CN118257220A - Drum-type rotary guardrail capable of identifying impact position - Google Patents

Abstract

The invention discloses a drum-type rotary guardrail capable of identifying an impact position, and belongs to the field of drum-type guardrails. The utility model provides a rotary guardrail of cylinder of identifiable striking position, includes the stand and fixes the locating lever at the stand both ends, rotatory sleeve joint cylinder on the stand, the surge bin has been seted up at the cylinder middle part, just the cylinder is located between two locating levers from top to bottom, still includes: the anti-collision assembly is arranged in the roller and used for absorbing impact force generated by collision between the vehicle and the roller; the positioning mechanism is used for identifying and positioning the impact position of the vehicle and the roller; according to the invention, through the cooperation among the energy guide rod, the guide slide rod, the energy absorption slide block, the first spring and the second spring, impact force generated by vehicle impact can be converted into elastic potential energy, so that the impact force is absorbed, and the elastic potential energy is utilized to rebound, so that the outwards reverse thrust force is given to the roller, the impact force of the vehicle is further neutralized, the impact force is effectively reduced, and the anti-collision effect is improved.

Description

Drum-type rotary guardrail capable of identifying impact position

Technical Field

The invention relates to the technical field of drum-type guardrails, in particular to a drum-type rotary guardrail capable of identifying an impact position.

Background

The drum type rotating guardrail is a road safety facility, and is generally used on an expressway or other roads, aiming at reducing traffic accidents and protecting the safety of vehicles and passengers. The main feature of such a guardrail is that it is rotatable, consisting of a series of interconnected rollers, which are usually mounted on special brackets or frames. When a vehicle collides with the drum-type rotary guardrail, the guardrail can rotate due to the impact force of the vehicle, so that the speed of the vehicle is slowed down, the collision energy is absorbed, the vehicle and passengers are effectively protected, and the severity of traffic accidents is reduced.

The patent with the publication number of CN112195831B is named as a roller type highway guardrail, and the guardrail comprises a stand column, wherein the upper end of the stand column is fixedly connected with a central shaft, the outer side wall of the central shaft is movably connected with a rotary drum through a bearing, and any central shaft is fixedly connected with a railing. This drum-type highway guardrail provides good guiding capability through the rotation, traction car direction is the same with the guardrail direction, along with the rotation of rotary drum, connecting rod and sucking disc stretch out, the automobile body and the tail part of holding the car reduce the car speed of advancing, secondly, this guardrail is through the vibration energy-absorbing of pivoted frictional force and the interior fluidic of buffering bag, the injury that guardrail itself received is less, unload the ability through rotary drum rotation guiding capability, further reduce the probability that the guardrail damaged, consequently, when the vehicle initiative that runs away utilizes the guardrail to slow down, can play the deceleration effect, can avoid too big rushing out the road surface of driver steering wheel corner again.

The patent with the publication number of CN218291727U is named as a drum-type crash barrier, which comprises a group of cylindrical upright posts fixed on a mounting base surface, wherein a hollow elastic drum is sleeved at the middle part of each upright post, the drum can rotate by taking the upright post as an axis, foam aluminum energy absorbing plates are stuck on the outer wall of the drum, guardrail plates are arranged on the front side and the rear side of the upper part and the lower part of the drum along the driving direction, the guardrail plates are fixedly connected with the upright posts through connecting pieces, and the maximum distance between the front side guardrail and the rear side guardrail of each upright post is smaller than the diameter of the drum; the anti-collision guardrail of this scheme buffering energy-absorbing effect is good and weatherability is excellent.

For the prior patent, the following defects are also existed, namely, the energy absorption and the anti-collision are realized by the material of the roller, but the energy absorption and the anti-collision effects provided by the material of the roller are limited, and the energy absorption and the anti-collision effects for violent impact are general; moreover, after some vehicles are impacted violently, the driver is seriously injured, the driver is hard to save oneself and ask for help, the existing drum-type rotary guardrail cannot identify and position the impact position, the condition of untimely rescue is caused, and the life and property safety of the driver cannot be guaranteed. Accordingly, a drum-type rotating guardrail capable of identifying an impact position is proposed.

Disclosure of Invention

The invention aims to solve the problem that the prior art has a general energy-absorbing and anti-collision effect on violent impact; and the problem that the impact position cannot be identified and positioned to cause untimely rescue is solved, and the drum-type rotary guardrail capable of identifying the impact position is provided.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

The utility model provides a rotary guardrail of cylinder of identifiable striking position, includes the stand and fixes the locating lever at the stand both ends, rotatory sleeve joint cylinder on the stand, the surge bin has been seted up at the cylinder middle part, just the cylinder is located between two locating levers from top to bottom, still includes: the anti-collision assembly is arranged in the roller and used for absorbing impact force generated by collision between the vehicle and the roller; and the positioning mechanism is arranged in the roller and is used for identifying and positioning the impact position of the vehicle and the roller.

In order to improve the energy-absorbing effect, crashproof subassembly includes the direction slide bar, the energy-absorbing spout has been seted up to the surge bin inner wall, the direction slide bar is fixed in the energy-absorbing spout, the energy-absorbing slider has all been cup jointed in the slip of direction slide bar both sides outer wall, be provided with the energy-guiding pole between energy-absorbing slider lateral wall and the surge bin inner wall, the energy-guiding pole includes two sets of articulated seat and member body, be rotated between member body and the articulated seat of two sets of and be connected, two sets of articulated seat respectively with energy-absorbing slider lateral wall and surge bin inner wall between fixed connection, both sides equal fixedly connected with first spring between energy-absorbing slider and the energy-absorbing spout both ends, both sides fixedly connected with second spring between the energy-absorbing slider, just first spring and second spring all cup joint on the direction slide bar outer wall.

Further, the energy absorbing slide groove is annularly provided with a plurality of groups along the central shaft of the roller, and the structures arranged in each group of energy absorbing slide grooves are the same.

Furthermore, the upper and lower groups of energy guide rods are symmetrically arranged in a splayed shape, and the included angle range of the extension lines of the two groups of energy guide rods is 120-150 degrees.

In order to improve the anticollision effect, preferably, the storehouse of aerifing has all been seted up to the upper and lower part of cylinder, aerify the storehouse internal fixation and be connected with the ignition stick, every group all fixedly connected with gangbar on the lateral wall of energy-absorbing slider, two sets of in the same energy-absorbing spout the gangbar symmetry sets up, and two sets of in the top of gangbar runs through respectively and extends to both sides and aerifys in the storehouse, one side fixedly connected with ignition skin that the gangbar is close to the ignition stick, just ignition skin and the laminating of ignition stick tip are slided, aerify and be linked together through the air duct between storehouse and the energy-absorbing spout.

Further, two groups of air guide grooves are symmetrically arranged on each energy-absorbing sliding groove, the output ends of the air guide grooves are opposite to the end face of the energy-absorbing sliding block, and an air pressure valve is arranged in each air guide groove.

Still further, each five of the rollers are one set, and the positioning mechanism is disposed within the roller at the center of each set.

For conveniently identifying the impact position, preferably, the positioning mechanism comprises a trigger groove, the trigger groove is formed in the outer wall of the roller, two sides of the trigger groove are respectively communicated with the inner cavity of the buffer bin through an expansion groove, an elastic air bag is fixedly connected in the trigger groove, a positioning sensor is fixedly connected in the trigger groove, and the positioning sensor and the trigger groove are respectively arranged at two sides of the elastic air bag.

Further, the outer end part of the trigger groove is fixedly connected with an access board through a screw.

In order to improve safety, preferably, the upper and lower parts of the outer wall of the roller are provided with reflective grooves, and reflective strips are stuck in the reflective grooves.

Compared with the prior art, the invention provides the drum-type rotary guardrail capable of identifying the impact position, which has the following beneficial effects:

1. This can discern rotatory guardrail of cylinder of striking position through the cooperation between energy-conducting rod, direction slide bar, energy-absorbing slider, first spring and the second spring, can be with the impact that the vehicle striking produced become elastic potential energy to this absorbs the impact, and utilizes the resilience effect of elastic potential energy, gives the outside reverse thrust of cylinder, further neutralizes the vehicle impact, has effectively reduced the striking dynamics, has improved crashproof effect.

2. According to the drum-type rotary guardrail capable of identifying the impact position, the ignition rod is contacted with the ignition skin and rubs through the sliding of the energy-absorbing sliding block, so that sodium azide in the inflation bin is ignited, a large amount of nitrogen is generated instantly by explosion of the sodium azide, and the sodium azide enters the buffering bin along the air guide groove, so that an expanded air pressure buffering effect is generated in the buffering bin, and the impact force generated during vehicle impact is reduced.

3. According to the drum-type rotary guardrail capable of identifying the impact position, the nitrogen impact force of the energy-absorbing sliding block is blown to the front side in the air guide groove to push the energy-absorbing sliding block to move reversely along the impact sliding direction, so that the reverse acting force is generated on the outer wall of the drum, the impact force generated during the vehicle impact is further reduced, and the energy-absorbing and anti-collision effects of the device are improved.

4. This but rotary guardrail of drum-type of discernment striking position, nitrogen gas in the surge bin will get into along the expansion tank and trigger the inslot, promotes the inflation of elasticity gasbag and contradict on the location sensor to this triggers the location sensor and to crossing the department transmission signal, and quick and accurate discernment location is carried out to the striking position, makes the road rescue arrive fast, has improved rescue efficiency, has ensured navigating mate's life and property safety.

5. This can discern rotatory guardrail of cylinder of striking position through dividing into a plurality of cylinders into a set of, and set up a positioning sensor in the middle part cylinder of every group to this can effectually reduce cost input, improve the rationality of device design.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a drum-type rotary guardrail capable of identifying an impact position according to the present invention;

FIG. 2 is a schematic view of a drum semi-section structure of a drum-type rotary guardrail capable of identifying an impact position according to the present invention;

FIG. 3 is a schematic view of the internal structure of a drum-type rotary guardrail capable of identifying the impact position according to the present invention;

FIG. 4 is an enlarged schematic view of the area A in FIG. 2 illustrating a drum-type rotating guardrail capable of identifying the impact position according to the present invention;

FIG. 5 is an enlarged view of the area B in FIG. 3 illustrating a drum-type rotating guardrail for identifying an impact position according to the present invention;

FIG. 6 is a schematic view of a partial cross-sectional configuration of a drum-type rotary guardrail capable of identifying an impact position according to the present invention;

FIG. 7 is a schematic view of a cross-sectional configuration of a drum-type rotary guardrail for identifying an impact position according to the present invention;

Fig. 8 is a schematic view of a transverse cross-section of a drum without a positioning sensor according to the present invention.

In the figure: 1. a column; 2. a positioning rod; 3. a roller; 31. a buffer bin; 32. an inflation bin; 33. a reflective trough; 4. an anti-collision assembly; 41. a guide slide bar; 42. energy absorption sliding grooves; 43. an energy-absorbing slide block; 44. an energy guiding rod; 441. a hinge base; 442. a rod body; 45. a first spring; 451. a second spring; 46. an ignition bar; 47. a linkage rod; 471. ignition skin; 48. an air guide groove; 5. a positioning mechanism; 51. a trigger slot; 52. an expansion tank; 53. an elastic air bag; 54. positioning a sensor; 55. and (5) an access panel.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Examples:

Referring to fig. 1-7, a drum-type rotary guardrail capable of identifying impact positions comprises an upright 1 and positioning rods 2 fixed at two ends of the upright 1, wherein a drum 3 is rotatably sleeved on the upright 1, the drum 3 is made of foamed aluminum, the foamed aluminum has metal and bubble characteristics, the anti-collision effect is met, the drum-type rotary guardrail also has extremely high impact absorption capacity, the energy absorption density reaches 4-20J per cubic centimeter, a buffer bin 31 is arranged in the middle of the drum 3, and the drum 3 is positioned between the upper positioning rod 2 and the lower positioning rod 2, so that a better energy absorption effect can be provided for a vehicle impacting on the drum 3, the impact force generated by the vehicle is effectively weakened, and the safety protection effect is improved; the upper and lower parts of the outer wall of the roller 3 are respectively provided with a reflective groove 33, and reflective strips are stuck in the reflective grooves 33, so that the running of vehicles can be effectively reminded of slowing down and slowing down, and the running safety of the vehicles is improved; further comprises: the anti-collision assembly 4 is arranged in the roller 3 and is used for absorbing impact force generated by collision between the vehicle and the roller 3; and the positioning mechanism 5 is arranged in the roller 3 and is used for identifying and positioning the impact position of the vehicle and the roller 3.

Referring to fig. 2, 3 and 6, the anti-collision assembly 4 includes a guiding slide bar 41, an energy absorbing slide groove 42 is formed in the inner wall of the buffer bin 31, the guiding slide bar 41 is fixed in the energy absorbing slide groove 42, the outer walls of two sides of the guiding slide bar 41 are both sheathed with energy absorbing slide blocks 43 in a sliding manner, energy guiding rods 44 are arranged between the side walls of the energy absorbing slide blocks 43 and the inner wall of the buffer bin 31, the upper group of energy guiding rods 44 and the lower group of energy guiding rods 44 are symmetrically arranged in a splayed manner, and the included angle of the extension lines of the two groups of energy guiding rods 44 ranges from 120 degrees to 150 degrees, specifically, when no impact is applied, the included angle of the extension lines of the two groups of energy guiding rods 44 is 120 degrees, and when the impact is applied, the included angle of the extension lines of the two groups of energy guiding rods 44 can reach 150 degrees; the energy guiding rod 44 comprises two groups of hinge bases 441 and a rod body 442, the rod body 442 is rotationally connected with the two groups of hinge bases 441, the two groups of hinge bases 441 are fixedly connected with the side wall of the energy absorbing sliding block 43 and the inner wall of the buffer bin 31 respectively, the two sides of the energy absorbing sliding block 43 are fixedly connected with the first springs 45 between the two ends of the energy absorbing sliding groove 42, the two sides of the energy absorbing sliding block 43 are fixedly connected with the second springs 451, and the first springs 45 and the second springs 451 are sleeved on the outer wall of the guide sliding rod 41.

Through the arrangement of the structure, after a vehicle collides with the roller 3, the outer wall of the roller 3 is deformed inwards under the action of impact force, so that the energy guide rod 44 is extruded, the two groups of energy absorbing sliding blocks 43 are pushed to reversely slide along the guide sliding rod 41, at the moment, the first spring 45 and the second spring 451 are both deformed simultaneously, certain elastic potential energy is stored in the first spring 45 and the second spring 451 during deformation, the stored elastic potential energy is converted by the impact force of the vehicle collision, the impact force is absorbed, the rebound effect after the impact force is absorbed by the first spring 45 and the second spring 451, and the energy guide rod 44 is also given to reversely push, so that the impact force is effectively reduced, and the anti-collision effect is improved.

Referring to fig. 7 and 8, a plurality of groups of energy absorbing sliding grooves 42 are annularly arranged along the central axis of the roller 3, and structures arranged in each group of energy absorbing sliding grooves 42 are the same, specifically, the number of the energy absorbing sliding grooves 42 arranged in the roller 3 provided with the positioning mechanism 5 is five, so that corresponding energy reducing and energy absorbing effects can be generated on each side surface of the roller 3 in the process of impacting and rotating, and the anti-collision effect of the device is effectively improved.

Referring to fig. 2-4, an air charging bin 32 is arranged at the upper and lower parts of the roller 3, sodium azide is filled in the air charging bin 32, an ignition rod 46 is fixedly connected in the air charging bin 32, the rod part of the ignition rod 46 is made of hard metal materials, the end part of the ignition rod 46 is made of wax oil and potassium chloride-containing medicines (similar to a matchhead component), a linkage rod 47 is fixedly connected to the side wall of each group of energy-absorbing sliding blocks 43, two groups of linkage rods 47 in the same energy-absorbing sliding groove 42 are symmetrically arranged, the top ends of the two groups of linkage rods 47 respectively penetrate and extend into the two side air charging bins 32, an ignition skin 471 is fixedly connected to one side, close to the ignition rod 46, of the linkage rod 47, made of red phosphorus and white phosphorus (similar to a matchbox side wall skin inserting component), the ignition skin 471 slides in an attaching manner with the end part of the ignition rod 46, the air charging bin 32 is communicated with the sliding groove 42 through an air guide groove 48, the two groups of the air guide grooves 48 are symmetrically arranged on each group of the air guide groove 48, the output ends of the air guide groove 48 are opposite to the end surfaces of the energy-absorbing sliding blocks 43, and air pressure valves 48 are arranged in the air guide grooves 48;

The air pressure valve in the air guide groove 48 can only be opened when pressure is generated in the air inflation bin 32, so that nitrogen generated in the air inflation bin 32 enters the buffer bin 31, and sodium azide in the air inflation bin 32 can be prevented from falling into the buffer bin 31 along the air guide groove 48.

Through the arrangement of the structure, in the sliding process of the energy-absorbing slide block 43, the linkage rod 47 is pushed to slide in the inflation bin 32, so that the ignition rod 46 contacts with the ignition skin 471 and rubs, powder at the end part of the ignition rod 46 is ignited (the content can refer to the ignition principle of matches), sodium azide in the inflation bin 32 explodes when encountering high-temperature flames, a large amount of nitrogen is instantaneously generated, so that the air pressure in the inflation bin 32 is increased, the air pressure valve in the air guide groove 48 is opened, the nitrogen is firstly filled into the buffer bin 31 along the air guide groove 48, the air pressure in the buffer bin 31 is increased, an expanding air pressure buffering effect is generated, the impact force generated when a vehicle is impacted is reduced, the nitrogen quantity generated by the sodium azide explosion instantaneously is far greater than the air guide quantity of the air guide groove 48, the nitrogen blown to the energy-absorbing slide block 43 from the air guide groove 48 has a certain force effect, the impact force is pushed by the nitrogen blown to the energy-absorbing slide block 43 along the air guide groove 48, and the impact force is further reduced, and the impact force of the impact-absorbing roll is further reduced when the impact-absorbing roll device is reversely impacted, and the impact-absorbing roll device is moved along the impact-absorbing roll 3.

Referring to fig. 2, 4 and 6, the positioning mechanism 5 includes a trigger slot 51, the trigger slot 51 is opened on the outer wall of the roller 3, two sides of the trigger slot 51 are respectively communicated with the inner cavity of the buffer bin 31 through an expansion slot 52, an elastic air bag 53 is fixedly connected in the trigger slot 51, a positioning sensor 54 is fixedly connected in the trigger slot 51, the positioning sensor 54 and the trigger slot 51 are respectively arranged on two sides of the elastic air bag 53, and the outer end part of the trigger slot 51 is fixedly connected with an access board 55 through a screw;

Through the arrangement of the structure, nitrogen gas entering the surge bin 31 can enter the trigger groove 51 along the expansion groove 52, so that air pressure in the expansion groove 52 is increased, the elastic air bag 53 is pushed to expand, the outer wall of the elastic air bag 53 is abutted against the positioning sensor 54, the positioning sensor 54 is triggered to transmit signals to the traffic management department, the impact position is quickly and accurately identified and positioned, road rescue is quickly achieved, rescue efficiency is improved, and life and property safety of drivers is guaranteed.

Referring to fig. 1,2 and 8, wherein each five rollers 3 is a group, the positioning mechanism 5 is disposed in each roller 3 at the center of each group, and the rest four rollers 3 each contain only the buffer bin 31 (refer to fig. 8 in particular), the buffer bins 31 are filled with anti-collision material, and the anti-collision assemblies 4 and the positioning mechanisms 5 are not disposed in the four rollers 3, namely, only one anti-collision assembly 4 and the positioning sensor 54 are disposed in each roller 3, in actual collision, the vehicle can strike a plurality of rollers 3 at the same time and slide forward along the rollers 3 for a certain distance, so that the positioning sensors 54 disposed in each roller 3 can increase the cost, and such interval arrangement can effectively reduce the cost investment and improve the design rationality; in addition, the number of the rollers 3 in each group can be adaptively adjusted according to the specific road condition.

Referring to fig. 1 to 7, in the present invention, when a vehicle impacts the drum 3, the outer wall of the drum 3 will deform inwards under the action of impact force, so as to squeeze the energy guiding rod 44 and push the two groups of energy absorbing sliders 43 to slide along the guiding sliding rod 41 in opposite directions, at the same time, the first spring 45 and the second spring 451 will deform simultaneously, and when in deformation, the first spring 45 and the second spring 451 store a certain elastic potential energy, and the stored elastic potential energy is converted from the impact force of the vehicle impact, so as to absorb the impact force, and the rebound effect of the first spring 45 and the second spring 451 after absorbing the impact force will also give the energy guiding rod 44 a reverse thrust, so as to effectively reduce the impact force and improve the anti-collision effect;

Meanwhile, in the process of sliding the energy-absorbing slide block 43, the linkage rod 47 is pushed to slide in the air-charging bin 32, so that the ignition rod 46 contacts with the ignition skin 471 and generates friction, and the powder at the end part of the ignition rod 46 is ignited, and sodium azide in the air-charging bin 32 explodes when encountering high-temperature flame, and a large amount of nitrogen gas is instantaneously generated, so that the air pressure in the air-charging bin 32 is increased, thereby opening the air pressure valve in the air guide groove 48, and the nitrogen gas firstly fills the buffer bin 31 along the air guide groove 48, so that the air pressure in the buffer bin 31 is increased, thereby generating an expanded air pressure buffering effect, reducing the impact force generated during vehicle collision, and the nitrogen gas is blown to the end surface of the energy-absorbing slide block 43 along the front surface of the air guide groove 48, and the nitrogen gas quantity generated at the moment of sodium azide explosion is far greater than the guide quantity of the air guide groove 48, so that the nitrogen gas blown to the air guide groove 48 has a certain force effect on the nitrogen gas, and the nitrogen gas blown to the air-charging slide block 43 from the air guide groove 48 can push the air-charging bin 43 to move along the reverse direction of the impact slide groove 48, so as to generate a reverse acting force on the outer wall of the drum 3, thereby further reducing the impact-absorbing impact effect on the vehicle, and reducing the impact effect on the impact device; the nitrogen entering the surge bin 31 will enter the trigger slot 51 along the expansion slot 52, so that the air pressure in the expansion slot 52 is increased, and the elastic air bag 53 is pushed to expand, so that the outer wall of the elastic air bag 53 is abutted against the positioning sensor 54, the positioning sensor 54 is triggered to transmit signals to the traffic management department, and the impact position is quickly and accurately identified and positioned, so that the road rescue can be quickly achieved, the rescue efficiency is improved, and the life and property safety of drivers is ensured.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (10)

1. The utility model provides a rotary guardrail of cylinder of identifiable striking position, includes stand (1) and fixes locating lever (2) at stand (1) both ends, a serial communication port, rotatory cylinder (3) that has cup jointed on stand (1), surge bin (31) have been seted up at cylinder (3) middle part, just cylinder (3) are located between two locating levers (2) from top to bottom, still include:

the anti-collision assembly (4) is arranged in the roller (3) and is used for absorbing impact force generated by collision between a vehicle and the roller (3);

and the positioning mechanism (5) is arranged in the roller (3) and is used for identifying and positioning the impact position of the vehicle and the roller (3).

2. The drum-type rotary guardrail capable of identifying impact positions according to claim 1, characterized in that the anti-collision assembly (4) comprises a guide sliding rod (41), an energy absorbing sliding groove (42) is formed in the inner wall of the buffer bin (31), the guide sliding rod (41) is fixed in the energy absorbing sliding groove (42), the outer walls of two sides of the guide sliding rod (41) are both in sliding sleeve connection with an energy absorbing sliding block (43), an energy guiding rod (44) is arranged between the side wall of the energy absorbing sliding block (43) and the inner wall of the buffer bin (31), the energy guiding rod (44) comprises two groups of hinge bases (441) and a rod body (442), the two groups of hinge bases (441) are both in rotary connection with the side wall of the energy absorbing sliding block (43) and the inner wall of the buffer bin (31), two sides of the energy absorbing sliding block (43) are both fixedly connected with first springs (45), two sides of the energy absorbing sliding block (43) are both in sleeve connection with second springs (451), and the first springs (45) are both in sleeve connection with the outer wall of the guide sliding rod (41).

3. A drum-type rotating guardrail according to claim 2, characterized in that the energy absorbing runners (42) are annularly arranged with a plurality of groups along the central axis of the drum (3), and the structures arranged in each group of energy absorbing runners (42) are the same.

4. The drum-type rotary guardrail according to claim 2, wherein the upper and lower groups of energy guiding rods (44) are symmetrically arranged in a splayed shape, and the included angle of the extension lines of the two groups of energy guiding rods (44) is 120-150 degrees.

5. The drum-type rotary guardrail capable of identifying impact positions according to claim 2, characterized in that the upper and lower parts of the drum (3) are provided with an air charging bin (32), ignition bars (46) are fixedly connected in the air charging bin (32), each group of the energy absorbing sliding blocks (43) are fixedly connected with a linkage rod (47) on the side wall, two groups of the linkage rods (47) in the same energy absorbing sliding groove (42) are symmetrically arranged, the top ends of the two groups of the linkage rods (47) respectively penetrate through and extend into the two side air charging bins (32), one side, close to the ignition bars (46), of the linkage rods (47) is fixedly connected with an ignition skin (471), the ignition skin (471) slides in a fitting manner with the end parts of the ignition bars (46), and the air charging bin (32) is communicated with the energy absorbing sliding groove (42) through an air guide groove (48).

6. The drum-type rotary guardrail capable of identifying impact positions according to claim 5, wherein two groups of air guide grooves (48) on the energy absorption sliding groove (42) are symmetrically arranged, the output ends of the air guide grooves (48) are opposite to the end face of the energy absorption sliding block (43), and an air pressure valve is arranged in each air guide groove (48).

7. A drum-type rotating barrier with identifiable impact location according to claim 1, characterized in that every five drums (3) are in one group and the positioning means (5) are arranged in the drum (3) at the centre of each group.

8. The drum-type rotary guardrail capable of identifying the impact position according to claim 1, characterized in that the positioning mechanism (5) comprises a triggering groove (51), the triggering groove (51) is formed in the outer wall of the drum (3), two sides of the triggering groove (51) are respectively communicated with the inner cavity of the buffer bin (31) through an expansion groove (52), an elastic air bag (53) is fixedly connected in the triggering groove (51), a positioning sensor (54) is fixedly connected in the triggering groove (51), and the positioning sensor (54) and the triggering groove (51) are respectively arranged at two sides of the elastic air bag (53).

9. A drum-type rotating barrier with a recognizable impact position according to claim 8, wherein the outer end of the trigger slot (51) is fixedly connected with an access panel (55) by means of screws.

10. The drum-type rotary guardrail capable of identifying the impact position according to claim 1, wherein the upper and lower parts of the outer wall of the drum (3) are respectively provided with a reflective groove (33), and reflective strips are respectively stuck in the reflective grooves (33).