CN223003281U - A protective fence for highway bridge - Google Patents

Abstract

The utility model relates to the field of highway bridge facilities, and in particular to a guardrail for highway bridges, including a support column, a plurality of guardrails are installed in the middle of the support column, and a mounting groove is opened at the bottom of the support column, a plurality of metal dampers are installed on one side of the inner wall of the mounting groove, and a plurality of buffer springs are arranged on the side away from the metal damper, wherein one side of the metal damper and the buffer spring are both connected to a connecting block, and a buffer block is arranged on one side of the connecting block, and the buffer block protrudes from the outer wall of the support column. In the utility model, when the support column is hit, a protruding buffer block is arranged at the bottom of the support column to move into the mounting groove, and the basic buffering protection function is played by the arrangement of the metal damper and the buffer rubber pad, and at the same time, when the collision force reaches a certain level, the metal damper is damaged and the buffer spring is released, and the impact force is effectively buffered, which effectively improves the dispersion effect of the collision force and improves the overall buffering performance of the guardrail.

Description

Protective guard for highway bridge

Technical Field

The utility model relates to the technical field of highway bridge facilities, in particular to a protective fence for a highway bridge.

Background

The highway bridge engineering comprises bridge main engineering and auxiliary engineering facilities in bridge site population, wherein the auxiliary engineering facilities are mainly such as bank protection, guide dike, guard rail, sidewalk rail and the like.

At present, the traditional bridge protective guard can realize the protection and isolation requirements of a foundation, but in the actual use process, the buffer performance of part of the traditional protective guard on the impact force is poor, the support column (seat) of the traditional protective guard can not decompose the impact force, and the situation that the seat body is split and separated after the traditional protective guard is directly impacted by a vehicle can be caused, so that the protective guard for the highway bridge is needed.

Disclosure of utility model

The utility model aims to solve the defects in the prior art and provides a protective fence for a highway bridge.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a rail guard for highway bridge, includes the support column, the mid-mounting of support column has a plurality of rail guards, and the mounting groove has been seted up to the bottom of support column, and a plurality of metal dampers are installed to mounting groove inner wall one side, and the one side that keeps away from metal damper is equipped with a plurality of buffer springs, and wherein metal damper, buffer spring's one side all are connected with the connecting block, and one side of connecting block is equipped with the buffer block;

The middle part of buffer block has offered a plurality of mounting holes, and a plurality of spinal branchs poles are installed to the correspondence in the mounting hole, and a plurality of montants are installed to the equidistance range between the branch, and the rubber bag is installed in the outer wall rotation of montant.

In addition, it is preferable that a plurality of buffer springs are fixedly installed on one side of the inner wall of the installation groove, and a pair of metal dampers are installed on both sides far away from the buffer springs.

In addition, the preferred structure is, buffer spring's one end fixed mounting has the mounting panel, and the one end fixedly connected with buffer rubber pad of mounting panel, buffer rubber pad and the inner wall extrusion contact of connecting block.

In addition, the preferable structure is that the upper and lower parts of the mounting groove are provided with limit grooves, limit blocks are arranged in the limit grooves in a limiting sliding manner, and the limit blocks are arranged on one sides of the upper and lower ends of the connecting block.

In addition, the preferred structure is, the one end protrusion support column outer wall of buffer block, and the other end is through spacing slidable mounting of stopper in the mounting groove.

In addition, the preferable structure is that one side of the limiting block is tightly propped against the inner wall of the limiting groove in a natural state.

In addition, it is preferable that the buffer spring is compressed in a natural state, and the buffer spring is indirectly contacted with the connecting block through a buffer rubber pad.

The beneficial effects of the utility model are as follows:

According to the utility model, when the support column is impacted, the protruding buffer block is arranged at the bottom of the support column and moves into the mounting groove, the buffer protection function of the foundation is achieved through the arrangement of the metal damper and the buffer rubber pad, meanwhile, when the impact force reaches a certain degree, the metal damper is destroyed, the buffer spring is released, the impact force is effectively buffered, the impact force dispersing effect is effectively improved, and the overall buffer performance of the guardrail is improved.

Meanwhile, the corresponding rubber leather bags are arranged on the supporting rods and the vertical rods, after collision occurs, the rubber leather bags are stressed and rotate, and impact force can be effectively absorbed due to the characteristics of rubber materials, and stress is reduced.

Drawings

FIG. 1 is a schematic diagram of an overall connection structure of a guard rail for a highway bridge according to the present utility model;

FIG. 2 is a schematic diagram of a support column according to the present utility model;

FIG. 3 is a schematic view of the internal structure of the support column according to the present utility model;

FIG. 4 is a cross-sectional view of the internal structure of the support column according to the present utility model;

FIG. 5 is a schematic diagram of a buffer block connection structure according to the present utility model;

Fig. 6 is a schematic view of a strut connection structure according to the present utility model.

In the figure, a support column 1, a guardrail bar 2, a buffer block 3, a limit block 31, a connecting block 32, a mounting groove 4, a metal damper 5, a buffer spring 6, a mounting plate 61, a buffer rubber pad 7, a limit groove 8, a support rod 9, a vertical rod 91 and a rubber leather bag 10 are arranged.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-6, a guard rail for a highway bridge comprises a support column 1, wherein a plurality of guard rails 2 are installed in the middle of the support column 1, a mounting groove 4 is formed in the bottom of the support column 1, a plurality of metal dampers 5 are installed on one side of the inner wall of the mounting groove 4, a plurality of buffer springs 6 are arranged on one side far away from the metal dampers 5, one sides of the metal dampers 5 and the buffer springs 6 are connected with a connecting block 32, and a buffer block 3 is arranged on one side of the connecting block 32.

Further, a plurality of mounting holes are formed in the middle of the buffer block 3, a plurality of supporting rods 9 are correspondingly arranged in the mounting holes, a plurality of vertical rods 91 are arranged and installed between the supporting rods 9 at equal intervals, rubber leather bags 10 are rotatably installed on the outer walls of the vertical rods 91, corresponding bearing pieces are arranged in the middle of the rubber leather bags 10 to be connected with the supporting rods 9, and when collision occurs, impact force is absorbed through rubber materials of the rubber leather bags 10 and then the rubber leather bags rotate after collision so as to reduce stress.

Further, a plurality of buffer springs 6 are fixedly installed on one side of the inner wall of the installation groove 4, a pair of metal dampers 5 are installed on two sides far away from the buffer springs 6, the metal dampers 5 can effectively absorb and disperse impact force, and basic buffer performance of the buffer block 3 is guaranteed.

Further, a mounting plate 61 is fixedly mounted at one end of the buffer spring 6, a buffer rubber pad 7 is fixedly connected to one end of the mounting plate 61, and the buffer rubber pad 7 is in extrusion contact with the inner wall of the connecting block 32.

Further, the upper and lower parts of the mounting groove 4 are provided with limiting grooves 8, limiting blocks 31 are arranged in the limiting grooves 8 in a limiting sliding manner, and the limiting blocks 31 are arranged on one sides of the upper and lower ends of the connecting blocks 32.

Further, one end of the buffer block 3 protrudes out of the outer wall of the supporting column 1, and the other end is mounted in the mounting groove 4 in a limiting sliding mode through the limiting block 31, and meanwhile the limiting block 31 is in tight contact with the inner wall of the limiting groove 8 in a propping mode in a natural state.

In this embodiment, be provided with a plurality of guardrail bars 2 between the support column 1 in order to realize basic maintenance, safeguard function, simultaneously in the in-service use, when receiving the direct collision striking from the vehicle, the striking point of vehicle can concentrate in the middle part of support column 1, buffer block 3 promptly, buffer block 3 is impacted and slightly remove in to mounting groove 4, simultaneously because buffer block 3 and metal damper 5 lug connection, impact force passes through buffer block 3 and transmits in the metal damper 5, and metal damper 5 can earlier get into the yield state when receiving the exogenic action through its structural feature, and dispel the exogenic impact through accumulated plastic deformation, cooperate buffer rubber pad, the safeguard function to low impact force can effectively be improved simultaneously to buffer 7.

In the actual use process, when the impact force reaches a certain strength, the metal damper 5 cannot disperse the impact force, so that the metal damper 5 is damaged and deformed, the precompressed buffer spring 6 is released, and the generated rebound force is matched with the buffer rubber pad 7 to buffer the impact force effectively.

In the actual use process, when the supporting rod is impacted, impact force can be effectively absorbed through the rubber material of the rubber leather bag 10, the rubber leather bag 10 rotates along with the movement of an impacting object after the impact, the impact force is effectively dispersed, and direct force of the direct rod body is reduced.

The rubber bag 10 has a through hole in the middle thereof to be sleeved on the vertical rod 91, thereby realizing a rotation effect, and the concept is easy to understand intuitively and is not explained herein.

It is noted that the metal damper 5 includes a pair of special metal materials, particularly mild steel, which have good mechanical properties and damping characteristics, and the materials have low yield strength and good ductility, and can enter a yield state earlier when being subjected to an external force, and dissipate energy generated by an external load through accumulated plastic deformation, and the above specific buffering principles and structures, which are not described in detail, are well known to those skilled in the art, and are not repeated herein.

According to the utility model, when the support column 1 is impacted, the protruding buffer block 3 is arranged at the bottom of the support column 1 and moves into the mounting groove, and the buffer protection function of the foundation is achieved through the arrangement of the metal damper 5 and the buffer rubber pad 7, meanwhile, when the impact force reaches a certain degree, the metal damper 5 is destroyed, the buffer spring 6 is released, the impact force is effectively buffered, the impact force dispersing effect is effectively improved, and the overall buffer performance of the guardrail is improved.

Meanwhile, the corresponding rubber leather bags 10 are arranged on the supporting rods 9 and the vertical rods 91, after collision, the rubber leather bags 10 are stressed to rotate, and impact force can be effectively absorbed due to the characteristics of rubber materials, and stress is reduced.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (7)

1. The utility model provides a rail guard for highway bridge, includes support column (1), its characterized in that, the mid-mounting of support column (1) has a plurality of rail guards (2), and mounting groove (4) have been seted up to the bottom of support column (1), a plurality of metal damper (5) are installed to mounting groove (4) inner wall one side, one side that keeps away from metal damper (5) is equipped with a plurality of buffer spring (6), wherein metal damper (5), one side of buffer spring (6) all are connected with connecting block (32), one side of connecting block (32) is equipped with buffer block (3);

A plurality of mounting holes are formed in the middle of the buffer block (3), a plurality of supporting rods (9) are correspondingly arranged in the mounting holes, a plurality of vertical rods (91) are arranged between the supporting rods (9) at equal intervals, and rubber bags (10) are rotatably arranged on the outer walls of the vertical rods (91).

2. The guard rail for the highway bridge according to claim 1, wherein a plurality of buffer springs (6) are fixedly installed on one side of the inner wall of the installation groove (4), and a pair of metal dampers (5) are installed on two sides far away from the buffer springs (6).

3. The guardrail for the highway bridge according to claim 2, wherein one end of the buffer spring (6) is fixedly provided with a mounting plate (61), one end of the mounting plate (61) is fixedly connected with a buffer rubber pad (7), and the buffer rubber pad (7) is in extrusion contact with the inner wall of the connecting block (32).

4. The guard rail for the highway bridge according to claim 1, wherein the upper and lower parts of the mounting groove (4) are provided with limiting grooves (8), limiting blocks (31) are arranged in the limiting grooves (8) in a limiting sliding manner, and the limiting blocks (31) are arranged on one sides of the upper and lower ends of the connecting block (32).

5. The guard rail for the highway bridge according to claim 1, wherein one end of the buffer block (3) protrudes out of the outer wall of the supporting column (1), and the other end is installed in the installation groove (4) in a limiting sliding manner through a limiting block (31).

6. The guard rail for the highway bridge according to claim 5, wherein the limiting block (31) is in a natural state, and one side of the limiting block (31) is in abutting contact with the inner wall of the limiting groove (8).

7. The guard rail for a highway bridge according to claim 1, wherein the buffer spring (6) is in a compressed state in a natural state, and the buffer spring (6) is indirectly contacted with the connecting block (32) through the buffer rubber pad (7).