CN210177415U

CN210177415U - Highway protective fence

Info

Publication number: CN210177415U
Application number: CN201920667410.XU
Authority: CN
Inventors: Zhichao Yang; 杨志超; Jiaoxue Shi; 石教学; Wenxi Zhu; 朱文喜; Weiwei Zeng; 曾卫卫; Xuezheng Wang; 王雪征
Original assignee: ZHEJIANG GUQIANDAO GREEN FIBER Co Ltd
Current assignee: ZHEJIANG GUQIANDAO GREEN FIBER Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-03-24
Anticipated expiration: 2029-05-10

Abstract

The utility model discloses a highway rail guard, including stand and protection crossbeam, the cross-section of protection crossbeam is circular, the protection crossbeam includes fibre inner core and cladding in the protective layer in the fibre inner core outside, the fibre inner core is formed through spiral winding's mode by a plurality of single fibre. 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

Highway protective fence

Technical Field

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

Background

The conventional road guard rail is generally a connection structure in which corrugated steel guard rail plates are spliced with each other and supported by main posts, and 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 highway rail guard.

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

a highway protective guard 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 first 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 cross section of the protection beam is circular, the protection beam comprises a fiber inner core and a protection layer coated on the outer side of the fiber inner core, the fiber inner core is uniformly arranged into a concentric circle shape, and the fiber inner core is formed by a plurality of single fibers in a spiral winding mode.

When a vehicle and the like impact the guard rail, the flexible protective beam consisting of the fiber inner core and the protective layer generates larger 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 is transmitted step by step, the energy is released step by step, the energy which is 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 inner cores formed by the single fibers in a spiral winding mode have high strength and play a role in resisting impact, the fiber inner cores are uniformly arranged into concentric circles, the energy of vehicles and the like impacting the protective guard can be absorbed in a multi-level mode, the buffering effect is good, the protective layer is arranged, the fiber inner cores are well protected, the service life of the protective guard is prolonged, the strength of the protective guard is increased, the fiber inner cores transmit the energy to the fiber inner cores after the energy of the vehicles is absorbed, the energy is gradually released, and the safety performance is better.

Furthermore, a layer of lining is arranged between the protective layer and the fiber inner core, the lining is formed by weaving single fibers, and the lining can not only fill the gap between the protective layer and the fiber inner core, but also better protect the fiber inner core.

Furthermore, the number of the protection cross beams is at least three, and the protection cross beams are positioned in the same vertical plane.

Further, be equipped with the mounting hole on the connecting piece, coupling assembling includes supports the regulating part, gasket and the fastener in the mounting groove with the protection crossbeam, and the regulating part tip passes behind the mounting hole and links to each other with the fastener. The stand of equidistance on the road surface and laying, the stand at both ends will protect the crossbeam tensile, traditional connected mode, and middle stand only forms the supporting role, and the regulating part in this application will protect the crossbeam to the connecting piece direction counterbalance for regulating part and stand not only undertake the effect of supporting protection crossbeam, but make every stand in the middle also all atress, will protect the crossbeam extension tensile better.

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 tensile strength of the single fiber is more than or equal to 900MPa, the breaking strength of the single fiber 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.

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 side view of the present invention;

FIG. 3 is a schematic top view of the connector;

FIG. 4 is a side view of the connector;

FIG. 5 is a schematic view of the assembly structure of the connecting member and the adjusting member;

FIG. 6 is a cross-sectional view of the shield beam;

FIG. 7 is a schematic structural view of a fibrous core;

fig. 8 is a cross-sectional view of another embodiment of a shield beam.

Detailed Description

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

A highway guard rail comprises a stand column 1 fixedly connected to the ground, a connecting piece 3 connected to the stand column 1 and a protection cross beam 2 vertically stretched on the stand column 1. The connecting piece 3 is a through hollow structure, the cross section of the connecting piece is of a trapezoidal structure, two parallel surfaces are of concave arc surface structures, the connecting surface 31 which is in the shape of a concave arc is matched and fixedly connected with the outer wall of the stand column 1, and the front side of the connecting piece 3 is provided with a mounting groove 32 matched with the shape of the protective beam 2.

The protection crossbeam 2 links firmly on connecting piece 3 through coupling assembling, and is concrete, has seted up two mounting holes on the connecting piece 3, and coupling assembling includes that the regulating part 41 that is the U type, fastener 43 and the gasket 42 of setting between fastener 43 and the 3 inner walls of connecting piece, and the free end of regulating part 41 has the external screw thread structure, and it passes behind the connecting piece 3 and fastener 43 threaded connection, and in this embodiment, fastener 43 is the 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 cyclic annular gasket 42 can avoid the installation, can increase the contact stress area of fastener 43, increases the steadiness of connecting.

The equidistance of a plurality of stands 1 of highway both sides is laid, the tensile connection of protection crossbeam 2 is on stand 1, regulating part 41 will protect crossbeam 2 and firmly support on mounting groove 32, can transmit power for connecting piece 3 fast after having flexible protection crossbeam 2 atress, and then transmit for stand 1, make every stand 1 all have the tensile effect to continuous protection crossbeam 2, and not only the stand 1 atress at both ends, consequently, whole rail guard stress everywhere is relatively even, whole structure is also more stable, firm.

The cross section of the protection beam 2 is circular, the protection beam 2 comprises a fiber inner core 22 and a protection layer 21 coated on the outer side of the fiber inner core 22, the fiber inner core 22 is formed by a plurality of single fibers 221 in a spiral winding mode to meet the requirement of overall strength, and the fiber inner core 22 is arranged in a multilayer concentric circle structure from inside to outside.

The single fiber is polyester filament fiber, the tensile strength of the single fiber is not less than 900MPa, and the breaking strength of the single fiber is more than 8.0 cN/dtex; the protective layer 21 is a thermoplastic resin layer, especially a PVC resin layer, or a modified PVC resin layer with flame retardant and anti-aging functions, and has a tensile strength of not less than 30 MPa.

In another embodiment, a lining 23 is additionally arranged between the protective layer 21 and the fiber inner core 22, the lining 23 is formed by weaving a single fiber 221, the lining 23 can fill a gap between the protective layer 21 and the fiber inner core 22, the fiber inner core 22 can be better protected, and the fiber is polyester fiber.

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

1. A highway protective guard 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 first 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 method is characterized in that: the cross section of the protection beam is circular, the protection beam comprises a fiber inner core and a protection layer coated on the outer side of the fiber inner core, the fiber inner core is uniformly arranged into a concentric circle shape, and the fiber inner core is formed by a plurality of single fibers in a spiral winding mode.

2. A road guard rail according to claim 1, wherein: a layer of lining is arranged between the protective layer and the fiber inner core, and the lining is formed by weaving single fibers.

3. A road guard rail according to claim 1, wherein: the number of the protection beams is at least three, and the protection beams are positioned in the same vertical plane.

4. A road guard rail according to claim 1, wherein: the connecting piece is provided with a mounting hole, the connecting assembly comprises an adjusting piece, a gasket and a fastener, the protective beam is abutted to the mounting groove, and the end of the adjusting piece penetrates through the mounting hole and then is connected with the fastener.

5. A road guard rail according to claim 4 wherein: the connecting piece is of a hollow structure.

6. A road guard rail according to claim 1, wherein: the protective layer is a thermoplastic resin layer.

7. A road guard rail according to claim 6 wherein: the thermoplastic resin layer adopts a resin layer with PVC as a main component.

8. A road guard rail according to claim 2, wherein: the tensile strength of the single fiber is greater than or equal to 900MPa, the breaking strength of the single fiber 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.