Anti-scouring turbulent flow mechanism for bridge pier

Abstract

The invention discloses an anti-scour turbulent flow mechanism for a bridge pier, and relates to the technical field of bridge pier protection, the anti-scour turbulent flow mechanism comprises a turbulent flow assembly, the turbulent flow assembly comprises a turbulent flow cover arranged on one side of the bridge pier, a base plate is fixed on one side of the turbulent flow cover, a flow guide plate is fixed on the top of the base plate, and a ground cone is fixed on the bottom of the turbulent flow cover; and the downward pressing assembly is arranged on one side of the bridge pier and comprises a connecting piece arranged on the bridge pier. The device has the beneficial effects that through cooperation of the turbulent flow assembly and the downward pressing assembly, the turbulent flow cover and the base plate are attached to a riverbed to achieve foundation turbulent flow anti-scouring, the guide plate guides water flow to the two sides of the pier to reduce direct scouring, meanwhile, a sleeve can be pushed through an adjusting rod, a driving gear and other structures of the downward pressing piece, and the turbulent flow cover is driven to move downwards; the problem that the lower portion of the turbulent flow cover is emptied after a riverbed is scoured is effectively solved, the turbulent flow cover is tightly attached to the riverbed all the time, the situation that riverbed soil loss is accelerated after the turbulent flow cover is suspended is avoided, and the anti-scour effect of the bottom of the pier is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of bridge pier protection technology, and in particular to a turbulence-disrupting mechanism for preventing bridge pier erosion. Background Technology

[0002] Under the long-term impact of water flow, scour pits easily form in the riverbed around the bridge piers. In particular, the direct impact of water flow on the upstream side and the suction of horseshoe-shaped vortices can easily lead to the loss of riverbed soil and exposure of the bridge pier foundation, which seriously affects the stability of the bridge structure. Existing bridge pier anti-scour technologies mostly adopt the use of diversion slopes, flow deflectors and other structures attached to the riverbed to divert and reduce scour, or passive protection through methods such as riprap and protective plates. However, there are obvious defects in practical applications: most diversion and flow deflector structures are only fixed by anchoring or their own weight. After the riverbed is scourted by water flow, the area below the structure is easily hollowed out and becomes suspended. This not only loses the anti-scour effect, but also creates local vortices due to the gap between the structure and the riverbed, which accelerates the loss of surrounding soil.

[0003] Meanwhile, existing devices lack adaptive adjustment capabilities. When the impact force of water flow increases sharply during flood season, the rigid flow-guiding and disturbance structure is easily deformed or even displaced by the impact of strong flow. Furthermore, the force of the disturbance structure being pushed by the flood will be transmitted to the bridge pier, causing the bottom of the bridge pier to be subjected to excessive lateral force. Summary of the Invention

[0004] Purpose of the invention: The problem to be solved by the present invention is that the anti-scour structure of bridge piers is easily hollowed out and suspended, lacks self-adjustment capability, and the turbulence structure is easily displaced under strong flow impact and transmits a large lateral force to the bridge pier.

[0005] Technical solution: The present invention provides a turbulence-disrupting mechanism for preventing scour of bridge piers, comprising a turbulence-disrupting component, including a turbulence-disrupting hood disposed on one side of the bridge pier, a base plate fixed to one side of the turbulence-disrupting hood, a guide plate fixed to the top of the base plate, and a ground cone fixed to the bottom of the turbulence-disrupting hood; The downward pressure assembly, located on one side of the bridge pier, includes a connector mounted on the bridge pier. The connector includes a clamp fixed to the surface of the bridge pier, a connecting seat fixed to the surface of the clamp, an adapter seat rotatably connected to the surface of the connecting seat, a support rod rotatably connected to the surface of the adapter seat, a sleeve fixed to the end of the support rod, a support seat rotatably connected to the surface of the sleeve, a pressure plate fixed to one side of the support seat, a threaded rod sliding within the pressure plate, a threaded sleeve rotatably connected to the surface of the threaded rod via threads, the threaded sleeve rotatably connected within the pressure plate, and the threaded rod fixed within the spoiler.

[0006] Furthermore, the pressing component of the mechanism also includes a limiting member disposed on the pressure plate. The limiting member includes a rod that slides within the pressure plate. A slot is provided on the surface of the threaded sleeve. The end of the rod can be inserted into the slot. A first spring is fixed inside the rod. The other end of the first spring is fixed inside the pressure plate. A handle is fixed on one side of the rod.

[0007] Furthermore, the limiting component of the mechanism also includes a support shell fixed to one side of the pressure plate, a movable plate sliding inside the support shell, a stop bar fixed to one side of the movable plate, the stop bar being located on one side of the handle, a second spring fixed inside the movable plate, the other end of the second spring being fixed inside the support shell, and a pull rod fixed to the top of the movable plate.

[0008] Furthermore, the pressing component of the mechanism also includes a pressing member disposed on the sleeve, the pressing member including a connecting sleeve rotatably connected to the surface of the sleeve, an adjusting rod fixed inside the connecting sleeve, and a support rod slidingly disposed on the surface of the adjusting rod.

[0009] Furthermore, the pressing component of the mechanism includes a toothed groove and a sliding groove formed in the adjusting rod, a support shaft is fixed inside the support rod, a drive gear is rotatably connected to the surface of the support shaft, the drive gear meshes with the toothed groove, and an anti-fouling block is fixed inside the support rod, the anti-fouling block slides in the sliding groove.

[0010] Furthermore, the turbulence-disrupting component of the mechanism also includes a buffer member disposed on the support rod. The buffer member includes a support tube fixed to the support rod, a rotating seat fixed to the end of the support tube, a rotating shaft rotatably connected inside the rotating seat, a pull plate fixed to the surface of the rotating shaft, a third spring fixed to the other end of the pull plate, the other end of the third spring fixed to the surface of the base plate, and a stop block fixed to one side of the rotating seat, the stop block being located on one side of the pull plate.

[0011] Furthermore, the buffer component of the mechanism also includes a vertical rod fixed to the end of the pull plate, and a buffer plate is fixed to the surface of the vertical rod.

[0012] Furthermore, the pressing component of the mechanism also includes a power component disposed within the rotating seat. The power component includes a bevel gear ring rotatably connected to the surface of the rotating shaft. A first power rod and a second power rod are rotatably connected within the support tube. A bevel gear is fixed to the surface of the first power rod, and the bevel gear meshes with the bevel gear ring. The first power rod and the second power rod are connected by a universal joint. A worm gear is fixed to the end of the second power rod. A worm wheel is rotatably connected to the surface of the support shaft, and the worm gear meshes with the worm wheel. The drive gear is fixed to one side of the worm wheel.

[0013] Furthermore, the power component of the mechanism also includes a drive ring fixed to the surface of the rotating shaft, a connecting ring rotatably connected to the surface of the rotating shaft, a torsion spring fixed inside the connecting ring, the other end of the torsion spring fixed to one side of the drive ring, a stop block fixed to one side of the drive ring, and a limit groove formed on the connecting ring.

[0014] Furthermore, the power component of the mechanism also includes a limiting pin that slides within the connecting ring, a fourth spring that is fixed inside the limiting pin, and the other end of the fourth spring that is fixed to the inner wall of the connecting ring. A slot is provided on one side of the bevel ring.

[0015] Beneficial effects: Compared with the prior art, the significant advantages of the present invention are: the mechanism achieves basic scour prevention by cooperating with the turbulence component and the pressure component, with the turbulence cover and base plate adhering to the riverbed, and the guide plate directing the water flow to both sides of the bridge pier to reduce direct scour. At the same time, the sleeve can be pushed by the adjustment rod, drive gear and other structures of the pressure component, which drives the turbulence cover to move downward, effectively solving the problem of the turbulence cover being hollowed out after the riverbed is scourged, so that the turbulence cover is always in close contact with the riverbed, avoiding the situation that the turbulence cover is suspended and accelerates the loss of riverbed soil, and greatly improving the scour prevention effect at the bottom of the bridge pier. Meanwhile, this invention features an adaptive adjustment structure that links the buffer component and the power component. When the water flow velocity is too fast, such as during floods, the water flow impacts the upright and drives the pull plate to rotate around the rotating shaft. The buffer plate tilts to reduce the angle with the water flow, thus reducing the thrust of the disturbance mechanism on the bridge pier when the water flow increases. At the same time, the rotation of the rotating shaft drives the drive gear to rotate through the transmission structure such as the bevel gear ring, worm gear, and worm wheel. This drives the adjustment rod to move the disturbance cover towards the riverbed, achieving synchronous linkage between water flow buffering and pressure reduction and the disturbance cover pressing against the riverbed. Furthermore, when the upright is reset, it will not cause the disturbance cover to move away from the riverbed, allowing the device to adapt to different water flow conditions and improving the stability and adaptability of scour prevention. Attached Figure Description

[0016] Figure 1 A scene illustration of a flow-disrupting mechanism for preventing erosion of bridge piers; Figure 2 A turbulence-disrupting mechanism for pier scour prevention Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 A turbulence-disrupting mechanism for pier scour prevention Figure 1 Enlarged view of the structure at point B in the middle; Figure 4 A structural diagram of the adapter seat for the scour prevention mechanism of bridge piers; Figure 5 Another structural view of the turbulence cover of the turbulence-preventing mechanism for bridge piers; Figure 6 A turbulence-disrupting mechanism for pier scour prevention Figure 5 Enlarged view of the structure at point C; Figure 7 A structural diagram of the connecting sleeve for the scour-prevention mechanism of bridge piers; Figure 8 Diagram of the pressure plate structure for the scour-prevention mechanism of bridge piers; Figure 9 A turbulence-disrupting mechanism for pier scour prevention Figure 8 Enlarged view of the structure at point D; Figure 10 A cross-sectional view of the threaded rod of the scour-prevention mechanism for bridge piers; Figure 11 Diagram of the insert rod structure for the scour prevention mechanism of bridge piers; Figure 12 A structural diagram of the adjusting rod of the scour-prevention mechanism for bridge piers; Figure 13 A cross-sectional view of the support pipe for the scour prevention mechanism of bridge piers; Figure 14 A diagram of the drive gear structure for the scour-prevention mechanism of bridge piers; Figure 15 A structural diagram of the power component of the scour-prevention mechanism for bridge piers; Figure 16 A cross-sectional view of the connecting ring of the scour-prevention mechanism for bridge piers; Figure 17 Another cross-sectional view of the connecting ring of the scour-prevention mechanism for bridge piers; Figure 18 Diagram of the bevel gear ring structure for the scour prevention mechanism of bridge piers.

[0017] In the diagram: 1. Aerodynamic component; 11. Pier; 12. Aerodynamic cover; 13. Base plate; 15. Deflector plate; 16. Ground cone; 2. Pressing component; 21. Connector; 211. Clamp; 212. Connecting seat; 213. Adapter seat; 214. Support rod; 215. Sleeve; 216. Support seat; 217. Pressure plate; 218. Threaded rod; 219. Threaded sleeve; 22. Limiting component; 221. Insert rod; 219-1. Slot; 222. First spring; 223. Handle; 224. Support shell; 225. Moving plate; 226. Stop bar; 227. Second spring; 228. Pull rod; 223. Pressing component; 231. Connecting sleeve; 232. Adjusting rod; 232-1. ; Slide groove 232-2; Support shaft 233; Drive gear 234; Anti-fouling block 235; Buffer component 14; Support tube 141; Rotating seat 142; Rotating shaft 143; Pull plate 144; Third spring 145; Stop block 146; Upright rod 147; Buffer plate 148; Power component 24; Bevel ring 241; First power rod 242; Second power rod 243; Bevel gear 2413; Worm gear 244; Worm wheel 245; Drive ring 246; Connecting ring 247; Torsion spring 248; Stop block 249; Limit groove 247-1; Limit pin 2411; Fourth spring 2412; Slot 241-1. Detailed Implementation

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0020] Example 1

[0021] Reference Figures 1-10 This is the first embodiment of the present invention, which provides a flow disturbance mechanism for preventing scour of bridge piers. The flow disturbance mechanism for preventing scour of bridge piers includes a flow disturbance component 1, including a flow disturbance cover 12 disposed on one side of the bridge pier 11. The flow disturbance cover 12 has an arc-shaped structure and fits the riverbed to prevent water flow from scourting the riverbed. A base plate 13 is fixed to one side of the flow disturbance cover 12. The base plate 13 also fits the riverbed to prevent water flow from scourting the riverbed. A guide plate 15 is fixed to the top of the base plate 13. There are multiple guide plates 15, and they are arranged from low to high from the flow disturbance cover 12 to the bridge pier 11. They can guide the water flow above the base plate 13 to both sides of the bridge pier 11, reducing the direct scour of the bridge pier 11. A ground cone 16 is fixed to the bottom of the flow disturbance cover 12. The ground cone 16 can be inserted into the riverbed, thereby improving the stability of the flow disturbance cover 12.

[0022] The downward pressure component 2, located on one side of the pier 11, includes a connector 21 mounted on the pier 11. The connector 21 supports the spoiler 12. The connector 21 includes two clamps 211 fixed to the surface of the pier 11. A connecting seat 212 is fixed to the surface of the clamp 211. A transition seat 213 is rotatably connected to the surface of the connecting seat 212. A support rod 214 is rotatably connected to the surface of the transition seat 213. A sleeve 215 is fixed to the end of the support rod 214. Two support seats 21 are rotatably connected to the surface of the sleeve 215. 6. A pressure plate 217 is fixed on one side of the support base 216. A threaded rod 218 slides inside the pressure plate 217. A threaded sleeve 219 is rotatably connected to the surface of the threaded rod 218 through a thread. The threaded sleeve 219 is rotatably connected inside the pressure plate 217. The threaded rod 218 is fixed inside the spoiler 12. The two threaded rods 218 have opposite directions of rotation. The threaded sleeves 219 on the two threaded rods 218 rotate in opposite directions at the same time, which can drive the pressure plate 217 to move up and down relative to the spoiler 12. With the support of the support rod 214, the spoiler 12 can stay at the bottom of the riverbed.

[0023] There are three support rods 214, two of which are located on the lower side of the clamp 211 and one is located on the upper side of the clamp 211.

[0024] Example 2

[0025] Reference Figure 6 , Figure 7 , Figure 9 , Figure 11 , Figure 12 and Figure 14 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0026] Specifically, the pressing component 2 also includes a limiting member 22 disposed on the pressure plate 217. The limiting member 22 includes an insert rod 221 that slides within the pressure plate 217. The threaded sleeve 219 has slots 219-1 on its surface. There are multiple slots 219-1 arranged circumferentially on the surface of the threaded sleeve 219. The end of the insert rod 221 can be inserted into the slot 219-1. A first spring 222 is fixed inside the insert rod 221. The other end of the first spring 222 is fixed inside the pressure plate 217. The first spring 222 is in a compressed state. A handle 223 is fixed on one side of the insert rod 221. By moving the handle 223, the insert rod 221 can be moved away from the slot 219-1, thereby releasing the limiting of the threaded sleeve 219 and allowing the threaded sleeve 219 to rotate, thereby adjusting the position of the spoiler 12. After the adjustment is completed, the insert rod 221 can be reinserted into the threaded sleeve 219 to prevent the threaded sleeve 219 from rotating accidentally.

[0027] The limiting component 22 also includes a support shell 224 fixed to one side of the pressure plate 217. A movable plate 225 slides inside the support shell 224. A stop bar 226 is fixed to one side of the movable plate 225. The stop bar 226 is located on one side of the handle 223. The stop bar 226 is used to block the handle 223 so that the handle 223 will not move accidentally when hit by debris at the bottom of the river.

[0028] A second spring 227 is fixed inside the movable plate 225. The other end of the second spring 227 is fixed inside the support shell 224. The second spring 227 is in a compressed state. A pull rod 228 is fixed on the top of the movable plate 225. By pulling the pull rod 228, the limit of the stop bar 226 on the handle 223 can be released. At this time, the handle 223 can be moved to the other side of the stop bar 226, so that the insertion rod 221 can be kept away from the threaded sleeve 219, which is convenient for adjusting the threaded sleeve 219 at this time.

[0029] The pressing assembly 2 also includes a pressing member 23 disposed on the sleeve 215. The pressing member 23 includes a connecting sleeve 231 rotatably connected to the surface of the sleeve 215. An adjusting rod 232 is fixed inside the connecting sleeve 231. A support rod 214 slides on the surface of the adjusting rod 232. The support rod 214 is stably connected to the clamp 211 through the adapter seat 213 and the connecting seat 212. By moving the adjusting rod 232, the sleeve 215 can be pushed through the connecting sleeve 231, thereby pressing down the turret 12 so that the turret 12 fits the riverbed.

[0030] After the riverbed has been scourted for a period of time, the area below the baffle 12 will be hollowed out. At this time, the presence of the baffle 12 will actually accelerate the loss of riverbed soil below the guide slope. By pushing the sleeve 215 with the adjusting rod 232, the baffle 12 can be moved downward, so that the baffle 12 can fit against the riverbed again and reduce the rate of soil loss on the riverbed.

[0031] The pressing component 23 includes a toothed groove 232-1 and a sliding groove 232-2 opened in the adjusting rod 232. A support shaft 233 is fixed in the support rod 214. A drive gear 234 is rotatably connected to the surface of the support shaft 233. The drive gear 234 meshes with the toothed groove 232-1. By rotating the drive gear 234, the adjusting rod 232 can be moved, thereby causing the turbulence cover 12 to fit towards the riverbed.

[0032] An anti-fouling block 235 is fixed inside the support rod 214. The anti-fouling block 235 slides in the slide groove 232-2. By setting the anti-fouling block 235, impurities in the water can be prevented from hindering the operation of the drive gear 234.

[0033] Example 3

[0034] Reference Figures 1-18 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0035] Specifically, the turbulence assembly 1 also includes a buffer 14 disposed on the support rod 214. The buffer 14 includes a support tube 141 fixed to the support rod 214. A support arm is fixed to one side of the support tube 141 to improve the stability of the support tube 141. A rotating seat 142 is fixed to the end of the support tube 141. A rotating shaft 143 is rotatably connected inside the rotating seat 142. A pull plate 144 is fixed to the surface of the rotating shaft 143. A third spring 145 is fixed to the other end of the pull plate 144. There are two third springs 145. The other end of the third spring 145 is fixed to the surface of the base plate 13. The third spring 145 is in a stretched state. A stop block 146 is fixed to one side of the rotating seat 142. The stop block 146 is located on one side of the pull plate 144 and is used to limit the angle of the pull plate 144. Through the tension of the third spring 145, the pull plate 144 presses the stop block 146 at this moment, so that the pull plate 144 stays at the current angle.

[0036] The buffer component 14 also includes a vertical rod 147 fixed to the end of the pull plate 144. A buffer plate 148 is fixed on the surface of the vertical rod 147. There are multiple buffer plates 148, which are used to buffer the water flow and reduce the impact of the water flow on the pier 11. When the water flow velocity is too fast, such as during a flood, the force of the water flow will increase, and the impact force on the vertical rod 147 will increase. At this time, the vertical rod 147 will drive the pull plate 144, so that the pull plate 144 and the vertical rod 147 rotate around the rotation shaft 143 as the fulcrum. At this time, the third spring 145 is stretched, so that the vertical rod 147 gradually tilts. When the vertical rod 147 tilts, the angle between the buffer plate 148 and the direction of water flow becomes smaller, and the resistance to water flow is reduced, thereby reducing the thrust on the pier.

[0037] The pressing assembly 2 also includes a power component 24 disposed in the rotating seat 142. The power component 24 includes a bevel ring 241 rotatably connected to the surface of the rotating shaft 143. A first power rod 242 and a second power rod 243 are rotatably connected in the support tube 141. A bevel gear 2413 is fixed on the surface of the first power rod 242. The bevel gear 2413 and the bevel ring 241 mesh. The first power rod 242 and the second power rod 243 are connected by a universal joint. When the bevel ring 241 rotates, it can drive the bevel gear 2413 to rotate, thereby causing the first power rod 242 and the second power rod 243 to rotate.

[0038] The end of the second power rod 243 is fixed with a worm 244, and a worm wheel 245 is rotatably connected to the surface of the support shaft 233. The worm 244 and the worm wheel 245 mesh, and the drive gear 234 is fixed to one side of the worm wheel 245. The rotation of the second power rod 243 can cause the worm 244 to drive the worm wheel 245 to rotate, thereby driving the drive gear 234 to rotate. This causes the drive gear 234 to drive the adjusting rod 232 to move out of the support rod 214, so that the turbulence shield 12 can move towards the riverbed and prevent the turbulence shield 12 from being suspended between itself and the riverbed.

[0039] The power component 24 also includes a drive ring 246 fixed to the surface of the rotating shaft 143. A connecting ring 247 is rotatably connected to the surface of the rotating shaft 143. A torsion spring 248 is fixed inside the connecting ring 247. The other end of the torsion spring 248 is fixed to one side of the drive ring 246. The torsion spring 248 is in a compressed state at this time.

[0040] A stop block 249 is fixed on one side of the drive ring 246, and a limit groove 247-1 is opened on the connecting ring 247. The stop block 249 is tightly attached to the inner wall of the limit groove 247-1 by the elastic force of the torsion spring 248.

[0041] The power component 24 also includes a limiting pin 2411 that slides within the connecting ring 247. There are four limiting pins 2411 arranged in a circle within the connecting ring 247. A fourth spring 2412 is fixed inside the limiting pin 2411. The other end of the fourth spring 2412 is fixed to the inner wall of the connecting ring 247. The fourth spring 2412 is in a compressed state. A slot 241-1 is provided on one side of the bevel ring 241. An inclined surface is provided at the end of the limiting pin 2411, and the end of the limiting pin 2411 can be inserted into the slot 241-1.

[0042] When in use, when the pole 147 tilts, it can drive the rotating shaft 143 to rotate, thereby driving the drive ring 246 to rotate. The drive ring 246 drives the connecting ring 247 to rotate through the torsion spring 248. This causes the connecting ring 247 to drive the bevel gear ring 241 to rotate through the limit pin 2411, thereby allowing the spoiler 12 to move towards the riverbed and preventing the spoiler 12 from being suspended between itself and the riverbed.

[0043] When the water flow velocity decreases, the upright 147 returns to its vertical position. At this time, the drive ring 246 rotates in the opposite direction. The pressure of the stop block 249 on the inner wall of the limiting groove 247-1 causes the connecting ring 247 to rotate in the opposite direction. At this time, the connecting ring 247 can drive the limiting pin 2411 to slide through the inclined surface at its end through the limiting groove 247-1, so that the bevel ring 241 will not rotate in the opposite direction. This ensures that when the upright 147 returns to its vertical position, the turbulence cover 12 will not move away from the riverbed.

[0044] If the spoiler 12 is in close contact with the riverbed, when the upright 147 tilts, the rotating shaft 143 drives the drive ring 246 to rotate. Since the spoiler 12 cannot continue to move towards the riverbed at this time, the bevel ring 241 cannot rotate, thus limiting the limit pin 2411. The connecting ring 247 cannot rotate at this time. Therefore, when the drive ring 246 rotates, it will further compress the torsion spring 248. At this time, the stop block 249 slides in the limit groove 247-1. When the upright 147 returns to vertical, the drive ring 246 also returns to vertical and rotates in the opposite direction. During this process, the connecting ring 247 does not rotate.

Claims

1. A turbulence-disrupting mechanism for preventing erosion of bridge piers, characterized in that: include, The turbulence component (1) includes a turbulence shield (12) disposed on one side of the pier (11), a base plate (13) fixed on one side of the turbulence shield (12), a guide plate (15) fixed on the top of the base plate (13), and a ground cone (16) fixed on the bottom of the turbulence shield (12). The pressing component (2) is disposed on one side of the pier (11) and includes a connector (21) disposed on the pier (11). The connector (21) includes a clamp (211) fixed to the surface of the pier (11). A connecting seat (212) is fixed to the surface of the clamp (211). A transition seat (213) is rotatably connected to the surface of the connecting seat (212). A support rod (214) is rotatably connected to the surface of the transition seat (213). A sleeve (215) is fixed at the end, and a support seat (216) is rotatably connected to the surface of the sleeve (215). A pressure plate (217) is fixed on one side of the support seat (216). A threaded rod (218) slides inside the pressure plate (217). A threaded sleeve (219) is rotatably connected to the surface of the threaded rod (218) through a thread. The threaded sleeve (219) is rotatably connected inside the pressure plate (217). The threaded rod (218) is fixed inside the spoiler (12).

2. The scour-prevention mechanism for bridge piers as described in claim 1, characterized in that: The pressing assembly (2) further includes a limiting member (22) disposed on the pressure plate (217). The limiting member (22) includes a plug rod (221) that slides within the pressure plate (217). A slot (219-1) is provided on the surface of the threaded sleeve (219). The end of the plug rod (221) can be inserted into the slot (219-1). A first spring (222) is fixed inside the plug rod (221). The other end of the first spring (222) is fixed inside the pressure plate (217). A handle (223) is fixed on one side of the plug rod (221).

3. The scour-prevention mechanism for bridge piers as described in claim 2, characterized in that: The limiting member (22) also includes a support shell (224) fixed to one side of the pressure plate (217). A movable plate (225) slides inside the support shell (224). A stop bar (226) is fixed to one side of the movable plate (225). The stop bar (226) is located on one side of the handle (223). A second spring (227) is fixed inside the movable plate (225). The other end of the second spring (227) is fixed inside the support shell (224). A pull rod (228) is fixed to the top of the movable plate (225).

4. The scour-prevention and erosion-prevention mechanism for bridge piers as described in claim 3, characterized in that: The pressing assembly (2) further includes a pressing member (23) disposed on the sleeve (215). The pressing member (23) includes a connecting sleeve (231) rotatably connected to the surface of the sleeve (215). An adjusting rod (232) is fixed inside the connecting sleeve (231), and the supporting rod (214) slides on the surface of the adjusting rod (232).

5. The scour-prevention and disturbance mechanism for bridge piers as described in claim 4, characterized in that: The pressing component (23) includes a toothed groove (232-1) and a sliding groove (232-2) formed in the adjusting rod (232). A support shaft (233) is fixed inside the support rod (214). A drive gear (234) is rotatably connected to the surface of the support shaft (233). The drive gear (234) meshes with the toothed groove (232-1). An anti-fouling block (235) is fixed inside the support rod (214). The anti-fouling block (235) slides in the sliding groove (232-2).

6. The scour-prevention and turbulence-disrupting mechanism for bridge piers as described in claim 5, characterized in that: The turbulence assembly (1) further includes a buffer (14) disposed on the support rod (214). The buffer (14) includes a support tube (141) fixed on the support rod (214). A rotating seat (142) is fixed at the end of the support tube (141). A rotating shaft (143) is rotatably connected inside the rotating seat (142). A pull plate (144) is fixed on the surface of the rotating shaft (143). A third spring (145) is fixed at the other end of the pull plate (144). The other end of the third spring (145) is fixed on the surface of the base plate (13). A stop block (146) is fixed on one side of the rotating seat (142). The stop block (146) is located on one side of the pull plate (144).

7. The scour-prevention and turbulence-disrupting mechanism for bridge piers as described in claim 6, characterized in that: The buffer (14) also includes a vertical rod (147) fixed to the end of the pull plate (144), and a buffer plate (148) is fixed on the surface of the vertical rod (147).

8. The scour-prevention mechanism for bridge piers as described in claim 7, characterized in that: The pressing assembly (2) further includes a power component (24) disposed in the rotating seat (142). The power component (24) includes a bevel ring (241) rotatably connected to the surface of the rotating shaft (143). A first power rod (242) and a second power rod (243) are rotatably connected in the support tube (141). A bevel gear (2413) is fixed on the surface of the first power rod (242). The bevel gear (2413) meshes with the bevel ring (241). The first power rod (242) and the second power rod (243) are connected by a universal joint. A worm gear (244) is fixed at the end of the second power rod (243). A worm wheel (245) is rotatably connected to the surface of the support shaft (233). The worm gear (244) meshes with the worm wheel (245). The drive gear (234) is fixed to one side of the worm wheel (245).

9. The turbulence-disrupting mechanism for pier erosion prevention as described in claim 8, characterized in that: The power component (24) also includes a drive ring (246) fixed to the surface of the rotating shaft (143). A connecting ring (247) is rotatably connected to the surface of the rotating shaft (143). A torsion spring (248) is fixed inside the connecting ring (247). The other end of the torsion spring (248) is fixed to one side of the drive ring (246). A stop block (249) is fixed to one side of the drive ring (246). A limit groove (247-1) is provided on the connecting ring (247).

10. The scour-prevention mechanism for bridge piers as described in claim 9, characterized in that: The power component (24) also includes a limiting pin (2411) that slides within the connecting ring (247). A fourth spring (2412) is fixed inside the limiting pin (2411). The other end of the fourth spring (2412) is fixed to the inner wall of the connecting ring (247). A slot (241-1) is provided on one side of the bevel ring (241).

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