CN211897945U

CN211897945U - Pedestrian crossing safety facility based on non-Newtonian fluid

Info

Publication number: CN211897945U
Application number: CN201922266601.8U
Authority: CN
Inventors: 赵瑞松; 杜光; 赵孝勇; 李高峰; 邵俊豪; 王佼佼; 刘青意
Original assignee: Wisdri Engineering and Research Incorporation Ltd; Wisdri Urban Construction Engineering Technology Co Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd; Wisdri Urban Construction Engineering Technology Co Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-11-10
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a pedestrian crossing safety facility based on non-Newtonian fluid, which comprises a speed reducing body, a groove and a reset mechanism, wherein the speed reducing body is of a hollow structure and is internally provided with the non-Newtonian fluid; the lower part of the speed reducing body is arranged in a groove arranged on the ground, and the upper part of the speed reducing body protrudes out of the ground; the bottom of the groove is provided with a plurality of expansion grooves at intervals along the radial direction, the radial direction and the outward direction, each expansion groove is provided with a group of reset mechanisms and exhaust pipes communicated with the atmosphere, one end of each reset mechanism is fixed with each expansion groove, and the other end of each reset mechanism is connected with the outer side of the speed reducing body. The utility model has the advantages that: the utility model discloses utilize non-Newton fluidic "meet strong then just, meet weak then gentle" physical characteristic, the design speed reduction body rolls the process when the motor vehicle rolls fast, and the internal non-Newton fluid of speed reduction is hard as iron, can not take place deformation, has effectual speed reduction effect of jolting to the motor vehicle, has guaranteed pedestrian's safety.

Description

Pedestrian crossing safety facility based on non-Newtonian fluid

Technical Field

The utility model relates to an urban road safety facility, concretely relates to pedestrian crosses street safety facility based on non-Newtonian fluid.

Background

With the acceleration of the urbanization process, the traffic pressure of urban roads is continuously increased, and meanwhile, traffic safety accidents of pedestrians and motor vehicles are also caused. Pedestrians serving as vulnerable traffic groups are one of important components of urban traffic, and in the pedestrian crossing process, the loss of personal and property safety of the pedestrians is caused mostly due to the high driving speed of motor vehicles; meanwhile, the ordinary pedestrian crossing street only has facilities such as pedestrian zebra crossings, traffic lights and the like, and the safety of the pedestrian crossing street depends too much on the quality of the motor vehicle driver. Therefore, the pedestrian crossing zebra crossing needs to be improved, the running speed of the motor vehicle is reduced, and the safety of the pedestrian is guaranteed.

Disclosure of Invention

An object of the utility model is to provide a pedestrian crossing street safety device based on non-Newtonian fluid that can avoid the motor vehicle to go speed too high on the zebra crossing to prior art not enough.

The utility model adopts the technical proposal that: a pedestrian crossing safety facility based on non-Newtonian fluid comprises a speed reducing body, a groove and a reset mechanism, wherein the speed reducing body is of a hollow structure, and the interior of the speed reducing body is filled with the non-Newtonian fluid; the lower part of the speed reducing body is arranged in a groove arranged on the ground, and the upper part of the speed reducing body protrudes out of the ground; the bottom of the groove is provided with a plurality of expansion grooves at intervals along the radial direction, the radial direction and the outward direction, each expansion groove is provided with a group of reset mechanisms and exhaust pipes communicated with the atmosphere, one end of each reset mechanism is fixed with each expansion groove, and the other end of each reset mechanism is connected with the outer side of the speed reducing body.

According to the scheme, the speed reducing body comprises a cylinder structure arranged in the groove and an arc surface body structure protruding out of the ground, the arc surface body structure is composed of an annular section at the lower part and an arc surface section connected with the outer edge of the annular section, and the annular section is connected with the ground through four expansion bolts uniformly arranged at intervals in the circumferential direction; the top of the column structure is connected with the inner edge of the arc-shaped section; the ring segment is connected with the ground through expansion bolts.

According to the scheme, the reset mechanism comprises the baffle and the reset spring, one end of the reset spring is fixedly connected with the inner wall of the expansion groove, the other end of the reset spring is connected with the baffle, and the baffle is in contact with the outer side of the lower part of the cylinder structure.

According to the scheme, the baffle is the arc-shaped plate matched with the outer wall of the column structure, and the baffle can be tightly attached to the outer wall of the column structure due to the design of the arc-shaped plate.

According to the scheme, the column body structure comprises an elastic wrapping layer and a rubber protective layer from inside to outside; the part of the column structure, which is positioned at the expansion groove, is only provided with an elastic wrapping layer; the baffle of the reset mechanism is directly contacted with the elastic wrapping layer of the cylinder structure.

According to the scheme, the annular section of the cambered surface body structure comprises an elastic wrapping layer and a rubber protective layer from inside to outside; the cambered surface section of the cambered surface body structure comprises an elastic wrapping layer, a rubber protective layer and an anti-slip layer from inside to outside.

According to the scheme, the anti-skid layer is provided with the corrugated grooves which are made of light-reflecting materials.

According to the scheme, a hard sleeve is arranged in the exhaust pipe; the upper port of the exhaust pipe is provided with a filtering grid.

The utility model has the advantages that:

1. the utility model designs the speed reducer by using the physical characteristics of the non-Newtonian fluid that the non-Newtonian fluid is rigid when meeting strong and flexible when meeting weak, when the motor vehicle rolls and passes through rapidly, the non-Newtonian fluid in the speed reducer is hard as iron, can not deform, and has effective jolting and speed reducing effect on the motor vehicle; when the motor vehicle runs and rolls at a low speed, the non-Newtonian fluid in the speed reducer is extruded and deformed like liquid, and is extruded to the expansion groove by combining with the use of the expansion groove, the surface height of the speed reducer is reduced to be flush with the ground, and the motor vehicle can stably pass through. The structural design can reduce the speed of the motor vehicle passing through the zebra stripes under the condition of not influencing the passing of the vehicle, thereby ensuring the safety of pedestrians; meanwhile, the motor vehicle driver is promoted to develop a good driving habit and runs slowly when passing through the zebra crossing.

2. The utility model discloses the upper portion design of well speed reduction body is camber body structure, and the speed reduction body staggered arrangement of front and back row has effectively increased the speed reduction area, reduces the speed of traveling of motor vehicle on the zebra crossing, ensures pedestrian's safety of crossing the street.

3. The expansion tank effectively utilizes the physical characteristics of the non-Newtonian fluid, and does not influence the form of the non-Newtonian fluid under the hard state of the non-Newtonian fluid; under the soft state of the non-Newtonian fluid, the extruded non-Newtonian fluid is filled into the expansion groove through the baffle and the return spring, and after the motor vehicle runs, the return mechanism returns the non-Newtonian fluid to the original position so as to ensure the next deceleration effect of the deceleration body.

4. The corrugated groove on the anti-skid layer increases the friction force with the tire of the motor vehicle, and prevents the vehicle from skidding in rainy and snowy weather; meanwhile, the surface of each corrugated groove is made of a reflective material, so that motor vehicles and pedestrians can be effectively prompted at night.

5. The utility model provides a speed reduction body is independent individual, does not need a whole set of dismantlement during replacement maintenance, only to need the monomer of handling carry out the operation can, convenient to use maintenance is swift.

Drawings

Fig. 1 is a schematic view of the overall arrangement of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic view of the embodiment when the vehicle rolls slowly.

Fig. 4 is a sectional view a-a in fig. 2.

Fig. 5 is a sectional view taken along line B-B in fig. 2.

Fig. 6 is a schematic diagram showing a specific arrangement position of the decelerating bodies in the embodiment.

Wherein: 1. a decelerating body; 2. an anti-slip layer; 3. a rubber protective layer; 4. an elastic wrapping layer; 5. a non-Newtonian fluid; 6. an expansion bolt; 7. an exhaust pipe; 8. a capacity expansion slot; 9. a return spring; 10. a baffle plate; 11. a tangent point A; 12. a tangent point C; 13. a tangent point B; 14. a tangent point D; 15. a tangent point E; 16. the center of the decelerating body.

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.

A non-Newtonian fluid 5 based pedestrian crossing safety device is shown in figure 1 and is arranged on one side of a pedestrian crossing zebra crossing in the direction of a vehicle. As shown in fig. 2 to 5, the pedestrian crossing safety facility comprises a speed reducing body 1, a groove and a reset mechanism, wherein the speed reducing body 1 is of a hollow structure, and a non-Newtonian fluid 5 is filled in the speed reducing body 1; the lower part of the speed reducing body 1 is arranged in a groove arranged on the ground, and the upper part of the speed reducing body 1 protrudes out of the ground; and a plurality of expansion grooves 8 are formed in the bottom of the groove at intervals along the radial direction, the radial direction and the outward direction, each expansion groove 8 is provided with a group of reset mechanisms and exhaust pipes 7 communicated with the atmosphere, one end of each reset mechanism is fixed with the corresponding expansion groove, and the other end of each reset mechanism is connected with the outer side of the speed reducing body 1.

In this embodiment, there are four expansion slots 8, which are integrally formed rubber slots and evenly spaced along the circumferential direction of the groove. The exhaust pipe 7 is internally provided with a hard sleeve and can also be a steel sleeve, so that the rolling of the motor vehicle cannot deform the motor vehicle, and smooth exhaust is ensured; the upper end of the exhaust pipe 7 is provided with a filtering grid (preferably a wire grid) to prevent the pipe orifice from being blocked.

Preferably, the speed reducer 1 comprises a cylinder structure arranged in the groove and an arc surface body structure protruding out of the ground, the arc surface body structure consists of an annular section at the lower part and an arc surface section connected with the outer edge of the annular section, and the annular section is connected with the ground through four expansion bolts 6 uniformly arranged at intervals in the circumferential direction; the top of the column structure is connected with the inner edge of the arc-shaped section; the ring segments are connected to the ground by expansion bolts 6.

Preferably, the reset mechanism comprises a baffle 10 and a reset spring 9, one end of the reset spring 9 is fixedly connected with the inner wall of the containing groove 8, the other end of the reset spring 9 is connected with the baffle 10, and the baffle 10 is in contact with the outer side of the lower part of the column structure. Preferably, the baffle 10 is an arc-shaped plate matched with the outer wall of the column structure, and the baffle 10 can be tightly attached to the outer wall of the column structure due to the design of the arc-shaped plate.

Preferably, the column structure comprises an elastic wrapping layer 4 and a rubber protection layer 3 from inside to outside; the part of the column structure, which is positioned at the expansion tank 8, is only provided with the elastic wrapping layer 4 so as to adapt to the change of the form of the non-Newtonian fluid 5; the baffle 10 of the resetting mechanism can be directly contacted with the elastic wrapping layer 4 of the column body structure.

Preferably, the annular section of the cambered surface body structure comprises an elastic wrapping layer 4 and a rubber protection layer 3 from inside to outside; the cambered surface section of the cambered surface body structure comprises an elastic wrapping layer 4, a rubber protective layer 3 and an anti-slip layer 2 from inside to outside. In the embodiment, the anti-skid layer 2 is covered on the surface of the rubber protective layer 3 through super glue, and a plurality of irregular corrugated grooves are arranged on the anti-skid layer 2; the corrugated groove is made of a reflective material, and reflective paint can be smeared on the surface of the anti-skid layer 2 to replace the corrugated groove. The exhaust pipe 7 is led out through the rubber protective layer 3.

In the embodiment, the speed reducing bodies 1 are arranged on one side of the crosswalk zebra crossing coming direction, and the speed reducing bodies 1 are at least arranged in two rows and are arranged in a staggered manner from front to back; the diameter of the projection of the speed reducer 1 on the horizontal plane is consistent with the width of the zebra crossing of the pedestrian crossing; because the width of a single pedestrian zebra crossing is generally 40-50 cm, the projection diameter of the speed reducer 1 on the horizontal plane is 40-50 cm. As shown in fig. 6, the center 16 of the decelerating body 1 is located on the midline of the zebra crossing or the zebra crossing interval. The tangent point A11 and the tangent point B13 of the decelerating body 1 on the central line of the zebra stripes are aligned with the edge lines of the zebra stripes, and the tangent point C12 of the decelerating body 1 on the alternate central line of the zebra stripes is aligned with the tangent point D14 of the decelerating body 1; the tangential point E15 of the decelerating body 1 located on the alternate center line of the zebra stripes is aligned with the outer edge line of the zebra stripes.

As shown in fig. 3, when the motor vehicle passes through the speed reducer at a slow speed, the cambered surface structure on the upper part of the speed reducer 1 is rolled, the non-newtonian fluid 5 is extruded in a liquid state, the bottom of the cylindrical structure deforms, the baffle 10 and the return spring 9 in the expansion groove 8 are extruded, the expansion groove 8 is filled with the non-newtonian fluid 5 wrapped by the elastic wrapping layer 4, and the height of the cambered surface structure on the upper part of the speed reducer 1 is reduced.

The utility model utilizes the physical characteristics of non-Newtonian fluid 5 that the fluid is rigid when strong and flexible when weak, when the motor vehicle rolls rapidly, the non-Newtonian fluid 5 is hard as iron in the elastic wrapping layer 4, and does not deform, which produces strong jolting and speed reducing effect for the motor vehicle running rapidly; the cambered surface body structure and the non-linear arrangement form of the upper part of the speed reducing body 1 increase the speed reducing area of the motor vehicle. When the motor vehicle runs at a low speed and passes through the rolling mill, the non-Newtonian fluid 5 is extruded and deformed in the elastic wrapping layer 4 like liquid, the non-Newtonian fluid 5 is extruded to the expansion groove 8 by combining with the use of the expansion groove 8, the surface height of the speed reducing body 1 is reduced to be flush with the ground, the motor vehicle stably passes through the speed reducing body, after the motor vehicle runs through the speed reducing body, the return spring 9 applies pressure to the baffle plate 10 to restore the non-Newtonian fluid 5 to the original position, and the use effect of the speed reducing body 1 of the non-Newtonian fluid 5 is ensured.

It should be noted that the above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or some technical features can be replaced with equivalents, but any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A pedestrian crossing safety facility based on non-Newtonian fluid is characterized by comprising a speed reducing body, a groove and a reset mechanism, wherein the speed reducing body is of a hollow structure and is internally filled with the non-Newtonian fluid; the lower part of the speed reducing body is arranged in a groove arranged on the ground, and the upper part of the speed reducing body protrudes out of the ground; the bottom of the groove is provided with a plurality of expansion grooves at intervals along the radial direction, the radial direction and the outward direction, each expansion groove is provided with a group of reset mechanisms and exhaust pipes communicated with the atmosphere, one end of each reset mechanism is fixed with each expansion groove, and the other end of each reset mechanism is connected with the outer side of the speed reducing body.

2. The non-Newtonian fluid-based pedestrian crossing safety facility according to claim 1, wherein the decelerating body comprises a cylindrical structure disposed in the groove and an arc surface body structure protruding out of the ground, the arc surface body structure is composed of a lower annular section and an arc surface section connected with the outer edge of the annular section, and the annular section is connected with the ground through four expansion bolts uniformly arranged at intervals in the circumferential direction; the top of the column structure is connected with the inner edge of the arc-shaped section; the ring segment is connected with the ground through expansion bolts.

3. The non-Newtonian fluid based pedestrian crossing safety facility of claim 1, wherein the return mechanism comprises a baffle plate and a return spring, one end of the return spring is fixedly connected with the inner wall of the expansion groove, the other end of the return spring is connected with the baffle plate, and the baffle plate is in contact with the outer side of the lower part of the column structure.

4. A non-newtonian fluid based pedestrian crossing safety as claimed in claim 3 wherein the barrier is an arcuate plate adapted to the outer wall of the cylindrical structure, the arcuate plate being configured to allow the barrier to conform closely to the outer wall of the cylindrical structure.

5. A non-newtonian fluid based pedestrian crossing safety as claimed in claim 2 wherein the column structure comprises an inner-to-outer elastic wrap and a rubber protective layer; the part of the column structure, which is positioned at the expansion groove, is only provided with an elastic wrapping layer; the baffle of the reset mechanism is directly contacted with the elastic wrapping layer of the cylinder structure.

6. A non-newtonian fluid based pedestrian crossing safety as claimed in claim 2 wherein the hoop section of the cambered surface body structure comprises an inner to outer elastic wrap and a rubber protective layer; the cambered surface section of the cambered surface body structure comprises an elastic wrapping layer, a rubber protective layer and an anti-slip layer from inside to outside.

7. The non-Newtonian fluid-based pedestrian crossing safety facility of claim 6, wherein the skid-resistant layer is provided with corrugated grooves, and the corrugated grooves are made of a light-reflecting material.

8. A non-newtonian fluid-based pedestrian crossing safety as claimed in claim 1, wherein a rigid sleeve is built into the exhaust pipe; the upper port of the exhaust pipe is provided with a filtering grid.