CN112195831A

CN112195831A - Drum-type highway guardrail

Info

Publication number: CN112195831A
Application number: CN202011115482.7A
Authority: CN
Inventors: 卢福成
Original assignee: 卢福成
Current assignee: DONGYING ZHONGDA PETROLEUM EQUIPMENT Co.,Ltd.
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-01-08
Anticipated expiration: 2040-10-19
Also published as: CN112195831B

Abstract

The invention relates to the technical field of road safety, and discloses a drum-type highway guardrail, which comprises upright columns, wherein the upper ends of the upright columns are fixedly connected with middle shafts, the outer side walls of the middle shafts are movably connected with rotary drums through bearings, and any one of the middle shafts is fixedly connected with a railing. This drum-type highway guardrail, provide good guide ability through the rotation, it is the same with the guardrail direction to pull the car direction, along with the rotation of rotary drum, connecting rod and sucking disc stretch out, hold the automobile body and the rear of a vehicle part of car, reduce car forward velocity, secondly, this guardrail is through the fluidic shock energy-absorbing of pivoted frictional force and cushion capsule, the injury that guardrail itself received is less, rotate guide ability through the rotary drum and unload the ability, further reduce the probability that the guardrail damaged, therefore, when the vehicle of being out of control initiatively utilizes the guardrail to slow down, can play the speed reduction effect, can avoid driver's steering wheel corner too big road surface of rushing out again.

Description

Drum-type highway guardrail

Technical Field

The invention relates to the technical field of road safety, in particular to a drum-type highway guardrail.

Background

The highway is usually a semi-rigid guardrail, and when a vehicle collides with the guardrail, the highway can deform and absorb energy to reduce the damage to the vehicle, and on the other hand, forcibly corrects the driving direction of the vehicle to prevent the vehicle from rushing out of the road. However, since the vehicles on the highway run faster and have very large kinetic energy, the function of the guardrail is extremely limited, and the vehicles do not collide the guardrail and rush out of the road, or rush out reversely, and collide other vehicles running normally on the road, thereby causing more accidents.

In order to enhance the anti-impact capability and energy dissipation capability of the guardrail, the guardrail when a roller appears on the market enhances the guiding capability of the guardrail, the original impact energy concentrated at one position can be dispersed to a longer distance from one end, the impact strength received at a single position is greatly reduced, the impact injury received by a vehicle can be effectively reduced, however, the influence interval of out-of-control vehicles is increased by the guardrail, the probability of causing secondary accidents is greatly increased, meanwhile, because the impact can hardly generate energy conversion instantly, the vehicle still carries larger kinetic energy when being ejected reversely, and the strength of the secondary accidents can also be increased.

Further, on the expressway, accidents caused by brake failure occur, so an emergency lane for braking is arranged on the expressway, but since the emergency lane is not arranged on all road sections, in the road sections without the emergency lane, stall may only impact the guardrail to reduce the kinetic energy of the vehicle, but deceleration can be realized by impacting the guardrail, but the guardrail may be out of control or damaged.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides a technical scheme of a drum-type highway guardrail, which has the advantages of strong energy absorption capacity, good guiding effect and the like and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a drum-type highway guardrail, includes the stand, the upper end fixedly connected with axis of stand, centraxonial lateral wall has the rotary drum, any through bearing swing joint the equal fixedly connected with railing of axis, the lateral wall of rotary drum is connected with the sucking disc through the telescopic connecting rod, centraxonial lateral wall is equipped with the locating piece of inverted circular truncated cone shape, the axial displacement drive connecting rod for the rotary drum of locating piece is flexible, centraxonial surface and the internal surface of rotary drum are equipped with screw-thread fit cooperation section of thick bamboo and drive block respectively, the inside wall of rotary drum is equipped with and restricts connecting rod radial movement's cushion capsule hugging closely with the connecting rod, the lateral wall of rotary drum is equipped with the friction bag.

Preferably, the buffer bag is filled with a swelling plastic fluid, the liquid level of the internal fluid is higher than that of the uppermost connecting rod but is not filled with the buffer bag, and the buffer bag is filled with high-pressure gas.

Preferably, the inner side of the connecting rod is fixedly connected with an arc-shaped limiting block, the limiting block is tightly attached to the lower side of the positioning block under the elastic force of the buffering bag, and the inner surface of the limiting block and the surface of the positioning block are both arranged roughly.

Preferably, both ends of the middle shaft are provided with a matching cylinder and bearings, the two bearings are positioned at the inner sides of the two matching cylinders, a gap larger than the width of the matching cylinder is reserved between the upper bearing and the matching cylinder, and the inclined plane sections of the matching cylinder, the driving block and the positioning block have the same thickness.

Preferably, the bottom of the positioning block is provided with a cylindrical section, when the matching cylinder is completely screwed out of the driving block, the limiting block is just attached to the cylindrical section of the positioning block, and at the moment, the outer ring of the bearing is separated from the inner wall of the rotary cylinder.

The invention has the following beneficial effects:

1. this drum-type highway guardrail, when the guardrail was just adorned to the car, it is the same with ordinary guardrail, provide good guide ability through the rotation, it is the same with the guardrail direction to pull the car direction, along with the rotation of rotary drum, connecting rod and sucking disc stretch out, hold the automobile body and the rear of a vehicle part of car, along with holding at every turn, release, absorb the kinetic energy of vehicle fast, make the car stop in shorter distance, reduce the influence range of the vehicle out of control, secondly, owing to hold the automobile body through the sucking disc, the probability that the vehicle was popped out in the reverse direction has also been reduced, further reduce the probability of taking place the secondary accident.

2. This drum-type highway guardrail, for current guardrail deformation energy-absorbing and ordinary cylinder guardrail can not the energy-absorbing, this guardrail passes through the fluidic shock energy-absorbing of pivoted frictional force and buffer bag, the injury that guardrail itself received is less, rotate the direction ability through the rotary drum and unload the ability, further reduce the probability that the guardrail damaged, consequently, when the vehicle initiative when out of control utilizes the guardrail to slow down, can play the speed reduction effect, can avoid the driver steering wheel corner too big road surface of rushing out again.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a view showing the effect of the installation of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

fig. 4 is a schematic view of the center shaft structure in the present invention.

In the figure: 1. a column; 2. a railing; 3. a middle shaft; 4. a rotating drum; 5. a connecting rod; 6. a suction cup; 7. a drive block; 8. a fitting barrel; 9. positioning blocks; 10. a bearing; 11. a buffer bag; 12. a friction bag; 13. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a drum-type highway guardrail comprises a vertical column 1, wherein the upper end of the vertical column 1 is fixedly connected with a center shaft 3, the outer side wall of the center shaft 3 is movably connected with a rotary drum 4 through a bearing 10, the bearing 10 is used for keeping the centering of the rotary drum 4, the bearing 10 can slide up and down, the rotary drum 4 can freely rotate around the center shaft 3, any center shaft 3 is fixedly connected with a railing 2, the upper end and the lower end of the rotary drum 4 are respectively provided with the railing 2, all the center shafts 3 are connected into a whole, any one of the center shafts is impacted, impact force is evenly distributed on each center shaft 3, the impact resistance is improved, the outer side wall of the rotary drum 4 is connected with a plurality of suckers 6 through telescopic connecting rods 5, the suckers 6 are evenly distributed on the outer side wall of the rotary drum 4, the connecting rods 5 are made of elastic materials, the automobile is prevented from being damaged by overlarge impact, the connecting rod 5 is hinged with the sucker 6 to ensure that the sucker can be sucked on the automobile at any angle, the outer side wall of the middle shaft 3 is provided with a positioning block 9 in an inverted truncated cone shape, the positioning block 9 is axially displaced relative to the rotary drum 4 to drive the connecting rod 5 to stretch, the outer surface of the middle shaft 3 and the inner surface of the rotary drum 4 are respectively provided with a thread fit matching cylinder 8 and a driving block 7, under the action of thread fit, the rotary drum 4 can be driven to axially move by relative rotation of the middle shaft 3 and the rotary drum 4, the driving block 7 stops axial movement after moving out of a fit range, the inner side wall of the rotary drum 4 is provided with a buffer bag 11 which is tightly attached to the connecting rod 5 and limits radial movement of the connecting rod 5, on one hand, the sucker 6 in an initial state is kept in a retraction state, on the other, the outer side wall of the rotating drum 4 is provided with a friction bag 12 which rubs with the automobile, so that the impact of the automobile is buffered, and the rotating drum 4 is ensured to rotate along with the advance of the automobile.

Wherein, the buffer bag 11 is filled with the plastic swelling fluid, the liquid level of the fluid inside is higher than the height of the uppermost connecting rod 5 but is not filled with the buffer bag 11, the buffer bag 11 adopts the bag body with smaller elasticity, the lower over-expansion caused by the dead weight of the fluid is avoided, the unfilled space is convenient for the oscillation of the fluid, the impact energy is converted into the heat energy of the fluid, the buffer bag 11 is filled with the high-pressure gas, and the gas makes the buffer bag 11 always in the expansion state, so that the connecting rod 5 is in the retraction state.

Referring to fig. 3, an arc-shaped stopper 13 is fixedly connected to the inner side of the connecting rod 5, the stopper 13 is tightly attached to the lower side of the positioning block 9 under the elastic force of the buffer bag 11, the inner surface of the stopper 13 and the surface of the positioning block 9 are both arranged roughly, and when the rotary drum 4 rotates, the friction between the positioning block 9 and the stopper 13 is changed into friction energy, so that the energy absorption capacity is enhanced.

Referring to fig. 4, both ends of the middle shaft 3 are provided with a matching cylinder 8 and bearings 10, the two bearings 10 are located inside the two matching cylinders 8, so that the bearings 10 can move in the rotary drum 4, a gap larger than the width of the matching cylinder 8 is left between the upper bearing 10 and the matching cylinder 8, so that the movement of the rotary drum 4 is not interfered, the inclined surface sections of the matching cylinder 8, the driving block 7 and the positioning block 9 have the same thickness, and when the positioning block 9 reaches a predetermined position, the matching cylinder 8 just unscrews from the driving block 7.

Wherein, the bottom of locating piece 9 is equipped with the cylinder section, when cooperation section of thick bamboo 8 was during in the drive block 7 was unscrewed completely, stopper 13 pasted the cylinder section of tight locating piece 9 just, and the outer loop of bearing 10 breaks away from the contact with the inner wall of rotary drum 4 this moment, the inner wall of rotary drum 4 here is equipped with the recess, it is unsettled to make bearing 10, rely on the centering of stopper 13 of a plurality of directions to guarantee rotary drum 4 and around axis 3 rotatory this moment, amplify the radial displacement of axis 3 and rotary drum 4, alleviate the impact force to axis 3 production, alleviate the burden of bearing 10 simultaneously.

The working principle and the working process of the invention are as follows:

when an automobile collides with a guardrail, the rotary drum 4 is rotated by acting force, the friction force between the friction bag 12 and the automobile is reversely used for guiding the automobile, the automobile is put down in the same direction as the guardrail, the loss kinetic energy is smaller at the moment, the rotary drum 4 moves upwards along with the rotation of the rotary drum 4 to drive the connecting rod 5 and the sucker 6 to move upwards, the limiting block 13 is tightly attached to the cylindrical section of the positioning block 9, the sucker 6 extends out to suck the side surface of the automobile, the sucker 6 is forcibly pulled away along with the movement of the automobile, the rotary drum 4 rotates by a moving angle, the other group of suckers 6 suck the automobile body, the kinetic energy of the automobile is rapidly consumed, when the automobile pulls the suction cup 6 open, the acting force is transferred to the connecting rod 5, the connecting rod 5 quickly compresses the buffer bag 11, because the speed is higher at this moment, the contact position is approximately solid, the connecting rod 5 is reversely hindered from moving, the kinetic energy is converted into the oscillation of fluid in the buffer bag 11, and the direct acting force on the middle shaft 3 and the rotary drum 4 is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a drum-type highway guardrail, includes stand (1), its characterized in that: the upper end of the upright post (1) is fixedly connected with a middle shaft (3), the outer side wall of the middle shaft (3) is movably connected with a rotary drum (4) through a bearing (10), any middle shaft (3) is fixedly connected with a railing (2), the outer side wall of the rotary drum (4) is connected with a sucker (6) through a telescopic connecting rod (5), the outer side wall of the middle shaft (3) is provided with a positioning block (9) in an inverted frustum shape, the axial displacement of the positioning block (9) relative to the rotary drum (4) drives the connecting rod (5) to extend and retract, the outer surface of the middle shaft (3) and the inner surface of the rotary drum (4) are respectively provided with a thread matching drum (8) and a driving block (7), the inner side wall of the rotary drum (4) is provided with a buffer bag (11) which is tightly attached to the connecting rod (5) and limits the radial movement of the connecting rod (5), the outer side wall of the rotating drum (4) is provided with a friction bag (12) which rubs with an automobile.

2. The roller-type highway guardrail of claim 1, wherein: the buffer bag (11) is filled with swelling plastic fluid, the liquid level of the internal fluid is higher than that of the uppermost connecting rod (5) but is not filled with the buffer bag (11), and the buffer bag (11) is filled with high-pressure gas.

3. A roller-type highway guardrail as defined in claim 2, wherein: the inboard fixedly connected with curved stopper (13) of connecting rod (5), stopper (13) are pasted tightly with the downside of locating piece (9) under the elasticity of buffering bag (11), the equal coarse setting in surface of the internal surface of stopper (13) and the surface of locating piece (9).

4. A roller-type highway guardrail as set forth in claim 3, wherein: the two ends of the middle shaft (3) are respectively provided with a matching cylinder (8) and a bearing (10), the two bearings (10) are positioned on the inner sides of the two matching cylinders (8), a gap larger than the width of the matching cylinder (8) is reserved between the bearing (10) and the matching cylinder (8) above the middle shaft, and the inclined plane sections of the matching cylinder (8), the driving block (7) and the positioning block (9) are the same in thickness.

5. The roller-type highway guardrail of claim 4, wherein: the bottom of the positioning block (9) is provided with a cylindrical section, when the matching cylinder (8) is completely screwed out of the driving block (7), the limiting block (13) is just tightly attached to the cylindrical section of the positioning block (9), and at the moment, the outer ring of the bearing (10) is separated from the inner wall of the rotary cylinder (4).