Safety guardrail for road maintenance

Abstract

The utility model discloses a safety guardrail for road maintenance. The safety guardrail comprises a connecting plate, the top end of the connecting plate is fixedly connected with an installation base through bolts, a supporting rod is fixed to the top end of the installation base, a warning structure is installed at one end of the supporting rod, an adjusting structure is installed on one side of the supporting rod, and a protection structure is connected to one side of the adjusting structure in a clamped mode. The multiple sets of adjusting holes are formed in the two sides of the supporting rod at equal intervals, the adjusting holes with the appropriate height can be selected according to the road condition and the safety requirement when the installation plate is installed, and the installation plate and the fixing groove can be installed in the mode that the adjusting screw rods penetrate through the installation plate, are inserted into the adjusting holes and then are screwed tightly. The side-view cross section area of the fixing groove is larger than that of the corrugated plate, when the fixing groove and the corrugated plate are connected, clamping connection can be conducted only by aligning the side face of the corrugated plate with the fixing groove, and therefore the purpose that the height of the transverse rod of the safety guardrail for road maintenance can be adjusted is achieved.

Description

Technical Field

[0001] This utility model relates to the field of traffic safety facilities technology, and in particular to a safety guardrail for highway maintenance. Background Technology

[0002] Highway guardrails are an important component of highway traffic safety facilities. They are designed to absorb collision energy through blocking, deformation, or vehicle climbing, thereby reducing the severity of injury to drivers and passengers. Based on their location on the highway cross-section, they can be divided into roadside guardrails and median guardrails. Based on the degree of deformation after a vehicle collision, they can be divided into rigid guardrails, semi-rigid guardrails, and flexible guardrails. When a vehicle loses control or collides, guardrails can effectively absorb impact energy, slow down the vehicle, reduce the severity of the accident, and protect the vehicle and passengers from further serious injury. At the same time, guardrails can prevent out-of-control vehicles from crossing the road, reducing the risk of secondary collisions with oncoming vehicles or pedestrians and buildings around the road. Guardrails can also clearly define lane boundaries, guiding drivers to follow designated routes and reducing dangerous behaviors such as arbitrary lane changes and driving against traffic.

[0003] To this end, Chinese patent application number CN205444042U discloses a safety guardrail for highway maintenance, including a base, a support rod on the base, and several transverse connecting rods on the support rod; one end of each transverse connecting rod is provided with a rotating connector, and the other end is provided with a corresponding slot; a reflective ball is provided at the upper end of the support rod. This utility model has a reasonable design, simple structure, and is easy to assemble and transport in parts. It has good stability, high reliability, and good warning effect. It can effectively protect the guardrail device from impact and damage, and can also protect the safety of accident vehicles and their occupants to a greater extent, reducing the occurrence of safety accidents. It is easy to promote and use.

[0004] While current highway maintenance safety barriers generally meet people's needs, some problems still exist, as detailed below:

[0005] 1. The problem of difficulty in adjusting the height of the crossbars of safety guardrails used for highway maintenance: The road surface height may vary due to maintenance, repair, or changes in terrain, requiring adjustment of the crossbar height to ensure that the guardrail always maintains an appropriate height difference with the road surface, thereby more effectively providing protection. At the same time, different types of vehicles have different center of gravity heights and collision characteristics, and adjusting the height of the guardrail crossbars can better adapt to the collision needs of different types of vehicles, providing more comprehensive protection.

[0006] 2. The problem that highway maintenance safety barriers are difficult to cushion during vehicle collisions. Highway maintenance safety barriers are usually located at the edge of the lane. When a driver has an accident while driving, the vehicle will collide with the highway maintenance safety barriers on both sides. The vehicle may roll over, lose control, or suffer other serious secondary injuries due to the violent collision. Highway maintenance safety barriers need to have the ability to cushion the impact to reduce the impact on the driver and passengers. Utility Model Content

[0007] The purpose of this utility model is to provide a safety guardrail for highway maintenance, which solves the defects of existing safety guardrails for highway maintenance, such as difficulty in adjusting the height of the crossbars and difficulty in buffering during vehicle collisions.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a safety guardrail for highway maintenance, including a connecting plate;

[0009] The top of the connecting plate is fixedly connected to a mounting base by bolts, and a support rod is fixed to the top of the mounting base;

[0010] A warning structure is installed at one end of the support rod, and an adjustment structure is installed on one side of the support rod;

[0011] The adjustment structure includes an adjustment hole, a mounting plate, an adjustment screw, and a fixing groove. The mounting plate is installed on both sides of the support rod, and the adjustment screw runs through the interior of the mounting plate. A fixing groove is integrally formed on one side of the mounting plate, and a protective structure is snapped onto one side of the adjustment structure.

[0012] In use, first, the connecting plate and the pre-embedded pole are pre-embedded and fixed at equal intervals at the location where the highway maintenance safety guardrail needs to be installed. During installation, it is necessary to ensure that the connecting plate is parallel to the ground or slightly higher than the ground. Then, the mounting base and the connecting plate are fixedly connected by bolts, thereby erecting the support rod. When installing the support rod, pay attention to the direction of the triangular plates at both ends, with the thinner side of the triangular plate facing the direction of oncoming vehicles. Next, align the fixing groove with the two sides of the corrugated plate and snap them together. Select the appropriate adjustment hole according to the required guardrail height, and use the adjusting screw to pass through the mounting plate to fix the mounting plate to both sides of the support rod, thereby fixing the fixing groove and the corrugated plate. Reflective posts can be installed at the top of the support rod in places where danger may occur for warning purposes.

[0013] Furthermore, the bottom end of the connecting plate is integrally formed with a pre-embedded rod, which is distributed in a ring at the bottom end of the connecting plate to ensure the stability of the support rod installation.

[0014] Furthermore, the warning structure includes a triangular plate, a reflective strip, a fixing screw, and a reflective post. The triangular plate is installed at both ends of the support rod, and the fixing screw passes through both the top and bottom ends of the triangular plate. The reflective post is threaded to the top of the support rod, and reminds the driver to pay attention to safety by reflecting the vehicle's lights.

[0015] Furthermore, a reflective strip is attached to one end of the triangular plate. The reflective strip is symmetrically distributed about the central axis of the support rod, which can simultaneously remind vehicles on both sides of the highway maintenance safety guardrail to pay attention to safety.

[0016] Furthermore, the outer side wall of the reflector is uniformly provided with external threads, and the inner side wall of the top of the support rod is uniformly provided with internal threads that cooperate with the external threads. The reflector and the support rod are threadedly connected, allowing the reflector to be disassembled and adjusted at will. It can be installed at road intersections and turns, thereby further reminding drivers of potential dangers on the road and reducing the occurrence of accidents.

[0017] Furthermore, the adjustment holes are located on both sides of the support rod and are arranged at equal intervals on both sides of the support rod. When installing the mounting plate, the appropriate height of the adjustment holes can be selected according to the road conditions and safety requirements.

[0018] Furthermore, the protective structure includes a corrugated plate, a rubber layer, and a polyethylene foam layer. The corrugated plate is snapped onto one side of the adjustment structure. Both ends of the corrugated plate are provided with rubber layers, and one end of the corrugated plate is provided with a polyethylene foam layer. It can absorb collision energy through its own deformation, thereby reducing damage to the vehicle and passengers.

[0019] This utility model provides a safety guardrail for highway maintenance, which has the following advantages: Multiple sets of adjustment holes are equally spaced on both sides of the support rod. When installing the mounting plate, the appropriate height of the adjustment hole can be selected according to road conditions and safety requirements. The mounting plate and fixing groove can be installed by passing an adjustment screw through the mounting plate and inserting it into the adjustment hole, then tightening it. The side cross-sectional area of ​​the fixing groove is larger than that of the corrugated plate. When connecting the fixing groove and the corrugated plate, simply align the side of the corrugated plate with the fixing groove for a snap-fit ​​connection. The installation operation is simple and quick, and can be adjusted at will. The corrugated plate of appropriate height restrains the movement direction of vehicles, preventing traffic accidents such as collisions and rollovers. This achieves the purpose of adjusting the height of the crossbars in the safety guardrail for highway maintenance.

[0020] By fastening multiple corrugated plates to one side of the support rod and fixing groove, the corrugated plates, with their wavy sides, can more effectively disperse and absorb impact force. When a vehicle collides with the guardrail, the corrugated plates can absorb the collision energy through their own deformation, thereby reducing injury to the vehicle and passengers. Inside the corrugated plates, there are rubber layers and polyethylene foam layers. The rubber layer has excellent elasticity and cushioning capacity. When a vehicle collides with the guardrail, the rubber layer can absorb a large amount of impact energy, thereby reducing damage to the vehicle and the guardrail itself. The polyethylene foam layer can further improve the overall strength without significantly increasing the mass, thus achieving the purpose of the safety guardrail for highway maintenance to cushion vehicle collisions. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a front view structural diagram of the present utility model;

[0023] Figure 3 This is a frontal cross-sectional view of the present invention.

[0024] Figure 4 This is a side sectional view of the present invention.

[0025] Figure 5 For the present utility model Figure 4 A magnified schematic diagram of a partial cross-section at point A in the middle.

[0026] The following are the annotations in the attached figures: 1. Connecting plate; 2. Embedded rod; 3. Mounting base; 4. Support rod; 5. Warning structure; 501. Triangular plate; 502. Reflective strip; 503. Fixing screw; 504. Reflective column; 6. Adjustment structure; 601. Adjustment hole; 602. Mounting plate; 603. Adjusting screw; 604. Fixing groove; 7. Protective structure; 701. Corrugated plate; 702. Rubber layer; 703. Polyethylene foam layer. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-5 One embodiment of this utility model is a safety guardrail for highway maintenance, including a connecting plate 1.

[0029] The bottom end of the connecting plate 1 is integrally formed with a pre-embedded rod 2, which is distributed in a ring at the bottom end of the connecting plate 1. The top end of the connecting plate 1 is fixedly connected with a mounting base 3 by bolts, and a support rod 4 is fixed to the top end of the mounting base 3.

[0030] A warning structure 5 is installed at one end of the support rod 4. The warning structure 5 includes a triangular plate 501, a reflective strip 502, a fixing screw 503, and a reflective post 504. The triangular plate 501 is installed at both ends of the support rod 4. A reflective strip 502 is glued to one end of the triangular plate 501. The reflective strip 502 is symmetrically distributed about the central axis of the support rod 4. The fixing screw 503 passes through the top and bottom ends of the triangular plate 501. The reflective post 504 is threaded to the top end of the support rod 4. External threads are evenly provided on the outer side wall of the reflective post 504. Internal threads that cooperate with the external threads are evenly provided on the inner side wall of the top end of the support rod 4. The reflective post 504 and the support rod 4 are threadedly connected.

[0031] See attached document Figure 1-5 As shown, triangular plates 501 are installed at both ends of the support rod 4 via fixing screws 503. The long right-angled side of the triangular plate 501 is attached to the surface of the support plate, and reflective strips 502 are glued to the side. During installation, ensure that the acute angle of the triangular plate 501 faces the direction of the oncoming vehicle, so that the reflective strips 502 face the driver at a larger angle, thus better alerting the driver to safety at night by reflecting vehicle lights. A reflective post 504 can be installed at the top of the support rod 4 via a threaded connection. The reflective post 504 can be easily removed and adjusted, and can be installed at intersections and turns to further alert drivers to potential dangers on the road and reduce the occurrence of accidents.

[0032] An adjustment structure 6 is installed on one side of the support rod 4. The adjustment structure 6 includes an adjustment hole 601, a mounting plate 602, an adjustment screw 603, and a fixing groove 604. The adjustment holes 601 are opened on both sides of the support rod 4 and are arranged at equal intervals on both sides of the support rod 4. The mounting plate 602 is installed on both sides of the support rod 4. The adjustment screw 603 passes through the interior of the mounting plate 602. A fixing groove 604 is integrally formed on one side of the mounting plate 602.

[0033] See attached document Figure 1-5As shown, multiple sets of adjustment holes 601 are equally spaced on both sides of the support rod 4. When installing the mounting plate 602, the appropriate height of the adjustment hole 601 can be selected according to the road conditions and safety requirements. The mounting plate 602 and the fixing groove 604 can be installed by passing the adjusting screw 603 through the mounting plate 602 and inserting it into the adjustment hole 601 and tightening it. The side view cross-sectional area of ​​the fixing groove 604 is larger than the side view cross-sectional area of ​​the corrugated plate 701. When connecting the fixing groove 604 and the corrugated plate 701, it is only necessary to align the side of the corrugated plate 701 with the fixing groove 604 to snap them together. The installation operation is simple and quick, and can be adjusted at will. The corrugated plate 701 of appropriate height plays a restraining role in the movement direction of the vehicle, avoiding traffic accidents such as vehicle collisions and rollovers.

[0034] A protective structure 7 is snapped onto one side of the adjusting structure 6. The protective structure 7 includes a corrugated plate 701, a rubber layer 702, and a polyethylene foam layer 703. The corrugated plate 701 is snapped onto one side of the adjusting structure 6. Both ends of the corrugated plate 701 are provided with rubber layers 702, and one end of the corrugated plate 701 is provided with a polyethylene foam layer 703.

[0035] See attached document Figure 1-5 As shown, multiple corrugated plates 701 are snapped onto one side of the support rod 4 and the fixing groove 604. The sides of the corrugated plates 701 are wavy, which can more effectively disperse and absorb impact force. When a vehicle collides with the guardrail, the corrugated plates 701 can absorb the collision energy through their own deformation, thereby reducing the damage to the vehicle and passengers. Inside the corrugated plates 701, a rubber layer 702 and a polyethylene foam layer 703 are provided. The rubber layer 702 has excellent elasticity and buffering capacity. When a vehicle collides with the guardrail, the rubber layer 702 can absorb a large amount of impact energy, thereby reducing the damage to the vehicle and the guardrail itself. The polyethylene foam layer 703 can further improve the overall strength without increasing the mass significantly.

[0036] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A safety guardrail for highway maintenance, comprising a connecting plate (1); Its features are: The top of the connecting plate (1) is fixedly connected to the mounting base (3) by bolts, and the top of the mounting base (3) is fixed with a support rod (4). A warning structure (5) is installed at one end of the support rod (4), and an adjustment structure (6) is installed on one side of the support rod (4). The adjustment structure (6) includes an adjustment hole (601), a mounting plate (602), an adjustment screw (603), and a fixing groove (604). The mounting plate (602) is installed on both sides of the support rod (4). The adjustment screw (603) passes through the interior of the mounting plate (602). A fixing groove (604) is integrally formed on one side of the mounting plate (602). A protective structure (7) is snapped onto one side of the adjustment structure (6).

2. The safety guardrail for highway maintenance according to claim 1, characterized in that: The bottom end of the connecting plate (1) is integrally formed with a pre-embedded rod (2), and the pre-embedded rod (2) is distributed in a ring at the bottom end of the connecting plate (1).

3. The safety guardrail for highway maintenance according to claim 1, characterized in that: The warning structure (5) includes a triangular plate (501), a reflective strip (502), a fixing screw (503), and a reflective post (504). The triangular plate (501) is installed at both ends of the support rod (4). The top and bottom ends of the triangular plate (501) are both penetrated by the fixing screw (503). The reflective post (504) is threaded to the top end of the support rod (4).

4. A safety guardrail for highway maintenance according to claim 3, characterized in that: A reflective strip (502) is attached to one end of the triangular plate (501), and the reflective strip (502) is symmetrically distributed about the central axis of the support rod (4).

5. A safety guardrail for highway maintenance according to claim 3, characterized in that: The outer side wall of the reflector (504) is uniformly provided with external threads, and the inner side wall of the top of the support rod (4) is uniformly provided with internal threads that cooperate with the external threads. The reflector (504) and the support rod (4) are connected by threads.

6. A safety guardrail for highway maintenance according to claim 1, characterized in that: The adjustment holes (601) are opened on both sides of the support rod (4), and the adjustment holes (601) are arranged at equal intervals on both sides of the support rod (4).

7. A safety guardrail for highway maintenance according to claim 1, characterized in that: The protective structure (7) includes a corrugated plate (701), a rubber layer (702) and a polyethylene foam layer (703). The corrugated plate (701) is snapped onto one side of the adjustment structure (6). Both ends of the corrugated plate (701) are provided with rubber layers (702), and one end of the corrugated plate (701) is provided with a polyethylene foam layer (703).

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