Detachable and reusable pier local scour protection mounting structure

Abstract

The utility model discloses a detachable and reusable bridge pier local scour protection mounting structure, which belongs to the technical field of bridge pier local protection and comprises a bridge pier body, a connecting mechanism is clamped at the bottom of the surface of the bridge pier body, and a counterweight mechanism is arranged on the inner side of the connecting mechanism. A plurality of protective plates are fixedly connected to the surface of the connecting mechanism, anti-collision frames are welded to the two sides of each protective plate, the connecting mechanism is designed in a split mode, when the protective structures need to be disassembled for maintenance or reused, the connecting mechanisms are separated, the construction difficulty and workload can be effectively reduced, and the construction efficiency is improved. The counterweight mechanism can better balance the influence of water flow acting force on the pier, the capability of the protection structure for dealing with local scouring in different water flow environments is improved, the stability of the pier is guaranteed, and the service life of the pier is prolonged. The anti-scouring and anti-impact capacities of the protection mounting structure and the pier under the complex water flow condition are integrally improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge pier local protection technical field, in particular to a kind of detachable bridge pier local scour protection installation structure of reutilization. BACKGROUND

[0002] Scour is the natural phenomenon caused by the erosion of water flow to riverbed, which can be divided into general scour, natural evolution scour and local scour, among which local scour is usually considered as the main reason for bridge damage, local scour can take away the silt around the pier, resulting in the decline of pier stability, when the foundation of the lower part of the pier is exposed to a certain extent, it may lead to the consequences of pier tilting or even bridge collapse, therefore, the protection of local scour of bridge pier is crucial for the safe operation of bridge.

[0003] The existing bridge pier local scour protection structure faces the problem of secondary scour and the elevation drop of riprap protection surface, which needs regular maintenance and has low protection efficiency;

[0004] The existing patent (publication number: CN217438696U) discloses a bridge pier protection device, which is less affected by water flow direction, can adapt to real-time changes in bed surface, provides real-time local scour protection for bridge piers, has good protection effect, strong adaptability, is not prone to failure, and has low structure cost, which comprises a rigid body and a flexible body, wherein the rigid body is sleeved around the bridge pier, the rigid body is in the form of a thin shell structure of a rotating parabolic surface, the flexible body is sleeved around the rigid body, the flexible body is formed into a circular ring structure by splicing a plurality of unit plates, and the periphery of the flexible body is provided with an edge.

[0005] To solve the above problems, the existing patent provides a solution, but it lacks a structure for reusing the bridge pier local scour protection structure after disassembly and maintenance, which results in the entire protection structure being discarded when the protection structure needs to be replaced and maintained due to local damage or aging caused by water scouring, debris impact, etc., thereby increasing the construction and maintenance cost of the bridge.

[0006] Therefore, a detachable bridge pier local scour protection installation structure for reutilization is proposed. UTILITY MODEL CONTENTS

[0007] The utility model aims to provide a detachable bridge pier local scour protection installation structure for reutilization, which can solve the problem that the existing bridge pier local protection lacks a structure for reusing the bridge pier local scour protection structure after disassembly and maintenance, which results in the entire protection structure being discarded when the protection structure needs to be replaced and maintained due to local damage or aging caused by water scouring, debris impact, etc., thereby increasing the construction and maintenance cost of the bridge.

[0008] In order to achieve the above object, the utility model provides the following technical scheme: A detachable and reusable pier local scour protection installation structure, including the pier body, the bottom of the surface of the pier body is connected with the connecting mechanism, the inside of the connecting mechanism is equipped with the counterweight mechanism, a plurality of protection plates are fixedly connected on the surface of the connecting mechanism, crashproof frames are welded on the both sides of the protection plates,

[0009] The connecting mechanism includes a left protection shell, a right protection shell, a clamping block, a clamping groove, a connecting hole, a connecting rod and a nut, the left protection shell is clamped at the bottom of the left side of the surface of the pier body, the right protection shell is clamped at the bottom of the right side of the surface of the pier body, the clamping block is fixedly connected on the both sides of the bottom of the left protection shell, the clamping groove is arranged on the both sides of the bottom of the right protection shell, the connecting hole is arranged on the both sides of the right protection shell, the connecting rod is welded on the top of the clamping block, the connecting hole and the connecting rod are used in cooperation, and the nut is screwed on the top of the connecting rod.

[0010] Preferably, the counterweight mechanism includes a plurality of sliding grooves, sliding blocks, left clamping rings, right clamping rings, supporting blocks, rotating rods, telescopic rods and reinforcing blocks, and the sliding grooves are arranged on the inner sides of the left and right protection shells respectively.

[0011] Preferably, the sliding blocks are slidingly connected on the inner sides of the sliding grooves, the left clamping ring is clamped at the bottom of the left side of the surface of the pier body, the right clamping ring is clamped at the bottom of the right side of the surface of the pier body, and the supporting blocks are fixedly connected on the surfaces of the left clamping ring, the right clamping ring and the sliding blocks respectively.

[0012] Preferably, the rotating rod is rotatably connected on the surface of the supporting block, the telescopic rod is fixedly connected on the surface of the rotating rod, and the reinforcing blocks are fixedly connected on the bottoms of the left clamping ring and the right clamping ring respectively.

[0013] Preferably, the inner sides of the protection plates and the crashproof frames are filled with stone blocks, and the surfaces of the protection plates and the crashproof frames are coated with anticorrosive paint.

[0014] Preferably, the inner sides of the left and right protection shells are slidingly connected with covers, and the top of the cover is fixedly connected with a handle.

[0015] Preferably, the inner walls of the left and right clamping rings are engraved with anti-skid lines, and the surfaces of the left and right clamping rings are coated with anticorrosive paint.

[0016] Preferably, the bottom of the reinforcing block is fixedly connected with a buffer pad, and the buffer pad is made of rubber material.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1、The connecting mechanism adopts a split design, when it is necessary to disassemble and maintain the protective structure or reuse, the connecting mechanism is separated, which can effectively reduce the construction difficulty and workload, and the protective installation structure can be reused many times;

[0019] 2、The counterweight mechanism can better balance the influence of water flow force on the pier, improve the ability of the protective structure to cope with local scour in different water flow environments, ensure the stability of the pier, and overall improve the anti-scour and impact resistance of the protective installation structure and the pier in complex water flow conditions. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure diagram of the detachable and reusable pier local scour protection installation structure of the utility model;

[0021] Figure 2 It is an exploded view of the connecting mechanism of the utility model;

[0022] Figure 3 It is a structure schematic view of the left clamping ring of the utility model;

[0023] Figure 4 It is a structure schematic view of the right clamping ring of the utility model; Figure 3 It is an enlarged schematic view of A in the utility model;

[0024] Figure 5 It is a structure schematic view of the anti-collision frame of the utility model.

[0025] In the figure, 1, pier body; 2, connecting mechanism; 21, left protective shell; 22, right protective shell; 23, clamping block; 24, clamping groove; 25, connecting hole; 26, connecting rod; 27, nut; 3, counterweight mechanism; 31, sliding groove; 32, sliding block; 33, left clamping ring; 34, right clamping ring; 35, supporting block; 36, rotating rod; 37, telescopic rod; 38, reinforcing block; 4, protective plate; 5, anti-collision frame; 6, cover; 7, handle; 8, buffer pad. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] Please refer to Figures 1-5 The utility model provides technical schemes:

[0028] The application discloses a detachable and reusable pier local scour protection mounting structure.

[0029] The connecting mechanism 2 comprises a left protection shell 21, a right protection shell 22, a clamping block 23, a clamping groove 24, a connecting hole 25, a connecting rod 26 and a nut 27; the left protection shell 21 is clamped at the bottom of the left side of the surface of the pier body 1; the right protection shell 22 is clamped at the bottom of the right side of the surface of the pier body 1; the clamping block 23 is fixedly connected to the two sides of the bottom of the left protection shell 21; the clamping groove 24 is formed in the two sides of the bottom of the right protection shell 22; the connecting hole 25 is formed in the two sides of the right protection shell 22; the connecting rod 26 is welded to the top of the clamping block 23; the connecting hole 25 and the connecting rod 26 are used in cooperation; and the nut 27 is threadedly connected to the top of the connecting rod 26.

[0030] In the embodiment: by setting the pier body 1 as an important support part of the whole bridge structure, bearing various loads transmitted from the bridge superstructure, such as vehicle load, pedestrian load and self gravity, etc., a solid foundation guarantee is provided for the stable existence of the bridge, the guard plate 4 can block the direct impact of the water flow on the pier body 1, change the flow path and energy distribution of the water flow, effectively reduce the scouring force of the water flow on the surface of the pier, the anti-collision frame 5 can block the direct impact of the water flow on the pier body 1, and can prevent the floating objects from directly impacting the guard plate 4 and the pier body 1 to cause damage, the left protective shell 21 covers the corresponding part of the pier, can protect the left side of the pier body 1, and can support and limit the clamping block 23 and the counterweight mechanism 3, the right protective shell 22 corresponds to the left protective shell 21, is clamped at the bottom of the right side of the surface of the pier body 1, and the two together form a complete protective shell around the bottom of the pier, which plays a comprehensive protection role on the pier from both sides, and can support and limit the clamping groove 24, the connecting hole 25 and the counterweight mechanism 3, the clamping block 23 can be accurately inserted into the clamping groove 24 to realize the rapid preliminary positioning connection between the left and right protective shells 22, the clamping groove 24 can limit the clamping block 23, which facilitates the user to preliminarily connect the left and right protective shells 22, the connecting hole 25 provides a passage for the connecting rod 26 to pass through, so that the connecting rod 26 can extend from the bottom of the left protective shell 21 to the top of the right protective shell 22, increasing the stability of the connection between the left and right protective shells 22, after the connecting rod 26 passes through the connecting hole 25 on the right protective shell 22, it is tightly connected with the left protective shell 21 and the right protective shell 22 by cooperating with the nut 27, the nut 27 can generate an axial tension on the connecting rod 26, tightly pressing the left protective shell 21 and the right protective shell 22 together to realize the fastening connection, when it is necessary to disassemble the protective structure, the user only needs to reversely rotate the nut 27 with a corresponding tool to easily loosen and remove the nut 27, which is convenient to operate.

[0031] Specifically, as shown in Figure 3 , the counterweight mechanism 3 comprises a plurality of sliding grooves 31, sliding blocks 32, left clamping rings 33, right clamping rings 34, supporting blocks 35, rotating rods 36, telescopic rods 37 and reinforcing blocks 38, and the sliding grooves 31 are respectively arranged on the inner sides of the left protective shell 21 and the right protective shell 22.

[0032] Specifically, as shown in Figure 3 , Figure 4 , the sliding block 32 is slidingly connected to the inner side of the sliding groove 31, the left clamping ring 33 is clamped at the bottom of the left side of the surface of the pier body 1, the right clamping ring 34 is clamped at the bottom of the right side of the surface of the pier body 1, and the supporting block 35 is fixedly connected to the surfaces of the left clamping ring 33, the right clamping ring 34 and the sliding block 32.

[0033] Specifically, as shown in Figure 4As shown in the figure, the rotating rod 36 is rotatably connected to the surface of the supporting block 35, the telescopic rod 37 is fixedly connected to the surface of the rotating rod 36, and the reinforcing block 38 is fixedly connected to the bottom of the left clamping ring 33 and the right clamping ring 34, respectively.

[0034] In this embodiment: by setting the sliding chute 31 to provide a precise guide path for the sliding of the sliding block 32, the sliding block 32 can move smoothly in a predetermined direction. The sliding block 32 can drive the clamping ring, the right clamping ring 34, the supporting block 35, the rotating rod 36, the telescopic rod 37 and the reinforcing block 38 to move to the bottom of the inside of the left and right protective shells 22, so that the reinforcing block 38 is flush with the bottom of the inside of the left and right protective shells 22, preventing water from entering the inside of the connecting mechanism 2 and the counterweight mechanism 3. The left clamping ring 33 is in direct contact with the pier, increasing the contact area between the protective structure and the pier. The right clamping ring 34 corresponds to the left clamping ring 33, and the two together surround the bottom of the pier, forming a more comprehensive support and counterweight system for the pier. The supporting block 35 can support and limit the rotating rod 36. The rotating rod 36 can make the two ends of the telescopic rod 37 extend and rotate inside the supporting block 35. The telescopic rod 37 can extend and rotate when the left and right clamping rings 34 drive the reinforcing block 38 to move downward. The reinforcing block 38 can prevent water from entering the inside of the counterweight mechanism 3 and the connecting mechanism 2, and can increase the structural strength of the left and right protective shells 22.

[0035] Specifically, as shown in the figure, Figure 5 The inside of the protective plate 4 and the impact frame 5 is filled with stone, and the surface of the protective plate 4 and the impact frame 5 is coated with anti-corrosion paint.

[0036] Specifically, as shown in the figure, Figure 5 The inside of the left protective shell 21 and the right protective shell 22 is slidingly connected with the cover 6, and the top of the cover 6 is fixedly connected with the handle 7.

[0037] In this embodiment: by setting the inside of the protective plate 4 and the impact frame 5 to be filled with stone, the weight and structural strength of the protective plate 4 itself are increased after being filled with stone inside, so that it can better resist the impact force of the water flow and stand more stably around the pier. By setting the anti-corrosion paint, the water, air and corrosive substances contained in the water outside can be prevented from directly contacting the protective plate 4 itself, slowing down the corrosion speed of metal or other easily corroded materials. By setting the cover 6, the inside space of the left protective shell 21 and the right protective shell 22 can be flexibly closed or opened according to actual needs, playing a role in isolating the outside environment from the inside of the protective structure, effectively blocking water, sediment and floating objects from entering the inside. By setting the handle 7, a convenient force application site is provided for construction personnel, facilitating easy sliding operation of the cover 6.

[0038] Specifically, as shown in the figure, Figure 3As shown, the inner walls of the left clamping ring 33 and the right clamping ring 34 are engraved with anti-skid lines, and the surfaces of the left clamping ring 33 and the right clamping ring 34 are coated with anti-corrosion paint.

[0039] Specifically, as shown in the drawings, the bottom of the reinforcing block 38 is fixedly connected with a buffer pad 8 made of rubber material. Figure 3

[0040] In this embodiment: by setting the anti-skid lines, the friction with the surface of the pier body 1 is increased, so that the left clamping ring 33 and the right clamping ring 34 can be more stable when clamped on the pier, and are not easy to slide relatively due to water flow impact or other external forces; by setting the anti-corrosion paint, the oxygen, salt and other corrosive components in the water are prevented from contacting the metal material of the clamping ring; by setting the buffer pad 8, when the reinforcing block 38 is subjected to the reaction force from the riverbed below or the pressure generated by the gravity of the protection structure and other factors, the buffer pad 8 can effectively absorb and buffer these external forces; by setting the buffer pad 8 to be made of rubber material, the rubber material has good elasticity and buffering performance.

[0041] ​Working principle: first, the user will be left protective shell 21 near the pier body 1, make left protective shell 21 and the left side surface of the pier body 1 contact, in the process, the left card ring 33 will be synchronized with the left side of the pier body 1 surface natural fit, realize the preliminary positioning docking, then, the user picks up the right protective shell 22, carefully aligns the connecting hole 25 on both sides of the right protective shell 22 with the corresponding connecting rod 26 on the left protective shell 21, then, along the direction of connecting rod 26 downward, the user uses nut 27 along the top of connecting rod 26 for screw connection, and gradually tightens the nut 27, through the axial tension generated by the nut 27, the left protective shell 21 and the right protective shell 22 are tightly fixed together, so as to form a stable overall connection structure, after the left and right protective shell 22 is successfully fixed, the user manually pushes the left and right card ring 33 and 34, so that they move slowly along the surface of the pier body 1 to the bottom, in this moving process, because the left and right card ring 33, 34 are connected with other parts through support block 35, rotating rod 36 and telescopic rod 37, when the left and right card ring 34 moves, it will drive the rotating rod 36 to rotate around its connecting point with the support block 35, thereby prompting the telescopic rod 37 to make corresponding action, its two ends will gradually change the angle and realize the length extension with the rotation, with the extension of telescopic rod 37, it will drive the reinforcing block 38 to move synchronously, so that the reinforcing block 38 gradually travels to the bottom of the left and right protective shell 22 inside, until the reinforcing block 38 moves to the same plane with the bottom of the left and right protective shell 22, reaches the flush state, at this time, the whole connecting mechanism 2 and the counterweight mechanism 3 complete the assembly and are in stable working state, and the protective plate 4 fixed on the surface of the connecting mechanism 2 and the anti-collision frame 5 welded on both sides of the protective plate 4 are also in place, which can effectively protect the water flow, finally, after a period of use, when the protective structure needs to be maintained or is removed for other reasons, the user uses tools to loosen and remove the nut 27, releases the fastening connection between the left and right protective shell 22, then pulls out the right protective shell 22 along the connecting rod 26 upwards, so that it is separated from the left protective shell 21, and finally the left and right protective shell 22 are taken off from the pier body 1 respectively, the separation operation of the whole protective structure and the pier body 1 is completed, so as to check, repair, maintain the protective structure or reuse it in other suitable pier protection projects.

[0042] The above is only the preferred embodiment of the present application, and is not intended to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A detachable and reusable pier local scour protection installation structure comprising a pier body (1), characterized by: The bottom of the surface of the pier body (1) is clamped with a connecting mechanism (2), the inner side of the connecting mechanism (2) is provided with a counterweight mechanism (3), the surface of the connecting mechanism (2) is fixedly connected with a plurality of protective plates (4), the two sides of the protective plate (4) are welded with an anti-collision frame (5); The connecting mechanism (2) comprises a left protective shell (21), a right protective shell (22), a clamping block (23), a clamping groove (24), a connecting hole (25), a connecting rod (26) and a nut (27), the left protective shell (21) is clamped on the bottom of the left side of the surface of the pier body (1), the right protective shell (22) is clamped on the bottom of the right side of the surface of the pier body (1), the clamping block (23) is fixedly connected on the both sides of the bottom of the left protective shell (21), the clamping groove (24) is arranged on the both sides of the bottom of the right protective shell (22), the connecting hole (25) is arranged on the both sides of the right protective shell (22), the connecting rod (26) is welded on the top of the clamping block (23), the connecting hole (25) and the connecting rod (26) are used in cooperation, and the nut (27) is threadedly connected on the top of the connecting rod (26).

2. A demountable and reusable pier local scour protection installation structure according to claim 1, characterized in that: The counterweight mechanism (3) comprises a plurality of sliding grooves (31), sliding blocks (32), left clamping rings (33), right clamping rings (34), supporting blocks (35), rotating rods (36), telescopic rods (37) and reinforcing blocks (38), and the sliding grooves (31) are respectively arranged on the inner sides of the left protective shell (21) and the right protective shell (22).

3. A demountable and reusable pier local scour protection installation structure according to claim 2, characterized in that: The sliding block (32) is slidably connected to the inner side of the sliding groove (31), the left clamping ring (33) is clamped on the bottom of the left side of the surface of the pier body (1), the right clamping ring (34) is clamped on the bottom of the right side of the surface of the pier body (1), and the supporting block (35) is fixedly connected to the surface of the left clamping ring (33), the right clamping ring (34) and the sliding block (32) respectively.

4. A demountable and reusable pier local scour protection installation structure according to claim 2, characterized in that: The rotating rod (36) is rotatably connected to the surface of the supporting block (35), the telescopic rod (37) is fixedly connected to the surface of the rotating rod (36), and the reinforcing block (38) is fixedly connected to the bottom of the left clamping ring (33) and the right clamping ring (34) respectively.

5. A demountable and reusable pier local scour protection installation structure according to claim 1, characterized in that: The inner sides of the protective plate (4) and the anti-collision frame (5) are filled with stone blocks, and the surfaces of the protective plate (4) and the anti-collision frame (5) are coated with anticorrosive paint.

6. A demountable and reusable pier local scour protection installation structure according to claim 1, characterized in that: The inner sides of the left protective shell (21) and the right protective shell (22) are slidably connected with a cover (6), and the top of the cover (6) is fixedly connected with a handle (7).

7. A demountable and reusable pier local scour protection installation structure according to claim 2, characterized in that: The inner walls of the left clamping ring (33) and the right clamping ring (34) are engraved with anti-skid lines, and the surfaces of the left clamping ring (33) and the right clamping ring (34) are coated with anticorrosive paint.

8. A demountable and reusable pier local scour protection installation structure according to claim 2, characterized in that: The bottom of the reinforcing block (38) is fixedly connected with a buffer pad (8), and the buffer pad (8) is made of rubber material.

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