CN210163822U - Rail guard for highway - Google Patents

Abstract

The utility model discloses a rail guard for highway, including stand and protection crossbeam, be equipped with connecting piece, its characterized in that between stand and the protection crossbeam: the connecting piece is provided with a connecting surface matched with the outer wall of the upright post and a mounting groove contacted with the protective beam, the connecting surface is of an inwards concave cambered surface structure, and the protective beam is connected with the connecting piece through a connecting component; the protection beam comprises a protection layer on the outer side and fiber monofilaments penetrating through the protection layer, and the fiber monofilaments are distributed in the protection layer in an array manner. The utility model discloses connection structure is simple, and it is convenient fast to install, connects firmly, and the displacement of protection crossbeam warp greatly, can progressively release the energy that the impact produced, has improved shock-absorbing capacity, and the security performance is higher.

Description

Rail guard for highway

Technical Field

The utility model relates to a highway protective equipment technical field especially relates to a rail guard for highway.

Background

Conventional road guard rails are generally a connection structure in which corrugated steel guard rail plates are spliced with each other and supported by main posts,

the above structure has the following disadvantages:

1. the steel is used as a hard material, the breaking elongation of the steel is only about 3%, the deformation degree is small, and the energy absorption effect is poor.

2. When a car accident or strong impact occurs, the steel guardrail plate is very easy to insert into a car body, and great damage is caused to personnel on the car.

3. The area of sheltering from of steel guardrail board is great, when installing in the road both sides, because see the guardrail of longer distance for a long time, can cause a strong oppression to the pedestrian on the road and feel, lead to the fact certain influence to going.

4. For the rugged road in the mountainous area, the hard steel guardrail plate is inconvenient to install, the bent place needs special treatment to realize continuous installation, and great difficulty is brought to installation.

5. The steel guardrail plate has high manufacturing energy consumption, particularly in the corrosion-resistant galvanizing process, the carbon emission is large, the environment is seriously polluted, and the energy-saving and environment-friendly effects are poor.

6. The standard length of the steel guardrail is 4.32m, 1000 pieces are needed in each kilometer, the total weight is more than 60 tons, single-piece bolt connection is needed during installation, and the transportation cost and the like are high.

The steel guardrail plate is simple in connection mode, single in treatment method and incapable of well adapting to various environmental conditions.

The present application was made based on this.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide a rail guard for highway.

In order to achieve the above object, the present invention provides the following technical solutions:

a highway guard railing comprises an upright post and a protective cross beam, wherein a connecting piece is arranged between the upright post and the protective cross beam, a connecting surface matched with the outer wall of the upright post and a mounting groove contacted with the protective cross beam are arranged on the connecting piece, the connecting surface is of an inwards concave cambered surface structure, and the protective cross beam is connected with the connecting piece through a connecting component; the protection beam comprises a protection layer on the outer side and fiber monofilaments penetrating through the protection layer, and the fiber monofilaments are distributed in the protection layer in an array manner.

When a vehicle and the like impact the guard rail, the flexible protective beam consisting of the fiber monofilaments and the protective layers generates large deformation displacement, a good buffer effect can be formed, then the impact force is transmitted to the connecting piece, the connecting piece deforms at first, energy is diluted and then transmitted step by step, the energy is released step by step, the energy which is reversely rebounded to the vehicle after being absorbed is reduced to the minimum, and the safety performance is improved; the arrangement of the concave cambered surface enables the connection between the protective beam and the connecting piece to be tighter; the fiber monofilaments penetrate through the protective layer and are distributed in an array shape, so that the strength is high, the impact resistance effect is achieved, the energy of vehicles and the like impacting the protective guard can be effectively absorbed, and the buffering effect is good; the fiber monofilaments are distributed in the protective layer in an array manner, are tightly attached to each other, can provide buffering and damping effects when impacted, and greatly enhance the energy absorption effect

Further, the cross-section of protection crossbeam is square, be equipped with the mounting hole on the connecting piece, coupling assembling includes and supports the protection crossbeam in the regulating part of mounting groove, cushion and fastener, the thickness of cushion is greater than the degree of depth of mounting groove, link to each other with the fastener after regulating part tip passes mounting hole and cushion, square protection crossbeam is arranged in behind the mounting groove, the distance between regulating part and the protection crossbeam is less, unable direct mount fastener, need install the cushion additional in order to satisfy the installation demand.

Further, the cross-section of protection crossbeam is trapezoidal, be equipped with the mounting hole on the connecting piece, coupling assembling includes and supports the regulating part, gasket and the fastener of protection crossbeam in the mounting groove, the regulating part tip passes behind the mounting hole and links to each other with the fastener, the regulating part offsets the protection crossbeam to the connecting piece direction, make regulating part and stand not only undertake the effect of supporting the protection crossbeam, but make every stand in the middle of also all atress, it is tensile to extend better to protect the crossbeam.

Further, the connecting piece is of a hollow structure.

Further, the protective layer is a thermoplastic resin layer.

Further, the thermoplastic resin layer is a resin layer whose main component is PVC. The color, the identification and the like can be sprayed on the outer side of the protective layer, the consistency of the protective guard and the landscape is increased, the protective guard and the landscape are integrated, the attractiveness is higher, the mood of a driver can be pleased, and the driving safety performance is further improved.

Furthermore, the outer wall of the protective layer is provided with a plurality of convex ribs extending along the length direction of the protective beam. The rib not only increases the strength of the protective guard, but also increases the friction between the rib and the connecting assembly during installation, so that the anti-skidding effect is achieved, and the installation stability is better.

Furthermore, the tensile strength of the fiber monofilament is more than or equal to 900MPa, the breaking strength of the fiber monofilament is more than or equal to 8.0cN/dtex, and the tensile strength of the protective layer is more than or equal to 30 MPa.

Further, the quantity of protection crossbeam is at least three, and it is the arc and lays, and middle protection crossbeam more is close to the stand, and the protection crossbeam that is not in same vertical plane forms a great C font structure of opening, lives the object pocket when being favorable to the collision, and the power of going out the object rebound is littleer, avoids vehicle etc. to be strikeed many times repeatedly, falls to the minimum with the injury.

The beneficial effect of this application is: the connecting structure is simple, the installation is quick and convenient, the connection is stable, the displacement deformation of the protective beam is large, the energy generated by the collision can be gradually released, the buffering performance is improved, the safety performance is higher, the weight is lighter, and the installation difficulty is low.

Drawings

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

FIG. 2 is a first schematic structural view showing an assembly manner of the connecting member and the adjusting member;

FIG. 3 is a second schematic structural view of an assembly of the connecting member and the adjusting member;

FIG. 4 is a schematic structural view of a guard beam;

FIG. 5 is a first schematic structural view showing another assembly manner of the connecting member and the adjusting member;

FIG. 6 is a second schematic structural view of another assembly manner of the connecting member and the adjusting member;

fig. 7 is a schematic structural view of another protective beam.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to fig. 1-7.

A guard rail for a road comprises a vertical column 1 fixedly connected on the ground, a connecting piece 3 connected on the vertical column 1 and a guard beam 2 vertically stretched on the vertical column. Connecting piece 3 is the hollow structure who runs through, and its transversal trapezium structure that personally submits, and two faces that parallel are indent cambered surface structure, and wherein be the outer wall kiss and fixed connection of indent curved connection face 31 and stand 1, connecting piece 3 front side open be equipped with protection crossbeam shape assorted mounting groove 32, protection crossbeam 2 includes the protective layer 21 in the outside, and wear to locate the fibre monofilament 22 in protective layer 21, fibre monofilament 22 is array form and distributes in protective layer 21.

In one embodiment, the cross section of the protection beam 2 is square, the connecting piece 3 is provided with a mounting hole, the connecting assembly comprises an adjusting piece 41 for supporting the protection beam 2 to the mounting groove 32, a cushion block 42 and a fastener 43, the thickness of the cushion block 42 is larger than the depth of the mounting groove 32, the free end of the adjusting piece 41 is provided with an external thread structure, the adjusting piece passes through the connecting piece 3 and the cushion block 42 and then is in threaded connection with the fastener 43, the fastener 43 is a bolt, and the problem that the distance between the adjusting piece 41 and the protection beam 2 is too small to be directly fixed by the bolt can be solved by the cushion block 42.

In another embodiment, the cross section of the protection beam 2 is trapezoidal, the connecting member 3 is provided with a mounting hole, the connecting assembly comprises an adjusting member 41 for supporting the protection beam 2 against the mounting groove 32, a gasket 44 and a fastening member 43, the free end of the adjusting member 41 is provided with an external thread structure, the adjusting member penetrates through the connecting member 3 and then is in threaded connection with the fastening member 43, and the fastening member 43 is a bolt. Because the connecting piece 3 is the arc structure with the inside wall of adjusting part 41 complex, adjusting part 41 takes place relative deflection when the setting of gasket 44 can avoid the installation, can increase the contact stress area of fastener 43, increases the steadiness of connecting.

A plurality of stands 1 equidistance of highway both sides is laid, and the tensile connection of protection crossbeam 2 is on stand 1, and regulating part 41 will protect the crossbeam and firmly support on mounting groove 32, has and acts on stand 1 through connecting piece 3 after the flexible protection crossbeam 2 atress for every stand 1 all has the tensile effect to continuous protection crossbeam 2, and not only the stand 1 atress at both ends, therefore whole rail guard atress everywhere is relatively even, and overall structure is also more stable, firm.

The fiber monofilament 22 is polyester filament fiber with tensile strength of 900MPa or more and breaking strength of 8.0cN/dtex or more, and the protective layer 21 is thermoplastic resin layer, especially PVC resin layer or modified PVC resin layer with flame retardant and anti-aging functions with tensile strength of 30MPa or more.

The outer wall of the protective layer 21 is provided with a plurality of ribs 23 extending along the length of the protective beam.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides a rail guard for highway, includes stand and protection crossbeam, be equipped with connecting piece, its characterized in that between stand and the protection crossbeam: the connecting piece is provided with a connecting surface matched with the outer wall of the upright post and a mounting groove matched with the contact surface of the protective beam, the connecting surface is of an inwards concave cambered surface structure, and the protective beam is connected with the connecting piece through a connecting component; the protection beam comprises a protection layer on the outer side and fiber monofilaments penetrating through the protection layer, and the fiber monofilaments are distributed in the protection layer in an array manner.

2. A guard rail for roads according to claim 1, wherein: the cross-section of protection crossbeam is square, be equipped with the mounting hole on the connecting piece, coupling assembling includes and supports the protection crossbeam in regulating part, cushion and the fastener of mounting groove, the thickness of cushion is greater than the degree of depth of mounting groove, link to each other with the fastener after regulating part tip passes mounting hole and cushion.

3. A guard rail for roads according to claim 1, wherein: the cross-section of protection crossbeam is trapezoidal, be equipped with the mounting hole on the connecting piece, coupling assembling includes and supports the protection crossbeam in regulating part, gasket and the fastener of mounting groove, the regulating part tip passes and links to each other with the fastener behind the mounting hole.

4. A guard rail for roads according to claim 2 or 3, wherein: the connecting piece is of a hollow structure.

5. A guard rail for roads according to claim 2 or 3, wherein: the protective layer is a thermoplastic resin layer.

6. A guard rail for roads according to claim 5, wherein: the thermoplastic resin layer adopts a resin layer with PVC as a main component.

7. A guard rail for roads according to claim 2 or 3, wherein: the outer wall of the protective layer is provided with a plurality of convex edges extending along the length direction of the protective beam.

8. A guard rail for roads according to claim 1, wherein: the tensile strength of the fiber monofilament is greater than or equal to 900MPa, the breaking strength of the fiber monofilament is greater than or equal to 8.0cN/dtex, and the tensile strength of the protective layer is greater than or equal to 30 MPa.

9. A guard rail for roads according to claim 1, wherein: the number of the protection beams is at least three, and the protection beams are arranged in an arc shape.

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