KR20010001392U - Shock absorbing structure for guard rail - Google Patents

Abstract

The present invention relates to a shock absorbing structure for a concrete security barrier, which is installed on a concrete security barrier installed on a road such as a vehicle-only road to alleviate or offset the impact force of a collision vehicle.

The present invention is a concrete barrier that is firmly built on the road surface, and the guardrail and the plate to match the part of the outer circumferential surface of the guardrail so that the guardrail is attached to the front surface, the guardrail is bolted in the bolt holes drilled on both sides Fastened rail holder, a pipe integrally formed at the center of the rear of the rail holder and inserted and inserted into the through hole provided in the barrier wall, springs carried between the rail holder and the barrier wall while surrounding the pipe, and end of the pipe. It is a buffer structure for the concrete firewall, characterized in that the support is made of a stopper to prevent.

Not only can it be easily added to the firmly constructed concrete firewall, but it can also absorb the impact force of the crash vehicle so that it can quickly return to normal operation without impacting the driver in the event of a collision. It is a useful design to prevent the expansion of the furnace in advance.

Description

Shock absorbing structure for guard rail

The present invention relates to a buffer structure for a concrete firewall that is installed on the concrete barrier wall installed on the road, such as a vehicle-only road to alleviate or offset the impact force of the crash vehicle.

In recent years, the vehicle has become increasingly high speed and large in size, and inadvertent driving, slipping on rainy roads, or bad weather, the vehicle may leave the road, causing the road to bend or bend with another vehicle. It is common to install protection measures on the road surface of high-speed driving points.

By the way, as a protective measure, a railing-type protective measure made of metal is usually installed, but there is a limit in supporting the impact force of a heavy load during a vehicle crash. Therefore, a heavy barrier made of concrete is installed at a high-speed driving point to collide even a large vehicle. It is a tendency not to deviate from the city road.

However, such a barrier is generally constructed so as to be able to withstand the impact load on the crashing vehicle in the event of a vehicle crash, and there is no consideration for the crashing vehicle.

In consideration of this reality, the present inventor can simply install and add to the concrete firewall that is firmly constructed, and if so installed, the inventor can absorb the impact force of the crash vehicle and return to normal operation quickly without impacting the driver in the event of a collision. In order to prevent the expansion of the second accident in advance, the present invention has been studied and completed.

1 is a configuration state of the present invention,

2 is another configuration of the present invention,

3 is a cross-sectional view of the installation state of the present invention.

* Explanation of symbols for main parts of the drawings

1 --- support

11 --- Rail Holder

111 --- Bolt Hole 112 --- Bolt

12 --- pipe

13 --- Spring 13 '--- Pigtail spring

14 --- Plate 15 --- And stopper

2 --- Firewall

21 --- through hole

3 --- guardrail

4 --- Driveway

1 is a configuration diagram showing the overall configuration of the present invention, Figure 2 is a cross-sectional view taken along the line A-A of FIG.

The present invention, as shown in the drawing, in the concrete barrier wall 2 is firmly built on the road surface of the runway (4), the guard rail (3) of a predetermined standard, the guard rail (3) is attached to the front The rail holder 11 and the rail holder 11 which fasten the guard rail 3 with the bolt 112 in the bolt hole 111 which is made of a plate material coinciding with a part of the outer circumferential surface of the guard rail 3. A pipe 12 integrally formed at the rear center of the rear wall and inserted into the through hole 21 provided in the barrier wall 2, and the rail holder 11 and the barrier wall while surrounding the pipe 12. 2) is a buffer structure for a concrete firewall, characterized in that the support (1) consisting of a spring 13, which is supported between the two, and the end stopper 15 to block the end of the pipe (12).

2 is another configuration of the present invention.

In the above configuration, the plate 14 is preferably inserted into the barrier wall 2 side on which the spring 13 is in contact.

In the above-described configuration, the diameter of the spring 13 is more preferably characterized in that the pig tail spring (13 ') is increased from both ends to the middle portion.

The present invention configured as described above is installed as shown in Figure 4, the specification is as follows.

First, since manufacturing parts are manufactured by integrating the rail holder 11 and the pipe 12 in a manufacturing plant, the drill rod drills at a predetermined position of the concrete barrier wall 2 at a site with a diameter slightly larger than that of the pipe 12. Drill the hole 21 and insert the spring 13 or 13 'from the end of the pipe 12 and pass the through hole 21 so that the rail holder 11 faces the traveling path 4. After that, the end stopper 15 is installed. At this time, the end stopper 15 finishes the support 1 so that the support wall 1 does not fall off from the barrier wall 2. Therefore, the end stopper 15 cuts out a tab at the end of the pipe 12 and joins the end stopper 15 made of a nut to finish the structure. It is also possible to employ a structure in which a key groove is provided at the end of the pipe 12 and the indentation of the boss-like end stopper 15 is possible, and in another structure, the end of the pipe 12 is drilled in a radial direction. Any structure, such as a structure (shown in FIG. 2) which fits the end stopper 15 made into a split pin into a hole, can be employ | adopted. After installing the support body 1 at predetermined distances to the security barrier 2, the guard rail 3 of the length corresponding to the space | interval of the support body 1 closely adheres to the rail holder 11 front surface, and through the bolt hole 111, The installation of the shock absorbing structure of the present invention is completed by fastening the bolt 112 to complete the installation of the guard rail 3. At this time, the bolt 112 is fastened to the rail holder 11 in the guard rail 3 to the bolt structure in general, but in the case of using a screw threaded bolt of the rail holder 11 When the bolt is formed from the bolt hole 111 to the guard rail 3, the tab is formed on the guard rail 3, and it is tightened while being drilled to increase work efficiency. However, when the thickness of the guard rail 3 is thin, Since the tightening force cannot be sufficiently obtained, reinforcement of the screwed portion of the guard rail 3 is essential.

In addition, in another configuration of the present invention, only inserting the plate 14 before fitting the pipe 12 to the through hole 21, and attaching the plate 14 so as to be in close contact with the protective wall 2, The remaining installation specifications are the same as described above.

The shock absorbing structure of the present invention installed in the above-described specification, for example, the rail of the support (1) for supporting the guard rail (3), if the traveling vehicle is in shock contact with the guard rail (3) off the running path (4) The holder 11 is forced to the opposite side of the driving path 4, and if the force is greater than the holding force of the spring 13, the pipe 12 is proportional to the force through the through hole 21 of the barrier wall 2. As the entry force of the spring 13 offsets the impact force, and thus, in the case of a minor collision, the impact force is well buffered so that the impact force is not applied to the guard rail 3 or the barrier wall 2 and the traveling vehicle. Even during the collision, the elastic modulus of the spring 13 can be sufficiently buffered, but the increase in the material cost can not be considered, so it is limited to a predetermined standard. If it is broken And to a buffering action, since the firewall only if (2) is not more than the case that it is possible to also reduce construction costs of the subject innovation are barriers (2).

In addition, in another configuration of the present invention, the plate 14 is added to the end of the spring 13 so as not to dig into the concrete barrier 2, to maintain a sufficient damping action can improve the durability, In another configuration, the spring 13 is a pigtail spring 13 'with a larger diameter at the center portion, so that the spring 13 is compressed without overlapping during collision, thereby extending the elastic deformation distance and improving the buffering ability. Will be. Of course, at this time, the addition and subtraction of the diameter of the pig tail spring (13 ') is effective because it does not overlap by the coil diameter of the spring (13).

As described above, the present invention can be installed simply by adding to a firmly constructed concrete firewall, and when installed in this way, the impact force of the collision vehicle can be sufficiently absorbed to return to normal operation quickly without impacting the driver during a collision. This is a useful design to prevent the expansion of the second accident in advance.

Claims (3)

In the concrete barrier wall 2 which is firmly constructed on the road surface of the traveling path 4, a guard rail 3 of a predetermined size matches a part of the outer peripheral surface of the guard rail 3 so that the guard rail 3 is attached to the front surface. The rail holder 11 fastening the guard rails 3 to the bolts 112 in the bolt holes 111 formed on both sides of the plate, and integrally formed at the center of the rear surface of the rail holders 11 so as to protect the barrier wall. A pipe 12 inserted into the through hole 21 provided in (2) back and forth freely, and a spring 13 carried between the rail holder 11 and the protective wall 2 while surrounding the pipe 12. , A buffer structure for a concrete firewall, characterized in that the support (1) consisting of an end stopper (15) to prevent the end of the pipe (12). 2. The buffer structure according to claim 1, wherein a plate (14) is inserted on the side of the barrier wall (2) to which the spring (13) is in contact. 3. The buffer structure for concrete barriers according to claim 1 or 2, wherein the spring (13) is a pig tail spring (13 ') which grows from both ends to the middle portion thereof.