A dam foundation protection device for hydropower engineering and protection method thereof

Abstract

The present invention relates to the technical field of hydropower engineering, and in particular to a dam foundation protection device for hydropower engineering and a protection method thereof, comprising a mounting plate, wherein the four corners of the front end face of the mounting plate are fixedly connected with sleeves, the inner cavity wall of the sleeve is slidably connected with a buffer rod, the buffer rod sleeve is provided with a spring, the front end face of the collection frame is fixedly connected with a second grid net, the left and right end faces of the lower side of the inner cavity wall of the collection frame are fixedly connected with a first grid net, and the left and right upper sides of the collection frame are provided with a puncturing mechanism for solid-liquid separation of garbage. The present invention can achieve an effect of automatically collecting, puncturing and squeezing garbage in water waves, discharge excess water, achieve solid-liquid separation, and also compress the volume of the garbage, so as to facilitate its subsequent collection and cleaning; it can have an efficient mitigation effect on the impact force on the dam foundation, and avoid the situation that the dam foundation is damaged by the beating of water waves.

Description

Technical Field

[0001] The invention relates to the technical field of hydropower engineering, and in particular to a dam foundation protection device for hydropower engineering and a protection method thereof. Background Art

[0002] Water conservancy and hydropower projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. Existing water conservancy and hydropower projects have been widely used and have the advantages of controlling water flow, preventing floods and waterlogging, and regulating and distributing water. With the development of society, existing water conservancy and hydropower projects have become an indispensable technology in life. In the process of hydropower project construction, it is necessary to build a dam. After the dam is built, the dam foundation bears the weight of the entire dam, but the dam foundation needs to withstand the impact of waves after construction, so a dam foundation protection device is needed to protect the dam foundation.

[0003] For example, the patent document with the publication number CN216999539U discloses a dam foundation protection device for water conservancy construction, including a mounting plate, a connecting rod fixedly connected to the front of the mounting plate, a spring arranged on the outer wall of the connecting rod, a buffer plate arranged on the front of the mounting plate, a fixed plate fixedly connected to the front of the buffer plate, a groove arranged on the front of the fixed plate, a rotating plate shaft arranged on the front of the buffer plate, a rotating plate fixedly connected to the outer wall of the rotating plate shaft, bevel gears arranged on both the left and right sides of the rotating plate shaft, and a second bevel gear arranged on the front of the buffer plate. The dam foundation protection device for water conservancy construction, through the coordinated use of connecting rods, springs, and buffer plates, when water waves impact the dam foundation, first acts on the surface of the buffer plate, and at the same time, the buffer plate is located on the connecting rod and can move on the connecting rod. Under the action of the spring on the connecting rod, the impact force brought by the water waves is buffered and weakened, solving the problem of the buffer plate being directly impacted and causing the buffer plate to be damaged.

[0004] However, the above patent documents still have the following deficiencies in practical application:

[0005] While protecting the dam foundation, it is not possible to intercept and centrally process the garbage in the waves, which makes it easy for the waves to carry the garbage to the vicinity of the dam foundation, causing more and more garbage to accumulate at the dam foundation, affecting the environment near the dam foundation. Summary of the invention

[0006] The object of the present invention is to provide a dam foundation protection device and a protection method for a hydropower project, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A dam foundation protection device for a hydropower project comprises a mounting plate, wherein the four corners of the front end face of the mounting plate are fixedly connected with sleeves, the inner cavity wall of the sleeve is slidably connected with a buffer rod, the buffer rod sleeve is provided with a spring, the front end of the spring is fixedly connected to the buffer rod, the rear end of the spring is fixedly connected to the sleeve, the front end face of the buffer rod is fixedly connected with an anti-wave plate, the front end face of the anti-wave plate is fixedly connected with a collecting frame, the front end face of the collecting frame is fixedly connected with a second grille, the left and right end faces on the lower side of the inner cavity wall of the collecting frame are fixedly connected with the first grille, and the left and right upper parts of the collecting frame are provided with piercing mechanisms for solid-liquid separation of garbage.

[0009] Preferably, the puncturing mechanism includes a sliding rod, and the sliding rods on the left and right sides are slidably connected to the collection frame. The end surfaces of the sliding rods on the left and right sides that are close to each other are fixedly connected with a drill bit, and the drill bit is provided with a raised texture. The middle part of the sliding rod is rotatably connected with an extrusion plate.

[0010] Preferably, the ends of the sliding rods on the left and right sides that are away from each other are sleeved and fixedly connected with the first gear, the first gears are meshed with each other, the end faces of the sliding rods on the left and right sides that are away from each other are rotatably connected with an L-shaped plate, and the rear end of the L-shaped plate is rotatably connected with the second bevel gear and the second gear through a pin shaft, and the sliding rods at the rear ends on the left and right sides that are away from each other are sleeved and fixedly connected with the first bevel gear, the first bevel gear and the second bevel gear are meshed with each other, and the middle parts of the left and right sides of the rear end face of the anti-wave plate are fixedly connected with the first rack, and the first rack and the second gear are meshed with each other.

[0011] Preferably, the rear end surface of the anti-wave plate is also provided with a reciprocating mechanism for driving the L-shaped plate to move.

[0012] Preferably, the reciprocating mechanism includes a rectangular plate, the front end face of the rectangular plate is fixedly connected to the anti-wave plate, the right rear end of the upper end face of the rectangular plate is fixedly connected to a motor, the output end of the motor is fixedly connected to the second connecting rod through a pin shaft, the front end of the second connecting rod is rotatably connected to the third connecting rod through a pin shaft, the front end of the third connecting rod is rotatably connected to the second rack through a pin shaft, the left and right sides of the second rack are slidably connected to the limit rod, the front end face of the limit rod is fixedly connected to the anti-wave plate, the left and right ends of the upper front side of the upper end face of the rectangular plate are rotatably connected to the fourth connecting rod and the third gear through a pin shaft, the third gear and the second rack are meshed with each other, the end of the fourth connecting rod away from the third gear is rotatably connected to the first connecting rod through a pin shaft, and the end of the first connecting rod away from the fourth connecting rod is rotatably connected to the L-shaped plate through a pin shaft.

[0013] Preferably, the mounting plate and the first grid net are also provided with a buffer mechanism for resisting wave plates.

[0014] Preferably, the buffer mechanism includes an articulated block, the upper end surface of the articulated block is fixedly connected to the first grid mesh, the lower end of the articulated block is rotatably connected to a stirring shaft, a fourth gear is sleeved and fixedly connected to the middle of the stirring shaft, and stirring plates are fixedly connected to the left and right sides of the stirring shaft.

[0015] Preferably, a third rack is fixedly connected to the middle portion of the lower side of the front end surface of the mounting plate, and the third rack is meshed with the fourth gear.

[0016] Preferably, mounting holes are provided at the four corners of the mounting plate.

[0017] A protection method for a dam foundation protection device for a hydropower project comprises the following specific steps:

[0018] S1. The mounting plate is mounted on the dam foundation using mounting holes and bolts. When water waves impact the dam foundation, the water waves will first impact the anti-wave plate, causing the anti-wave plate to move backward. The buffer rod slides inside the sleeve and recovers forward under the action of the spring to perform a primary buffer. Moreover, when the anti-wave plate moves forward and backward, the fourth gear rotates under the action of the third rack, so that the stirring shaft and the stirring plate rotate, so that the stirring plate and the water waves are stirred to offset the impact of the water waves, and a secondary buffer can be performed.

[0019] S2. When the water waves impact the anti-wave plate, the water waves fall into the collection frame, and the garbage in the water waves falls into the collection frame. The first grille and the second grille intercept the garbage. At the same time, the personnel can turn on the motor, and the motor drives the second connecting rod and the third connecting rod to rotate, so that the second rack can slide back and forth on the limit rod, so that the third gears on the left and right sides can rotate back and forth, and the fourth connecting rod and the first connecting rod can rotate back and forth, so that the L-shaped plate can slide back and forth, and under the action of the first rack, the second gear can rotate, and under the cooperation of the second bevel gear and the first bevel gear, the sliding rod can rotate;

[0020] S3, then, with the cooperation of the plurality of first gears, the plurality of slide bars are rotated simultaneously, so that the drill bit can be rotated, and the extrusion plates on the left and right sides are moved closer to or farther away from each other, while the drill bit is also rotating and moving closer to or farther away from each other. Since the drill bits on the left and right sides are staggered, the drill bits on the left and right sides will not touch each other, and when the drill bit is about to touch the opposite extrusion plate, it will start to move away, so that the garbage can be punctured and squeezed, so that the water in the garbage can be completely discharged, and the volume of the garbage can be compressed;

[0021] S4. Personnel can collect and clean the compressed garbage.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In the present invention, when water waves impact the anti-wave plate, the water waves fall into the collection frame, and the garbage in the water waves falls into the collection frame. The first grille net and the second grille net intercept the garbage. At the same time, the personnel can turn on the motor, and the motor drives the second connecting rod and the third connecting rod to rotate, so that the second rack can slide back and forth on the limit rod, and the third gear on the left and right sides can be reciprocated, and the fourth connecting rod and the first connecting rod can be reciprocated, so that the L-shaped plate can slide back and forth, and under the action of the first rack, the second gear can be rotated, and the sliding rod can be rotated under the cooperation of the second bevel gear and the first bevel gear, and then under the cooperation of the plurality of first gears, When multiple slide bars rotate simultaneously, the drill bit can be rotated, so that the extrusion plates on the left and right sides are close to or away from each other, and the drill bit is also rotating and close to or away from each other. Since the drill bits on the left and right sides are staggered, the drill bits on the left and right sides will not touch each other, and when the drill bit is about to touch the opposite extrusion plate, it will start to move away, so as to puncture and squeeze the garbage, so that the water in the garbage is completely discharged, and the volume of the garbage is compressed, so that the garbage in the water waves can be automatically collected and punctured and squeezed, and then the excess water can be discharged to achieve solid-liquid separation. At the same time, the volume of the garbage is also compressed, which is convenient for subsequent collection and cleaning.

[0024] 2. In the present invention, when water waves impact the dam foundation, the water waves will first impact the anti-wave plate, causing the anti-wave plate to tend to move backward, and the buffer rod slides inside the sleeve and recovers forward under the action of the spring to perform a buffer. Moreover, when the anti-wave plate moves forward and backward, the fourth gear is rotated under the action of the third rack, so that the stirring shaft and the stirring plate can be rotated, so that the stirring plate and the water waves are stirred to offset the impact of the water waves, and a secondary buffer can be performed, thereby having an efficient mitigation effect on the impact force on the dam foundation, thereby avoiding the dam foundation from being damaged by the beating of water waves. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the front end section of the collecting frame of the present invention;

[0026] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle A area;

[0027] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0028] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of the middle B area;

[0029] Figure 5 For the present invention Figure 3 Schematic diagram of the enlarged structure of the middle C area;

[0030] Figure 6 It is a bottom-up three-dimensional structural schematic diagram of the present invention;

[0031] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of the middle D area;

[0032] Figure 8 It is a schematic diagram of the complete three-dimensional structure of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] In the figure: 1. mounting plate; 2. sleeve; 3. motor; 4. mounting hole; 5. anti-wave plate; 6. collecting frame; 7. first grille; 8. drill bit; 9. slide bar; 10. extrusion plate; 11. first gear; 12. L-shaped plate; 13. first bevel gear; 14. first rack; 15. second gear; 16. second bevel gear; 17. first connecting rod; 18. rectangular plate; 19. second connecting rod; 20. third connecting rod; 21. limit rod; 22. second rack; 23. third gear; 24. fourth connecting rod; 25. buffer rod; 26. spring; 27. hinge block; 28. third rack; 29. ​​fourth gear; 30. stirring shaft; 31. stirring plate; 32. second grille. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] See also Figure 1-8 , the present invention provides a technical solution:

[0040] A dam foundation protection device for a hydropower project comprises a mounting plate 1, wherein the four corners of the front end face of the mounting plate 1 are fixedly connected with sleeves 2, a buffer rod 25 is slidably connected with the inner cavity wall of the sleeve 2, the buffer rod 25 is sleeved with a spring 26, the front end of the spring 26 is fixedly connected to the buffer rod 25, the rear end of the spring 26 is fixedly connected to the sleeve 2, the front end face of the buffer rod 25 is fixedly connected with an anti-wave plate 5, the front end face of the anti-wave plate 5 is fixedly connected with a collecting frame 6, the front end face of the collecting frame 6 is fixedly connected with a second grille 32, the left and right end faces of the lower side of the inner cavity wall of the collecting frame 6 are fixedly connected with a first grille 7, and the left and right sides of the collecting frame 6 are provided with piercing mechanisms for solid-liquid separation of garbage.

[0041] In this embodiment, the puncturing mechanism includes a slide bar 9, and the slide bars 9 on the left and right sides are slidably connected to the collection frame 6. The end faces of the slide bars 9 on the left and right sides are fixedly connected with a drill bit 8, and a convex texture is provided on the drill bit 8. The middle part of the slide bar 9 is rotatably connected with an extrusion plate 10; the ends of the slide bars 9 on the left and right sides that are away from each other are sleeved and fixedly connected with a first gear 11, and the first gears 11 are meshed with each other. The end faces of the slide bars 9 on the left and right sides that are away from each other are rotatably connected with an L-shaped plate 12, and the rear end of the L-shaped plate 12 is rotatably connected with a second bevel gear 16 and a second gear 15 through a pin shaft. The rear end slide bars 9 on the left and right sides are sleeved and fixedly connected with a first bevel gear 13 at one end away from each other, and the first bevel gear 13 and the second bevel gear 16 are meshed with each other. The middle parts of the left and right sides of the rear end face of the anti-wave plate 5 are fixedly connected with a first rack 14, and the first rack 14 and the second gear 15 are meshed with each other; the rear end face of the anti-wave plate 5 is also provided with a gear for driving the L A reciprocating mechanism for moving the profile plate 12; the reciprocating mechanism comprises a rectangular plate 18, the front end face of the rectangular plate 18 is fixedly connected to the anti-wave plate 5, the rear end of the right side of the upper end face of the rectangular plate 18 is fixedly connected to the motor 3, the output end of the motor 3 is fixedly connected to the second connecting rod 19 through a pin shaft, the front end of the second connecting rod 19 is rotatably connected to the third connecting rod 20 through a pin shaft, the front end of the third connecting rod 20 is rotatably connected to the second rack 22 through a pin shaft, the left and right sides of the second rack 22 are both slidably connected to the limit rod 21, the front end face of the limit rod 21 is fixedly connected to the anti-wave plate 5, the left and right ends of the front side of the upper end face of the rectangular plate 18 are rotatably connected to the fourth connecting rod 24 and the third gear 23 through a pin shaft, the third gear 23 is meshed with the second rack 22, the end of the fourth connecting rod 24 away from the third gear 23 is rotatably connected to the first connecting rod 17 through a pin shaft, and the end of the first connecting rod 17 away from the fourth connecting rod 24 is rotatably connected to the L-shaped plate 12 through a pin shaft;When the water waves impact the anti-wave plate 5, the water waves fall into the collecting frame 6, and the garbage in the water waves falls into the collecting frame 6. The first grille net 7 and the second grille net 32 ​​intercept the garbage. At the same time, the personnel can turn on the motor 3, and the motor 3 drives the second connecting rod 19 and the third connecting rod 20 to rotate, so that the second rack 22 can slide back and forth on the limit rod 21, so that the third gear 23 on the left and right sides can rotate back and forth, and the fourth connecting rod 24 and the first connecting rod 17 can rotate back and forth, so that the L-shaped plate 12 can slide back and forth, and under the action of the first rack 14, the second gear 15 can be rotated, and the sliding rod 9 can be rotated under the cooperation of the second bevel gear 16 and the first bevel gear 13, and then the first gear 23 and the first bevel gear 16 can be rotated. With the cooperation of the wheel 11, the multiple slide bars 9 rotate simultaneously, which can make the drill bit 8 rotate, and the extrusion plates 10 on the left and right sides approach or move away from each other. At the same time, the drill bit 8 also rotates and approaches or moves away from each other. Since the drill bits 8 on the left and right sides are staggered, the drill bits 8 on the left and right sides will not contact each other, and when the drill bit 8 is about to contact the opposite extrusion plate 10, it will start to move away, so that the garbage can be punctured and squeezed, so that the water in the garbage can be completely discharged, and the volume of the garbage can be compressed, so that the garbage in the water waves can be automatically collected and punctured and squeezed, and then the excess water can be discharged to achieve solid-liquid separation, and the volume of the garbage can be compressed, which is convenient for subsequent collection and cleaning. ;

[0042] In this embodiment, a buffer mechanism for resisting the wave plate 5 is also provided on the mounting plate 1 and the first grid net 7; the buffer mechanism includes a hinge block 27, the upper end face of the hinge block 27 is fixedly connected to the first grid net 7, the lower end of the hinge block 27 is rotatably connected to the stirring shaft 30, the middle part of the stirring shaft 30 is sleeved and fixedly connected to the fourth gear 29, and the left and right sides of the stirring shaft 30 are fixedly connected to the stirring plate 31; the middle part of the lower side of the front end face of the mounting plate 1 is fixedly connected to the third rack 28, and the third rack 28 and the fourth gear 29 are meshed with each other; when the water waves impact the dam foundation, the water waves will first resist the wave The plate 5 causes an impact, so that the anti-wave plate 5 tends to move backward, the buffer rod 25 slides inside the sleeve 2, and recovers forward under the action of the spring 26, and performs a buffer. Moreover, when the anti-wave plate 5 moves back and forth, the fourth gear 29 is rotated under the action of the third rack 28, so that the stirring shaft 30 and the stirring plate 31 can be rotated, so that the stirring plate 31 stirs with the water waves and offsets the impact of the water waves, so as to perform a secondary buffer, thereby having an efficient mitigation effect on the impact force on the dam foundation, thereby avoiding the damage of the dam foundation under the beating of the water waves.

[0043] A protection method for a dam foundation protection device for a hydropower project comprises the following specific steps:

[0044] S1. The mounting plate 1 is mounted on the dam foundation using the mounting holes 4 and bolts. When water waves impact the dam foundation, the water waves will first impact the anti-wave plate 5, causing the anti-wave plate 5 to move backward. The buffer rod 25 slides inside the sleeve 2 and recovers forward under the action of the spring 26 to perform a primary buffer. Moreover, when the anti-wave plate 5 moves forward and backward, the fourth gear 29 is rotated under the action of the third rack 28, so that the stirring shaft 30 and the stirring plate 31 can be rotated, so that the stirring plate 31 and the water waves are stirred to offset the impact of the water waves, and a secondary buffer can be performed.

[0045] S2. When the water waves impact the anti-wave plate 5, the water waves fall into the collection frame 6, and the garbage in the water waves falls into the collection frame 6. The first grille net 7 and the second grille net 32 ​​intercept the garbage. At the same time, the personnel can turn on the motor 3, and the motor 3 drives the second connecting rod 19 and the third connecting rod 20 to rotate, so that the second rack 22 slides back and forth on the limit rod 21, so that the third gear 23 on the left and right sides rotates back and forth, and the fourth connecting rod 24 and the first connecting rod 17 rotates back and forth, so that the L-shaped plate 12 slides back and forth, and under the action of the first rack 14, the second gear 15 rotates, and the slide bar 9 rotates under the cooperation of the second bevel gear 16 and the first bevel gear 13;

[0046] S3, then, with the cooperation of the plurality of first gears 11, the plurality of slide bars 9 are rotated simultaneously, so that the drill bit 8 can be rotated, and the extrusion plates 10 on the left and right sides are moved closer to or farther away from each other, while the drill bit 8 is also rotating and moving closer to or farther away from each other. Since the drill bits 8 on the left and right sides are staggered, the drill bits 8 on the left and right sides will not contact each other, and when the drill bits 8 are about to contact the opposite extrusion plates 10, they will start to move away, so that the garbage can be punctured and squeezed, so that the water in the garbage can be completely discharged, and the volume of the garbage can be compressed;

[0047] S4. Personnel can collect and clean the compressed garbage.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dam foundation protection device for a hydropower project, comprising a mounting plate (1), characterized in that: The four corners of the front end surface of the mounting plate (1) are fixedly connected to sleeves (2), the inner cavity wall of the sleeve (2) is slidably connected to a buffer rod (25), the buffer rod (25) is sleeved with a spring (26), the front end of the spring (26) is fixedly connected to the buffer rod (25), the rear end of the spring (26) is fixedly connected to the sleeve (2), the front end surface of the buffer rod (25) is fixedly connected to an anti-wave plate (5), the front end surface of the anti-wave plate (5) is fixedly connected to a collection frame (6), the front end surface of the collection frame (6) is fixedly connected to a second grille (32), the left and right end surfaces of the lower side of the inner cavity wall of the collection frame (6) are fixedly connected to the first grille (7), and the left and right upper surfaces of the collection frame (6) are provided with a piercing mechanism for solid-liquid separation of garbage; The puncturing mechanism comprises a slide rod (9), the slide rods (9) on the left and right sides are both slidably connected to the collection frame (6), the end surfaces of the slide rods (9) on the left and right sides close to each other are fixedly connected to a drill bit (8), the drill bit (8) is provided with a raised texture, and the middle part of the slide rod (9) is rotatably connected to an extrusion plate (10); The ends of the sliding rods (9) on the left and right sides that are away from each other are sleeved and fixedly connected with a first gear (11), and the first gears (11) are meshed with each other. The end surfaces of the sliding rods (9) on the left and right sides that are away from each other are rotatably connected with an L-shaped plate (12), and the rear end of the L-shaped plate (12) is rotatably connected with a second bevel gear (16) and a second gear (15) through a pin shaft. The ends of the sliding rods (9) on the left and right sides that are away from each other are sleeved and fixedly connected with a first bevel gear (13), and the first bevel gear (13) and the second bevel gear (16) are meshed with each other. The middle parts of the left and right sides of the rear end surface of the anti-wave plate (5) are fixedly connected with first racks (14), and the first racks (14) and the second gear (15) are meshed with each other. The rear end surface of the anti-wave plate (5) is also provided with a reciprocating mechanism for driving the L-shaped plate (12) to move; The reciprocating mechanism comprises a rectangular plate (18), the front end surface of the rectangular plate (18) is fixedly connected to the anti-wave plate (5), the right rear end of the upper end surface of the rectangular plate (18) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to a second connecting rod (19) via a pin shaft, the front end of the second connecting rod (19) is rotatably connected to a third connecting rod (20) via a pin shaft, the front end of the third connecting rod (20) is rotatably connected to a second rack (22) via a pin shaft, and the left and right sides of the second rack (22) are both slidably connected to limit rods ( 21), the front end face of the limit rod (21) is fixedly connected to the anti-wave plate (5), the left and right ends of the front side of the upper end face of the rectangular plate (18) are rotatably connected to a fourth connecting rod (24) and a third gear (23) through a pin shaft, the third gear (23) and the second rack (22) are meshed with each other, the end of the fourth connecting rod (24) away from the third gear (23) is rotatably connected to the first connecting rod (17) through a pin shaft, and the end of the first connecting rod (17) away from the fourth connecting rod (24) is rotatably connected to the L-shaped plate (12) through a pin shaft.

2. A dam foundation protection device for hydropower engineering according to claim 1, characterized in that: The mounting plate (1) and the first grille net (7) are also provided with a buffer mechanism for resisting the wave plate (5).

3. A dam foundation protection device for a hydropower project according to claim 2, characterized in that: The buffer mechanism comprises an articulated block (27), the upper end surface of the articulated block (27) being fixedly connected to the first grille (7), the lower end of the articulated block (27) being rotatably connected to a stirring shaft (30), a fourth gear (29) being sleeved and fixedly connected to the middle of the stirring shaft (30), and stirring plates (31) being fixedly connected to the left and right sides of the stirring shaft (30).

4. A dam foundation protection device for hydropower engineering according to claim 2, characterized in that: A third rack (28) is fixedly connected to the middle portion of the lower side of the front end surface of the mounting plate (1), and the third rack (28) is meshed with a fourth gear (29).

5. The dam foundation protection device for hydropower engineering according to claim 1 is characterized by: The four corners of the mounting plate (1) are each provided with mounting holes (4).

6. A protection method for a dam foundation protection device for a hydropower project according to any one of claims 1 to 5, characterized in that: The specific steps include: S1. The mounting plate (1) is mounted on the dam foundation using the mounting holes (4) and bolts. When water waves impact the dam foundation, the water waves will first impact the anti-wave plate (5), causing the anti-wave plate (5) to tend to move backward. The buffer rod (25) slides inside the sleeve (2) and recovers forward under the action of the spring (26), thereby performing a primary buffer. Furthermore, when the anti-wave plate (5) moves forward and backward, the fourth gear (29) is rotated under the action of the third rack (28), thereby rotating the stirring shaft (30) and the stirring plate (31), causing the stirring plate (31) to stir with the water waves and offset the impact of the water waves, thereby performing a secondary buffer. S2. When the water waves impact the anti-wave plate (5), the water waves fall into the collection frame (6), and the garbage in the water waves falls into the collection frame (6). The first grille net (7) and the second grille net (32) intercept the garbage. At the same time, the personnel can turn on the motor (3), and the motor (3) drives the second connecting rod (19) and the third connecting rod (20) to rotate, so that the second rack (22) slides back and forth on the limit rod (21), so that the third gear (23) on the left and right sides rotates back and forth, and the fourth connecting rod (24) and the first connecting rod (17) rotate back and forth, so that the L-shaped plate (12) slides back and forth, and under the action of the first rack (14), the second gear (15) rotates, and the sliding rod (9) rotates under the cooperation of the second bevel gear (16) and the first bevel gear (13); S3, then, with the cooperation of the plurality of first gears (11), the plurality of slide bars (9) are rotated simultaneously, so that the drill bit (8) is rotated, and the squeezing plates (10) on the left and right sides are moved closer to or farther away from each other, while the drill bit (8) is also rotated and moved closer to or farther away from each other. Since the drill bits (8) on the left and right sides are staggered, the drill bits (8) on the left and right sides will not contact each other, and when the drill bits (8) are about to contact the opposite squeezing plates (10), they will start to move away, so that the garbage can be punctured and squeezed, so that the water in the garbage can be completely discharged, and the volume of the garbage can be compressed; S4. Personnel can collect and clean the compressed garbage.

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