CN220977810U - Pre-rotation anti-collision guard bar device - Google Patents

Abstract

A pre-rotation anti-collision guardrail device relates to the technical field of guardrails. The pre-rotation crash barrier apparatus includes a plurality of barrier structures connected by a cross beam, the barrier structures including posts, rotating drums, pin means and trigger means. When the automobile runs into the triggering range of the guardrail device, the triggering device triggers, the pin device exits from working, the pin device releases the restraining action between the sleeve and the upright post, and the roller and the sleeve start to rotate under the action of the spring. When the car hits the barrier device, the rotating drum has rotated at a certain suitable rotational speed. When a car hits the rotating drum, the rotating drum already has the most efficient rotational speed for car hit damping and steering. The situation that the efficiency of the rotation roller is low when the automobile collides with the guardrail is avoided, so that the effective guiding time of the rotation roller to the automobile is prolonged, the guiding and buffering functions of the guardrail device are improved, and the injury to a driver is greatly reduced.

Description

Pre-rotation anti-collision guard bar device

Technical Field

The utility model relates to the technical field of guardrails, in particular to a rotary anti-collision guardrail.

Background

Guardrails are barriers that reduce injury and injury to vehicles in the event of loss of control or accident. Under the premise of ensuring the anti-collision performance, the guiding performance and the buffering performance of the rotary anti-collision guardrail are improved relative to other guardrail products. When the automobile collides with the traditional rotary anti-collision guardrail, the automobile drives the rotary drum on the guardrail to start to rotate, and the rotary anti-collision drum guides the automobile to return to the normal direction through the rotation generated by the collision. However, there are problems with conventional rotating crash barrier designs. The guiding function of the rotary anti-collision guardrail on the automobile is realized by guiding the automobile through the rotation of the rotary drum. Since there is a transition from a stationary state to a peak of the rotational speed of the rotating drum to a stationary state during the crash, there is a rotational speed interval that is most efficient for the impact buffering and guiding of the vehicle during this transition. The guiding and buffering functions are not realized to the best for the car crash at the rotational speed outside the rotational speed interval, and the effective guiding time length of the car by the rotational drum is reduced compared with the actual crash time length, so that the working performance of the guardrail for guiding and buffering the car can not be fully exerted in the process.

Disclosure of Invention

The utility model aims to overcome the weakness of a rotary anti-collision guardrail and provides a pre-rotary anti-collision guardrail.

The technical scheme of the utility model is as follows: the utility model provides a rotatory anticollision barrier device in advance includes a plurality of guardrail structures of being connected through the crossbeam, guardrail structure contains stand, rotatory barrel, pin device and trigger device, and rotatory barrel is through the rotatable cover of the sleeve pipe that the middle part set up on the stand, in the recess that sets up on the sleeve pipe and the stand was blocked respectively at the both ends of the spring of exerting bending moment in advance.

The pin device comprises a wedge, a first rope and a fixed pipe, wherein the fixed pipe is arranged in the inner cavity of the upright post, one end of the wedge is inserted into a groove on the sleeve, and the other end of the wedge is inserted into the fixed pipe through a through hole on the upright post and then connected with the first rope.

The trigger device comprises a shell, a pulley, a lever and a plurality of springs, wherein the upright posts are fixed on a bottom plate at the bottom of the shell, the springs are arranged on the shell through supporting posts, the springs are used for supporting a cover plate of the shell, one end of each lever is connected with the cover plate, the other end of each lever is connected with a first rope after bypassing the pulley through a second rope, and the pulley is fixed at the bottom of the shell.

The triggering device comprises two levers, the levers adopt a folding rod structure, one end of each lever is connected with the connecting cover plate, the other end of each lever abuts against the bottom of the shell, and the second rope is connected with the first rope through the connector after bypassing the pulley.

The fixed pipe adopts a horizontal pipe or a T-shaped pipe.

The pre-rotation anti-collision guardrail device is characterized in that a cross beam is fixed on the upper part and the lower part of a plurality of continuous upright posts through bolts, and 1-4 reflective strips are arranged on the outer surface of the rotary drum.

The pre-rotation rolling barrel is the same as the common rotation rolling barrel, the rotation rolling barrel is rotatably arranged between the upper cross beam and the lower cross beam through the upright post, a spring after a certain torque is pre-applied is arranged between the sleeve and the upright post, and grooves are dug on the sleeve and the upright post wall to fix the spring and realize the rotation of the sleeve by utilizing the spring.

The wedge can move along the fixed tube. The pin means constrains the rotation of the rotating drum and sleeve when the device is not activated. The cover plate is supported by the lever and a spring on the upright post, and the second rope bypasses a pulley fixed at the bottom of the box.

The utility model has the beneficial effects that: the utility model provides a rotatory anticollision barrier device in advance includes a plurality of guardrail structures of being connected through the crossbeam, and guardrail structure contains stand, rotatory barrel, pin device and trigger device, and rotatory barrel is through the rotatable cover of the sleeve pipe that the middle part set up on the stand, and the both ends of spring clockwork spring card respectively go into in sleeve pipe and the recess on the stand. When the automobile runs into the triggering range of the guardrail device, the triggering device triggers, the pin device exits from working, the pin device releases the restraining action between the sleeve and the upright post, and the roller and the sleeve start to rotate under the action of the spring. When the car hits the barrier device, the rotating drum has rotated at a certain suitable rotational speed. When a car hits the rotating drum, the rotating drum already has the most efficient rotational speed for car hit damping and steering. The situation that the efficiency of the rotation roller is low when the automobile collides with the guardrail is avoided, so that the effective guiding time of the rotation roller to the automobile is prolonged, the guiding and buffering functions of the guardrail device are improved, and the injury to a driver is greatly reduced.

Drawings

Fig. 1 is an elevational schematic view of a pre-rotation crash barrier.

Fig. 2 is a cross-sectional elevation view of a pre-rotation crash barrier apparatus A-A.

Fig. 3 is a cross-sectional side elevation view of a pre-rotation crash barrier apparatus A-A.

Fig. 4 is a partial enlarged view of B in fig. 2.

Fig. 5 is a partial enlarged view of C in fig. 3.

FIG. 6 is a block diagram of the spring pre-stored portion of the barrier device spring.

In the figure: 1. column, 2, crossbeam, 3, rotatory rotary drum, 4, reflection strip, 5, sleeve pipe, 6, spring, 7, wedge, 8, fixed pipe, 9, first rope, 10, connector, 11, second rope, 12, apron, 13, casing, 14, lever, 15, spring, 16, pillar, 17, pulley, 18, bolt.

Detailed Description

The utility model discloses a pre-rotation anti-collision guardrail device, which comprises the following specific embodiments: fig. 1 shows an elevational schematic view of a pre-rotation crash barrier that may be used as a highway subgrade section roadside barrier, a center divider barrier. In the figure, this kind of pre-rotation crash barrier device includes a plurality of guardrail structures of being connected through the crossbeam, and guardrail structure contains stand 1, rotatory barrel 3, pin device and trigger device, and rotatory barrel 3 is rotatable the cover through the sleeve pipe 5 that the middle part set up on stand 1, and the both ends of spring 6 after the moment of torsion is applyed in advance are blocked respectively in the recess on sleeve pipe 5 and the stand 1. The pin device comprises two wedges 7, a first rope 9 and a fixed pipe 8, wherein the fixed pipe 8 is arranged in the inner cavity of the upright 1, one end of the wedges 7 is inserted into a groove on the sleeve 5, and the other end of the wedges is inserted into the fixed pipe 8 through a through hole on the upright 1 and then connected with the first rope 9; the triggering device comprises a shell 13, two pulleys 17, two levers 14 and a plurality of springs 15, wherein the upright 1 is fixed on the bottom plate of the shell 13, the springs 15 are fixed inside the shell through struts 16, the levers 14 are of a folding rod structure, one ends of the levers 14 are connected with a cover plate 12, the other ends of the levers are propped against the bottom of the shell 13, and the first ropes 9 are connected through connectors 10 after the second ropes 11 bypass the pulleys 17 (shown in fig. 2-5).

The upright post is partially buried in the ground and partially extends out of the ground. The two cross beams 2 are anchored at the upper part and the lower part of the upright post 1 through bolts 18 respectively, the rotary drum 3 is sleeved between the two cross beams on the upright post 1, three light reflecting strips 4 are arranged on the outer wall of the rotary drum 3 to warn vehicles to come and go, and the sleeve 5 helps the rotary drum 3 to rotate better. Grooves for clamping the wedges 7 are respectively arranged on the sleeve 5 and the upright 1, and the wedges 7 can restrict the relative rotation of the sleeve 5 and the upright 1 in the working state. The spring 6 is subjected to rotary energy storage by applying bending moment in advance, one end of the spring 6 with rotary potential energy is fixed on a groove of the upright post 1, and the other end of the spring 6 is fixed on a groove of the inner wall of the sleeve 5. The end of the spring 6 connected to the upright is a fixed end, while the end connected to the sleeve 5 is a rotating end (as shown in fig. 6).

The fixed pipe adopts T-shaped pipe, digs two holes on stand 1, and the both ends of T-shaped pipe are fixed on the hole wall of stand 1, change pin device's state through the first rope 9 of pull connection at wedge 7 tip. When the device is in the pre-stored state, the wedge 7 is clamped in the reserved groove on the sleeve 1 through the T-shaped pipe, and the rotation of the sleeve 5 is restrained. The pin device drives the first rope 9 to be pulled through the trigger device below to change the working state of the pin device. When the device is in the state of releasing energy, the wedge 7 moves inwards along the T-shaped pipe to withdraw from the restraining action on the sleeve 5, the spring 6 starts to release energy to drive the sleeve 5 to rotate, and the sleeve 5 and the rotary drum 3 are tightly embedded together, so that the rotary drum 3 is driven to rotate.

The triggering device is buried below the surface. The device is arranged at the position of the soil shoulder and the position of the central dividing belt, and the soil body at the upper part of the triggering device can be partially sunk. The cover plate 12 is supported by the spring 15 and one end of the lever 14, after the upper soil body is subjected to certain pressure, the spring 15 is compressed and deformed, the cover plate 12 sinks, the other end of the lever 14 is tilted, the rope 11 connected with the end of the lever 14 is pulled down, and the pulley and the connector drive the first rope 9 to move downwards, so that the two wedges 7 are pulled to move towards the inside of the fixed pipe, and the spring piece spring 6 is released.

When an accident occurs to the pre-rotation drum anti-collision guardrail, firstly the automobile runs to the triggering device range of the guardrail device and the soil shoulder position, and because the pressure generated by the automobile causes the soil mass on the soil shoulder or the central partition belt to sink, the cover plate 12 on the triggering device is caused to sink, the end part of the lever 14 is driven to tilt, the second rope 11 connected to the lever 14 is pulled, the first rope 9 on the pin device is driven to pull down in succession, the wedge 7 moves inwards and exits from the constraint state, the clockwork spring 6 starts to release energy, and the rotation drum 3 rotates along with the sleeve 5. The rotating drum 3 reaches a certain rotational speed in a short time. Thereby realizing the efficient conversion of the impact energy of the automobile into the rotational kinetic energy of the rotary drum 3, and the automobile can travel along the direction of the guardrail and return to the positive direction. Part of the impact energy is converted into the rotational kinetic energy of the rotary drum 3, and part of the impact energy is absorbed through the deformation of the rotary drum 3, so that the buffering and guiding performance of the device is realized.

Claims (4)

1. A pre-rotation crash barrier apparatus comprising a plurality of barrier structures connected by a cross beam, characterized by: the guardrail structure comprises an upright post, a rotary drum, a pin device and a triggering device, wherein the rotary drum is rotatably sleeved on the upright post through a sleeve arranged in the middle, and two ends of a spring which applies bending moment in advance are respectively clamped into grooves on the sleeve and the upright post;

The pin device comprises a wedge, a first rope and a fixed pipe, wherein the fixed pipe is arranged in an inner cavity of the upright post, one end of the wedge is inserted into a groove on the sleeve, and the other end of the wedge is inserted into the fixed pipe through a through hole on the upright post and then connected with the first rope;

The trigger device comprises a shell, a pulley, a lever and a plurality of springs, wherein the upright posts are fixed on a cover plate at the top of the shell, the springs are arranged in the shell through the support posts, one end of each lever is connected with the cover plate, the other end of each lever is connected with a first rope after bypassing the pulley through a second rope, and the pulley is fixed at the bottom of the shell.

2. The pre-rotation crash barrier apparatus as recited in claim 1 wherein the trigger means comprises two levers having a folded bar configuration with one end connected to the cover and the other end abutting the bottom of the housing and the second cord being connected to the first cord by a connector after passing around the pulley.

3. The pre-rotation crash barrier apparatus as recited in claim 1 wherein said fixed tube is a horizontal tube or a T-tube.

4. A pre-rotation crash barrier apparatus as recited in any one of claims 1-3 wherein the upper and lower portions of the posts of the plurality of barrier structures are secured by cross members, respectively, and wherein the outer surface of the rotating drum is provided with 1-4 reflective strips.