Rapidly assembled and disassembled road safety isolation guardrail and mounting method thereof

Abstract

The invention discloses a road safety isolation guardrail capable of being rapidly assembled and disassembled and an installation method thereof, the isolation guardrail comprises stand columns, bases, upper cross rods, lower cross rods, vertical rods and flexible connecting pieces, at least one fracture is formed between the upper cross rods between every two adjacent stand columns, and every two adjacent upper cross rods are connected at the fracture through the corresponding flexible connecting piece. The adjacent upper transverse rods are connected through the flexible connecting pieces, impact energy can be absorbed to a certain degree through deformation of the flexible connecting pieces when a vehicle collides, and the buffering effect is achieved. The guardrail structure has the function of preventing broken parts in the guardrail structure from flying out, the integrity of the isolation guardrail is effectively improved, and the situation that personnel and pedestrians in a vehicle are secondarily hurt during a traffic accident can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of urban road traffic isolation guardrails, and particularly to a road safety isolation guardrail that can be quickly assembled and disassembled and its installation method. Background Art

[0003] At present, most of the isolation guardrails used on urban roads are composed of columns, upper crossbars, lower crossbars and vertical bars. Among them, several columns are arranged and fixed on the ground at a certain interval, the upper and lower crossbars are arranged between adjacent columns, and several vertical bars are arranged between the upper and lower crossbars at a certain interval. All components are installed by plugging, or electric welding is additionally applied at the plugging positions. When a vehicle collides with such an isolation guardrail and continues to slide longitudinally along the guardrail, the impact causes the vertical bars near the impact point to fall off, while the vertical bars farther away from the impact point do not fall off. At this time, the upper and lower crossbars still keep in the same direction as the vehicle sliding direction in the initial stage of the collision. Under the impact force, the upper crossbar may slide onto the engine hood and pierce the front windshield, causing serious casualties. Therefore, improving road safety facilities, improving urban road isolation guardrails, and reducing the personal safety hazards and property losses caused after traffic accidents have become a hot topic in current traffic safety travel. Summary of the Invention

[0004] The present invention provides a road safety isolation guardrail that can be quickly assembled and disassembled and its installation method to solve the above technical problems in the prior art.

[0005] The technical solution adopted by the present invention is: in the first aspect, a road safety isolation guardrail that can be quickly assembled and disassembled is provided, including: columns, bases, upper crossbars, lower crossbars, vertical bars and flexible connectors. There is at least one break between the upper crossbars between two adjacent columns, and the adjacent two upper crossbars are connected through a flexible connector at the break.

[0006] Further, the flexible connector is a chain or a connecting rope.

[0007] Further, the upper crossbar is provided with a ring at the break, and the two ends of the flexible connector are fixed with buckles, and the two ends of the flexible connector are installed on the ring of the upper crossbar through the buckles.

[0008] Further, the column is plugged or welded on the base, or the column and the base are integrally formed.

[0009] Further, the upper crossbar and the lower crossbar are detachably installed on the column.

[0010] Further, a limiting plate A is provided at one end of the upper crossbar connected to the column; a limiting hole A matching with the limiting plate A is provided at the top of the column.

[0011] Further, it also includes a cap. The bottom of the cap is open, and U-shaped grooves B are provided on both side walls; the top of the column is open, and U-shaped grooves A are provided on both side walls at the top of the column; when the cap is buckled on the top of the column, U-shaped groove A and U-shaped groove B form the limiting hole A.

[0012] Further, a limiting hole B is provided at the lower part of the column; limiting plates B are provided at both ends of the lower cross bar; the limiting hole B and the limiting plate B are arranged such that when the limiting plate B at the end of the lower cross bar is inserted into the limiting hole B and rotated by a certain angle, the limiting plate B can be engaged in the limiting hole B.

[0013] Further, corresponding reserved holes are provided on the upper cross bar and the lower cross bar. The top end of the vertical bar is inserted into the reserved hole on the upper cross bar, and the bottom end of the vertical bar is inserted into the reserved hole on the lower cross bar.

[0014] In a second aspect, a method for installing a road safety isolation guardrail with quick assembly and disassembly is provided, including the following steps:

[0015] S1: Place the base on the ground and insert the column into the base to complete the connection between the column and the base;

[0016] S2: Pass the limiting plates B at both ends of the lower cross bar through the limiting holes B on the adjacent columns and rotate by 90°, to complete the connection between the lower cross bar and the columns;

[0017] S3: Insert the bottom ends of all the vertical bars into the reserved holes of the lower cross bar and fix them to complete the connection between the vertical bars and the lower cross bar;

[0018] S4: Place one end of the two upper cross bars with limiting plates A into the preset U-shaped grooves A on both side walls at the top of the column. At the same time, insert the top ends of the vertical bars into the corresponding reserved holes of the upper cross bar. After confirming the connection between the upper cross bar and the vertical bars, then install the cap with an open bottom and U-shaped grooves B on both side walls onto the top of the column to complete the connection between the upper cross bar and the column, and between the upper cross bar and the lower cross bar;

[0019] S5: Buckle the two ends of the flexible connector onto the rings at the break of the adjacent two upper cross bars to complete the connection between the adjacent upper cross bars, and finally complete the assembly of the isolation guardrail.

[0020] The beneficial effects of the present invention are as follows:

[0021] (1) In the present invention, the adjacent upper cross bars are connected by a flexible connector. When the vehicle impacts, the impact energy can be absorbed to a certain extent through the deformation of the flexible connector, achieving a buffering effect.

[0022] (2) The present invention has the function of preventing the broken parts in the guardrail structure from flying out, effectively improving the integrity of the isolation guardrail, and being able to avoid the situation of secondary injuries to the vehicle occupants and pedestrians in case of a car accident.

[0023] (3) By changing the structure of the upper crossbar and appropriately reducing its stiffness, the present invention can, to a certain extent, prevent the upper crossbar from being inserted into the cab along the vehicle engine hood, effectively reducing the possibility of secondary injuries caused by the vehicle hitting the guardrail and providing guarantee for safe traffic travel.

[0024] (4) The present invention has the advantages of detachable guardrail structure, replaceable components, quick recoverability of the isolation function, good integrity, and strong anti-dropping ability of components. When the guardrail structure is impacted, damaged components can be quickly replaced according to the actual situation to achieve the quick recovery of the guardrail structure function and the low-cost maintenance of traffic safety facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the assembly schematic diagram of the road safety isolation guardrail disclosed by the present invention;

[0026] Figure 2 is the structural schematic diagram of the road safety isolation guardrail disclosed by the present invention;

[0027] Figure 3 is Figure 2 the sectional view taken along A-A in

[0028] Figure 4 is Figure 2 the sectional view taken along B-B in

[0029] Figure 5 is the structural schematic diagram of the column and the base disclosed by the present invention;

[0030] Figure 6 is the structural schematic diagram of the cap disclosed by the present invention;

[0031] Figure 7 is the structural schematic diagram of the upper crossbar disclosed by the present invention;

[0032] Figure 8 is the structural schematic diagram of the lower crossbar disclosed by the present invention;

[0033] Figure 9 is the structural schematic diagram of the road safety isolation guardrail according to another embodiment disclosed by the present invention.

[0034] Reference numerals: 1-column, 11-U-shaped groove A, 12-limit hole B, 2-base, 3-cap, 31-U-shaped groove B, 32-limit hole A, 4-upper crossbar, 41-upper crossbar body, 42-round ring, 43-limit plate A, 5-lower crossbar, 51-lower crossbar body, 52-limit plate B, 6-vertical bar, 7-flexible connector, 8-fracture. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. However, the implementation manners of the present invention are not limited thereto. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.

[0036] In the present invention, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit that the indicated devices, elements, or components must have a specific orientation, or be constructed and operated in a specific orientation.

[0037] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the terms "install", "set", "provide with", "connect", "link" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Embodiment 1:

[0040] Refer to Figure 1 , this embodiment discloses a road safety isolation guardrail for quick assembly and disassembly, including: a column 1, a base 2, an upper crossbar 4, a lower crossbar 5, a vertical bar 6, and a flexible connecting member 7. There is at least one break 8 between the upper crossbars 4 between two adjacent columns 1, and the adjacent two upper crossbars 4 are connected by a flexible connecting member 7 at the break 8.

[0041] Specifically, refer to Figure 1, in this embodiment, two upper crossbars 4 are arranged between two adjacent columns 1, and thus a break 8 is formed between the two upper crossbars 4. It is easy to understand that multiple upper crossbars 4 can also be arranged between two adjacent columns 1, and thus there are more than two breaks 8. In some other embodiments, refer to Figure 9 , a through hole is arranged at the top of the column 1, and the upper crossbar 4 is inserted into the through hole in the column 1, and a break 8 is formed between the two upper crossbars 4.

[0042] Specifically, the flexible connecting member 7 is a chain or a connecting rope. The chain is preferably an aluminum alloy chain, and the connecting rope is preferably a nylon rope.

[0043] Specifically, refer to Figure 7 , the upper crossbar 4 includes an upper crossbar body 41, a limiting plate A43 and a ring 42, and the limiting plate A43 and the ring 42 are respectively arranged at both ends of the upper crossbar body 41. Refer to Figure 8 , the lower crossbar 5 includes a lower crossbar body 51 and a limiting plate B52, and the two limiting plates B52 are respectively arranged at both ends of a lower crossbar body 51.

[0044] Specifically, the ring 42 is located at the break 8 of the upper crossbar 4, and buckles are fixed at both ends of the flexible connecting member 7, and both ends of the flexible connecting member 7 are installed on the ring 42 of the upper crossbar 4 through the buckles. There are many structures of the buckles, and the structure of the buckles is not specifically limited in this embodiment. The buckles can be selected from stainless steel buckles, safety buckles, climbing buckles, lock buckles, etc.

[0045] Specifically, the column 1 is inserted or welded on the base 2, or the column 1 and the base 2 are integrally formed. The column 1 and the base 2 are preferably connected by insertion, which is convenient for installation, disassembly and transportation.

[0046] Specifically, the upper crossbar 4 and the lower crossbar 5 are detachably installed on the column 1. There are many ways of detachable installation. The following detachable ways are disclosed in this embodiment: Refer to Figure 2 , one end of the upper crossbar 4 connected to the column 1 is the limiting plate A43; a limiting hole A32 matching with the limiting plate A43 is arranged at the top end of the column 1. Specifically, refer to Figures 3 - 6, a cap 3 is also detachably provided at the top of the vertical column 1. The bottom of the cap 3 is open, and U-shaped grooves B31 are provided on both side walls; the top of the vertical column 1 is open, and U-shaped grooves A11 are provided on both side walls at the top of the vertical column 1; when the cap 3 is buckled on the top of the vertical column 1, the U-shaped groove A11 and the U-shaped groove B31 form the limiting hole A32. The shape of the limiting hole A32 can be circular, square, etc., specifically determined according to the shape of the upper crossbar rod body 41. In this embodiment, the limiting hole A32 is circular. A limiting hole B12 is provided at the lower part of the vertical column 1; limiting plates B52 are provided at both ends of the lower crossbar 5; the limiting hole B12 and the limiting plates B52 are arranged such that when the limiting plates B52 at both ends of the lower crossbar 5 are inserted into the limiting hole B12 and rotated by a certain angle, the limiting plates B52 can be clamped in the limiting hole B12.

[0047] Specifically, the shape of the limiting hole B12 can be as Figure 5 shown, with a circular hole in the middle and strip-shaped holes above and below, and the circular hole communicates with the strip-shaped holes above and below. Correspondingly, the lower crossbar rod body 51 is circular, the limiting plates B52 are steel bars welded to both ends of the lower crossbar rod body 51, the shape of the limiting plates B52 is the same as that of the limiting hole B12, and the size of the limiting plates B52 is slightly smaller than that of the limiting hole B12. When the limiting plates B52 are inserted into the limiting hole B12 and rotated by 90°, the end of the lower crossbar 5 is clamped on the vertical column 1.

[0048] Corresponding reserved holes are provided on the upper crossbar 4 and the lower crossbar 5. The top end of the vertical rod 6 is inserted into the reserved hole on the upper crossbar 4, and the bottom end of the vertical rod 6 is inserted into the reserved hole on the lower crossbar 5.

[0049] Specifically, the vertical column 1, the base 2, the cap 3, the upper crossbar 4, the lower crossbar 5, the vertical rod 6 and the flexible connector 7 can all be manufactured in the factory and then transported to the construction section for assembly. The vertical column 1, the upper crossbar 4, the lower crossbar 5 and the vertical rod 6 are all hot-dip galvanized thin-walled steel pipes treated by electrostatic spraying, or plastic materials can also be used. The base 2 can be a cast iron base 2 or a polymer composite base 2, etc. according to the situation. The upper crossbar rod body 41 and the lower crossbar rod body 51 are preferably hollow round tubes of the same size.

[0050] Embodiment 2:

[0051] This embodiment discloses an installation method for a road safety isolation guardrail with quick assembly and disassembly, including the following steps:

[0052] S1: Place the base 2 on the ground and insert the vertical column 1 into the base 2 to complete the connection between the vertical column 1 and the base 2;

[0053] S2: Pass the limiting plates B52 at both ends of the lower crossbar 5 through the limiting holes B12 on the adjacent vertical columns 1 and rotate by 90° to complete the connection between the lower crossbar 5 and the vertical columns 1;

[0054] S3: Insert the bottoms of all the vertical rods 6 into the reserved holes of the lower crossbar 5 and fix them to complete the connection between the vertical rods 6 and the lower crossbar 5.

[0055] S4: Place the ends of the two upper crossbars 4 with the limit plates A43 on both sides of the top of the column 1 into the preset U-shaped grooves A11 on both side walls. At the same time, insert the tops of the vertical rods 6 into the corresponding reserved holes of the upper crossbars 4. After confirming the connection between the upper crossbars 4 and the vertical rods 6, install the cap 3 with an open bottom and U-shaped grooves B31 on both side walls on the top of the column 1 to complete the connection between the upper crossbars 4 and the column 1, and between the upper crossbars 4 and the lower crossbar 5.

[0056] S5: Buckle the two ends of the flexible connector 7 onto the rings 42 at the break points 8 of two adjacent upper crossbars 4 to complete the connection between the adjacent upper crossbars 4, and finally complete the assembly of the isolation guardrail.

[0057] S6: Check the connection of each component. After adjusting the position, it can be decided whether to use spikes to connect the isolation guardrail to the ground according to the actual situation to complete the connection between the isolation guardrail and the ground.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A road safety isolation guardrail for quick assembly and disassembly, comprising: Vertical columns, bases, upper crossbars, lower crossbars, and vertical rods, characterized in that it further includes a flexible connector. There is at least one break between the upper crossbars of two adjacent vertical columns, and the adjacent upper crossbars are connected by the flexible connector at the break.

2. The quickly assembled and disassembled road safety isolation guardrail according to claim 1, characterized in that, The flexible connector is a chain or a connecting rope.

3. The quickly assembled and disassembled road safety isolation guardrail according to claim 1, characterized in that, The upper crossbar is provided with a ring at the break. Clasps are fixed at both ends of the flexible connector, and both ends of the flexible connector are installed on the ring of the upper crossbar through the clasps.

4. The quickly assembled and disassembled road safety isolation guardrail according to claim 1, characterized in that, The vertical column is inserted or welded on the base, or the vertical column and the base are integrally formed.

5. The quick-assembly and disassembly road safety isolation guardrail according to claim 1, characterized in that, The upper crossbar and the lower crossbar are detachably installed on the vertical column.

6. The quickly assembled and disassembled road safety isolation guardrail according to claim 5, characterized in that, A limiting plate A is provided at one end of the upper crossbar connected to the vertical column; a limiting hole A is provided at the top of the vertical column and is matched with the limiting plate A.

7. The quickly assembled and disassembled road safety isolation guardrail according to claim 6, wherein, It further includes a cap. The bottom of the cap is open, and U-shaped grooves B are provided on both side walls; the top of the vertical column is open, and U-shaped grooves A are provided on both side walls of the top of the vertical column; when the cap is buckled on the top of the vertical column, the U-shaped groove A and the U-shaped groove B form the limiting hole A.

8. The quickly assembled and disassembled road safety isolation guardrail according to claim 5, characterized in that, A limiting hole B is provided at the lower part of the vertical column; limiting plates B are provided at both ends of the lower crossbar; the limiting hole B and the limiting plate B are arranged such that the limiting plate B at the lower crossbar is inserted into the limiting hole B and rotated by a certain angle, enabling the limiting plate B to be clamped in the limiting hole B.

9. The quickly assembled and disassembled road safety isolation guardrail according to claim 1, characterized in that, Reserved holes with corresponding positions are provided on the upper crossbar and the lower crossbar. The top end of the vertical rod is inserted into the reserved hole on the upper crossbar, and the bottom end of the vertical rod is inserted into the reserved hole on the lower crossbar.

10. An installation method for a road safety isolation guardrail that can be quickly assembled and disassembled, characterized in that, It includes the following steps: S1: Place the base on the ground, insert the vertical column into the base, and complete the connection between the vertical column and the base. S2: Pass the limiting plates B at both ends of the lower crossbar through the limiting holes B on the adjacent vertical columns and rotate 90°, and complete the connection between the lower crossbar and the vertical column. S3: Insert the bottom ends of all the vertical rods into the reserved holes of the lower crossbar and fix them to complete the connection between the vertical rods and the lower crossbar. S4: Place one end of the two upper crossbars with the limiting plate A into the preset U-shaped grooves A on both side walls of the top of the vertical column. At the same time, insert the top end of the vertical rod into the corresponding reserved hole of the upper crossbar. After confirming that the upper crossbar and the vertical rod are connected, then install the cap with an open bottom and U-shaped grooves B on both side walls on the top of the vertical column to complete the connection between the upper crossbar and the vertical column, and between the upper crossbar and the lower crossbar. S5: Buckle the clasps at both ends of the flexible connector into the rings at the breaks of the adjacent upper crossbars to complete the connection of the adjacent upper crossbars, and finally complete the assembly of the isolation guardrail.

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