CN111172922A - Safety barrier is used in highway construction - Google Patents
Safety barrier is used in highway construction Download PDFInfo
- Publication number
- CN111172922A CN111172922A CN202010009840.XA CN202010009840A CN111172922A CN 111172922 A CN111172922 A CN 111172922A CN 202010009840 A CN202010009840 A CN 202010009840A CN 111172922 A CN111172922 A CN 111172922A
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- China
- Prior art keywords
- frame
- buffer
- steel wire
- wire mesh
- stop pin
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0407—Metal rails
- E01F15/0438—Spacers between rails and posts, e.g. energy-absorbing means
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to a safety guardrail for highway construction, which comprises a rectangular frame and a steel wire mesh arranged on the front side of the frame, wherein a plurality of buffer components are horizontally and uniformly distributed on the frame, and each buffer component is formed by universal hinging of two rollers which are coaxially arranged from top to bottom; the frame is provided with a plurality of guide rods which are arranged on the frame and correspond to the buffer assemblies one by one, the upper ends of the guide rods are vertically connected with the frame in a sliding manner and are connected through first springs, the guide rods slide upwards under the elastic force of the first springs, and the lower ends of the guide rods are hinged with the upper end of the buffer assembly in a universal manner; the frame is provided with a plurality of positioning rods which correspond to the buffer assemblies one by one, the lower ends of the positioning rods are rotatably connected with the frame, and the upper ends of the positioning rods are universally hinged with the lower ends of the buffer assemblies; the invention can carry out multiple effective decomposition, buffering and resisting on the impact force in each direction, greatly improves the protection effectiveness, prolongs the whole service life of the guardrail, can be recycled and reduces unnecessary material and labor cost.
Description
Technical Field
The invention relates to a road construction auxiliary device, in particular to a safety guardrail for road construction.
Background
The number of field construction personnel required in the road construction process is large, meanwhile, traffic jam is usually caused in the construction road section during road construction, traffic accidents are easy to occur, once an accident vehicle rushes into the construction field, serious danger is brought to the construction personnel, and a pit, large construction equipment and the like at a low construction section also form considerable safety threat to the rushed vehicle; therefore, in the road construction process, the construction site is usually surrounded by the guard rails, the existing guard rails are formed by temporarily building steel bars and iron sheets, time and labor are wasted during building, the protection effect is insufficient, the isolation effect on pedestrians is remarkable, when vehicles or other mechanical impacts of large degree are encountered, the impacts cannot be effectively buffered and blocked to ensure the safety of field personnel, and the guard rails are inevitably damaged after being impacted by external force and cannot be continuously used.
In order to improve the impact buffering effect, some guard railings adopt a mode of linear arrangement of vertical rollers, and the impact force is relieved by rolling of the rollers, however, for the front impact, the rollers are subjected to radial force, cannot rotate to dissolve the impact, can only resist the external force by self strength, and is also easy to cause serious mechanical damage to influence normal use, so that the protection mode obviously cannot ensure the effectiveness and the durability of the protection mode.
Disclosure of Invention
Aiming at the situation, in order to make up for the technical defects in the prior art, the invention provides the safety guardrail for highway construction, and aims to solve the problems that the conventional protective device is poor in protective effect, low in protective effectiveness, easy to damage after being impacted and incapable of being continuously used.
The technical scheme for solving the problem is as follows: the buffer component is formed by two rollers which are coaxially arranged from top to bottom and are hinged in a universal manner through a cross shaft; the frame is provided with a plurality of vertically arranged guide rods which are arranged in one-to-one correspondence with the buffer assemblies, the upper ends of the guide rods are vertically connected with the frame in a sliding manner and are connected through a first spring, the guide rods slide upwards under the elasticity of the first spring, and the lower ends of the guide rods are hinged with the upper end of the buffer assembly through a universal joint; the frame is provided with a plurality of vertically arranged positioning rods which are in one-to-one correspondence with the buffer assemblies, the lower ends of the positioning rods are rotatably connected with the frame along the axes of the positioning rods, and the upper ends of the positioning rods are universally hinged with the lower ends of the buffer assemblies through cross shafts; the wire net cushions external force tentatively, and then the cylinder produces after receiving external force to strike and rotates and decompose external force, simultaneously, produces axial deflection and pulling guide arm gliding under the cross axle effect between two cylinders in same buffering subassembly, and the compression elasticity of first spring further cushions the impact force.
The guardrail adopts the linkage matching of the steel wire mesh, the universal hinged roller and the elastic sliding guide rod, can carry out multiple effective decomposition, buffering and resisting on impact force in all directions, greatly improves the protection effectiveness, avoids the condition that the roller or other parts directly resist external force with self strength, avoids mechanical damage or damage caused by direct impact on the roller or other parts, prolongs the whole service life of the guardrail, can be recycled through simple force storage operation of the coil spring, and greatly reduces unnecessary materials and labor cost.
Drawings
Fig. 1 is a front view of the present invention.
3 fig. 3 2 3 is 3 a 3 cross 3- 3 sectional 3 view 3 a 3- 3 a 3 of 3 the 3 present 3 invention 3. 3
Fig. 3 is a cross-sectional view B-B of the present invention.
Fig. 4 is an enlarged view of the portion C of fig. 1 according to the present invention.
Fig. 5 is an enlarged view of portion D of fig. 1 according to the present invention.
Fig. 6 is an axial cross-sectional view of the present invention.
Fig. 7 is a perspective sectional view of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the invention comprises a rectangular frame 1 and a steel wire mesh 2 arranged on the front side of the frame 1, wherein a plurality of buffer components are horizontally and uniformly distributed on the frame 1, and each buffer component is formed by two rollers 3 which are coaxially arranged from top to bottom and are universally hinged through a cross shaft 20; the frame 1 is provided with a plurality of vertically arranged guide rods 4 which are arranged in one-to-one correspondence with the buffer assemblies, the upper ends of the guide rods 4 are vertically connected with the frame 1 in a sliding manner and are connected through first springs 5, the guide rods 4 slide upwards under the elastic force of the first springs 5, and the lower ends of the guide rods 4 are universally hinged with the upper ends of the buffer assemblies through cross shafts 20; a plurality of vertically arranged positioning rods 6 which are in one-to-one correspondence with the buffer assemblies are arranged on the frame 1, the lower ends of the positioning rods 6 are rotatably connected with the frame 1 along the axes of the positioning rods 6, and the upper ends of the positioning rods 6 are universally hinged with the lower ends of the buffer assemblies through cross shafts 20; when the external force impacts, the steel wire mesh 2 is used for primary buffering, then the rollers 3 rotate to decompose the external force after being impacted by the external force, meanwhile, under the action of the impact force, the two rollers 3 in the same buffering assembly generate axial deviation under the action of the cross shaft 20 to pull the guide rod 4 to slide downwards, and the first spring 5 compresses and stores the force to further buffer the impact force; therefore, in the invention, the roller 3 can be stressed to rotate and can axially shift to all directions by the end part fulcrum, so that when the front impact is received, the roller 3 cannot rotate, but can pull the guide rod 4 to slide downwards in an axial shifting mode, so that the impact buffering is performed by using the elastic force of the first spring 5, when the side impact is received, the roller 3 can rotate by itself under the impact force to decompose the impact force, and can generate axial shift at the same time, and the buffering is further performed by using the elastic force of the first spring 5; therefore, in the using process, the roller 3 can effectively buffer and resist the guardrail no matter how the direction of the impact force outside the guardrail is, and the effectiveness of guardrail protection is ensured.
Furthermore, the frame 1 is provided with an accommodating groove 7 corresponding to the lower end of the positioning rod 6, the lower end of the positioning rod 6 is provided with a spline wheel 8 which is arranged in the accommodating groove 7 and is coaxial with the positioning rod 6, the accommodating groove 7 is internally provided with a coil spring 9 which is coaxial with the positioning rod 6, the inner end of the coil spring 9 is connected with the positioning rod 6 through a one-way bearing 10, and the outer end of the coil spring 9 is connected with the frame 1; the frame 1 is provided with a stop pin 11 which is arranged at the rear side of the spline wheel 8 and slides forwards and backwards, the front end of the stop pin 11 is arranged in the accommodating groove 7 and is meshed and matched with the spline teeth of the spline wheel 8, the rear end of the stop pin 11 slides out of the frame 1, the stop pin 11 is connected with the frame 1 through a second spring 12, and the stop pin 11 slides forwards under the action of the elastic force of the second spring 12 to be in extrusion contact with the spline wheel 8, so that the rotation stop of the spline wheel 8 is realized; the rear end of the stop pin 11 is connected to the steel wire mesh 2 through a rigid piece; when the device is used, the stop pin 11 is pulled out manually to unlock the spline wheel 8, the buffer assembly is continuously rotated according to the correct direction to enable the spline wheel 8 to rotate along with the stop pin, the coil spring 9 is gradually wound tightly to complete force accumulation, the stop pin 11 is loosened after the force accumulation is completed to enable the stop pin to reset and slide under the action of the elastic force of the second spring 12 and be meshed with the spline wheel 8, and the spline wheel 8 stops rotating; when the steel wire mesh 2 is deformed by impact force, the stop pin 11 slides backwards under the action of deformation displacement to unlock the spline wheel 8, the coil spring 9 releases stored force to drive the buffer assembly to rotate quickly, on one hand, the buffer assembly rotates in advance to enable the roller 3 to be in a rotating state when the external force impacts the roller 3, even if the impact is positive, the roller 3 can decompose and absorb the impact force under the action of the rotation inertia of the roller 3, so that a good buffer effect is achieved, on the other hand, a gyroscopic effect is formed when the buffer assembly rotates quickly, so that the roller 3 generates resistance to the external force changing the axial direction of the roller, and the resistance and the buffer effect to the impact force are further enhanced.
Furthermore, the upper end of the guide rod 4 is provided with an inner hexagonal counter bore 13, the frame 1 is provided with a jack 14 corresponding to the inner hexagonal counter bore 13, when the stop pin 11 is pulled out, namely the spline wheel 8 is unlocked, the guide rod 4 is rotated by an electric tool with a hexagonal wrench, the buffer assembly can be rotated to wind the coil spring 9 tightly for storing force, and the stop pin 11 is used for stopping the spline wheel 8 after the storing force is completed, so that the protection use can be realized.
Furthermore, the frame 1 is provided with a fixed rod 15 horizontally arranged above the steel wire mesh 2 and a movable rod 16 horizontally arranged below the steel wire mesh 2, and the upper end and the lower end of the steel wire mesh 2 are respectively connected with the fixed rod 15 and the movable rod 16; the frame 1 is provided with a plurality of sliding rods 17 which correspond to the moving rods 16 and are horizontally and uniformly distributed, the sliding rods 17 slide back and forth to penetrate through the frame 1, the front ends of the sliding rods 17 are connected with the moving rods 16, and the rear ends of the sliding rods 17 are simultaneously connected with the rear ends of the stop pins 11 through connecting rods 18, so that the sliding rods 17 and the stop pins 11 synchronously slide; when external force impacts the steel wire mesh 2, the steel wire mesh 2 is stressed and deformed, and meanwhile, the lower end of the steel wire mesh swings backwards, so that the sliding rod 17 is pushed to slide backwards, therefore, the stop pin 11 slides backwards synchronously to unlock the spline wheel 8, and the buffering assembly rotates fast to generate resistance.
Further, the distance between the upper end of the steel wire mesh 2 and the frame 1 is smaller than the distance between the lower end of the steel wire mesh 2 and the frame 1, namely the upper end of the steel wire mesh 2 is inclined backwards, when external force impacts the steel wire mesh 2, the probability that the lower end of the steel wire mesh is firstly contacted with impact force is increased, the lower end of the steel wire mesh can swing backwards more rapidly to unlock the spline wheel 8, and buffer time is provided for complete release of the stored force of the coil spring 9.
Further, the roller 3 is formed by sleeving a mandrel 301 and an outer cylinder 302, the outer cylinder 302 is an annular hollow cylinder, and in order to improve the inertia of the buffer assembly, concrete, stone, gravel or water can be added as a counterweight 303 on the hollow inner side of the outer cylinder 302 according to actual needs to assist in enhancing the resistance of the buffer assembly.
Furthermore, the periphery of the buffer assembly is coated with a dust cover 19, and the upper end and the lower end of the dust cover 19 are respectively connected with the frame 1; the dust cover 19 is formed by sequentially connecting three sections of corrugated cylinders 1901 through a straight cylinder 1902, wherein the three sections of corrugated cylinders 1901 respectively correspond to the upper end of the buffer assembly, the universal hinge parts of the two rollers 3 and the lower end of the buffer assembly; the dust cover 19 can effectively avoid the damage of external objects such as raised dust, rainwater and the like to the buffer assembly, when the dust cover 19 is impacted by external force, the two straight cylinders 1902 produce axis deviation to enable the three corrugated cylinders 1901 to produce adaptive deformation, and after the two rollers 3 are stressed to produce axial deviation, the dust cover 19 can still be matched with the shape of the buffer assembly, so that large resistance can not be produced to the rotation of the rollers 3.
Further, the steel wire mesh 2 is formed by weaving a plurality of spiral spring-shaped steel wires 201, and the intersection point of any two crossed spiral spring-shaped steel wires 201 is fixed by a connecting block 202; the spiral spring-shaped steel wire 201 has certain elasticity, so that the steel wire mesh 2 cannot be easily knocked through when being subjected to external force, and meanwhile, the buffer effect of the steel wire mesh 2 on impact force can be improved.
Further, frame 1 bottom set up the cavity and the filling concrete or directly be fixed in subaerially to improve frame 1's stability, prevent that impact force effect underframe 1 from producing and topple over or the dislocation, guarantee the normal protective effect of other parts on the guardrail and avoid guardrail self to produce the security threat to inside personnel of guardrail and equipment.
Furthermore, the frame 1 is composed of two horizontal beams 101 corresponding to each other up and down and two vertical columns 102 disposed on the left and right sides of the horizontal beams 101, and the upper and lower ends of the vertical columns 102 are respectively connected with the two horizontal beams 101; the guide rod 4 and the first spring 5 are arranged on the upper horizontal beam 101, and the positioning rod 6 is arranged on the lower horizontal beam 101.
Further, the guide rod 4 is connected with the first spring 5 through a thrust bearing 21, so as to reduce the friction force caused by the increase of positive pressure between the guide rod 4 and the first spring 5 when the guide rod 4 slides downwards to compress the first spring, so as to ensure the normal rotation of the guide rod 4 along with the buffering assembly.
The guardrail adopts the linkage matching of the steel wire mesh, the universal hinged roller and the elastic sliding guide rod, can effectively decompose, buffer and resist the impact force in all directions, greatly improves the protection effectiveness, avoids the condition that the roller or other parts directly resist external force with self strength, avoids mechanical damage or damage caused by direct impact on the roller or other parts, prolongs the whole service life of the guardrail, can be recycled through simple force storage operation of the coil spring, and greatly reduces unnecessary materials and labor cost.
The steel wire mesh, the rollers and the guide rods which slide elastically provide multiple buffering and absorption for impact force, so that the protection effect is greatly improved, in the practical application process, the frame can be changed into a collapsible structure, when the impact force exceeds a preset value, under the action of vertical tension generated by axial deviation of the two rollers in the buffering assembly, the frame is collapsed vertically to further absorb the impact force and block an impact object, the overall protection effect of the guardrail is improved, and the guardrail can be prevented from being impacted into a construction site by the impact force to cause secondary damage to ground personnel and equipment.
Claims (10)
1. The safety guardrail for the highway construction comprises a rectangular frame (1) and a steel wire mesh (2) arranged on the front side of the frame (1), and is characterized in that a plurality of buffer assemblies are horizontally and uniformly distributed on the frame (1), and each buffer assembly is formed by two rollers (3) which are coaxially arranged from top to bottom and are hinged in a universal mode; the frame (1) is provided with a plurality of guide rods (4) which are arranged on the frame (1) and correspond to the buffer assemblies one by one, the upper ends of the guide rods (4) are vertically and slidably connected with the frame (1) and are connected through first springs (5), the guide rods (4) slide upwards under the elastic force of the first springs (5), and the lower ends of the guide rods (4) are universally hinged with the upper ends of the buffer assemblies; a plurality of positioning rods (6) which correspond to the buffer assemblies one by one are arranged on the framework (1), the lower ends of the positioning rods (6) are rotatably connected with the framework (1), and the upper ends of the positioning rods (6) are hinged with the lower ends of the buffer assemblies in a universal mode.
2. The safety barrier for road construction according to claim 1, wherein the frame (1) is provided with a containing groove (7) corresponding to the lower end of the positioning rod (6), the lower end of the positioning rod (6) is provided with a spline wheel (8) which is arranged in the containing groove (7) and is coaxial with the positioning rod (6), the containing groove (7) is internally provided with a coil spring (9) which is coaxial with the positioning rod (6), the inner end of the coil spring (9) is connected with the positioning rod (6) through a one-way bearing (10), and the outer end of the coil spring (9) is connected with the frame (1); the frame (1) is provided with a stop pin (11) which is arranged at the rear side of the spline wheel (8) and slides forwards and backwards, the front end of the stop pin (11) is meshed with the spline wheel (8) and matched, the rear end of the stop pin (11) penetrates out of the frame (1), the stop pin (11) is connected with the frame (1) through a second spring (12), and the stop pin (11) slides forwards under the action of the elastic force of the second spring (12) to be in extrusion contact with the spline wheel (8); the rear end of the stop pin (11) is connected to the steel wire mesh (2).
3. The safety fence for the road construction according to claim 2, wherein the upper end of the guide rod (4) is provided with an inner hexagonal counterbore (13), and the frame (1) is provided with a jack (14) corresponding to the inner hexagonal counterbore (13).
4. The safety barrier for highway construction according to claim 2, wherein the frame (1) is provided with a fixed rod (15) horizontally arranged above the steel wire mesh (2) and a movable rod (16) horizontally arranged below the steel wire mesh (2), and the upper end and the lower end of the steel wire mesh (2) are respectively connected with the fixed rod (15) and the movable rod (16); frame (1) on have and move a plurality of slide bars (17) that pole (16) correspond and horizontal equipartition, slide bar (17) slide around and run through frame (1) and the front end of slide bar (17) with move pole (16) and be connected, the rear end of a plurality of slide bars (17) is with a plurality of the rear end of stop pin (11) is connected through connecting rod (18), makes slide bar (17) and stop pin (11) synchronous slip.
5. A safety barrier for road construction according to claim 4, wherein the distance between the upper end of the steel wire mesh (2) and the frame (1) is smaller than the distance between the lower end of the steel wire mesh (2) and the frame (1).
6. A safety barrier for highway construction according to claim 1 wherein the roller (3) is formed by sleeving a mandrel (301) and an outer cylinder (302), the outer cylinder (302) is an annular hollow cylinder, and a counterweight (303) is arranged inside the hollow of the outer cylinder (302).
7. The safety barrier for road construction according to claim 2, wherein the buffering assembly is coated with a dust cover (19) at the periphery, and the upper end and the lower end of the dust cover (19) are respectively connected with the frame (1); the dustproof cover (19) is formed by connecting three sections of corrugated cylinders (1901) through a straight cylinder (1902) in sequence, and the three sections of corrugated cylinders (1901) correspond to the upper end of the buffer assembly, the universal hinge parts of the two rollers (3) and the lower end of the buffer assembly respectively.
8. A safety fence for highway construction according to claim 1, wherein the steel wire net (2) is woven by a plurality of spiral spring-like steel wires (201), and the intersection point of any two crossed spiral spring-like steel wires (201) is fixed by a connecting block (202).
9. A safety barrier for road construction according to claim 1, wherein the bottom of the frame (1) is provided with a cavity and filled with concrete.
10. The safety fence for highway construction according to claim 1, wherein the frame (1) is composed of two horizontal beams (101) corresponding to each other up and down and two vertical columns (102) disposed at the left and right sides of the horizontal beams (101), and the upper and lower ends of the vertical columns (102) are respectively connected with the two horizontal beams (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010009840.XA CN111172922A (en) | 2020-01-06 | 2020-01-06 | Safety barrier is used in highway construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010009840.XA CN111172922A (en) | 2020-01-06 | 2020-01-06 | Safety barrier is used in highway construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111172922A true CN111172922A (en) | 2020-05-19 |
Family
ID=70646519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010009840.XA Withdrawn CN111172922A (en) | 2020-01-06 | 2020-01-06 | Safety barrier is used in highway construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111172922A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376465A (en) * | 2020-11-04 | 2021-02-19 | 翁雨薇 | Highway rail guard with warning function is convenient for discover |
| CN114438932A (en) * | 2022-04-12 | 2022-05-06 | 山东中宏路桥建设有限公司 | Municipal administration buffering rail |
-
2020
- 2020-01-06 CN CN202010009840.XA patent/CN111172922A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376465A (en) * | 2020-11-04 | 2021-02-19 | 翁雨薇 | Highway rail guard with warning function is convenient for discover |
| CN112376465B (en) * | 2020-11-04 | 2022-04-08 | 山东冠县北方管业有限公司 | Highway rail guard with warning function is convenient for discover |
| CN114438932A (en) * | 2022-04-12 | 2022-05-06 | 山东中宏路桥建设有限公司 | Municipal administration buffering rail |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200519 |
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| WW01 | Invention patent application withdrawn after publication |