CN104018446B - Cushion guardail - Google Patents

Abstract

The invention relates to a buffer guardrail, which is characterized in that it comprises a guardrail box body, grooves respectively arranged on both sides of the guardrail box body, two buffer blocks, a spherical truss fixedly connected between the two grooves in the guardrail box body, The buffer springs respectively arranged in the grooves are transversely connected to the balance track at the bottom of the guardrail box body, a pendulum iron is arranged on the upper part of the balance track, and horizontally respectively set at both ends of the balance track. Stoppers and angle irons, the balance track is fixedly connected to the stoppers by bolts; a built-in connection assembly with an energy-absorbing device is provided on the outside of the bottom of the guardrail box; The side exterior is provided with a chain connection assembly and a chain with an energy-absorbing device. The advantage of the present invention is that through the multi-level buffer impact, it can buffer layer by layer, absorb the impact energy, make the energy of impact change from large to small, absorb layer by layer, and reduce the impact force to the minimum degree, so as to achieve the purpose of protecting the safety of the vehicle .

Description

Buffer fence

technical field

The invention belongs to the technical field of highway guardrails, in particular to a buffer guardrail.

Background technique

The road guardrail is set on both sides of the road, and it can also play a role of buffer protection when it is hit by a vehicle. At present, the known highway guardrails are all equipped with permanently fixed rigid guardrails, which are generally concrete structures, reinforced concrete structures, stone masonry structures, profiled steel structures or combined structures of reinforced concrete and profiled steel, etc., such guardrails with rigid guardrails have strong protection capabilities. However, due to the high rigidity, the impact damage to the accident vehicle and the occupant, especially in some small-radius curved road sections, often causes the disintegration of the large vehicle and thus loss of control, or serious injury or even death.

Contents of the invention

The purpose of the present invention is to provide a buffer guardrail that is easy to install and disassemble, can provide buffering effect for vehicles in accidents, reduce the peak value of collision load, reduce impact damage to vehicles and passengers, and ensure driving safety.

The buffer guardrail of the present invention is characterized in that it includes guardrail boxes connected to each other by chains, grooves respectively arranged on both sides of the guardrail box body, and buffer blocks are arranged at both ends of the guardrail box body, one end of the buffer block Embedded in the groove, the other end protrudes outside the guardrail box, fixedly connected to the spherical truss between the two grooves in the guardrail box, the buffer springs respectively arranged in the grooves, the buffer springs One end is fixed on the inner side of the groove, the other end is connected with the buffer block, and is fixed horizontally on the balance track at the bottom of the guardrail box body, and a balance body is arranged on the upper part of the balance track. Blocks and angle irons are respectively provided at the ends, and the balance track is fixedly connected to the blocks through bolts; a built-in connection assembly with an energy-absorbing device is provided outside the bottom of the guardrail box;

A chain connection assembly and a chain with an energy-absorbing device are arranged outside the two sides of the guardrail box body.

The inner side of the lower part of both ends of the guardrail box is provided with a protective plate, and the said protective plate is fixedly connected with the guardrail box by rivets.

Described balance track is 7-9.

The size of the buffer block is greater than the size of the grooves on both sides of the guardrail box.

The embedded part connection assembly with energy absorbing device consists of a backing plate, a buffer connection buckle connected with the backing plate, a spring connected with the inner bottom of the buffer connection buckle, and a spring connected with the top of the spring. It is composed of an inner sleeve and a nut threadedly connected with the inner sleeve.

The chain connection assembly with an energy-absorbing device is also composed of a backing plate, a buffer connection buckle connected to the backing plate, a spring connected integrally with the inner bottom of the buffer connection buckle, and an inner inner body connected integrally with the top of the spring. It is composed of a sleeve and a nut threadedly connected with the inner sleeve.

The advantages of the present invention are:

Compared with the prior art, the present invention has the advantages of: a first-level buffer impact is performed through the spherical truss installed in the guardrail box, buffer springs and buffer blocks; the impact kinetic energy of the vehicle hitting the guardrail box passes through the pendulum iron at the bottom of the guardrail box Converted into gravitational potential energy for secondary impact impact; through the bottom of the guardrail box body, there are embedded component connection components with buffer devices for third-level impact impact; through the outer sides of the guardrail box body, there are chain connection components with buffer devices The impact force is transmitted to two adjacent guardrail boxes with the chain, and the traction force between the guardrail boxes performs four-level buffer impact. Through the above-mentioned four-level buffer impact, it can buffer layer by layer, absorb the energy of impact, make the energy of impact change from large to small, absorb layer by layer, and reduce the impact force to the minimum level, so as to protect the safety of vehicles and pedestrians.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Figure 2 is a side view of the present invention.

FIG. 3 is an enlarged view of part A of FIG. 1 .

FIG. 4 is an enlarged view of part B of FIG. 1 .

detailed description

The specific embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1-2, the buffer guardrail of the present invention includes guardrail boxes 1 interconnected by chains, grooves 14 respectively arranged on both sides of the guardrail box body 1, and buffer stops at both ends of the guardrail box body 13. One end of the buffer block 13 is embedded in the groove 14, and the other end protrudes outside the guardrail box 1, and is fixedly connected to the spherical truss 2 between the two grooves 14 in the guardrail box 1, respectively. The buffer spring 15 in the groove 14, one end of the buffer spring 15 is fixed inside the groove 14, and the other end is connected with the buffer block 13, and is fixed laterally on the inner bottom of the guardrail box 1. A balance track 9, a balance body is provided on the top of the balance track 9, a stop block and an angle iron are respectively arranged laterally at both ends of the balance track, and the balance track is fixedly connected to the stop block by bolts; A built-in connection assembly with an energy-absorbing device is provided outside the bottom of the guardrail box;

A chain connection assembly and a chain with an energy-absorbing device are arranged outside the two sides of the guardrail box body.

The inner side of the lower part of both ends of the guardrail box is provided with a protective plate, and the said protective plate is fixedly connected with the guardrail box by rivets.

Described balance track is 7-9.

The size of the buffer block is greater than the size of the grooves on both sides of the guardrail box.

The embedded part connection assembly with energy absorbing device consists of a backing plate, a buffer connection buckle connected with the backing plate, a spring connected with the inner bottom of the buffer connection buckle, and a spring connected with the top of the spring. It is composed of an inner sleeve and a nut threadedly connected with the inner sleeve.

The chain connection assembly with an energy absorbing device is also composed of a backing plate, a buffer connecting buckle connected to the backing plate, a spring connected integrally with the inner bottom of the buffer connecting buckle, and an inner spring connected integrally with the top of the spring. It is composed of a sleeve and a nut threadedly connected with the inner sleeve.

It is characterized in that it includes guardrail boxes 1 connected to each other by chains, grooves 14 respectively arranged on both sides of the guardrail box 1, one end is inserted into the groove 14, and the other end protrudes from two buffer woods at both ends of the guardrail box 1. Block 13, fixedly connected to the spherical truss 2 between the two grooves 14 in the guardrail box body 1, buffer springs 15 respectively arranged in the grooves 14, one end of the buffer spring 15 and the inner side of the groove 14 Connect, and the other end is connected with buffer block 13, carries out one-level buffer hit by the spherical truss installed in guardrail casing, buffer spring and buffer block.

The present invention is horizontally connected to the pendulum iron track 9 at the inner bottom of the guardrail box 1, a pendulum iron 8 is arranged on the upper part of the pendulum iron track 9, and a pendulum iron 8 is arranged on the two ends of the pendulum iron track 9 in the transverse direction. There are stoppers 12 and angle irons 7, and the pendulum rails 9 are fixedly connected to the stoppers 12 through bolts 11; there are 7-9 pendulum rails 9. In this way, the impact kinetic energy of the vehicle hitting the guardrail box is converted into gravitational potential energy by the pendulum iron at the bottom of the guardrail box to achieve the purpose of the secondary buffer impact.

As shown in FIG. 3 , the present invention is provided with an embedded part connection assembly 10 with an energy absorbing device outside the bottom of the guardrail box 1; -1, the buffer connection buckle 10-2 connected with this backing plate 10-1, the spring 10-3 connected integrally with the inner bottom of the buffer connection buckle 10-2, and the spring 10-3 connected integrally with the top of the spring 10-3 The inner sleeve 10-4 and the nut 10-5 threaded with the inner sleeve 10-4 are formed to form a three-stage buffer impact.

As shown in Fig. 4, the present invention is provided with the chain connection assembly 3 and the chain 4 with energy-absorbing device on the both sides of described guardrail box body 1, and the chain connection assembly with energy-absorbing device of described band energy-absorbing device The component 3 consists of a backing plate 3-1, a buffer connection buckle 3-2 connected to the backing plate 3-1, a spring 3-4 connected to the inner bottom of the buffer connection buckle 3-2, and the spring 3-4 The top is connected with an integral inner sleeve 3-3 and a nut 3-5 threadedly connected with the inner sleeve 3-3. The outside of both sides of the guardrail box is equipped with a chain connection assembly with a buffer device and the chain transmits the impact force to the two adjacent guardrail boxes, and the traction between the guardrail boxes performs four-level buffer impact.

The inner side of the lower part of both ends of the guardrail box body 1 described in the present invention is provided with wooden guard boards 6 , and the wooden guard boards 6 are fixedly connected with the guardrail box body 1 through rivets 5 . Its wooden guard plate 6 has played the effect of protecting guardrail casing 1.

The present invention uses the above-mentioned multi-stage cushioning to buffer and absorb impact energy layer by layer, making the energy of impact vary from large to small, absorbing layer by layer, and reducing the impact force to the minimum degree, thereby achieving the purpose of protecting the safety of the vehicle.

Claims (6)

1. A buffer guardrail is characterized in that comprising guardrail boxes connected to each other by chains, grooves respectively arranged on both sides of the guardrail box body, and buffer stops at both ends of the guardrail box body, said buffer stoppers One end is embedded in the groove, the other end protrudes outside the guardrail box, the spherical truss fixedly connected between the two grooves in the guardrail box, the buffer springs respectively arranged in the grooves, the buffer One end of the spring is fixed on the inside of the groove, the other end is connected with the buffer block, and the balance track is fixed horizontally on the bottom of the guardrail box body, and a balance body is arranged on the upper part of the balance track. Blocks and angle irons are respectively provided at both ends in the transverse direction, and the balance track is fixedly connected to the blocks through bolts; a built-in connection assembly with an energy-absorbing device is provided on the outer side of the bottom of the guardrail box; A chain connection assembly and a chain with an energy-absorbing device are arranged outside the two sides of the guardrail box body. 2. The buffer guardrail according to claim 1, characterized in that there are protective plates on the inner sides of the lower parts of both ends of the guardrail box, and the protective plates are fixedly connected with the guardrail box by rivets. 3. The buffer guardrail according to claim 1, characterized in that there are 7-9 balance rails. 4. The buffer barrier according to claim 1, characterized in that the size of the buffer block is larger than the size of the grooves on both sides of the guardrail box. 5. The buffer guardrail according to claim 1, characterized in that the embedded part connection assembly with energy-absorbing device is composed of a backing plate, a buffer connecting buckle connected with the backing plate, and the inside of the buffer connecting buckle The bottom is connected with an integral spring, the inner sleeve is integrally connected with the top of the spring, and the nut is threadedly connected with the inner sleeve. 6. The highway buffer guardrail according to claim 1, characterized in that the chain connection assembly with the energy-absorbing device is also composed of a backing plate, the buffer connection buckle connected with the backing plate, and the buffer connection buckle in the described buffer connection buckle The bottom is connected with an integral spring, the inner sleeve is integrally connected with the top of the spring, and the nut is threadedly connected with the inner sleeve.