A kind of freeway guardrail
Technical field
The utility model relates to a kind of guardrail, relates in particular to a kind of simple and reasonable, low cost of manufacture, possesses the freeway guardrail of flexible and toughness.
Background technology
In recent years, the traffic accident that takes place on the speedway, having quite a few situation is that vehicle is gone out guardrail, the vehicle damage that causes, the phenomenon of driver and crew's injures and deaths.It is most for the driver is careless careless to trace it to its cause, and the road conditions complexity causes in addition.But existing general freeway guardrail impact resistance strength deficiency also should draw attention, and in order to reduce the generation that smashes the traffic accident that guardrail causes, provides the high anticollision barrier of a kind of safety factor very necessary as far as possible.Producer is in order to improve guardrail impact resistance intensity; generally all be all to adopt the high-strength material manufacturing to form the monoblock guardrail; as adopt the high strength steel iron material; though improved guardrail impact resistance intensity like this; but manufacturing cost height; guardrail lacks certain elasticity and toughness in addition, is unfavorable for protecting driver and crew.Also have producer to adopt the plastic-steel material to make protective guard, it generally also is that the monoblock guardrail is directly made by plastics, and manufacturing cost is higher.As to authorize publication number be CN100591852C, name is called the patent of invention of resin guardrail, it comprises pillar, a plurality of protective sheet that engage with pillar and is used for the interconnected brace of described protective sheet that protective sheet comprises hollow matrix, and its cross section is wavy.The protective sheet monoblock forms with a kind of material in this patent, if adopt high-strength material, then manufacturing cost is just very high.
Summary of the invention
The utility model has mainly solved the high problem of general protective guard manufacturing cost, a kind of advantages of simple as a result, intensity height are provided, have elasticity and toughness, the freeway guardrail of low cost of manufacture.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of freeway guardrail, comprise plate body and column, described plate body cross section is that the thick intermediate thin in two ends, surface are corrugated structure, on plate body two thick ends, be respectively equipped with cavity or groove, in cavity or groove, be provided with inner core.Guardrail is divided into plate body and inner core two parts in the utility model, can regulate plate body and inner core respectively and make guardrail reach needed intensity.Plate body adopts two kinds of different materials respectively with inner core, and plate body adopts the plastic material of moderate strength, high resiliency and high tenacity to make, and the mode that adopts common section bar to extrude on the mode of production is produced, and production efficiency is very high, and defect rate is very low.Inner core adopts high-intensity plastic material manufacturing, adopts the extruded type mode to produce equally.This guardrail possesses certain elasticity and toughness; effectively increased buffering to bump; help protection and take advantage of the frame personnel; this guardrail only adopts high-strength material at two ends up and down in addition; guaranteeing to have good crashproof intensity simultaneously, reduced the use of high-strength material again, greatly reduce cost of production; also reduce the guardrail overall weight in addition, reduced cost of transportation.Plate body and inner core can be integral by assembly, or adopt the quadric injection mould mode to make to form.
As a kind of preferred version, the cross section of thick end section of described plate body and inner core all is a triangle, and inner core closely pastes mutually with cavity or groove.Strengthened the intensity effect of plate body and inner core.
As a kind of preferred version, the thick end surfaces of plate body is an arc shape, and inner core closely pastes mutually with cavity or groove.Strengthened the intensity effect of plate body and inner core.
As a kind of preferred version, described plate body and inner core inside are evenly distributed with some brace rods, form square or leg-of-mutton cavity at plate body and interior in-core.Plate body and inner core are made cellular, have reduced the use of material, have reduced cost, have also alleviated the weight of guardrail simultaneously, and cost of transportation significantly reduces.
As a kind of preferred version, link to each other by adapter sleeve between the plate body, described adapter sleeve shape is identical with plate shape, plate body is inserted in the adapter sleeve, fix by bolt and adapter sleeve, the adapter sleeve back side is provided with the carriage of more than one fonts, and described column and carriage fix by bolt.Adapter sleeve connects into a continuous guardrail with plate body.
As a kind of preferred version, the surface of described plate body is provided with reflector or fluorescent screen.
As a kind of preferred version, described inner core is provided with cavity two.
The utility model has the advantages that: guardrail is divided into plate body and inner core two parts, inner core adopts high-strength material, plate body adopts moderate strength, high resiliency and high tenacity material to constitute, when guaranteeing guardrail intensity, reduced the use of high-strength material, reduced cost of production, alleviated the weight of guardrail simultaneously, cost of transportation also reduces greatly.
Description of drawings
Fig. 1 is a kind of structure sectional view of plate body in the utility model;
Fig. 2 is the another kind of structure sectional view of plate body in the utility model;
Fig. 3 is the third structure sectional view of plate body in the utility model;
Fig. 4 is the 4th a kind of structure sectional view of plate body in the utility model;
Fig. 5 is a kind of structural representation at positive visual angle, the utility model assembling back;
Fig. 6 is a kind of structural representation at visual angle, the back side, the utility model assembling back.
The specific embodiment:
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is further described.
Embodiment 1:
A kind of freeway guardrail of present embodiment, as shown in Figure 5 and Figure 6, comprise plate body 1 and column 6, link to each other by adapter sleeve 5 between plate body and the plate body that this adapter sleeve shape is consistent with plate shape, one end of two plate bodys is inserted in the adapter sleeve respectively, by bolt junction plate and plate body are fixed, the adapter sleeve back side is provided with an a few font carriage 7, and the two ends of carriage are by being bolted on the plate body, column contacts with carriage intermediate projections portion, and fixes by bolt.As shown in Figure 1, the cross section of plate body is the thick intermediate thin in two ends, and the surface is wavy structure, is respectively arranged with cavity in two thick ends, is equipped with the inner core 2 that fits tightly with cavity in cavity, and inner core is provided with cavity 28.In the present embodiment, the thick end of this plate body is designed to triangle, and then inner core also is a triangle.Be evenly distributed with brace rod 3 at plate body 1 and inner core 2 inside, plate body inside is separated into many square cavities, inner core inside is separated into many triangle cavitys.Plate body adopts moderate strength, high resiliency and high toughness plastic material to make, and inner core adopts high strength plastic materials to make.The surface of plate body 1 is provided with fluorescent screen 4.
Embodiment 2:
As shown in Figure 2,1 liang of thick end of plate body is provided with the groove of opening at the plate body back side, the cross section triangularity shape of this thick end, the flange of bending on the two edges of slot opening, being respectively arranged with, flange and groove inwall are formed with the Access Division that prevents that inner core from deviating from, inner core 2 shapes are consistent with groove shapes, and inner core is inserted in the groove, and holding is in groove.Other structures are identical with embodiment 1 in the present embodiment.
Embodiment 3:
As shown in Figure 3, the thick end of plate body 1 is designed to the surface and is the structure of arc convex, is provided with cavity in thick end, and inner core is arranged in the cavity, and closely contacts with cavity.Other structures are identical with embodiment 1 in the present embodiment.
Embodiment 4:
As shown in Figure 4, the thick end of plate body 1 is designed to the surface and is the structure of arc convex, two thick ends are provided with the groove of opening at the plate body back side, the flange of bending on the two edges of slot opening, being respectively arranged with, flange and groove inwall are formed with the Access Division that prevents that inner core from deviating from, inner core 2 shapes are consistent with groove shapes, and inner core is inserted in the groove, and holding is in groove.Other structures are identical with embodiment 1 in the present embodiment.
When external force such as being subjected to vehicle was collided, if stressed less, then plate body produced elastic deformation, and after external force was eliminated, plate body can restore to the original state automatically; If stressed bigger, but when not exceeding the inner core strength limit as yet, then the brace rod in the plate body fractures, inner core plays main crashproof effect, and vehicle is stopped, and external force will produce a pit on the plate body after eliminating; If stressed continuation increases, when having exceeded the inner core strength limit, an inner core stressed side earlier fractures, and props up a stressed side behind inner core through inner core cavity two, at this moment vehicle immobilization; If it is stressed big especially, when having exceeded the inner core strength limit, an inner core stressed side earlier fractures, prop up a stressed side behind inner core through inner core cavity two, this side still fractures, and plate body stressed elongation this moment is through the inner core buffering that fractures for twice, plate body is stressed greatly to be reduced, and will vehicle be stopped in limited distance.
More than various situations all less to vehicle damage, so vehicle deformation is less, driver and crew have been played effective protection.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technician of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as plate body, column, inner core, adapter sleeve morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.