Novel deceleration ridge with traffic flow detection function

Abstract

The utility model provides a novel speed reduction ridge with a traffic flow detection function. The novel speed reduction ridge comprises a base, a T-shaped structure shell, a sliding block, a wheel shaft, a buffering mechanism and a pressure sensor. The T-shaped structure shell is arranged on the base, the sliding block is arranged in the T-shaped structure shell, the upper edge of the sliding block makes contact with the lower surface of the T-shaped structure shell, the lower edge of the sliding block makes contact with a near-axis point of the wheel shaft, the wheel shaft is rotationally connected to the base, and a far-axis point of the wheel shaft makes contact with the upper surface of the buffering mechanism. The buffer mechanism is composed of an upper half part, a lower half part and a spring part, the upper half part is nested in the lower half part, and the spring part is installed in the upper half part and the lower half part which are nested; and the lower half part is electrically connected with a pressure sensor. According to the utility model, the characteristics of the deceleration ridge are fully studied, and the deceleration ridge is redesigned by combining the design principle and the structure of the existing deceleration ridge, so as to meet the acquisition requirements of traffic flow data, not only play the role of the conventional deceleration ridge, but also play the role of measuring the traffic volume.

Description

TECHNICAL FIELD

[0001] The utility model relates to modern traffic technical field especially, a kind of novel speed hump with traffic flow detection function. BACKGROUND

[0002] With the vigorous development of traffic engineering field, urban traffic has made great progress, and traffic flow continues to increase, so it is necessary to monitor traffic volume and collect data.

[0003] Because motor vehicle flow has the characteristics of wide coverage and high degree of freedom, when collecting traffic flow data, it is often only collected on site or recorded by monitoring equipment and unmanned aerial vehicle, and then manually sorted. This method is time-consuming and labor-intensive, and there is also the defect that only the latest traffic data can be found. UTILITY MODEL CONTENT

[0004] In view of the above deficiencies of the prior art, a novel speed hump with traffic flow detection function is provided, which fully researches the characteristics of the speed hump and redesigns the speed hump based on the existing design principles and structure to meet the collection of traffic flow data. It not only plays the role of conventional speed hump, but also measures traffic volume.

[0005] Therefore, the utility model provides a novel speed hump with traffic flow detection function, which comprises a base, a T-shaped structure shell, a sliding block, an axle, a buffer mechanism and a pressure sensor.

[0006] The T-shaped structure shell is arranged on the base, the sliding block is arranged inside the T-shaped structure shell, the upper edge of the sliding block is in contact with the lower surface of the T-shaped structure shell, the lower edge of the sliding block is in contact with the proximal point of the axle, the axle is rotatably connected to the base, and the distal point of the axle is in contact with the upper surface of the buffer mechanism.

[0007] The buffer mechanism comprises an upper half, a lower half and a spring portion, the upper half is nested in the lower half, and the spring portion is installed inside the nested upper half and lower half.

[0008] The axle comprises an axle portion and a support portion, the axle portion is arranged at one end of the support portion, the axle is fixed to the base through the axle portion and rotates around the base, the proximal point of the support portion is in contact with the lower edge of the sliding block, and the distal point of the support portion is in contact with the upper surface of the buffer mechanism.

[0009] The upper half part comprises an upper smooth part and an upper cylindrical part, the upper smooth part is arranged on the upper surface of the upper cylindrical part, the upper smooth part is a square structure, and the upper surface of the upper smooth part is in contact with the lower surface of the distal end of the wheel shaft; the lower half part comprises a lower smooth part and a lower cylindrical part, the lower smooth part is arranged on the lower surface of the lower cylindrical part, the lower smooth part is electrically connected with a pressure sensor and fixed on a base; the upper cylindrical part is nested in the inside of the lower cylindrical part, and the outer wall of the upper cylindrical part is in contact with the inner wall of the lower cylindrical part.

[0010] The spring part adopts a plurality of groups of springs, the elastic coefficient of the springs is 50, the springs are arranged in the internal space between the upper half part and the lower half part, and the two ends of the springs are in contact with the upper half part and the lower half part respectively.

[0011] The pressure sensor is arranged at the position where the spring part is in contact with the lower half part.

[0012] The pressure sensor adopts a capacitive pressure sensor.

[0013] The beneficial effects generated by the above technical scheme are that the novel speed bump with traffic flow detection function has low manufacturing cost, long service life, strong applicability, is suitable for the whole traffic field, the internal structure of the speed bump is designed to measure traffic flow, excessive waste of manpower, material resources and financial resources is avoided, resource waste is caused, cost is greatly reduced, and the working efficiency of detecting traffic flow is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A structure schematic view of the novel speed bump with traffic flow detection function is provided for the embodiment of the utility model;

[0015] Figure 2 A structure main view of the novel speed bump with traffic flow detection function is provided for the embodiment of the utility model;

[0016] Figure 3 A base structure schematic view is provided for the embodiment of the utility model;

[0017] Figure 4 A T-shaped structure shell structure schematic view is provided for the embodiment of the utility model;

[0018] Figure 5 A slider structure schematic view is provided for the embodiment of the utility model;

[0019] Figure 6 A structure schematic view of the novel speed bump with traffic flow detection function is provided for the embodiment of the utility model; Figure 2 A structure schematic view of the novel speed bump with traffic flow detection function is provided for the embodiment of the utility model;

[0020] Figure 7The axle structure schematic view provided by the utility model embodiment;

[0021] Figure 8 The structure schematic view of the base, axle and buffer structure provided by the utility model embodiment;

[0022] Figure 9 The upper half structure schematic view of the buffer mechanism provided by the utility model embodiment;

[0023] Figure 10 The lower half structure schematic view of the buffer mechanism provided by the utility model embodiment.

[0024] In the figure: 1, base; 2, T-shaped structure shell; 3, sliding block; 4, axle; 5, buffer mechanism; 51, upper half; 52, lower half. DETAILED DESCRIPTION

[0025] The specific implementation of the utility model will be described in further detail below in combination with the drawings and embodiments.

[0026] Referring to Figures 1 to 10 The embodiment provides a novel speed bump with traffic flow detection function, which comprises a base 1, a T-shaped structure shell 2, a sliding block 3, an axle 4, a buffer mechanism 5 and a pressure sensor; wherein,

[0027] As Figure 3 The base 1 is arranged on the ground of a working area and is fixed on the ground by screws. The base 1 is in square structure, and two holes are formed in the edges of the symmetric two sides and correspond to the holes formed on the T-shaped structure shell 2. The base 1 and the T-shaped structure shell are connected together by arranging bolts in the holes, so that the base 1 and the T-shaped structure shell 2 are fixed in position and combined together. The base 1 is arranged on the ground, so that the speed bump does not cause excessive damage to the road surface. The T-shaped structure shell 2 is arranged on the base 1, so that the speed bump looks the same as the conventional speed bump. The two sides of the base 1 are respectively provided with shaft seats for connecting the axle 4.

[0028] As Figure 4 The T-shaped structure shell 2 is arranged on the base 1, and the sliding block 3, the axle 4, the buffer mechanism 5 and the pressure sensor are wrapped inside to prevent damage. The T-shaped structure shell 2 is not different from the conventional speed bump in the prior art, and to some extent, avoids the sudden stop driving behavior of the driver due to seeing the abnormal facilities on the road surface. The T-shaped structure shell 2 is made of rubber or metal material, and the surface has patterns or convex points to increase friction. The width is 300mm-400mm, and the height is 25mm-70mm. The cross section in the height and width directions is approximately trapezoidal.

[0029] As Figure 5As shown, the slider 3 is arranged inside the T-shaped structure shell 2, the upper edge of the slider 3 is in contact with the lower surface of the T-shaped structure shell 2, and the lower edge of the slider 3 is in contact with the proximal point of the axle 4. When the car passes, the T-shaped structure shell 2 deforms, the slider 3 is pushed down, the downward force of the axle 4 compresses the spring in the buffer mechanism 5, when the car wheel leaves the speed bump, the buffer mechanism 5 resets, the axle 4 is lifted up, and the slider 3 is reset. The slider 3 is a square structure with a groove, the groove is directed towards the axle 4, and its size is just enough to fit into the space reserved in the T-shaped structure shell 2; the lower edge of the slider 3 is in contact with the proximal point of the axle 4 and is lifted up by it.

[0030] As shown in Figure 6 , Figure 7 and Figure 8 , the axle 4 is rotatably connected to the base 1, the proximal point of the axle 4 is in contact with the slider 3, and the distal point of the axle 4 is in contact with the buffer mechanism 5. Specifically, the axle 4 includes a shaft portion and a support portion, the shaft portion is arranged at one end of the support portion, the axle 4 is fixed to the base 1 through the shaft portion and can rotate around the base 1; the proximal point of the support portion is in contact with the slider 3, and the distal point of the support portion is in contact with the upper surface of the buffer mechanism 5. The axle 4 is in the form of a blade and forms a structure similar to a force lever with the slider 3, thereby effectively reducing a part of the impact force in the first link of force transmission, providing space for pressure sensor selection, and also protecting the speed bump through such internal structure change, thereby prolonging the service life of the speed bump.

[0031] As shown in Figure 9 and Figure 10As shown, the upper end of the buffer mechanism 5 is in contact with the lower surface of the distal point of the support part, and the lower end of the buffer mechanism 5 is fixed on the base 1. The buffer mechanism 5 is composed of an upper half part 51, a lower half part 52 and a spring part; wherein the upper half part 51 is nested in the lower half part 52, and the spring part is installed inside the nested upper half part 51 and lower half part 52; the lower half part 52 is electrically connected with a pressure sensor. When the automobile passes through the T-shaped structure shell 2, the T-shaped structure shell 2 generates pressure on the passing slider 3 and the wheel shaft 4, thereby compressing the buffer mechanism 5, causing the relative displacement of the upper half part 51 and the lower half part 52, and the friction between the contact parts of the two, generating the second heavy resistance; the upper half part 51 compresses the internal spring part, and through the third heavy buffer of the spring part, finally transmits the pressure to the pressure sensor connected with the lower half part 52; when the automobile tire leaves the T-shaped structure shell 2, the spring part restores to the original state, so that the upper half part 51 pressed into the lower half part 52 is reset, and then the wheel shaft 4 and the slider 3 are reset. Specifically, the upper half part 51 includes an upper smooth part and an upper cylindrical part, the upper smooth part is arranged on the upper surface of the upper cylindrical part, the upper smooth part is a square structure, the upper surface of the upper smooth part is in contact with the lower surface of the distal point of the wheel shaft 4, the design of increasing the stress area can not only reduce the pressure but also buffer the wheel shaft 4, preventing the buffer mechanism 5 from damaging the surface of the wheel shaft 4; the lower half part 52 includes a lower smooth part and a lower cylindrical part, the lower smooth part is arranged on the lower surface of the lower cylindrical part, the lower smooth part is electrically connected with the pressure sensor and fixed on the base 1; the upper cylindrical part is nested inside the lower cylindrical part, the outer wall of the upper cylindrical part is in contact with the inner wall of the lower cylindrical part, and the friction is generated at the same time of the relative displacement, wherein the outer diameter of the upper cylindrical part is approximately equal to the inner diameter of the lower cylindrical part, so as to achieve the effect of increasing the friction. The spring part adopts a plurality of springs, the spring coefficient of the spring is 25-50, the spring is arranged in the internal space between the upper half part 51 and the lower half part 52, and the two ends of the spring are in contact with the upper half part 51 and the lower half part 52 respectively; when the compression length exceeds 5.5mm, the buffer mechanism 5 will be locked in time to avoid excessive compression to damage the internal deceleration ridge device.

[0032] The pressure sensor is arranged at the contact position of the spring part and the lower half part 52, and adopts a capacitive pressure sensor. The capacitive pressure sensor has the advantages of low power consumption, no temperature drift problem, high sensitivity, solid structure and less influence of external stress. In the capacitive pressure sensor, the movable diaphragm serves as one electrode of the capacitor, and the other electrode is arranged on the substrate below the elastic diaphragm. When the movable diaphragm is deformed due to external pressure, the distance between the two electrodes of the capacitor changes, thereby causing the change of the capacitance.

[0033] The working principle of the novel deceleration ridge with traffic flow detection function is as follows:

[0034] The slider 3 is nested in the T-shaped structure shell 2 as the upper part of the speed bump, the two wheel shafts 4 are respectively installed in the hollow of the base 1 as the middle part of the speed bump, and finally the spring of the buffer mechanism 5 is fixed in the lower half 52 and the upper half 51 of the buffer mechanism 5 is nested on it to form the complete buffer mechanism 5. The pressure sensor is connected with the lower half 52 of the buffer mechanism 5 and fixed on the corresponding position of the base 1. The buffer mechanism 5 and the pressure sensor form the lower part of the speed bump. Such devices have two groups and are arranged in the center symmetrically in the speed bump. The fixed wheel shaft 4 is placed on the upper surface of the upper half 51 of the buffer mechanism 5, and the upper half 51 of the buffer mechanism 5 is pre-smoothed to match the wheel shaft 4 to ensure that the wheel shaft 4 can be smoothly pushed by the slider 3. The assembled upper half 51 is covered on the base 1, and the internal expansion anchor fixing technology is used. The screw is passed through the screw hole reserved in the T-shaped structure shell 2 and the base 1 to firmly fix them on the ground.

[0035] When the wheels of the car run through the T-shaped structure shell 2, the upper surface of the T-shaped structure shell 2 deforms slightly, pushing the slider 3 to move downward, and the lower edge of the slider 3 extrudes the near-axis point of the two wheel shafts 4, causing the wheel shaft 4 to move slightly downward and compress the buffer mechanism 5 at the far-axis point. The upper half 51 of the buffer mechanism 5 is in contact with the far-axis point of the wheel shaft 4 and has a smooth part made in advance, which can effectively avoid the misalignment of the buffer mechanism 5 and the wheel shaft 4. The upper half 51 and the lower half 52 of the buffer mechanism 5 are nested with each other, and the spring with a spring constant of 50 is placed in the middle. When the compression length exceeds 5.5 mm, the buffer mechanism 5 will be locked in time to avoid excessive compression damage to the inside of the speed bump device. The lower half 52 of the buffer mechanism 5 finally transmits the impact force to the pressure sensor device. When the output value is less than 35, it is recorded as 0.5 small cars, and when the output value is greater than or equal to 35, it is recorded as 0.5 large cars. The power supply line of the whole device is connected with the nearby signal lamp or solar device to ensure its energy supply. The design life of the speed bump is 5 times that of the ordinary rubber speed bump, about 5 years. During this period, if road maintenance renovation, asphalt removal and other construction activities are encountered, the entire speed bump can be removed and reused on the newly repaired road without the need to modify the road surface.

Claims

1. A novel speed hump with traffic flow detection function, characterized in that, Including base, T type structure shell, slider, axle, buffer mechanism and pressure sensor, wherein, The T type structure shell is arranged on the base, the slider is arranged in the inside of the T type structure shell, the upper edge of the slider is in contact with the lower surface of the T type structure shell, the lower edge of the slider is in contact with the proximal point of the axle, the axle is rotatably connected on the base, and the distal point of the axle is in contact with the upper surface of the buffer mechanism, The buffer mechanism is composed of an upper half, a lower half and a spring part, the upper half is nested in the lower half, and the spring part is installed in the nested upper half and lower half; the lower half is electrically connected with the pressure sensor.

2. The novel speed hump with traffic flow detection function according to claim 1, characterized in that, The axle includes an axle part and a support part, the axle part is arranged at one end of the support part, the axle is fixed on the base through the axle part and rotates around the base; the upper surface of the proximal point of the support part is in contact with the lower edge of the slider, and the lower surface of the distal point of the support part is in contact with the upper surface of the buffer mechanism.

3. The novel speed hump with traffic flow detection function according to claim 1, characterized in that, The upper half includes an upper smooth part and an upper cylindrical part, the upper smooth part is arranged on the upper surface of the upper cylindrical part, the upper smooth part is a square structure, and the upper surface of the upper smooth part is in contact with the lower surface of the distal point of the axle; the lower half includes a lower smooth part and a lower cylindrical part, the lower smooth part is arranged on the lower surface of the lower cylindrical part, the lower smooth part is electrically connected with the pressure sensor and fixed on the base; the upper cylindrical part is nested in the inside of the lower cylindrical part, and the outer wall of the upper cylindrical part is in contact with the inner wall of the lower cylindrical part.

4. The novel speed hump with traffic flow detection function according to claim 3, characterized in that, The spring part adopts a plurality of groups of springs, the elastic coefficient of the spring is 25-50, the spring is arranged in the internal space between the upper half and the lower half, and the two ends of the spring are respectively in contact with the upper half and the lower half.

5. The novel speed hump with traffic flow detection function according to claim 1, characterized in that, The pressure sensor is arranged at the position where the spring part and the lower half are in contact.

6. The novel speed hump with traffic flow detection function according to claim 1, wherein, The pressure sensor adopts a capacitive pressure sensor.

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