Protective facility for national roads or provincial roads
By designing protective facilities for national or provincial highways, using the combination of buffer blocks and buffer sleeves, the problem of poor energy efficiency of existing guardrail structures absorbing impacts during vehicle collisions is solved, and the effect of effectively reducing vehicle kinetic energy and ensuring personal safety is achieved.
Patent Information
- Application Number
- CN202420471167.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-03-11
AI Technical Summary
The existing guardrail structure has poor energy efficiency when a vehicle crashes, and cannot effectively reduce the vehicle's kinetic energy, resulting in serious damage to the vehicle and personal safety cannot be guaranteed.
A protective facility for national or provincial highways was designed, including multiple support columns, buffer sleeves, buffer blocks, drive plates, connecting rods and guardrails. When the guardrail is impacted by external impact, the buffer block provides a first buffer through the drive plate and the connecting rod guardrail, and the buffer sleeve provides deformation as the second buffer to absorb kinetic energy.
Through the combination of buffer blocks and buffer sleeves, a large amount of kinetic energy can be effectively absorbed, the degree of vehicle damage can be reduced, and personal safety can be guaranteed.
Smart Images
Figure CN222990623U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of highway protection, and more specifically, it relates to protection facilities for national highways or provincial highways. Background Art
[0002] A traffic guardrail is a traffic safety facility set at positions such as the outside of the road shoulder, the traffic separation belt, and the curb of the sidewalk. It absorbs collision energy through self-deformation or vehicle climbing, thereby changing the driving direction of the vehicle, preventing the vehicle from going out of the road or entering the oncoming lane, and minimizing the harm to the occupants to the greatest extent. The roadside guardrail is used to protect the vehicle and the people inside the vehicle from being collided by natural or artificial objects beside the road. The vehicle hitting the traffic guardrail may damage both the vehicle and the guardrail itself. There are many sizes and shapes of guardrails, and the choice of guardrail type depends on various factors, including the environment where the highway is located, as well as the speed and traffic volume.
[0003] For the traditional guardrail structure, its bottom is directly fixed in the underlying concrete or foundation. When the vehicle gets out of control, it will directly hit the guardrail. Since the guardrail does not have a good buffering and yielding ability, it causes serious deformation of the guardrail and the vehicle. Although the existing guardrail structure can absorb a certain amount of impact energy, the absorption effect is poor, and it cannot effectively reduce the kinetic energy of the vehicle, resulting in serious damage to the vehicle and the personal safety cannot be guaranteed. Summary of the Utility Model
[0004] The purpose of the utility model is to provide protection facilities for national highways or provincial highways, aiming to solve the problems of poor absorption effect, inability to effectively reduce the kinetic energy of the vehicle, resulting in serious damage to the vehicle and the personal safety cannot be guaranteed.
[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide protection facilities for national highways or provincial highways, including:
[0006] A plurality of support columns, which are arranged at intervals along the length direction of the highway;
[0007] A buffer sleeve, the outer side surface of the buffer sleeve is fixed on the outer wall of the support column close to the highway;
[0008] A buffer block, which is arranged in the buffer sleeve, and the buffer block is made of a flexible material;
[0009] A driving plate, which is arranged between the buffer block and the buffer sleeve, and the driving plate is arranged on the side of the buffer block far from the support column;
[0010] A connecting rod, which penetrates through the buffer sleeve and is slidably matched with the buffer sleeve; the connecting rod is vertically fixed on the driving plate;
[0011] A guardrail, and the guardrail is fixed to the ends of a plurality of the connecting rods;
[0012] When the guardrail is subjected to an external impact, the buffer block provides a first buffer for the guardrail through the driving plate and the connecting rod, and the buffer sleeve is used to provide a second buffer for the guardrail.
[0013] In a possible implementation, the buffer sleeve is prism-shaped and vertically arranged.
[0014] In a possible implementation, the buffer sleeve is fixed to the support column by welding.
[0015] In a possible implementation, the buffer block includes a housing and buffer liquid filled in the housing, and the housing has a certain telescopic property.
[0016] In a possible implementation, the buffer liquid is doped with pigments for warning.
[0017] In a possible implementation, limiting plates are fixed to both the upper and lower sides of the driving plate, and the limiting plates extend from the driving plate to the side of the support column; there is a certain gap between the outer edge of the limiting plate and the inner wall of the buffer sleeve; the buffer block is located between the two limiting plates.
[0018] In a possible implementation, a pressure relief port is provided through the limiting plate located above, and a pin is fixed in the middle of the pressure relief port.
[0019] In a possible implementation, the distance between the two limiting plates increases in the direction from the driving plate to the support column.
[0020] In a possible implementation, a limiting sleeve is fixed to the side wall of the buffer sleeve away from the support column, and the connecting rod is slidably engaged with the limiting sleeve.
[0021] In a possible implementation, a bolt is connected to the guardrail, and the bolt penetrates through the guardrail and is threadedly connected to the end of the connecting rod.
[0022] The beneficial effects of the protection facility for national highways or provincial highways provided by the present utility model are as follows: Compared with the prior art, in the protection facility for national highways or provincial highways of the present utility model, a plurality of support columns are arranged at intervals along the length direction of the road, and the outer side surface of the buffer sleeve is fixed to the outer wall of the support column close to the road. The buffer block is arranged in the buffer sleeve, and at the same time, the buffer sleeve is made of a flexible material. The driving plate is located on the side of the buffer block away from the support column, and at the same time, the driving plate is arranged between the buffer block and the buffer sleeve. The connecting rod penetrates through the buffer sleeve and is slidably engaged with the buffer sleeve, and at the same time, the connecting rod is vertically fixed to the driving plate, and the guardrail is fixed to a plurality of connecting rods.
[0023] In the actual application process, when the guardrail is impacted externally, the guardrail drives the connecting rod and the driving plate to move towards the support column. During the movement of the driving plate, the buffer block will be squeezed, thus serving as the first buffer. Eventually, the guardrail will squeeze the buffer sleeve, and the deformation of the buffer sleeve serves as the second buffer. In this application, the buffer block and the buffer sleeve play a role in buffering external impacts, can absorb a large amount of kinetic energy, thereby reducing the damage degree of the vehicle and ensuring personal safety. Brief Description of the Drawings
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0025] Figure 1 It is a schematic structural diagram of the protection facility for national highways or provincial highways provided by the embodiment of the present invention;
[0026] Figure 2 It is a schematic connection diagram of the limiting plate and the driving plate provided by the embodiment of the present invention.
[0027] In the figure: 1, support column; 2, guardrail; 3, connecting rod; 4, buffer liquid; 5, housing; 6, limiting plate; 7, limiting sleeve; 8, driving plate; 9, pin; 10, buffer sleeve. Detailed Embodiments
[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the following further details the present invention in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0029] Please refer to Figure 1 and Figure 2, the protective facilities for national highways or provincial highways provided by the present utility model will be described below. The protective facilities for national highways or provincial highways include: a plurality of support columns 1, a buffer sleeve 10, a buffer block, a driving plate 8, a connecting rod 3, and a guardrail 2. The plurality of support columns 1 are arranged at intervals along the length direction of the highway. The outer side surface of the buffer sleeve 10 is fixed on the outer wall of the support column 1 close to the highway. The buffer block is arranged in the buffer sleeve 10, and the buffer block is made of a flexible material. The driving plate 8 is arranged between the buffer block and the buffer sleeve 10, and the driving plate 8 is arranged on the side of the buffer block away from the support column 1. The connecting rod 3 penetrates through the buffer sleeve 10 and is slidably matched with the buffer sleeve 10; the connecting rod 3 is vertically fixed on the driving plate 8. The guardrail 2 is fixed at the ends of the plurality of connecting rods 3. When the guardrail 2 is externally impacted, the buffer block provides the first buffer for the guardrail 2 through the driving plate 8 and the connecting rod 3, and the buffer sleeve 10 is used to provide the second buffer for the guardrail 2.
[0030] The beneficial effects of the protective facilities for national highways or provincial highways provided by the present utility model are as follows: Compared with the prior art, in the protective facilities for national highways or provincial highways of the present utility model, a plurality of support columns 1 are arranged at intervals along the length direction of the highway, and the outer side surface of the buffer sleeve 10 is fixed on the outer wall of the support column 1 close to the highway. The buffer block is arranged in the buffer sleeve 10, and at the same time, the buffer sleeve 10 is made of a flexible material. The driving plate 8 is located on the side of the buffer block away from the support column 1, and at the same time, the driving plate 8 is arranged between the buffer block and the buffer sleeve 10. The connecting rod 3 penetrates through the buffer sleeve 10 and is slidably matched with the buffer sleeve 10. At the same time, the connecting rod 3 is vertically fixed on the driving plate 8, and the guardrail 2 is fixed on the plurality of connecting rods 3.
[0031] In the actual application process, when the guardrail 2 is externally impacted, the guardrail 2 drives the connecting rod 3 and the driving plate 8 to move towards the support column 1. During the movement of the driving plate 8, the buffer block will be squeezed, thereby serving as the first buffer. The guardrail 2 will finally squeeze the buffer sleeve 10, and the deformation of the buffer sleeve 10 serves as the second buffer. In this application, the buffer block and the buffer sleeve 10 play a role in buffering external impacts, can absorb a large amount of kinetic energy, thereby reducing the damage degree of the vehicle and ensuring personal safety.
[0032] The highway guardrail 2 is the most important traffic infrastructure. The expressways in our country play an important role in the development of the national economy and society. The highway guardrail 2 is an important facility for the maintenance and safety guarantee of expressways. Through the highway guardrail 2, the vehicles having accidents can be intercepted, preventing the vehicles from rushing out of the road surface and falling off the cliff, effectively ensuring people's life and property safety.
[0033] In some embodiments of the protective facilities for national highways or provincial highways provided by this application, please refer to Figure 1, the buffer sleeve 10 is prism-shaped and vertically arranged. A buffer block is arranged inside the buffer sleeve 10. When the guardrail 2 is impacted externally, the guardrail 2 will first drive the connecting rod 3 and the driving plate 8 to move and compress the buffer block. During the process of the buffer block being compressed and deformed, the distance between the guardrail 2 and the buffer sleeve 10 gradually decreases until the guardrail 2 starts to squeeze the buffer sleeve 10.
[0034] In order to enable the buffer sleeve 10 to play a certain buffering role, the buffer sleeve 10 can be in the shape of a hollow hexagonal prism, the buffer sleeve 10 is vertically arranged, and one side of the buffer sleeve 10 is directly fixed on the outer wall of the support column 1. The buffer sleeve 10 is made of metal material, so it can absorb a certain amount of impact energy.
[0035] In some embodiments of the protection facilities for national highways or provincial highways provided in the present application, please refer to Figure 1 , the buffer sleeve 10 is welded and fixed on the support column 1. By welding and fixing the buffer sleeve 10 on the support column 1, it is ensured that there is sufficient connection strength between the buffer sleeve 10 and the support column 1. More importantly, the buffer sleeve 10 is the key to supporting the entire guardrail 2. If the buffer sleeve 10 is deformed, the shape and position of the guardrail 2 will also change.
[0036] After the buffer sleeve 10 is welded and fixed on the support column 1, anti-rust treatment is required to avoid a series of problems such as cracks.
[0037] In some embodiments of the protection facilities for national highways or provincial highways provided in the present application, please refer to Figure 1 , the buffer block includes a housing 5 and a buffer liquid 4 filled in the housing 5, and the housing 5 has a certain telescopic performance. One function of the guardrail 2 is to reduce the driving kinetic energy of the vehicle. During the process of the vehicle hitting the guardrail 2, the guardrail 2 needs to provide a reverse force to the vehicle, and this force can gradually reduce the speed of the vehicle and finally make the vehicle stop.
[0038] If the buffer block is made of a whole piece of material such as rubber, after the speed of the vehicle gradually drops to zero, the compressed buffer block will release potential energy, which may cause the vehicle to move in a direction away from the guardrail 2. This phenomenon needs to be avoided because there may be other vehicles passing by beside the vehicle at this time, and the vehicle's re-movement will also cause personal injuries.
[0039] Therefore, the buffer block consists of two parts. The buffer liquid 4 itself has a certain viscosity and poor fluidity, and the housing 5 is made of a flexible material with certain telescopic properties. It is necessary to appropriately adjust the wall thickness of the housing 5 or set a pressure relief port with relatively low structural strength at the corresponding position of the housing 5. The ultimate goal is that the housing 5 can rupture after being subjected to a sufficiently large extrusion force. When the buffer block is compressed, the hydraulic pressure of the buffer liquid 4 increases. When the hydraulic pressure of the buffer liquid 4 increases to a certain extent, it will spray out from the housing 5. At this time, the buffer block will not have a large reverse thrust on the guardrail 2, ensuring the effective absorption of the vehicle's kinetic energy.
[0040] In some embodiments of the protective facilities for national highways or provincial roads provided in the present application, please refer to Figure 1 , pigments for warning are doped in the buffer liquid 4. The speed of the vehicle hitting the guardrail 2 is relatively fast, so the buffer block will be impacted in a short time and the buffer liquid 4 will be extruded from the housing 5. To avoid the expansion of the accident, by doping pigments in the buffer liquid 4, the pigments can be red. After the vehicle hits the guardrail 2, the buffer liquid 4 doped with pigments will splash to a certain height, thus having a warning effect on other vehicles.
[0041] In some embodiments of the protective facilities for national highways or provincial roads provided in the present application, please refer to Figure 1 , a pressure relief port is provided through the upper limiting plate 6. A pin 9 is fixed in the middle of the pressure relief port. The purpose of setting the pin 9 is to cause the housing 5 to rupture when it comes into contact with the pin 9 after being compressed and deformed, avoiding the problem that the housing 5 cannot rupture from the gap between the limiting plate 6 and the buffer sleeve 10 after being compressed.
[0042] In some embodiments of the protective facilities for national highways or provincial roads provided in the present application, please refer to Figure 1 and Figure 2 , limiting plates 6 are fixed on both the upper and lower sides of the driving plate 8, and the limiting plates 6 extend from the driving plate 8 towards the support column 1; there is a certain gap between the outer edge of the limiting plate 6 and the inner wall of the buffer sleeve 10; the buffer block is located between the two limiting plates 6. To ensure that the buffer block can be effectively compressed and deformed, that is, to enable the buffer block to contract and deform in a certain direction, and at the same time avoid the buffer block slipping out of the buffer sleeve 10 after being compressed, limiting plates 6 are fixed on both the top and bottom edges of the driving plate 8, and the buffer block is limited between the two limiting plates 6.
[0043] When the guardrail 2 is impacted, the two limiting plates 6 move along with the driving plate 8. At this time, there is a certain distance between the limiting plate 6 and the inner wall of the buffer sleeve 10, that is, it is necessary to ensure that the limiting plate 6 does not contact the inner wall of the buffer sleeve 10, so that at the beginning, only the buffer block is used to resist the deformation of the guardrail 2. And due to the limitation of the two limiting plates 6, it can be ensured that the buffer block deforms between the two limiting plates 6.
[0044] In some embodiments of the protective facilities for national highways or provincial roads provided in the present application, please refer to Figure 1 , the distance between the two limiting plates 6 increases in the direction from the driving plate 8 to the support column 1. When the buffer block fails to stop the continuous deformation of the guardrail 2, the guardrail 2 will directly squeeze the buffer sleeve 10. If the limiting plates 6 are vertically abutted against the inner wall of the buffer sleeve 10 at this time, the impact force of the vehicle hitting the guardrail 2 will be directly transmitted to the support column 1 through the two limiting plates 6, so that the two limiting plates 6 limit the problem of deformation of the buffer sleeve 10. Then the deformable space of the guardrail 2 will become smaller at this time, and the buffering effect will become worse.
[0045] Therefore, the distance between the two limiting plates 6 gradually expands. Through the above settings, when the limiting plate 6 abuts against the support column 1, the connection between the limiting plate 6 and the driving plate 8 will deform, that is, the upper limiting plate 6 swings upward and the lower limiting plate 6 swings downward. At this time, a certain buffering effect can be achieved, and the deformation of the buffer sleeve 10 will not be prevented.
[0046] In some embodiments of the protective facilities for national highways or provincial roads provided in the present application, please refer to Figure 1 , a limiting sleeve 7 is fixed on the side wall of the buffer sleeve 10 away from the support column 1, and the connecting rod 3 is slidably matched with the limiting sleeve 7. The connecting rod 3 is usually horizontally arranged. One end of the connecting rod 3 is fixed on the guardrail 2, and the other end is connected to the driving plate 8. Since the thickness of the buffer sleeve 10 itself is relatively low, the connecting rod 3 will swing downward under the action of the gravity of the guardrail 2.
[0047] For the above reasons, a limiting sleeve 7 is fixed on the side wall of the buffer sleeve 10, and the connecting rod 3 is slidably matched with the limiting sleeve 7. The connecting rod 3 is limited by the limiting sleeve 7, thereby ensuring the stability of the position of the guardrail 2.
[0048] In some embodiments of the protective facilities for national highways or provincial roads provided in the present application, please refer to Figure 1 , a bolt is connected to the guardrail 2, and the bolt penetrates through the guardrail 2 and is threadedly connected to the end of the connecting rod 3. The bolt penetrates through the guardrail 2 and is threadedly connected to the end of the connecting rod 3, thereby ensuring the reliable connection of the guardrail 2 relative to the connecting rod 3. The limiting sleeve 7 penetrates through the buffer sleeve 10 and is fixedly connected to the buffer sleeve 10. The axis of the limiting sleeve 7 is perpendicular to the axis of the buffer sleeve 10.
[0049] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. Protective facilities for national or provincial roads, characterized in that: include: A plurality of support columns are arranged at intervals along the length of the highway; A buffer sleeve, the outer side of which is fixed to the outer wall of the support column close to the road; A buffer block is arranged in the buffer sleeve, and the buffer block is made of a flexible material; A driving plate, arranged between the buffer block and the buffer sleeve, and the driving plate is arranged on a side of the buffer block away from the supporting column; A connecting rod passes through the buffer sleeve and is slidably matched with the buffer sleeve; the connecting rod is vertically fixed on the driving plate; A guardrail, the guardrail being fixed to the ends of the plurality of connecting rods; When the guardrail is subjected to external impact, the buffer block provides a first buffer for the guardrail through the driving plate and the connecting rod, and the buffer sleeve is used to provide a second buffer for the guardrail.
2. The protective facility for national or provincial roads according to claim 1, characterized in that: The buffer sleeve is prism-shaped and vertically arranged.
3. The protective facility for national or provincial roads according to claim 2, characterized in that: The buffer sleeve is welded and fixed on the support column.
4. The protective facility for national or provincial roads according to claim 1, characterized in that: The buffer block comprises a shell and a buffer filled in the shell, and the shell has a certain stretchability.
5. The protective facility for national or provincial roads according to claim 4, characterized in that: The buffer solution is doped with a pigment for warning.
6. The protective facility for national or provincial roads according to claim 1, characterized in that: Limiting plates are fixed to the upper and lower sides of the driving plate, and the limiting plates extend from the driving plate to one side of the supporting column; there is a certain gap between the outer edge of the limiting plate and the inner wall of the buffer sleeve; the buffer block is located between the two limiting plates.
7. The protective facility for national or provincial roads according to claim 6, characterized in that: The upper limit plate is provided with a pressure relief port, and a pin is fixed in the middle of the pressure relief port.
8. The protective facility for national or provincial roads according to claim 6, characterized in that: The distance between the two limit plates increases gradually from the driving plate toward the supporting column.
9. The protective facility for national or provincial roads according to claim 1, characterized in that: The buffer sleeve is fixed with a limiting sleeve on the side wall away from the supporting column, and the connecting rod is slidably matched with the limiting sleeve.
10. The protective facility for national or provincial roads according to claim 1, characterized in that: The guardrail is connected with a bolt, which passes through the guardrail and is threadedly connected with the end of the connecting rod.