provided inside the water baffle plate 802 overcomes the pulling force of the first spring 807 under the action of centrifugal force, and the auxiliary plate 804 drives the limit block 806 to move outward in the cavity 805 and stretch the first spring 807. As the rotational speed of the water baffle plate 802 further increases, the centrifugal force received by the auxiliary plate 804 further increases, so that the auxiliary plate 804 extends out of the water baffle plate 802 to better block the flow rate of the seawater, reducing the impact force of the water flow on the water turbine 304 and greatly increasing the service life of the water turbine 304.

[0061] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A water guide plate device for a marine energy generator, comprising a housing, a water guide plate, and a power generation assembly. The housing is open at the front and rear in the water flow direction. The water guide plate and the power generation assembly are arranged in the housing in sequence along the water flow direction. It is characterized in that, Also includes: A water retaining assembly is arranged inside the housing, and the water retaining assembly is arranged in front of the water guide plate along the water flow direction, and is used to reduce the impact force of the water flow on the rear-end power generation assembly when the water flow is fast, and includes: A mounting plate, arranged in front of the water guide plate and fixed on the inner wall of the shell; The box body is rotatably connected to the mounting plate via a rotating shaft and is arranged in front of the mounting plate; A linear guide unit is arranged inside the box along the water flow direction, a movable block is slidably arranged on the linear guide unit, and an elastic unit is arranged between the movable block and the inner wall of the box; One side of the movable block is connected to the first water baffle plate located on one side outside the box body through a first rack and pinion transmission mechanism, and the other side of the movable block is connected to the second water baffle plate located on the other side outside the box body through a second rack and pinion transmission mechanism; The first rack and pinion transmission mechanism comprises a first fixed block located at one side of the upper portion of the movable block, and a first rack fixed to the lower surface of the first fixed block, wherein the tooth surface of the first rack is arranged downward; The second rack and pinion transmission mechanism comprises a second fixed block located at the other side of the lower part of the movable block, and a second rack fixed to the lower surface of the second fixed block, wherein the tooth surface of the second rack is arranged upward; An impact plate is arranged in front of the box body, extends into the box body through a push rod and is fixedly connected to the movable block; When the water flow is fast, the impact plate is compressed to overcome the elastic force of the elastic unit to drive the movable block to slide along the linear guide unit in the box body, and the water-facing angles of the two water baffles located on both sides of the box body are driven to change in opposite directions through the two rack and pinion transmission mechanisms.

2. The water guide plate device for a marine energy generator according to claim 1, characterized in that: A support assembly is provided between the mounting plate and the box body, including: A fixed ring has a bearing disposed inside thereof and is rotatably connected to the rotating shaft, and an outer wall thereof is fixedly connected to the mounting plate via a support rod.

3. The water guide plate device for a marine energy generator according to claim 1, characterized in that, A round rod is fixedly arranged between the water baffle and the box body, an auxiliary plate is arranged at one end of the water baffle away from the round rod, a cavity is opened inside the end of the water baffle away from the round rod, one end of the auxiliary plate is slidably arranged inside the cavity and fixedly connected to a limiting block, a first elastic unit is fixedly connected between the limiting block and the inner wall of the cavity, the other end of the auxiliary plate passes through the water baffle, when the water-facing angle of the water baffle increases under the impact of water flow, the box body is driven to rotate around the rotating shaft, and the auxiliary plate arranged inside the water baffle drives the limiting block to move outward in the cavity and stretch the first elastic unit.

4. The water guide plate device for a marine energy generator according to claim 3, characterized in that, The linear guide unit is a guide rod, which penetrates the movable block and is fixedly connected to the inner wall of the box.

5. The water guide plate device for a marine energy generator according to claim 4, characterized in that, The guide rod is slidably connected to the movable block, a second elastic unit is sleeved on the outer surface of the guide rod, one end of the second elastic unit is fixedly connected to the movable block, and the other end is fixedly connected to the inner wall of the box body.

6. The water guide plate device for a marine energy generator according to claim 1, characterized in that, The elastic unit is a spring.

7. The water guide plate device for a marine energy generator according to claim 1, characterized in that, The power generation assembly includes a generator and a connecting shaft. A plurality of connecting rods are fixedly connected to the outer surface of the generator. One end of the connecting rod away from the generator is fixedly connected to the inner wall of the shell. One end of the connecting shaft is fixedly connected to the output end of the generator, and the other end of the connecting shaft is fixedly connected to the turbine.

8. The water guide plate device for a marine energy generator according to claim 1, characterized in that, Both the upper and lower sides of the water baffle are fixedly connected with a plurality of protrusions, and both the front and rear sides of the water baffle are fixedly connected with guide plates, and the cross section of the guide plate is triangular.

9. The water guide plate device for a marine energy generator according to claim 1, characterized in that, The impact plate is of a conical structure.

10. A working method of the water guide plate device for a marine energy generator according to any one of claims 1 to 9, characterized in that, It includes the following steps: S1. When the water flow is slow, the water baffle is in a horizontal state with the seawater flow direction, reducing the flow resistance between the water baffle and the seawater; S2. When the water flow is rapid, the impact plate is pushed to move backward against the elastic force of the elastic unit. The impact plate drives the ejector rod to move, and the ejector rod drives the movable block to slide in the box body and compress the elastic unit. The movable block drives the rack on the fixed block to move. Since the rack is meshed with the gear, at this time, the rack drives the water baffle fixedly connected to the round rod to rotate, increasing the water-facing angle of the water baffle to block the seawater; S3. The directions in which the two water baffles increase the water-facing angle are opposite, so that the water baffle rotates when impacted by the water flow, and the flow velocity of the water flow passing through the water baffle can be evenly reduced.

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