CN109577247B - Guardrail Mechanism for Road and Bridge Engineering - Google Patents

Abstract

The present invention provides a guardrail mechanism for road and bridge engineering, comprising: a base, a protective net storage cavity and a buffer slider; The guardrails are connected by a plurality of sets of the side connecting rods; the base and the lower inner side of the guardrail are provided with two sets of the oil pressure buffers; under normal conditions, the base is connected to the base through bolts. The guardrail is fixedly connected. By setting up a protective net, the vehicle is protected to prevent the vehicle from falling out of the gap after rushing out of the road. Safety, at the same time, the space occupation is small, the manufacturing cost is low, and it is suitable for mass promotion.

Description

Guardrail Mechanism for Road and Bridge Engineering

technical field

The invention belongs to the technical field of road engineering and traffic facilities, and more particularly, particularly relates to a guardrail mechanism for road and bridge engineering.

Background technique

With the development of the economy, the use of vehicles is becoming more and more frequent, the road construction is more and more, and the occurrence of traffic accidents is also more and more frequent. For bridge decks or winding highways, the guardrails of roads and bridges are particularly important. The existing guardrails are generally fixed on the roadbed with steel plates or pipes for protection.

For example, application number: CN201210323373.3 A highway guardrail, comprising a guardrail post (1) and a guardrail body (2), wherein the guardrail body (2) is installed on the guardrail post (1), and is characterized in that: the guardrail body ( 2) It includes a protective plate (3) made of elastic plastic, a corrugated steel plate (4), and N elastic component units arranged repeatedly in parallel, and the protective plate (3) is closely attached to the corrugated steel plate (4). , the corrugated steel plate (4) is vertically attached to one side of the N elastic components, and the other side of the N elastic components is fixed on the guardrail post (1), on the top surface of the elastic component and The bottom surface is respectively provided with an upper cover plate and a lower cover plate. The present invention adopts a guard plate (3), a corrugated steel plate (4), and elastic components for multi-layer buffering, which can absorb a large amount of impact energy, thereby effectively protecting the guardrail, vehicles and personal safety, and has the advantages of ingenious design, convenient installation, and application scope wide.

Furthermore, another example is another application number: CN201510216411.9 The present invention provides a highway guardrail, comprising a column (10), a corrugated guardrail plate (20), and a guardrail plate (20) arranged on the column (10) and the guardrail plate. (20) between the buffer brackets (30), the outer side of the upright column (10) is sleeved with a conical cylinder (11), and the outer diameter of the conical cylinder (11) gradually increases from top to bottom; The buffer bracket (30) is sleeved on the outer side of the conical cylinder (11) from above the conical cylinder (11); the guardrail plate (20) is snapped on the buffer bracket (30) )superior. The above-mentioned highway guardrail of the present invention provides a buffer structure that can move upward, removes all connecting components such as bolts, greatly improves the buffering deformation stroke of the highway guardrail, avoids the occurrence of secondary damage, and has less structural modification and is easy to install. .

Based on the search of the above-mentioned two patents and combined with the equipment in the prior art, it is found that the above-mentioned equipment adopts the guardrail plate fixed on the roadbed and sets the buffer device during application, but in the actual occurrence of a large traffic accident, Generally, the bolts or weak structures are broken due to the excessive impact force received by the guardrail at the moment, resulting in a tragedy. Adding a buffer device to the guardrail has little effect on the overall strength improvement. The protection measures are only the first-level protection of the guardrail itself. If bolts or weak structures break, it will inevitably lead to tragic car crashes, and safety needs to be improved.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the present invention provides a guardrail mechanism for road and bridge engineering, so as to solve the problem of adopting guardrails fixed on the roadbed and setting a buffer device. The instantaneous impact force is too large, causing the bolts or weak structures to break, resulting in a tragedy. Adding a buffer device to the guardrail has little effect on improving the overall strength. The protection measures are only the first-level protection of the guardrail itself. Structural fracture will inevitably lead to tragic car crashes, and safety needs to be improved.

The purpose and effect of the present invention's protective fence mechanism for road and bridge engineering are achieved by the following specific technical means:

Guardrail mechanism for road and bridge engineering, including base, guard net storage cavity, connecting rod cavity, guard net, guardrail, guardrail, T-slot, bottom link, T-slider, side link, oil pressure buffer The rear end surface of the base is connected with a set of the guardrails through four sets of the bottom connecting rods; the adjacent two sets of the guardrails are connected through multiple sets of the side connecting rods; the base Two sets of the oil pressure buffers are provided on the inner side of the lower part of the guardrail and the guardrail; in a normal state, the base is fixedly connected to the guardrail through bolts.

Further, the interior of the base is divided into the protective net storage cavity and the connecting rod cavity;

Further, a group of the protective nets are arranged in the protective net storage cavity, and one end of the protective net is fixedly connected with the guardrail;

Further, a plurality of groups of the guard rails are evenly arranged and fixedly connected on the guard rail; the guard rail is a double-layer structure with steel bars on the inner side and buffer rubber on the outer side;

Further, two sets of the T-shaped grooves are opened in the guardrail and the base, and a set of the T-shaped sliders are axially connected to one side of the bottom connecting rod, and the T-shaped sliders are located in the T-shaped grooves. sliding inside;

Further, a scissor structure is formed by hinged connection between each two groups of the bottom links;

Further, the oil pressure buffer is located at the end of the T-shaped groove on one side of the scissor structure close to the hinge shaft;

Further, a group of the buffer sliders are fixedly connected to the shock-absorbing rod of the oil pressure buffer; the buffer sliders slide in the T-shaped groove;

Further, the expanded length of the side link is greater than the length of the bottom link when the bottom link is expanded, and the length of the protective net is greater than the length of the side link.

Compared with the prior art, the present invention has the following beneficial effects:

By setting the protective railing as a double-layer structure with steel bars on the inside and buffer rubber on the outside, good strength can be maintained, and at the same time, it can buffer the car to a certain extent, increase the contact area to protect the vehicle, and protect the safety of the vehicle to the greatest extent; By setting the scissor mechanism, secondary buffering and protection can be performed when the strength of the connecting bolts is insufficient. At the same time, the impact force can be reduced by setting the hydraulic buffer to prevent the damage of components caused by excessive impact force, further improving the safety, and occupying space when not in use. Smaller; by connecting the adjacent two sets of guardrails through foldable side links, when the impact force is too large and the scissor mechanism is damaged, it can be used as a protection block again, and at the same time prevent the vehicle from passing between the two sets of guardrails. The gap between them rushes out of the protective fence, causing danger and improving safety. At the same time, the space occupation is small, the mechanism is simple, and the cost is low; by setting the protective net, the vehicle is protected to prevent the vehicle from falling out of the gap after rushing out of the road; The device protects the vehicle by means of multi-level protection and blocking to prevent the vehicle from rushing out of the road and causing a tragedy, greatly improving safety, and at the same time occupying less space and having low manufacturing cost, which is suitable for mass promotion.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the present invention in an unfolded state.

FIG. 3 is a schematic structural diagram of the present invention in a normal installation state.

FIG. 4 is a schematic view of the left cross-sectional structure of the present invention.

FIG. 5 is a schematic view of the enlarged structure of the part shown in B in FIG. 4 of the present invention.

FIG. 6 is a schematic cross-sectional structure diagram of the present invention.

FIG. 7 is a schematic view of a partial enlarged structure at A in FIG. 6 of the present invention.

FIG. 8 is a schematic structural diagram of the hydraulic shock absorber of the present invention.

In the figure, the corresponding relationship between component names and drawing numbers is:

1-base, 101-protection net storage cavity, 102-rod cavity, 103-protection net, 2-guardrail, 201-protection railing, 202-T-slot, 3-bottom link, 301-T-slide, 4-side connecting rod, 5-hydraulic buffer, 501-buffer slider.

Detailed ways

The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

In the description of the present invention, unless otherwise stated, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer" The orientation or positional relationship indicated by , "front end", "rear end", "head", "tail", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, not An indication or implication that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, is not to be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc. are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection. Ground connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example:

As shown in accompanying drawings 1 to 8:

The present invention provides a guardrail mechanism for road and bridge engineering, including: a base 1, a guard net storage cavity 101, a connecting rod cavity 102, a guard net 103, a guardrail 2, a guardrail 201, a T-slot 202, and a bottom connecting rod 3 , T-shaped slider 301, side connecting rod 4, hydraulic buffer 5 and buffer slider 501; the rear end surface of the base 1 is connected with a set of guardrails 2 through four sets of bottom connecting rods 3; Multiple sets of side connecting rods 4 are connected; two sets of oil pressure buffers 5 are provided on the inner side of the lower part of the base 1 and the guardrail 2; in a normal state, the base 1 is fixedly connected to the guardrail 2 by bolts.

The interior of the base 1 is divided into a protective net storage cavity 101 and a connecting rod cavity 102 .

A set of protective nets 103 is arranged in the protective net storage cavity 101 , and one end of the protective net 103 is fixedly connected to the guardrail 2 .

Among them, the guardrail 2 is evenly arranged and fixedly connected with multiple sets of guardrails 201; the guardrails 201 are double-layered structures with steel bars on the inside and buffer rubber on the outside, which can not only maintain good strength, but also provide a certain amount of buffering to the car, Increase the contact area to protect the vehicle.

The guardrail 2 and the base 1 are both provided with two sets of T-shaped grooves 202 , one side of the bottom link 3 is axially connected with a set of T-shaped sliders 301 , and the T-shaped sliders 301 slide in the T-shaped grooves 202 .

Wherein, each two groups of bottom connecting rods 3 are hinged with each other to form a scissor structure.

The hydraulic buffer 5 is located at the end of the T-slot 202 on the inside of the scissor structure close to the hinge shaft side.

Among them, a set of buffer sliders 501 are fixedly connected to the shock-absorbing rod of the hydraulic buffer 5 ; the buffer sliders 501 slide in the T-shaped groove 202 .

Wherein, the unfolded length of the side link 4 is greater than the length of the bottom link 3 when unfolded, and the length of the protective net 103 is greater than the length of the side link 4 .

When using: When a traffic accident occurs, if the vehicle is at a high speed, the connecting bolts may be pulled off due to the excessive shear force on the connecting bolts when the vehicle hits the guardrail, and the base 1 and the guardrail 2 are separated. The lower bottom connecting rod 3 is unfolded, and the guardrail 2 is unfolded. When the T-shaped slider 301 slides to the end, it hits the oil pressure buffer 5, and buffers under the action of the oil pressure buffer 5 to prevent the impact force from being too large. , causing other parts to break; if the kinetic energy of the vehicle is too large to stop and other connecting parts are pulled off, the side link 4 is deployed to protect and block the vehicle again, and at the same time, the protective net 103 is pulled out from the protective net storage cavity 101. Expand to protect the vehicle.

The embodiments of the present invention are presented for purposes of illustration and description, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use.

Claims (1)

1. The guardrail mechanism for road and bridge engineering, characterized in that: the guardrail mechanism for road and bridge engineering comprises: a base (1), a protective net storage cavity (101), a connecting rod cavity (102), a protective net (103), guardrail (2), guardrail (201), T-slot (202), bottom link (3), T-slider (301), side link (4), hydraulic buffer (5) ) and a buffer slider (501); the rear end surface of the base (1) is connected with a set of the guardrails (2) through four sets of the bottom connecting rods (3); They are connected by a plurality of sets of the side connecting rods (4); two sets of the hydraulic buffers (5) are provided on the lower inner side of the base (1) and the guardrail (2); under normal conditions , the base (1) is fixedly connected with the guardrail (2) through bolts; The interior of the base (1) is divided into the protective net storage cavity (101) and the connecting rod cavity (102); A set of said protective nets (103) is arranged in said protective net storage cavity (101), and one end of said protective net (103) is fixedly connected to said guardrail (2); The guardrail (2) is evenly arranged and fixedly connected with a plurality of groups of the guardrails (201); the guardrails (201) are double-layered structures with steel bars on the inside and buffer rubber on the outside; The guardrail (2) and the base (1) are both provided with two sets of the T-shaped grooves (202), and one side of the bottom connecting rod (3) is axially connected with a set of the T-shaped sliders (301). The T-shaped slider (301) slides in the T-shaped groove (202); A scissor structure is formed by hinged connection between each two groups of the bottom connecting rods (3); The oil pressure buffer (5) is located at the end of the T-slot (202) on one side of the scissor structure close to the hinge shaft; A group of the buffer sliders (501) are fixedly connected to the shock-absorbing rod of the oil pressure buffer (5); the buffer sliders (501) slide in the T-shaped groove (202); The expanded length of the side link (4) is greater than the length of the bottom link (3) when expanded, and the length of the protective net (103) is greater than the length of the side link (4).

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