Prefabricated Pier Fender Based on Water-Flow-Driven Self-Locking

Abstract

The present invention discloses an assembled pier guard ring based on water flow-driven self-locking, comprising: two fastening members, the upstream ends of the two fastening members are hinged, the downstream ends of the two fastening members are both free ends, and the two fastening members can enclose a circle, and a guide plate is provided at the free end of the fastening member; two impact plates, the two impact plates are respectively arranged on the two fastening members, and the plane where the impact plate is located intersects with the plane where the fastening member is located. The assembled pier guard ring based on water flow-driven self-locking in the embodiment of the present invention can not only effectively decelerate and dissipate the energy of the descending water flow, reduce the scouring effect of the horseshoe vortex around the pier and the wake vortex behind the pier, and achieve effective protection against local scouring of the pier, but also flexibly adjust the relative position of the guard ring and effectively maintain its protection effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge protection engineering, and particularly relates to an assembled pier guard ring based on water flow driven self-locking. Background Art

[0002] Over time, the number of bridges is increasing, the scale is getting larger, the types are becoming more complex and diverse, with a wide variety of sizes and magnificent scales. The environment where piers are built on the river (sea) bed is becoming more and more complex, and their functions are becoming more prominent. The problem of local scour is becoming more and more serious, so its research is becoming more and more urgent. The river is constantly evolving under the action of geological agents. Even if various hydraulic structures are built and bridges are laid in the river channel, the evolution of the river channel will not stop. On the contrary, these artificial buildings will cause the river evolution to proceed in a direction different from natural evolution. Bridges spanning rivers have to face various problems, among which the local scour problem of piers is a relatively serious one. Local scour mainly occurs around the foundation of piers and abutments. The flow of water around the piers is complex. The downward-flowing water in front of the piers will hollow out the river bed around the pier body, causing the foundation of the pier and abutment to be exposed. Under the long-term erosion of river water, the piers will be inclined, fractured, or even collapsed.

[0003] Guard ring protection is to set various forms of guard rings at a certain height of the pier. It can weaken the downward-flowing water and horseshoe-shaped vortices around the pier, and also weaken the energy of the forward-flowing water when it passes through the pier, thus playing a protective role. However, the traditional guard ring structure is made of concrete, and the fixing flexibility of the concrete structure is poor, making it not easy to replace and adjust. And the position of the guard ring is sensitive to the scour protection effect. In places where the river bed changes greatly and quickly, the relative position of the guard ring is likely to change, and its protection effect is difficult to maintain effectively. Therefore, in-depth research on the hydraulic scour characteristics at the pier structure, improving the existing technology, and reducing the local scour problem have become a very meaningful research direction. Summary of the Invention

[0004] To solve the problems in the related technologies, an embodiment of the present invention provides an assembled pier guard ring based on water flow driven self-locking. The present invention transmits the load through the impact of water flow on the impacted plate, forms a moment acting on the isolation component to achieve self-locking, and completely relies on the impact of water flow on the impacted plate to achieve self-locking without relying on any additional energy input. It is very convenient for both assembly work and later recycling, and the cost is also relatively low.

[0005] The assembled pier guard ring based on water flow driven self-locking in the embodiment of the present invention includes: two fastening members, the upstream ends of the two fastening members are hinged, the downstream ends of the two fastening members are both free ends, and the two fastening members can enclose a circle. A guide plate is provided at the free end of the fastening member.

[0006] There are two impact - receiving plates, which are respectively arranged on two fastening members, and the plane where the impact - receiving plate is located intersects with the plane where the fastening member is located.

[0007] In the prefabricated pier protection ring based on water - flow - driven self - locking according to the embodiment of the present invention, it can not only effectively decelerate and dissipate the energy of the descending water flow, reduce the scouring effect of the horseshoe - shaped vortex around the pier and the wake vortex behind the pier, and achieve effective protection against local scouring of the pier, but also flexibly adjust the relative position of the protection ring and effectively maintain its protection effect.

[0008] Optionally, the inner side of the fastening member is a semi - circle, and the two semi - circles form a circle. A fastening - member through - hole is longitudinally arranged through the fastening member, and a protection net is arranged in the fastening - member through - hole.

[0009] Optionally, an impact - receiving plate fixing assembly is arranged in the fastening member, and the impact - receiving plate is arranged on the fastening member through the impact - receiving plate fixing assembly.

[0010] Optionally, the impact - receiving plate fixing assembly includes a support plate, and the support plate is arranged in the middle of the through - hole of the fastening member.

[0011] Optionally, the width of the support plate is greater than the width of the impact - receiving plate, and the impact - receiving plate is arranged on the fastening member through the support plate.

[0012] Optionally, the impact - receiving plate fixing assembly further includes two protection plates. The two protection plates are spaced apart and arranged on the support plate, and the impact - receiving plate can be inserted between the two protection plates.

[0013] Optionally, the impact - receiving plate fixing assembly further includes a hinge. One side of the impact - receiving plate is arranged on the support plate through the hinge, and the other side of the impact - receiving plate extends horizontally to form a positioning piece, and the positioning piece is arranged on the support plate through an elastic pin shaft.

[0014] Optionally, the prefabricated pier protection ring based on water - flow - driven self - locking according to the embodiment of the present invention further includes an isolation assembly. The isolation assembly is arranged between the free ends of the two fastening members. The isolation assembly includes two magnetic partitions, and the two magnetic partitions are respectively connected to the free ends of the two fastening members.

[0015] Optionally, the isolation assembly further includes a threaded sleeve and two threaded rods. The two threaded rods are respectively matched with the two ends of the threaded sleeve. The threaded sleeve and the threaded rods are located between the two magnetic partitions, and the two ends of the threaded sleeve are respectively connected to one magnetic partition through one threaded rod.

[0016] Optionally, the external thread directions on the two threaded rods are opposite, and internal threads matching the external threads on the two threaded rods are respectively provided at both ends inside the threaded sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic structural diagram of an assembled pier guardrail based on water flow-driven self-locking according to Embodiment 1 of the present invention.

[0018] Figure 2 FIG. is a schematic structural diagram of an impact plate according to Embodiment 1 of the present invention.

[0019] Figure 3 FIG. is a schematic structural diagram of an impact plate according to Embodiment 2 of the present invention.

[0020] Figure 4 FIG. is an installation diagram of an impact plate according to Embodiment 2 of the present invention.

[0021] Figure 5 FIG. is a schematic structural diagram of an isolation component of the present invention.

[0022] Figure 6 FIG. is a schematic structural diagram of Embodiment 1 of the present invention.

[0023] Figure 7 FIG. is a schematic diagram of the structure of Embodiment 2 of the present invention Figure 1 .

[0024] Figure 8 FIG. is a schematic diagram of the structure of Embodiment 2 of the present invention Figure 2 .

[0025] Reference numerals:

[0026] Fastening member 1; fastening member through hole 101; fastening member hanging ring 102; semi-circular arc 103;

[0027] Impact plate 2; impact plate hanging ring 201; impact plate fixing hole 202;

[0028] Impact plate fixing assembly 3; support plate 301; protection plate 302; hinge 303; elastic pin 304;

[0029] Isolation component 4; magnetic partition 4,01; threaded rod 402; threaded sleeve 403; guide plate 5. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] As Figures 1 - 8As shown, the assembled pier guard ring based on water flow driven self-locking of an embodiment of the present invention includes two fasteners 1 and two impact plates 2, the upstream ends of the two fasteners 1 are hinged, the downstream ends of the two fasteners 1 are both free ends, and the two fasteners 1 can form a circle, and the free ends of the fasteners 1 are provided with guide plates 5.

[0032] Two impact plates 2 are respectively arranged on the two fastening parts 1, and the plane of the impact plates 2 intersects with the plane of the fastening parts 1. The impact plates 2 are the main bodies that bear the force of water impact. The impact plates 2 can be removed from the fastening parts 1 or inserted into the fastening parts 1 to withstand the impact of water.

[0033] Reference below Figures 1 - 8 The working process of the assembled pier retaining ring based on water flow driven self-locking is briefly described. First, the two impact plates 2 are inserted into the two fasteners 1, so that the two fasteners 1 are ringed around the periphery of the pier. Then the steel cable connecting the impact plates 2 and the fasteners 1 is slowly lowered. The fasteners 1 continue to sink under the action of their own weight. When the predetermined working depth is reached, the impact plates 2 are impacted by water, so that the free ends of the fasteners 1 are continuously squeezed toward the middle to achieve self-locking, and are fixed to the pier through friction.

[0034] The prefabricated, self-locking, water-driven pier retaining rings of the present invention feature a simple structure, are easy to construct, and are recyclable, allowing for timely replacement. They effectively decelerate and dissipate the energy of descending water, reducing the scouring effects of horseshoe-shaped vortices around the piers and wake vortices behind them, effectively protecting against localized scour on the piers. Furthermore, the relative position of the retaining rings can be flexibly adjusted to maintain their protective effectiveness.

[0035] like Figures 1 - 8 As shown, the assembled bridge pier retaining ring based on water flow driven self-locking of an embodiment of the present invention includes two fasteners 1 and two impact plates 2. The inner sides of the two fasteners 1 are semicircular arcs 103, and the two semicircular arcs 103 form a circle, which can match the diameter of the bridge pier. The upstream ends of the two fasteners 1 are hinged, specifically, connected by a movable hinge. The movable hinge is divided into two parts, which are made of corrosion-resistant steel. The length is consistent with the width of the semi-annular fastener 1 and has a certain width and thickness. The two connecting parts of the movable hinge are first fixed together with the two fasteners 1 by rivets. There are prefabricated hinge holes at the connection points of the connecting parts, and the two fasteners can be connected by hinge hole bolts. The two connected semi-annular fasteners can be rotated in the same plane through the movable hinge, and the hinge hole bolts rely on their own shear strength to withstand the lateral load caused by the rotation.

[0036] The fastening member 1 is provided with a fastening member through hole 101. The fastening member through hole 101 is arranged along the axial direction of the fastening member 1, that is, the fastening member through hole 101 longitudinally penetrates the fastening member 1. A protective net is provided in the fastening member through hole 101, and the protective net is a wire mesh. The setting of the fastening member through hole 101 makes the fastening member 1 become a plate frame with a semi-circular arc. The inner side of the fastening member 1 is a semi-circular arc 103, and the outer side of the fastening member 1 can be semi-circular arc-shaped, or can be rectangular or polygonal. Optionally, when the outer side of the fastening member 1 is semi-circular arc-shaped, the two fastening members 1 can be two semi-circular frames. After the two semi-circular fastening members 1 are joined together, the outer shape of the two fastening members is circular or elliptical, and can be regarded as a steel frame composed of an inner circle and an outer circle. The inner diameter of the inner circle just fits the diameter of the pier body.

[0037] The fastening member 1 is a rigid framework formed by welding semi-circular hollow corrosion-resistant steel. A layer of corrosion-resistant wire mesh with smaller and denser apertures is welded in the through hole area of the rigid framework, that is, the fastening member through hole 101. The setting of the wire mesh reduces the impact force when the downward flowing water around the pier foundation passes through the wire mesh. At the same time, the elasticity and impact resistance of the annular basket net can effectively slow down and dissipate the energy of the downward flowing water, reduce the scouring effect of the horseshoe vortex around the pier and the wake vortex behind the pier, so as to effectively protect the local scouring of the pier.

[0038] In the river basins with larger gravel particle sizes, the aperture of the wire mesh can be appropriately larger; in the river basins with smaller gravel particle sizes, the aperture of the wire mesh can be appropriately smaller.

[0039] At least two fastening member lifting rings 102 are also arranged at intervals on the outer wall of the fastening member 1. The fastening member lifting rings 102 can be connected with steel cables. By connecting the steel cables to the fastening member lifting rings 102, the fastening member 1 can be put into the water or fished out of the water.

[0040] The impact plate 2 is a flat plate or an L-shaped plate, and an impact plate lifting ring 201 is provided on the impact plate 2. The impact plate lifting ring 201 is arranged at the top of the impact plate 2. Specifically, when the impact plate 2 is a flat plate, the impact plate 2 can be a sector plate or a rectangular plate. When the impact plate 2 is a sector plate, the impact plate 2 includes two right-angle sides and an arc side, and the impact plate lifting ring 201 is provided on the arc side of the impact plate 2. When the impact plate 2 is a rectangular plate, the impact plate lifting ring 201 is arranged on the straight edge at the top of the impact plate 2. The impact plate 2 is the main structure subjected to the impact of water flow. The impact plate lifting ring 201 is used to be connected with a steel cable, so that the steel cable connects the impact plate 2 to be dragged out of the water surface or sink under the water surface. When the impact plate 2 is an L-shaped plate, the short side of the impact plate 2 is the positioning piece, and an impact plate fixing hole 202 is arranged in the positioning piece.

[0041] The impact plate 2 is arranged on the fastening member 1, and the plane of the impact plate 2 intersects with the plane of the fastening member 1. Specifically, the angle between the plane of the impact plate 2 on the water-facing side and the plane of the fastening member 1 is 30°-90°.

[0042] The fastening member 1 is provided with an impact plate fixing assembly 3 , and the impact plate 2 is arranged on the fastening member 1 through the impact plate fixing assembly 3 .

[0043] The impact plate fixing assembly 3 has two structures, which are respectively adapted to the two structures of the impact plate 2 .

[0044] Example 1

[0045] When the impact plate 2 is a flat plate, the impact plate fixing assembly 3 includes a support plate 301 and a protective plate 302. The support plate 301 is arranged in the middle of the fastener through hole 101. When the impact plate 2 is arranged on the support plate 301, the outer side of the impact plate 2 is located downstream of the inner side of the impact plate 2. Therefore, when the fastener 1 is placed underwater, the angle a between the direction of the water flow and the plane of the impact plate 2 is an acute angle. As a result, when the water flow impacts the impact plate 2, the two impact plates 2 can be squeezed toward each other. The support plate 301 is welded to the fastener 1 or integrally formed with the fastener. The support plate 301 is a solid steel plate.

[0046] The support plate 301 has a groove in the middle. The groove is wider than the width of the impact plate 2, and the impact plate 2 can be placed in the groove. The angle between the plane of the groove and the plane of the fastener 1 is 30°-90°, so that the angle between the plane of the impact plate 2 and the plane of the fastener 1 is also 30°-90°.

[0047] Protective plates 302 are provided on both sides of the groove. There are at least two protective plates 302. The two protective plates 302 are arranged on the support plate 301 at intervals. Specifically, the two protective plates 302 can be hollow frame structures. The height of the protective plates 302 matches the height of the impacted plate 2. The protective plates 302 are connected to the support plate 301 by bolts or welding. When the impacted plate 2 is inserted into the groove, the two protective plates 302 can support the impacted plate 2 to prevent the impacted plate 2 from being knocked down by water.

[0048] Example 2

[0049] When the impact plate 2 is an L-shaped plate, the impact plate fixing assembly 3 includes a support plate 301, a hinge 303, and an R-shaped elastic pin 304. One side of the impact plate 2 is hinged to the support plate 301, and the other side of the impact plate 2 extends laterally to form a positioning piece. The impact plate fixing hole 202 is provided in the positioning piece of the impact plate 2, and the positioning piece is fixed to the support plate 301 via the elastic pin 304.

[0050] The support plate 301 is arranged in the middle of the through hole 101 of the fastening part. When the impact-receiving plate 2 is arranged on the support plate 301, the outer side of the impact-receiving plate 2 is located downstream of the inner side of the impact-receiving plate 2. Thus, when the fastening part 1 is placed underwater, the included angle α between the direction of the water flow and the plane where the impact-receiving plate 2 is located is an acute angle. Furthermore, when the water flow impacts the impact-receiving plate 2, the two impact-receiving plates 2 can be squeezed towards the middle. The support plate 301 is welded to the fastening part 1 or integrally formed with the fastening part 1, and the support plate 301 is a solid steel plate.

[0051] The thickness of the support plate 301 is less than the thickness of the fastening part 1. The support plate 301 is provided with a through hole of the support plate. The fixing holes 202 of the impact-receiving plate on the positioning piece of the impact-receiving plate 2 correspond to the through hole of the support plate 301 on the support plate 301. The impact-receiving plate 2 and the support plate 301 are connected by an R-shaped elastic pin 304 passing through the fixing hole 202 of the impact-receiving plate and the through hole of the support plate in sequence.

[0052] The isolation assembly 4 is arranged at the free ends of the two fastening parts 1, and the isolation assembly 4 can lock the free ends of the two fastening parts 1 together.

[0053] The isolation assembly 4 includes a magnetic partition 401, a threaded sleeve 403 and a threaded rod 402. There are two magnetic partitions 401. The two magnetic partitions 401 are respectively connected to the free ends of the two fastening parts 1. The magnetic partition 401 is a permanent magnet, and the magnetic partition 401 can be adsorbed to the fastening part 1 through magnetism. There are two threaded rods 402 and one threaded sleeve 403. The two threaded rods 402 are respectively located at both ends of the threaded sleeve 403, and both ends of the threaded sleeve 403 are respectively connected to a magnetic partition 401 through a threaded rod 402. The threaded rod 402 and the magnetic partition 401 are connected together by bolts or by welding.

[0054] The external thread directions on the two threaded rods 402 are opposite, and internal threads matching the external threads on the two threaded rods 402 are respectively arranged at both ends inside the threaded sleeve 403.

[0055] When the threaded sleeve 403 is rotated clockwise, the two threaded rods 402 both move towards the middle, and the distance between the two magnetic partitions 401 is shortened; when the threaded sleeve 403 is rotated counterclockwise, the two threaded rods 402 move towards both ends respectively, and the distance between the two magnetic partitions 401 is lengthened. Different distances between the two magnetic partitions 401 can adapt to piers with different outer diameters.

[0056] Hoisting rings are arranged at the tops of the two magnetic partitions 401. The magnetic partitions 401 are connected to steel cables through the hoisting rings, so that the magnetic partitions 401 can be pulled out of the water surface through the steel cables.

[0057] The isolation component 4 only functions during the process of installing and fixing the fastening member 1 to the bridge pier and is not a part of the fastening member 1. The presence of the isolation component 4 makes the inner diameters of the two fastening members 1 greater than the diameter of the bridge pier body even when they are closed. Thus, before the magnetic partition 401 is withdrawn, the two fastening members 1 cannot be fixed to the bridge pier. When positioned at the required depth and the magnetic partition 401 is withdrawn, the inner circles of the two fastening members 1 can adhere to the outer wall of the bridge pier body, thereby being fixed to the bridge pier.

[0058] The prefabricated bridge pier protection ring based on water flow driven self-locking of the present invention further includes guide plates 5. There are two guide plates 5, and the two guide plates 5 are respectively arranged at the free ends of the two fastening members 1. The guide plates 5 can be arranged on the outer side of the free ends of the fastening members 1 or at the bottom of the free ends of the fastening members 1. The guide plates 5 are used to maintain the direction of the entire prefabricated bridge pier protection ring based on water flow driven self-locking.

[0059] The following refers to Figures 1 - 8 Describe in detail the working process of the prefabricated bridge pier protection ring based on water flow driven self-locking.

[0060] The working process of the above-mentioned Embodiment 1:

[0061] First, before entering the water, the two connected fastening members 1 are sleeved on the bridge pier, and the two impact plates 2 are respectively inserted into the two protection plates 302. Then, the isolation component 4 is placed between the free ends of the two fastening members 1. The two magnetic partitions 401 of the isolation component 4 are respectively connected to the free ends of the two fastening members 1. Rotate the threaded sleeve 403 to make the inner diameter of the circle formed by the two fastening members 1 and the isolation component 4 greater than the outer diameter of the cross-section of the bridge pier, so that the two fastening members 1 cannot be fixed on the pier even when they are closed. Carefully check the installation of each component. After confirming that there is no error, slowly lower the steel cables connecting the fastening member 1, the magnetic partition 401, and the impact plate 2. The fastening member 1 sinks underwater under its own weight. When it sinks to the predetermined working depth, the magnetic partition 401 is withdrawn. After the magnetic partition 401, the threaded rod 402, and the threaded sleeve 403 are withdrawn, the semi-circular arcs on the inner sides of the two fastening members 1 can adhere to the outer wall of the bridge pier body. The fastening member 1 and the impact plate 2 are self-locked under the impact of water flow and fixed to the bridge pier through friction, thereby achieving the purpose of reducing the energy of the incoming water flow and protecting the bridge pier foundation.

[0062] When a certain component of the prefabricated bridge pier protection ring based on water flow driven self-locking of the present invention is damaged or needs maintenance or recycling of the prefabricated bridge pier protection ring based on water flow driven self-locking, the impact plate 2 is withdrawn through the steel cable. At this time, the force acting on the free end of the fastening member disappears. Through the rotation of the movable hinge, the two fastening members 1 are separated from the bridge pier, and the fastening member 1 can be towed out of the water for recycling through the steel cable for maintenance and replacement.

[0063] The working process of the above-mentioned Embodiment 2:

[0064] First, before entering the water, put the two connected fastening components 1 on the bridge pier, and fix the positioning pieces of the two impact plates 2 on the support plate 301 respectively through R-shaped elastic pins 304. Then, place the isolation component 4 between the free ends of the two fastening components 1. The two magnetic partitions 401 of the isolation component 4 are respectively connected to the free ends of the two fastening components 1. Rotate the threaded sleeve 403 to make the inner diameter of the circle formed by the two fastening components 1 and the isolation component 4 larger than the outer diameter of the cross-section of the bridge pier, so that the two fastening components 1 cannot be fixed on the pier even when closed. Carefully check the installation situation between each component. After confirming that there is no error, slowly lower the steel cable connecting the fastening component 1, the magnetic partition 401 and the R-shaped elastic pin 304. The fastening component 1 sinks continuously underwater under its own weight. When it sinks to the predetermined working depth, pull out the two magnetic partitions 401. After the magnetic partition 401 is pulled out together with the threaded rod 4042 and the threaded sleeve 403, the semi-circular arcs of the two fastening components 1 can be attached to the outer wall of the bridge pier. The fastening component 1 and the impact plate 2 are self-locked under the impact of the water flow and fixed on the bridge pier through friction, so as to achieve the purpose of reducing the speed and dissipating the energy of the incoming water flow and protecting the bridge pier foundation.

[0065] When a certain component of the assembled bridge pier protection ring based on water flow-driven self-locking of the present invention is damaged or needs maintenance or recycling of the assembled bridge pier protection ring based on water flow-driven self-locking, pull out the R-shaped elastic pin 304 through the steel cable. The impact plate 2 falls to one side of the hinge 303 under the action of the water flow. At this time, the force acting on the free end of the fastening component disappears. The two fastening components 1 are separated from the bridge pier by the rotation of the movable hinge, and the fastening component 1 can be towed out of the water surface for maintenance and replacement through the steel cable.

[0066] For the adjustment of the layout position of the assembled bridge pier protection ring based on water flow-driven self-locking of the present invention, it can be determined according to the change of the riverbed morphology or the scouring degree at the bridge site. When the water flow with a large scouring force has a large descending depth, the assembled bridge pier protection ring based on water flow-driven self-locking can be appropriately close to the riverbed; when the scouring water flow moves upward, the working distance can be appropriately increased, and the assembled bridge pier protection ring based on water flow-driven self-locking is far from the riverbed.

[0067] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0068] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the scope of protection of the present invention.

Claims

1. An assembled pier guard ring based on water flow-driven self-locking, characterized in that, Comprising: Two fastening members, the upstream ends of the two fastening members are hinged, the downstream ends of the two fastening members are both free ends, and the two fastening members can enclose a circle. A guide plate is provided at the free end of the fastening member; the inner side of the fastening member is a semi-circular arc, and the two semi-circular arcs form a circle. A fastening member through-hole is longitudinally provided through the fastening member, and a protective net is provided in the fastening member through-hole; Two impact-receiving plates, the two impact-receiving plates are respectively arranged on the two fastening members, and the plane where the impact-receiving plate is located intersects with the plane where the fastening member is located; An impact-receiving plate fixing assembly is provided in the fastening member, and the impact-receiving plate is arranged on the fastening member through the impact-receiving plate fixing assembly; the impact-receiving plate fixing assembly includes a support plate, and the support plate is arranged in the middle of the fastening member through-hole; the width of the support plate is greater than the width of the impact-receiving plate, and the impact-receiving plate is arranged on the fastening member through the support plate; the impact-receiving plate fixing assembly further includes a protective plate, there are two protective plates, and the two protective plates are spaced apart and arranged on the support plate, and the impact-receiving plate can be inserted between the two protective plates.

2. The prefabricated pier protective ring based on water flow-driven self-locking according to claim 1, characterized in that The impact-receiving plate fixing assembly further includes a hinge, one side of the impact-receiving plate is arranged on the support plate through the hinge, and the other side of the impact-receiving plate extends horizontally to form a positioning piece, and the positioning piece is arranged on the support plate through an elastic pin shaft.

3. The prefabricated pier guardrail based on water flow driven self-locking according to claim 1, characterized in that Further including an isolation assembly, the isolation assembly is arranged between the free ends of the two fastening members, and the isolation assembly includes a magnetic partition, there are two magnetic partitions, and the two magnetic partitions are respectively connected to the free ends of the two fastening members.

4. The prefabricated pier guardrail based on water flow driven self-locking according to claim 3, characterized in that The isolation assembly further includes a threaded sleeve and a threaded rod, there are two threaded rods, the two ends of the threaded sleeve are respectively matched with the two threaded rods, the threaded sleeve and the threaded rod are located between the two magnetic partitions, and the two ends of the threaded sleeve are respectively connected to a magnetic partition through a threaded rod.

5. The assembled pier retaining ring based on water flow-driven self-locking according to claim 4, characterized in that, The external thread directions on the two threaded rods are opposite, and internal threads matching the external threads on the two threaded rods are respectively provided at both ends inside the threaded sleeve.

Images