CN112281717A

CN112281717A - Prevent hindering snow SBM level opening guardrail

Info

Publication number: CN112281717A
Application number: CN202011288082.6A
Authority: CN
Inventors: 陈柯; 王新宇; 王铁军; 刘云友
Original assignee: HEILONGJIANG HIGHWAY SURVEY AND DESIGN INSTITUTE
Current assignee: HEILONGJIANG HIGHWAY SURVEY AND DESIGN INSTITUTE
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-01-29
Anticipated expiration: 2040-11-17
Also published as: CN112281717B

Abstract

The invention relates to the technical field of guardrails, in particular to a snow-blocking-preventing SBM-level opening guardrail which comprises two sets of end units and a plurality of sets of middle units connected between the two sets of end units, wherein the units are detachably connected; each end unit and each middle unit comprise two opposite corrugated plates, a plurality of supporting frames arranged between the two corrugated plates at intervals and box-shaped upright post fixing pieces, and the end units and the middle units are arranged on roads and arranged on upright posts through the upright post fixing pieces; when the corrugated plate is impacted and stressed by a vehicle, the upright post fixing piece transmits the stress of the corrugated plate to the upright post after buffering and energy dissipation in multiple directions; the invention has the beneficial effects that: the end units, the middle units and the road surface are provided with gaps, snow clearing is facilitated, the units are detachably connected and are easy to install and disassemble, and when a vehicle collides, the upright post fixing piece has buffering and energy dissipation effects in multiple directions, so that the possibility of stumbling and blocking caused by collision of the vehicle and a guardrail is reduced.

Description

Prevent hindering snow SBM level opening guardrail

Technical Field

The invention relates to the technical field of guardrails, in particular to a snow-blocking-preventing SBM-level opening guardrail.

Background

The guardrail and other protective facilities which can prevent vehicles from rushing out of roads or reversely advancing need to be arranged on high-grade roads, expressways and bridges, the guardrail is an important facility for guaranteeing road traffic safety, the guardrails also need to be arranged on the roads in the characteristic areas of high latitude, low altitude and frozen seasons, the unique geographic environment is adapted to, and when the ordinary road guardrails are required to be arranged, the obstacles to snow accumulation and snow removal are also prevented.

The traditional open guardrail has no energy dissipation function and only serves as an intercepting device; and the phenomenon of stumbling is easy to happen when the automobile collides with the guardrail; the tires of the vehicle easily collide with the upright posts directly, the vehicle is easily stumbled and blocked, and the vehicle stops moving forwards, so that the guard bar loses the protection capability, and serious potential safety hazards are formed; therefore, it is necessary to design a snow-proof and anti-blocking guardrail suitable for highway facilities in special areas of high latitude, low altitude and frozen season areas.

Disclosure of Invention

The invention aims to provide a snow-resistant SBM-level opening guardrail to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

a snow-resistant SBM-level opening guardrail comprises two sets of end units and a plurality of sets of middle units connected between the two sets of end units, wherein the units are detachably connected; each end unit and each middle unit comprise two opposite corrugated plates, a plurality of supporting frames arranged between the two corrugated plates at intervals and box-shaped upright post fixing pieces, and the end units and the middle units are arranged on roads and arranged on upright posts through the upright post fixing pieces; when the corrugated plate is impacted and stressed by a vehicle, the upright post fixing piece transmits the stress of the corrugated plate to the upright post after buffering and energy dissipation in multiple directions.

As a further scheme of the invention: and moving pieces are arranged at the bottom of part of the supporting frame and drive the end units and the middle unit to move.

As a still further scheme of the invention: the moving member includes the truckle that is the splayed and installs in braced frame bottom outside and inboard for contact with the stand after preventing the vehicle striking wave plate.

As a still further scheme of the invention: the distance between adjacent support frames is 800-1200 mm.

As a still further scheme of the invention: and a part of a supporting frame between the two corrugated plates of the end unit is used as a beam frame, and friction beams are arranged on two sides or one side of the bottom of the beam frame.

As a still further scheme of the invention: and joints which can be mutually butted are respectively arranged at the two ends of the end unit and the middle unit.

As a still further scheme of the invention: the stand mounting includes the pipe and installs the support frame with the laminating of wave plate on the pipe outer circumference.

As a still further scheme of the invention: the side end of the support frame along the extending direction of the corrugated plate is provided with a connecting hole, and a pin passes through the connecting hole and is inserted into a pin hole formed in the stand column.

As a still further scheme of the invention: and a buffer part with an energy dissipation effect is arranged at the joint of the circular tube and the upright post.

As a still further scheme of the invention: and one end of the end unit, which is far away from the middle unit, is smoothly connected with the corrugated beam guardrail of the central separation zone.

Compared with the prior art, the invention has the beneficial effects that: the end unit and the middle unit respectively comprise two opposite corrugated plates, a plurality of supporting frames arranged between the two corrugated plates at intervals and box-shaped upright post fixing pieces, and the end unit and the middle unit are arranged on a road and arranged on upright posts through the upright post fixing pieces; when the vehicle strikes, the stand mounting is being out of shape along vehicle walking direction, vertical direction and road surface cross-section direction atress, accomplishes and transmits the atress of wave form board to the stand after the buffering energy dissipation, has reduced the possibility that car and guardrail striking took place to stumble the phenomenon of hindering, and tip unit and middle unit are gapped with the road surface, do benefit to the clear snow, still install easily, dismantle.

Drawings

Fig. 1 is a schematic overall structure diagram of the snow-blocking-preventing SBM-level opening guardrail in the embodiment of the invention.

Fig. 2 is a schematic top view of the snow-block-proof SBM grade opening guardrail in the embodiment of the invention.

Fig. 3 is a schematic sectional view taken along the line a-a in fig. 1.

Fig. 4 is a schematic structural diagram of an end unit and a transition section in an embodiment of the invention.

FIG. 5 is a top view of an end unit and transition piece in an embodiment of the invention.

Fig. 6 is a schematic cross-sectional view taken along the direction B-B in fig. 4.

Fig. 7 is a schematic view of an assembly structure of the intermediate unit in the embodiment of the present invention.

Fig. 8 is a schematic view of an assembly structure of an end unit in the embodiment of the present invention.

In the drawings: 100. end unit, 200, middle unit, 300, transition section, 400, upright I, 401, upright II, 1, joint, 2, corrugated plate, 3, fixed frame, 4, upright fixing piece, 5, movable frame, 6, friction beam, 7, beam frame, 8, lower support plate, 9 and caster.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Referring to fig. 1-2, in the embodiment of the present invention, the anti-snow SBM grade opening guardrail includes two sets of end units 100 and a plurality of sets of middle units 200 connected between the two sets of end units 100, and the units are detachably connected; each of the end units and the middle unit comprises two corrugated plates 2 which are oppositely arranged, a plurality of supporting frames which are arranged between the two corrugated plates 2 at intervals and box-shaped upright post fixing pieces 4, and the end units 100 and the middle unit 200 are arranged on a road and arranged on upright posts through the upright post fixing pieces 4; when the corrugated plate is stressed by vehicle collision, the upright post fixing piece 4 transmits the stress of the corrugated plate to the upright post after the energy dissipation of the corrugated plate is buffered in multiple directions.

Specifically, the length of each end unit and the length of each middle unit are 4000mm, eight sets of middle units are connected in sequence, and then two sets of end units are respectively connected to two ends of the middle units which are connected in sequence; two upright columns are arranged on the road at intervals, and the specifications of the upright columns are phi 140 x 4.5 respectively; phi 140 x 4.5 of pillars II401, the distance between pillars I400 and pillars II401 is 1000 mm. The end units and the middle units are respectively installed on the upright post II401 and the upright post I400 through upright post fixing parts 4 and are fixed through connecting pins to build an SBm (four) -level central separation belt opening guardrail, the height of the guardrail is 950mm, the installation width is 500mm, and the installation unit length is 40m of the highway opening length.

As shown in fig. 7 and 8, the two ends of the end unit and the middle unit are respectively provided with a joint 1 which can be butted with each other. The stand mounting includes the pipe and installs the support frame with the laminating of wave plate on the pipe outer circumference. The end units and the middle unit, and the middle unit are butted through joints 1 and fixed through connecting rods to realize detachable connection; the supporting frame of the upright post fixing piece 4 is fixedly connected with the corrugated plates on the two sides, the round pipe is matched with the upright post, the side end of the supporting frame along the extension direction of the corrugated plates is provided with a connecting hole, and a pin passes through the connecting hole and is inserted into a pin hole formed in the upright post so as to connect and fix the upright post, the end part unit and the middle unit; the whole body is convenient to disassemble and assemble;

as shown in fig. 2-3, the supporting frames have the function of connecting the two corrugated plates and also have the function of transferring kinetic energy, the distance between every two adjacent supporting frames is 800mm, and the supporting frames and the upright post fixing pieces are installed in a staggered mode to jointly support and connect the two corrugated plates. Or the distance between the adjacent supporting frames is 1200mm, and the supporting frames and the upright post fixing pieces are installed in a staggered mode. Preferably, the distance between every two adjacent supporting frames is 1000mm, the supporting frames and the upright post fixing pieces are installed in a staggered mode, the distance between the supporting frames and the upright post fixing pieces is equal, stress on each part of the two corrugated plates is more uniform, and a better protection effect is achieved. The supporting frame shares the stress of the corrugated plate on the impacted side, and the deformation and the overlarge failure of the corrugated plate on one side are avoided.

In conclusion, when a vehicle impacts the corrugated plate, the upright post fixing piece is stressed and deformed along the traveling direction of the vehicle, the vertical direction and the cross section direction of the road surface, and the stress of the corrugated plate is transmitted to the upright posts after buffering and energy dissipation are completed, so that the hard impact of the vehicle is reduced; and because the indirect effect of stand mounting and vehicle avoids the stand to block the wheel directly, and then has reduced the possibility that car and guardrail striking took place to stumble and hinder the phenomenon, and tip unit and middle unit and road surface are gapped, do benefit to the clear snow, still install, dismantle easily.

Referring to fig. 1, in a preferred embodiment of the present invention, a buffer member with an energy dissipation function is installed at a connection position of the circular tube and the column.

The buffer piece is a rubber pad, and the rubber pad is arranged at the joint of the circular tube and the stand column, so that friction at the joint of the circular tube and the stand column is increased. But also acts as a buffer when the corrugated plate 2 is stressed. For roads in high-latitude, low-altitude and seasonal freezing areas, the rubber pads are made of low-temperature-resistant cold-resistant rafter rubber, so that the elasticity of the rubber pads can be kept under the low-temperature condition.

Referring to fig. 4-6, in another embodiment of the present invention, the end of the end unit away from the middle unit is smoothly connected to the central division band corrugated beam guardrail.

The end part unit is far away from the end part of the middle unit, a transition plate is arranged at one end of the end part unit to serve as a transition section 300, one end of the transition plate, which is connected with the end part unit, corresponds to the width of the end part unit, one end of the transition plate, which is connected with the wave-shaped beam guardrail of the central separation zone, corresponds to the width of the wave-shaped beam guardrail of the central separation zone, the middle part of the transition plate is in smooth transition, the continuity of the distribution of the force of the transition section 300 is ensured.

Referring to fig. 3 and 6, in another embodiment of the present invention, a moving member is installed at a bottom portion of a portion of the supporting frame, and the moving member drives the end unit and the middle unit to move.

Specifically, as shown in fig. 7-8, a part of the supporting frame is used as a movable frame 5, and the other part is used as a fixed frame 3 for connecting the corrugated plate 2; moving parts are arranged on two sides of the bottom of the movable frame 5 in a splayed shape, each moving part comprises a support rod and a caster 9, each caster 9 is arranged at the bottom of the movable frame 5 in a splayed shape through the support rod, and the caster 9 is in contact with the vehicle before the vertical column in the process that the vehicle impacts the corrugated plate; prevent direct and stand contact behind the vehicle striking wave plate because the intensity of stand is great, compare with other parts more non-deformable, can't play better cushioning effect to the vehicle. The trundles are arranged in a splayed shape, and when the vehicle impacts the corrugated plate, the parts of the trundles 9, which are close to the center of the road, contact the vehicle before the upright posts; further reducing the possibility of stumbling phenomenon caused by the collision between the automobile and the guard rail.

Referring to fig. 8, in another embodiment of the present invention, a part of a supporting frame between two corrugated plates of the end unit is used as a beam frame 7, and friction beams 6 are installed on both sides or one side of the bottom of the beam frame.

Friction cross beams are arranged on two sides of the bottom of the cross beam frame 7, and a lower supporting plate 8 is arranged between the two sides and used for mutually transmitting kinetic energy when the friction cross beams on any side are stressed; when the vehicle impacts the corrugated plate on any side, the vehicle body is contacted with the corrugated plate, and the wheels are contacted with the friction cross beam; the corrugated plate and the friction cross beam reduce the kinetic energy of the vehicle together, and the function and the efficiency of reducing the kinetic energy of the vehicle are improved. After the corrugated plates are impacted, the upright post fixing pieces between the two corrugated plates deform under stress along the traveling direction of the vehicle, the vertical direction and the cross section direction of the road surface, the stress of the corrugated plates is transmitted to the upright posts after the buffering and energy dissipation are completed, the upright posts are prevented from directly blocking wheels, and the possibility of stumbling and blocking caused by the impact of the vehicle and the guardrail is further reduced.

In addition, for the snow-proof SBM grade opening guardrail arranged at the edge of the road, a friction beam can be installed at one side of the bottom of the beam frame 7, namely, at one side close to the center of the road. When the vehicle impacts the corrugated plate on the inner side, the vehicle body is contacted with the corrugated plate, and the wheels are contacted with the friction cross beam; the corrugated plate and the friction cross beam reduce the kinetic energy of the vehicle together, and the function and the efficiency of reducing the kinetic energy of the vehicle are improved.

The working principle of the invention is as follows: when a vehicle impacts the corrugated plate, the upright post fixing piece is stressed and deformed along the traveling direction, the vertical direction and the cross section direction of the road surface, and the stress of the corrugated plate is transmitted to the upright posts after the buffering and energy dissipation are finished, so that the hard impact of the vehicle is reduced; and because the indirect effect of stand mounting and vehicle avoids the stand directly to block the wheel, and then has reduced the possibility that car and guardrail striking took place to stumble and hinder the phenomenon.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A snow-resistant SBM-level opening guardrail comprises two sets of end units and a plurality of sets of middle units connected between the two sets of end units, wherein the units are detachably connected; the structure is characterized in that each end unit and each middle unit respectively comprise two corrugated plates which are arranged oppositely, a plurality of supporting frames which are arranged between the two corrugated plates at intervals and box-shaped upright post fixing pieces, and the end units and the middle units are arranged on the upright posts on the road through the upright post fixing pieces; when the corrugated plate is impacted and stressed by a vehicle, the upright post fixing piece transmits the stress of the corrugated plate to the upright post after buffering and energy dissipation in multiple directions.

2. The snow guard SBM grade opening guardrail of claim 1, wherein a portion of the bottom of the support frame is mounted with a moving member that moves the end units and the intermediate unit.

3. The snow blockage prevention SBM grade opening barrier as claimed in claim 2, wherein the moving member comprises castors installed at the outer and inner sides of the bottom of the supporting frame in a splayed shape for preventing the vehicle from contacting the columns after hitting the corrugated plate.

4. A snow guard SBM grade opening guardrail as claimed in claim 1, wherein the spacing between adjacent support frames is 800 to 1200 mm.

5. Snow blockage-preventing SBM grade opening guardrail according to claim 1, wherein the part of the supporting frame between the two corrugated plates of the end unit is used as a beam frame, and friction beams are installed on two sides or one side of the bottom of the beam frame.

6. Snow blockage-preventing SBM grade opening guardrail according to claim 1, wherein the two ends of the end unit and the middle unit are respectively provided with a joint which can be butted with each other.

7. The snow blockage prevention SBM grade opening guardrail of claim 1, wherein the column fixing piece comprises a round tube and a supporting frame which is arranged on the outer circumference of the round tube and is jointed with the corrugated plate.

8. The snow blockage preventing SBM grade opening guardrail of claim 7, wherein the side end of the supporting frame along the extending direction of the corrugated plate is provided with a connecting hole for a pin to pass through and be inserted into a pin hole arranged on the upright column.

9. The snow blockage preventing SBM grade opening guardrail of claim 7, wherein a buffer member with an energy dissipation function is installed at the connection part of the circular tube and the upright column.

10. A snow guard SBM grade opening guardrail according to any one of claims 1-9, characterized in that the end of the end unit remote from the middle unit is smoothly connected with the central division strip wave beam guardrail.