Expressway channel-crossing guardrail device

Abstract

An expressway channel-crossing guardrail device comprises a plurality of round pipe stand columns arranged on the outer side of a channel beside an expressway and a reinforcing and extending structure assembled on the round pipe stand columns, the reinforcing and extending structure is connected with an outward-extending guardrail plate, and the reinforcing and extending structure comprises a sleeve, a supporting beam and a hexagonal-prism-shaped energy absorption block which are sequentially connected. A connecting plate is arranged on the side, connected with the abduction guardrail plate, of the energy absorption block. According to the channel-crossing guardrail device for the expressway, the connecting plate structure is additionally adopted, so that the fitting property of the energy absorption block and the outward-extending guardrail is guaranteed, the overall assembly of the outward-extending guardrail plate is attractive, and the protection and energy absorption effects of the overall guardrail structure can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to traffic safety facilities technical field especially relates to a highway across ditch and canal guardrail device. BACKGROUND

[0002] According to the requirement of "highway traffic safety facilities design specification" (JTGD81-2017), the guardrail end head of highway traffic flow should be extended to the outside of the soil shoulder width range; When located at the junction of filling and excavation, it should be extended and buried in the soil of the excavation section without forming an obstacle; When it cannot be extended, a crash-proof end head is set, or a crash pad is set in front of the guardrail end head. To achieve the purpose of reducing impact and reducing the damage of the vehicle and the personnel in the vehicle. When there is a drainage ditch on the roadside, if the guardrail is extended at a certain rate, the stand may fall into the ditch range. The current common treatment method is to directly cross the drainage ditch, but this method may cause the guardrail protection ability to decrease, the extension length to be insufficient, and the risk of vehicle running off the road, guardrail plate piercing the vehicle to increase.

[0003] Figure 1 It is a structural principle diagram of the extended cross edge ditch guardrail; Figure 2 It is Figure 1 The three-dimensional structural principle diagram of the reinforcing extension structure; as shown in Figure 1 and Figure 2 The technical scheme of Chinese patent CN221193112U designed by the inventor team provides an extended cross edge ditch guardrail, which comprises a stand, a reinforcing extension structure, an extended guardrail plate and a protective beam; the stand is arranged on the outside of the edge ditch; the reinforcing extension structure is arranged on the stand and extends along the inside direction of the edge ditch; the extended guardrail plate and the protective beam are both arranged on the reinforcing extension structure, and the protective beam is arranged below the extended guardrail plate. In the technical scheme, the reinforcing extension structure arranged between the stand and the extended guardrail plate can connect the stand and the guardrail plate while effectively extending the distance between the stand and the guardrail plate to meet the requirement of extending at a certain rate while crossing the edge ditch; in addition, the reinforcing extension structure can ensure the stability and strength of the connection between the stand and the extended guardrail plate while crossing the edge ditch, avoid piling in the edge ditch, and improve the protection ability of the extended edge ditch guardrail and the buffering effect in the impact process.

[0004] In the process of implementing the technical scheme of the above-mentioned Chinese patent CN221193112U, since the regular hexagonal prism-shaped energy-absorbing block is directly connected with the extended guardrail plate through bolts, the connection surface of the regular hexagonal prism-shaped energy-absorbing block and the extended guardrail plate cannot be well attached to the extended guardrail plate during installation. On the one hand, it will affect the overall appearance of the assembled extended guardrail plate, and on the other hand, if it cannot be closely attached, it will cause the energy-absorbing efficiency to decrease. TECHNICAL PROBLEM

[0005] The utility model provides a highway ditch crossing guardrail device to reduce or avoid the problem mentioned in the front.

[0006] To solve the above technical problem, the utility model provides a highway ditch crossing guardrail device, which comprises a plurality of round pipe columns arranged outside ditches beside highways, a reinforcing extension structure assembled on the round pipe columns, the reinforcing extension structure being connected with an outer expansion guardrail plate, the reinforcing extension structure comprising a sleeve, a support beam and a hexagonal energy-absorbing block connected in sequence, and the energy-absorbing block being provided with a connecting plate on one side connected with the outer expansion guardrail plate.

[0007] Preferably, the width W of the connecting plate in the radial direction of the energy-absorbing block is at least three times the side length a of the hexagonal shape of the energy-absorbing block, and the length L of the connecting plate in the axial direction of the energy-absorbing block is not less than the height H of the hexagonal shape of the energy-absorbing block.

[0008] Preferably, the connecting plate is a rectangular steel plate welded on the energy-absorbing block.

[0009] Preferably, the connecting plate is a shape-retaining plate matched with the outer expansion guardrail plate to be connected and welded on the energy-absorbing block.

[0010] Preferably, the connecting plate is obtained by cutting a commercially available two-wave beam or three-wave beam finished product and processing screw holes for connection.

[0011] Preferably, the width W of the connecting plate in the radial direction of the energy-absorbing block is four times the side length a of the hexagonal shape of the energy-absorbing block, and the width W1 of the part of the connecting plate exceeding the energy-absorbing block in the direction toward the end of the outer expansion guardrail plate is twice the side length a of the hexagonal shape of the energy-absorbing block.

[0012] Preferably, a reinforcing rib plate is further arranged between the support beam and the sleeve and the energy-absorbing block.

[0013] Preferably, when the sleeve is sleeved on the round pipe column, the sleeve can cover the middle and lower parts of the round pipe column, and an inclined support beam is arranged directly below the support beam to connect the lower part of the energy-absorbing block and the sleeve.

[0014] The highway ditch crossing guardrail device provided by the utility model adopts the connecting plate structure, guarantees the adhesion of the energy-absorbing block and the outer expansion guardrail, makes the assembly of the outer expansion guardrail plate overall beautiful, and can improve the protection and energy-absorbing efficiency of the overall guardrail structure. BRIEF DESCRIPTION OF DRAWINGS

[0015] The following drawings are merely intended to schematically illustrate and explain the present application, and do not limit the scope of the present application. Among them,

[0016] Figure 1 It is a structural principle schematic view of an outreach cross-ditch guardrail;

[0017] Figure 2 It is a structural principle schematic view of an outreach cross-ditch guardrail; Figure 1

[0018] Figure 3 It is a structural principle schematic view of a highway cross-ditch guardrail device according to one embodiment of the present application;

[0019] Figure 4 It is a structural principle schematic view of a highway cross-ditch guardrail device according to one embodiment of the present application; Figure 3

[0020] Figure 5 It is a structural principle schematic view of a highway cross-ditch guardrail device according to one embodiment of the present application; Figure 3 DETAILED DESCRIPTION

[0021] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific embodiments of the present application will be described with reference to the drawings. Among them, the same components use the same reference numerals.

[0022] Figure 3 It is a structural principle schematic view of a highway cross-ditch guardrail device according to one embodiment of the present application; see Figure 3 The present application provides a highway cross-ditch guardrail device, which comprises a plurality of round pipe columns (not shown in the figure) arranged outside the ditch and trench beside the highway, a reinforcing extension structure 1 assembled on the round pipe column, the reinforcing extension structure 1 is connected with an outreach guardrail plate (not shown in the figure), the reinforcing extension structure 1 comprises a sleeve 11, a support beam 12 and a hexagonal energy-absorbing block 13 connected in sequence, and the energy-absorbing block 13 is provided with a connecting plate 14 on the side connected with the outreach guardrail plate.

[0023] As described in the background section, the present application is an improvement on the prior technical solution of the inventor's team, i.e. the technical solution of Chinese patent CN221193112U. The problem to be solved is that the connecting surface of the regular hexagonal energy-absorbing block and the outreach guardrail plate cannot be well attached to the outreach guardrail plate in the original technical solution, so that the energy-absorbing efficiency is not high during the energy-absorbing process, and the appearance is not good enough.

[0024] ​​​Specifically, the technical scheme of the present application increases the connecting area with the outrigger guardrail plate by arranging a connecting plate 14 on the side of the energy-absorbing block 13 connected with the outrigger guardrail plate, so that the deformation transmitted from the outrigger guardrail plate can be better transmitted to the energy-absorbing block 13 through the connecting plate 14 during the vehicle collision process. In addition, the sleeve 11 in the form of a pipe can adjust the rotation angle of the energy-absorbing block 13 more accurately, so that the connecting plate 14 can better fit the outrigger guardrail plate according to the slope of the outrigger guardrail plate.

[0025] The connecting plate 14 and the outrigger guardrail plate are connected by bolts. The connecting plate 14 can be a rectangular steel plate welded on the energy-absorbing block 13, the width W of the connecting plate 14 in the radial direction of the energy-absorbing block 13 is at least three times the side length a of the hexagonal prism of the energy-absorbing block 13, and the length L of the connecting plate 14 in the axial direction of the energy-absorbing block 13 is not less than the height H of the hexagonal prism of the energy-absorbing block 13, so as to ensure that the connecting plate 14 and the outrigger guardrail plate have sufficient connecting area and facilitate the arrangement of bolt holes for connecting with the outrigger guardrail plate.

[0026] The support beam 12 can also be made of a circular pipe, and the support beam 12 is further provided with a reinforcing rib plate 121 between the sleeve 11 and the energy-absorbing block 13, so as to ensure sufficient structural strength.

[0027] Figure 4 For Figure 3 A three-dimensional structural principle schematic diagram of a highway ditch-crossing barrier device according to an improved embodiment based on the above; Figure 4As shown, for the reinforcing extension structure 1 connecting the wave-shaped beam (not shown in the figure) at the end of the outreach guardrail plate and the end head (not shown in the figure), the length of the sleeve 11' can be lengthened so that when the sleeve 11' is sleeved on the round pipe column, it can cover the middle and lower part of the round pipe column, and on the one hand, an inclined support beam 122 can be added below the support beam 12 to connect the energy-absorbing block 13 and the lower part of the sleeve 11', which can also mean that the middle and lower part of the round pipe column is connected, and a triangular support structure can be formed as a whole, which can enhance the supporting force of the round pipe column on the energy-absorbing block 13. On the other hand, the width of the connecting plate 14' can be increased, for example, the width W of the connecting plate 14' in the radial direction of the energy-absorbing block 13 is four times the length a of the hexagonal prism of the energy-absorbing block 13, and then the width W1 of the part of the connecting plate 14' beyond the energy-absorbing block 13 in the direction towards the end of the outreach guardrail plate is twice the length a of the hexagonal prism of the energy-absorbing block 13, so that during assembly, the extended part of the connecting plate 14' structure can directly contact and support the arc-shaped end head (not shown in the figure) assembled at the end of the outreach guardrail plate, thereby assisting in supporting the arc-shaped end head in the assembly direction of the outreach guardrail plate, and thus enhancing the energy-absorbing effect on vehicles that may directly hit the arc-shaped end head.

[0028] Figure 5 For Figure 3 Another improved embodiment of a three-dimensional structure principle diagram of a highway crossing ditch and trench guardrail device. Referring to Figure 5 As shown, in order to better ensure the fit of the outreach guardrail plate (two-wave beam or three-wave beam), the connecting plate 14'' can be a shaped plate welded to the energy-absorbing block 13 that matches the outreach guardrail plate to be connected, that is, the connecting plate 14'' can be obtained by cutting the existing two-wave beam or three-wave beam finished product and processing screw holes for connection.

[0029] The highway crossing ditch and trench guardrail device provided by the utility model, by adopting the connecting plate structure, ensures the fit of the energy-absorbing block and the outreach guardrail, so that the assembly of the outreach guardrail plate is overall beautiful, and the protection and energy-absorbing efficiency of the overall guardrail structure can be improved.

[0030] Those skilled in the art should understand that although the utility model is described in the form of multiple embodiments, not every embodiment contains only one independent technical solution. The description is only for the sake of clarity, those skilled in the art should understand the description as a whole and understand the technical solutions involved in each embodiment as a way of combining different embodiments to understand the protection scope of the utility model.

[0031] The above merely illustrates the specific implementation of the present application, and is not intended to limit the scope of the present application. Any equivalent changes, modifications and combinations made by any person skilled in the art without departing from the concept and principles of the present application shall fall within the scope of the present application.

Claims

1. A highway ditch guardrail device, comprising a plurality of circular tube columns arranged outside a ditch beside the highway, a reinforcement extension structure mounted on the circular tube columns, the reinforcement extension structure being connected to an outward-facing guardrail plate, the reinforcement extension structure comprising a sleeve, a support beam, and a hexagonal energy-absorbing block connected in sequence, characterized in that: The energy-absorbing block is provided with a connecting plate on the side connected with the outrigger guard plate.

2. The highway median barrier of claim 1, wherein, The width W of the connecting plate in the radial direction of the energy-absorbing block is at least three times the side length a of the hexagonal prism of the energy-absorbing block, and the length L of the connecting plate in the axial direction of the energy-absorbing block is not less than the height H of the hexagonal prism of the energy-absorbing block.

3. The highway median barrier of claim 2, wherein, The connecting plate is a rectangular steel plate welded to the energy-absorbing block.

4. The highway median barrier of claim 2, wherein, The connecting plate is a shape-retaining plate matching the outrigger guard plate to be connected, welded to the energy-absorbing block.

5. The highway median barrier of claim 3, wherein, The connecting plate is obtained by cutting a commercially available two-wave beam or three-wave beam finished product and processing screw holes for connection.

6. The highway median barrier of claim 2, wherein The width W of the connecting plate in the radial direction of the energy-absorbing block is four times the side length a of the hexagonal prism of the energy-absorbing block, and the width W1 of the part of the connecting plate beyond the energy-absorbing block in the direction towards the end of the outrigger guard plate is twice the side length a of the hexagonal prism of the energy-absorbing block.

7. The highway median barrier of claim 1, wherein A reinforcing rib plate is further arranged between the support beam and the sleeve and the energy-absorbing block.

8. The highway median barrier of claim 1, wherein, When the sleeve is sleeved on the round pipe column, it can cover the middle and lower parts of the round pipe column, and an inclined support beam is arranged directly below the support beam to connect the lower part of the energy-absorbing block and the sleeve.

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