CN219951660U - Urban bridge prevents thing net that falls - Google Patents

Abstract

The utility model discloses an urban bridge anti-falling object net, belongs to the field of bridge auxiliary facilities, and solves the problem that the existing design of a sidewalk railing and an anti-falling object net occupies the width of a sidewalk. The utility model comprises a plurality of upright posts, an upper protective net and a lower protective net, wherein the upright posts are arranged on a base, the upper protective net and the lower protective net are arranged on the upright posts, the upper protective net is positioned above the lower protective net, the upper protective net adopts a flexible net, and the lower protective net adopts a rigid net. According to the utility model, the protection and the anti-falling object net of the sidewalk are designed into a whole, the upper protection net and the lower protection net are uniformly arranged on the upright posts, the lower protection net has the functions of protecting the sidewalk and preventing falling objects, and the upper protection net meets the normal anti-falling object function.

Description

Urban bridge prevents thing net that falls

Technical Field

The utility model belongs to the field of bridge auxiliary facilities, and particularly relates to an urban bridge anti-falling object net.

Background

It is known that when a bridge spans roads with a design speed of more than or equal to 60km/h such as express way, expressway and the like and spans traffic channels such as urban rail transit, important railways and the like, in order to prevent hard objects and cigarette ends on the bridge from being scattered carelessly by pedestrians, fire disasters are caused, sundries on the bridge are blown under the bridge by wind, articles loaded by vehicles on the bridge are scattered under the bridge, and vehicles which run rapidly collide with the hard objects at a higher relative speed, or the scattered articles cause abnormal running of the vehicles, traffic safety accidents and personal and property injuries to citizens. In engineering practice, an anti-falling object net is required to be arranged on the outer side of the bridge.

Urban bridges are usually provided with sidewalks on the outer sides of the bridges, and when the urban bridges span important traffic channels, falling-preventing nets are also required to be arranged on the outer sides of the bridges, so that safety of vehicles under the bridges is ensured. Therefore, the situation that the urban bridge is provided with the sidewalk railing and the anti-falling object net at the same time exists in engineering practice widely.

At present, in urban bridge design, when the bridge outside must set up pavement railing and prevent falling the thing net simultaneously, adopt railing and prevent falling the setting mode of thing net mutual independence, adopt the design side by side, railing in inlayer, prevent falling the thing net in the skin. This approach has the following disadvantages: (1) The two have the defects of different shapes, scattered upright post components, inconsistent appearance and poor landscaping; (2) The transverse dimension of the pavement bolster base must ensure the dimension requirement of the pavement railing base steel plate and the anti-falling object net base steel plate during installation, which causes the problem that the effective passing clear width of the pavement on the bridge is compressed; (3) The lower half part of the anti-falling object net has the characteristic of partial protection function, and compared with the sidewalk railing, the anti-falling object net and the sidewalk railing are partially overlapped in function.

Disclosure of Invention

The utility model aims to provide an urban bridge anti-falling object net so as to solve the problem that the existing designs of a pavement railing and an anti-falling object net occupy the width of a pavement.

The technical scheme of the utility model is as follows: the utility model provides an urban bridge prevents thing net that falls, includes a plurality of stands, and the stand is installed on the base, still includes protection network and lower protection network, goes up protection network and lower protection network and all installs on the stand, goes up the protection network and is located lower protection network top, goes up the protection network and adopts the flexible network, and lower protection network adopts the rigid network.

As a further improvement of the utility model, an upper rectangular frame and a lower rectangular frame are arranged between adjacent upright posts, an upper protective net is arranged in the upper rectangular frame, and a lower protective net is arranged in the lower rectangular frame.

As a further improvement of the utility model, the lower protective net is formed by staggered connection of steel bars.

As a further improvement of the utility model, the upper protective net is woven by steel wires.

As a further improvement of the utility model, the upright post is provided with a handrail.

As a further improvement of the utility model, the lower end of the upright post is provided with a flange upper seat, an anchoring steel bar is pre-buried in the base, the upper end of the anchoring steel bar is provided with a flange base, and the flange upper seat is arranged on the flange base.

As a further improvement of the utility model, stiffening ribs are arranged in the rectangular frame.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the protection and the anti-falling object net of the sidewalk are designed into a whole, the upper protection net and the lower protection net are uniformly arranged on the upright posts, the lower protection net has the functions of protecting the sidewalk and preventing falling objects, and the upper protection net meets the normal anti-falling object function.

2. The utility model divides the protective net into an upper protective net and a lower protective net, the lower protective net adopts a rigid net, the horizontal load protection requirement is met, the upper protective net only needs to have the function of preventing falling objects, and the component strength requirement is low, so the flexible net is adopted, and the different requirements of different functional areas on the strength are met. The design saves cost, reduces the area of the single-piece protective net, is convenient to transport, and is convenient for daily maintenance and replacement of components.

3. The utility model has the advantages of simple structure, neat components, unified function, coordinated appearance, good landscape effect and strong practicability.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a view A-A of FIG. 1;

fig. 3 is a B-B view in fig. 2.

In the figure: 1-stand columns; 2-a flange upper seat; 3-a flange plate base; 4-anchoring the steel bars; 5-upper protective net; 6-rectangular frames; 7-connecting bolts; 8-lower protective net; 9-stiffening ribs; 10-U-shaped clamping plates; 11-arc-shaped connectors; 12-armrests; 13-fastening bolts; 14-a base.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-3, an urban bridge anti-falling net comprises a plurality of upright posts 1, wherein the upright posts 1 are arranged on a base 14, and further comprises an upper protective net 5 and a lower protective net 8, wherein the upper protective net 5 and the lower protective net 8 are arranged on the upright posts 1, the upper protective net 5 is positioned above the lower protective net 8, the upper protective net 5 adopts a flexible net, and the lower protective net 8 adopts a rigid net.

An upper rectangular frame 6 and a lower rectangular frame 6 are arranged between the adjacent upright posts 1, the upper protective screening 5 is arranged in the upper rectangular frame 6, and the lower protective screening 8 is arranged in the lower rectangular frame 6. The rectangular frame 6 is made of angle steel, and the rectangular frame 6 is connected to the upright post 1 through a connecting bolt 7.

The lower protective screening 8 is formed by connecting steel bars in a staggered mode, and the lower protective screening 8 is welded in the rectangular frame 6.

The upper protective net 5 is woven by galvanized steel wires, and the upper protective net 5 is welded in the rectangular frame 6.

The upright 1 is provided with a handrail 12. The handrail 12 is positioned at the junction of the upper protective screen 5 and the lower protective screen 8. The upright post 1 is welded with a U-shaped clamping plate 10, an arc-shaped connecting piece 11 is connected in the U-shaped clamping plate 10 through a fastening bolt 13, and a handrail 12 is welded at the upper end of the arc-shaped connecting piece 11.

The lower extreme of stand 1 is equipped with ring flange upper seat 2, and pre-buried anchor bar 4 in the base 14, anchor bar 4 are L shape, and anchor bar 4 upper end welding has ring flange base 3, and ring flange upper seat 2 installs on ring flange base 3.

Stiffening ribs 9 are arranged in the rectangular frame 6.

The total height of the utility model is not less than 2000mm from the pavement surface, and the height requirement of the conventional anti-falling object net is met.

The mesh sizes of the upper protective net 5 and the lower protective net 8 are not more than 50mm multiplied by 100mm, thereby meeting the use requirements of the conventional anti-falling object net.

The clear distance of the lower end of the lower rectangular frame 6 from the base 14 must not be greater than 20mm in order to effectively ensure that pedestrians are prevented from throwing waste and butts from there.

The height of the handrail 12 is not less than 1100mm from the pavement surface, and meets the height requirement of the conventional pavement handrail. An accessible handrail can be additionally arranged, and the height of the accessible handrail is 850-900 mm from the pavement surface, so that the use requirements of different people are met.

Claims (7)

1. The utility model provides a thing net is prevented falling by city bridge, includes a plurality of stands, and the stand is installed on the base, its characterized in that: the novel anti-theft protection system is characterized by further comprising an upper protection net (5) and a lower protection net (8), wherein the upper protection net (5) and the lower protection net (8) are both arranged on the upright post (1), the upper protection net (5) is positioned above the lower protection net (8), the upper protection net (5) adopts a flexible net, and the lower protection net (8) adopts a rigid net.

2. The urban bridge anti-drop net according to claim 1, wherein: an upper rectangular frame (6) and a lower rectangular frame (6) are arranged between the adjacent upright posts (1), the upper protective net (5) is arranged in the rectangular frame (6) above, and the lower protective net (8) is arranged in the rectangular frame (6) below.

3. An urban bridge anti-drop net according to claim 1 or 2, characterized in that: the lower protective net (8) is formed by staggered connection of steel bars.

4. A municipal bridge anti-drop net according to claim 3, wherein: the upper protective net (5) is formed by weaving steel wires.

5. The urban bridge anti-drop net according to claim 4, wherein: an armrest (12) is arranged on the upright post (1).

6. The urban bridge anti-drop net according to claim 5, wherein: the lower extreme of stand (1) is equipped with ring flange seat (2), pre-buried anchor bar (4) that have in base (14), anchor bar (4) upper end is equipped with ring flange base (3), and ring flange seat (2) are installed on ring flange base (3).

7. An urban bridge anti-drop net according to claim 2, wherein: stiffening ribs (9) are arranged in the rectangular frame (6).