Precast crash barriers and precast crash barrier systems

Abstract

This utility model relates to the field of traffic facility technology and discloses a prefabricated crash barrier and a prefabricated crash barrier system, including: a base, connecting ribs, crash barrier pipes, and column kits; the base has an upward-facing connecting groove, the crash barrier pipe has a pre-embedded section and a sleeve section connected in the vertical direction, the pre-embedded section is disposed in the connecting groove, and the outer peripheral wall of the pre-embedded section and the groove wall of the connecting groove form a first receiving cavity for filling cement mortar, the connecting ribs pass through the groove wall of the connecting groove to connect the base and the pre-embedded section, the sleeve section passes through the groove opening of the connecting groove and protrudes upward relative to the base, and the column kits are sleeved on the sleeve section. This utility model occupies less space, has a simple and beautiful appearance, and is suitable for urban safety protection.

Description

Technical Field

[0001] This utility model relates to the field of traffic facility technology, and in particular to a prefabricated anti-collision barrier and a prefabricated anti-collision barrier system. Background Technology

[0002] Currently, commonly used crash barriers on the market mainly include crash barriers, stone piers (or concrete piers), barricades, vehicle bollards, and rising bollards. Among them, crash barriers are usually made of concrete or metal corrugated guardrails. Although they have excellent crash protection performance, they are large in size and have poor aesthetic appeal. Stone piers and barricades are movable crash barriers. Although they are easy to adjust and arrange, they are not fixed and are prone to rolling or tipping over upon impact, causing secondary injuries. Vehicle bollards are usually made of concrete or metal and have a small cross-section. Although they have a good aesthetic appeal, their crash protection function is weak and cannot effectively resist vehicle impacts. Rising bollards are more flexible and aesthetically pleasing, but their complex construction and high cost make them unsuitable for large-scale use.

[0003] In summary, existing crash barriers have varying degrees of shortcomings in terms of crashworthiness, aesthetics, ease of construction, and safety. These problems not only affect the effectiveness of urban public safety but also hinder the aesthetic appeal of the urban environment. Therefore, there is an urgent need to design a new type of crash barrier to overcome the deficiencies of existing technologies. Utility Model Content

[0004] The purpose of this utility model is to design a prefabricated anti-collision barrier that takes into account both urban safety and aesthetics.

[0005] To achieve the above objectives, this utility model provides a prefabricated anti-collision barrier, comprising: a base, connecting ribs, anti-collision pipes, and column assembly;

[0006] The base has an upward-facing connecting groove. The anti-collision pipe has a pre-embedded section and a sleeve section connected in the vertical direction. The pre-embedded section is located in the connecting groove, and the outer peripheral wall of the pre-embedded section and the groove wall of the connecting groove form a first receiving cavity for filling cement mortar. The connecting bar passes through the groove wall of the connecting groove to connect the base and the pre-embedded section. The sleeve section passes through the groove of the connecting groove and protrudes upward relative to the base. The column kit is sleeved on the sleeve section.

[0007] Furthermore, the connecting rib includes a first connecting segment and a second connecting segment connected in sequence. The first connecting segment extends along the extension direction of the anti-collision pipe and is attached to the outer peripheral wall of the anti-collision pipe. The second connecting segment passes through the groove wall and is set at an angle to the first connecting segment.

[0008] Furthermore, it also includes structural reinforcement bars, which are embedded in the base and arranged in a mesh-like pattern around the connecting groove.

[0009] Furthermore, the connecting bar is connected to the structural bar.

[0010] Furthermore, the anti-collision tube is a hollow tube that extends through its extension direction.

[0011] Furthermore, the diameter of the anti-collision pipe is R mm, its wall thickness is T mm, its length is L mm, and the length of the pre-embedded section is H mm; satisfying: 1 / 3L≤H≤1 / 2L, R=80mm~120mm, T≥12mm, L=8050mm~1250mm.

[0012] Furthermore, the column assembly includes a column sleeve and a cap. The column sleeve is fitted onto the sleeve section, and the inner peripheral wall of the column sleeve and the outer peripheral wall of the sleeve section enclose a second receiving cavity for filling cement mortar. The top of the column sleeve has a grouting port communicating with the second receiving cavity, and the cap is placed over the grouting port.

[0013] Furthermore, a lifting ring is protruding from the upper surface of the base.

[0014] This application also provides a crash barrier system, including the aforementioned prefabricated crash barriers, wherein the interval between two adjacent prefabricated crash barriers is 1.5 to 2.5 meters.

[0015] Furthermore, the upper surface of the base is covered with a road surface layer, and the lifting ring is located within the road surface layer.

[0016] Compared with the prior art, the advantages of this utility model embodiment of a prefabricated anti-collision barrier and prefabricated anti-collision barrier system are as follows:

[0017] The prefabricated anti-collision barrier and prefabricated anti-collision barrier system of this utility model adopts a three-part combination structure of base, anti-collision pipe and column kit, which allows the column kit to flexibly change its external shape according to the landscape needs, and is connected to the base through the anti-collision pipe. While ensuring good anti-collision performance, it also has a good landscape effect and is easy to construct and install quickly to meet the needs of urban safety protection. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural schematic diagram of the prefabricated anti-collision isolation pier according to an embodiment of this utility model;

[0019] Figure 2 yes Figure 1 Cross-sectional view of AA.

[0020] In the diagram, 1 is the base; 11 is the connecting groove; 2 is the connecting reinforcement; 21 is the first connecting section; 22 is the second connecting section; 3 is the anti-collision pipe; 31 is the embedded section; 32 is the sleeve section; 4 is the column kit; 41 is the column sleeve; 411 is the grouting port; 42 is the pipe cap; 5 is the first receiving cavity; 6 is the structural reinforcement; 7 is the second receiving cavity; 8 is the lifting ring; and 9 is the road surface layer. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should be understood that the terms "connected," "linked," and "fixed," etc., used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a welded connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this invention, terms such as "first" and "second" are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0025] Reference Figure 1 and Figure 2 A prefabricated anti-collision isolation pier according to an embodiment of the present utility model includes: a base 1, a connecting rib 2, an anti-collision pipe 3, and a column assembly 4;

[0026] The base 1 has an upward-facing connecting groove 11. The anti-collision pipe 3 has a pre-embedded section 31 and a sleeve section 32 connected in the vertical direction. The pre-embedded section 31 is located in the connecting groove 11, and the outer peripheral wall of the pre-embedded section 31 and the groove wall of the connecting groove 11 form a first receiving cavity 5 for filling cement mortar. The connecting rib 2 passes through the groove wall of the connecting groove 11 to connect the base 1 and the pre-embedded section 31. The sleeve section 32 passes through the groove of the connecting groove 11 and protrudes upward relative to the base 1. The column kit 4 is sleeved on the sleeve section 32.

[0027] The separate design of the column assembly 4 and the anti-collision pipe 3 allows the shape design of the column assembly 4 to be more flexible without being restricted by anti-collision requirements. It also allows it to be consistent with the shape and color of commonly used isolation piers in this area, so as to coordinate with the surrounding environment and ensure a simple and beautiful appearance.

[0028] In some improvements of this application, the connecting rib 2 includes a first connecting segment 21 and a second connecting segment 22 connected in sequence. The first connecting segment 21 extends along the extension direction of the anti-collision pipe 3 and is attached to the outer peripheral wall of the anti-collision pipe 3. The second connecting segment 22 passes through the groove wall and is set at an angle with the first connecting segment 21.

[0029] In some improvements of this application, a structural reinforcement 6 is also included. The structural reinforcement 6 is embedded in the base 1 and is arranged in a mesh around the connecting groove 11 to enhance the structural strength of the base 1.

[0030] In some improvements of this application, the connecting rib 2 is connected to the structural rib 6 to ensure the connection between the anti-collision pipe 3 and the base 1.

[0031] In some improvements of this application, the column assembly 4 includes a column sleeve 41 and a cap 42. The column sleeve 41 is fitted onto the sleeve section 32, and the inner peripheral wall of the column sleeve 41 and the outer peripheral wall of the sleeve section 32 enclose a second receiving cavity 7 for filling with cement mortar. The top of the column sleeve 41 has a grouting port 411 communicating with the second receiving cavity 7, and the cap 42 covers the grouting port 411. After the column sleeve 41 is fitted onto the anti-collision pipe 3, it is connected to the upper surface of the base 1. The grouting port 411 is used to fill the second receiving cavity 7 with cement mortar. The cap 42 and the column sleeve can be connected by threads.

[0032] In some improvements of this application, the anti-collision pipe 3 is a hollow pipe extending along its extension direction. The upper end of the hollow pipe is connected to the second receiving cavity 7, and the lower end of the hollow pipe is connected to the first receiving cavity 5. This facilitates the simultaneous pouring of cement mortar inside the anti-collision pipe 3, which provides a certain buffering effect and helps to strengthen the connection between the anti-collision pipe 3 and the column kit 4, and between the anti-collision pipe 3 and the base 1.

[0033] In some improvements of this application, the diameter of the anti-collision pipe 3 is R mm, its wall thickness is T mm, its length is L mm, and the length of the pre-embedded section 31 is H mm; satisfying: 1 / 3L≤H≤1 / 2L, R=80mm~120mm, T≥12mm, L=8050mm~1250mm.

[0034] In some improvements of this application, a lifting ring 8 is provided on the upper surface of the base 1.

[0035] A crash barrier system includes the aforementioned prefabricated crash barriers, wherein the interval between two adjacent prefabricated crash barriers is 1.5 to 2.5 meters.

[0036] In some improvements of this application, a road surface layer 9 is laid on the upper surface of the base 1, and the lifting ring 8 is located within the road surface layer 9. The road surface layer 9 is laid to cover the lifting ring 8, preventing it from protruding from the road surface.

[0037] A specific embodiment of this application: A prefabricated anti-collision barrier includes: a base 1, structural reinforcement 6, connecting reinforcement 2, lifting ring 8, anti-collision pipe 3, column sleeve 41, and pipe cap 42; its installation and manufacturing process includes a factory prefabrication stage and an on-site installation stage, and the specific steps are as follows:

[0038] 1) Factory prefabricated base 1:

[0039] First, the base 1 is prefabricated in the factory. The length, width and height of the base 1 are 0.5m*0.5m*0.5m. A connecting groove 11 with the opening facing upward is opened in the middle of the base 1. The dimensions of the connecting groove 11 are 0.15m*0.15m*0.43m. The base 1 has a mesh-like structural reinforcement 6 inside, which surrounds the connecting groove 11. Since there is a positional conflict between the four steel bars in the middle of the structural reinforcement 6 and the anti-collision pipe 3, in order to ensure a tight connection, the steel bars in the connecting groove 11 are bent downward to form a connecting reinforcement 2 for connecting with the anti-collision pipe 3. In order to facilitate the hoisting of the base 1, two lifting rings 8 are pre-embedded diagonally on the upper surface of the base 1.

[0040] 2) Factory prefabricated anti-collision pipe 3: The anti-collision pipe 3 has a diameter of 100mm, a wall thickness of 14mm, and is made of Q355 steel. It is hot-dip galvanized. The total length of the anti-collision pipe 3 is 1050mm, and the pre-embedded section 31 extending into the base 1 is 400mm. Among them, the anti-collision pipe 3 is the main anti-collision component. The specific size and thickness can be strengthened according to the actual application scenario and the impact resistance requirements.

[0041] 3) Factory prefabricated column kit 4: manufacture hollow column sleeves 41 and caps 42 made of cast iron or steel. The column sleeves 41 and caps 42 can be connected by a spiral. The diameter of the column sleeves 41 is 150mm. The overall height of the column sleeves 41 and caps 42 after installation is 750mm. As the main external components, the column sleeves 41 and caps 42 can be consistent with the shape and color of the cast iron isolation piers commonly used in the area to be installed, so as to ensure that the isolation pier has a simple and beautiful appearance and is coordinated with the surrounding environment.

[0042] 4) On-site installation: Set up a base 1 every 1.5 to 2.5m on site to allow pedestrians to pass and block vehicles; dig a trench on site and hoist the base 1 into place using lifting rings 8; place the pre-embedded section 31 of the anti-collision pipe 3 into the connecting groove 11 and weld the pre-embedded section 31 to the connecting bar 2; fill the first receiving cavity 5 with M10 cement mortar to make the base 1 and the anti-collision pipe 3 a whole; fasten the column sleeve 41 and fill the second receiving cavity 7 with M10 cement mortar through the grouting port 411 to make the cement mortar, column sleeve 41 and anti-collision pipe 3 form a whole composite section, which improves the strength; in addition, the cement mortar inside and outside the anti-collision pipe 3 also has a certain buffering effect on impact; cover the grouting port 411 with the pipe cap 42 and spirally connect it to the column sleeve 41; cover the surface of the completed base 1 with the road surface layer 9 as needed, so that it covers the lifting rings 8, and the arrangement of the anti-collision isolation block system is completed.

[0043] In summary, this utility model embodiment provides a prefabricated crash barrier, which adopts a fully prefabricated process, has a simple structure, is convenient to construct, and can be quickly installed and deployed. Furthermore, it uses the crash barrier pipe 3 as the core of the crash barrier and the column assembly 4 as the outer form, and the column assembly 4 and the crash barrier pipe 3 are connected by cement mortar to form an integral composite cross-section, possessing good and stable crash protection performance. The prefabricated crash barrier system of this application occupies less space, has a simple and aesthetically pleasing appearance, and does not obstruct pedestrian traffic.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A prefabricated crash barrier, characterized in that, include: Base, connecting ribs, anti-collision pipes and column kit; The base has an upward-facing connecting groove. The anti-collision pipe has a pre-embedded section and a sleeve section connected in the vertical direction. The pre-embedded section is located in the connecting groove, and the outer peripheral wall of the pre-embedded section and the groove wall of the connecting groove form a first receiving cavity for filling cement mortar. The connecting bar passes through the groove wall of the connecting groove to connect the base and the pre-embedded section. The sleeve section passes through the groove of the connecting groove and protrudes upward relative to the base. The column kit is sleeved on the sleeve section.

2. The prefabricated anti-collision barrier as described in claim 1, characterized in that, The connecting rib includes a first connecting segment and a second connecting segment connected in sequence. The first connecting segment extends along the extension direction of the anti-collision pipe and is attached to the outer peripheral wall of the anti-collision pipe. The second connecting segment passes through the groove wall and is set at an angle to the first connecting segment.

3. The prefabricated anti-collision barrier as described in claim 1, characterized in that, It also includes structural reinforcement bars, which are embedded in the base and arranged in a mesh pattern around the connecting groove.

4. The prefabricated anti-collision barrier as described in claim 3, characterized in that, The connecting bar is connected to the structural bar.

5. The prefabricated anti-collision barrier as described in claim 1, characterized in that, The anti-collision tube is a hollow tube that extends through its extension direction.

6. The prefabricated anti-collision barrier as described in claim 5, characterized in that, The diameter of the anti-collision pipe is R mm, its wall thickness is T mm, its length is L mm, and the length of the pre-embedded section is H mm; satisfying: 1 / 3L≤H≤1 / 2L, R=80mm~120mm, T≥12mm, L=8050mm~1250mm.

7. The prefabricated anti-collision barrier as described in claim 1, characterized in that, The column assembly includes a column sleeve and a cap. The column sleeve is fitted onto the sleeve section, and the inner peripheral wall of the column sleeve and the outer peripheral wall of the sleeve section enclose a second receiving cavity for filling cement mortar. The top of the column sleeve has a grouting port that communicates with the second receiving cavity, and the cap is placed over the grouting port.

8. The prefabricated crash barrier as described in any one of claims 1 to 7, characterized in that, The upper surface of the base is provided with a lifting ring.

9. A system of anti-collision barriers, characterized in that, It includes the prefabricated crash barriers as described in claim 8, wherein the interval between two adjacent prefabricated crash barriers is 1.5 to 2.5 m.

10. The anti-collision isolation barrier system as described in claim 9, characterized in that, The upper surface of the base is covered with a road surface layer, and the lifting ring is located within the road surface layer.

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