Expressway emergency evacuation device
By installing posts and double-sided ladders on highway guardrails, the problem of women, children, and the elderly having difficulty climbing over the guardrails has been solved, enabling rapid and safe evacuation. This device is suitable for various guardrail environments.
Patent Information
- Application Number
- CN202410337489.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-23
- Publication Date
- 2026-02-24
AI Technical Summary
The existing highway guardrails are too high for women, children, and the elderly to climb over, affecting evacuation efficiency and posing a risk of secondary accidents.
An emergency evacuation device for highways was designed, which includes columns, crossbars and double-sided ladders. The double-sided ladder consists of an outer ladder and an inner ladder. The outer ladder is located on the outside of the guardrail, and the inner ladder can be flipped to the inside of the guardrail to facilitate the evacuation of people with mobility impairments.
It improves the evacuation efficiency of people with mobility impairments during highway accidents, reduces the risk of secondary accidents, and is suitable for various guardrail environments.
Smart Images
Figure CN121556779A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of auxiliary equipment for highway accident evacuation, and more particularly to a highway emergency evacuation device. Background Technology
[0002] After an accident occurs on a highway, personnel need to evacuate the road quickly. Generally, occupants of emergency vehicles are required to evacuate to the outside of the guardrails on either side of the road, then call the police for help and await rescue. Currently, the height of the existing highway guardrails is approximately 110 centimeters above the road surface. Based on an average adult male height of 170 centimeters, the guardrail height is roughly at waist level. While it's not difficult for an adult male to climb over the guardrail by pressing down with both hands, it presents significant challenges for women, children, and the elderly, requiring assistance. This can slow down evacuation and potentially cause secondary accidents. Therefore, it is necessary to install auxiliary climbing devices along the highway to address this issue. Summary of the Invention
[0003] To address the aforementioned problems, this invention proposes a highway emergency evacuation device.
[0004] The technical solution of the present invention is: an emergency evacuation device for highways, characterized in that: the device includes a column and a horizontal bar set at the upper end of the column parallel to the guardrail, and a double-sided ladder installed on the horizontal bar. The double-sided ladder can be placed on the inner and outer sides of the highway guardrail respectively, so as to facilitate the evacuation of people with mobility difficulties from the highway road surface.
[0005] This double-sided ladder consists of an outer ladder and an inner ladder. The outer ladder is located outside the guardrail, with its upper part mounted on a crossbar and its lower part touching the ground. The upper end of the inner ladder is hinged to the upper part of the outer ladder via a hinge shaft, and its lower part also touching the ground. The inner ladder can be flipped around the hinge shaft to the outside of the guardrail. When not in use, the inner ladder can be placed outside without obstructing traffic.
[0006] Preferably, the upper end of the outer ladder is provided with an upwardly extending vertical column, and the hinge shaft is located on the vertical column. Since the crossbar is located at the upper end of the column outside the guardrail, and the inner side of the crossbar is also provided with a guardrail corrugated plate, the upper end of the inner ladder must be higher than the upper end of the outer ladder to avoid the inner ladder directly contacting the guardrail corrugated plate.
[0007] Preferably, the upper end of the vertical column is provided with a handrail. This makes it convenient for people to hold onto when climbing the ladder, making it more stable and safer.
[0008] Preferably, the upper part of the outer ladder is provided with a slot, the cross-sectional shape of which matches the cross-sectional shape of the crossbar, and the slot and the crossbar are fitted together with a clearance fit. This slot can slide along the axis of the crossbar, thus expanding the usability of the climbing device.
[0009] Preferably, the inner surface of the slot has a rolling member that rolls on the outer surface of the crossbar to form a rolling pair. This allows for smoother sliding.
[0010] Preferably, the rolling component includes a plurality of balls embedded in recesses on the inner surface of the slot, and a retainer fitted to the inner surface of the slot. The retainer has a through hole at a corresponding position to prevent the balls from falling out; the diameter of the through hole is smaller than the diameter of the balls. The balls are responsible for rolling contact during slot sliding, and the retainer controls the balls from falling out.
[0011] Preferably, the width of the inner ladder is smaller than the width of the outer ladder. The outer ladder has wheels installed at its ground-touching end for movement; the inner ladder has anti-slip mats installed at its ground-touching end. This ensures a good grip, prevents slipping, and avoids the outer ladder tipping over and causing an accident.
[0012] Preferably, the cross-section of the crossbar is circular, the cross-section of the slot is an arc shape with an opening facing downwards through a semicircle, and the cross-sectional shape of the retainer is also arc-shaped.
[0013] Preferably, the outer ladder is provided with a hanging hole, and the inner ladder is provided with a rotatable hook. The front end of the hook is hung in the hanging hole, and the rear end of the hook is the pivot of the hook, which is inserted into the pivot hole on the side of the inner ladder.
[0014] The beneficial technical effects of this invention are as follows: A highway emergency evacuation device includes a column and a horizontal bar parallel to the guardrail at the upper end of the column, and a double-sided ladder installed on the horizontal bar. The double-sided ladder includes an outer ladder and an inner ladder. The outer ladder is located outside the guardrail, with its upper part mounted on the horizontal bar and its lower part touching the ground. The upper end of the inner ladder is hinged to the upper part of the outer ladder via a hinge shaft, and its lower part touching the ground. The inner ladder can be flipped around the hinge shaft to the outside of the guardrail. When the device is not in use, the inner ladder flips out onto the outer ladder. In the event of an emergency on the road requiring evacuation, drivers and passengers can flip the inner ladder to the inside of the guardrail, allowing themselves or those with limited mobility to evacuate the highway using the double-sided ladder.
[0015] Furthermore, the device can slide above the guardrail and move to a different position, thus expanding its usability. Attached Figure Description
[0016] Figure 1 This is one of the three-dimensional structural diagrams of the highway emergency evacuation device in Implementation Example 1 on a highway; Figure 2 A schematic diagram of the end face structure of an emergency evacuation device on a highway. Figure 3 This is one of the three-dimensional structural diagrams of an external ladder; Figure 4 for Figure 3 A schematic diagram of the AA cross-sectional structure; Figure 5 This is the second schematic diagram of the three-dimensional structure of the external ladder; Figure 6 This is a schematic diagram of the three-dimensional structure of the inner staircase; Figure 7 This is the second schematic diagram of the three-dimensional structure of the highway emergency evacuation device on the highway in Example 1; Figure 8 This is one of the three-dimensional structural diagrams of the highway emergency evacuation device in Example 2 on a highway; Figure 9 This is the second schematic diagram of the three-dimensional structure of the highway emergency evacuation device on the highway in Example 2; 1. Highway pavement; 2. Guardrail posts; 3. Corrugated guardrail panels; 4. Horizontal bars at the top of the posts; 5. Double-sided ladder; 51. Inner ladder; 511. Anti-slip mat; 512. Ladder body; 513. Hook; 52. Outer ladder; 521. Traveling wheels; 522. Ladder body; 523. Posts; 524. Hinge shaft; 525. Handrail; 526. Slot; 527. Cage; 528. Roller; 529. Hanging hole. Detailed Implementation
[0017] Example 1: See Figure 1-7 The figure shows an emergency evacuation device for highways. The device includes a column 523 and a horizontal bar 4 set on the upper end of the column 523 parallel to the guardrail, as well as a double-sided ladder 5 installed on the horizontal bar 4. The double-sided ladder 5 can be placed on the inner and outer sides of the highway guardrail respectively to facilitate the evacuation of people with mobility difficulties from the highway surface 1.
[0018] The double-sided ladder 5 includes an outer ladder 52 and an inner ladder 51. The outer ladder 52 is located outside the guardrail, with its upper part mounted on the crossbar 4 and its lower part touching the ground. The upper end of the inner ladder 51 is hinged to the upper part of the outer ladder 52 via a hinge shaft 524, and its lower part touching the ground. The inner ladder 51 can be flipped around the hinge shaft 524 to the outside of the guardrail. When not in use, the inner ladder 51 can be placed outside without obstructing traffic.
[0019] The upper end of the outer ladder 52 is provided with an upwardly extending vertical column 523, and the hinge shaft 524 is located on the vertical column 523. Since the crossbar 4 is located on the upper end of the column 523 outside the guardrail, and the inner side of the crossbar 4 is also provided with a guardrail corrugated plate 3, the upper end of the inner ladder 51 must be higher than the upper end of the outer ladder 52 to avoid the inner ladder 51 directly contacting the guardrail corrugated plate 3.
[0020] The upper end of the vertical column 523 is equipped with a handrail 525. This provides a convenient support for people climbing the ladder, making it more stable and safer.
[0021] The upper part of the outer ladder 52 is provided with a slot 526, the cross-sectional shape of which matches the cross-sectional shape of the crossbar 4, and the slot 526 and the crossbar 4 are fitted together with a clearance fit. The slot 526 can slide along the axis of the crossbar 4, which helps to expand the application range of the climbing device.
[0022] The inner surface of the slot 526 has a rolling member that rolls on the outer surface of the crossbar 4 to form a rolling pair, which makes sliding smoother.
[0023] The rolling component includes several balls embedded in recesses on the inner surface of the slot 526, and a retainer 527 fitted to the inner surface of the slot 526. The retainer 527 has corresponding through holes to prevent the balls from falling out; the diameter of these through holes is smaller than the diameter of the balls. The balls are responsible for rolling contact during sliding of the slot 526, and the retainer 527 controls the balls from falling out.
[0024] The width of the inner ladder 51 is smaller than the width of the outer ladder 52. A walking wheel 521 is installed at the ground-touching end of the outer ladder 52 for ground contact during movement. Anti-slip mats 511 are installed at the ground-touching ends of the inner ladder 51 to ensure a secure footing, prevent slippage, and avoid the outer ladder 52 tipping over and causing an accident.
[0025] The cross-section of the crossbar 4 is circular, the cross-section of the slot 526 is an arc shape with an opening facing downwards and passing through a semicircle, and the cross-section of the retainer 527 is also arc-shaped.
[0026] The process of using this device: First, the post 523 of this device can be installed directly on the edge of the highway; if there is a post 523 on the highway guardrail, it can be used directly, and then the upper end of the post 523 is installed with a crossbar 4 parallel to the guardrail.
[0027] Then, the double-sided ladder 5 is installed on the crossbar 4 by fastening it to the crossbar 4 through the slot 526 at the bottom of the outer ladder 52. After installation, the inner ladder 51 of the double-sided ladder 5 is flipped to the outside of the guardrail and stacked on top of the outer ladder 52 for later use.
[0028] When an unexpected situation occurs on the road and the driver and passengers in the vehicle need to evacuate to the outside of the guardrail, the people in the vehicle walk to the position of the double-sided ladder 5, flip the inner ladder 51 from the outside to the inside of the guardrail, and support the lower end of the inner ladder 51 on the highway road surface 1. Then, assist women, children, the elderly and other people with limited mobility in the vehicle to evacuate to a safe area outside the guardrail through the double-sided ladder 5.
[0029] If it is found that the double-sided ladder 5 is far from the parking position, a young or strong person can be arranged to jump out of the guardrail and push the double-sided ladder 5 along the crossbar 4 to the parking position for use by people with limited mobility.
[0030] This device can also be used on other roads with guardrails.
[0031] Example 2: See Figure 8-9 Embodiment 2 is a further improvement on Embodiment 1. The similarities to Embodiment 1 will not be repeated. The difference in Embodiment 2 is that the outer ladder 52 has a hanging hole 529, and the inner ladder 51 has a rotatable hook 513. The front end of the hook 513 is inserted into the hanging hole 529. The hook 513 connects the inner and outer ladders 52 to form a stable triangular structure, controlling the stability of the inner ladder 51.
Claims
1. A highway emergency evacuation device, characterized in that: The device includes a post, a horizontal bar parallel to the railing and located at the top of the post, and a double-sided ladder mounted on the horizontal bar. This double-sided ladder includes an outer ladder and an inner ladder. The outer ladder is located outside the guardrail, with its upper part mounted on a crossbar and its lower part touching the ground. The upper part of the inner ladder is hinged to the upper part of the outer ladder via a hinge shaft, and its lower part touching the ground. The inner ladder can be flipped around the hinge shaft to the outside of the guardrail.
2. The highway emergency evacuation device according to claim 1, characterized in that: The upper end of the external ladder is provided with an upwardly extending vertical column, and the hinge shaft is located on the vertical column.
3. The highway emergency evacuation device according to claim 2, characterized in that: The upper end of the vertical column is equipped with a handrail.
4. The highway emergency evacuation device according to claim 1, characterized in that: The upper part of the outer ladder is provided with a slot, the cross-sectional shape of which matches the cross-sectional shape of the crossbar, and the slot and the crossbar are fitted together with a clearance fit.
5. The highway emergency evacuation device according to claim 4, characterized in that: The inner surface of the slot has a rolling member that rolls on the outer surface of the crossbar to form a rolling pair.
6. The highway emergency evacuation device according to claim 5, characterized in that: The rolling component includes several balls embedded in the recesses on the inner surface of the slot, and a retainer attached to the inner surface of the slot. The retainer has a through hole at a corresponding position to prevent the balls from falling out. The diameter of the through hole is smaller than the diameter of the balls.
7. The highway emergency evacuation device according to claim 1, characterized in that: The width of the inner ladder is smaller than that of the outer ladder. The outer ladder is equipped with wheels at its ground-touching end, while the inner ladder is equipped with anti-slip mats at its ground-touching end.
8. The highway emergency evacuation device according to claim 1, characterized in that: The cross-section of the crossbar is circular, the cross-section of the slot is an arc shape with an opening facing downwards and passing through a semicircle, and the cross-sectional shape of the retainer is also arc-shaped.
9. The highway emergency evacuation device according to claim 1, characterized in that: The outer ladder is provided with a hanging hole, and the inner ladder is provided with a rotatable hook, the front end of which is hooked into the hanging hole.