Bridge pier anti-collision protection string
The design of the split and detachable guard plate solves the problem of high overall replacement cost of bridge pier anti-collision guard plates at high-frequency impact locations, realizes efficient replacement of guard plate plates, and reduces the cost of bridge pier protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 四川高速公路建设开发集团有限公司
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-21
AI Technical Summary
The existing bridge pier anti-collision guards fail after long-term use in the guard sections at high-frequency impact locations, resulting in high overall replacement costs.
The design features a split, detachable chord plate that is detachably connected to the pier via connectors. The chord plate can be removed and replaced along the axial direction, avoiding the need for complete replacement.
This reduces the overall replacement cost of pier protection and improves the maintenance efficiency and economy of the guard plate.
Smart Images

Figure CN224148637U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge pier protection technology, and in particular to a bridge pier anti-collision guard. Background Technology
[0002] Bridge piers are substructures that support the bridge span and transfer dead loads and vehicle live loads to the foundation. They are the piers under the bridge that support the bridge body and play a load-bearing role. They are made of stone or reinforced concrete. For bridge piers that span waterways, collision protection measures are required after the piers are built to prevent ships from colliding with the piers and causing damage to both the piers and the ships.
[0003] Patent CN218090724U discloses a bridge pier anti-collision guard. While it solves the bridge pier protection problem, the most frequent impact points from ships are often in the downstream or upstream direction. High-frequency impact components will fail after long-term use, requiring replacement of the failed guard. However, because it is an integrated structure, the entire guard must be replaced, significantly increasing the cost of bridge pier protection. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a bridge pier anti-collision guard. By setting a split and detachable guard plate, when one or more guard plates are subjected to high-frequency impacts for a long time, the guard plate can be removed along the axial direction and replaced with a new guard plate to complete the replacement, avoiding the need for overall replacement and greatly reducing the protection cost of the bridge pier.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A bridge pier anti-collision guard line includes a bridge pier and a guard line body disposed outside the bridge pier. The guard line body includes multiple split guard line plates, which are detachably connected to form a ring plate structure.
[0007] Multiple of the guard plates are detachably connected to the bridge pier via connectors.
[0008] Furthermore, each end of the guard plate is provided with a first insertion hole and a first insertion part, and multiple guard plates are connected end to end through the first insertion hole and the first insertion part.
[0009] Furthermore, the connector includes a circular sleeve, which has a plurality of second insertion holes along its circumference. The inner side of the guard plate is provided with a second insertion part that is adapted to the second insertion holes. The guard plate is connected to the circular sleeve through the second insertion part and the second insertion holes.
[0010] Furthermore, the sleeve is made of cement.
[0011] Furthermore, the first and second insertion holes are arc-shaped, dovetail-shaped, or T-shaped.
[0012] Furthermore, the guard plate is made of polyurethane material.
[0013] Furthermore, an axial limiting member is provided at the second insertion hole, which is used to limit the axial upward displacement of the second insertion part.
[0014] Furthermore, the limiting component includes two pre-embedded bolts and an arc-shaped plate. The two pre-embedded bolts are symmetrically arranged on both sides of the second insertion hole, and the two ends of the arc-shaped plate are fixed to the pre-embedded bolts by nuts.
[0015] The beneficial effects of this utility model are:
[0016] This utility model, by setting up a split and detachable guard plate, allows for easy replacement of bridge piers when one or more guard plates are subjected to high-frequency impacts over a long period of time. This is achieved simply by removing the guard plate axially upwards and replacing it with a new one, avoiding the need for complete replacement and significantly reducing the protection cost of the bridge piers. Attached Figure Description
[0017] Figure 1 This is a perspective view of the anti-collision guardrail of the bridge pier in this embodiment of the utility model;
[0018] Figure 2 Exploded view of the anti-collision guardrail of the bridge pier;
[0019] Figure 3 A top view of the anti-collision guardrail of the bridge pier;
[0020] In the diagram, 1 is the bridge pier; 2 is the guard plate; 3 is the first insertion hole; 4 is the first insertion part; 5 is the second insertion hole; 6 is the second insertion part; 7 is the round sleeve; 8 is the embedded bolt; and 9 is the arc plate. Detailed Implementation
[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] See Figures 1-3 This utility model provides a technical solution: Example
[0023] like Figures 1-3As shown, a bridge pier anti-collision guard includes a bridge pier 1 and a guard body disposed outside the bridge pier 1. The guard body includes multiple split guard plates 2, which are detachably connected to form a ring plate structure.
[0024] Multiple guard plates 2 are detachably connected to the pier 1 via connectors.
[0025] The two ends of the guard plate 2 are respectively provided with a first insertion hole 3 and a first insertion part 4, and multiple guard plates 2 are connected end to end through the first insertion hole 3 and the first insertion part 4.
[0026] like Figure 2 As shown, the connector includes a circular sleeve 7, which has a plurality of second insertion holes 5 along its circumference. The inner side of the guard plate 2 is provided with a second insertion part 6 that is adapted to the second insertion holes 5. The guard plate 2 is connected to the circular sleeve 7 through the second insertion part 6 and the second insertion holes 5.
[0027] The circular sleeve 7 is made of cement.
[0028] The first insertion hole 3 and the second insertion hole 5 are arc-shaped, dovetail-shaped, or T-shaped.
[0029] The guard plate 2 is made of polyurethane material.
[0030] An axial limiting member is provided at the second insertion hole 5, which is used to limit the axial upward displacement of the second insertion part 6.
[0031] The limiting component includes two pre-embedded bolts 8 and an arc-shaped plate 9. The two pre-embedded bolts 8 are symmetrically arranged on both sides of the second insertion hole 5. The two ends of the arc-shaped plate 9 are fixed to the pre-embedded bolts 8 by nuts.
[0032] Specifically: 1. When the circular sleeve 7 is poured, a second insertion hole 5 and a pre-embedded bolt 8 are reserved. 2. A gap can be set between the circular sleeve 7 and the pier 1, and the bottom of the circular sleeve 7 is connected to the foundation by steel bars. 3. The depth of the second insertion hole 5 is the same as the thickness of the second insertion part 6, so that the bottom of the second insertion hole 5 can serve as a positioning and support platform for the second insertion part 6.
[0033] Working principle: When one or more of the guard plates 2 are subjected to high-frequency impacts for a long time, simply remove the guard plate 2 along the axial direction of (pier 1) and replace it with a new guard plate 2. When installing the guard plate 2, align the first insertion hole 3 with the first insertion part 4 and the second insertion part 6 with the second insertion hole 5.
[0034] After the guard plate 2 is installed, the arc plate 9 is installed. The two ends of the arc plate 9 are fixed by pre-embedded bolts 8 and nuts. The arc plate 9 is stretched horizontally above the second insertion part 6 of the guard plate 2, thereby limiting its axial movement and preventing it from shifting in the axial direction.
[0035] This utility model, by setting up a split and detachable guard plate, allows for easy replacement of bridge piers when one or more guard plates are subjected to high-frequency impacts over a long period of time. This is achieved simply by removing the guard plate axially upwards and replacing it with a new one, avoiding the need for complete replacement and significantly reducing the protection cost of the bridge piers.
[0036] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.
Claims
1. A bridge pier anti-collision fender comprising a bridge pier and a fender body arranged outside the bridge pier, characterized in that: The string guard body includes multiple split string guard plates, which are detachably connected to form a ring plate structure. Multiple of the guard plates are detachably connected to the bridge pier via connectors.
2. The pier fender of claim 1, wherein: The two ends of the guard plate are respectively provided with a first insertion hole and a first insertion part, and multiple guard plates are connected end to end through the first insertion hole and the first insertion part.
3. The pier fender of claim 2, wherein: The connector includes a circular sleeve with a plurality of second insertion holes along its circumference. The inner side of the guard plate is provided with a second insertion part that is adapted to the second insertion holes. The guard plate is connected to the circular sleeve through the second insertion part and the second insertion holes.
4. The fender of claim 3, wherein: The circular sleeve is made of cement.
5. The fender of claim 3, wherein: The first and second insertion holes are arc-shaped, dovetail-shaped, or T-shaped.
6. The fender of claim 3, wherein: The guard plate is made of polyurethane material.
7. The pier fender of claim 3, wherein: An axial limiting member is provided at the second insertion hole, which is used to limit the axial upward displacement of the second insertion part.
8. The bridge pier fender of claim 7, wherein: The limiting component includes two pre-embedded bolts and an arc-shaped plate. The two pre-embedded bolts are symmetrically arranged on both sides of the second insertion hole, and the two ends of the arc-shaped plate are fixed to the pre-embedded bolts by nuts.
Citation Information
Patent Citations
Bridge pier anti-collision protection chord
CN218090724U