CN114775488A

CN114775488A - Road safety anticollision barrier

Info

Publication number: CN114775488A
Application number: CN202210537690.9A
Authority: CN
Inventors: 高闯; 刘迎军
Original assignee: Xuzhou Juneng Road Safety Facilities Co ltd
Current assignee: Xuzhou Juneng Road Safety Facilities Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-07-22
Anticipated expiration: 2042-05-18
Also published as: CN114775488B

Abstract

A road safety anti-collision guardrail comprises a plurality of guardrail monomers which are hinged with each other, and comprises a base, wherein two lower chutes are formed in the base, square upright posts are arranged in the lower chutes in a friction sliding manner, cross rods are arranged at the tops of the square upright posts, upper chutes are formed at the lower ends of the cross rods, and the top ends of the square upright posts are embedded in the upper chutes in a sliding manner; an anti-collision barrel is arranged on the base in a friction sliding mode, and two sides of the anti-collision barrel are connected with the square upright posts through springs; the outer side of the square upright post is provided with a connecting piece; a strip-shaped groove hole is symmetrically formed in two sides of the anti-collision barrel, a connecting rod buffering mechanism is arranged in the strip-shaped groove hole, a triangular sliding groove is formed in the square upright post, and the connecting rod buffering mechanism is connected with the triangular sliding groove in a sliding friction mode. The invention can adapt to road sections with different shapes, can effectively buffer and offset impact forces at different angles, and reduces the damage to vehicles and guard railings to the maximum extent; because the buffering dynamics is big, after taking place the striking, only need to change damage the part can, need not demolish on a large scale and change whole guardrail.

Description

Road safety anticollision barrier

Technical Field

The invention belongs to the field of road traffic protection equipment, and particularly relates to a road safety anti-collision guardrail.

Background

Various guard railings are respectively installed on two sides of a road, and the guard railings are generally of iron structures and have no elasticity. The rigid guardrail has strong protective capability, but absorbs the collision kinetic energy when colliding with the automobile, namely the plastic deformation of the automobile, the friction contact between the automobile and the guardrail, and the climbing of the automobile along the guardrail and the change of the automobile driving direction. This is likely to cause impact injury to vehicles and passengers, especially in curved road sections with small radius, which often results in the disassembly of large vehicles and the loss of control, or serious injury or even death. Patent 201710171267.0 proposes an anti-collision guardrail, in which a groove is formed on a base, the bottom of the groove is a first rotation accommodating groove, and an opening of the first rotation accommodating groove is sequentially connected with a first inclined wall, a side wall and a second inclined wall; a first rotating ball is arranged in the first rotating accommodating groove, and an upright post is arranged at the upper part of the first rotating ball; the lower end of the upright post is provided with a second rotating accommodating groove; a second rotating ball is arranged in the second rotating accommodating groove and connected with the supporting rod; a sliding groove is formed in the first inclined wall; the lower end of the support rod is arranged in the sliding groove, and an inner spring is arranged between the lower end of the support rod and the bottom end of the sliding groove; the supporting rod positioned outside the sliding groove is sleeved with an outer spring; the steel wire rope stretching devices are arranged in the stand columns, the corrugated plates are arranged between the two stand columns, upper and lower rows of fixing holes are formed in the corrugated plates, the upper steel wire rope sequentially penetrates through the upper row of fixing holes, and the lower steel wire rope sequentially penetrates through the lower row of fixing holes. Although the invention can buffer and release the impact force to a certain extent, the impact force is counteracted only by the tensile force and the force of the buffer spring, the anti-collision effect is poor, and meanwhile, the invention can not buffer effectively when the side impact force is applied. When the crash occurs, the guard rail cannot be simply repaired and reused, and needs to be replaced again.

Disclosure of Invention

The invention aims to provide a road safety anti-collision guardrail which can adapt to road sections with different shapes, can effectively buffer and offset impact forces at different angles and furthest reduces the damage to vehicles and protective guards; because the buffering dynamics is big, after taking place the striking, only need to change damage the part can, need not demolish on a large scale and change whole guardrail.

The technical scheme adopted by the invention is as follows:

a road safety anti-collision guardrail is composed of a plurality of guardrail monomers which are hinged and connected in series; the guard rail single body comprises a base fixed on the ground, two lower sliding grooves are formed in the base, a square upright is arranged in each lower sliding groove in a friction sliding mode, a cross rod is arranged at the tops of the two square upright, an upper sliding groove which is symmetrical to the lower sliding grooves is formed in the lower end of the cross rod, and the top end of each square upright is embedded in the upper sliding groove in a sliding mode; an anti-collision barrel is arranged on the base in a friction sliding mode, and two sides of the anti-collision barrel are connected with the square upright posts through a plurality of springs I respectively; a plurality of layers of connecting pieces are arranged on the outer side of the square upright post;

a plurality of layers of slotted holes are symmetrically formed in two sides of the anti-collision barrel, a connecting rod buffer mechanism is arranged in each layer of slotted hole, a triangular sliding groove matched with the connecting rod buffer mechanism is formed in the square upright post, and the connecting rod buffer mechanism is connected with the triangular sliding groove in a sliding friction mode.

When the front of the vehicle collides with the anti-collision barrel, the anti-collision barrel slides on the base in a friction mode to buffer a part of impact force, and meanwhile, when the anti-collision barrel slides, the connecting rod buffer mechanism is pushed to slide and rub in the triangular sliding groove to buffer a part of impact force; because the perpendicular of triangle spout is certain angle with anti-collision barrel slip direction, just is pushed open to both sides by connecting rod buffer gear for two square columns separately move to both sides along spout and last spout down, at this moment, except the friction between square column and spout and the last spout down, a plurality of spring between anti-collision barrel and the square column also plays the cushioning effect simultaneously, further cushions some impact. Through the buffering of above triplex, can greatly consume the impact, moreover, through above-mentioned structure, the power that produces the front impact disperses slant and side direction, avoids ordinary buffering type rail guard can't change the direction of force and lead to the risk that the crash tube takes place to kick-back.

Furthermore, a plurality of pairs of second springs are arranged in the lower chute and the upper chute, one end of each second spring in the lower chute is fixed at the lower part of the square upright post, and the other end of each second spring is fixed on the inner wall of the lower chute; one end of a second spring in the upper chute is fixed on the upper part of the square upright post, and the other end of the second spring is fixed on the inner wall of the upper chute.

Through setting up No. two springs for the square column and down spout and go up the spout between except that there is frictional force, the effort of spring in addition, further consume the impact, moreover, no matter in the spout still goes up the spout down, No. two springs all appear in pairs, like this, when receiving the effort left, another spring of one of them spring compression is tensile, can both exert a function, makes the slip process more steady.

Furthermore, the connecting rod buffer mechanism comprises a plurality of springs fixed in the middle of the anti-collision barrel, the number of the springs is the same as that of the strip-shaped slotted holes, a buffer seat is fixed at the other end of each spring, connecting rods are symmetrically and rotatably connected to two sides of the buffer seat, the end part of each connecting rod is rotatably connected with an inclined plane block, the inclined plane block penetrates through the strip-shaped slotted holes, the middle part of the inclined plane block is rotatably connected with the strip-shaped slotted holes through a rotating shaft, and a first torsion spring is arranged on the rotating shaft; the inclined plane of the end part of the inclined plane block is matched with the triangular sliding groove.

After an anticollision section of thick bamboo was strikeed, No. three springs at first compressed and played the cushioning effect, No. three springs further promote the cushion socket again, recycle the connecting rod and make the bevel piece further cushion the impact at the slotted hole internal rotation, when the bevel piece rotated to with the slotted hole lateral wall contact, unable further produced the cushioning effect, can be by the whole propulsion of an anticollision section of thick bamboo for the inclined plane of bevel piece slides with the perpendicular friction of triangle spout, and then promotes the square column to both sides and consumes the impact. This process consumes the impact earlier through No. three springs, a torsional spring, and rethread promotion square column further consumes for buffering effect is better.

Further, a side collision prevention mechanism is arranged between the base and the cross rod, the side collision prevention mechanism comprises a stand column which is rotatably arranged between the base and the cross rod, a second torsion spring is arranged between the stand column and the base and between the stand column and the cross rod, a rotary drum is fixed on the stand column, and the upper end surface and the lower end surface of the rotary drum are respectively in friction sliding connection with the cross rod and the base;

the rotating drum is provided with a plurality of blank spaces with the same number as the buffer seats, each layer of blank space is internally provided with a rotating wheel, and the rotating wheels are connected to the upright posts through a third torsion spring.

When the vehicle is from crashproof section of thick bamboo both sides direction (being less than 90 direction striking with whole crash barrier) striking, aforementioned crashproof structure still can play the cushioning effect, but the cushioning effect is limited, and the leading cause is the atress inequality, and this is also the poor reason of ordinary shock attenuation formula crash barrier effect. Through preventing the side and hitting the mechanism, when an anticollision section of thick bamboo receives the side direction striking and takes place the side to move, on the connecting rod that receives the striking one side touched the runner earlier, it takes place to rotate to drive the runner, offset some impact through No. three torsional springs, when No. three torsional springs reached the limit, the stand began to rotate, and then make No. two torsional springs produce cushioning effect, and simultaneously, it produces the frictional slip and produces cushioning effect to drive the rotary drum between base and horizontal pole, these several kinds of cushioning effect take place successively, can not only offset little impact, can also offset great impact, realize the effect of steady consumption impact.

Furthermore, a sound-light alarm is arranged on the cross rod, a switch of the sound-light alarm is connected with the square upright post, and the sound-light alarm can be automatically turned on when the square upright post moves.

The invention has the beneficial effects that:

the front anti-collision device has the advantages that the destructive force generated by front collision can be effectively buffered through the synergistic effect of the anti-collision barrel friction sliding component, the connecting rod buffer mechanism sliding friction component, the square column sliding friction component, the first spring and the like, and the front anti-collision effect is better due to the second spring; the side impact prevention mechanism can effectively slow down damage caused by side impact through the two torsion springs and the rotary drum; the protective guard single bodies of the invention realize free connection, can adapt to straight line sections, curve sections and oblique line sections, and have wide application range; the set automatic acousto-optic alarm can remind the following vehicles in time to prevent secondary damage; the invention also solves the problem that the conventional guardrail only adopts a damping measure and cannot eliminate the poor anti-collision effect caused by the non-uniform resilience and stress.

Drawings

FIG. 1 is a schematic front view of the overall structure of the present invention;

FIG. 2 is a schematic rear view of the overall structure of the present invention;

FIG. 3 is a schematic top view of the structure of the present invention;

FIG. 4 is a schematic view of a back side partial structure of the present invention;

FIG. 5 is a schematic front view of a portion of the present invention;

fig. 6 is a bottom view of a single guard rail unit according to the present invention;

fig. 7 is a sectional view of a single guard rail unit according to the present invention;

FIG. 8 is a cross-sectional view of the drum of the present invention;

FIG. 9 is an exploded view of the barrel and linkage bumper mechanism;

FIG. 10 is a schematic view of the construction of the drum of the present invention;

in the figure, 1, a base, 101, a lower chute, 102, a square upright post, 103, a cross bar, 104, an upper chute, 105, an anti-collision barrel, 106, a first spring, 107, a connecting piece, 108, a strip-shaped groove hole, 109, a triangular chute, 110, a second spring, 2, a connecting rod buffer mechanism, 201, a third spring, 202, a buffer seat, 203, a connecting rod, 204, a slope block, 205, a rotating shaft, 206, a first torsion spring, 3, an anti-side-collision mechanism, 301, an upright post, 302, a second torsion spring, 303, a rotating drum, 304, a rotating wheel, 305, a third torsion spring, 4 and an audible and visual alarm.

Detailed Description

As shown in fig. 1-10, a road safety anti-collision guardrail is composed of a plurality of guardrail units hinged and connected in series; the guard rail single body comprises a base 1 fixed on the ground, two lower sliding grooves 101 are formed in the base 1, a square upright post 102 is arranged in each lower sliding groove 101 in a friction sliding mode, cross rods 103 are arranged at the tops of the two square upright posts 102, an upper sliding groove 104 which is symmetrical to the lower sliding groove 101 is formed in the lower ends of the cross rods 103, and the top ends of the square upright posts 102 are embedded in the upper sliding groove 104 in a sliding mode; an anti-collision barrel 105 is arranged on the base 1 in a friction sliding mode, and two sides of the anti-collision barrel 105 are connected with the square upright post 102 through a plurality of springs 106; a plurality of layers of connecting pieces 107 are arranged on the outer side of the square upright post 102; the anti-collision barrel 105 is symmetrically provided with a plurality of layers of slotted holes 108 on two sides, each layer of slotted hole 108 is internally provided with a connecting rod buffer mechanism 2, the square column 102 is provided with a triangular sliding groove 109 matched with the connecting rod buffer mechanism 2, and the connecting rod buffer mechanism 2 is connected with the triangular sliding groove 109 in a sliding friction manner.

When the front of the vehicle collides with the anti-collision barrel 105, the anti-collision barrel 105 slides on the base 1 in a friction manner to buffer a part of the impact force, and meanwhile, when the anti-collision barrel 105 slides, the connecting rod buffer mechanism 2 is pushed to slide and rub in the triangular chute 109 to buffer a part of the impact force; because the vertical plane of the triangular chute 109 forms a certain angle with the sliding direction of the crash tube 105, the vertical plane is pushed away to both sides by the link buffer mechanism 2, so that the two square columns 102 move separately to both sides along the lower chute 101 and the upper chute 104, and at this time, besides the friction force between the square columns 102 and the lower chute 101 and the upper chute 104, the plurality of springs 106 between the crash tube 105 and the square columns 102 also play a role of buffering, and further buffer a part of the impact force. Through the buffering of above triplex, can greatly consume the impact, moreover, through above-mentioned structure, the power that produces the front impact disperses slant and side direction, avoids ordinary buffering type rail guard can't change the direction of force and leads to the risk that crash tube 105 takes place to kick-back.

A plurality of pairs of second springs 110 are arranged in the lower chute 101 and the upper chute 104, one end of each second spring 110 in the lower chute 101 is fixed at the lower part of the square upright post 102, and the other end is fixed on the inner wall of the lower chute 101; one end of a second spring 110 in the upper chute 104 is fixed on the upper part of the square upright post 102, and the other end is fixed on the inner wall of the upper chute 104.

Through setting up No. two springs 110 for there is the frictional force in addition between square column 102 and lower spout 101 and the last spout 104, and the effort of spring, further consumes the impact, moreover, no matter in lower spout 101 or in going up spout 104, No. two springs 110 all appear in pairs, like this, when receiving the effort left, another spring of one of them spring compression is tensile, can both play a role, makes the slip process more steady.

The connecting rod buffer mechanism 2 comprises a plurality of third springs 201 fixed in the middle of the anti-collision barrel 105, the number of the third springs 201 is the same as that of the strip-shaped slotted holes 108, buffer seats 202 are fixed at the other ends of the third springs 201, connecting rods 203 are symmetrically and rotatably connected to two sides of each buffer seat 202, the end parts of the connecting rods 203 are rotatably connected with inclined surface blocks 204, the inclined surface blocks 204 penetrate through the strip-shaped slotted holes 108, the middle parts of the inclined surface blocks 204 are rotatably connected with the strip-shaped slotted holes 108 through rotating shafts 205, and first torsion springs 206 are arranged on the rotating shafts 205; the slope of the end of the slope block 204 matches the triangular chute 109.

After the anti-collision barrel 105 is impacted, the third spring 201 is firstly compressed to play a buffering role, the third spring 201 further pushes the buffer seat 202, the connecting rod 203 is recycled to enable the slope block 204 to rotate in the slotted hole 108 to further buffer the impact force, when the slope block 204 rotates to be in contact with the side wall of the slotted hole 108, the buffer effect cannot be further generated, the anti-collision barrel 105 is integrally pushed, the slope of the slope block 204 and the vertical surface of the triangular sliding groove 109 slide in a friction mode, and then the square column 102 is pushed towards two sides to consume the impact force. In the process, the impact force is consumed firstly by the third spring 201 and the first torsion spring 206, and then the square upright post 102 is further consumed by pushing, so that the buffering effect is better.

The side collision preventing mechanism 3 is arranged between the base 1 and the cross rod 103, the side collision preventing mechanism 3 comprises a stand column 301 which is rotatably arranged between the base 1 and the cross rod 103, a second torsion spring 302 is respectively arranged between the stand column 301 and the base 1 and between the stand column 301 and the cross rod 103, a rotary drum 303 is fixed on the stand column 301, and the upper end surface and the lower end surface of the rotary drum 303 are respectively connected with the cross rod 103 and the base 1 in a friction sliding manner; the rotating drum 303 is provided with a plurality of spaces with the same number as the buffer bases 202, a rotating wheel 304 is arranged in each layer of space, and the rotating wheel 304 is connected to the upright column 301 through a third torsion spring 305.

When a vehicle collides from the two sides of the anti-collision barrel 105 (the direction of the collision with the whole anti-collision guardrail is less than 90 degrees), the anti-collision structure still can play a role in buffering, but the buffering effect is limited, the main reason is uneven stress, and the reason is also the poor effect of the common shock absorption type anti-collision guardrail. Through preventing side impact mechanism 3, when crashproof section of thick bamboo 105 receives the side direction striking and takes place the side to move, on the connecting rod 203 that receives the side of striking touches runner 304 earlier, drive runner 304 and take place to rotate, offset some impact through No. three torsional springs 305, when No. three torsional springs 305 reach the limit, stand 301 begins to rotate, and then make No. two torsional springs 302 produce the cushioning effect, and simultaneously, it slides and produce the cushioning effect to drive the rotary drum 303 to produce the friction between base 1 and horizontal pole 103, these several kinds of cushioning effects take place successively, can not only offset little impact, can also offset great impact, realize the effect of steadily consuming the impact.

The cross bar 103 is provided with the sound and light alarm 4, the switch of the sound and light alarm 4 is connected with the square upright post 102, and the sound and light alarm 4 can be automatically turned on when the square upright post 102 moves.

Claims

1. A road safety anti-collision guardrail is characterized by comprising a plurality of guardrail monomers which are hinged and connected in series; the protective guard single body comprises a base (1) fixed on the ground, two lower sliding grooves (101) are formed in the base (1), a square upright (102) is arranged in each lower sliding groove (101) in a friction sliding mode, a cross rod (103) is arranged at the tops of the two square upright (102), an upper sliding groove (104) symmetrical to the lower sliding groove (101) is formed in the lower end of the cross rod (103), and the top end of the square upright (102) is embedded in the upper sliding groove (104) in a sliding mode; an anti-collision barrel (105) is arranged on the base (1) in a friction sliding mode, and two sides of the anti-collision barrel (105) are connected with the square column (102) through a plurality of springs (106); a plurality of layers of connecting pieces (107) are arranged on the outer side of the square upright post (102);

a plurality of layers of slotted holes (108) are symmetrically formed in two sides of the anti-collision barrel (105), a connecting rod buffer mechanism (2) is arranged in each layer of slotted hole (108), a triangular sliding groove (109) matched with the connecting rod buffer mechanism (2) is formed in the square column (102), and the connecting rod buffer mechanism (2) is connected with the triangular sliding groove (109) in a sliding friction mode.

2. A road safety anti-collision guardrail as claimed in claim 1, wherein a plurality of pairs of second springs (110) are arranged in the lower chute (101) and the upper chute (104), one end of each second spring (110) in the lower chute (101) is fixed at the lower part of the square upright post (102), and the other end is fixed on the inner wall of the lower chute (101); one end of a second spring (110) in the upper chute (104) is fixed on the upper part of the square upright post (102), and the other end is fixed on the inner wall of the upper chute (104).

3. A road safety anti-collision guardrail as claimed in claim 1, wherein the link buffer mechanism (2) comprises a plurality of third springs (201) fixed in the middle of the anti-collision barrel (105), the number of the third springs (201) is the same as that of the slotted holes (108), the other ends of the third springs (201) are fixed with buffer bases (202), the two sides of the buffer bases (202) are symmetrically and rotatably connected with link rods (203), the ends of the link rods (203) are rotatably connected with bevel blocks (204), the bevel blocks (204) pass through the slotted holes (108), the middle parts of the bevel blocks (204) are rotatably connected with the slotted holes (108) through rotating shafts (205), and the rotating shafts (205) are provided with first torsion springs (206); the inclined plane at the end part of the inclined plane block (204) is matched with the triangular sliding groove (109).

4. A road safety anti-collision guardrail as claimed in claim 3, wherein a side-collision preventing mechanism (3) is arranged between the base (1) and the cross bar (103), the side-collision preventing mechanism (3) comprises a vertical column (301) rotatably arranged between the base (1) and the cross bar (103), a second torsion spring (302) is respectively arranged between the vertical column (301) and the base (1) and between the vertical column (301) and the cross bar (103), a rotary drum (303) is fixed on the vertical column (301), and the upper end surface and the lower end surface of the rotary drum (303) are respectively connected with the cross bar (103) and the base (1) in a friction sliding manner;

the rotating drum (303) is provided with a plurality of layers of blank spaces with the same number as the buffer seats (202), each layer of blank space is internally provided with a rotating wheel (304), and the rotating wheel (304) is connected to the upright post (301) through a third torsion spring (305).

5. A road safety crash barrier according to claim 1, characterized in that a sound and light alarm (4) is provided on the cross bar (103), a switch of the sound and light alarm (4) is connected with the square column (102), and the sound and light alarm (4) can be automatically turned on when the square column (102) moves.