CN219731789U - Sliding rectangular anti-blocking block double-wave beam guardrail structure - Google Patents

Abstract

The utility model discloses a sliding rectangular anti-blocking block double-wave beam guardrail structure which comprises a rectangular anti-blocking block, a double-wave beam plate and upright post connecting bolts, wherein the rectangular anti-blocking block consists of four parts including 1 connecting plate, 1 sliding piece and 2 supporting plates, the connecting plate is provided with a transverse sliding groove, the transverse sliding groove corresponds to a connecting bolt hole on the double-wave beam plate and is connected with the connecting bolt hole through the connecting bolts, the sliding piece comprises a plate type structure or an anchor ear structure, the sliding piece is in relative sliding connection with the upright post, the supporting plates are respectively arranged on two sides of the connecting plate and the sliding piece, the rectangular anti-blocking block is arranged between the double-wave beam plate and the upright post, the double-wave beam plate is transversely arranged in a through length manner, and the bottom of the upright post is vertically anchored in a foundation. The protection capability of the dual-wave beam guardrail is obviously improved through the design of changing the anti-blocking block and sliding disengagement, so that the A-level protection requirement can be met; compared with the A-level three-wave-shaped beam guardrail, the material quantity can be greatly saved, and the engineering cost is saved; the construction and the installation are simple and convenient, and the construction period is greatly reduced.

Description

Sliding rectangular anti-blocking block double-wave beam guardrail structure

Technical Field

The utility model relates to a waveform beam guardrail in the field of highway safety protection, in particular to a sliding rectangular anti-blocking block double-beam guardrail structure.

Background

The highway guardrail is an important traffic safety protection facility, and reasonable arrangement of the guardrail can play an important role in reducing the injury degree of accidents and saving lives of passengers when traffic accidents occur. The double-wave beam guardrail is the most common highway guardrail structure for early application in China and has the advantages of easy installation and reasonable manufacturing cost.

Through investigation and analysis, the old-fashioned dual-wave beam guardrail structure is based on the early standard construction of the safety performance evaluation standard of expressway guardrails (JTG/T F83-2004), the protection capability meets the A-level requirement, the protection energy is 93KJ, the existing safety performance evaluation standard of expressway guardrails (JTG B05-01-2013) requires that the collision energy of the A-level guardrails reaches more than 160kJ, and in addition, through accident investigation, the old-fashioned dual-wave beam guardrail has weaker protection capability on the current vehicle and frequent accidents, so the old-fashioned dual-wave beam guardrail structure cannot meet the protection requirement under the current traffic characteristics.

The old type double-wave beam guardrail structure comprises a double-wave beam plate, a hexagonal anti-blocking block and a round upright post, and is proved by analysis, wherein the arrangement of the hexagonal anti-blocking block has a larger influence on the protection capability of the double-wave beam plate, the hexagonal anti-blocking block structure is weaker, the vehicle is deformed immediately after being impacted and can directly impact the upright post to cause serious stumbling, the purposes of energy absorption buffering and stumbling prevention are not achieved, in addition, the hexagonal anti-blocking block is rigidly connected with the double-wave beam plate and the round upright post, after the vehicle is impacted, the upright post is inclined backwards, and due to the rigid connection, the deformation of the hexagonal anti-blocking block can pull the double-wave beam plate to jointly incline backwards, so that the height of the double-wave beam plate is directly reduced after being dragged, however, the research of the traffic industry finds that the guardrail height is a key factor for normally protecting the vehicle from being impacted, and the old type double-wave beam guardrail structure problem is serious.

In some previous researches, some enterprises put forward the improvement scheme of the old double-wave beam guardrail structure, and the two types are summarized, namely, the whole is removed and replaced, the removed wave beam member is abandoned, huge manpower, material resources and financial resources are spent for removing the wave beam member, and meanwhile, the new guardrail structure meeting the current standard requirements is replaced, so that the material quantity is greatly increased, and meanwhile, the engineering cost is also greatly increased; and secondly, the middle belt component is reused, most of the middle belt component is reused on the road side after being dismantled, so that part of funds can be saved by reusing the dismantled waveform beam plate to a certain extent, but the quality of the dismantled old component is uneven, most of the dismantled waveform beam plate is required to be subjected to shape adjustment, and meanwhile, huge manpower, material resources and financial resources are required to be spent for storing and transporting the dismantled waveform beam plate, so that the economic efficiency is poor.

The inventor provides a sliding rectangular anti-blocking block double-beam guardrail structure based on the design concept of recycling the old double-beam guardrail component from the aspects of saving materials, economy, safety and construction convenience under the condition that the upright post and the double-wave beam plate do not need to be replaced, so as to meet the A-level guardrail requirement required by the current highway guardrail safety performance evaluation standard (JTG B05-01-2013), greatly reduce resource waste and promote the target realization of 'carbon-to-peak carbon neutralization' of the transportation industry.

Disclosure of Invention

The utility model aims to provide a sliding rectangular anti-blocking block double-beam guardrail structure, which overcomes the defects of the existing double-beam guardrail.

The utility model is realized by the following technical scheme:

the utility model provides a but two ripples roof beam guardrail structures of sliding rectangle prevents blocking piece, two wave form beam plates, stand, connecting bolt, the rectangle prevents blocking piece by 1 connecting plate, 1 slider, 2 backup pads are four parts altogether and are constituteed, the connecting plate sets up horizontal sliding groove, horizontal sliding groove is horizontal slotted hole profile, horizontal sliding groove corresponds with the connecting bolt hole on the two wave form beam plates, the connecting plate passes through connecting bolt with two wave form beam plates and connects, the slider includes plate type structure or staple bolt structure, slider and stand relative sliding connection, the backup pad sets up in connecting plate and slider both sides respectively, the rectangle prevents blocking piece and sets up between two wave form beam plates and stand, two wave form beam plates transversely lead to the wavelength setting, stand bottom vertical anchor is in the basis, two wave form beam plates set up on stand upper portion and mutually perpendicular between the two wave form beam plates center distance basic top surface vertical height H is 630mm ~ 660mm;

the slider is the center setting vertical sliding tray when board type structure, and vertical sliding tray runs through to the bottom from the slider centre, and vertical sliding tray is corresponding with the slip bolt hole on the stand, and directly through slip bolt fixed connection, and the overcoat is outside the stand when the slider is staple bolt component, the horizontal sliding tray top that sets up on the connecting plate or set up the vertical long round mouth that link up, and through fastening bolt and stand fixed connection.

Further, when the section of the upright post is circular, the sliding part in the rectangular anti-blocking block is of an arc-shaped structure matched with the radian of the upright post, and the sliding part is an arc-shaped plate or a circular hoop member;

when the section of the upright post is rectangular, the sliding part in the rectangular anti-blocking block is of a contour structure matched with the outer surface of the upright post, and the sliding part is a flat plate or rectangular hoop member.

Further, when the vertical sliding groove is close to the lower edge of the sliding piece, the sliding piece is provided with a large opening with the width of 5cm, so that the sliding bolt and the sliding piece are convenient to separate, and the outer contour shape of the vertical sliding groove is the combination of a vertical long round opening and a rectangular opening.

Further, the connecting plate, the sliding piece and the supporting plate are integrally processed through welding or bolting, folding wing plates are respectively arranged on two sides of the connecting plate and the sliding piece during bolting, assembling bolt holes are formed in the folding wing plates and the supporting plate, and the folding wing plates and the supporting plate penetrate through the assembling bolt holes to assemble the rectangular anti-blocking blocks into a tube shape with upper openings and lower openings.

Furthermore, rib plates are arranged at the upper opening and the lower opening of the rectangular anti-blocking block or welded with the connecting plate, the sliding piece and the supporting plate.

Further, a through vertical long round opening is formed in the connecting plate, the front portion of the rectangular anti-blocking block is separated from the double-wave beam plate in an upward sliding mode through the connecting bolt hole, a vertical sliding groove is formed in the center of the sliding piece in a plate type structure, and the back portion of the rectangular anti-blocking block is separated from the upright post in an upward sliding mode through the sliding bolt.

Furthermore, the upright post is anchored in the foundation in a pile driving mode, a pile burying mode and a flange plate mode.

Further, the top of the upright post is provided with a post cap, and the post cap is made of plain carbon steel or rubber.

After the technical scheme is adopted, the utility model has the following beneficial effects:

(1) By changing the anti-blocking block and sliding disengagement design, the protection capability of the double-wave beam guardrail is obviously improved, and the A-level protection requirement specified in JTG B05-01-2013 of the highway guardrail safety performance evaluation standard can be met;

(2) Compared with the A-level waveform beam guardrail given by the existing JTG D81-2017 of the design specification of the highway traffic safety facility, the material quantity and the resource can be greatly saved;

(3) Only the anti-blocking block is replaced, the construction and the installation are simple and convenient, and the construction period is greatly reduced;

(4) The old upright posts and the old plates can be completely recycled, so that the investment cost for improving and lifting the guardrail is greatly saved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an example of a side view of embodiment 1 of the present utility model;

FIG. 2 is an example of a front view of embodiment 1 of the present utility model;

FIG. 3 is an example of a top view of embodiment 1 of the present utility model;

FIG. 4 is an example of three views of a rectangular anti-blocking block according to embodiment 1 of the present utility model;

FIG. 5 is an example of a side view of embodiment 2 of the present utility model;

FIG. 6 is a two-view example of a rectangular anti-blocking block according to embodiment 2 of the present utility model;

FIG. 7 is an example of a side view of embodiment 3 of the present utility model;

FIG. 8 is a two-view example of a rectangular anti-blocking block according to embodiment 3 of the present utility model;

FIG. 9 is an example of a side view of embodiment 4 of the present utility model;

FIG. 10 is a two-view example of a rectangular anti-blocking block according to embodiment 4 of the present utility model;

FIG. 11 is a top view example of a rectangular anti-blocking block according to embodiment 5 of the present utility model;

FIG. 12 is an illustration of a two-view of a dual beam plate according to the present utility model;

fig. 13 is an illustration of a front view of a post according to the present utility model.

The figures are labeled as follows:

1. rectangular anti-blocking blocks; 2. a double wave beam plate; 3. a column; 4. a connecting bolt; 5. a sliding bolt; 6. a connecting plate; 7. a slider; 8. a support plate; 9. a lateral sliding groove; 10. a connecting bolt hole; 11. a vertical sliding groove; 12. a sliding bolt hole; 13. a foundation; 14. folding wing plates; 15. assembling bolts; 16. rib plates; 17. a cap; 18. a hoop member; 19. a fastening bolt; H. height of the steel plate.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

As shown in fig. 1 to 3, an example of embodiment 1 of the present utility model is shown. The utility model provides a but the rectangle prevents blocking piece duplex wave beam guardrail structure, includes rectangle prevents blocking piece 1, duplex wave beam plate 2, stand 3, connecting bolt 4, as shown in figure 4, rectangle prevents blocking piece 1 by 1 connecting plate 6, 1 slider 7, 2 backup pad 8 are four parts welding altogether and are constituteed, connecting plate 6 sets up horizontal sliding groove 9, horizontal sliding groove 9 is horizontal slotted hole profile, horizontal sliding groove 9 corresponds with the connecting bolt hole 10 on the duplex wave beam plate 2, connecting plate 6 passes through connecting bolt 4 with duplex wave beam plate 2 and is connected, the overcoat is outside stand 3 when slider 7 is staple bolt component 18, the vertical long round mouth that link up is set up to the horizontal sliding tray 9 top that sets up on the connecting plate 6, and slider 7 passes through fastening bolt 19 relative sliding connection with stand 3, and backup pad 8 sets up respectively in connecting plate 6 and slider 7 both sides, rectangle anti-blocking piece 1 sets up between double wave beam plate 2 and stand 3, and double wave beam plate 2 transversely leads to long setting, and stand 3 bottom passes through pile mode vertical anchor in foundation 13, and double wave beam plate 2 sets up on stand 3 upper portion and mutually perpendicular between the two, and double wave beam plate 2 centre-to-centre spacing foundation 13 top surface vertical height H is 650mm, stand 3 top sets up cap 17, and cap 17 material is plain carbon steel.

The section of the upright post 3 is circular, the sliding part 7 in the rectangular anti-blocking block 1 is of an arc-shaped structure matched with the radian of the upright post 3, and the sliding part 7 is a circular hoop member 18.

As shown in fig. 5, an example of embodiment 2 of the present utility model is shown. The utility model provides a but two ripples roof beam guardrail structure of sliding rectangle prevents blocking piece, includes rectangle prevents blocking piece 1, two ripples roof beam board 2, stand 3, connecting bolt 4, as shown in fig. 6, rectangle prevents blocking piece 1 by 1 connecting plate 6, 1 slider 7, 2 backup pad 8 total four partial welding group forms, connecting plate 6 sets up horizontal sliding groove 9, horizontal sliding groove 9 is horizontal long round hole profile, horizontal sliding groove 9 is corresponding with connecting bolt hole 10 on the two ripples roof beam board 2, connecting plate 6 passes through connecting bolt 4 with two ripples roof beam board 2 and is connected, the center sets up vertical sliding groove 11 when slider 7 is the board type structure, vertical sliding groove 11 runs through to the bottom from the middle of slider 7, vertical sliding groove 11 sets up 5cm wide great opening when being close slider 7 lower limb, the sliding bolt 5 is disengaged with slider 7, vertical sliding groove 11 outline shape is the combination of vertical long circular opening and rectangular opening, vertical sliding groove 11 corresponds with the sliding bolt hole 12 on the stand 3, slider 7 sets up at two sides of two ripples roof beam 3 through sliding bolt 5 relative sliding connection with stand 3, backup pad 8 sets up respectively at two sides of rectangular roof beam 7, two and sets up at two and prevents that the two ripples roof beam 3 are the side, two and set up at two, two and set up between two's roof beam 3, two 13 mm are between two, two's roof beam base 13 are the side, 3 are the two, and two 13 are vertical wave cap base 13 are set up between the base 13, 3.

The section of the upright post 3 is circular, and the sliding piece 7 in the rectangular anti-blocking block 1 is an arc-shaped plate matched with the radian of the upright post 3.

As shown in fig. 7, an example of embodiment 3 of the present utility model is shown. The utility model provides a but two ripples roof beam guardrail structure of sliding rectangle prevents blocking piece, including rectangle prevents blocking piece 1, two ripples roof beam board 2, stand 3, connecting bolt 4, as shown in fig. 8, rectangle prevents blocking piece 1 by 1 connecting plate 6, 1 slider 7, 2 backup pad 8 total four partial welding constitution, connecting plate 6 sets up horizontal sliding groove 9, horizontal sliding groove 9 is horizontal slotted hole profile, horizontal sliding groove 9 is corresponding with the connecting bolt hole 10 on two ripples roof beam board 2, connecting plate 6 passes through connecting bolt 4 with two ripples roof beam board 2 and is connected, the slider 7 is the board type structure time center setting vertical sliding groove 11, vertical sliding groove 11 runs through to the bottom from the middle of slider 7, vertical sliding groove 11 corresponds with the sliding bolt hole 12 on the stand 3, slider 7 passes through sliding bolt 5 relative sliding connection with the stand 3, backup pad 8 sets up respectively in connecting plate 6 and slider 7 both sides, rectangle prevents blocking piece 1 sets up between roof beam board 2 and stand 3, two ripples roof beam board 2 horizontal through the length setting, stand 3 bottom is through the vertical anchor of embedded pile mode in foundation 13, vertical anchor in the setting of stand 3, two ripples roof beam board 2 sets up between two, two ripple roof beam top surface 3 is the top surface of the two of the cap 17 mm, the top of the two ripple roof beam 17 is vertical cap 17 mm.

The section of the upright post 3 is rectangular, and the sliding piece 7 in the rectangular anti-blocking block 1 is a flat plate matched with the outer surface of the upright post 3.

As shown in fig. 9, an example of embodiment 4 of the present utility model is shown. The utility model provides a slidable rectangle prevents two ripples roof beam guardrail structure of piece, including rectangle prevents blocking piece 1, two ripples roof beam board 2, stand 3, connecting bolt 4, as shown in figure 10, rectangle prevents blocking piece 1 by 1 connecting plate 6, 1 slider 7, 2 backup pad 8 are four parts bolt assembly constitution in total and are become wholly, connecting plate 6 and slider 7 both sides set up respectively and roll over pterygoid lamina 14, all set up the pin hole on roll over pterygoid lamina 14 and the backup pad 8, roll over pterygoid lamina 14 and backup pad 8 pass the pin hole through the pin hole of assembling and assemble rectangular prevents blocking piece 1 into upper and lower open-ended tubular shape, connecting plate 6 sets up horizontal sliding groove 9, horizontal sliding groove 9 is horizontal slotted hole profile, horizontal sliding groove 9 corresponds with the connecting bolt hole 10 on the two ripples roof beam board 2, connecting plate 6 is connected through connecting bolt 4 with two ripples roof beam board 2, horizontal sliding groove 9 top sets up the vertical long round mouth of link up, the rectangular anti-blocking block 1 and the double-wave beam plate 2 slide upwards by utilizing connecting bolt holes 10, and the vertical height H of the double-wave beam plate 2 relative to a foundation 13 is adjusted, when the sliding piece 7 is in a plate type structure, a vertical sliding groove 11 is arranged at the center, the vertical sliding groove 11 penetrates through the middle of the sliding piece 7 to the bottom, the vertical sliding groove 11 corresponds to the sliding bolt holes 12 on the upright post 3, the sliding piece 7 and the upright post 3 are in relative sliding connection through sliding bolts 5, a supporting plate 8 is respectively arranged at two sides of the connecting plate 6 and the sliding piece 7, the rectangular anti-blocking block 1 is arranged between the double-wave beam plate 2 and the upright post 3, the double-wave beam plate 2 is transversely arranged in a through length mode, the bottom of the upright post 3 is vertically anchored in the foundation 13 in a flange plate mode, the double-wave beam plate 2 is arranged at the upper part of the upright post 3 and is mutually perpendicular, the center of the double-wave beam plate 2 is 650mm from the vertical height H of the top surface of the foundation 13, the top of the upright post 3 is provided with a post cap 17, and the post cap 17 is made of rubber.

The section of the upright post 3 is rectangular, and the sliding piece 7 in the rectangular anti-blocking block 1 is a flat plate matched with the outer surface of the upright post 3.

As shown in fig. 11, an example of embodiment 5 of the present utility model is shown. A slidable rectangular anti-blocking block is formed by welding four parts of 1 connecting plate 6, 1 sliding piece 7 and 2 supporting plates 8, rib plates 16 are arranged at the upper opening position and the lower opening position of the rectangular anti-blocking block 1 or are welded between the rib plates 16 and the connecting plate 6, the sliding piece 7 and the supporting plates 8, the connecting plate 6 is provided with transverse sliding grooves 9, the transverse sliding grooves 9 are transverse slotted hole outlines, the transverse sliding grooves 9 correspond to connecting bolt holes 10 on the double-wave beam plate 2, the connecting plate 6 and the double-wave beam plate 2 are connected through connecting bolts 4, when the sliding piece 7 is in a plate type structure, a vertical sliding groove 11 is arranged at the center, the vertical sliding groove 11 penetrates to the bottom from the middle of the sliding piece 7, the vertical sliding groove 11 corresponds to a sliding bolt hole 12 on a stand column 3, the sliding piece 7 and the stand column 3 are in relative sliding connection through the sliding bolts 5, the supporting plates 8 are respectively arranged at two sides of the connecting plate 6 and the sliding piece 7,

the sliding piece 7 is a flat plate matched with the outer surface of the rectangular upright post 3.

An example of a dual beam plate according to the present utility model is shown in figure 12. The double-wave beam plate is formed by two wave crests and one wave trough, and is formed by integral rolling, and the connecting bolt holes 10 are arranged in the plane of the wave trough.

An example of a post according to the present utility model is shown in fig. 13. The section shape of the upright post 3 is round or rectangular, the sliding piece 7 in the rectangular anti-blocking block 1 is changed according to the outline shape of the upright post 3, the sliding bolt hole 12 is arranged on the upper portion of the upright post 3, and the bottom of the upright post 3 is vertically anchored in the foundation 13.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (8)

1. The utility model provides a but two ripples roof beam guardrail structure of block is prevented to slip rectangle, prevents block (1), two ripples roof beam board (2), stand (3), connecting bolt (4), its characterized in that: the rectangular anti-blocking block (1) consists of four parts including 1 connecting plate (6), 1 sliding piece (7) and 2 supporting plates (8), wherein the connecting plate (6) is provided with a transverse sliding groove (9), the transverse sliding groove (9) is a transverse slotted hole outline, the transverse sliding groove (9) corresponds to a connecting bolt hole (10) on the double-wave beam plate (2), the connecting plate (6) is connected with the double-wave beam plate (2) through a connecting bolt (4), the sliding piece (7) comprises a plate type structure or a hoop structure, the sliding piece (7) is in relative sliding connection with the upright post (3), the supporting plates (8) are respectively arranged on two sides of the connecting plate (6) and the sliding piece (7), the rectangular anti-blocking block (1) is arranged between the double-wave beam plate (2) and the upright post (3), the bottom of the double-wave beam plate (2) is transversely arranged in a through length mode, the upright post (3) is vertically anchored in a foundation (13), the double-wave beam plate (2) is arranged on the upper part of the upright post (3) and is mutually perpendicular, and the vertical center distance H of the top surface of the double-wave beam plate (2) is 660mm, and the vertical height H of the foundation (13-630 mm is measured;

the center sets up vertical sliding groove (11) when slider (7) are the board type structure, and vertical sliding groove (11) runs through to the bottom from the middle slider (7), and vertical sliding groove (11) are corresponding with slide bolt hole (12) on stand (3), and directly through slide bolt (5) fixed connection, and the overcoat is outside stand (3) when slider (7) are staple bolt component (18), lateral sliding groove (9) top that set up on connecting plate (6) or set up the vertical long round mouth that link up, and through fastening bolt (19) and stand (3) fixed connection.

2. The slidable rectangular anti-blocking dual-beam guardrail structure as set forth in claim 1, further comprising: when the section of the upright post (3) is circular, a sliding part (7) in the rectangular anti-blocking block (1) is of an arc-shaped structure matched with the radian of the upright post (3), and the sliding part (7) is an arc-shaped plate or a circular hoop member (18);

when the section of the upright post (3) is rectangular, the sliding piece (7) in the rectangular anti-blocking block (1) is of a contour structure matched with the outer surface of the upright post (3), and the sliding piece (7) is a flat plate or rectangular hoop member (18).

3. The slidable rectangular anti-blocking dual-beam guardrail structure as set forth in claim 1, further comprising: when the vertical sliding groove (11) is close to the lower edge of the sliding piece (7), the sliding piece (7) is provided with a large opening with the width of 5cm, so that the sliding bolt (5) and the sliding piece (7) are convenient to separate, and the outer contour shape of the vertical sliding groove (11) is the combination of a vertical long round opening and a rectangular opening.

4. The slidable rectangular anti-blocking dual-beam guardrail structure as set forth in claim 1, further comprising: the connecting plate (6), the sliding piece (7) and the supporting plate (8) are integrally machined through welding or bolting, folding wing plates (14) are respectively arranged on two sides of the connecting plate (6) and the sliding piece (7) during bolting, assembling bolt holes are formed in the folding wing plates (14) and the supporting plate (8), and the rectangular anti-blocking blocks (1) are assembled into a tube shape with upper openings and lower openings through the assembling bolt holes by the aid of the assembling bolts (15) and the assembling wing plates (14) and the supporting plate (8).

5. The slidable rectangular anti-blocking dual-beam guardrail structure as set forth in claim 1, further comprising: the rectangular anti-blocking block (1) is provided with rib plates (16) at the upper and lower opening positions, and the rib plates (16) are welded with the connecting plate (6), the sliding piece (7) and the supporting plate (8).

6. The slidable rectangular anti-blocking dual-beam guardrail structure as set forth in claim 1, further comprising: the vertical long round mouth that link up that sets up on connecting plate (6), rectangular prevent that the front portion of block (1) is through connecting bolt hole (10) and two wave beam plates (2) upwards slide and are separated, and the center sets up vertical sliding tray (11) when slider (7) are the board type structure, and rectangular prevents that the back of block (1) is through slide bolt (5) and stand (3) upwards slide and are separated.

7. The slidable rectangular anti-blocking dual-beam guardrail structure as set forth in claim 1, further comprising: the upright post (3) is anchored in the foundation (13) in a pile driving mode, a pile burying mode and a flange plate mode.

8. The slidable rectangular anti-blocking dual-beam guardrail structure as set forth in claim 1, further comprising: the top of the upright post (3) is provided with a post cap (17), and the post cap (17) is made of plain carbon steel or rubber.