Rotary energy-absorbing crash column for roads

Abstract

The utility model discloses a kind of rotary energy-absorbing type anti-collision columns for road, it includes positioning column, bearing, energy-absorbing roller and coil spring, the bottom of positioning column is fixed on subgrade, bearing is sleeved and fixed outside positioning column, energy-absorbing roller is sleeved and fixed outside bearing, energy-absorbing roller is elastomeric structure, coil spring is arranged between positioning column and energy-absorbing roller;Energy-absorbing roller is impacted by vehicle and rotates, thereby play the role of guiding, reduce the secondary injury risk of rollover and spin in place occurs;The rotation of energy-absorbing roller drives coil spring to tighten, in the process of coil spring tightening, part of impact force is stored by elastic potential, and then the impact of vehicle plays the role of buffering, reduce the damage of personnel in vehicle;At the same time, the rolling friction conversion of energy-absorbing roller and the elastic potential buffering of coil spring, the combination of both can further significantly reduce the damage of personnel in vehicle.

Description

Technical Field

[0001] This utility model relates to the technical field of safety facilities for traffic roads, and in particular to a crash barrier that can buffer and absorb energy. Background Technology

[0002] With the increasing popularity of automobiles, road traffic accidents are also occurring frequently, making road safety a major concern. Cases of injuries to vehicle occupants due to traffic accidents are also common; cases of vehicles veering off the road and injuring pedestrians, and cases of occupants of oncoming vehicles being injured in collisions are also frequent.

[0003] To prevent vehicles from running off the road and injuring pedestrians and colliding with oncoming vehicles, first-generation guardrails were installed along the roadside. These guardrails are typically rigid crash barriers, usually made of steel or concrete. While they effectively prevent vehicles from running off the road and injuring pedestrians and oncoming vehicles, the direct impact (or collision) between the vehicle and the rigid guardrail has several consequences. First, the occupants of the vehicle will directly bear a significant impact force, potentially causing serious injuries or even death. Second, this rigid impact can easily cause the vehicle to overturn or spin, resulting in secondary injuries to the occupants and exacerbating their injuries.

[0004] In response, researchers designed a second-generation energy-absorbing guardrail with impact buffering capabilities. This type of guardrail is typically made of hollow polyurethane material, which can be filled with water or sand to increase energy absorption and stability. While this type of guardrail can absorb some energy and reduce some damage, it lacks active guidance functionality, making vehicles prone to overturning or spinning out after a collision, increasing the risk of secondary accidents.

[0005] Therefore, there is an urgent need for a rotating energy-absorbing bollard for roads that can both absorb energy and guide colliding vehicles. Utility Model Content

[0006] The purpose of this utility model is to provide a rotating energy-absorbing bollard for roads, which can both absorb energy and buffer impacts, and guide colliding vehicles.

[0007] To achieve the above objectives, this utility model provides a rotating energy-absorbing bollard for roads, comprising: A positioning post, the bottom of which is fixedly installed on the roadbed so that the positioning post is upright, and the prescribed driving direction of the road on the side of the roadbed is the first direction; At least two bearings, the inner rings of which are fitted and fixed to the outside of the positioning post; the bearings are distributed at equal intervals outside the positioning post; An energy-absorbing roller has a hollow structure as an elastomer, the hollow structure forming a mounting cavity, the outer ring of the bearing being fixedly connected to the cavity wall of the mounting cavity, and the energy-absorbing roller being rotatably connected to the positioning post via the bearing. A coil spring, the inner end of which is fixedly connected to the positioning post, and the outer end of which is fixedly connected to the cavity wall of the mounting cavity; The energy-absorbing roller rotates clockwise due to the impact in the first direction, and the coil spring tightens; several energy-absorbing guide protrusions protrude from the outer surface of the energy-absorbing roller.

[0008] Compared with existing technologies, this invention fixes the bottom of the positioning post to the roadbed during use. When a vehicle traveling in the prescribed direction on the road loses control, it will typically impact the rotating energy-absorbing bollard of this invention at an acute angle to the extension line of the roadbed. Upon impact, the vehicle directly contacts the energy-absorbing roller. The energy-absorbing guide protrusion on the outer surface of the roller first contacts the vehicle, absorbing part of the impact energy through elastic deformation. The hollow structure of the energy-absorbing roller, as an elastic body, further disperses the impact force through material deformation, thus buffering the impact and reducing injury to occupants. Meanwhile, the bearing of this utility model allows the energy-absorbing roller to rotate freely around the positioning post. Since the vehicle is traveling in the first direction, it impacts the energy-absorbing roller at an acute angle to the extension line of the roadbed. This impact causes the energy-absorbing roller to rotate clockwise, guiding the vehicle to continue moving in the first direction and reducing the risk of secondary injuries from rollovers and spinning. Furthermore, the rolling friction converts some of the impact energy into rotational kinetic energy, reducing the impact force on the vehicle and significantly minimizing injuries to occupants. The clockwise rotation of the energy-absorbing roller causes the coil spring to tighten. During this tightening process, the elastic potential energy stores some of the impact force, further cushioning the impact and reducing injuries to occupants. Simultaneously, the combination of the rolling friction conversion by the energy-absorbing roller and the elastic potential energy buffering by the coil spring significantly reduces injuries to occupants. The energy-absorbing guide protrusion design of this application not only enhances the energy absorption effect but also guides the vehicle to move in a predetermined direction, avoiding secondary collisions and further reducing injuries to occupants. This utility model's combined structure achieves multi-stage conversion and dissipation of impact energy, as well as vehicle guidance, effectively reducing the occurrence of secondary injuries from vehicle rollovers and spinning out, and minimizing injuries to occupants. It is highly practical and suitable for widespread application, especially at road bends.

[0009] Preferably, in the rotating energy-absorbing bollard for roads of this utility model, the energy-absorbing guide protrusion is inclined, and the inclination direction of the energy-absorbing guide protrusion is opposite to the curling direction of the coil spring from the inside to the outside.

[0010] Preferably, in the rotating energy-absorbing anti-collision bollard for roads of this utility model, the energy-absorbing guide protrusions are distributed in an array.

[0011] Preferably, in the rotating energy-absorbing anti-collision post for roads of this utility model, a coil spring is provided between two adjacent bearings.

[0012] Preferably, the rotating energy-absorbing bollard for roads of this utility model also includes a dust cover, which is disposed at the top and bottom of the positioning post and fixedly connected to the energy-absorbing roller, and the positioning post rotates through the dust cover.

[0013] Preferably, in the rotating energy-absorbing anti-collision bollard for roads of this utility model, the energy-absorbing roller has a rubber structure. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the rotating energy-absorbing anti-collision bollard for roads of this utility model.

[0015] Figure 2 yes Figure 1 A sectional view of the longitudinal section.

[0016] Figure 3 Yes Figure 1 A schematic diagram of the structure after the middle energy-absorbing roller is cut open.

[0017] Figure 4 This is a schematic diagram showing the distribution of the rotating energy-absorbing anti-collision bollards of this utility model installed on the roadbed. Detailed Implementation

[0018] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0019] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0020] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0021] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0022] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0023] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0024] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0025] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0026] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0027] In view of the deficiencies in the existing technology, the applicant, based on years of practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, has actively conducted research and innovation in order to create a technology that can solve the deficiencies in the existing technology. After continuous research, design, and repeated prototype production and improvement, this utility model with practical value has finally been created.

[0028] like Figures 1-4 As shown, the rotary energy-absorbing crash barrier 100 for roads of this utility model includes a positioning post 1, a bearing 2, an energy-absorbing roller 3, and a coil spring 4. The bottom 11 of the positioning post 1 is used to fix it to the roadbed 200, making the positioning post 1 upright, thereby allowing the rotary energy-absorbing crash barrier 100 for roads of this utility model to be uprightly installed on the roadbed 200. Specifically, the bottom 11 of the positioning post 1 is fixed to the roadbed 200 by screws; or a hole is opened at the corresponding position on the roadbed 200, the bottom 11 of the positioning post 1 is inserted into the hole and fixed by screws, and after the screws are fixed, cement is poured to seal and fill the hole.

[0029] like Figures 1-4As shown, this utility model includes at least two bearings 2. The inner ring 21 of the bearing 2 is sleeved and fixed to the outside of the positioning post 1, thereby making the inner ring 21 of the bearing 2 fixedly connected to the positioning post 1. The bearings 2 are evenly distributed outside the positioning post 1. The energy-absorbing roller 3 of this utility model has a hollow structure of an elastic body, and the hollow structure forms a mounting cavity 31. The bearings 2 of this utility model are sleeved and fixed to the outside of the positioning post 1 and located inside the mounting cavity 31 of the energy-absorbing roller 3. Ball bearings 23 are provided between the inner ring 21 and the outer ring 22 of the bearing 2 to realize the relative rotational connection between the two. The outer ring 22 of the bearing 2 is fixedly connected to the cavity wall of the mounting cavity 31, so that the energy-absorbing roller 3 can rotate synchronously with the outer ring 22. Therefore, the energy-absorbing roller 3 is rotatably connected to the positioning post 1 by means of the bearings 2. The coil spring 4 of this utility model is disposed in the mounting cavity 31. The inner end 41 of the coil spring 4 is fixedly connected to the positioning post 1, and the outer end 42 of the coil spring 4 is fixedly connected to the cavity wall of the mounting cavity 31. This allows the coil spring 4 to undergo elastic deformation as the energy-absorbing roller 3 rotates, thereby providing cushioning and energy absorption when a vehicle collides with this utility model. Specifically, the designated driving direction of the road 300 on the side of the roadbed 200 is the first direction, such as... Figure 4 Arrow F indicates the fixed travel direction of road 300 on the side of roadbed 200, i.e., the first direction F. When the energy-absorbing roller 4 of this invention is impacted by the first direction F and rotates clockwise, the rotation of the energy-absorbing roller 4 will cause the coil spring 4 to tighten. The tightening of the coil spring 4 will absorb part of the impact energy, playing a role in energy absorption and buffering. In order to increase the energy absorption, buffering and guiding effect of this invention, several energy-absorbing guide protrusions 32 protrude from the outer surface of the energy-absorbing roller 3 of this invention.

[0030] Combination Figures 1-4 As shown, in use, the bottom 11 of the positioning post 1 is fixed to the roadbed 200. When a vehicle traveling in the first direction F on the road 300 loses control, it will typically impact the rotating energy-absorbing bollard 100 installed on the roadbed 200 at an acute angle to the extension line of the roadbed 200. During the impact, the vehicle directly contacts the energy-absorbing roller 3. The energy-absorbing guide protrusion 32 on the outer surface of the energy-absorbing roller 3 first contacts the vehicle, and the energy-absorbing guide protrusion 32 absorbs part of the impact energy through elastic deformation. As a hollow structure of an elastic body, the energy-absorbing roller 32 further disperses the impact force through material deformation, thereby buffering the impact of the vehicle and reducing the injury to the occupants of the vehicle. Meanwhile, the bearing 2 of this utility model allows the energy-absorbing roller 3 to rotate freely around the positioning post 1. Since the vehicle is traveling in the first direction F, the vehicle impacts the energy-absorbing roller 3 at an acute angle to the extension line of the roadbed 200, which will cause the energy-absorbing roller 3 to be impacted in the first direction F, thereby causing the energy-absorbing roller F to rotate clockwise. Figure 1 and Figure 3As shown by arrow G, the energy-absorbing roller 3 guides the vehicle to continue moving along the first direction F, reducing the risk of secondary injuries from rollovers and spinning. Simultaneously, it converts the vehicle's impact energy through rolling friction, transforming some of the impact energy into rotational kinetic energy, reducing the impact force on the vehicle and significantly minimizing injuries to occupants. The clockwise rotation of the energy-absorbing roller 3 causes the coil spring 4 to tighten. During this tightening process, the coil spring 4 stores some of the impact force through elastic potential energy, thus buffering the impact and further reducing injuries to occupants. Simultaneously, the combination of the rolling friction conversion of the energy-absorbing roller 3 and the elastic potential energy buffering of the coil spring 4 further significantly reduces injuries to occupants. The energy-absorbing guide protrusion 32 on the energy-absorbing roller 3 not only enhances the energy absorption effect but also guides the vehicle to move in a predetermined direction, avoiding secondary collisions and further reducing injuries to occupants. The combined structure of the rotating energy-absorbing anti-collision bollard 100 for roads of this utility model realizes multi-level conversion and dissipation of impact energy, as well as vehicle guidance. It can effectively reduce the occurrence of secondary injury risks caused by vehicle rollover and spinning in place, and reduce the injury of people inside the vehicle. It is highly practical and suitable for widespread use, especially for road bends.

[0031] Continue to combine Figures 1-4 As shown, in a preferred embodiment of the present invention, the energy-absorbing guide protrusion 32 of the road rotating energy-absorbing crash barrier 100 is inclined, and the inclination direction of the energy-absorbing guide protrusion 32 is opposite to the curling direction of the coil spring 4 from the inside to the outside. The inclination direction of the energy-absorbing guide protrusion 32 is opposite to the curling direction of the coil spring 4 from the inside to the outside, allowing the energy-absorbing guide protrusion 32 to better meet the impact angle of the vehicle when it impacts the energy-absorbing roller 3, ensuring that the vehicle contacts the energy-absorbing guide protrusion 32 immediately and preventing slippage during contact. Furthermore, the energy-absorbing roller 3 and the coil spring 4 connected to it can intervene immediately in the vehicle impact to absorb and buffer energy, improving the reaction time of the present invention in the face of vehicle impact and further reducing injuries to occupants of the vehicle.

[0032] Continue to combine Figures 1-4 As shown, in order to improve the overall balanced impact buffering of the rotating energy-absorbing anti-collision bollard 100 for road use and ensure its own firmness, the energy-absorbing guide 32 of this utility model is distributed in an array, and the coil spring 4 is provided between two adjacent bearings 2.

[0033] Continue to combine Figures 1-4As shown, in order to improve the service life of the rotating energy-absorbing bollard 100 for road use and ensure its normal function, the rotating energy-absorbing bollard 100 for road use also includes a dust cover 5. The dust cover 5 is disposed at the top and bottom of the positioning post 1 and is fixedly connected to the energy-absorbing roller 3. The positioning post 1 rotates through the dust cover 5. By setting the dust cover 5, it is possible to effectively prevent foreign objects from entering the mounting cavity 31 and ensure that the coil spring 4 and bearing 2 in the mounting cavity 31 can function normally.

[0034] Continue to combine Figures 1-4 As shown, in the preferred embodiment of the present invention, the energy-absorbing roller 3 of the road rotating energy-absorbing anti-collision post 100 is of rubber structure; the energy-absorbing roller 3 of rubber structure can not only effectively resist the harsh outdoor environment, but also improve the elastic buffer performance, and is highly practical.

[0035] This utility model relates to a rotating energy-absorbing road bumper 100. Through the structural combination of a positioning post 1, a bearing 2, an energy-absorbing roller 3, and a coil spring 4, when a vehicle collides with this utility model, the energy-absorbing roller 3 rotates due to the impact, effectively guiding the vehicle and reducing the risk of secondary injuries from rollovers and spinning. Simultaneously, the rotation of the energy-absorbing roller 3 drives the coil spring 4 to rotate, causing it to tighten. During this tightening process, the coil spring 4 stores some of the impact force through elastic potential energy, thus buffering the impact and reducing injury to occupants. Furthermore, the combination of the rolling friction conversion of the energy-absorbing roller 3 and the elastic potential energy buffering of the coil spring 4 further significantly reduces injury to occupants. Therefore, this rotating energy-absorbing road bumper 100 not only absorbs energy and buffers impacts but also guides colliding vehicles, thereby reducing injury to occupants. It is highly practical and suitable for widespread application.

[0036] Furthermore, the working principles and structures of the bearing 2 and coil spring 4 involved in this utility model are well known to those skilled in the art, and will not be described in detail here.

[0037] It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, the embodiments disclosed above are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Therefore, equivalent variations made within the scope of the claims of this utility model are still within the scope of this utility model.

Claims

1. A rotating energy-absorbing crash barrier for roads, characterized in that, include: A positioning post, the bottom of which is fixedly set on the roadbed so that the positioning post is upright, and the prescribed driving direction of the road on the side of the roadbed is the first direction; At least two bearings, the inner rings of which are fitted and fixed to the outside of the positioning post; the bearings are distributed at equal intervals outside the positioning post; An energy-absorbing roller has a hollow structure as an elastomer, the hollow structure forming a mounting cavity, the outer ring of the bearing being fixedly connected to the cavity wall of the mounting cavity, and the energy-absorbing roller being rotatably connected to the positioning post via the bearing. A coil spring, the inner end of which is fixedly connected to the positioning post, and the outer end of which is fixedly connected to the cavity wall of the mounting cavity; The energy-absorbing roller rotates clockwise due to the impact in the first direction, and the coil spring tightens; several energy-absorbing guide protrusions protrude from the outer surface of the energy-absorbing roller.

2. The rotating energy-absorbing bollard for roads according to claim 1, characterized in that, The energy-absorbing guide protrusion is inclined, and the inclination direction of the energy-absorbing guide protrusion is opposite to the coiling direction of the coil spring from the inside to the outside.

3. The rotating energy-absorbing bollard for roads according to claim 1, characterized in that, The energy-absorbing guide protrusions are distributed in an array.

4. The rotating energy-absorbing bollard for roads according to claim 1, characterized in that, The coil spring is provided between two adjacent bearings.

5. The rotating energy-absorbing bollard for roads according to claim 1, characterized in that, It also includes a dust cover, which is located at the top and bottom of the positioning post and is fixedly connected to the energy-absorbing roller. The positioning post rotates through the dust cover.

6. The rotating energy-absorbing bollard for roads according to claim 1, characterized in that, The energy-absorbing roller has a rubber structure.

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