CN101818486A - Road decelerating ridge without rigid shock and flexible shock - Google Patents

Abstract

The invention provides a road deceleration ridge which has neither rigid impact nor flexible impact on the vehicle. The deceleration ridge is composed of a plurality of deceleration block units. The top is flat and the slopes on both sides are sinusoidal surfaces to ensure that when the vehicle passes through the deceleration ridge, it will not be subjected to either violent rigid impact or flexible impact, and the damage of vibration to the vehicle and the deceleration ridge will be minimized. As long as the driver actively reduces the speed of the vehicle, he can smoothly drive through the deceleration ridge of the present invention, and the vibration to the personnel and goods on the vehicle is relatively light. When high-speed vehicles pass through this deceleration ridge, large bumps will occur, which makes people feel very uncomfortable. The invention solves the problems of large impact, vibration and noise pollution of the surrounding environment when the existing deceleration ridge collides with the vehicle, and only punishes the overspeeding driver, thereby ensuring the driving comfort of the low-speed vehicle and achieving the effect of traffic tranquilization. The deceleration ridge of the invention is simple to manufacture and lay out, and can be used as a replacement product for the current road deceleration ridge.

Description

Road deceleration ridge with neither rigid impact nor soft impact

technical field

The invention relates to a deceleration ridge used on roads, in particular to a road deceleration ridge which has neither rigid impact nor flexible impact on vehicles, allows low-speed vehicles to pass by smoothly, and ensures the safety of on-board cargo.

Background technique

In recent years, my country's road traffic has developed rapidly, and the number of motor vehicles has continued to increase. However, there are more and more traffic accidents caused by excessive speed and out-of-control vehicles, and the road traffic safety situation is extremely severe. Studies have found that there is a close relationship between driving speed and traffic safety. Vehicle speeding not only easily leads to traffic accidents, but also increases the severity of accidents.

As a mandatory special facility for road traffic safety, road deceleration ridges are widely used in residential communities and highways, and play an important role in controlling vehicle speed, curbing traffic accidents, and ensuring driving safety. However, most of the road deceleration ridges currently in use are arc-shaped in longitudinal section, generally narrow in width, and unreasonable in height. When a vehicle passes by, it will be bumped heavily, which will have an impact on the shock absorber, suspension system and wheels of the vehicle. Larger, seriously affecting the comfort of passengers, but also greatly increasing the physiological and psychological load of the driver.

When the vehicle passes the deceleration ridge, the impact of the jumping vehicle on the ground will cause the buildings on both sides of the road to vibrate and cause noise pollution. The regular collision between the wheel and the deceleration ridge not only causes the loosening and displacement of the deceleration ridge, but also affects the service life of the vehicle and the deceleration ridge. In fact, the structure and size of the road deceleration ridge have an important impact on the ride comfort and safety of the vehicle. Therefore, it is necessary to innovatively design the shape of the deceleration ridge from the perspective of reducing the impact of the road deceleration ridge on the wheels.

Contents of the invention

The present invention aims at the problems that the existing road deceleration ridges cause great impact and vibration to the vehicle, which affects the ride comfort and safety of the vehicle, and provides a road deceleration that has neither rigid nor flexible impact on the vehicle and has an obvious speed-limiting effect. Ridge.

The technical solution adopted in the present invention is: a road deceleration ridge that has neither rigid impact nor flexible impact on the vehicle is composed of a plurality of deceleration block units, and the plane or arc surface on both sides of the existing deceleration ridge is replaced by a sinusoidal curved surface . It is characterized in that the section shape of the deceleration block unit in the width and height directions is approximately trapezoidal, the top of the section is a horizontal straight line, the two sides are sinusoidal curves, and the bottom is a horizontal straight line.

In the above scheme, the equation of the sinusoidal curve of the rising section of the deceleration block is: y=H[(x/L ₁ )-sin(2πx/L ₁ )/2π], where H is the height of the deceleration block, and x is the The starting point A of the sinusoidal curve is the origin and the horizontal displacement along the forward direction of the vehicle, and _L1 is the projected length of the sinusoidal curve on the horizontal plane.

In the above solution, the equation of the horizontal straight line in the constant velocity section of the deceleration block is: y=H, and the projected length of the straight line on the horizontal plane is L ₂ .

In the above scheme, the equation of the sinusoidal curve in the descending section of the deceleration block is: y=H[1-(x/L ₃ )+sin(2πx/L ₃ )/2π], where x is the starting point of the sinusoidal curve The projection point of C on the bottom surface of the deceleration block is the origin and the horizontal displacement along the forward direction of the vehicle, and _L3 is the projected length of the sinusoidal curve on the horizontal plane.

In the above solution, the material of the deceleration block can be industrial rubber, polymer material or cast steel, or other materials with high mechanical strength and impact toughness.

In the above solution, bolts for fixing the deceleration block on the road surface are also included.

Effect: Compared with the deceleration ridge widely used on the road at present, the feature of the present invention is that when the vehicle passes, it will not receive rigid impact or soft impact, and the damage of vibration to the vehicle and the deceleration ridge will be minimized. Thereby prolonging the service life of the vehicle and the deceleration ridge. In the direction perpendicular to the road surface, the vehicle has slowly changing speed and acceleration characteristics. As long as the driver actively reduces the speed of the vehicle, he can smoothly drive through the deceleration ridge of the present invention. And when the vehicle running at high speed passes through the deceleration ridge, there will be larger bumps. The invention solves the problems of large impact, vibration and noise pollution in the surrounding environment when the existing deceleration ridge collides with the vehicle, only punishes the overspeeding driver, and ensures the comfort and safety of the drivers, passengers and goods of the low-speed vehicle, and the speed limit effect is obvious. It can be used as a replacement product for the current road deceleration ridge.

Description of drawings

Fig. 1 is the sectional view of deceleration ridge of the present invention in width and height direction;

Fig. 2 is when the vehicle passes through the deceleration ridge of the present invention, the speed change rule of the wheel shaft vertical direction;

Fig. 3 is when the vehicle passes through the deceleration ridge of the present invention, the acceleration change law in the vertical direction of the wheel shaft.

In the figure: 1. The sinusoidal curve of the ascending section, 2. The straight line of the constant speed section, 3. The sinusoidal curve of the descending section, 4. The horizontal straight line at the bottom, 5. The fixing bolt.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Referring to Fig. 1, the deceleration ridge of the present invention is composed of a plurality of deceleration block units, the section shape of each deceleration block unit in the width and height directions is approximately trapezoidal, the top of the section is a section of horizontal straight line 2, and both sides are sinusoidal curves 1 and 3, the bottom is a horizontal line 4. The projected lengths of the two sinusoidal curves 1 and 3 on the horizontal plane have the following relationship: L ₁ =L ₃ =(0.25˜0.58)L. The size of the horizontal line 4 at the bottom can be taken as L=500-700 mm, the height of the deceleration block can be taken as H=(0.09-0.22)L, the length can be taken as (1.5-1.7)L, and the length of the straight line 2 of the constant velocity section can be taken as _L2 =(0.15- 0.35) L. The centerline of the counterbore at the bolt 5 is located on the symmetric line in the length direction of the deceleration block, and the horizontal distance from the lowest end A or D of the deceleration block is L ₄ =(0.09～0.22)L. The material of the deceleration block is industrial rubber, polymer material or cast steel, or other materials with high mechanical strength and impact toughness.

It can be seen from Fig. 2 and Fig. 3 that when a vehicle passes through the deceleration ridge of the present invention, it has gentle speed and acceleration characteristics in the direction vertical to the road surface, and the sinusoidal curved slopes on both sides of the deceleration ridge ensure that passing vehicles will not be subject to violent rigid impacts. Also not subject to flex impact. The sinusoidal surface slope can be sprayed with yellow and black colors to attract visual attention. It can also print logos, business information, etc. with reflective effects, thus becoming a new type of outdoor advertising carrier. At night or in other low-visibility conditions, the text or patterns with reflective effects can also serve as a warning to passers-by and drivers.

The deceleration ridge installation method: set the deceleration ridge of the present invention horizontally on the road that needs to be decelerated, determine the number of deceleration blocks that need to be installed according to the width of the road surface, and fix each deceleration block on the road surface with two bolts, and the bolt holes are counterbores. It is lower than the surface of the deceleration ridge and does not affect the traffic of vehicles. By continuously bonding and fastening the deceleration block units along the lateral direction of the road surface into a strip-shaped deceleration ridge, the road deceleration ridge of the present invention has neither rigid impact nor flexible impact on the vehicle.

Claims (6)

1. one kind had not both been had the road speed ridge that rigid shock does not have soft impulse yet to vehicle, combine by a plurality of deceleration module units, it is characterized in that, wide, the high direction section configuration of deceleration module unit is similar to trapezoidal, and the top of section is that one section horizontal linear (2), both sides are that sine curve (1,3), bottom are one section horizontal linears (4).

2. deceleration ridge according to claim 1 is characterized in that, the equation of described deceleration piece ascent stage sine curve (1) is: y=H[(x/L ₁)-sin (2 π x/L ₁)/2 π], wherein H is the height of deceleration piece, x be the starting point A with sine curve (1) be initial point, along the horizontal movement of vehicle forward direction, L ₁Be the projected length of sine curve (1) at horizontal plane.

3. deceleration ridge according to claim 1 is characterized in that, the described deceleration piece at the uniform velocity equation of section horizontal linear (2) is: y=H, straight line (2) is L in the projected length of horizontal plane ₂

4. deceleration ridge according to claim 1 is characterized in that, the equation of described deceleration piece descending branch sine curve (3) is: y=H[1-(x/L ₃)+sin (2 π x/L ₃)/2 π], wherein x be the subpoint of starting point C on deceleration piece bottom surface with sine curve (3) be initial point, along the horizontal movement of vehicle forward direction, L ₃Be the projected length of sine curve (3) at horizontal plane.

5. according to claim 1 a kind ofly both do not had the road speed ridge that rigid shock does not have soft impulse yet to vehicle, it is characterized in that, the material of each deceleration piece adopts industrial rubber, macromolecular material or cast steel, or other have the material of higher mechanical strength and impact toughness.

6. according to the arbitrary claim of claim 1 to 4 is described vehicle had not both been had the road speed ridge that rigid shock does not have soft impulse yet, its feature also comprises and is used for the deceleration piece is fixed on bolt (5) on the road surface.

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