Non-Newtonian fluid adjustable speed bump

Abstract

The invention discloses a non-Newtonian fluid adjustable speed bump and belongs to the technical field of road traffic safety facilities. The non-Newtonian fluid adjustable speed bump comprises a rubber bag, a front protective edge, a rear protective edge, and bottom plates; the front protective edge and the rear protective edge are arranged in relatively parallel and are fixedly connected throughthe bottom plates; spring support plates are welded between the inner side of the front protective edge and the bottom plate as well as between the inner side of the rear protective edge and the bottom plate; the rubber bag is arranged in a cavity enclosed by the spring support plates and the bottom plates and is filled with non-Newtonian fluid, and the rubber bag is pasted to the bottom plates.The non-Newtonian fluid adjustable speed bump is simple and compact in structure, allows driving through at low speed to be accompanied by slight impact and driving through at high speed to be accompanied with severe impact, enables a vehicle to be driven through at decreased speed with slight impact, and allows for automatically constrained driving speed accordingly.

Description

technical field [0001] The invention relates to a non-Newtonian fluid adjustable speed bump, in particular to a speed bump with elastic cushioning, which utilizes the rheological characteristics of a shear-thickening non-Newtonian fluid whose viscosity increases with the shear rate to realize that the impact strength changes with the driving speed. An adjustable speed bump belongs to the technical field of road traffic safety facilities. Background technique [0002] The speed bump is a traffic facility installed on the road to slow down the passing vehicles. The shape is generally strip, point, round table, etc. The material is mainly rubber, cement, and cast steel. It is one of the vertical speed control measures. By changing the road The height or material of a certain section forces motor vehicles to slow down according to psychological and physiological principles to achieve the purpose of safety. The common rubber deceleration belt is designed according to the princip...

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Problems solved by technology

The common rubber deceleration belt is designed according to the principle of interaction between the tire and the outer contour of the special rubber pad when the vehicle is running. The rubber deceleration belt has the characteristics of shock absorption and compression resistance, and has the advantages of less wear on the vehicle tire, low noise, and elegant appearance. However, rubber speed bumps have problems such as easy aging and mechanical damage, and the bolts left after the damage will cause great damage to the vehicle tires, and even pose a safety hazard

The cast steel deceleration belt is made of special steel, with a load-bearing capacity of more than 200 tons, strong wear resistance, large load-bearing gravity, no deformation, and a service life that is 5 to 10 times that of rubber deceleration pads. Severe impact and other problems; cement speed bumps are generally used for rural roads, underground garages or entrances and exits of residential areas, and there are problems such as difficulty in dismantling and severe impact when vehicles pass by

The above-mentioned deceleration belts all have problems such as the vertical height cannot be adjusted, the vibration impact intensity does not change much when driving at different speeds, and the impact energy cannot be effectively buffered. With the increasing number of cars in my country, the pressure on driving safety is also increasing. The market is very There is a need for an adjustable deceleration belt that has soft and slight impact when passing the speed limit, strong impact when passing over the speed limit, and can adapt to different vehicle speeds

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