CN86200467U

CN86200467U - Stretchable safety barrier for railway cross road

Info

Publication number: CN86200467U
Application number: CN 86200467
Authority: CN
Inventors: 朱兴民
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-01-29
Filing date: 1986-01-29
Publication date: 1987-05-27

Abstract

The stop lever and the grating type barrier used for railway cross exists the defects of poor protection function, large occupation of land, and inconvenient corrective maintenance at present. The utility model provides a barrier for railway cross with a new structural style and a driving means. The barrier is composed of metallic pipe material or section material means, and the whole external shape is composed of a plurality of rhombuses. The utility model has the advantages of shapely configuration, high reliability, and the driving of the barrier for railway cross adopts the hydraulic pressure way.

Description

Stretchable safety barrier for railway cross road

The utility model relates to a kind of level crossing safety barrier.

In railway and highway plane intersection, for guaranteeing traffic safety, safety barrier is set all generally, before train arrives, put down or release guardrail blocking-up highway communication, to guarantee train and other various vehicles and pedestrian's safety.The guardrail that uses at each road junction has two kinds at present, a kind of is old-fashioned railing, railing props up and is placed on the frame, rise by manual or motor-driven control railing and putting down, this railing fitting operation is fairly simple, but safeguard function is poor, can not block highway communication effectively, be prone to accidents, and after the pin rise current vehicle still had certain overslaugh, general important road junction has not re-used this pin; Another kind is the paling form block protecting device, this guardrail is made up of metal frame, there are several road wheels and driving wheel in its underpart, folding and unfolding at ordinary times is in the road both sides, during use, the drive motors that is contained in the guardrail rear portion drives driving wheel, utilizes the friction of driving wheel and rail that guardrail is released, with the blocking-up highway communication, this guardrail safeguard function is better, but take up an area of greatly, the position of parking guardrail must be left in the both sides, road junction, and the motor that is contained on the guardrail will move back and forth along with guardrail, need set up motor-driven power line, the machine operation environment is abominable, also need lay rail in addition, has strengthened construction cost.

It is a kind of easy to operate that the utility model purpose is to provide, the crossing safety guardrail that safeguard function is good, occupation of land is little.For realizing this purpose, the level crossing safety barrier that the utility model has adopted a kind of metal tubulation material section components to form, these members intersect mutually forms several rhombuses, each member intersects part and adopts articulated structure, second pin joint in guardrail one end middle part is fixed on the support by hinge, first pin joint is connected with the piston rod of oil cylinder and is driven by it, and road wheel is equipped with in guardrail other end bottom.

When the utility model is used for the road junction, take up little room, when trailing, whole guardrail is made of a plurality of rhombuses, and moulding is vividly attractive in appearance, adopts hydraulic-driven convenient and reliable.

Below in conjunction with drawings and Examples utility model is described in further detail.

Fig. 1 is principle of the present utility model and structural representation.

Fig. 2 is articulated structure figure between member.

The utility model is formed several rhombuses (seeing accompanying drawing 1) by several steel pipes or the mutual cross-articulation of other Steel section member, hinged employing between member is method as shown in Figure 2, by a hinge (12) be installed in two bearings (11) on the member and match to install and realize being connected, bearing is installed in the bearing support (10) that is welded on the member (13), bearing preferably adopts interference fits with bearing support and bearing with being connected of hinge, in order to maintenance in the future.Node among Fig. 1 (1,2,3) is located preferably to adopt axis hinged, and bearing and bearing support promptly are not installed on member, directly makes hinge pass two holes on the member and realizes hinged.Node (1) is located the bottom road wheel is installed.If the active length of guardrail surpasses 15 meters, can a road wheel be installed again at the guardrail middle part.Two short columns that node (1) is located on extension, hinge two ends and the walking wheel seat are flexible connection, are with stage clip on short column, and are more steady when making the guardrail walking.The hinge two ends that node (2) is located are fixed on the support, and the piston rod (4) of the same driving oil cylinder of hinge (5) that node (3) is located links to each other.During work, when node (3) shrinks under the oil cylinder piston bar drives or stretches, fulcrum is that node (2) is located also all corresponding contraction of opposite side each point or stretching, extension, the distance that each point shrinks or stretches does not wait, and the ratio of the same node of each point displacement (3) displacement equals the ratio of each point to the same node of distance (3) of node (2) to node (2) distance.Near the node (2) member should suitably add hard intensity.Drive unit is made up of oil pump (8), oil cylinder (5) and corresponding control oil channel.The member of forming guardrail generally also can adopt aluminum alloy materials.

Provide a kind of concrete parameter of guard bar device below: the active length of guardrail is 18 meters, member adopts the steel pipe of φ 50 * 6, the power of gear oil pump is 1.5 kilowatts, use 220 volts of single-phase single sources, the specification of oil cylinder: D30mm * d35mm * 800mm, control oil channel is made up of hand-operated direction valve (6), flow speed control valve (7), overflow valve (9) and pipeline.Hinged employing mode shown in Figure 2 between member, each pin joint all adopts 203 bearings.

Description of drawings:

1 node for the continuous walking wheel in the accompanying drawing 1,2 is fulcrum, and 3 is the node that connects with cylinder piston rod, and 4 is piston rod, and 5 is oil cylinder, and 6 is hand-operated direction valve, and 7 is flow speed control valve, and 8 is oil pump, 9 is overflow valve.

In the accompanying drawing 2,10 is bearing support, and 11 is rolling bearing, and 12 is hinge, and 13 is rod member.

Claims

1, a kind of level crossing safety barrier of forming by hardware, it is characterized in that: guardrail is made up of several steel or aluminium alloy pipe or section components, these members intersect mutually forms several rhombuses, each member intersects part and adopts articulated structure, second pin joint in guardrail one end middle part is fixed on the support by hinge, first pin joint links to each other with the oil cylinder piston bar, and is driven by it, and road wheel is equipped with in the other end bottom of guardrail.

2, a kind of level crossing as claimed in claim 1 safety barrier, it is characterized in that: the hinged following manner of taking between each member of said composition guardrail: by a hinge be installed in two bearings on the member and match to install and realize being connected, bearing is installed in the bearing support that is welded on the member.