Traffic anti-collision guardrail

Abstract

The utility model relates to the technical field of guardrails, and discloses a traffic anti-collision guardrail which comprises a base, the top of the base is fixedly connected with a fixing column, the front end and the rear end of the fixing column are both rotationally connected with connecting rods, the top ends of the connecting rods are rotationally connected with first connecting pieces, and the rear sides of the first connecting pieces are fixedly connected with compression springs. A second connecting piece is fixedly connected to the top end of the compression spring, a fixing block is rotationally connected to the rear side of the second connecting piece, and a telescopic spring pipe is rotationally connected to the bottom end of the fixing block. According to the utility model, the angle of the connecting rod in the protective shell is changed, so that the position of the fixing column is changed, the position of the top plate is changed together, and under the action of the compression spring, the parallelogram structure formed by the connecting rod and the fixing column can shake back and forth in a small range; therefore, instantaneous impact energy borne by the guardrail is converted into attenuation vibration, and the effect of reducing impact force can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of guardrail technology, and in particular to a traffic crash barrier. Background Technology

[0002] Traffic guardrails are traffic safety facilities installed on the outer side of road shoulders, traffic dividers, and sidewalk curbs. They absorb collision energy by deforming themselves or by allowing vehicles to climb, thereby changing the direction of vehicle travel, preventing vehicles from going off the road or entering the oncoming lane, and minimizing injury to occupants.

[0003] Existing traditional guardrails typically use corrugated guardrail panels as the main body. These guardrails absorb collision energy through changes in wheel rotation angle, vehicle displacement and deformation, and friction between the vehicle and the guardrail or the ground. However, due to their excessive rigidity, these guardrails are prone to causing vehicle bounce or damage to the guardrail structure. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a traffic crash barrier, which aims to improve the problem that the existing barriers are too rigid and easily cause significant damage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a traffic crash barrier, comprising a base, a fixed post fixedly connected to the top of the base, connecting rods rotatably connected to both ends of the fixed post, a connecting piece rotatably connected to the top of the connecting rod, a compression spring fixedly connected to the rear side of the connecting piece rotatably, a connecting piece 2 fixedly connected to the top of the compression spring, a fixed block rotatably connected to the rear side of the connecting piece 2, a telescopic spring tube rotatably connected to the bottom end of the fixed block, the bottom end of the telescopic spring tube rotatably connected to the fixed post, and an adjustment mechanism provided on the inner wall of the base for adjusting the spacing of the barrier.

[0006] Preferably, the adjustment mechanism includes a limiting groove, which is fixedly connected to the base. A connecting arm is slidably connected to the inner wall of the limiting groove. A limiting spring is fixedly connected to the inner end of the connecting arm. A moving rod is slidably connected to the bottom end of the limiting spring. A pin is fixedly connected to the bottom end of the moving rod.

[0007] Preferably, the top of the moving rod is rotatably connected to the connecting arm, and the upper and lower sides of the limiting groove are provided with ratchet grooves, and the surface of the pin is in contact with the inner wall of the ratchet groove.

[0008] Preferably, a connecting groove is provided on the right side of the base, and the connecting groove is slidably connected to the connecting arm. A fixing hole is provided on the right side of the bottom of the base, and a fixing screw is threadedly connected to the fixing hole. The top of the fixing screw is threadedly connected to the left end of the connecting arm.

[0009] Preferably, a corrugated guardrail plate is fixedly connected to the top of the base, and a top plate is provided on the top of the corrugated guardrail plate.

[0010] Preferably, a protective shell is fixedly connected to the top of the base, and the protective shell is used to protect the fixing column and the connecting rod.

[0011] Preferably, the base is made of duplex steel.

[0012] Preferably, a groove is provided at the bottom of the top plate, and the corrugated guardrail is slidably connected to the groove.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, when the guardrail is subjected to external impact, the angle of the connecting rod inside the protective shell changes, causing the position of the fixed column to change, thereby causing the top plate to change position as well. Under the action of the compression spring, the parallelogram structure formed by the connecting rod and the fixed column can sway back and forth slightly, thereby converting the instantaneous impact energy of the guardrail into damped vibration, which can achieve the effect of reducing impact force.

[0015] 2. In this utility model, when it is necessary to adjust the guardrail spacing, the connecting arm is pulled outward. Under the action of the limiting spring, the pin of the fixed connection of the moving rod can fit with the ratchet groove, so that the limiting groove can limit the connecting arm after it stops moving. This makes the pull-out length of the connecting arm adjustable, realizes the adjustability of the guardrail spacing, and optimizes the terrain adaptability of the guardrail. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a traffic crash barrier proposed in this utility model;

[0017] Figure 2 This is a bottom schematic diagram of a traffic crash barrier proposed in this utility model;

[0018] Figure 3 A three-dimensional schematic diagram of the anti-collision mechanism of a traffic crash barrier proposed in this utility model;

[0019] Figure 4 This is a cross-sectional view of the base of a traffic crash barrier proposed in this utility model.

[0020] Legend:

[0021] 1. Base; 2. Wave-shaped guardrail panel; 3. Protective shell; 4. Top plate; 5. Fixing post; 6. Telescopic spring tube; 7. Fixing block; 8. Connecting rod; 9. Compression spring; 10. Ratchet; 11. Connecting arm; 12. Limiting groove; 13. Moving rod; 14. Limiting spring; 15. Fixing hole; 16. Fixing screw; 17. Connecting groove; 18. Pin; 19. Connector 1; 20. Connector 2. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-4 An embodiment of this utility model provides a traffic crash barrier, including a base 1, a fixed post 5 fixedly connected to the top of the base 1, a connecting rod 8 rotatably connected to both the front and rear ends of the fixed post 5, a connecting piece 19 rotatably connected to the top of the connecting rod 8, a compression spring 9 fixedly connected to the rear side of the connecting piece 19, a connecting piece 20 fixedly connected to the top of the compression spring 9, a fixed block 7 rotatably connected to the rear side of the connecting piece 20, a telescopic spring tube 6 rotatably connected to the bottom end of the fixed block 7, and a rotatable connection between the bottom end of the telescopic spring tube 6 and the fixed post 5. An adjustment mechanism is provided on the inner wall of the base 1 for adjusting the spacing of the barrier.

[0024] When the guardrail is impacted, the telescopic spring tube 6, which consists of a spring rod and a sliding sleeve, can move within the sliding sleeve when the spring rod is subjected to external force. This allows the telescopic spring tube 6, together with the compression spring 9, to limit the spatial movement range of the fixed block 7, thereby limiting the shaking of the top plate 4 and the connecting rod 8 within a certain range and preventing excessive amplitude from affecting the daily use of the guardrail.

[0025] Reference Figure 2 and Figure 4 The adjustment mechanism includes a limiting groove 12, which is fixedly connected to the base 1. A connecting arm 11 is slidably connected to the inner wall of the limiting groove 12. A limiting spring 14 is fixedly connected to the inner end of the connecting arm 11. A moving rod 13 is slidably connected to the bottom end of the limiting spring 14. A pin 18 is fixedly connected to the bottom end of the moving rod 13.

[0026] When adjusting the guardrail spacing, the connecting arm 11 is pulled to move the movable rod 13 connected to the bottom end of the connecting arm 11. Since the limiting spring 14 is also fixed on the connecting arm 11 and the bottom end of the limiting spring 14 is slidably connected to the movable rod 13, the groove opened on the surface of the movable rod 13 allows the bottom end of the limiting spring 14 to fit into the groove when the connecting arm 11 is stretched to its longest length, and the bottom end of the movable rod 13 remains in a downward tilted state. At this time, the connecting arm 11 is pushed to the right end of the limiting groove 12, and the movable rod 13 can be returned to its original position under the action of the ratchet groove 10, thereby restoring the extended part of the connecting arm 11 to its initial shortest state.

[0027] Reference Figure 4 The top of the moving rod 13 is rotatably connected to the connecting arm 11. The upper and lower sides of the limiting groove 12 are provided with ratchet grooves 10, and the surface of the pin 18 is in contact with the inner wall of the ratchet groove 10.

[0028] Since the left side of the ratchet groove 10 is lower than the right side, when the movable rod 13 in the tilted state moves to the right side of the ratchet groove 10, the bottom end of the movable rod 13 naturally moves upward along the path of the ratchet groove 10, causing the limiting spring 14 to disengage from the slot on the surface of the movable rod 13. At the same time, the connecting arm 11 moves to the right end of the limiting groove 12, and the extended part of the connecting arm 11 returns to its shortest length, thereby realizing the reset function of the adjustment mechanism.

[0029] Reference Figure 2 The base 1 has a connecting groove 17 on its right side, which is slidably connected to the connecting arm 11. The base 1 has a fixing hole 15 on its bottom right side, which is threaded with a fixing screw 16. The top of the fixing screw 16 is threadedly connected to the left end of the connecting arm 11. The connecting arm 11 is inserted through the connecting groove 17, and the fixing screw 16 and the fixing hole 15 fix the connecting arm 11 inside the base 1 of the guardrail to be connected, thereby connecting the two guardrails together. This realizes the modular installation of the guardrail and improves the convenience of guardrail installation.

[0030] Reference Figure 1 The base 1 is fixedly connected to the top of the corrugated guardrail plate 2, and the top of the corrugated guardrail plate 2 is provided with a top plate 4. The top of the guardrail is connected together through the top plate 4, which improves the stability of the guardrail to a certain extent.

[0031] Reference Figure 1 The base 1 is fixedly connected to the top of the protective shell 3. The protective shell 3 is used to protect the fixed column 5 and the connecting rod 8. The surface of the protective shell 3 is made of polyvinylidene fluoride. Polyvinylidene fluoride has excellent properties such as anti-aging, chemical resistance, weather resistance and ultraviolet radiation resistance. When the guardrail is in the open environment for a long time, it can protect the internal anti-collision mechanism from external material corrosion.

[0032] Reference Figure 1The base 1 is made of duplex steel, which has good resistance to corrosion fatigue and wear corrosion, thus extending the service life of the guardrail.

[0033] Reference Figure 2 The top plate 4 has a sliding groove at its bottom, and the corrugated guardrail 2 is slidably connected to the sliding groove. The corrugated guardrail 2 enables the guardrail to have good impact resistance. At the same time, the corrugated guardrail 2 has a certain degree of energy absorption function, making the guardrail less likely to be destroyed by a collision. It also provides good protection for vehicles and drivers and passengers. In addition, when the guardrail is subjected to an external impact and the top plate 4 tilts, the corrugated guardrail 2 can move within a small range through the sliding connection with the top plate 4, thereby helping to disperse the impact energy and further reducing impact damage.

[0034] Working principle: When the guardrail is subjected to external impact, the angle of the connecting rod 8 inside the protective shell 3 changes. Since the connecting rod 8 and the fixed post 5 form a parallelogram, the position of the fixed post 5 changes under the action of the connecting rod 8, thereby causing the top plate 4 to change position as well. Since the connecting rod 8 is equipped with a connecting piece 19, the fixed post 5 is fixedly connected with a fixed block 7, the fixed block 7 is equipped with a connecting piece 20, and a compression spring 9 is connected between the connecting piece 20 and the connecting piece 19, the compression spring 9 generates elastic force when the connecting rod 8 rotates. Under the action of the elastic force of the compression spring 9, the parallelogram structure formed by the connecting rod 8 and the fixed post 5 can sway back and forth slightly, thereby converting the instantaneous impact energy of the guardrail into damped vibration, which can achieve the effect of reducing impact force.

[0035] When the guardrail spacing needs to be adjusted, the connecting arm 11 is pulled outward. Since the bottom of the connecting arm 11 is rotatably connected to the moving rod 13, and under the action of the limit spring 14, the pin 18 fixedly connected to the moving rod 13 can fit with the ratchet groove 10, so that the limit groove 12 can limit the connecting arm 11 after it stops moving. This makes the pull-out length of the connecting arm 11 adjustable. Since the two adjacent guardrails are connected by the connecting arm 11 inserted into the connecting groove 17, and the connecting arm 11 is fixed by the threaded connection between the fixing screw 16 and the fixing hole 15, the adjustable spacing of the guardrail is realized, and the terrain adaptability of the guardrail is optimized.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A traffic crash barrier comprising a base (1) characterised in that: The base (1) top fixedly connected with fixed column (5), the fixed column (5) both ends are rotatably connected with connecting rod (8), the connecting rod (8) top rotatably connected with connecting piece one (19), the connecting piece one (19) rear fixedly connected with compression spring (9), the compression spring (9) top fixedly connected with connecting piece two (20), the connecting piece two (20) rear rotatably connected with fixed block (7), the fixed block (7) bottom rotatably connected with telescopic spring tube (6), the telescopic spring tube (6) bottom and fixed column (5) rotatably connected, the base (1) inner wall is provided with adjusting mechanism, the adjusting mechanism is used for adjusting the guardrail spacing.

2. A crash barrier according to claim 1, wherein: The adjusting mechanism includes a limiting groove (12), the limiting groove (12) is fixedly connected between the base (1), the connecting arm (11) is slidably connected in the limiting groove (12), the limiting spring (14) is fixedly connected in the connecting arm (11), the moving rod (13) is slidably connected at the bottom of the limiting spring (14), the pin (18) is fixedly connected at the bottom of the moving rod (13).

3. A crash barrier according to claim 2, wherein: The moving rod (13) top and connecting arm (11) rotatably connected, the limiting groove (12) both sides are provided with ratchet groove (10), the pin (18) surface and ratchet groove (10) inner wall between fit.

4. A crash barrier according to claim 2, wherein: The base (1) right side is provided with connecting groove (17), the connecting groove (17) and connecting arm (11) between the sliding connection, the base (1) bottom right side is provided with fixed hole (15), the fixed hole (15) is screwed with fixed screw (16), the fixed screw (16) top and connecting arm (11) left end between screw connection.

5. A crash barrier according to claim 1 wherein: The base (1) top fixedly connected with wave-shaped guardrail plate (2), the wave-shaped guardrail plate (2) top is provided with top plate (4).

6. A crash barrier according to claim 1 wherein: The base (1) top fixedly connected with protective shell (3), the protective shell (3) is used for protecting fixed column (5) and connecting rod (8).

7. A crash barrier according to claim 1 wherein: The base (1) adopts duplex steel material.

8. A crash barrier according to claim 5 wherein: The bottom of the top plate (4) is provided with a sliding groove, and the wave-shaped guardrail plate (2) is slidably connected with the sliding groove.

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