CN201071489Y - Stepped buffering type anti-collision pad - Google Patents

Abstract

The utility model discloses a grading cushioning type anti-collision cushion, consisting of a rubber end head, a paracurve-shaped rubber cushioning guide belt, an ellipse-shaped unit barrel, a annular unit barrel and an anti-collision cushion buffer; wherein the unit barrel is provided on a ground prefabricated object. The annular unit barrel is provided in the ellipse-shaped unit barrel. The ellipse-shaped unit barrel is provided in the paracurve-shaped rubber cushioning guide belt. The anti-collision buffer is provided on the central line from a rubber end head to the tail part of the anti-collision cushion. The end head and the lateral side of the anti-collision cushion are provided with flexible materials such as the rubber, etc.. From collision end head to anti-collision cushion tail part and for the ellipse-shaped unit barrel and the annular unit barrel, the widths of steel boards are provided from thin to thick; the unit barrel is provided from small to big; the number of the cushioning objects is internally provided from small to big. The ellipse-shaped unit barrel of the tail part of the anti-collision cushion and the annular unit barrel of the tail part of the anti-collision cushion are fixedly connected with other ground prefabricated objects. The grading cushioning type anti-collision cushion has the advantages of sophistication structure and huge collision protection and cushioning.

Description

Graded cushioning crash pad

technical field

The utility model relates to a road traffic safety anti-collision facility, in particular to a graded buffer type anti-collision pad.

Background technique

Highway traffic safety facilities are a safety protection system composed of structures such as guardrails, signs, marking lines, sight guidance signs, isolation fences, protective nets, anti-glare panels, and crash pads. Any lack or deficiency in any aspect may cause the accident or aggravate the severity of the accident. JTG D80 (page 18) of the "General Specifications for the Design of Expressway Traffic Engineering and Facilities Along the Line" implemented on October 1, 2006 in my country stipulates that: 5.9.1 The end of the guardrail at the diversion end of the main line of the expressway and the end of the ramp exit should be provided with anti-collision pads ; 5.9.2 Anti-collision pads should be installed at the end of the middle pier of the flyover bridge over the expressway and the end of the opening of the central divider. There have been many years of research on crash pads in foreign countries, but there is no mature research on the structure of crash pads in my country. The protection ability of the glass fiber reinforced plastic road crash buckets that are commonly used is low, and the built-in objects will be thrown and splashed after the vehicle collides. , It is easy to cause secondary accidents of vehicles. In response to the new regulations, it is necessary to develop crash pad products suitable for the actual situation of my country's traffic, so as to improve my country's road traffic safety protection system. The graded buffer type anti-collision pad is fixedly placed in front of the anti-collision object. When the vehicle is in frontal collision, the graded buffer absorbs energy. When the vehicle is in a side collision, the rubber guide belt is buffered and guided. It can prevent the big car and take care of the small car according to different vehicles and speeds. The side guide function can effectively avoid accidents or reduce the severity of accidents to ensure driving safety.

Utility model content

The utility model discloses a graded buffer type anti-collision pad. The graded buffer type anti-collision pad consists of a rubber end, a parabolic rubber buffer guide belt, an elliptical unit barrel, a circular unit barrel, a fixed guide rail, and an anti-collision pad buffer. and other components. The unit barrel is set on the ground concrete prefabricated object, the circular unit barrel is arranged in the oval unit barrel, the oval unit barrel is arranged in the parabolic rubber buffer guide belt, and the anti-collision pad buffer is arranged between the rubber end and the anti-collision pad Centerline of the tail.

The above-mentioned crash pad buffer is composed of several unit sections, which are divided into two types: emptying type and hydraulic type. After the collision shrinks, it can be combined into one section, and each section can be reused after being pulled out.

The protection energy of the crash pad buffer described above is set in stages from small to large from the rubber end to the tail of the crash pad.

The end and side of the above-mentioned graded cushioning crash pad are provided with rubber-like flexible materials to buffer and dissipate the impact.

From the collision end to the rear of the crash pad, the thickness of the steel plates of the elliptical unit barrel and the circular unit barrel of the above-mentioned graded buffer crash pad is set from thin to thick respectively.

The above-mentioned graded buffer type crash pad is arranged from the collision end to the tail of the crash pad, and the diameters of the circular unit barrels are arranged from small to large.

The above-mentioned graded buffer type crash pad is arranged from the collision end to the tail of the crash pad, and the elliptical unit barrels are arranged from small to large.

The number of built-in buffers in the above-mentioned graded buffer type crash pad oval unit barrel and circular unit barrel is set from less to more from the collision end to the rear of the crash pad.

The elliptical unit barrel and the circular unit barrel at the tail of the above-mentioned graded cushioning crash pad are connected and fixed with the interior ground prefab.

The graded buffer type anti-collision pad of the utility model has the advantages of exquisite structure, strong anti-collision and buffering capacity, convenient manufacture and installation, and can improve the overall safety protection level of highway and urban road guardrails.

Description of drawings

Fig. 1 is a schematic diagram of the planar structure of an embodiment of the utility model graded buffer type anti-collision.

Fig. 2 is a schematic diagram of the planar structure of an embodiment of the graded buffer type crash pad buffer of the present invention.

Fig. 3 is a schematic side view of an embodiment of the graded cushioning crash pad buffer of the present invention.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is further described.

As shown in Figures 1, 2, and 3, the graded buffer crash pad consists of rubber ends 4, parabolic rubber buffer guide belts 3, oval unit barrels 2, circular unit barrels 1, and crash pad buffers 5. composition. The unit barrel is set on the ground concrete prefabricated object, the circular unit barrel 1 is arranged in the oval unit barrel 2, the oval unit barrel 2 is arranged in the parabolic rubber buffer guide belt 3, and the anti-collision pad buffer 5 is arranged at the rubber end On the central line from the head to the rear of the crash pad, a buffer unit section is arranged in a circular unit barrel.

The anti-collision pad buffer 5 composed of 4 unit sections 6 is an emptying type buffer, through which each section compresses the air after the collision, and the rebound force discharged by the air flow in a short time plays a good role in buffering and protecting the collision. Energy dissipation. The crash pad buffer can be combined into one section after the collision shrinks, and each section can be reused after being pulled out. The size and evacuation energy of each unit section are set in stages from small to large from the rubber end to the rear of the crash pad.

The end and side of the anti-collision pad are provided with special anti-corrosion rubber flexible materials, which can buffer and dissipate energy for collisions.

From the collision end to the rear of the crash pad, the steel plate thicknesses of the oval unit barrel and the circular unit barrel are set from thin to thick, respectively 3mm, 3.5mm, 4mm and 4.5mm; from the collision end to the rear of the crash pad , the size of the oval unit barrel and the round unit barrel are set from small to large, and the sizes of the round unit barrel are 30cm, 35cm, 40cm, 45cm respectively; Buffers can be placed in oval unit barrels and circular unit barrels, and the number is set from less to more from the collision end to the rear of the crash pad; the oval unit barrel, circular unit barrel and crash pad at the rear of the crash pad The buffer is connected and fixed to the pre-embedded objects on the ground, the steel pipe is pre-embedded on the ground and concrete is poured to the same height as the lower part of the buffer, and the pre-embedded steel pipe is locked with the circular unit barrel.

When a vehicle collides, the elliptical unit barrel and the circular unit barrel deform, and the buffer unit begins to compress the air in the cylinder. The deformation and energy absorption of the steel plate and the exhaust energy absorption of the buffer are the two main ways to reduce the kinetic energy of the vehicle. form.

Claims (7)

1. classification buffer-type bumper, it is characterized in that: classification buffer-type bumper is made up of parts such as rubber termination, parabola shaped rubber buffer-oriented band, obround elements bucket, circular cell bucket, bumper snubbers.The unit bucket is arranged on the ground concrete preformed objects, the circular cell bucket is laid in the obround elements bucket, the obround elements bucket is laid in the parabola shaped rubber buffer-oriented band, the bumper snubber is arranged on the rubber termination to the center line of bumper afterbody, and a circular cell bucket is provided with a buffer unit joint.

2. classification buffer-type bumper as claimed in claim 1 is characterized in that: the bumper snubber of being made up of several unit joint has two kinds of emptying type and fluid pressure types, can be combined into a joint after collision is shunk, and can reuse after each joint extraction.The protection energy of each unit joint from the rubber termination to the classification setting from small to large of bumper afterbody.

3. classification buffer-type bumper as claimed in claim 1, it is characterized in that: the termination of bumper and side are provided with the rubber-like flexible material, and buffering and energy dissipating effect are played in collision.

4. classification buffer-type bumper as claimed in claim 1 is characterized in that: to the bumper afterbody, the steel plate thickness of obround elements bucket and circular cell bucket is respectively by being thinned to thick setting from the collision termination.

5. classification buffer-type bumper as claimed in claim 1 is characterized in that: from colliding the termination to the bumper afterbody, the ascending setting of size of obround elements bucket and circular cell bucket.

6. classification buffer-type bumper as claimed in claim 1 is characterized in that: the built-in cushion quantity of classification buffer-type bumper obround elements bucket and circular cell bucket is provided with to the bumper afterbody from less to more from the collision termination.

7. classification buffer-type bumper as claimed in claim 1 is characterized in that: the obround elements bucket of bumper afterbody, circular cell bucket and bumper snubber and its pre-glove in interior ground are connected and fixed.

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