Expressway anti-collision guardrail

Abstract

The utility model relates to the technical field of expressway guardrails, in particular to an expressway anti-collision guardrail which comprises a fixed stand column, a movable stand column and an anti-collision device. The wave-shaped beam plates are continuously arranged along the edge of the road and are parallel to the fixed stand columns; and the horizontal connecting beam stretches across the corrugated beam plate and the fixed stand column, one end of the horizontal connecting beam is rotationally connected with the corrugated beam plate through a rotary connecting sleeve, and the other end of the horizontal connecting beam is rotationally connected with the fixed stand column through a buffer connecting sleeve. Through the arrangement of the rotary connecting sleeve and the buffer connecting sleeve, the wave-shaped beam plate can generate plastic deformation to absorb energy during collision and can also translate towards one side of the fixed stand column, and the translating motion drives the buffer connecting sleeve to rotate around the fixed stand column, so that the fixed limiting block sequentially collides with the limiting buffer plates; therefore, the energy absorption capability of the whole system is greatly enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to expressway guardrail technical field especially relates to an expressway crash barrier. BACKGROUND

[0002] Expressway crash barrier is a traffic safety facility, mainly used for absorbing the energy when the vehicle collides, preventing the vehicle from rushing out of the road or crossing the central separation zone into the opposite lane, so as to reduce the severity of traffic accidents, the design and installation of the crash barrier need to follow strict engineering standards to ensure that it can work effectively in different types of collisions, in the design of the existing expressway crash barrier, the corrugated beam guardrail is widely used because of its cost-effectiveness, convenient installation and good energy absorption capacity, the traditional corrugated beam guardrail structure mainly relies on the plastic deformation of the corrugated beam plate to absorb the collision energy, the feature of this structure is that the overall deformation collapse area is relatively limited.

[0003] However, with the global automotive industry transforming to electrification, the market share of electric vehicles is rising year by year. Compared with traditional fuel vehicles, electric vehicles have significantly increased vehicle mass due to the heavy power battery pack. The overall deformation collapse structure and area of the current expressway crash barrier is less, and the collision energy that can be absorbed is low. In the face of modern vehicles running at high speed and having large weight, especially electric vehicles, the crash barrier cannot effectively absorb the collision energy due to the greater kinetic energy carried by electric vehicles, and the protection ability is poor. SUMMARY

[0004] Therefore, the purpose of the utility model is to provide an expressway crash barrier to solve the problem that the overall deformation collapse structure and area of the current expressway crash barrier is less, the collision energy that can be absorbed is low, and for vehicles with greater mass and kinetic energy, the crash barrier cannot effectively absorb the collision energy, and the protection ability is poor.

[0005] To achieve the above purpose, the utility model provides an expressway crash barrier, which comprises:

[0006] A fixed column is vertically fixed and installed on the ground.

[0007] A corrugated beam plate is continuously arranged along the edge of the road and is arranged in parallel with the fixed column.

[0008] A horizontal connecting beam is transversely arranged between the corrugated beam plate and the fixed column, one end of the horizontal connecting beam is rotatably connected with the corrugated beam plate through a rotating connecting sleeve, and the other end is rotatably connected with the fixed column through a buffer connecting sleeve.

[0009] Wherein,

[0010] The parallelogram structure formed between the two adjacent fixed columns, the corrugated beam plate and the horizontal connecting beam allows the corrugated beam plate to translate to the side of the fixed column when a collision occurs;

[0011] The inner side of the buffer connecting sleeve is fixedly connected with a fixed limiting block, and the outer side of the fixed column is surrounded by a plurality of limiting buffer plates;

[0012] When the corrugated beam plate translates to the side of the fixed column due to a collision, the buffer connecting sleeve is driven to rotate around the fixed column, so that the fixed limiting block successively strikes the plurality of limiting buffer plates, causing the limiting buffer plates to deform, break and fall off.

[0013] Further, the adjacent limiting buffer plates are provided with a fan-shaped collapse box, the center of the fan-shaped collapse box is provided with a collapse reserved slot, and the left and right ends of the fan-shaped collapse box are provided with buffer gaskets.

[0014] Further, the outer side of the fixed column is slidingly nested with a fixed buffer sleeve, the limiting buffer plate is fixedly connected with the fixed buffer sleeve, the outer side of the fixed column is uniformly surrounded by a plurality of vertical positioning connection grooves, the inner side of the fixed buffer sleeve is uniformly connected by a plurality of vertical positioning connection blocks, the positioning connection grooves and the positioning connection blocks are matched with each other, and the fixed buffer sleeve is slidingly nested with the positioning connection blocks and the positioning connection grooves on the outer side of the fixed column.

[0015] Further, the inner side of the corrugated beam plate is horizontally provided with a connecting bracket, the corrugated beam plate is connected with the horizontal connecting beam through the connecting bracket, the front and rear ends of the corrugated beam plate are provided with anti-puncture end heads, and the outer side of the corrugated beam plate is provided with a reflective marker.

[0016] Further, the inner end of the horizontal connecting beam is fixedly connected with a rotating connecting shaft, the middle of the connecting bracket is fixedly connected with a rotating connecting sleeve, the rotating connecting shaft is nested and rotatably arranged in the inner side of the rotating connecting sleeve, and the horizontal connecting beam is rotatably connected with the connecting bracket through the rotating connecting shaft and the rotating connecting sleeve.

[0017] Further, the center of the rotating connecting shaft is provided with a driving screw, the rotating connecting shaft drives the driving screw to rotate synchronously, the inner side of the rotating connecting sleeve is vertically provided with a limiting guide groove, the rotating connecting sleeve and the rotating connecting shaft are slidingly nested with a buffer pressing block, the buffer pressing block vertically slides along the rotating connecting sleeve through the limiting guide groove, the center of the buffer pressing block is provided with a driving screw sleeve, the buffer pressing block is connected with the driving screw through the driving screw sleeve, a plurality of annular collapse boxes are stacked above the buffer pressing block, and a limiting cover is fixedly installed at the outer end of the rotating connecting sleeve.

[0018] The utility model discloses an advantageous effect: from above can see, the utility model discloses a kind of highway crash barrier, by the rotation connecting sleeve and buffer connecting sleeve of being set, wave-shaped slab can not only occur plastic deformation to absorb energy when collision, it can also be translated to fixed column side, this translation movement drives buffer connecting sleeve to rotate around fixed column, so that fixed limit block successively impacts multiple limit buffer plate, resulting in the deformation, fracture and shedding of the latter, thereby greatly enhance the energy absorption capacity of entire system. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only the utility model, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0020] Figure 1 It is the back structure schematic view of the embodiment of the utility model;

[0021] Figure 2 It is the front structure schematic view of the embodiment of the utility model;

[0022] Figure 3 It is the overhead structure schematic view of the embodiment of the utility model;

[0023] Figure 4 It is the structure schematic view of fixed column of the embodiment of the utility model;

[0024] Figure 5 It is the structure schematic view of fixed buffer sleeve of the embodiment of the utility model;

[0025] Figure 6 It is the structure schematic view of rotation connecting sleeve of the embodiment of the utility model.

[0026] Marked as in the figure:

[0027] 1, fixed column;101, positioning connecting groove;2, fixed buffer sleeve;201, positioning connecting block;3, limit buffer plate;301, fan-shaped collapse box;302, collapse reserved groove;303, buffer gasket;4, wave-shaped slab;401, anti-puncture end head;402, connecting bracket;403, reflective identification;5, horizontal connecting beam;501, rotation connecting shaft;502, drive screw;503, buffer connecting sleeve;504, fixed limit block;6, rotation connecting sleeve;601, limit guide slot;602, limit top cover;603, buffer top pressing block;604, drive screw sleeve;605, annular collapse box. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with specific embodiments.

[0029] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the utility model should be understood as the usual meaning by those skilled in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connection" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, when the absolute position of the described object changes, the relative positional relationship can also change accordingly.

[0030] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 A highway crash barrier, comprising:

[0031] The fixed column 1 is vertically fixedly installed on the ground.

[0032] The wave-shaped beam plate 4 is continuously arranged along the road edge and is arranged in parallel with the fixed column 1.

[0033] The horizontal connecting beam 5 is transversely arranged between the wave-shaped beam plate 4 and the fixed column 1, one end of the horizontal connecting beam 5 is rotatably connected with the wave-shaped beam plate 4 through the rotating connecting sleeve 6, and the other end is rotatably connected with the fixed column 1 through the buffer connecting sleeve 503.

[0034] Among them,

[0035] The adjacent two fixed columns 1, wave-shaped beam plates 4 and horizontal connecting beams 5 form a parallelogram structure, allowing the wave-shaped beam plate 4 to translate to one side of the fixed column 1 when a collision occurs.

[0036] The inner side surface of the buffer connecting sleeve 503 is fixedly connected with the fixed limiting block 504, and the outer side surface of the fixed column 1 is surrounded by a plurality of limiting buffer plates 3.

[0037] When the corrugated beam plate 4 translates to one side of the fixed column 1 due to the collision, the buffer connecting sleeve 503 is driven to rotate around the fixed column 1, so that the fixed limiting block 504 hits the multiple limiting buffer plates 3 in turn, causing the limiting buffer plates 3 to deform, break and fall off.

[0038] In the embodiment, the rotating connecting sleeve 6 of the guardrail is arranged at the inner end of the horizontal connecting beam 5, so that the corrugated beam plate 4 can rotate relative to the horizontal connecting beam 5, the buffer connecting sleeve 503 is nested on the outer side of the fixed column 1, and the outer end of the horizontal connecting beam 5 is rotationally connected with the fixed column 1 through the buffer connecting sleeve 503, so that a parallelogram structure is formed between the multiple fixed columns 1, the corrugated beam plate 4 and the horizontal connecting beam 5. When a collision occurs, the corrugated beam plate 4 deforms to absorb part of the energy and naturally translates to one side of the fixed column 1, while the fixed limiting block 504 is fixedly connected on the inner side of the buffer connecting sleeve 503, and the multiple limiting buffer plates 3 are connected around the outer side of the fixed column 1. Therefore, when the corrugated beam plate 4 translates to one side of the fixed column 1, the buffer connecting sleeve 503 is driven to rotate around the fixed column 1, and then the fixed limiting block 504 hits the multiple limiting buffer plates 3 in turn, so that the multiple limiting buffer plates 3 deform, break and fall off to absorb the impact energy and buffer, greatly enhancing the energy absorption capacity of the whole system.

[0039] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 Preferably, when the guardrail collides, the fixed limiting block 504 hits the multiple limiting buffer plates 3 in turn, causing the multiple limiting buffer plates 3 to deform, break and fall off, and at the same time extruding the fan-shaped collapse box 301, so that the fan-shaped collapse box 301 deforms and collapses along the collapse reserved groove 302 to absorb energy and buffer through the buffer gasket 303, which can more effectively disperse and absorb the impact energy and reduce the impact force on the vehicle and passengers.

[0040] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, preferably, the guardrail is nested and slidingly arranged with a fixed buffer sleeve 2 outside the fixed stand column 1, and the limiting buffer plate 3 is fixedly connected with the fixed buffer sleeve 2, while the mutual cooperation between the positioning connection groove 101 and the positioning connection block 201 ensures that the fixed buffer sleeve 2 can be stably and accurately nested on the fixed stand column 1, and also allows it to interact up and down the stand column, so as to facilitate disassembly, assembly and adjustment. After each collision, the damaged fixed buffer sleeve 2 and the limiting buffer plate 3 thereon can be quickly replaced to ensure that the anti-collision guardrail system is always in the best working condition. Since the fixed stand column 1 itself does not need to be frequently replaced and is difficult to replace, by designing only the fixed buffer sleeve 2 and the limiting buffer plate 3 need to be updated regularly, the repair work can be completed in a short time, the road closure time and traffic interruption caused by construction are reduced, and the traffic management efficiency is improved.

[0041] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, preferably, the inner side of the corrugated beam plate 4 of the guardrail is horizontally provided with a connecting bracket 402, and the corrugated beam plate 4 is connected with the horizontal connecting beam 5 through the connecting bracket 402, so that the corrugated beam plate 4 can be more stably connected with the horizontal connecting beam 5 through the connecting bracket 402, ensuring the connection strength and reliability between the two. The front and rear ends of the corrugated beam plate 4 are both provided with a piercing prevention end head 401, which prevents the vehicle from being pierced by the sharp end of the corrugated beam plate 4 during collision, reducing the risk of secondary injury to the people in the vehicle. The outer side of the corrugated beam plate 4 is provided with a reflective sign 403, which improves the visibility of the corrugated beam plate 4 at night or in low-visibility conditions, helping the driver to more easily identify the position of the guardrail, thereby reducing the incidence of traffic accidents.

[0042] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, preferably, the inner end of the horizontal connecting beam 5 of the guardrail is fixedly connected with a rotating connection shaft 501, and the middle of the connecting bracket 402 is fixedly connected with a rotating connection sleeve 6, and the rotating connection shaft 501 is nested and rotatingly arranged inside the rotating connection sleeve 6, so that the horizontal connecting beam 5 is rotatingly connected with the connecting bracket 402 through the rotating connection shaft 501 and the rotating connection sleeve 6.

[0043] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, preferably, the center of the rotating connecting shaft 501 of the guardrail is provided with a driving screw 502, the rotating connecting shaft 501 drives the driving screw 502 to rotate synchronously, the inner side of the rotating connecting sleeve 6 is vertically provided with a limiting guide groove 601, the rotating connecting sleeve 6 and the rotating connecting shaft 501 are nested and slidably arranged with a buffer top pressing block 603, the buffer top pressing block 603 slides along the rotating connecting sleeve 6 in the vertical direction through the limiting guide groove 601, the center of the buffer top pressing block 603 is provided with a driving screw sleeve 604, the buffer top pressing block 603 is connected with the driving screw 502 through the driving screw sleeve 604, a plurality of annular collapse boxes 605 are stacked above the buffer top pressing block 603, the outer end of the rotating connecting sleeve 6 is fixedly installed with a limiting top cover 602, when colliding, the rotating connecting shaft 501 drives the driving screw 502 to rotate synchronously, thereby driving the buffer top pressing block 603 to slide upwards, extruding the plurality of annular collapse boxes 605, deforming the plurality of annular collapse boxes 605 to absorb energy, and further improving the anti-collision performance of the guardrail.

[0044] The wave-shaped beam plate 4 can not only plastically deform to absorb energy when colliding, but also can translate to one side of the fixed column 1, the translation movement drives the buffer connecting sleeve 503 to rotate around the fixed column 1, so that the fixed limiting block 504 impacts the plurality of limiting buffer plates 3 in turn, causing the latter to deform, break and fall off, thereby greatly enhancing the energy absorption capacity of the whole system.

[0045] Those skilled in the art shall understand that the discussion of any of the above embodiments is only exemplary, and is not intended to imply that the scope of the utility model is limited to these examples; under the idea of the utility model, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the utility model as described above, which are not provided in details for the sake of simplicity. Any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A highway crash barrier, characterized in that, include: The fixed column (1) is vertically fixed to the ground; The corrugated beam plate (4) is continuously arranged along the edge of the road and is set parallel to the fixed column (1); A horizontal connecting beam (5) spans between the corrugated beam plate (4) and the fixed column (1). One end of the horizontal connecting beam (5) is rotatably connected to the corrugated beam plate (4) through a rotating connecting sleeve (6), and the other end is rotatably connected to the fixed column (1) through a buffer connecting sleeve (503). in, The two adjacent fixed columns (1), the corrugated beam plate (4) and the horizontal connecting beam (5) form a parallelogram structure, which allows the corrugated beam plate (4) to translate to the side of the fixed column (1) when a collision occurs; The inner side of the buffer connecting sleeve (503) is fixedly connected to a fixed limiting block (504), while the outer side of the fixed column (1) is surrounded by multiple limiting buffer plates (3). When the corrugated beam plate (4) moves towards the fixed column (1) due to the collision, it drives the buffer connecting sleeve (503) to rotate around the fixed column (1), thereby causing the fixed limiting block (504) to hit multiple limiting buffer plates (3) in sequence, resulting in the limiting buffer plates (3) deforming, breaking and falling off.

2. The highway crash barrier according to claim 1, characterized in that, A fan-shaped collapse box (301) is installed between adjacent limiting buffer plates (3). A collapse reserved groove (302) is provided at the center of the fan-shaped collapse box (301). Buffer pads (303) are provided at the left and right ends of the fan-shaped collapse box (301).

3. The highway crash barrier according to claim 1, characterized in that, A fixed buffer sleeve (2) is nested and slidably arranged on the outer side of the fixed column (1). The limiting buffer plate (3) is fixedly connected to the fixed buffer sleeve (2). Multiple positioning connection grooves (101) are evenly arranged vertically around the outer side of the fixed column (1). Multiple positioning connection blocks (201) are evenly arranged vertically around the inner side of the fixed buffer sleeve (2). The positioning connection grooves (101) and the positioning connection blocks (201) are mutually cooperated. The fixed buffer sleeve (2) is slidably arranged on the outer side of the fixed column (1) through the mutual interlocking and nesting of the positioning connection blocks (201) and the positioning connection grooves (101).

4. The highway crash barrier according to claim 1, characterized in that, A connecting bracket (402) is horizontally provided on the inner side of the corrugated beam plate (4). The corrugated beam plate (4) is connected to the horizontal connecting beam (5) through the connecting bracket (402). Anti-stab end (401) is provided at both the front and rear ends of the corrugated beam plate (4). Reflective markings (403) are provided on the outer side of the corrugated beam plate (4).

5. The highway crash barrier according to claim 4, characterized in that, The inner end of the horizontal connecting beam (5) is fixedly connected to a rotating connecting shaft (501), and the middle of the connecting bracket (402) is fixedly connected to a rotating connecting sleeve (6). The rotating connecting shaft (501) is nested and rotatably disposed inside the rotating connecting sleeve (6). The horizontal connecting beam (5) is rotatably connected to the connecting bracket (402) through the rotating connecting shaft (501) and the rotating connecting sleeve (6).

6. The highway crash barrier according to claim 5, characterized in that, A drive screw (502) is provided at the center of the rotating connecting shaft (501). When the rotating connecting shaft (501) rotates, it drives the drive screw (502) to rotate synchronously. A limit guide groove (601) is provided vertically on the inner side of the rotating connecting sleeve (6). A buffer top pressure block (603) is nested and slidably provided between the rotating connecting sleeve (6) and the rotating connecting shaft (501). The buffer top pressure block (603) slides vertically along the rotating connecting sleeve (6) through the limit guide groove (601). A drive screw sleeve (604) is provided at the center of the buffer top pressure block (603). The buffer top pressure block (603) is connected to the drive screw (502) through the drive screw sleeve (604). Multiple annular collapse boxes (605) are stacked on top of the buffer top pressure block (603). A limit top cover (602) is fixedly installed on the outer end of the rotating connecting sleeve (6).

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