Bridge Pier Protection Structure and Protection Method for Water Conservancy Projects

Abstract

The present invention relates to the technical field of bridge pier protection, and specifically discloses a bridge pier protection structure and a protection method for water conservancy projects. It includes: an outer connecting rod, which is arranged on the outer side of the bridge pier body; a protection mechanism, which uses elastic deformability to relieve the impact force of hard impurities in the water flow; a cleaning mechanism, which is used to scrape and clean the wet mud and adhered debris accumulated on the surface of the protection mechanism; the protection mechanism includes a V-shaped air cushion, the V-shaped air cushion is a V-shaped rubber body with a V-shaped cavity inside, and the inner side of the V-shaped air cushion is fixedly connected to the outer side of the diversion component. By setting the protection mechanism to use elastic deformability to relieve the impact force of hard impurities in the water flow, the bridge pier body can be effectively protected; by setting the cleaning mechanism to scrape and clean the wet mud and adhered debris accumulated on the surface of the protection mechanism, the influence of wet mud and adhered debris on the use effect of the protection mechanism can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge pier protection, and specifically to a protection structure and method for bridge piers in water conservancy projects. Background Art

[0002] Bridges are the connection and extension of roads and play an important role on land and water. With the rapid development of the shipping industry and related offshore industries, cross-river and cross-sea bridges are increasing day by day, and their scale is also getting larger and larger. As the supporting structure of the bridge, bridge piers bear various loads transmitted from the upper structure, including vehicle loads, pedestrian loads, wind loads, seismic loads, etc., and transmit these loads to the foundation and the ground to ensure the stability and safety of the bridge.

[0003] At present, in water conservancy projects, the protection of bridge piers is mostly carried out by setting baffles to resist the impact of water flow and stones. However, with the continuous occurrence of the hard impact of stones driven by the water flow on the baffles, the baffles are gradually damaged and difficult to use for a long time. Therefore, we propose a new protection structure and method for bridge piers in water conservancy projects. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a protection structure and method for bridge piers in water conservancy projects. The technical solutions adopted by the present invention are as follows:

[0005] The present invention provides a protection structure for bridge piers in water conservancy projects, including:

[0006] An outer connecting rod, which is arranged outside the bridge pier body;

[0007] A protection mechanism, which unloads the impact force of hard impurities in the water flow through elastic deformability;

[0008] A cleaning mechanism, which is used to scrape and clean the wet mud and adhering sundries accumulated on the surface of the protection mechanism;

[0009] One end of the outer connecting rod is fixedly connected to the outside of the bridge pier body, the other end of the outer connecting rod away from the bridge pier body is fixedly connected to the protection mechanism, one side of the bridge pier body is fixedly connected to one side of the cleaning mechanism, and there are two cleaning mechanisms;

[0010] The protection mechanism includes a V-shaped air cushion, the V-shaped air cushion is a V-shaped rubber body with a V-shaped cavity inside, a flow guiding component is arranged on the inner side of the V-shaped air cushion, the inner side of the V-shaped air cushion is fixedly connected to the outer side of the flow guiding component, the inner side of the flow guiding component is fixedly connected to the other end of the outer connecting rod away from the bridge pier body, and the two cleaning mechanisms are respectively used to clean the two outer sides of the V-shaped air cushion.

[0011] Preferably, a V-shaped baffle is fixedly connected to the outer side of the V-shaped air cushion, a return spring is fixedly connected to the inner wall of the V-shaped air cushion, an inner support round rod is fixedly connected to the part of the inner wall of the V-shaped air cushion inside the return spring, an inner built-in connecting rod is fixedly connected to the middle of the inner wall of the V-shaped air cushion, and a V-shaped inner support plate is fixedly connected to the end of the inner built-in connecting rod away from the V-shaped air cushion.

[0012] Preferably, a plurality of the return springs are provided, and the plurality of return springs are distributed on the inner wall of the V-shaped air cushion. A plurality of the inner support round rods are provided, and the plurality of inner support round rods are distributed on the part of the inner wall of the V-shaped air cushion inside the return spring.

[0013] Preferably, one end of the inner support round rod penetrates through the V-shaped air cushion and extends to the inside of the flow guiding component, and the side of the V-shaped inner support plate away from the inner built-in connecting rod is fixedly connected to the inner wall of the V-shaped air cushion.

[0014] Preferably, the flow guiding component includes a diamond-shaped guide plate. A pair of first connecting rods are fixedly connected to the upper and lower ends of the adjacent outer sides of the diamond-shaped guide plate close to the V-shaped air cushion. The end of the first connecting rod away from the diamond-shaped guide plate is fixedly connected to an arc-shaped guide plate. Shunt round holes are formed on the outer surface of the arc-shaped guide plate. A pair of second connecting rods are fixedly connected to the upper and lower ends of the inner side of the arc-shaped guide plate away from the first connecting rod, and the end of the second connecting rod away from the arc-shaped guide plate is fixedly connected to the outer side of the diamond-shaped guide plate.

[0015] Preferably, the inner side of the diamond-shaped guide plate is fixedly connected to the end of the outer connecting rod away from the bridge pier column body, and the other two outer sides of the diamond-shaped guide plate without the arc-shaped guide plate are fixedly connected to the inner side of the V-shaped air cushion.

[0016] Preferably, a plurality of the shunt round holes are provided, and the plurality of shunt round holes are evenly distributed on the outer surface of the arc-shaped guide plate.

[0017] Preferably, the cleaning mechanism includes a fixed connecting plate. An electric slide rail is fixedly connected to one side of the fixed connecting plate. A long sliding rod is fixedly connected to the bottom of the slider of the electric slide rail. A bottom support block is fixedly connected to the bottom of the long sliding rod. An annular sleeve is sleeved on the outer surface of the long sliding rod and is rotationally connected through a bearing. A vertical long groove is formed on the outer side of the annular sleeve, and a long barbed strip is fixedly connected to the inner wall of the vertical long groove.

[0018] Preferably, the side of the fixed connecting plate away from the electric slide rail is fixedly connected to the outer side of the bridge pier column body. A plurality of the vertical long grooves are provided, and the plurality of vertical long grooves are evenly distributed on the outer side of the annular sleeve. Annular through holes communicating with each other are formed on the inner walls of the plurality of vertical long grooves.

[0019] The present invention also provides a protection method for the bridge pier protection structure for water conservancy projects, which includes the following steps:

[0020] S1, Encirclement protection: The protection mechanism is sleeved around the outer periphery of the bridge pier body and fixedly connected through an outer connecting rod to resist and protect the bridge pier body.

[0021] S2, Elastic force unloading: The impact force of hard impurities in the water flow is unloaded through the elastic deformable performance of the protection mechanism.

[0022] S3, Water flow diversion: The water flow surging towards the protection mechanism is unloaded by two-side diversion and guided to converge again after flowing over the bridge pier body through the diversion component.

[0023] S4, Impurity cleaning: The wet mud and adhered sundries accumulated on the surface of the protection mechanism are scraped and cleaned through the cleaning mechanism.

[0024] The present invention provides a bridge pier protection structure and a protection method for water conservancy projects. It has the following beneficial effects:

[0025] 1. For the bridge pier protection structure and protection method for water conservancy projects, by setting the protection mechanism to unload the impact force of hard impurities in the water flow through its elastic deformable performance, it can solve the problem that in the existing protection method, when the bridge pier is protected by a baffle, the baffle is continuously and hard-hit by stones driven by the water flow, resulting in the baffle being difficult to be used for a long time. Thus, it can effectively protect the bridge pier body and extend the service life of the bridge pier body; by setting the cleaning mechanism to scrape and clean the wet mud and adhered sundries accumulated on the surface of the protection mechanism, it avoids the wet mud and adhered sundries from affecting the use effect of the protection mechanism.

[0026] 2. By setting a V-shaped air cushion and a return spring outside the diversion component to unload the impact force of hard impurities in the water flow through elastic deformable performance, it prevents the continuous hard impact of stones driven by the water flow on the V-shaped baffle, resulting in the V-shaped baffle being difficult to be used for a long time; through the V-shaped surface of the diamond-shaped guide plate, the water flow surging towards the bridge pier body is unloaded by two-side diversion, solving the problem that in the existing protection method, when the bridge pier is protected by a baffle, the water flow surging towards the bridge pier body directly impacts the baffle for a long time and causes damage, making it difficult to effectively protect the bridge pier body; by setting an annular sleeve and long barbs, when the long barbs rotate, they move together with the annular sleeve to scrape and clean the side surface of the V-shaped baffle, preventing the surface of the V-shaped baffle from gradually accumulating too much wet mud and adhered impurities and being difficult to remove, which affects the use.

[0027] 3. By arranging V-shaped baffles outside the V-shaped air cushion to directly contact the water flow and stones, it is possible to prevent the stones in the water flow from continuously rubbing against the rubber V-shaped air cushion for a long time and causing damage to the V-shaped air cushion; by arranging a V-shaped inner support plate at the center of the inner wall of the V-shaped air cushion to provide a fitting support for the middle area, it is possible to prevent the middle area of the V-shaped air cushion from sagging and affecting the water flow diversion effect.

[0028] 4. The diverted water flow is redirected inward again through the arc path of the arc-shaped guide plate, preventing the water flow at the diversion point of the diamond-shaped guide plate from concentrating on both sides of the diamond-shaped guide plate and causing excessive water pressure on the subsequent bridge pier body due to rapid water flow. Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of the bridge pier protection structure of the present invention from one perspective;

[0030] Figure 2 It is a schematic structural diagram of the bridge pier protection structure of the present invention from another perspective;

[0031] Figure 3 It is a schematic structural diagram of the protection mechanism in the present invention;

[0032] Figure 4 It is a schematic internal structural diagram of the protection mechanism in the present invention;

[0033] Figure 5 It is a schematic structural diagram of the diversion component in the present invention from one perspective;

[0034] Figure 6 It is a schematic structural diagram of the diversion component in the present invention from another perspective;

[0035] Figure 7 It is a schematic structural diagram of the cleaning mechanism in the present invention;

[0036] Figure 8 In the present invention Figure 7 It is an enlarged schematic structural diagram of part A.

[0037] In the figure: 1. Bridge pier body; 2. Outer connecting rod; 3. Protection mechanism; 4. Cleaning mechanism; 301. V-shaped air cushion; 302. Diversion component; 303. V-shaped baffle; 304. Return spring; 305. Inner support round rod; 306. Built-in connecting rod; 307. V-shaped inner support plate; 3021. Diamond-shaped guide plate; 3022. First connecting rod; 3023. Arc-shaped guide plate; 3024. Diversion round hole; 3025. Second connecting rod; 401. Fixed connecting plate; 402. Electric slide rail; 403. Long sliding rod; 404. Bottom support block; 405. Ring-shaped sleeve; 406. Vertical long groove; 407. Long barbs; 408. Ring-shaped through hole. Detailed Embodiment

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figures 1 - 6 The bridge pier protection structure for water conservancy projects provided by the embodiment of the present invention includes:

[0040] An outer connecting rod 2, which is arranged outside the bridge pier body 1;

[0041] The protection mechanism 3 removes the impact force of hard impurities in the water flow through elastic deformability;

[0042] The cleaning mechanism 4 is used to scrape and clean up the wet mud and adherent debris accumulated on the surface of the protection mechanism 3;

[0043] The outer side of the bridge pier body 1 is fixedly connected to one end of the outer connecting rod 2, the end of the outer connecting rod 2 away from the bridge pier body 1 is fixedly connected to the protection mechanism 3, the outer side of the bridge pier body 1 is fixedly connected to one side of the cleaning mechanism 4, and two cleaning mechanisms 4 are provided;

[0044] The protection mechanism 3 includes a V-shaped air cushion 301, which is a V-shaped rubber body with a V-shaped cavity inside. A flow guide component 302 is arranged on the inner side of the V-shaped air cushion 301. The inner side of the V-shaped air cushion 301 is fixedly connected to the outer side of the flow guide component 302. The inner side of the flow guide component 302 is fixedly connected to an end of the outer connecting rod 2 away from the bridge pier body 1. The two cleaning mechanisms 4 are respectively used to clean the two outer side surfaces of the V-shaped air cushion 301.

[0045] A V-shaped baffle 303 is fixedly connected to the outer side of the V-shaped air cushion 301, a return spring 304 is fixedly connected to the inner wall of the V-shaped air cushion 301, an inner support round rod 305 is fixedly connected to the inner wall of the V-shaped air cushion 301 located inside the return spring 304, an inner connecting rod 306 is fixedly connected to the middle of the inner wall of the V-shaped air cushion 301, and a V-shaped inner support plate 307 is fixedly connected to the end of the inner connecting rod 306 away from the V-shaped air cushion 301;

[0046] There are multiple return springs 304, and the multiple return springs 304 are distributed on the inner wall of the V-shaped air cushion 301. There are multiple inner support round rods 305, and the multiple inner support round rods 305 are distributed on the inner wall of the V-shaped air cushion 301 located inside the return spring 304.

[0047] One end of the inner supporting circular rod 305 penetrates through the V-shaped air cushion 301 and extends to the inner side of the flow guiding component 302. One side of the V-shaped inner supporting plate 307 away from the built-in connecting rod 306 is fixedly connected to the inner wall of the V-shaped air cushion 301;

[0048] The flow guiding component 302 includes a diamond-shaped guide plate 3021. A pair of first connecting rods 3022 are fixedly connected to the upper and lower ends of the adjacent two outer side faces of the diamond-shaped guide plate 3021 close to the V-shaped air cushion 301. One end of the first connecting rod 3022 away from the diamond-shaped guide plate 3021 is fixedly connected to an arc-shaped guide plate 3023. Flow dividing round holes 3024 are formed on the outer surface of the arc-shaped guide plate 3023. A pair of second connecting rods 3025 are fixedly connected to the upper and lower ends of the inner side of the arc-shaped guide plate 3023 away from the first connecting rod 3022. One end of the second connecting rod 3025 away from the arc-shaped guide plate 3023 is fixedly connected to the outer side face of the diamond-shaped guide plate 3021. The inner side of the diamond-shaped guide plate 3021 is fixedly connected to one end of the outer connecting rod 2 away from the bridge pier body 1. The other two outer side faces of the diamond-shaped guide plate 3021 without the arc-shaped guide plate 3023 are fixedly connected to the inner side of the V-shaped air cushion 301. A plurality of flow dividing round holes 3024 are provided, and the plurality of flow dividing round holes 3024 are evenly distributed on the outer surface of the arc-shaped guide plate 3023.

[0049] During use, the protection mechanism 3 is sleeved around the bridge pier body 1, and the protection mechanism 3 is fixedly connected to the bridge pier body 1 through the outer connecting rod 2 to resist and protect the bridge pier body 1, and the impact force of the hard impurities in the water flow is removed through the elastic deformable performance of the protection mechanism 3; the water flow surging towards the protection mechanism 3 is discharged by two-side flow division through the flow guiding component 302 and the water flow is guided to converge again after passing over the bridge pier body 1; the wet mud and adhered sundries accumulated on the surface of the protection mechanism 3 are scraped and cleaned by the cleaning mechanism 4.

[0050] When the water flow contacts the V-shaped baffle 303, it will be diverted to both sides through the V-shaped guide of the V-shaped baffle 303 and re-converge when it flows to the rear of the bridge pier body 1. The impact force of the water flow and the impact force of the stone will push the V-shaped baffle 303, causing the inner side of the V-shaped air cushion 301 to be concave and push the return spring 304 on its inner wall to contract, so that the inner supporting round rod 305 moves inward together. The V-shaped air cushion 301 and the return spring 304 are arranged on the outer side of the guide component 302 to remove the impact force of hard impurities in the water flow through elastic deformable performance, so as to prevent the V-shaped baffle 303 from being hard impacted by the stone driven by the water flow, which makes the V-shaped baffle 303 difficult to use for a long time. The round support rod 305 is used to support the inner side of the V-shaped air cushion 301 to prevent the return spring 304 from bending, deforming and being damaged when the return spring 304 is pushed to contract due to uneven pressure on the V-shaped air cushion 301; a V-shaped baffle 303 is provided on the outside of the V-shaped air cushion 301 to be in direct contact with the water flow and stones, so as to prevent the V-shaped air cushion 301 from being damaged due to long-term friction contact between the stones in the water flow and the V-shaped air cushion 301 made of rubber; a V-shaped inner support plate 307 is provided at the center of the inner wall of the V-shaped air cushion 301 to provide a close-fitting support for the middle area of ​​the V-shaped air cushion 301, so as to prevent the middle area of ​​the V-shaped air cushion 301 from being dented under the impact of the water flow and stones, thereby affecting the diversion effect of the water flow; the diamond guide plate 3021 is provided to prevent the V-shaped air cushion 301 from being dented due to the impact of the water flow and stones, thereby affecting the diversion effect of the water flow. It is sleeved on the periphery of the bridge pier body 1 and fixedly connected by the external connecting rod 2, and the V-shaped surface of the diamond guide plate 3021 is used to divert and unload the water flowing toward the bridge pier body 1, which solves the problem that when the bridge pier is protected by the baffle in the existing protection method, the water flowing toward the bridge pier body 1 directly impacts the baffle for a long time and causes damage, making it difficult to effectively protect the bridge pier body 1; the water diverted by the diamond guide plate 3021 flows to the arc guide plates 3023 on both sides and contacts the arc guide plates 3023, and the diverted water flow is diverted to the inside again through the arc path of the arc guide plate 3023; the diverted water flow will pass through the diverting plate 3021 in sequence when flowing along the arc path of the arc guide plate 3023 The circular hole 3024 is secondary diverted and discharged, and a plurality of diverting circular holes 3024 are opened on the surface of the arc guide plate 3023 to divert and discharge the water inside the arc guide plate 3023 in sequence, preventing the water diverted and converged by the arc guide plate 3023 from being concentrated between the two arc guide plates 3023, causing the water flow in the area between the two arc guide plates 3023 to be still too turbulent; a plurality of first connecting rods 3022 and second connecting rods 3025 are set between the diamond guide plate 3021 and the arc guide plate 3023 to connect and fix the arc guide plate 3023, preventing the arc guide plate 3023 from being too turbulent when it contacts the diverted water flow, and the water pressure pushes the arc guide plate 3023 to be separated from the diamond guide plate 3021.

[0051] See also Figures 1 - 8, the cleaning mechanism 4 provided by the embodiment of the present invention includes a fixed connecting plate 401. One side of the fixed connecting plate 401 is fixedly connected with an electric slide rail 402. The bottom of the slider of the electric slide rail 402 is fixedly connected with a long slide bar 403. The bottom of the long slide bar 403 is fixedly connected with a bottom support block 404. The outer surface of the long slide bar 403 is sleeved and rotatably connected with an annular sleeve 405 through a bearing. A vertical long groove 406 is opened on the outer side of the annular sleeve 405. The inner wall of the vertical long groove 406 is fixedly connected with a long thorn strip 407; the side of the fixed connecting plate 401 away from the electric slide rail 402 is fixedly connected with the outer side of the bridge pier body 1. A plurality of vertical long grooves 406 are provided, and the plurality of vertical long grooves 406 are evenly distributed on the outer side of the annular sleeve 405. Annular through holes 408 communicating with each other are opened on the inner walls of the plurality of vertical long grooves 406.

[0052] During use, after the V-shaped baffle 303 is used for a long time, the electric slide rail 402 is used to drive the long slide bar 403 to drive the bottom support block 404 and the annular sleeve 405 to move along the outer side surface of the V-shaped baffle 303 together. When the annular sleeve 405 moves, it always contacts the outer side surface of the V-shaped baffle 303. When the water flow contacts the annular sleeve 405, it will push the annular sleeve 405 to rotate around the long slide bar 403. The rotational connection between the long slide bar 403 and the annular sleeve 405 facilitates removing the pushing force of the water flow, preventing the annular sleeve 405 from gradually driving the long slide bar 403 to disengage from the connection with the electric slide rail 402 under the influence of the long-term water flow pushing force and affecting the driving effect; by opening the vertical long groove 406 on the surface of the annular sleeve 405, it is convenient for the water flow to pour in and push the annular sleeve 405 to rotate by contacting the inner wall of the vertical long groove 406, preventing the surface of the annular sleeve 405 from being too smooth and making it difficult to push the annular sleeve 405 to rotate greatly when encountering a steady water flow and affecting the force unloading effect; when the annular sleeve 405 rotates, it drives the long thorn strip 407 on the inner wall of the vertical long groove 406 to rotate together. When the long thorn strip 407 rotates, it moves along with the annular sleeve 405 and scrapes and cleans the side surface of the V-shaped baffle 303, preventing the surface of the V-shaped baffle 303 from gradually accumulating too much wet mud and adhering impurities after long-term use and being difficult to remove, which affects the use; by opening the annular through holes 408 in the vertical long groove 406, the plurality of vertical long grooves 406 are communicated with each other to facilitate the water flow to pass through, preventing the water flow from bringing in wet mud and adhering sundries when entering the vertical long groove 406 and being difficult to effectively drain with the water flow, which affects the use of the long thorn strip 407.

[0053] The embodiment of the present invention also provides a protection method for a bridge pier protection structure for a water conservancy project, which includes the following steps:

[0054] S1, surrounding protection: The protection mechanism 3 is sleeved around the bridge pier body 1 and fixedly connected through the outer connecting rod 2 to resist and protect the bridge pier body 1;

[0055] S2, Elastic force relief: The impact force of hard impurities in the water flow is relieved through the elastic deformable performance of the protection mechanism 3;

[0056] S3, Water flow diversion: The water flow surging towards the protection mechanism 3 is discharged in a two-sided split manner through the diversion component 302 and guided to flow over the bridge pier body 1 and then converge again;

[0057] S4, Impurity cleaning: The wet mud and adhered debris accumulated on the surface of the protection mechanism 3 are scraped and cleaned through the cleaning mechanism 4.

[0058] The specific principles and usage methods of each component have been elaborated in detail in the above embodiments and will not be repeated here.

[0059] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. A bridge pier protection structure for hydraulic engineering, characterized in that Including: An outer connecting rod (2), which is arranged on the outer side of the bridge pier body (1); A protection mechanism (3), which unloads the impact force of hard impurities in the water flow through elastic deformability; A cleaning mechanism (4), which is used to scrape and clean the wet mud and adhered sundries accumulated on the surface of the protection mechanism (3); One end of the outer side of the bridge pier body (1) is fixedly connected to one end of the outer connecting rod (2), the end of the outer connecting rod (2) far from the bridge pier body (1) is fixedly connected to the protection mechanism (3), one side of the outer side of the bridge pier body (1) is fixedly connected to one side of the cleaning mechanism (4), and there are two cleaning mechanisms (4); The protection mechanism (3) includes a V-shaped air cushion (301), the V-shaped air cushion (301) is a V-shaped rubber body with a V-shaped cavity inside, a flow guiding component (302) is arranged on the inner side of the V-shaped air cushion (301), the inner side of the V-shaped air cushion (301) is fixedly connected to the outer side of the flow guiding component (302), and the inner side of the flow guiding component (302) is fixedly connected to the end of the outer connecting rod (2) far from the bridge pier body (1), and the two cleaning mechanisms (4) are respectively used to clean the two outer sides of the V-shaped air cushion (301); A V-shaped baffle (303) is fixedly connected to the outer side of the V-shaped air cushion (301), a return spring (304) is fixedly connected to the inner wall of the V-shaped air cushion (301), an inner support round rod (305) is fixedly connected to the part of the inner wall of the V-shaped air cushion (301) inside the return spring (304), an inner built-in connecting rod (306) is fixedly connected to the middle of the inner wall of the V-shaped air cushion (301), and a V-shaped inner support plate (307) is fixedly connected to the end of the inner built-in connecting rod (306) far from the V-shaped air cushion (301); The flow guiding component (302) includes a diamond-shaped guide plate (3021), a pair of first connecting rods (3022) are fixedly connected to the upper and lower ends of the adjacent two outer sides of the diamond-shaped guide plate (3021) close to the V-shaped air cushion (301), the end of the first connecting rod (3022) far from the diamond-shaped guide plate (3021) is fixedly connected to an arc-shaped guide plate (3023), diversion round holes (3024) are formed on the outer surface of the arc-shaped guide plate (3023), and a pair of second connecting rods (3025) are fixedly connected to the upper and lower ends of the inner side of the arc-shaped guide plate (3023) far from the first connecting rod (3022), and the end of the second connecting rod (3025) far from the arc-shaped guide plate (3023) is fixedly connected to the outer side of the diamond-shaped guide plate (3021); The cleaning mechanism (4) includes a fixed connecting plate (401). One side of the fixed connecting plate (401) is fixedly connected with an electric slide rail (402). The bottom of the slider of the electric slide rail (402) is fixedly connected with a long slide bar (403). The bottom of the long slide bar (403) is fixedly connected with a bottom support block (404). The outer surface of the long slide bar (403) is sleeved and rotatably connected with an annular sleeve (405) through a bearing. The outer side of the annular sleeve (405) is provided with a vertical long groove (406). The inner wall of the vertical long groove (406) is fixedly connected with a long thorn strip (407).

2. The bridge pier protection structure for water conservancy projects according to claim 1, characterized in that: A plurality of the return springs (304) are provided, and the plurality of return springs (304) are distributed on the inner wall of the V-shaped air cushion (301). A plurality of the inner support round rods (305) are provided, and the plurality of inner support round rods (305) are distributed on the inner wall of the V-shaped air cushion (301) at a position inside the return springs (304).

3. The bridge pier protection structure for hydraulic engineering according to claim 1, characterized in that: One end of the inner support round rod (305) penetrates through the V-shaped air cushion (301) and extends to the inside of the flow guiding component (302). The side of the V-shaped inner support plate (307) away from the built-in connecting rod (306) is fixedly connected with the inner wall of the V-shaped air cushion (301).

4. The bridge pier protection structure for water conservancy projects according to claim 1, characterized in that: The inner side of the diamond-shaped guide plate (3021) is fixedly connected with one end of the outer connecting rod (2) away from the bridge pier body (1). The other two outer sides of the diamond-shaped guide plate (3021) without the arc-shaped guide plate (3023) are fixedly connected with the inside of the V-shaped air cushion (301).

5. The bridge pier protection structure for water conservancy projects according to claim 1, characterized in that: A plurality of the flow splitting round holes (3024) are provided, and the plurality of flow splitting round holes (3024) are evenly distributed on the outer surface of the arc-shaped guide plate (3023).

6. The bridge pier protection structure for water conservancy projects according to claim 1, characterized in that: The side of the fixed connecting plate (401) away from the electric slide rail (402) is fixedly connected with the outer side of the bridge pier body (1). A plurality of the vertical long grooves (406) are provided, and the plurality of vertical long grooves (406) are evenly distributed on the outer side of the annular sleeve (405). The inner walls of the plurality of vertical long grooves (406) are provided with annular through holes (408) communicated with each other.

7. The protection method of the bridge pier protection structure for hydraulic engineering according to any one of claims 1-6, characterized in that, It includes the following steps: S1, surrounding protection: The protection mechanism (3) is sleeved around the bridge pier body (1) and fixedly connected through the outer connecting rod (2) to resist and protect the bridge pier body (1). S2, elastic force unloading: The impact force of hard impurities in the water flow is unloaded through the elastic deformable performance of the protection mechanism (3). S3, water flow diversion: The water flow surging towards the protection mechanism (3) is unloaded by two-side splitting and guided to flow over the bridge pier body (1) and then converge again through the flow guiding component (302). S4, impurity cleaning: The wet mud and adhered sundries accumulated on the surface of the protection mechanism (3) are scraped and cleaned through the cleaning mechanism (4).

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