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CN-121976484-A - Road deceleration strip device with buffer structure

CN121976484ACN 121976484 ACN121976484 ACN 121976484ACN-121976484-A

Abstract

The invention discloses a road deceleration strip device with a buffer structure, which comprises a deceleration device and a bottom bin which are distributed from top to bottom, wherein one ends, close to each other, of the deceleration device and the bottom bin are respectively provided with an opening, the deceleration device is detachably and hermetically arranged on the bottom bin, the top of the deceleration device is made of deformed materials, a piston plate is arranged on the inner side of the bottom bin, an inlet pipe and an outlet pipe are communicated with the bottom of the end wall of the bottom bin, and an inlet valve and an outlet valve are communicated with each other.

Inventors

  • YU JIANGUO

Assignees

  • 玉建国

Dates

Publication Date
20260505
Application Date
20260324

Claims (8)

  1. 1. The road deceleration strip device with the buffer structure is characterized by comprising a deceleration device (2) and a bottom bin (3) which are distributed from top to bottom, wherein one ends, close to each other, of the deceleration device (2) and the bottom bin (3) are all provided with openings, the deceleration device (2) is detachably and hermetically installed on the bottom bin (3), meanwhile, the top of the deceleration device (2) is made of a deformation material, a piston plate (4) is arranged on the inner side of the bottom bin (3), an inlet pipe is arranged at the bottom of the end wall of the bottom bin (3) in a communicating manner, an inlet valve (34) is arranged on the inlet pipe in a communicating manner, in addition, the piston plate (4) is positioned above the inlet pipe, and shear thickening fluid is filled in a space formed by the piston plate (4), the bottom bin (3) and the deceleration device (2).
  2. 2. The road deceleration strip device with the buffer structure according to claim 1, characterized in that the deceleration device (2) comprises a connecting frame (21) and a rubber strip (22), wherein the rubber strip (22) is of an arc-shaped structure with two closed ends and an opening at the bottom, and the connecting frame (21) is installed at the opening of the rubber strip (22).
  3. 3. The road deceleration strip device with the buffer structure according to claim 2, characterized in that a plurality of connecting columns (25) are arranged at the joint of the rubber belt (22) and the connecting frame (21), counter bores (26) are arranged at the positions of the connecting columns (25), and the bottom threads of connecting bolts (23) arranged at the counter bores (26) are inserted into the bottom bin (3).
  4. 4. A road deceleration strip device with a buffering structure according to claim 3, characterized in that a plurality of first reinforcing ribs (24) are provided on the inner side wall of the rubber strip (22), and a plurality of second reinforcing ribs are provided on the outer side wall of the rubber strip (22), the first reinforcing ribs (24) being provided along the circumferential direction of the rubber strip (22), and the second reinforcing ribs being provided along the length direction of the rubber strip (22).
  5. 5. A road deceleration strip device with a buffer structure according to claim 3, characterized in that the bottom bin (3) comprises a frame (31) and a plurality of side wall plates (32), and the side wall plates (32) are distributed and paved on the inner side of the frame (31) to form a bin body with an opening at the top.
  6. 6. The road deceleration strip apparatus with buffering structure according to claim 5, characterized in that a plurality of screw grooves (33) are provided on the upper side surface of the frame (31), and the bottom screw of the connecting bolt (23) is inserted into the screw grooves (33).
  7. 7. The road deceleration strip device with buffer structure according to claim 5, characterized in that the piston plate (4) comprises a blocking plate (42) and a bottom frame (41) mounted on the blocking plate (42), the blocking plate (42) and the vertical side walls of the bottom frame (41) are provided with sealing layers (43), and the sealing layers (43) are in contact with the side wall plates (32).
  8. 8. The road deceleration strip device with the buffer structure according to claim 1, characterized in that the bottom bin (3) is buried in the road surface (1), a shaft is buried at one end of the bottom bin (3) provided with the inlet and outlet valve (34), and the deceleration device (2) is located above the road surface (1).

Description

Road deceleration strip device with buffer structure Technical Field The invention relates to the field of deceleration strips, in particular to a road deceleration strip device with a buffer structure. Background In road traffic management, the deceleration strip is an important facility for guaranteeing pedestrian safety and reducing traffic accident occurrence rate, and is widely applied to personnel-intensive areas such as schools, residential communities, hospitals and the like and accident-prone road sections. By forcing the vehicle to decelerate, the potential safety hazard caused by the running speed of the vehicle is effectively reduced. However, most of the road deceleration strips on the market are relatively single in structure, and are usually made of hard rubber or metal into strip-shaped protruding forms. However, the road deceleration strip widely used in the market currently has limitations in structural design, and most of the road deceleration strip is in a strip-shaped protruding structure made of hard rubber or metal materials. This simple construction exposes a number of drawbacks during actual use. From the analysis of mechanics principle, when a vehicle passes through the deceleration strip at a low speed of 5-10km/h, the contact time between the vehicle tire and the deceleration strip is short and the acting force is concentrated due to the lack of deformation buffering capacity of rubber or metal materials, so that the peak value of the impact force in the vertical direction can reach 3-5 times that of normal running. If the vehicle passes at a speed of more than 20km/h, the impact force increases exponentially, and the measured data show that when the vehicle speed reaches 30km/h, the instantaneous stress born by the suspension system can exceed 120% of the design safety threshold. The long-term use of such a deceleration strip can cause significant damage to critical components of the vehicle. According to statistics of vehicle engineering research institutions, the oil leakage failure rate of a shock absorber of a suspension system of a vehicle frequently passing through a traditional hard deceleration strip is higher than that of a normally running vehicle by 47%, the abnormal wear rate of a tire tread is improved by 63%, and the fatigue fracture risk of a spring is increased by 2.8 times. For commercial vehicles, the loss is more obvious, and the fatigue life of the half axle of the rear axle is shortened by about 15 percent every time a heavy truck passes through a 1000 times conventional speed reducing belt. In terms of riding comfort, the deceleration strip has serious defects. According to the ergonomics study, when the vehicle generates vertical acceleration exceeding 1.2g, the lumbar vertebra and the cervical vertebra of a driver can bear abnormal pressure, and the risk of chronic lumbar and cervical diseases can be obviously increased through the traditional deceleration strip frequently. From the above, even if the vehicle passes through the deceleration strip at a low speed, the conventional structure cannot avoid damage to the vehicle due to impact force. If a deceleration strip with an effective buffering function can be developed, the state can be changed when the vehicle passes at a low speed, so that the impact force between the vehicle and the deceleration strip is reduced, the damage to the vehicle is greatly reduced, the service life of the vehicle is prolonged, and the comfort of drivers and passengers is improved. The urgency and importance of developing a novel road deceleration strip with a buffer structure are also highlighted. Disclosure of Invention The invention aims to provide a road deceleration strip device with a buffer structure, which aims to solve the problem that a vehicle passes through a deceleration strip at a low speed and has a large impact force with the vehicle due to the fact that the deceleration strip is made of a hard material. The road deceleration strip device with the buffer structure comprises a deceleration device and a bottom bin which are distributed from top to bottom, wherein one ends, close to each other, of the deceleration device and the bottom bin are all provided with openings, the deceleration device is detachably and hermetically installed on the bottom bin, meanwhile, the top of the deceleration device is made of deformed materials, a piston plate is arranged on the inner side of the bottom bin, an inlet pipe and an outlet pipe are communicated with the bottom of the end wall of the bottom bin, meanwhile, an inlet valve and an outlet valve are communicated with each other on the inlet pipe, the piston plate is positioned above the inlet pipe, and shear thickening fluid is filled in a space formed by the piston plate, the bottom bin and the deceleration device. Preferably, the speed reduction device comprises a connecting frame and a rubber belt, wherein the rubber belt is of an arc-shaped structure with two closed en