Highway bridge pier protection device and mounting method thereof

Abstract

The invention relates to a highway bridge pier protection device and an installation method thereof, and relates to the technical field of pier protection, and the highway bridge pier protection device comprises two semi-ring bases which are symmetrically arranged and used for being arranged on the outer side of a pier column in a sleeving mode; the flexible protection blocks are arranged on the outer side of the pier column in a sleeving mode, the number of the flexible protection blocks is two, the flexible protection blocks correspond to the two semi-ring bases one to one, the flexible protection blocks are rotationally connected with the corresponding semi-ring bases, and the buffering force unloading mechanisms are arranged between the flexible protection blocks and the semi-ring bases and used for absorbing impact force generated by vehicle collision. And the flexible protection blocks are reset after rotating by a certain angle for unloading force, and the two flexible protection blocks are fixed at the same time. The protection device has the advantages that the protection device fully absorbs the impact force of the vehicle, the force unloading effect of the protection device is improved, and the safety of the running vehicle and people in the vehicle is improved.

Description

Technical Field

[0001] The present application relates to the technical field of bridge pier protection, and in particular to a highway bridge pier protection device and an installation method thereof. Background Art

[0002] Bridge piers are an important part of the bridge structure, usually composed of multiple piers. Their main function is to support the superstructure of the bridge, such as the bridge deck, beams and arches, and transfer the weight of these structures and the load passing through the bridge to the foundation.

[0003] At present, the bridge pier protection device is a structure used to protect the bridge pier from vehicle impact. It is mainly used to absorb and disperse the impact force to reduce the damage to the bridge pier. The existing bridge pier protection device usually includes a rigid anti-collision fence or a flexible anti-collision cover. Although the rigid anti-collision fence can effectively block the damage to the bridge pier, it is difficult to absorb the impact force of the vehicle and protect the safety of personnel and vehicles. In addition, the existing flexible anti-collision cover has limited deformation and poor force unloading effect, which is easy to cause damage to the flexible protective cover. Summary of the invention

[0004] In order to enable the protective device to fully absorb the impact force of the vehicle, improve the force unloading effect of the protective device, and improve the safety of the moving vehicle and the people inside the vehicle, the present application provides a highway bridge pier protective device and an installation method thereof.

[0005] The present application provides a highway bridge pier protection device and an installation method thereof, which adopts the following technical solutions: In a first aspect, the present application provides a highway bridge pier protection device, comprising: Two semi-ring bases are provided and arranged symmetrically, and are used for being mounted on the outside of the pier; The flexible protection block is sleeved on the outside of the pier column, and two of them are provided and correspond to the two semi-ring bases one by one. The flexible protection block is rotatably connected with the corresponding semi-ring base. The buffer unloading mechanism is arranged between the flexible protection block and the semi-ring base, and is used to absorb the impact force generated by the collision of the vehicle, and to rotate the flexible protection block to a certain angle to unload the force and then reset, while fixing the two flexible protection blocks.

[0006] By adopting the above technical scheme, when installing the protective device, firstly, the two semi-ring bases and the flexible protective block are symmetrically sleeved on the outside of the pier, and the semi-ring base is fixed on the pier, and then the two flexible protective blocks are fixed by the buffer unloading mechanism, so that the two flexible protective blocks are firmly fixed to form a whole, and the installation of the protective device is completed; when the vehicle accidentally hits the flexible protective block, the impact force is first transmitted to the flexible protective block, and part of the impact force is absorbed, and then the impact force is transmitted to the buffer unloading mechanism, and the buffer unloading mechanism further absorbs the impact force generated by the vehicle collision, and makes the flexible protective block rotate a certain angle to unload the force, so that the impact force is dispersed, the buffering effect is improved, and on the one hand, the flexible protective block is not easy to be damaged by excessive deformation, the reuse rate and service life of the flexible protective block are improved, and on the other hand, the direct impact on the bridge pier is reduced; when the collision event is over, the buffer unloading mechanism and the flexible protective block automatically return to the initial state, thereby reducing the frequency of maintenance and replacement of the protective device, saving maintenance costs and maintenance time.

[0007] Optionally, the buffer unloading mechanism includes: A buffer chamber is arranged inside the flexible protective block; A buffer assembly is arranged in the buffer chamber and is used to absorb and buffer the impact force generated by the collision of the vehicle. There are multiple buffer assemblies, which are evenly distributed along the circumferential direction. A rotating force unloading component is arranged between the semi-ring base and the flexible protection block, and is used to rotate the flexible protection block to a certain angle to unload the force and then reset; The locking assembly is arranged between the two flexible protection blocks and is used to fix the two flexible protection blocks.

[0008] By adopting the above technical solution, when a vehicle hits the flexible protection block, the impact force is first absorbed by the flexible protection block and the buffer assembly, and then the impact force is transmitted, and the rotating unloading assembly causes the flexible protection block to rotate a certain angle along the circumferential direction of the semi-ring base to further disperse and unload the force; after the impact event is over, the rotating unloading assembly causes the flexible protection block to automatically return to its initial position to prepare for the next protection; wherein the rotating unloading assembly causes the flexible protection block to rotate during impact, thereby changing the direction and path of the force, thereby improving the buffering effect while protecting the bridge pier structure.

[0009] Optionally, the buffer component includes: An inner support plate, detachably connected to the inner wall of the buffer chamber; An outer support plate is spaced apart from one side of the inner support plate and is detachably connected to the inner wall of the buffer chamber; The buffer spring is fixed between the inner support plate and the outer support plate. The buffer spring is always in a compressed state and gives the outer support plate a force to move away from the inner support plate.

[0010] By adopting the above technical solution, when a vehicle hits the flexible protective block, the outer support plate moves toward the inner support plate due to the impact force, and the movement of the outer support plate compresses the buffer spring, and the compression of the impact spring absorbs part of the impact energy; after the impact, the outer support plate and the connecting rod group restore their initial angles under the action of the elastic force of the buffer spring; the buffer spring can absorb the impact force generated by the vehicle collision, reduce the direct impact on the bridge pier, and adaptively reset under the elastic force of the buffer spring, reducing maintenance requirements.

[0011] Optionally, the buffer assembly further includes two connecting rod groups symmetrically arranged between the inner support plate and the outer support plate, each of the connecting rod groups includes a plurality of connecting rods arranged along the height direction, and both ends of the connecting rods are respectively hinged to the inner support plate and the outer support plate.

[0012] By adopting the above technical solution, when the outer support plate moves and compresses the buffer spring, the connecting rod group adjusts its angle and deforms accordingly to provide support and guidance for the buffer spring, making it difficult for the buffer spring to deflect laterally and the buffer spring to be damaged, thereby increasing its service life.

[0013] Optionally, the rotation unloading assembly includes: A lower support block is rotatably connected to the semi-ring base, and a plurality of lower support blocks are provided, and the plurality of lower support blocks are evenly distributed along the circumference of the semi-ring base; An upper support block is rotatably connected to the flexible protection block, and a plurality of upper support blocks are provided and correspond one to one with the plurality of lower support blocks; The damper is fixed between the lower support block and the corresponding upper support block. The damper is provided with a return spring. When the flexible protection block rotates, the return spring is in a stretched state.

[0014] By adopting the above technical solution, when the impact force is transmitted to the rotating unloading assembly, the upper support block is rotated relative to the lower support block by the impact force, and the rotation of the upper support block drives the damper to work. The damper absorbs energy through the internal medium, and the reset spring begins to stretch at the same time, further consuming the impact energy; after the impact, the reset spring drives the upper support block to return to its initial position under the action of elastic force, and the damper also returns to its initial state, and the rotating unloading assembly automatically resets to prepare for the next protection; wherein the rotating unloading assembly causes the flexible protection block to rotate during the impact, and by changing the direction and path of the force, the unloading effect is improved, thereby protecting the bridge pier structure and personnel safety, and the reset spring ensures that the upper support block and the lower support block can automatically reset after the impact, thereby reducing maintenance requirements.

[0015] Optionally, the locking assembly includes two locking blocks respectively fixed at both ends of the flexible protective block, the locking blocks on one side of the two flexible protective blocks are connected to each other and are staggered along the height direction, and the locking blocks are provided with locking holes along the height direction, a locking screw is provided in the locking hole, a nut is threadedly connected to the locking screw, and the locking screw is simultaneously inserted into the locking holes of the locking blocks on the same side of the two flexible protective blocks.

[0016] By adopting the above technical solution, when fixing the two flexible protection blocks through the locking assembly, it is only necessary to put the two flexible protection blocks onto the outside of the pier, align the locking holes of the locking blocks on the same side of the two flexible protection blocks, and then insert the locking screws into the locking holes of the two locking blocks and tighten them with nuts to lock the two flexible protection blocks, so that the two flexible protection blocks are not easily separated laterally; the locking assembly is simple and convenient to operate, which is convenient for daily inspection and maintenance, and when the protective device is aged and needs maintenance or replacement, the locking assembly can be quickly unlocked, which is convenient for the disassembly and installation of the flexible protection blocks.

[0017] Optionally, a cover plate is fixed on the locking screw, and the cover plate abuts against the top of the buffer chamber.

[0018] By adopting the above technical solution, the cover plate can, on the one hand, prevent external environmental factors (such as rain, dust, debris, etc.) from entering the buffer chamber, thereby protecting the buffer component and extending its service life; on the other hand, the cover plate makes the maintenance and replacement of the buffer component more convenient. When the buffer component needs to be inspected or replaced, only the cover plate needs to be removed to directly access the buffer component without disassembling the entire protective device, thereby improving maintenance efficiency.

[0019] Optionally, the semi-ring base is detachably connected to the pier, and a mounting groove is provided at the bottom of the flexible protective block, and a blocking component for blocking the mounting groove is provided on one side of the semi-ring base.

[0020] By adopting the above technical solution, the staff can easily fix or remove the semi-ring base through the installation groove. The sealing component is used to seal the installation groove to prevent external environmental factors (such as rain, dust, etc.) from entering the installation groove. When the semi-ring base needs to be maintained or replaced, the sealing component is removed to easily remove the semi-ring base.

[0021] Optionally, the blocking component includes: A plurality of blocking blocks are provided, and are used for sleeved onto the outside of the semi-ring base; The fixing rope is wound around the outside of multiple blocking blocks at the same time.

[0022] By adopting the above technical solution, multiple blocking blocks are sleeved onto the outside of the semi-ring base to completely block the installation groove between the semi-ring base and the flexible protective block to prevent the intrusion of external environmental factors. The fixing rope is wrapped around the outside of the multiple blocking blocks. By tightening the fixing rope, the blocking blocks are firmly fixed on the semi-ring base to prevent the blocking blocks from loosening or falling off due to external factors.

[0023] In a second aspect, the present application provides a method for installing a highway bridge pier protection device, which is applicable to the above-mentioned highway bridge pier protection device, and the installation steps are as follows: S1. Install two half-ring bases and flexible protective blocks symmetrically on the outside of the pier column. S2, fix the two flexible protection blocks by means of a buffer unloading mechanism, so that the two flexible protection blocks are firmly fixed to form a whole; S3, fix the semi-ring base on the pier through the mounting groove; S4. The installation groove is sealed by using a sealing component.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. When a vehicle accidentally hits the flexible protective block, the impact force is first transmitted to the flexible protective block, which absorbs part of the impact force, and then the impact force is transmitted to the buffer unloading mechanism, which further absorbs the impact force generated by the vehicle collision and rotates the flexible protective block to a certain angle to unload the force, so that the impact force is dispersed, improving the buffering effect, and on the one hand, making the flexible protective block less likely to be damaged by excessive deformation, thereby improving the reuse rate and service life of the flexible protective block, and on the other hand, reducing the direct impact on the bridge pier; when the collision event is over, the buffer unloading mechanism and the flexible protective block automatically return to the initial state, thereby reducing the frequency of maintenance and replacement of protective devices, saving maintenance costs and maintenance time; 2. When a vehicle hits the flexible protection block, the impact force is first absorbed by the flexible protection block and the buffer assembly, and then the impact force is transmitted, and the rotating force unloading assembly causes the flexible protection block to rotate a certain angle along the circumferential direction of the semi-ring base to further disperse and unload the force; after the impact event is over, the rotating force unloading assembly causes the flexible protection block to automatically return to its initial position to prepare for the next protection; wherein the rotating force unloading assembly causes the flexible protection block to rotate during the impact, thereby changing the direction and path of the force, thereby improving the buffering effect and protecting the bridge pier structure; 3. The buffer spring in the buffer assembly can absorb the impact force generated by the collision of the vehicle, reduce the direct impact on the bridge pier, and reset itself adaptively under the elastic force of the buffer spring, reducing the maintenance requirements; and when the movement of the outer support plate compresses the buffer spring, the connecting rod group adjusts the angle deformation accordingly to provide support and guidance for the buffer spring, making it difficult for the buffer spring to deflect laterally and the buffer spring to be damaged, thereby increasing the service life of the buffer spring; 4. The rotating unloading assembly makes the flexible protection block rotate when impacted, which improves the unloading effect by changing the direction and path of the force, protects the pier structure and personnel safety, and the reset spring ensures that the upper support block and the lower support block can automatically reset after impact, reducing maintenance requirements; 5. On the one hand, the cover can prevent external environmental factors (such as rain, dust, debris, etc.) from entering the buffer chamber, protect the buffer component and extend its service life; on the other hand, the cover makes the maintenance and replacement of the buffer component more convenient. When the buffer component needs to be inspected or replaced, just remove the cover to directly access the buffer component without disassembling the entire protective device, thereby improving maintenance efficiency; 6. The staff can fix or remove the semi-ring base through the installation groove. The blocking component is used to block the installation groove to prevent external environmental factors (such as rain, dust, etc.) from entering the installation groove. When the semi-ring base needs to be maintained or replaced, the blocking component can be removed to easily dismantle the semi-ring base. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the highway bridge pier protection device in this application; Figure 2 It is a schematic diagram showing the explosion structure of the pier protection device of the highway bridge; Figure 3 It is a schematic diagram of the explosion structure of the buffer unloading mechanism.

[0026] Explanation of the reference numerals: 1. semi-ring base; 2. flexible protective block; 21. mounting groove; 3. buffer unloading mechanism; 31. buffer chamber; 32. buffer assembly; 321. inner support plate; 322. outer support plate; 323. buffer spring; 324. connecting rod group; 33. rotation unloading assembly; 331. lower support block; 332. upper support block; 333. damper; 334. return spring; 34. locking assembly; 341. locking block; 3411. locking hole; 342. locking screw; 343. nut; 344. cover plate; 4. sealing assembly; 41. sealing block; 42. fixing rope. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0028] The present application embodiment discloses a highway bridge pier protection device. Figure 1 and Figure 2The highway bridge pier protection device includes two semi-ring bases 1 that are used to be sleeved on the outside of the pier and are symmetrically arranged. Exemplarily, the semi-ring base 1 is detachably connected to the pier through anchor bolts. Two flexible protective blocks 2 are sleeved on the outside of the pier. The two flexible protective blocks 2 correspond to the two semi-ring bases 1 one by one, and the flexible protective blocks 2 are rotatably connected to the corresponding semi-ring bases 1. A buffer unloading mechanism 3 is arranged between the flexible protective block 2 and the semi-ring base 1. The buffer unloading mechanism 3 is used to absorb the impact force generated by the collision of the vehicle, and to rotate the flexible protective block 2 to a certain angle to unload the force and reset it, while fixing the two flexible protective blocks 2. An installation groove 21 is provided at the bottom of the flexible protective block 2. The installation groove 21 is used to facilitate the staff to install the semi-ring base 1. A blocking component 4 for blocking the installation groove 21 is also provided on one side of the semi-ring base 1.

[0029] When installing the protective device, firstly, the two semi-ring bases 1 and the flexible protective blocks 2 are symmetrically mounted on the outside of the pier, and the semi-ring bases 1 are fixed by the mounting grooves 21. Then, the mounting grooves 21 are blocked by the blocking assembly 4 to prevent external environmental factors (such as rain, dust, etc.) from entering the mounting grooves 21. Subsequently, the two flexible protective blocks 2 are fixed by the buffer unloading mechanism 3 so that the two flexible protective blocks 2 are firmly fixed to form a whole, and the installation of the protective device is completed.

[0030] When a vehicle accidentally hits the flexible protective block 2, the impact force is first transmitted to the flexible protective block 2, and part of the impact force is absorbed. Then the impact force is transmitted to the buffer unloading mechanism 3, which further absorbs the impact force generated by the vehicle collision and causes the flexible protective block 2 to rotate a certain angle to unload the force, so that the impact force is dispersed and the buffering effect is improved. When the collision event is over, the buffer unloading mechanism 3 and the flexible protective block 2 automatically return to the initial state, wherein the buffer unloading mechanism 3, on the one hand, makes the flexible protective block 2 less likely to be damaged by excessive deformation, thereby improving the reuse rate and service life of the flexible protective block 2, and on the other hand, reduces the direct impact on the bridge pier.

[0031] In some embodiments, reference Figure 2 and Figure 3 The blocking assembly 4 includes a plurality of blocking blocks 41, preferably two, for being sleeved on the outside of the semi-ring base 1; the outsides of the two blocking blocks 41 are simultaneously wound around the fixing rope 42. The plurality of blocking blocks 41 are sleeved on the outside of the semi-ring base 1 to completely block the mounting groove 21 between the semi-ring base 1 and the flexible protective block 2 to prevent the intrusion of external environmental factors; the fixing rope 42 is wound around the outside of the plurality of blocking blocks 41, and by tightening the fixing rope 42, the blocking blocks 41 are firmly fixed on the semi-ring base 1 to prevent the blocking blocks 41 from loosening or falling off under the influence of external factors.

[0032] In some embodiments, reference Figure 2 and Figure 3The buffer unloading mechanism 3 includes a buffer chamber 31 disposed inside the flexible protective block 2. A plurality of buffer components 32 are disposed inside the buffer chamber 31. The plurality of buffer components 32 are evenly distributed along the circumferential direction. The buffer components 32 are used to absorb and buffer the impact force generated by the collision of the vehicle. A rotating unloading component 33 is disposed between the semi-ring base 1 and the flexible protective block 2. The rotating unloading component 33 is used to rotate the flexible protective block 2 to a certain angle to unload the force and then reset. A locking component 34 is disposed between the two flexible protective blocks 2. The locking component 34 is used to fix the two flexible protective blocks 2.

[0033] When a vehicle hits the flexible protection block 2, the impact force is first absorbed by the flexible protection block 2 and the buffer assembly 32, and then the impact force is transmitted, and the rotating unloading assembly 33 makes the flexible protection block 2 rotate a certain angle along the circumferential direction of the semi-ring base 1 to further disperse and unload the force, and by changing the direction and path of the force, the buffering effect is improved to protect the bridge pier structure and personnel safety. After the impact event is over, the rotating unloading assembly 33 makes the flexible protection block 2 automatically return to the initial position to prepare for the next protection.

[0034] For example, refer to Figure 2 The buffer assembly 32 includes an inner support plate 321 detachably connected to the inner wall of the buffer chamber 31 by bolts, and an outer support plate 322 is arranged at intervals on one side of the inner support plate 321, and the outer support plate 322 is also detachably connected to the inner wall of the buffer chamber 31 by bolts. A plurality of buffer springs 323 are fixed between the inner support plate 321 and the outer support plate 322, and the plurality of buffer springs 323 are arranged in the vertical direction, and the buffer springs 323 are always in a compressed state and give the outer support plate 322 a force away from the inner support plate 321. Two connecting rod groups 324 are arranged between the inner support plate 321 and the outer support plate 322, and the two connecting rod groups 324 are symmetrically arranged, and the buffer spring 323 is located between the two connecting rod groups 324, and each connecting rod group 324 includes a plurality of connecting rods arranged in the height direction, and the two ends of the connecting rods are respectively hinged to the inner support plate 321 and the outer support plate 322.

[0035] When the vehicle hits the flexible protective block 2, the outer support plate 322 is moved toward the inner support plate 321 by the impact force. The movement of the outer support plate 322 compresses the buffer spring 323, and the connecting rod group 324 adjusts its angle accordingly. The compression of the buffer spring 323 absorbs part of the impact energy. At the same time, the connecting rod group 324 deforms to provide support and guidance for the buffer spring 323, so that the buffer spring 323 is not easily deflected laterally. After the impact, the buffer spring 323 is restored to its initial angle by the elastic force of the outer support plate 322 and the connecting rod group 324. When the movement of the outer support plate 322 compresses the buffer spring 323, the connecting rod group 324 adjusts its angle accordingly and deforms to provide support and guidance for the buffer spring 323, so that the buffer spring 323 is not easily deflected laterally, thereby making the buffer spring 323 not easily damaged, thereby increasing the service life of the buffer spring 323.

[0036] In some embodiments, reference Figure 2 and Figure 3 The rotation unloading assembly 33 includes a plurality of lower support blocks 331 rotatably connected to the semi-ring base 1, and the plurality of lower support blocks 331 are evenly spaced along the circumference of the semi-ring base 1. The bottom of the flexible protection block 2 is rotatably connected to a plurality of upper support blocks 332, and the plurality of upper support blocks 332 correspond to the plurality of lower support blocks 331 one by one. A damper 333 is fixedly arranged between the lower support block 331 and the corresponding upper support block 332, and a return spring 334 is arranged on the damper 333. When the flexible protection block 2 rotates, the return spring 334 is in a stretched state.

[0037] When the impact force is transmitted to the rotating unloading assembly 33, the upper support block 332 rotates relative to the lower support block 331 due to the impact force. The rotation of the upper support block 332 drives the damper 333 to work. The damper 333 absorbs energy through the internal medium, and the return spring 334 begins to stretch, further consuming the impact energy. After the impact, the return spring 334 drives the upper support block 332 to return to the initial position under the action of the elastic force, and the damper 333 also returns to the initial state. The rotating unloading assembly 33 automatically resets to prepare for the next protection.

[0038] In some embodiments, reference Figure 2 and Figure 3The locking assembly 34 includes two locking blocks 341 respectively fixed at both ends of the flexible protection block 2. The locking blocks 341 on one side of the two flexible protection blocks 2 are staggered in the height direction. The locking blocks 341 are provided with locking holes 3411 in the height direction. The locking holes 3411 are provided with locking screws 342. The locking screws 342 are threadedly connected with nuts 343. The locking screws 342 are simultaneously inserted into the locking holes 3411 of the locking blocks 341 on the same side of the two flexible protection blocks 2. A cover plate 344 is fixedly provided on the locking screw 342, and the cover plate 344 abuts against the top of the buffer chamber 31. The cover plate 344 is used to prevent external environmental factors (such as rain, dust, debris, etc.) from entering the buffer chamber 31, thereby protecting the buffer component 32 and extending its service life. The cover plate 344 can also make the maintenance and replacement of the buffer component 32 more convenient. When the buffer component 32 needs to be inspected or replaced, it is only necessary to remove the cover plate 344 to directly contact the buffer component 32 without disassembling the entire protective device, thereby improving maintenance efficiency.

[0039] When fixing the two flexible protection blocks 2 by the locking assembly 34, it is only necessary to put the two flexible protection blocks 2 onto the outside of the pier, align the locking holes 3411 of the locking blocks 341 on the same side of the two flexible protection blocks 2, and then insert the locking screw 342 into the locking holes 3411 of the two locking blocks 341 and tighten them with the nut 343 to lock the two flexible protection blocks 2, making it difficult for the two flexible protection blocks 2 to separate laterally.

[0040] The present application also provides a method for installing a highway bridge pier protection device, which is applicable to the above-mentioned highway bridge pier protection device, and the installation steps are as follows: S1. Two half-ring bases 1 and flexible protective blocks 2 are symmetrically mounted on the outside of the pier. S2, fix the two flexible protection blocks 2 through the buffer unloading mechanism 3, so that the two flexible protection blocks 2 are firmly fixed to form a whole; S3, fixing the semi-ring base 1 on the pier through the mounting groove 21; S4, sealing the installation groove 21 by using the sealing component 4; S5. Check all connection points to ensure they are firmly fixed and not loose.

[0041] The implementation principle of a highway bridge pier protection device and its installation method in the embodiment of the present application is as follows: when installing the protection device, firstly, two semi-ring bases 1 and a flexible protection block 2 are symmetrically sleeved on the outside of the pier column, and the semi-ring base 1 is fixed on the pier column, and then the two flexible protection blocks 2 are fixed by the buffer unloading mechanism 3, so that the two flexible protection blocks 2 are firmly fixed to form a whole, and the installation of the protection device is completed; when a vehicle accidentally hits the flexible protection block 2, the impact force is first transmitted to the flexible protection block 2, and part of the impact force is absorbed, and then the impact force is transmitted to the buffer unloading mechanism 3, and the buffer unloading mechanism 3 further absorbs the impact force generated by the vehicle collision, and makes the flexible protection block 2 rotate a certain angle to unload the force, so that the impact force is dispersed, the buffering effect is improved, and on the one hand, the flexible protection block 2 is not easy to be damaged by excessive deformation, the reuse rate and service life of the flexible protection block 2 are improved, and on the other hand, the direct impact on the bridge pier is reduced; when the collision event is over, the buffer unloading mechanism 3 and the flexible protection block 2 automatically return to the initial state, thereby reducing the frequency of maintenance and replacement of the protection device, saving maintenance costs and maintenance time.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A highway bridge pier protection device, characterized in that: include: Two semi-ring bases (1) are provided and symmetrically arranged, and are used to be sleeved on the outside of the pier column; The flexible protection block (2) is sleeved on the outside of the pier column, and two of them are provided and correspond to the two semi-ring bases (1) one by one. The flexible protection block (2) is rotatably connected to the corresponding semi-ring base (1). The buffer unloading mechanism (3) is arranged between the flexible protection block (2) and the semi-ring base (1) and is used to absorb the impact force generated by the collision of the vehicle and to make the flexible protection block (2) rotate to a certain angle to unload the force and then reset, while fixing the two flexible protection blocks (2).

2. A highway bridge pier protection device according to claim 1, characterized in that: The buffer unloading mechanism (3) comprises: A buffer chamber (31) is arranged inside the flexible protection block (2); A buffer assembly (32) is arranged in the buffer chamber (31) and is used to absorb and buffer the impact force generated by the collision of the vehicle. A plurality of buffer assemblies are provided and are evenly distributed along the circumferential direction. A rotating force unloading component (33) is arranged between the semi-ring base (1) and the flexible protection block (2) and is used to rotate the flexible protection block (2) to a certain angle to unload the force and then reset it; The locking assembly (34) is arranged between the two flexible protection blocks (2) and is used to fix the two flexible protection blocks (2).

3. A highway bridge pier protection device according to claim 2, characterized in that: The buffer assembly (32) comprises: An inner support plate (321) is detachably connected to the inner wall of the buffer chamber (31); An outer support plate (322) is spaced apart from one side of the inner support plate (321) and is detachably connected to the inner wall of the buffer chamber (31); The buffer spring (323) is fixedly arranged between the inner support plate (321) and the outer support plate (322). The buffer spring (323) is always in a compressed state and gives the outer support plate (322) a force to move away from the inner support plate (321).

4. A highway bridge pier protection device according to claim 3, characterized in that: The buffer assembly (32) further comprises two connecting rod groups (324) symmetrically arranged between the inner support plate (321) and the outer support plate (322), each of the connecting rod groups (324) comprising a plurality of connecting rods arranged in a height direction, and two ends of the connecting rods are respectively hinged to the inner support plate (321) and the outer support plate (322).

5. A highway bridge pier protection device according to claim 2, characterized in that: The rotation unloading assembly (33) comprises: A lower support block (331) is rotatably connected to the semi-ring base (1), and a plurality of lower support blocks (331) are provided, and the plurality of lower support blocks (331) are evenly distributed along the circumference of the semi-ring base (1); An upper support block (332) is rotatably connected to the flexible protection block (2), and is provided in plurality and corresponds one-to-one with the plurality of lower support blocks (331); The damper (333) is fixedly arranged between the lower support block (331) and the corresponding upper support block (332). A return spring (334) is arranged on the damper (333). When the flexible protection block (2) rotates, the return spring (334) is in a stretched state.

6. A highway bridge pier protection device according to claim 2, characterized in that: The locking assembly (34) comprises two locking blocks (341) respectively fixed at two ends of the flexible protection block (2); the locking blocks (341) on one side where the two flexible protection blocks (2) are connected to each other are staggered in the height direction; the locking blocks (341) are provided with locking holes (3411) in the height direction; a locking screw (342) is provided in the locking hole (3411); a nut (343) is threadedly connected to the locking screw (342); the locking screw (342) is simultaneously inserted into the locking holes (3411) of the locking blocks (341) on the same side of the two flexible protection blocks (2).

7. A highway bridge pier protection device according to claim 6, characterized in that: A cover plate (344) is fixedly provided on the locking screw (342), and the cover plate (344) abuts against the top of the buffer chamber (31).

8. A highway bridge pier protection device according to any one of claims 1 to 7, characterized in that: The semi-ring base (1) is detachably connected to the pier, and a mounting groove (21) is provided at the bottom of the flexible protection block (2), and a blocking component (4) for blocking the mounting groove (21) is provided on one side of the semi-ring base (1).

9. A highway bridge pier protection device according to claim 8, characterized in that: The blocking component (4) comprises: A plurality of blocking blocks (41) are provided and are used to be sleeved on the outside of the semi-ring base (1); The fixing rope (42) is simultaneously wound around the outside of the plurality of blocking blocks (41).

10. A method for installing a highway bridge pier protection device, characterized in that: A highway bridge pier protection device applicable to any one of claims 1 to 9, wherein the installation steps are as follows: S1, symmetrically sleeve two semi-ring bases (1) and a flexible protection block (2) on the outside of the pier column, S2, fixing the two flexible protection blocks (2) by means of the buffer unloading mechanism (3), so that the two flexible protection blocks (2) are firmly fixed to form a whole; S3, fixing the semi-ring base (1) on the pier column through the mounting groove (21); S4, sealing the installation groove (21) by using a sealing component (4).

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